JP2010059740A - Faucet device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a faucet device which is conveniently used in various use situations and spouting forms. <P>SOLUTION: The faucet device (1) capable of switching a plurality of spouting forms and setting a predetermined spouting condition includes a spouting part (2), a spouting form detecting means (14) detecting a selected spouting form, a memory means (22a) storing a fixed spouting condition corresponding to a part of the spouting forms, operation parts (8, 10) changing the spouting condition, spouting condition forming means (16, 18) forming the spouting according to the spouting condition, and a control means (22) controlling the spouting condition forming means and allowing the spouting. The control means starts spouting in the fixed spouting condition corresponding to the spouting form when the spout starts in the spouting form where the fixed spouting condition is regulated, and starts spouting in the same spouting condition as that of the time of previously stopping the spout when the spout starts in the spouting form where the fixed spouting condition is not regulated. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention relates to a faucet device, and more particularly to a faucet device capable of switching a plurality of water discharge modes to discharge water and setting predetermined water discharge conditions.

  Japanese Patent Laid-Open No. 63-19017 (Patent Document 1) describes a hot and cold water mixing device. This hot and cold water mixing device is configured to be able to set the mixed hot water temperature, and is configured to set the set temperature to a predetermined initial set temperature when hot water supply is stopped.

  Japanese Utility Model Laid-Open No. 63-1000056 (Patent Document 2) describes a hot and cold water mixing device. This hot and cold water mixing device is configured so that the flow rate of water discharge can be switched and the temperature of hot water can be selected. After at least one of stoppage of water discharge, switching of hot water amount, and switching of hot water temperature is performed, a predetermined time has elapsed. After the lapse of time, the hot water amount and the hot water temperature are switched to the intermediate flow rate and the intermediate hot water temperature.

Japanese Unexamined Patent Publication No. 63-19017 Japanese Utility Model Publication No. 63-100564

  However, faucet devices have various types of water discharge, and depending on the water discharge type, there are some that are easier to use when water discharge is resumed under the water discharge conditions when used immediately before. The faucet device that is restarted is not always easy to use.

  Accordingly, an object of the present invention is to provide a faucet device that is easy to use in various usage situations and water discharge modes.

  The present invention is a water faucet device capable of switching a plurality of water discharge forms and discharging water, and can set a predetermined water discharge condition, and includes a water discharge section having a water discharge port, and a plurality of water discharge forms. A water discharge form detecting means for detecting which water discharge form is selected, a storage means for storing fixed water discharge conditions corresponding to some of the water discharge forms, and each water discharge form A single operation unit for changing the water discharge condition, a water discharge condition forming means for forming water discharge according to the water discharge condition, a water discharge form detected by the water discharge form detecting means, and a fixed water discharge stored in the storage means Control means for controlling the water discharge condition forming means to discharge water based on the conditions and the operation of the operation unit, and the control means starts water discharge in a water discharge form in which a fixed water discharge condition is defined. If Water discharge is started under a fixed water discharge condition corresponding to the water discharge form, and when water discharge is started in a water discharge form for which the fixed water discharge condition is not specified, water discharge is started with the water discharge condition at the previous water stoppage. A faucet device characterized in that

  In this invention comprised in this way, which water discharge form is selected from the several water discharge forms is detected by the water discharge form detection means. The memory | storage means has memorize | stored the fixed water discharge conditions corresponding to some water discharge forms among several water discharge forms. Moreover, the water discharge condition in each water discharge form is changed by the single operation part. The water discharge condition forming means forms water discharge according to the water discharge conditions set by the operation unit. When water discharge is started in a water discharge form in which a fixed water discharge condition is specified, the control means starts water discharge in a fixed water discharge condition corresponding to the water discharge form, and the fixed water discharge condition is specified. When water discharge is started in the form of water discharge that has not been performed, water discharge is started under the water discharge conditions at the time of the previous water stop.

  According to the present invention configured as described above, since water discharge is started under a water discharge condition that is fixed with respect to some of the water discharge forms, a water discharge form that rarely adjusts the water discharge condition. Can start water discharge under a fixed water discharge condition, and can resume water discharge under the previously adjusted water discharge condition for a water discharge form premised on adjusting and using the water discharge condition.

  In the present invention, preferably, when the predetermined time has not elapsed since the last water stop, the control means also when water discharge is started in a water discharge form in which the fixed water discharge condition is defined. The water discharge is started under the water discharge conditions at the time of the previous water stop.

  According to the present invention configured as described above, when water discharge is resumed within a predetermined time after the previous water stop, water discharge is started under the water discharge condition at the previous water stop, so the water discharge condition is adjusted. Even with a rare water discharge mode, water discharge can be resumed under the water discharge conditions in line with the intention of the user who has adjusted the water discharge conditions.

  In the present invention, preferably, the water discharge condition is the water discharge temperature, and the control means defines the fixed water discharge temperature when the fixed water discharge temperature, which is the fixed water discharge condition, is higher than the water discharge temperature at the previous water stoppage. Even when water discharge is started in the form of water discharge being performed, water discharge is started at the water discharge temperature at the time of the previous water stop.

  According to the present invention configured as described above, when the fixed water discharge temperature is higher than the water discharge temperature at the previous water stop, the water discharge condition is not automatically changed, so that the water is discharged at a high temperature not intended by the user. It is possible to suppress wasteful energy consumption. Moreover, since water is not discharged at a high temperature that is not intended by the user, it is possible to prevent a problem that high-temperature water discharge is unexpectedly started.

  In the present invention, preferably, the water discharge condition is a water discharge flow rate, and the control means defines the fixed water discharge flow rate when the fixed water discharge flow rate, which is the fixed water discharge condition, is larger than the water discharge flow rate at the previous water stoppage. Even when water discharge is started in the form of water discharge being performed, water discharge is started at the water discharge flow rate at the time of the previous water stop.

  According to the present invention configured as described above, when the fixed water discharge flow rate is larger than the water discharge flow rate at the time of the previous water stop, the water discharge condition is not automatically changed. This prevents wasteful consumption of water. In addition, since water is not discharged at a large flow rate that is not intended by the user, it is possible to prevent water splashing or the like due to unexpectedly starting water discharge at a large flow rate.

  In the present invention, preferably, the water discharge portion is configured to be drawable from the faucet body, and the fixed water discharge condition is defined corresponding to the water discharge form from which the water discharge portion is drawn.

  According to the present invention configured as described above, in a state where the water discharge portion is pulled out, it is possible to prevent a large flow rate from being discharged unexpectedly or high temperature water discharge to be performed. It is possible to prevent the water from being discharged.

  In the present invention, preferably, the water discharge portion is configured to be rotatable with respect to the faucet body, and the fixed water discharge condition is defined corresponding to the water discharge form in which the water discharge port of the water discharge portion is directed upward. ing.

  According to the present invention configured as described above, in a state where the water discharge port is directed upward, it is possible to prevent a large flow rate from being unexpectedly discharged or a high temperature water discharge to be performed. Moreover, it can prevent being exposed to high temperature water discharge.

  In the present invention, preferably, the water discharge unit is a shower head and a curan, and includes water discharge from the shower head and water discharge from the curan as a water discharge form, and the fixed water discharge condition corresponds to water discharge from the shower head. It is prescribed.

  According to the present invention configured as described above, in the shower water discharge, it is possible to prevent a large flow rate from being discharged unexpectedly or a high temperature water discharge to be performed. It is possible to prevent the water from being discharged.

  According to the faucet device of the present invention, it is possible to improve the usability in various usage scenes and water discharge modes.

Next, embodiments of the present invention will be described with reference to the accompanying drawings.
First, a faucet device according to a first embodiment of the present invention will be described with reference to FIGS. 1 and 2 are perspective views showing the faucet device according to the present embodiment. FIG. 1 shows a state in which the water discharge head is mounted on the water faucet body, and FIG. 2 shows the water discharge head pulled out from the water faucet body. Indicates the state. FIG. 3 is a block diagram showing the configuration of the faucet device according to the present embodiment. Further, FIG. 4 is a time chart showing the operation of the faucet device of the present embodiment, and FIGS. 5 to 8 are control flowcharts showing the operation of the faucet device.

  As shown in FIGS. 1 and 2, the faucet device 1 according to the first embodiment of the present invention includes a water discharge head 2 which is a water discharge portion provided with a water discharge port 2 a, and a water faucet body attached to a wash bowl 4. 6, a flow adjustment operation unit 8 and a temperature adjustment operation unit 10 which are operation units arranged in the wash bowl 4, and a faucet device function unit 12 (FIG. 3) arranged below the wash bowl 4. Have.

  In the faucet device 1 according to the present embodiment, by operating the flow adjustment operation unit 8 and the temperature adjustment operation unit 10, an electrical signal is sent to the faucet device function unit 12, and each function can be executed. That is, the faucet device 1 can switch the water discharge and water stop from the water discharge port 2a of the water discharge head 2 by pressing the flow adjustment operation unit 8, and the flow adjustment operation unit 8 is rotated. Thus, the water discharge flow rate can be adjusted. Further, the faucet device 1 is configured to be able to adjust the water discharge temperature by rotating the temperature adjustment operation unit 10.

  An LED (not shown) as a display means is built in the flow control operation unit 8 and the temperature control operation unit 10, and generally fan-shaped light irradiation is performed around each operation unit by irradiation light from the LED. Portions 8a and 10a are formed. The central angle of the fan shape of each light irradiation unit is configured to increase according to the set flow rate and set temperature, and the user can visually set the set flow rate and set temperature according to the shape of each light irradiation unit. It can be recognized.

