JP5305225B2 - Faucet device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a faucet device automatically discharging water even if a discharge operation is not performed according to an operation for separating the discharge part from a holding part and preventing the wetting of a sleeve and the spattering of discharge water to the outside of a sink from occurring immediately after a pull-out when the discharge part does not reach a target discharge position in a pull-out faucet. <P>SOLUTION: This faucet device 1 includes: the discharge part 11 connected to a hose 15; a holding part 13 for detachably holding the discharge part 11; and a faucet functional part 30 for controlling water discharge, water stoppage, and flow of discharge water. The faucet device further includes a discharge part attaching/detaching detection part 18 for detecting the attached state and the detached state of the discharge part 11. The faucet functional part 30 performs a discharge control in the detached state for supplying water to the discharge part 11 so that water is discharged from a discharge port 11a with a set flow rate Q1 when the detached state is detected. When detecting the transfer of the attached state to the detached state when the water is stopped, the faucet functional part 30 performs a discharge control in the detached state after a discharge limitation control is performed. <P>COPYRIGHT: (C)2010,JPO&amp;INPIT

Description

  The present invention relates to a faucet device, and more particularly to a faucet device that can be used by pulling out a water discharge portion having a water discharge port together with a hose portion from a holding portion.

  There is known a pull-out faucet that can be used by pulling out a water discharge portion held by a holding portion together with a water discharge hose from the holding portion. In this pull-out faucet, the water discharge part can be pulled out to the desired target water discharge position together with the water discharge hose, and in this state, water can be discharged from the water discharge port provided in the water discharge part toward the target water discharge position.

In such a pull-out faucet, when the water discharger is pulled out and used, the water discharger in the water stop state is pulled out and moved to the target water discharge position, and then the operation part such as the water discharge handle is separately operated. Therefore, after starting the water discharge or operating the operation unit in advance to make the water discharge state, the operation is troublesome because the water discharge portion is pulled out and moved to the target water discharge position.
On the other hand, there has been proposed a shower faucet that automatically starts water discharge without being operated by the operation unit when the shower head is removed from the head holding unit (see, for example, Patent Document 1).

  Therefore, it is conceivable that the pull-out faucet is configured to automatically start water discharge when the water discharge portion is detached from the holding portion, like the shower faucet. If comprised in this way, since water discharge is automatically started without operating an operation part by detaching a water discharge part from a holding | maintenance part, operation is simplified and usability can be improved.

Japanese Patent Laid-Open No. 10-151900

  However, in the pull-out faucet, when it is configured to automatically start water discharge at a predetermined flow rate by detaching the water discharge part from the holding part, it is necessary to move the water discharge part from the pull-out to the target water discharge position. There arises a problem that the sleeves and the body may get wet or the outside of the sink may be splashed with water. Further, in this configuration, water is unnecessarily discharged at a predetermined flow rate to the target water discharge position, which is not preferable from the viewpoint of saving water.

  The present invention has been made to solve such a problem, and in a so-called pull-out faucet, it is necessary even if the user does not perform a water discharge operation in accordance with the operation of separating the water discharge unit from the holding unit. Providing a faucet device that can automatically prevent water discharge and prevent the water discharge from splashing to the outside of the sink or outside the sink immediately after the pull-out when the water discharge portion has not reached the target water discharge position. The purpose is to do.

  In order to solve the above-described problems, the present invention is a water supply hose connected, a water discharge portion having a water discharge port for discharging water, a holding portion for holding the water discharge portion detachably, A faucet device comprising: a supply control unit that supplies water to a water discharger; and an attachment / detachment that detects a mounted state in which the water discharger is held by a holding unit and a detached state in which the water discharger is released from the holding unit The supply control unit further includes a detection unit, and the supply control unit supplies water to the water discharge unit so that water is discharged from the water discharge port at a predetermined set flow rate when the attachment / detachment detection unit detects the separation state of the water discharge unit. The supply control unit is configured to perform hourly water discharge control, and when the attachment / detachment detection unit detects a transition from the mounted state of the water discharge unit to the detached state during water stoppage from the water discharge port, the supply control unit Supply water to the water discharge part so that water is discharged from After performing any of the water discharge limit control of the control without supplying water to the water discharge portion so as not to water discharge from your or spout, is characterized by performing the separation at jetting time control.