  Moreover, as shown in FIG. 2, the water discharge head 2 is comprised so that it can remove and pull out from the faucet main body 6, and can change the position of the water discharge port 2a. Thereby, the water discharge head 2 can be used like the shower head connected to the shower hose 2b. Further, the faucet body 6 is provided with a detachable sensor 14 which is a water discharge form detecting means at a connection portion with the water discharge head 2. By this detachable sensor 14, it is detected whether the water discharge mode is switched, that is, whether the water discharge head 2 is attached to the faucet body 6 or is used after being removed from the faucet body 6. can do. In the present embodiment, a hall element is used as the attachment / detachment sensor 14. This Hall element detects the magnetism of a magnet (not shown) attached to the water discharge head 2 to detect which water discharge form is selected from among a plurality of water discharge forms, that is, the attachment / detachment of the water discharge head 2. be able to.

  Furthermore, since the water discharge flow rate which is one of the water discharge conditions of the faucet device 1 is adjusted by the flow adjustment operation unit 8 regardless of whether the water discharge head 2 is attached or removed, the flow adjustment operation unit 8 determines the water discharge conditions in each discharge type. It is a single operation unit to be changed. Moreover, since the water discharge temperature which is another water discharge condition of the faucet device 1 is adjusted by the temperature adjustment operation unit 10 regardless of whether the water discharge head 2 is attached or removed, the temperature adjustment operation unit 10 determines the water discharge condition in each water discharge type. It is a single operation unit to be changed.

  As shown in FIG. 3, the faucet device function unit 12 includes a temperature control valve 16 connected to the hot water supply pipe 16 a and the water supply pipe 16 b, a flow rate adjustment valve 18 connected to the downstream side of the temperature control valve 16, The electromagnetic valve 20 is connected to the downstream side of the flow rate adjusting valve 18, and the temperature control valve 16, the flow rate adjusting valve 18, and the controller 22 that is a control means for controlling the electromagnetic valve 20. A flow rate adjusting valve 18 is connected to the outlet line of the temperature control valve 16, an electromagnetic valve 20 is connected to the outlet line of the flow rate adjusting valve 18, and a shower hose 2 b (FIG. 2) is connected to the outlet line of the electromagnetic valve 20. ) Is connected to the water discharge head 2. With this configuration, when the electromagnetic valve 20 is opened, the hot water flowing out of the temperature control valve 16 flows into the electromagnetic valve 20 through the flow rate adjustment valve 18 and is discharged from the water discharge port 2 a of the water discharge head 2.

  In the present embodiment, the water discharge flow rate and water discharge temperature, which are water discharge conditions, are adjusted by the flow rate adjustment valve 18 and the temperature adjustment valve 16, respectively. It functions as water discharge condition forming means for forming water discharge according to conditions.

  The temperature control valve 16 is configured to mix and discharge the hot water flowing in from the hot water supply pipe 16a and the water flowing in from the water supply pipe 16b in accordance with the temperature setting. In the present embodiment, a thermo valve that adjusts the temperature by driving the main valve body by the biasing force of the shape memory alloy spring and the bias spring is used as the temperature control valve 16. Further, the set temperature of hot water discharged from the temperature control valve 16 can be changed by driving a motor 16 c connected to the temperature control valve 16.

  Based on the electrical signals input from the flow adjustment operation unit 8 and the temperature adjustment operation unit 10, the controller 22 sends signals to the electromagnetic valve 20, the flow rate adjustment valve 18, and the temperature adjustment valve 16 to control them. It is configured. Specifically, the controller 22 includes a memory 22a that is a storage unit that stores an input interface for inputting a signal from each operation unit, a control program, a set temperature and a set flow rate in each water discharge form that is a stored water discharge condition, A microprocessor for executing the program, an electromagnetic valve, an output interface for driving the temperature control valve, and the like (only the memory 22a is shown). Details of the control by the controller 22 will be described later.

Next, with reference to FIG. 4 thru | or FIG. 8, the effect | action of the faucet device 1 by 1st Embodiment of this invention is demonstrated. In addition, in the faucet device 1 of this embodiment, the fixed water discharge temperature which is the fixed water discharge conditions is prescribed | regulated with respect to the state which pulled out the water discharge head 2 which is one of two water discharge forms. For this form of water discharge, water discharge is started at a predetermined fixed water discharge temperature. Further, as described below, in a predetermined case, automatic change of the water discharge temperature to the fixed water discharge temperature is prohibited.
FIG. 4 is a time chart showing the water discharge flow rate from the water discharge head 2, the water discharge temperature, the attachment / detachment of the water discharge head 2 for switching the water discharge form, and the accumulated time of the post-water stop elapsed time timer in order from the top. FIG. 5 is a flowchart of control by the controller 22 built in the faucet device function unit 12. 6 to 8 are flowcharts of subroutines called from the flowchart of FIG.

First, when the power is turned on in step S1 of FIG. 5, the electromagnetic valve 20 is turned off, that is, closed in step S2. Further, in step S3, initial values of variables and flags are set. That is, the value of the water discharge mode flag Fpm is set to 0 indicating the water stop state, and the value of the water discharge form flag Ftk is set to 0 indicating the mounting state of the water discharge head 2. Furthermore, the water discharge flow rate target value Qm is set to 3 L / min. Further, the water discharge temperature target value tm and the fixed water discharge temperature tM (1) when the water discharge head 2 is pulled out are set to 38 ° C., respectively. Furthermore, the water discharge flow rate upper limit QL (0) when the water discharge head 2 is attached is set to 10 L / min, and the water discharge flow rate upper limit QL (1) when the water discharge head 2 is pulled out is set to 6 L / min. Further, the water discharge temperature upper limit tL (0) when the water discharge head 2 is attached is set to 60 ° C., and the water discharge temperature upper limit tL (1) when the water discharge head 2 is pulled out is set to 40 ° C. Further, the value of the elapsed time timer Ts after water stop is reset to zero.
In addition, the fixed water discharge temperature in this embodiment is the fixed water discharge conditions corresponding to the water discharge form of the drawn-out state.

  In subsequent steps S4 and after, after the power supply of the faucet device 1 is turned on, in the water stop state until the flow control operation unit 8 is pressed and water discharge is started, the processes of steps S4 → S5 → S11 → S4 in FIG. Is repeated.

  On the other hand, when the flow adjustment operation unit 8 is pressed in the water stoppage state, the process in the controller 22 proceeds from step S11 to step S12, and the process of steps S12 → S13 → S14 is executed to enter the water discharge state. Thereafter, the process of steps S4 → S5 → S6 → S7 → S4 is repeated until the flow control unit 8 is pressed in the water discharge state.

  When the flow adjustment operation unit 8 is pressed in the water discharge state, the process in the controller 22 shifts from step S7 to step S8, the process of steps S8 → S9 → S10 is executed, and the water stop state is entered again.

  In step S4 of FIG. 5, the water discharge target setting subroutine shown in FIG. 6 is executed, in step S12, the water discharge start condition setting subroutine shown in FIG. 7 is executed, and in step S6, the flow rate temperature adjustment shown in FIG. A subroutine is executed.

First, the process in the water discharge target setting subroutine shown in FIG. 6 will be described.
In step S101, the selected water discharge form is determined. That is, the controller 22 determines whether or not the water discharge head 2 is attached to the faucet body 6 based on the signal sent from the attachment / detachment sensor 14. When the water discharge head 2 is attached to the faucet body 6, the process proceeds to step S103, the value of the water discharge form flag Ftk is set to 0 indicating the attachment state, and the water discharge head 2 is pulled out from the water faucet body 6. In this case, the process proceeds to step S102, and the value of the water discharge form flag Ftk is set to 1 representing the drawing state.

  Since the water discharge head 2 is attached to the faucet body 6 at time t0 in FIG. 4, the value of the water discharge form flag Ftk is set to 0 representing the attachment state in step S103.

  Next, in step S104, the value of the water discharge flow rate target value Qm is compared with the value of the water discharge flow rate upper limit QL (Ftk) in the current water discharge mode. That is, when the water discharge head 2 is attached to the faucet body 6, the water discharge flow rate target value Qm is compared with the water discharge flow rate upper limit value QL (0), and when the water discharge head 2 is drawn out, the water discharge The flow rate target value Qm and the discharged water flow rate upper limit value QL (1) are compared. When the water discharge flow rate target value Qm exceeds the water discharge flow rate upper limit value QL (Ftk), the process proceeds to step S105, and the value of the water discharge flow rate target value Qm is changed to the water discharge flow rate upper limit value QL (Ftk). If the water discharge flow rate target value Qm is less than or equal to the water discharge flow rate upper limit value QL (Ftk), the process proceeds directly to step S106.

  In the present embodiment, the water discharge flow rate upper limit value QL (0) in the mounted state of the water discharge head 2 is set to 10 L / min, and the water discharge flow rate upper limit value QL (1) in the pulled out state is set to 6 L / min. Has been. This is because when the water discharge head 2 is attached, a large flow rate may be required, such as when hot water is accumulated in the wash bowl 4, and when the water discharge is discharged at a very high flow rate, problems such as water splashing may occur. This is because it occurs. In this way, by setting the upper limit value of the water discharge flow rate according to the water discharge form, it is possible to discharge a sufficient flow rate in a scene where a large flow rate is required while preventing an excessive water discharge flow rate.

  At time t0 in FIG. 4, the water discharge flow rate target value Qm is smaller than the water discharge flow rate upper limit value QL (0), and thus the flow of the water discharge flow rate target value Qm proceeds without changing.

  In step S106, the value of the water discharge temperature target value tm is compared with the value of the water discharge temperature upper limit tL (Ftk) in the current water discharge form. That is, when the water discharge head 2 is attached to the faucet body 6, the water discharge temperature target value tm and the water discharge temperature upper limit value tL (0) are compared, and when the water discharge head 2 is drawn out, the water discharge The temperature target value tm and the water discharge temperature upper limit value tL (1) are compared. When the water discharge temperature target value tm exceeds the water discharge temperature upper limit value tL (Ftk), the process proceeds to step S107, and the value of the water discharge temperature target value tm is changed to the water discharge temperature upper limit value tL (Ftk). If the water discharge temperature target value tm is less than or equal to the water discharge temperature upper limit tL (Ftk), the process proceeds directly to step S108.

  In this embodiment, the water discharge temperature upper limit tL (0) when the water discharge head 2 is attached is set to 60 ° C., and the water discharge temperature upper limit tL (1) when the water discharge head 2 is pulled out is set to 40 ° C. Has been. This is because hot hot water may be required when the water discharge head 2 is attached, and in the pulled out state, hot water is accidentally used for washing hair. is there. In this way, by setting the upper limit value of the water discharge temperature according to the form of water discharge, while preventing the occurrence of problems due to misuse, hot water with a sufficiently high temperature is required in situations where hot water is required. Water can be discharged.

  Since the water discharge temperature target value tm is lower than the water discharge temperature upper limit value tL (0) at time t0 in FIG. 4, the water discharge temperature target value tm proceeds to step S108 without being changed.

  In step S108, the controller 22 sends the water discharge flow rate target value Qm and the water discharge temperature target value tm to the display means, and the display means displays these values. Next, in step S109, the value of the water stoppage mode flag Fpm is determined. If the water stoppage mode flag Fpm = 1, i.e., if the water is being discharged, the process proceeds to step S110. If the water discharge mode flag Fpm = 0, i.e., if the water is being stopped, the processing of the subroutine shown in FIG. finish. In step S110, the controller 22 sends a signal to the flow rate adjustment valve 18 to control the flow rate adjustment valve 18 so that the discharged water flow rate becomes the discharged water flow rate target value Qm. Further, in step S111, the controller 22 sends a signal to the temperature control valve 16, controls the temperature control valve 16 so that the water discharge temperature becomes the water discharge temperature target value tm, and ends the subroutine processing shown in FIG. .

  When the flow adjustment operation unit 8 is pressed at time t0 in the time chart shown in FIG. 4, as described above, the processing in the controller 22 proceeds from step S11 to step S12 in FIG. 5, and in step S12. The water discharge start condition setting subroutine shown in FIG. 7 is called.

  First, in step S201 in FIG. 7, the value of the water discharge form flag Ftk is determined. When Ftk = 1, that is, when the water discharge head 2 is pulled out from the faucet body 6, the process proceeds to step S202. When Ftk = 0, that is, when the water discharge head 2 is attached to the faucet body 6, FIG. The subroutine processing shown in FIG. Thus, in this embodiment, in the pulling-out state of the water discharge head 2 which is one of the two water discharge forms, a change is made to the fixed water discharge temperature which is the water discharge condition stored and fixed in the memory 22. However, in the mounted state of the water discharge head 2, the conventional water discharge condition is maintained.

  Next, in step S202, the value of the fixed water discharge temperature tM (1) and the water discharge temperature target value tm are compared. When the fixed water discharge temperature tM (1) is lower than the water discharge temperature target value tm, the process proceeds to step S203, and when it is higher, the process of the subroutine shown in FIG. Thus, in this embodiment, when the fixed water discharge temperature is lower than the water discharge temperature target value tm, which is the conventional water discharge temperature, the water discharge temperature target value tm is changed to the fixed water discharge temperature. When the water discharge temperature rises due to the above, the conventional water discharge condition is maintained.

Next, in step S203, it is determined whether or not the integrated value of the post-water stop elapsed time timer Ts has passed a predetermined post-water stop time TS. When the post-water stoppage time TS has elapsed, the process proceeds to step S204, and when it has not elapsed, the processing of the subroutine shown in FIG. As described above, in the present embodiment, the water discharge temperature target value tm is not changed to the fixed water discharge temperature until the predetermined post-water stop time TS has elapsed after the previous water stop, and the previous water discharge conditions are the same. Maintained. In this embodiment, the post-water stoppage time TS is about 60 seconds.
Next, in step S204, the water discharge temperature target value tm is changed to the fixed water discharge temperature tM (1). Thereby, the water discharge temperature is automatically changed to a specified value.

  When the process of the subroutine of FIG. 7 called from step S12 of FIG. 5 is completed, the process proceeds to step S13 of FIG. In step S13, the value of the water discharge mode flag Fpm is set to a value 1 representing the water discharge state. Furthermore, in step S14, the controller 22 sends a signal to the electromagnetic valve 20 to open it. Thereby, water discharge is started at time t0 in FIG.

Next, the process in the controller 22 returns to step S4, and the subroutine of FIG. 6 is executed.
At time t0 in FIG. 4, since the value of the water stoppage mode flag Fpm is set to 1 in step S13, the processes in steps S110 and S111 in FIG. 6 are performed. In step S110, the controller 22 sends a signal of the water discharge flow rate target value Qm initialized in step S3 of FIG. 5, and controls the flow rate adjustment valve 18 so that water discharge is performed at this flow rate. Thereby, after time t0, the discharged water flow rate is adjusted to 3 L / min. Further, in step S111, the controller 22 sends a signal of the water discharge temperature target value tm set in step S204 of FIG. 7, and controls the temperature control valve 16 so that water discharge is performed at this temperature. In the subroutine of FIG. 7, when step S204 is not executed, the previous water discharge temperature target value tm is maintained as it is.

Next, the processing by the controller 22 proceeds to step S5 in FIG.
In step S5, it is determined whether or not the water discharge state is present, that is, the value of the water discharge mode flag Fpm. When the water discharge mode flag Fpm = 1, the process proceeds to step S6. When the water discharge mode flag Fpm = 0, the process proceeds to step S11.

  If nothing is operated after the faucet device 1 is turned on, it is in a water-stopped state, and since the water discharge mode flag Fpm = 0, the process proceeds to step S11, and thereafter, steps S11 → S4 → S5 → The process of S11 is repeated.

  On the other hand, at time t0 in FIG. 4, the spouting water mode flag Fpm has been changed to 1 in step S13, so the processing by the controller 22 proceeds from step S5 to step S6.

Next, in step S6, a subroutine shown in FIG. 8 is called.
First, in step S301 of FIG. 8, it is determined whether or not the flow adjustment operation unit 8 has been operated. If it is operated, the process proceeds to step S302. If it is not operated, the process proceeds to step S304. In step S302, the operation angle Q0a of the flow adjustment operation unit 8 is acquired. Next, in step S <b> 303, the water discharge flow rate target value Qm is changed according to the operation angle Q <b> 0 a of the flow adjustment operation unit 8. That is, when the flow adjustment operation unit 8 is rotated clockwise, the water discharge flow rate target value Qm is increased, and when it is rotated counterclockwise, the water discharge flow rate target value Qm is decreased. The changed water discharge flow rate target value Qm is reflected in the water discharge flow rate when step S110 of FIG. 6 is executed next.

  Next, in step S304, it is determined whether or not the temperature adjustment operation unit 10 has been operated. If it has been operated, the process proceeds to step S305. If it has not been operated, the process of the subroutine shown in FIG. 8 ends. In step S305, the operation angle t0a of the temperature adjustment operation unit 10 is acquired. Next, in step S306, the water discharge flow rate target value tm is changed according to the operation angle t0a of the temperature adjustment operation unit 10, and the processing of the subroutine shown in FIG. Note that the water discharge temperature target value tm is increased when the temperature adjustment operation unit 10 is rotated clockwise, and the water discharge temperature target value tm is decreased when the temperature adjustment operation unit 10 is rotated counterclockwise. The changed water discharge temperature target value tm is reflected in the water discharge temperature when step S111 in FIG. 6 is executed next.

  After the time t0 in FIG. 4, the flags and variables are not changed in the subroutine shown in FIG. 8 until the flow adjustment operation unit 8 or the temperature adjustment operation unit 10 is rotated.

  After the process of step S6 of FIG. 5 is executed, the process by the controller 22 proceeds to step S7. After time t0, the process of steps S4 → S5 → S6 → S7 → S4 is repeated until the flow control unit 8 is pressed. In addition, while the processes in these steps are repeated, the flags and variables are not changed until some operation by the user is detected.

  Next, when the user pulls out the water discharge head 2 from the faucet body 6 at time t1 in FIG. 4, the attachment / detachment sensor 14 detects this and sends a detection signal to the controller 22. This detection signal is processed in step S101 of FIG. 6, and the value of the water discharge form flag Ftk is changed to 1 in step S102.

  The change in the value of the water discharge form flag Ftk does not affect the water discharge temperature target value tm and the water discharge flow rate target value Qm, and the water discharge is continued under the same water discharge conditions as before the change of the water discharge form. The process of S4 → S5 → S6 → S7 → S4 is repeated.