In the present invention configured as described above, when the water discharge part is removed from the holding part in the water stop state, water discharge is automatically started, so the user does not need to operate the flow rate operation part. It can be a faucet device that is very easy to use.
Furthermore, in the present invention, when the water discharge part is removed from the holding part, the hot water of the set flow rate does not start to discharge suddenly, but the user starts the water discharge at a low flow rate or does not start the water discharge for a predetermined period. While moving the water discharger to the desired target water discharge position, it is possible to prevent the sleeve from getting wet, the user's body getting wet, or the outside of the sink being covered with water. Moreover, in this invention, since the amount of water discharge can be restrict | limited while moving a water discharging part to the target water discharging position, it is preferable also from a water-saving viewpoint.

In the present invention, it is preferable that the supply control unit performs the water discharge control during separation after a predetermined time has elapsed since the start of the water discharge restriction control.
In the present invention configured as described above, since the restriction control is set to a predetermined time, this time is optimal until the user leaves the water discharging part from the holding part and the water discharging part reaches the target water discharging position. By setting the time to a short time, it is possible to provide a faucet device that is very convenient for the user.

Preferably, in the present invention, in the water discharge restriction control, the supply control unit increases the water discharge flow rate from the water discharge port stepwise and / or steplessly over a predetermined time from the water stop state to the set flow rate. .
In the present invention configured as described above, the flow rate changes stepwise and / or steplessly from the water stop state, and becomes a set flow rate after a predetermined time. Without being surprised, it is possible to provide a faucet device that is very convenient for the user.

In the present invention, preferably, the apparatus further includes a movement speed detection unit that detects a movement speed of the water discharger, and the supply control unit is detected by the movement speed detection unit when the attachment / detachment detection unit detects a detached state of the water discharger. The maximum value of the moving speed of the water discharger is stored, and the maximum value is reset when the attachment / detachment detection unit detects the mounting state of the water discharger, and the supply controller detects the maximum moving speed of the water discharger. When it is determined that the speed is not a value and the speed is equal to or less than the predetermined speed, the process shifts from the water discharge restriction control to the water discharge control during separation.
In this invention comprised in this way, a control part is comprised so that it may determine that the user moved the water discharging part to the target water discharging position by the movement speed of the water discharging part becoming slow. Thereby, since the water discharge flow rate is set to the set flow rate after the water discharger has moved to the target water discharge position, it is possible to provide a faucet device that is very convenient for the user.

Preferably, in the present invention, the supply control unit supplies water to the water discharge unit when the attachment / detachment detection unit detects the mounting state of the water discharge unit while performing water discharge control or water discharge restriction control at the time of separation. Do not stop water control.
In the present invention configured as described above, when the water discharger is mounted on the holding unit, the water is stopped, so that the user does not need to operate the flow rate operation unit, which is very convenient for the user. It can be a good faucet device.

  According to the water faucet device of the present invention, in response to the operation of removing the water discharger from the holding part, the water discharge is automatically performed when necessary without the user performing a water discharge operation, and Immediately after the pull-out when the water discharger does not reach the target water discharge position, it is possible to prevent the water discharge from splashing outside the sink or outside the sink.

Next, embodiments of the present invention will be described with reference to the accompanying drawings.
A faucet device according to an embodiment of the present invention will be described with reference to FIGS. 1 is a perspective view showing the entire faucet device, FIG. 2 is an explanatory view of a faucet body of the faucet device, FIG. 3 is a block diagram showing the configuration of the faucet device, and FIG. 4 is according to the first and second embodiments. The graph which shows the time change of the water discharge flow rate of water discharge control, FIG. 5 is a graph which shows the time change of the water discharge flow rate of the water discharge control by 3rd and 4th embodiment. FIGS. 6 to 8 relate to the fifth embodiment of the present invention, FIG. 6 is a graph showing a temporal change in water discharge control, FIG. 7 is a process flow of water discharge control, and FIG. 8 is a water discharge flow rate used in water discharge control. It is a graph which shows the relationship between a moving speed.

  As shown in FIG. 1, a faucet device 1 according to an embodiment of the present invention is attached to a faucet body 10 which is a spout part attached to a bowl (or sink) 3 and a counter 2 where the bowl 3 is arranged. And the water faucet function unit 30 as a supply control unit disposed below the counter 2.

  The faucet device 1 according to the present embodiment is a so-called pull-out faucet, and the faucet body 10 includes a water discharge portion (shower head) 11 having a water discharge port 11a and a holding portion 13 that holds the water detachably. ing. Thereby, the faucet device 1 is configured to draw the water discharger 11 from the holding unit 13 to a desired target water discharge position and discharge water from the water discharge port 11a of the water discharger 11.