  Next, when the user starts the rotation operation of the flow adjustment operation unit 8 at time t2 in FIG. 4, this operation is processed by a subroutine shown in FIG. 8 called in step S6 in FIG.

  First, in step S301 of FIG. 8, it is determined that the flow adjustment operation unit 8 has been rotated, and the process proceeds to step S302. In step S302, the operation angle Q0a of the rotation operation is taken into the controller 22. Next, in step S303, the value of the water discharge flow rate target value Qm is changed according to the operation angle Q0a. At time t2 in FIG. 4, the flow adjustment operation unit 8 is rotated counterclockwise, so the operation angle Q0a is negative, and the water discharge flow rate target value Qm is decreased.

  Next, in step S304, it is determined that the temperature adjustment operation unit 10 has not been rotated, and the processing of the subroutine of FIG. 8 ends. This change in the water discharge flow rate target value Qm is reflected in the water discharge flow rate when step S110 of FIG. 6 is executed next. A similar process is repeated until time t3 when the rotation operation of the flow adjustment operation unit 8 by the user ends, and the discharged water flow rate is reduced according to the rotation operation of the user. After the rotation operation of the flow adjustment operation unit 8 by the user is completed, the processes of steps S4 → S5 → S6 → S7 → S4 are repeated without changing each flag and variable.

Further, when the user starts the rotation operation of the temperature adjustment operation unit 10 at time t4 in FIG. 4, this operation is similarly processed by the subroutine shown in FIG. 8 called in step S6 in FIG.
First, in step S301, it is determined that the flow adjustment operation unit 8 has not been rotated, and the process proceeds to step S304.

  Next, in step S304, it is determined that the temperature adjustment operation unit 10 has been rotated, and the process proceeds to step S305. In step S <b> 305, the operation angle t <b> 0 a of the rotation operation is taken into the controller 22. Next, in step S306, the value of the water discharge temperature target value tm is changed according to the operation angle t0a. At time t4 in FIG. 4, since the temperature adjustment operation unit 10 is rotated clockwise, the operation angle t0a is positive, and the water discharge temperature target value tm is increased.

  This change in the water discharge temperature target value tm is reflected in the water discharge temperature when step S111 in FIG. 6 is executed next. The same process is repeated until time t5 when the rotation operation of the temperature adjustment operation unit 10 by the user ends, and the water discharge temperature is raised according to the rotation operation of the user. In the example of FIG. 4, the water discharge temperature target value tm is raised to a temperature higher than the fixed water discharge temperature tM (1) at time t5. After the rotation operation of the temperature adjustment operation unit 10 by the user is completed, the processes of steps S4 → S5 → S6 → S7 → S4 are repeated without changing each flag and variable.

  Next, when the user presses the flow adjustment operation unit 8 at time t6 in FIG. 4, the processing in the controller 22 proceeds from step S7 to step S8 in FIG. In step S8, the value of the water stoppage mode flag Fpm is set to zero. Further, in step S9, integration of a post-water stop elapsed time timer Ts (not shown) built in the controller 22 is started. Next, in step S10, the controller 22 sends a signal to the solenoid valve 20 to close it, thereby setting the water stop state. After the process of step S10, the process in the controller 22 returns to step S4.

After the water stop operation by the user, the processing of steps S4 → S5 → S11 → S4 is repeated without changing each flag and variable. On the other hand, the elapsed time timer Ts after the water stop continues to accumulate the elapsed time after the water stop.
After the accumulated time of the post-water stoppage time timer Ts exceeds the post-water stop time TS at time t7 in FIG. 4, when the user presses the flow control unit 8 at time t8, the processing in the controller 22 is The process proceeds from step S11 in FIG. 5 to step S12. In step S12, the subroutine shown in FIG. 7 is called.

  After it is determined in step S201 of FIG. 7 that the water discharge form flag Ftk = 1 (the state in which the water discharge head 2 is pulled out), it is determined in step S202 that the water discharge temperature target value tm is higher than the fixed water discharge temperature tM (1). Is done. Further, in step S203, it is determined that the post-water stop time TS has elapsed after the water stop at time t6, and step S204 is executed. In step S204, the value of the water discharge temperature target value tm is changed to the fixed water discharge temperature tM (1) = 38 ° C.

  After the subroutine shown in FIG. 7 is executed, the process in the controller 22 proceeds to step S13 in FIG. 5, the value of the water stoppage mode flag Fpm is set to 1, and the solenoid valve 20 is opened in step S14. It becomes a water discharge state.

  Next, the process in the controller 22 returns to step S4, and the subroutine of FIG. 6 is executed. In step S111 of FIG. 6, the controller 22 sends a signal to the temperature control valve 16 to reflect the previously changed water discharge temperature target value tm in the water discharge temperature. Thereby, the water discharge temperature is automatically changed to a predetermined fixed water discharge temperature at the start of water discharge at time t8. Since the water discharge flow rate target value Qm has not been changed, the flow rate at the time of the previous water stop (time t6) is maintained, and water discharge is started at this flow rate. Thereafter, the processing of steps S4 → S5 → S6 → S7 → S4 is repeated without changing each flag and variable.

  Next, the user operates the temperature adjustment operation unit 10 from time t9 to t10 to lower the water discharge temperature to a temperature lower than the fixed water discharge temperature tM (1), and presses the flow adjustment operation unit 8 at time t10. Operate to stop water. As a result, the processing of steps S4 → S5 → S11 → S4 is repeated without changing each flag and variable.

  After the accumulated time of the post-water stoppage time timer Ts exceeds the post-water stop time TS at time t11, when the user presses the flow control unit 8 at time t12, the water discharge state is entered. The processing in the controller 22 proceeds from step S11 in FIG. 5 to step S12, and the subroutine shown in FIG. 7 is executed.

After it is determined in step S201 of FIG. 7 that the water discharge form flag Ftk = 1 (state in which the water discharge head 2 is pulled out), in step S202, the water discharge temperature target value tm is lower than the fixed water discharge temperature tM (1). To be judged. Thereby, the processing of the subroutine shown in FIG. 7 ends without executing step S204. As described above, in the present embodiment, even in the water discharge mode in which the fixed water discharge temperature is defined, if the water discharge temperature rises when the water discharge condition is automatically changed, the automatic change of the water discharge condition is prohibited. The previous water discharge condition (water discharge temperature at time t10) is maintained.
Thereafter, the processing of steps S4 → S5 → S6 → S7 → S4 is repeated without changing each flag and variable.

  Next, at times t13 to t14, the user operates the flow adjustment operation unit 8 and the temperature adjustment operation unit 10 to increase the water discharge flow rate and raise the water discharge temperature to a temperature higher than the fixed water discharge temperature tM (1). Let Further, the user presses the flow adjustment operation unit 8 at time t14 to set the water stop state. As a result, the processing of steps S4 → S5 → S11 → S4 is repeated without changing each flag and variable. On the other hand, the elapsed time after water stop timer Ts starts to accumulate the elapsed time after the water stop.

  Next, when the user presses the flow control operating unit 8 at time t15 before the post-water stoppage time TS elapses, the water discharge state is entered. The processing in the controller 22 proceeds from step S11 in FIG. 5 to step S12, and the subroutine shown in FIG. 7 is executed.

  After it is determined in step S201 of FIG. 7 that the water discharge form flag Ftk = 1 (state in which the water discharge head 2 is pulled out), in step S202, the water discharge temperature target value tm is higher than the fixed water discharge temperature tM (1). Determination is made, and the process proceeds to step S203. In step S203, it is determined that the accumulated time of the post-water stop elapsed time timer Ts has not passed the post-water stop time TS, and the subroutine processing shown in FIG. 7 ends.

Thereby, the processing of the subroutine shown in FIG. 7 ends without executing step S204. Thus, in this embodiment, even if it is the water discharge form with which fixed water discharge temperature is prescribed | regulated, when predetermined | prescribed water stop time TS has not passed after the last water stop (time t14). The automatic change of the water discharge condition is prohibited, and the previous water discharge condition (water discharge temperature at time t14) is maintained.
Thereafter, the processing of steps S4 → S5 → S6 → S7 → S4 is repeated without changing each flag and variable.

  Next, when the user attaches the water discharge head 2 to the faucet body 6 at time t <b> 16, the attachment / detachment sensor 14 detects this and sends a detection signal to the controller 22. This detection signal is processed in step S101 of FIG. 6, and the value of the water discharge form flag Ftk is changed to 0 in step S103. Thereafter, the processing of steps S4 → S5 → S6 → S7 → S4 is repeated without changing each flag and variable.

  Further, the user presses the flow adjustment operation unit 8 at time t17 to set the water stop state. As a result, the processing of steps S4 → S5 → S11 → S4 is repeated without changing each flag and variable.

  After the accumulated time of the post-water stoppage time timer Ts exceeds the post-water stop time TS at time t18, when the user presses the flow adjustment operation unit 8 at time t19, the water discharge state is entered. The processing in the controller 22 proceeds from step S11 in FIG. 5 to step S12, and the subroutine shown in FIG. 7 is executed.

  In step S201 of FIG. 7, since it is determined that the water discharge form flag Ftk = 0 (the state in which the water discharge head 2 is attached), the processing of the subroutine shown in FIG. 7 ends without executing step S204. Thus, in this embodiment, when it is a water discharge form where the fixed water discharge temperature is not defined, the water discharge condition is not automatically changed, and the previous water discharge condition (water discharge temperature at time t17) is maintained. .

  According to the faucet device of a 1st embodiment of the present invention, about the state which pulled out the water discharge head of two water discharge forms, since water discharge is started at the fixed water discharge temperature, it is possible to adjust the water discharge temperature. As for the condition of the water discharge head that is not so much, the water discharge head can be started at an appropriate temperature at all times, and the condition of the water discharge head mounted on the assumption that the water discharge temperature is adjusted according to various applications is the last time. Water discharge can be resumed at the adjusted temperature.

  Further, according to the faucet device of the present embodiment, when water discharge is resumed within a predetermined time after the previous water stop, water discharge starts at the water discharge temperature at the time of the previous water stop. It is also assumed that the user can resume the water discharge at the water discharge temperature adjusted by the user even after rarely adjusting the water discharge head, and that the user has changed after a predetermined time has passed since the water stopped. In such a case, water discharge can be started at an appropriate temperature.

  Furthermore, according to the faucet device of the present embodiment, when the fixed water discharge temperature is higher than the water discharge temperature at the previous water stop, the water discharge conditions are not automatically changed, so the water discharge is performed at a high temperature not intended by the user. It is possible to suppress wasteful energy consumption. Moreover, since water is not discharged at a high temperature that is not intended by the user, it is possible to prevent a problem that high-temperature water discharge is unexpectedly started.

  In addition, according to the faucet device of the present embodiment, it is possible to prevent the hot water discharge from being unexpectedly performed in the state in which the water discharge portion is pulled out, so that it is possible to prevent the hot water discharge from being bathed. it can.

  In the faucet device according to the first embodiment of the present invention described above, the fixed water discharge temperature is defined as the water discharge temperature in the water discharge form in which the water discharge head is pulled out, but as a modification, instead of the fixed water discharge temperature, or In addition to the fixed water discharge temperature, the fixed water discharge flow rate can be defined as the water discharge flow rate.

  FIG. 9 shows a flowchart of a subroutine used in this modification. The subroutine shown in FIG. 9 is a subroutine called in step S12 of the flowchart shown in FIG. 5 instead of the subroutine shown in FIG. The faucet device according to the first modification can be realized by changing the processing in the controller 22 in this way.

Next, the operation of the faucet device according to the first modification of the embodiment of the present invention will be described.
First, in step S401 of FIG. 9, the value of the water discharge form flag Ftk is determined. When Ftk = 1, that is, when the water discharge head 2 is pulled out from the faucet body 6, the process proceeds to step S402. When Ftk = 0, that is, when the water discharge head 2 is attached to the faucet body 6, FIG. The subroutine shown in FIG.

  Next, in step S402, the value of the fixed water discharge flow rate QM (1) and the water discharge flow rate target value Qm are compared. When the fixed water discharge flow rate QM (1) is smaller than the water discharge flow rate target value Qm, the process proceeds to step S403, and when it is larger, the processing of the subroutine shown in FIG. Thus, in this modification, when the fixed water discharge flow rate is smaller than the water discharge flow rate target value Qm, which is the conventional water discharge flow rate, the water discharge flow rate target value Qm is changed to the fixed water discharge flow rate. When the water discharge flow rate increases due to the above, the conventional water discharge condition is maintained.

Next, in step S403, it is determined whether or not the integrated value of the post-water stop elapsed time timer Ts has passed a predetermined post-water stop time TS. If the post-water stoppage time TS has not elapsed, the process proceeds to step S404, and if it has elapsed, the subroutine processing shown in FIG. 9 is terminated.
Next, in step S404, the water discharge flow rate target value Qm is changed to the fixed water discharge flow rate QM (1). Thereby, the discharged water flow rate is automatically changed to a specified value.

According to the faucet device of the present modification, when the fixed water discharge flow rate is defined as the water discharge flow rate in the water discharge form in which the water discharge head is pulled out, and the predetermined water discharge time has elapsed, Be started.
According to the faucet device of the present modification, it is possible to prevent a large flow rate from being spouted unexpectedly in the state where the water discharge portion is pulled out, and thus water splash can be prevented.

  Furthermore, according to the faucet device of this modification, when the fixed water discharge flow rate is higher than the water discharge flow rate at the previous water stop, the water discharge flow rate is not automatically changed, so the flow rate is not intended by the user. Water is not discharged and wasteful consumption of water can be prevented. In addition, since water is not discharged at a large flow rate that is not intended by the user, it is possible to prevent water splashing or the like due to unexpectedly starting water discharge at a large flow rate.

  Next, a faucet device according to a second embodiment of the present invention will be described with reference to FIGS. The faucet device of the present embodiment is the same as the faucet device according to the first embodiment described above except that the water discharge head is a rotary type and the control in the controller. Therefore, only the points different from the first embodiment of the faucet device according to the present embodiment will be described here, and description of similar points will be omitted.

  10 and 11 are perspective views of a faucet device according to a second embodiment of the present invention. FIG. 12 is a time chart showing the operation of the faucet device according to the present embodiment. Moreover, FIG.13 and FIG.14 is a flowchart of control by the controller in the faucet device of this embodiment.

  As shown in FIGS. 10 and 11, the faucet device 100 according to the second embodiment of the present invention includes a water discharge head 102 which is a water discharge portion provided with a water discharge port 102 a and a water faucet body attached to the wash bowl 4. 106, a flow control operation unit 8 and a temperature control operation unit 10 which are operation units disposed in the wash bowl 4, and a faucet device function unit 12 disposed below the wash bowl 4. Further, the faucet body 106 has a built-in human body detection sensor 108, which can detect whether or not there is a user near the wash bowl 4. An infrared sensor or a microwave sensor can be used as the human body detection sensor.

  In the faucet device 100 according to the present embodiment, the water discharge head 102 provided at the tip of the water faucet body 106 is configured to be rotatable around a predetermined axis, and the water discharge port 102a shown in FIG. 10 is directed downward. The water outlet 102a can be moved between the water discharge form and the water discharge form with the water outlet 102a shown in FIG. 11 facing upward. In this way, the eyes can be easily washed by turning the water outlet 102a upward.

  In the faucet device 100 of the present embodiment, a fixed water discharge temperature, which is a fixed water discharge condition, is defined with respect to a state in which the water discharge port 102a which is one of the two water discharge forms is directed upward. For this form of water discharge, water discharge is started at a predetermined fixed water discharge temperature. Further, as described below, in a predetermined case, automatic change of the water discharge temperature to the fixed water discharge temperature is prohibited.

Next, with reference to FIG. 12 thru | or FIG. 14, control by the controller in the faucet device of this embodiment is demonstrated.
FIG. 12 is a time chart showing the water discharge temperature, the detection signal of the human body detection sensor, the value of the water discharge mode flag Fpm, the value of the human body detection flag Fs, and the value of the water discharge form flag Ftk in order from the top. FIG. 13 is a flowchart of control by the controller 22 built in the faucet device function unit 12. FIG. 14 is a flowchart of a subroutine called from the flowchart of FIG.

First, when the power is turned on in step S501 in FIG. 13, the electromagnetic valve 20 is turned off, that is, closed in step S502. Further, in step S503, initial values of variables and flags are set. That is, the value of the water discharge mode flag Fpm is set to 0 indicating the water stop state, the value of the water discharge form flag Ftk is set to 0 indicating the state where the water discharge port 102a is directed downward, and the value of the human body detection flag Fs is set to 0. Set each one. Furthermore, the water discharge flow rate target value Qm is set to 3 L / min. Moreover, the fixed water discharge temperature tM (1) in a state where the water discharge temperature target value tm and the water discharge port 102a are directed upward is set to 38 ° C., respectively. Further, the water discharge flow rate upper limit value QL (0) with the water discharge port 102a facing downward is set to 10 L / min, and the water discharge flow rate upper limit value QL (1) with the water discharge port 102a facing upward is set to 6 L / min. To do. In addition, the water discharge temperature upper limit tL (0) when the water discharge port 102a faces downward is set to 60 ° C., and the water discharge temperature upper limit tL (1) when the water discharge port 102a faces upward is set to 40 ° C. To do.
In addition, the fixed water discharge temperature in this embodiment is the fixed water discharge conditions corresponding to the water discharge form of the state which faced upwards.

  In subsequent steps S504 and after, after the power supply of the faucet device 1 is turned on, in the water stop state until the flow control operation unit 8 is pressed and water discharge is started, steps S504 → S505 → S514 → S515 → S516 in FIG. → The process of S504 is repeated.

On the other hand, when the flow adjustment operation unit 8 is pressed in the water stoppage state, the process in the controller 22 proceeds from step S516 to step S517, and the process of steps S517 → S518 → S519 is executed to enter the water discharge state. Thereafter, the process of steps S504 → S505 → S506 → S507 → S508 → S509 → S504 is repeated until the flow adjustment operation unit 8 is pressed in the water discharge state.
When the flow adjustment operation unit 8 is pressed in the water discharge state, the process in the controller 22 proceeds from step S509 to step S510, the processes of steps S510 → S511 → S512 → S513 are executed, and the water stop state is entered again.

  13, the water discharge target setting subroutine shown in FIG. 6 described in the first embodiment is executed. In step S517, the water discharge start condition setting subroutine shown in FIG. 14 is executed. In step S508, the water discharge start condition setting subroutine is executed. The flow rate temperature adjustment subroutine shown in FIG. 8 described in the first embodiment is executed.