  In the faucet device 1 according to the present embodiment, by operating the flow rate operation unit 20 and the temperature operation unit 22, an electrical signal is sent to the faucet function unit 30, and each function can be executed. Specifically, the faucet device 1 can switch water discharge and water stop from the faucet body 10 by pressing the flow rate operation unit 20, and by rotating the flow rate operation unit 20. The water discharge flow rate can be adjusted. The faucet device 1 is configured to adjust the water discharge temperature by rotating the temperature operation unit 22. Thus, the faucet device 1 according to the present embodiment can perform switching of water discharge and water stop, a flow rate adjusting function, and a temperature adjusting function by the operation units 20 and 22.

  The faucet device 1 controls the faucet function unit 30 to start water discharge from the water discharge port 11a in a predetermined manner when the water discharge unit 11 is pulled out from the holding unit 13 and is in a detached state during pull-out. It is configured to do automatically. In addition, the faucet device 1 automatically performs water stop control in which the faucet function unit 30 stops water discharge from the water discharge port 11a when the water discharge unit 11 is returned to the holding unit 13 and put into a mounted state after pull-out. Is configured to perform automatically.

As shown in FIG. 2, the faucet body 10 is connected to the water discharge portion 11 at the tip of a hose 15, and the water discharge portion 11 discharges hot water supplied from the hose 15 from the water discharge port 11 a. Can do.
The holding unit 13 is a hollow curved metal member and is fixed to the bowl 3. The holding part 13 has an insertion part 13a having a hollow shape through which the hose 15 is inserted, and the hose 15 can be led out from the opening part 13b at the tip part. The front end portion of the holding portion 13 serves as a locking portion 13c for holding the water discharger 11 in a locked state. When the water discharger 11 is disposed so as to close the opening 13b, the water discharger 11 and the locking part 13c are held in a locked state by engaging a projection (not shown) and a recess for receiving the same. .

The hose 15 is a resin tube having flexibility, and has a distal end portion connected to the water discharge portion 11 and a proximal end portion connected to the faucet function portion 30. The hose 15 may be a metal bellows.
Further, the hose 15 has a plurality of magnets 16a, 16b along the longitudinal direction on the side surface thereof from the connection portion with the water discharger 11 to the base end side, along the two straight lines A1, A2 (for example, 10 cm). Each) at a position shifted by half the distance.

In the insertion part 13a of the holding part 13, a Hall IC unit 17 is arranged in the vicinity of the opening part 13b. The Hall IC unit 17 is arranged at a position where the magnets 16 a and 16 b pass through the side portions of the two detection units of the Hall IC unit 17 when the water discharge unit 11 and the hose 15 are pulled out from the holding unit 13. Yes.
The Hall IC unit 17 is configured to output a position detection signal to the faucet function unit 30 via the signal line 19 when the hose 15 is pulled out and the magnets 16a and 16b pass in the vicinity. . The Hall IC unit 17 and the magnets 16a and 16b constitute a detection unit 18 that detects the water discharge unit attachment / detachment and the hose movement speed.

  As shown in FIG. 3, the faucet function unit 30 is connected to the hot water supply pipe 4a and the water supply pipe 4b, and discharge water temperature adjusting means 31 for outputting the mixed water whose temperature has been adjusted to the mixed water pipe 4c, on the downstream side of the mixed water pipe 4c. A flow rate adjusting means 33 for outputting the hot water whose flow rate has been connected to the hose 15 and a controller 35 for controlling the water discharge temperature adjusting means 31 and the flow rate adjusting means 33 are provided.

  The discharged water temperature adjusting means 31 includes a temperature adjusting valve (temperature adjusting valve) (not shown) and a motor for driving the valve. The water discharge temperature adjusting means 31 is configured such that the motor drives the temperature control valve in accordance with a drive signal from the controller 35. The motor-driven temperature control valve feeds back the valve opening to the controller 35. The discharged water temperature adjusting means 31 mixes hot water flowing in from the hot water supply pipe 4a and water flowing in from the water supply pipe 4b according to the valve opening degree of the temperature control valve, and outputs the mixed water to the mixed water pipe 4c. In the present embodiment, a thermo valve of a type 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.

  The flow rate adjusting means 33 includes a flow control valve (flow rate adjustment valve) (not shown), a motor that drives the flow control valve, and the like. The flow rate adjusting means 33 is configured such that the motor drives the flow control valve at a drive speed corresponding to the magnitude of the drive signal according to the drive signal from the controller 35. The motor-driven flow control valve feeds back the valve opening degree to the controller 35. The flow rate adjusting means 33 adjusts the flow rate output from the mixed water pipe 4c to the hose 15 according to the valve opening degree of the flow control valve.

  The controller 35 includes an input interface for inputting signals from the flow rate operation unit 20, the temperature operation unit 22, and the like, a storage unit 35a including a memory for storing a control program, a set value, and the like, and a microprocessor for executing the program. And an output interface for driving a motor or the like.

In the present embodiment, the controller 35 is configured to control the flow rate adjustment means 33 and the water discharge temperature adjustment means based on electrical signals representing the water discharge start, water discharge stop, water discharge flow rate, and water discharge temperature input from the flow rate operation unit 20 and the temperature operation unit 22. A drive signal (drive voltage) is sent to 31, and these are feedback-controlled.
Further, the controller 35 is configured to send a drive signal to the water discharge temperature adjusting means 31 and the flow rate adjusting means 33 in a predetermined manner when the water discharge part 11 is pulled out from the holding part 13 to control them. Furthermore, when the water discharger 11 is returned to the holding part 13, this is detected, and the flow rate adjusting means 33 is controlled to stop water discharge from the water discharger 11.

  As will be described later, in the present embodiment, when the controller 35 is pulled out, the controller 35 sets the valve opening degree corresponding to the set flow rate Q1 so that the controller 35 discharges water from the water discharge port 11a at a predetermined set flow rate Q1. Thus, control is performed to output a drive signal to the flow rate adjusting means 33 (water discharge control during separation). In the present embodiment, the controller 35 stores the opening degree of the flow control valve according to the target water discharge flow rate, and outputs a drive signal to the flow rate adjusting means 33 so as to become the set target water discharge flow rate. Feedback control of flow control valve.

Further, immediately after the pull-out, the controller 35 performs control (water discharge restriction control) to output a drive signal to the flow rate adjusting means 33 in a predetermined manner so that the valve opening degree corresponds to a flow rate smaller than the set flow rate Q1. Then, it is configured to shift to water discharge control at the time of withdrawal.
When the water is stopped, the controller 35 outputs a drive signal to the flow rate adjusting means 33 until the flow control valve is closed so as not to discharge water from the water outlet 11a.

In the present embodiment, the controller 35 outputs a drive signal to the water discharge temperature adjusting means 31 so that the water discharge temperature at the time of pull-out becomes the temperature set by the temperature operation unit 22 at the time of pull-out.
Further, in the present embodiment, when the user operates the temperature operation unit 22 and the flow rate operation unit 20 during the execution of the water discharge control at the time of withdrawal and the water discharge restriction control, the user's operation is given priority and the operation is performed. Accordingly, the water discharge flow rate and the water discharge temperature are changed.

  The controller 35 is configured to receive a position detection signal via the signal line 19 from the Hall IC unit 17 of the detection unit 18 at the time of pull-out. The controller 35 receives this position detection signal each time the magnets 16a and 16b pass in the vicinity of the detection unit of the Hall IC unit 17, and counts the position detection signal to thereby determine the reference positions of the water discharge unit 11 and the hose 15 ( That is, the drawing length L (or the value corresponding to the drawing length) from the position where the water discharger 11 is attached to the holding unit 13 is calculated.

  In the present embodiment, the magnet 16 b is located in the vicinity of the detection unit of the Hall IC unit 17 when the water discharge unit 11 is mounted. Thereby, the controller 35 always receives a position detection signal at the time of mounting. When the water discharger 11 is detached from the holding part 13, the controller 35 can no longer receive the position detection signal, and therefore can determine the removal of the water discharger 11.

  Note that the magnets 16 a and 16 b may not be positioned near the detection unit of the Hall IC unit 17 when mounted. In this case, the controller 35 does not receive a position detection signal at the time of mounting. When the water discharger 11 is removed, the controller 35 can determine the removal of the water discharger 11 by receiving the position detection signal.

  Furthermore, the controller 35 as a moving speed detection unit is configured to calculate a moving speed or a pulling speed (or a value corresponding thereto) from a time interval at which the position detection signal is received. In the present embodiment, when the water discharger 11 leaves the holding unit 13, the controller 35 updates and stores the calculated maximum value of the moving speed in the storage unit 35 a, and the water discharger 11 stores the holding unit 13. This updated maximum value is configured to be reset to zero when mounted on the.

The flow rate operation unit 20 and the temperature operation unit 22 are attached to the counter 2 as shown in FIG.
The flow rate operation unit 20 includes a disk-shaped operation handle, a shaft portion whose upper end is fixed to the operation handle and extending downward, and a detection unit which is a rotation and press detection device connected to the lower end of the shaft portion. The operation handle is attached to the detection unit via a shaft part in a state where a predetermined interval is provided between the lower surface of the operation handle and the upper surface of the counter 2.
A display unit 21 that is a light emitting unit is disposed on the lower surface of the operation handle. The display unit 21 is composed of a plurality of LEDs arranged around the shaft and its control board.