  However, in this embodiment, in step S101 of FIG. 6, it is determined whether the water outlet 102a is directed upward or downward. When the water discharge port 102a is directed upward, the process proceeds to step S102, and the value of the water discharge form flag Ftk is set to 1, and when it is directed downward, the process proceeds to step S103 and the value of the water discharge form flag Ftk. Is set to zero.

First, at time t100 in FIG. 12, since the water outlet 102a is directed upward, in step S102, the value of the water discharge form flag Ftk is set to 1 representing the state directed upward.
Next, at time t101, the human body detection sensor 108 detects that the user has approached the wash bowl 4, and the signal from the human body detection sensor 108 changes to 1 indicating that the human body is being detected.

  Furthermore, when the flow adjustment operation unit 8 is pressed at time t102, as described above, the processing in the controller 22 shifts from step S516 in FIG. 13 to step S517, and in step S517, the process shown in FIG. The water discharge start condition setting subroutine is called.

  First, in step S601 of FIG. 14, the value of the water discharge form flag Ftk is determined. When Ftk = 1, that is, when the water outlet 102a is directed upward, the process proceeds to step S602. When Ftk = 0, that is, when the water outlet 102a is directed downward, the processing of the subroutine shown in FIG. Exit. In the present embodiment, in the state where the water discharge port 102a which is one of the two water discharge forms is directed upward, the change to the fixed water discharge temperature which is the water discharge condition stored in the memory 22 and fixed is performed. In the state where the water discharge port 102a is directed downward, the conventional water discharge condition is maintained.

  Next, in step S602, the value of the fixed water discharge temperature tM (1) and the water discharge temperature target value tm are compared. If the fixed water discharge temperature tM (1) is lower than the water discharge temperature target value tm, the process proceeds to step S603, and if it is higher, the process of the subroutine shown in FIG. Thus, in this embodiment, when the fixed water discharge temperature is lower than the water discharge temperature target value tm, which is the conventional water discharge temperature, the water discharge temperature target value tm is changed to the fixed water discharge temperature. When the water discharge temperature rises due to the above, the conventional water discharge condition is maintained.

  Next, in step S603, the value of the human body detection flag Fs is determined. If the human body detection flag Fs = 0, the process proceeds to step S604. If Fs = 1, the subroutine processing shown in FIG. Thus, in this embodiment, whether or not to change the water discharge temperature target value tm to the fixed water discharge temperature based on the presence or absence of human body detection and the value of the human body detection flag Fs whose value is changed under a predetermined condition. Is judged.

  Next, in step S604, the water discharge temperature target value tm is changed to the fixed water discharge temperature tM (1). Thereby, the water discharge temperature is automatically changed to a specified value. At time t102 in FIG. 12, since the human body detection flag Fs = 0, automatic change of water discharge is not performed.

  When the process of the subroutine of FIG. 14 called from step S517 of FIG. 13 is completed, the process proceeds to step S518 of FIG. In step S518, the value of the water discharge mode flag Fpm is set to a value 1 representing the water discharge state. Further, in step S519, the controller 22 sends a signal to the electromagnetic valve 20 to open it. Thereby, water discharge is started at time t102 in FIG.

  Next, the process in the controller 22 returns to step S504, the subroutine of FIG. 6 is executed, and the temperature control valve 16 is controlled to the water discharge temperature target value tm set in the subroutine of FIG.

Further, the processing by the controller 22 proceeds to step S505 in FIG.
In step S505, it is determined whether or not the water discharge state is present, that is, the value of the water discharge mode flag Fpm. At time t102 in FIG. 12, since the water stoppage mode flag Fpm = 1, the process proceeds to step S506.

  Next, in step S506, the value of the water discharge form flag Ftk is determined. When the water discharge form flag Ftk = 0, the process proceeds to step S507, and the value of the human body detection flag Fs is set to 1. At time t102 in FIG. 12, since the water discharge form flag Ftk = 1, the process proceeds to step S508 without executing step S507. Therefore, the value of the human body detection flag Fs is maintained as 0.

  Next, in step S508, the flow rate temperature adjustment subroutine shown in FIG. 8 is called. Since the processing in the subroutine shown in FIG. 8 is the same as that in the first embodiment, description thereof is omitted.

  After the process of step S508 in FIG. 13 is executed, the process by the controller 22 proceeds to step S509. After time t102, the process proceeds from step S504 to S509 until the flow adjustment operation unit 8 is pressed, and the process of returning to step S504 is repeated. In addition, while the process of these steps is repeated, when the water outlet 102a is directed downward by the user, the value of the water discharge form flag Ftk is changed to 0, and the value of the human body detection flag Fs is changed to 1.

  Next, when the user rotates the temperature adjustment operation unit 10 between times t103 and t104 in FIG. 12, the water discharge temperature is changed by the flow rate temperature adjustment subroutine shown in FIG.

  Next, when the user presses the flow adjustment operation unit 8 at time t105 in FIG. 12, the process in the controller 22 proceeds from step S509 to step S510 in FIG. In step S510, the value of the water discharge form flag Ftk is determined. If the water discharge form flag Ftk = 1, the process proceeds to step S511, and the value of the human body detection flag Fs is set to 1. If the water discharge form flag Ftk = 0, the process proceeds to step S512 without executing step S511. At time t105, since the water discharge mode flag Ftk = 1, the value of the human body detection flag Fs is changed to 1.

  In step S512, the value of the water stoppage mode flag Fpm is set to zero. Furthermore, in step S513, the controller 22 sends a signal to the electromagnetic valve 20 to close it, thereby setting the water stop state. After the process of step S513, the process in the controller 22 returns to step S504.

  After the water stop operation by the user at time t105 in FIG. 12, the process in the controller 22 proceeds from step S504 to S505 to S514. In step S514, it is determined whether the human body is being detected and whether the human body detection flag Fs = 1. After time t105, the human body is being detected and the state of the human body detection flag Fs = 1 is maintained, so the value of the human body detection flag Fs is maintained at 1.

  When the user presses the flow adjustment operation unit 8 at time t106, the process in the controller 22 proceeds from step S516 in FIG. 13 to step S517. In step S517, the subroutine shown in FIG. 14 is called.

  In step S601 of FIG. 14, after it is determined that the water discharge form flag Ftk = 1 (state in which the water discharge port 102a is directed upward), in step S602, the water discharge temperature target value tm is higher than the fixed water discharge temperature tM (1). Judged to be high. Further, in step S603, it is determined that the human body detection flag Fs = 1, and the processing of the subroutine of FIG. 14 is terminated without executing step S604. As described above, in this embodiment, if the human body continues to be detected after the last water stop operation, it is determined that the same user continues to use the faucet device. Thus, the previous water discharge temperature is maintained without automatically changing the water discharge temperature target value tm to the fixed water discharge temperature tM (1).

  Next, the processing in the controller 22 proceeds from step S517 in FIG. 13 to step S518. In step S518, the value of the water discharge mode flag Fpm is set to 1, and in subsequent step S518, the electromagnetic valve 20 is opened and water discharge at the previous water discharge temperature is started.

  After the water discharge is started at time t106 in FIG. 12, the processes of steps S504 → S505 → S506 → S508 → S509 → S504 are repeated without changing each flag and variable.

  Next, when the flow adjustment operation unit 8 is pressed at time t107 in FIG. 12, the process in the controller 22 proceeds from step S509 to step S510 in FIG. 13, and the water is stopped through steps S511, S512, and S513. It becomes a state. Thereafter, the processing of steps S504 → S505 → S514 → S516 → S504 is repeated without changing each flag and variable.

  Next, when the user leaves the vicinity of the wash bowl 4 at time t108 and the signal from the human body detection sensor 108 becomes 0, the processing in the controller 22 proceeds from step S514 to step S515 in FIG. 13 and in step S515. The value of the human body detection flag Fs is set to 0. Thereafter, the processing of steps S504 → S505 → S514 → S515 → S516 → S504 is repeated without changing each flag and variable.

  Furthermore, when the user approaches the vicinity of the wash bowl 4 at time t109 in FIG. 12, the signal from the human body detection sensor 108 changes to 1 indicating that the human body is being detected. However, since the human body detection flag Fs = 0, the process of steps S504 → S505 → S514 → S515 → S516 → S504 is still repeated in the controller 22.

  Next, when the flow adjustment operation unit 8 is pressed at time t110 in FIG. 12, the process in the controller 22 proceeds from step S516 in FIG. 13 to step S517, and the water discharge state is passed through steps S517, S518, and S519. It becomes.

  Here, in the subroutine shown in FIG. 14 called in step S517, the process proceeds in the order of steps S601 → S602 → S603 → S604. In step S604, the water discharge temperature target value tm is automatically changed to the fixed water discharge temperature tM (1). The Thereby, at time t110, water discharge is started at a fixed water discharge temperature tM (1) = 38 ° C. Thus, in this embodiment, since the fixed water discharge temperature tM (1) is prescribed | regulated with respect to the water discharge form which turned the water outlet 102a upward, in the case of this water discharge form (it determines in step S601). When the water discharge temperature target value tm is higher than the fixed water discharge temperature tM (1) (determined in S602) and the human body detection is temporarily interrupted (determined in S603) after the previous water discharge ends. The value tm is automatically changed to the fixed water discharge temperature tM (1).

  Next, when the user rotates the temperature adjustment operation unit 10 between times t111 and t112 in FIG. 12, the water discharge temperature is raised by the process of the flow rate temperature adjustment subroutine shown in FIG. 8 called in step S508.