  In the flow rate operation unit 20 of the present embodiment, when the user presses the operation handle, the detection unit detects the press and sends an electrical signal indicating the start and end of water discharge to the controller 35. Further, in the flow rate operation unit 20, by rotating the operation handle, the detection unit detects the rotation amount, and sends an electrical signal corresponding to the rotation amount (rotation angle) to the controller 35. After calculating the water discharge flow rate based on the flow rate, the flow rate adjusting means 33 is controlled. Thus, the flow rate operation unit 20 is configured to be able to perform switching of water discharge / stopping water and adjusting the flow rate.

Moreover, in this flow volume operation part 20, the control board of the display part 21 receives the signal showing the water discharge flow rate from the controller 35, and supplies a drive signal to LED from the control board according to this, and LED is the light quantity according to the water discharge flow rate. It is comprised so that the light of this may be irradiated. Thereby, a circular light irradiation range 21a having a diameter corresponding to the water discharge flow rate is formed around the operation handle. Furthermore, when the operation handle is pressed to start water discharge, the display unit 21 is configured to irradiate light of a light amount corresponding to the maximum flow rate. With such a configuration, the user can recognize the current water discharge flow rate with respect to the maximum water discharge flow rate according to the size of the light irradiation range 21 a of the display unit 21.
In the present embodiment, the signal representing the discharged water flow rate received by the display unit 21 is a signal representing the opening degree of the flow regulating valve of the flow rate adjusting means 33.

The temperature operation unit 22 is configured to perform temperature adjustment by rotating the operation handle. Although the temperature operation unit 22 is different from the flow rate operation unit 20 in that the pressing operation cannot be performed, the basic configuration is the same as that of the flow rate operation unit 20, and thus the description thereof is omitted. The temperature operation unit 22 is also provided with a display unit 23 similar to the flow rate operation unit 20, and a light irradiation range 23 a is formed near the temperature operation unit 22 in accordance with the set temperature.
Note that the flow rate operation unit 20 and the temperature operation unit 22 represent the flow rate and temperature by the size of the irradiation circle, but are not limited thereto, and are configured to represent the flow rate and temperature by the irradiation angle range or irradiation angle position. May be.

Next, with reference to FIG. 4 thru | or FIG. 8, the effect | action of the faucet device 1 at the time of pull-out by embodiment of this invention is demonstrated.
4 and 5 show the relationship between the time after detachment and the water discharge flow rate from the water discharge port 11a when the water discharger 11 attached to the holding unit 13 in the water stop state is released from the holding unit 13. ing. In this example, the controller 35 performs the water discharge restriction control until the set time t <b> 1 elapses after the discharge of the water discharger 11, and then shifts to the water discharge control at the time of separation.

FIG. 4A shows a first embodiment of the present invention.
4A, the controller 35 stores the set time t1 and the set flow rate Q1 as set values in the storage unit 35a in advance, and when the detachment of the water discharger 11 is detected, a time t1 (for example, from the detection of detachment). Drive signal to the flow rate adjusting means 33 in order to increase the discharged water flow rate steplessly at a constant rate so that the discharged water flow rate reaches a set flow rate Q1 (for example, 8 L / min) after 0.5 to 1.0 seconds). Is output (water discharge restriction control). Further, the controller 35 performs control so as to maintain the set flow rate Q1 after the elapse of time t1 (water discharge control during separation).

As a result, the target water discharge flow rate increases with time, reaches the set flow rate Q1 after the set time t1, and thereafter the set flow rate Q1 is maintained as the target water discharge flow rate.
The flow rate adjusting means 33 receives the drive signal, drives the flow regulating valve in the opening direction, linearly increases the water discharge flow rate from the water discharge port 11a at a constant rate until the time t1 elapses, and is set after the time t1 elapses. After setting the flow rate Q1, the set flow rate Q1 is maintained.

  As described above, in the present embodiment, immediately after the discharge of the water discharger 11, the water is not rapidly discharged from the water discharge port 11a at the set flow rate Q1, but a predetermined time from the release so that the set flow rate Q1 is reached after the elapse of the predetermined time t1. The discharge water flow rate is gradually increased until t1 elapses. Further, in the present embodiment, the time t1 is set to an optimum time from when the user causes the water discharger 11 to leave the holding part 13 until the water discharger 11 reaches the target water discharge position.

Therefore, the user can move the water discharger 11 to the desired target water discharge position in the bowl 3 within the predetermined time t1, and the water discharge flow rate becomes the set flow rate Q1 after the movement. Thereby, the faucet device 1 of this embodiment becomes very convenient for the user.
As described above, in the present embodiment, when the water discharger 11 moves, the flow rate gradually increases up to the set flow rate Q1, so that it is possible to suppress sleeve wetting and splashing of water discharged outside the bowl 3.

FIG. 4B shows a second embodiment that is different from the example of FIG.
In the example of FIG. 4B, the controller 35 controls the water discharge flow rate from the water discharge port 11a to zero until the set time t1 elapses after leaving (water discharge restriction control), and after the set time t1 has elapsed. Then, control is performed such that the water discharge flow rate from the water discharge port 11a is set to the set flow rate Q1 (water discharge control during separation).

  In this embodiment, by controlling in this way, a time allowance for moving the water discharger 11 to the target water discharge position after separation can be given to the user. Thereby, the sleeve wetness during the movement of the water discharge part 11 and the scattering of the water discharge outside the bowl 3 can be suppressed.

FIG. 5A shows a third embodiment.
In the example of FIG. 5A, the controller 35 sets the water discharge flow rate from the water discharge port 11a to a flow rate Q2 (for example, 1 L / min) that is a flow rate smaller than the set flow rate Q1 until the time t1 after detachment elapses. In this way (water discharge restriction control), after the set time t1 has elapsed, control is performed to set the water discharge flow rate from the water discharge port 11a to the set flow rate Q1 (water discharge control during separation). That is, in this example, water is discharged from the water discharge port 11a at a suppressed flow rate Q2 immediately after separation, and water is discharged at the set flow rate Q1 after a predetermined time t1 has elapsed.

  In the present embodiment, by controlling in this way, water is discharged from the water outlet 11a with a small flow rate Q2 after the separation, so that the user functions in response to the separation of the water discharger 11 by the faucet device 1. I can confirm that. And after detachment | leave, while giving water in a small amount, the time allowance which moves the water discharging part 11 to the target water discharging position can be given with respect to a user. Thereby, it is possible to suppress sleeve wetting and splashing of water discharged outside the bowl 3.

FIG. 5B shows a fourth embodiment.
In the example of FIG. 5B, the controller 35 performs control to increase the flow rate step by step until the time t1 after detachment (water discharge restriction control), and after the time t1 after detachment, at the set flow rate Q1. Control is performed to discharge water (water discharge control at the time of withdrawal). Specifically, in this example, water is discharged from the spout 11a at a suppressed flow rate Q2 until a predetermined time t2 elapses immediately after separation, and is discharged at a flow rate Q3 increased from the flow rate Q2 from time t2 to time t3. From time t3 to time t1, water is discharged at a flow rate Q4 increased from the flow rate Q3, and after time t1 has elapsed, water is discharged continuously at a set flow rate Q1 (0 ≦ Q2 <Q3 <Q4 <Q1, 0 <t2 <T3 <t1).

  In this embodiment, by controlling in this way, immediately after the departure, the water is not rapidly discharged from the water outlet 11a at the set flow rate Q1, but the set flow rate Q1 after the predetermined time t1 has elapsed so that the set flow rate Q1 is reached. The discharged water flow rate is increased step by step until t1 elapses. Thereby, the user is not surprised by a sudden change in the flow rate, and the time during which the water discharge unit 11 is moved to the target water discharge position with respect to the user while the water discharge flow rate is gradually increased after the departure. Graceful grace. Thereby, it is possible to suppress sleeve wetting and splashing of water discharged outside the bowl 3.

  In addition, in the example of FIG. 5 (B), although it is comprised so that a water discharge flow volume may be increased in steps, it is not restricted to this, and a water discharge flow volume is combined with a step increase and a stepless increase. It may be increased. For example, in FIG. 5B, after time t2, the discharge water flow rate may be increased steplessly, that is, linearly up to the set flow rate Q1.

6 to 8 show a fifth embodiment.
In this embodiment, the controller 35 is configured to perform water discharge restriction control based on the moving speed of the water discharger 11 after separation, and subsequently perform water discharge control during separation.

As shown in FIG. 6C, the controller 35 detects the transition from the attachment of the water discharger 11 to the separation at time t4 (= 0), and the water discharger 11 is attached to the holding part 13 again at time t5. It is detected.
On the other hand, the controller 35 detects the moving speed of the water discharger 11 (that is, the pulling speed of the hose 15) according to such a desorption operation of the water discharger 11. FIG. 6B shows an example of the temporal change in the moving speed.

  In this example, the moving speed is zero since time t4, so that the moving speed is zero. Immediately after pulling out from time t4 to time t6, the moving speed rapidly increases to speed V2 (V2> set speed V1). Thereafter, the moving speed maintains a constant speed (speed V2) from time t6 to time t7, starts decreasing from time t7, and once reaches zero at time t8. That is, the user moves the water discharger 11 to the first target water discharge position at time t8. The moving speed remains zero from time t8 to time t9, and the user discharges water from the water discharger 11 at the first target water discharge position during this time.