  After time t112, the controller 22 repeats steps S504, S505, S506, S508, S509, and S504. Next, when the water outlet 102a is directed downward at time t113, the value of the water discharge form flag Ftk is changed to 0 in step S102 of the subroutine shown in FIG. 6 called from step S504. When the value of the water discharge form flag Ftk is changed to 0, the controller 22 repeats the processes of steps S504 → S505 → S506 → S507 → S508 → S509 → S504. Thereby, the value of the human body detection flag Fs is changed to 1.

  Next, when the flow adjustment operation unit 8 is pressed at time t114 in FIG. 12, the process in the controller 22 proceeds from step S509 to step S510 in FIG. 13, and the water is stopped through steps S510, S512, and S513. It becomes a state. Thereafter, the processing of steps S504 → S505 → S514 → S516 → S504 is repeated without changing each flag and variable.

  Next, when the user leaves the vicinity of the wash bowl 4 at time t115 and the signal from the human body detection sensor 108 becomes 0, the processing in the controller 22 proceeds from step S514 in FIG. 13 to step S515, and in step S515. The value of the human body detection flag Fs is set to 0. Thereafter, the processing of steps S504 → S505 → S514 → S515 → S516 → S504 is repeated without changing each flag and variable.

  Furthermore, when the user approaches the vicinity of the wash bowl 4 at time t116 in FIG. 12, the signal from the human body detection sensor 108 changes to 1 indicating that the human body is being detected. However, since the human body detection flag Fs = 0, the process of steps S504 → S505 → S514 → S515 → S516 → S504 is still repeated in the controller 22.

  Next, when the flow adjustment operation unit 8 is pressed at time t117 in FIG. 12, the processing in the controller 22 proceeds from step S516 in FIG. 13 to step S517, and the water discharge state is passed through steps S517, S518, and S519. It becomes.

  Here, in the subroutine shown in FIG. 14 called in step S517, only step S601 is executed, and the processing returns to the main routine shown in FIG. 13 without executing steps S602, S603, and S604. Thus, in this embodiment, since the fixed water discharge temperature is not prescribed | regulated with respect to the water discharge form which turned the water outlet 102a downward, when it is this water discharge form (it determines in step S601), water discharge The temperature target value tm is not automatically changed, and water discharge using the previous water discharge temperature target value tm is started.

  Subsequently, when the flow adjustment operation unit 8 is pressed at time t118 in FIG. 12, the water stop state is set and the value of the water stoppage mode flag Fpm is set to 0 (step S512). Further, when the user leaves the wash bowl 4 at time t119, the value of the human body detection flag Fs is set to 0 (step S515).

  According to the faucet device of the second embodiment of the present invention, since it is possible to prevent high-temperature water discharge from being performed in a state where the water discharge port is directed upward, it is possible to prevent exposure to high-temperature water discharge. can do.

  Further, according to the faucet device of the second embodiment of the present invention, after the previous water stop, when the human body detection sensor continues to detect the human body, water discharge is started at the water discharge temperature at the previous water stop. Therefore, even in a state in which the water outlet is rarely adjusted, the water discharge can be resumed at the water temperature adjusted by the user, and after the water stops, the human body detection sensor temporarily If it is assumed that the user has changed, water discharge can be started at an appropriate temperature.

Next, with reference to FIG. 15 thru | or FIG. 18, the modification of the faucet device of 2nd Embodiment mentioned above is demonstrated. Here, only the points of this modification different from the second embodiment will be described. FIG. 15 is a time chart showing the operation of this modification. FIG. 16 is a flowchart of the main routine of this modification, and FIGS. 17 and 18 are flowcharts of a subroutine called from the main routine of FIG.
First, when power is turned on at time t200 in FIG. 15, steps S702 and S703 in FIG. 16 are executed, and then the processing of steps S704 → S705 → S715 → S716 → S717 → S704 is repeated. The processing in steps S704 → S705 → S715 → S716 → S717 → S704 is the same as the processing in steps S504 → S505 → S514 → S515 → S516 → S504 in the second embodiment. On the other hand, in this modification, the immediately preceding water discharge form flag Ftkp is used, and the value of Ftkp is initially set to 0 in step S703.

  Next, when a water discharge operation is performed at time t201 in FIG. 15, the process proceeds from step S717 to step S718, and thereafter, steps S719 and S720 are executed to enter a water discharge state. The processing in steps S718 to S720 is the same as the processing in steps S517 to S519 of the second embodiment. However, in step S718, a subroutine shown in FIG. 17 is called instead of the subroutine in FIG. The subroutine shown in FIG. 17 is obtained by adding the processes of steps S805 and S806 to the subroutine shown in FIG. 14, and the processes in these steps will be described later.

  When the water discharge state is set at time t201 in FIG. 15, the processes of steps S704 → S705 → S706 → S709 → S710 → S704 are repeated thereafter. The processing in steps S704 to S710 is different from steps S504 to S509 in the second embodiment in that the value of the previous water discharge form flag Ftkp is determined in steps S706 and S707. In step S709, a subroutine shown in FIG. 18 is called instead of the subroutine shown in FIG. The subroutine shown in FIG. 18 is obtained by adding the process of step S907 to the subroutine shown in FIG. 8, and the process in this step will be described later.

Next, from time t202 to t203 in FIG. 15, the user performs a temperature adjustment operation to lower the initial set temperature of 38 ° C. This operation is processed in a subroutine shown in FIG. 18 called from step S709 in FIG.
In steps S901 to S906, the water discharge temperature target value tm is decreased according to the user's temperature adjustment operation. Since the processing in steps S901 to S906 is the same as S301 to S306 in the subroutine of FIG. 8, detailed description thereof is omitted. Finally, in step S907, the water discharge temperature target value tm is stored in a variable tm (Ftk), that is, tm (0).

  Next, when the user turns the spout 102a upward at time t203, the spout form flag Ftk is changed to 1 in the subroutine shown in FIG. 6 called from step S704 in FIG. Further, when the water discharge form flag Ftk is changed to 1, the process proceeds from step S706 to S707 in FIG. In step S707, it is determined whether or not the value of the immediately preceding water discharge form flag Ftkp is zero. Since Ftkp = 0 at time t203, the process advances to step S708 to set the human body detection flag Fs = 1. Thereafter, the processes of steps S704 → S705 → S706 → S707 → S708 → S709 → S710 → S704 are repeated.

  Next, when the user performs a water stop operation at time t204, the process proceeds from step S710 of FIG. 16 to S711, and further proceeds from step S711 to S712 to S713. In step S713, first, the value of the water discharge form flag Ftk is substituted for the previous water discharge form flag Ftkp. That is, the value of the previous water discharge form flag Ftkp is changed to 1. Further, the value of the water stoppage mode flag Fpm is set to 0. Thereafter, steps S704 → S705 → S715 → S717 → S704 are repeated.

  Subsequently, when the user leaves the faucet device at time t205, when the signal from the human body detection sensor 108 becomes 0, the process proceeds from step S715 to step S716. In step S716, the human body detection is performed. The flag Fs = 0 is set. Thereafter, the processes of steps S704 → S705 → S715 → S716 → S717 → S704 are repeated.

  Next, when the user approaches the faucet device again at time t206 and performs a water discharge operation, the signal of the human body detection sensor 108 changes to 1, and the process proceeds from step S717 to step S718. Next, in step S804 of the subroutine shown in FIG. 17 called from step S718, the water discharge temperature target value tm is automatically changed to the fixed water discharge temperature tM (1) = 38 ° C. Thereafter, the processes in steps S704 → S705 → S706 → S709 → S710 → S704 are repeated.

  Further, the user performs a temperature adjustment operation at time t206 to t207 to lower the water discharge temperature target value tm. Next, when the user performs a water stop operation at time t207, the process proceeds from step S710 to step S711. Furthermore, in step S712, the human body detection flag Fs = 1 is changed. Thereafter, steps S704 → S705 → S715 → S717 → S704 are repeated.

  Next, when the user performs a water discharge operation at time t208, the process proceeds from step S717 to step S718. Next, in the subroutine shown in FIG. 17 called from step S718, the process proceeds from step S802 to step S806, and the water discharge temperature target value tm is the stored tm (Ftkp) value, that is, at time t207. The set temperature is substituted. Thereafter, steps S704 → S705 → S706 → S709 → S710 → S704 are repeated.

  Next, when the user turns the spout 102a downward at time t209, the spout form flag Ftk is changed to 0 in the subroutine shown in FIG. 6 called from step S704 in FIG. Further, when the water discharge form flag Ftk is changed to 0, the process proceeds from step S706 to S707 in FIG. In step S707, it is determined whether or not the value of the immediately preceding water discharge form flag Ftkp is zero. At time t209, since Ftkp = 1, the process proceeds to step S709. Thereafter, the processes of steps S704 → S705 → S706 → S707 → S709 → S710 → S704 are repeated.

  Next, at time t209 to t210, the user performs a temperature adjustment operation so that the set temperature is higher than 40 ° C. Subsequently, when the user turns the water outlet 102a upward at time t210, the water discharge temperature target value tm moves the water outlet 102a upward in step S107 of the subroutine shown in FIG. 6 called from step S704 of FIG. The water discharge temperature upper limit tL (1) = 40 ° C. is automatically changed. Thereafter, the processes of steps S704 → S705 → S706 → S707 → S709 → S710 → S704 are repeated.