Thereafter, the user pulls out the water discharger 11 to the second target water discharge position from time t9 to time t10. During this time, the moving speed exceeds the set speed V1.
From time t <b> 10 to time t <b> 5, the moving speed is negative, and the user performs an operation of returning the water discharger 11 to the holder 13. At time t <b> 5, the water discharger 11 is attached to the holding part 13.

When the water discharger 11 moves as shown in FIG. 6B (that is, when the hose 15 is pulled out after being pulled out), the controller 35 shows the water discharge flow rate from the water discharge port 11a in FIG. Control as shown.
Specifically, the water discharge flow rate is zero until time t4 when the water discharge unit 11 is in the mounted state. The controller 35 performs control to discharge water at a small flow rate Q2 from time t4 to time t1 after leaving (water discharge restriction control). That is, the controller 35 starts water discharge at a small flow rate Q2 in response to detecting the separation, and then the moving speed (drawing speed) becomes a set speed V1 (for example, 0.2 m / s) or less at time t1. Until this, control is performed to maintain this small flow rate Q2.

  When the moving speed becomes equal to or lower than the set speed V1 at time t1, the controller 35 determines that the water discharger 11 has reached the vicinity of the target water discharge position, and shifts from the water discharge restriction control to the discharge water discharge control. The controller 35 does not execute the water discharge restriction control until the water discharge unit 11 is attached to the holding unit 13 after the transition to the discharge water discharge control once.

  Therefore, even when the water discharger 11 is further pulled out from time t9 to time t10 or when the water discharger 11 is returned for mounting from time t10 to time t5, the water discharge control at the time of separation is maintained. For this reason, from time t4 to time t5, the controller 35 performs control to discharge water at the set flow rate Q1.

FIG. 7 shows a processing flow for shifting from the water discharge restriction control to the water discharge control during separation.
In this transition process, the controller 35 determines whether or not the moving speed has increased after detecting the withdrawal of the water discharger 11 (step S1).

If it is determined that the moving speed is increasing (step S1; Yes), the controller 35 sets the water discharge flow rate according to the current moving speed based on the graph A shown in FIG. S3). In the example of FIG. 6B, the controller 35 determines that the moving speed is increasing from time t4 to time t6, and uses the graph A.
In the example of FIG. 8A, the controller 35 sets the water discharge flow rate to the small flow rate Q2 regardless of the current moving speed. Therefore, while the moving speed is increasing, the discharged water flow rate becomes the small flow rate Q2.

  On the other hand, when it is determined that the moving speed is not increasing (Step S1; No), the controller 35 sets the water discharge flow rate according to the current moving speed based on the graph shown in FIG. Step S2). In the example of FIG. 6B, the controller 35 determines that the moving speed is not increasing from time t6 to time t1, and uses the graph B.

  In the present embodiment, when the moving speed does not exceed the set speed V1 when the water discharger 11 is detached, the discharged water flow rate is set to the set flow rate Q1 after a predetermined time has elapsed.

In the example of FIG. 8B, the controller 35 sets the water discharge flow rate to the small flow rate Q2 until the current moving speed becomes the set speed V1 or less, and sets the water discharge flow rate to the set flow rate when the move speed becomes the set speed V1 or less. It sets to Q1 (Q1> Q2), complete | finishes water discharge restriction | limiting control, and transfers to water discharge control at the time of detachment | leave. Therefore, in the example of FIG. 6, the discharged water flow rate is maintained at the small flow rate Q2 from the time t6 to the time t1, but after the time t1, the discharged water flow rate is set to the set flow rate Q1.
Note that the process of FIG. 7 is not performed after the shift to the water discharge control during separation.

  Thus, in this embodiment, before determining that the water discharging part 11 has reached the target water discharging position or its vicinity based on the moving speed of the water discharging part 11 or the pulling speed of the hose 15, water is discharged at a small flow rate Q2. After determining that the water discharger 11 has reached the target water discharge position or its vicinity, the water discharger 11 is configured to discharge water at the set flow rate Q1. This gives the user time to move the water discharger 11 to the target water discharge position while the water is being discharged in a small amount after leaving, soaking the sleeve and splashing the water discharged outside the bowl 3. Can be suppressed.

  In the present embodiment, the water discharge restriction control is configured to discharge water at a small flow rate Q2. However, the present invention is not limited to this, and as shown in FIGS. 4 and 5, there is no step during the water discharge restriction control. You may comprise so that a water discharge flow volume may be increased in steps or in steps, or you may comprise so that it may not discharge at all.