  Further, when the user turns the spout 102a downward at time t211, Ftk = 0 is changed in step S103 of the subroutine shown in FIG. 6 called from step S704 of FIG. Thereafter, steps S704 → S705 → S706 → S707 → S709 → S710 → S704 are repeated. Subsequently, at times t211 to t212, the user performs a temperature adjustment operation so that the set temperature is higher than 40 ° C.

  Next, when the user performs a water stop operation at time t212, the process proceeds from step S710 of FIG. 16 to S711. In step S713, the value of the previous water discharge form flag Ftkp is set to 0, and the water discharge mode flag Fpm. The value of is changed to 0. Thereafter, steps S704 → S705 → S715 → S717 → S704 are repeated.

  Subsequently, when the user turns the spout 102a upward at time t213, Ftk = 1 is changed in step S103 of the subroutine shown in FIG. 6 called from step S704 of FIG. Furthermore, in step S107, the water discharge temperature target value tm is automatically changed to the water discharge temperature upper limit tL (1) = 40 ° C. with the water discharge port 102a facing upward. However, at time t213, since the water is still stopped, hot water at this temperature is not discharged.

  Next, when the user turns the water outlet 102a downward again at time t214, Ftk = 0 is changed in step S103 of the subroutine shown in FIG. Subsequently, when the user performs a water discharge operation at time t215, the process proceeds from step S717 to step S718. Next, in the subroutine shown in FIG. 17 called from step S718, the process proceeds from step S801 to step S806. In step S806, the stored value of tm (Ftkp), that is, the set temperature at time t212 is substituted for the water discharge temperature target value tm. Thus, the automatic change of the water discharge temperature target value tm accompanying the change of the water discharge form during the water stop at time t213 is ignored, and the water discharge is resumed at the set temperature at the time t212 at which the previous water stop was performed. Thereafter, the processes in steps S704 → S705 → S706 → S709 → S710 → S704 are repeated.

  In the water faucet device of this modification, the change of the water discharge form in the water stop state is ignored, and an appropriate temperature is selected based on the water discharge form at the previous water stop and at the start of water discharge.

  As mentioned above, although preferable embodiment of this invention was described, a various change can be added to embodiment mentioned above. In particular, in the above-described embodiment, as an example of the change in the water discharge form, the attachment and withdrawal of the water discharge head, and the rotation of the water discharge head have been exemplified, but the “change in the water discharge form” has any aspect as exemplified below. Is included.

  A faucet device 300 shown in FIG. 19 includes a shower head 302, a currant 304, a flow adjustment operation unit 306, a temperature adjustment operation unit 308, a shower water discharge switch 310, and a curan water discharge switch 312. The faucet device 300 is configured to switch between shower water discharge that is a first water discharge form and curan water discharge that is a second water discharge form by pressing the shower water discharge switch 310 and the curan water discharge switch 312. ing.

  The shower water discharge which is one of the two water discharge forms has a fixed water discharge temperature which is a fixed water discharge condition, and water discharge from the shower head 302 is started at a predetermined fixed water discharge temperature. On the other hand, a fixed water discharge condition is not defined for the water discharge from Karan, and water discharge from the Karan 304 is started at the water discharge temperature at the previous water stoppage.

  Alternatively, the faucet device may be configured to start water discharge from the shower head 302 at a predetermined fixed water discharge flow rate instead of or in addition to the fixed water discharge temperature for the shower water discharge.

  Further, as in the first and second embodiments described above, the water is not automatically changed to the predetermined fixed water discharge temperature or the fixed water discharge flow rate in accordance with conditions such as the elapsed time after the previous water stop. A plug device can also be constructed.

  According to the faucet device of the present modification, since it is possible to prevent a large flow rate from being discharged unexpectedly or high temperature water discharge in the shower water discharge, water can be applied to an unintended place, It is possible to prevent the water from being discharged.

It is a perspective view which shows the state which mounted | wore the faucet body with the water discharge head of the faucet device by 1st Embodiment of this invention. It is a perspective view which shows the state which pulled out the water discharging head from the faucet main body of the faucet device by a 1st embodiment of the present invention. It is a block diagram showing composition of a faucet device by a 1st embodiment of the present invention. It is a time chart which shows the effect | action of the faucet device by 1st Embodiment of this invention. It is a control flowchart which shows the effect | action of the faucet device by 1st Embodiment of this invention. It is a control flowchart which shows the effect | action of the faucet device by 1st Embodiment of this invention. It is a control flowchart which shows the effect | action of the faucet device by 1st Embodiment of this invention. It is a control flowchart which shows the effect | action of the faucet device by 1st Embodiment of this invention. In the modification of the first embodiment of the present invention, the subroutine is called instead of the subroutine shown in FIG. In the faucet device by a 2nd embodiment of the present invention, it is a perspective view of the state where the spout was turned downward. In the faucet device by a 2nd embodiment of the present invention, it is a perspective view of the state where the spout was turned up. It is a time chart which shows the effect | action of the faucet device by 2nd Embodiment of this invention. It is a control flowchart which shows the effect | action of the faucet device by 2nd Embodiment of this invention. It is a control flowchart which shows the effect | action of the faucet device by 2nd Embodiment of this invention. It is a time chart which shows the effect | action of the modification of the faucet device of 2nd Embodiment of this invention. It is a flowchart of the main routine of the modification of the faucet device of 2nd Embodiment of this invention. It is a flowchart of the subroutine called from the main routine of FIG. It is a flowchart of the subroutine called from the main routine of FIG. It is a perspective view showing the whole faucet device by the modification of the present invention.

Explanation of symbols

Ftk Water discharge form flag Ftkp Immediate water discharge form flag Fpm Water discharge detection mode flag Fs Human body detection flag Qm Water discharge flow rate target value QM (X) Fixed water discharge flow rate tm Water discharge temperature target value tM (X) Fixed water discharge temperature QL (X) Water discharge flow rate upper limit Value tL (X) Water discharge temperature upper limit value Ts Elapsed time timer after water stop TS Time after water stop 1 Water faucet device according to the first embodiment of the present invention 2 Water discharge head (water discharge portion)
2a Water outlet 2b Shower hose 4 Washing bowl 6 Water faucet body 8 Flow control unit (operation unit)
8a Light irradiation part 10 Temperature control operation part (operation part)
10a Light irradiation part 12 Faucet device functional part 14 Detachment sensor (water discharge form detection means)
16 Temperature control valve (water discharge condition forming means)
16a Hot water supply pipe 16b Water supply pipe 16c Motor 18 Flow rate adjustment valve (water discharge condition forming means)
20 Solenoid valve 22 Controller (control means)
22a Memory (storage means)
100 Water faucet device according to the second embodiment of the present invention 102 Water discharge head 102a Water discharge port 106 Water faucet body 108 Human body detection sensor 300 Water faucet device 302 Shower head 304 Curran 306 Flow control operation unit 308 Temperature control operation unit 310 Shower water discharge switch 312 Karan spout switch

Claims (7)

A water faucet device capable of switching a plurality of water discharge forms and discharging water, and capable of setting predetermined water discharge conditions,
A water discharge part having a water discharge port;
A water discharge form detecting means for detecting which one of the plurality of water discharge forms is selected;
Storage means for storing fixed water discharge conditions corresponding to some water discharge forms among the plurality of water discharge forms;
A single operation unit for changing the water discharge condition in each of the water discharge forms;
Water discharge condition forming means for forming water discharge according to water discharge conditions;
Control means for controlling the water discharge condition forming means to discharge water based on the water discharge form detected by the water discharge form detecting means, the fixed water discharge conditions stored in the storage means, and the operation of the operation unit; Have
When water discharge is started in a water discharge form in which the fixed water discharge condition is defined, the control means starts water discharge under a fixed water discharge condition corresponding to the water discharge form, and the fixed water discharge A water faucet device that starts water discharge under water discharge conditions at the time of previous water stop when water discharge is started in a water discharge form in which conditions are not defined.   When the predetermined time has not elapsed since the previous water stop, the control means is also in the case of the previous water stop even when water discharge is started in the water discharge form in which the fixed water discharge conditions are defined. The faucet device according to claim 1, wherein water discharge is started under water discharge conditions in   The water discharge condition is the water discharge temperature, and when the fixed water discharge temperature, which is the fixed water discharge condition, is higher than the water discharge temperature at the time of the previous water stop, the water discharge form in which the fixed water discharge temperature is defined. 3. The faucet device according to claim 1, wherein water discharge is started at the water discharge temperature at the time of the previous water stop even when water discharge is started.   The water discharge condition is a water discharge flow rate, and when the fixed water discharge flow rate, which is a fixed water discharge condition, is larger than the water discharge flow rate at the previous water stop, the water discharge form in which the fixed water discharge flow rate is defined. 3. The faucet device according to claim 1, wherein water discharge is started at the water discharge flow rate at the time of the previous water stop even when water discharge is started.   The said water discharging part is comprised so that it can be pulled out from a faucet body, and the said fixed water discharging conditions are prescribed | regulated corresponding to the water discharging form which pulled out the said water discharging part. The faucet device according to 1.   The water discharge part is configured to be rotatable with respect to the faucet body, and the fixed water discharge condition is defined corresponding to a water discharge form in which a water discharge port of the water discharge part is directed upward. The faucet device according to any one of 1 to 4.   The water discharge unit is a shower head and a currant, and includes the water discharge from the shower head and the water discharge from the currant as the water discharge form, and the fixed water discharge condition is defined corresponding to the water discharge from the shower head. The faucet device according to any one of claims 1 to 4.

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