  In the above-described embodiment, the Hall IC unit 17 and the magnets 16a and 16b are used as the water discharger attachment / detachment detection unit 18 that detects the separation and movement speed of the water discharger 11. However, the present invention is not limited thereto, and the water discharger 11 and the hose are not limited thereto. Other configurations may be adopted as long as 15 drawers can be detected. As another configuration, for example, an acceleration sensor may be provided in the water discharger 11, and the controller 35 may detect the separation and movement speed of the water discharger 11 based on an acceleration detection signal from the acceleration sensor. Further, as another configuration, a rotating body that rotates by the movement of the hose 15 is provided, and the controller 35 detects the separation and movement speed of the water discharger 11 in accordance with the rotation of the rotating body. May be.

  Moreover, in the said embodiment, although the flow volume adjustment means 33 has a flow control valve which can change the discharged water flow volume linearly, not only this but the several constant flow solenoid valve from which discharged water flow differs differs with respect to piping. It is good also as a structure arrange | positioned in parallel. In this case, the water discharge flow rate can be switched in stages by selectively controlling the plurality of constant flow solenoid valves to the open state.

It is a perspective view showing the whole faucet device by the embodiment of the present invention. It is explanatory drawing of the faucet body of the faucet device by the embodiment of the present invention. It is a block diagram showing composition of a faucet device by an embodiment of the present invention. It is a graph which shows the time change of the discharged water flow rate of the discharged water control by 1st and 2nd embodiment of this invention. It is a graph which shows the time change of the discharged water flow rate of the discharged water control by 3rd and 4th embodiment of this invention. It is a graph which shows the time change of the water discharge control by 5th Embodiment of this invention. It is a processing flow of water discharge control by a 5th embodiment of the present invention. It is a graph which shows the relationship between the discharged water flow rate used by the discharged water control by 5th Embodiment of this invention, and a moving speed.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Water faucet device 10 Water faucet body 11 Water discharging part 11a Water discharging port 13 Holding part 13a Insertion part 13b Opening part 15 Hose 16a, 16b Magnet 17 Hall IC unit 18 Detection part 19 Signal line 20 Flow rate operation part 22 Temperature operation part 30 Water faucet Functional unit 31 Water discharge temperature adjusting means 33 Flow rate adjusting means 35 Controller 35a Storage unit

Claims (5)

A water discharge hose connected to the water supply hose and having a water discharge port for discharging water;
A holding unit for detachably holding the water discharger;
In a faucet device comprising a supply control unit for supplying water to the water discharge unit,
An attachment / detachment detection unit for detecting a mounting state in which the water discharge unit is held by the holding unit and a detached state in which the water discharge unit is released from the holding unit;
The supply control unit is configured to supply water to the water discharge unit so that water is discharged from the water discharge port at a predetermined set flow rate when the attachment / detachment detection unit detects the separation state of the water discharge unit. Configured to perform water discharge control,
The supply control unit discharges water from the water outlet at a flow rate less than the set flow rate when the attachment / detachment detection unit detects a transition from the attached state of the water discharge unit to the detached state during water stoppage from the water outlet. The water discharge control at the time of detachment is performed after performing the water discharge restriction control of either the control for supplying water to the water discharge unit or the control for not supplying water to the water discharge unit so as not to discharge water from the water discharge port. A faucet device.   The faucet device according to claim 1, wherein the supply control unit performs the water discharge control at the time of separation after a predetermined time has elapsed from the start of the water discharge restriction control.   In the water discharge restriction control, the supply control unit increases the water discharge flow rate from the water discharge port stepwise and / or steplessly over the predetermined time from the water stop state to the set flow rate. The faucet device according to claim 2. It further comprises a moving speed detector that detects the moving speed of the water discharger,
The supply control unit stores a maximum value of the movement speed of the water discharger detected by the movement speed detection unit when the attachment / detachment detection unit detects a detached state of the water discharger, and the attachment detection unit When detecting the wearing state of the water discharger, the maximum value is reset,
When the supply control unit determines that the detected movement speed of the water discharge unit is not the maximum value and is equal to or less than a predetermined speed, the supply control unit shifts from the water discharge restriction control to the water discharge control during separation. The faucet device according to claim 1, characterized in that:   The supply control unit is configured to stop supplying water to the water discharge unit when the attachment / detachment detection unit detects a mounting state of the water discharge unit while performing the water discharge control at the time of separation or the water discharge restriction control. The water faucet device according to any one of claims 1 to 4, wherein water control is performed.

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