JP7507644B2 - Water discharge device and water discharge method - Google Patents

Description

This disclosure relates to a water discharge device and a water discharge method.

Conventionally, there is known a water discharge device that circulates water in a bathtub and sprays the water in a film onto the bather's shoulders to provide a massage effect (see, for example, Patent Document 1). In this specification, "water" is used as a term that includes cold water and warm water (hot water). In such a water discharge device, in order to enhance the massage effect, it has been proposed to spray the water in a line onto the bather's neck at the same time as spraying the water in a film onto the bather's shoulders.

JP 2017-104192 A

The linear water spout for the neck has a narrower area to spray than the membrane-shaped water spout for the shoulders, and the water is sprayed with force, so there is a problem that the water splashes when it hits the bather's neck, which makes for an unsightly appearance.

The present disclosure aims to provide a water discharge device and water discharge method that can prevent water from splashing.

In order to achieve the above-mentioned objective, the water-discharging device of the present disclosure comprises a first water-discharging section that takes water from a bathtub and discharges it from above the bathtub water level, a second water-discharging section that takes water from the bathtub and discharges it from above the bathtub water level, and a control section that performs control so that, when water discharge starts, water discharge from the first water-discharging section is started after the second water-discharging section, and when water discharge is stopped, water discharge from the second water-discharging section is stopped after the first water-discharging section is stopped, wherein the first water-discharging section has a first water-discharging outlet that discharges water in a film form, the second water-discharging section has a second water-discharging outlet having a narrower range of water discharged than the first water-discharging section, and the first water-discharging section discharges water from above the second water-discharging section .

In order to achieve the above-mentioned objective, the water discharge method of the present disclosure is a water discharge method executed by a control unit that controls a first water discharge unit and a second water discharge unit that take water from a bathtub and discharge it from above the bathtub water level, wherein the first water discharge unit has a first water discharge outlet that discharges water in a film form, the second water discharge unit has a second water discharge outlet that has a narrower range of water discharged than the first water discharge unit, the first water discharge unit discharges water from above the second water discharge unit, and the control unit performs control such that, when water discharge starts, water discharge from the first water discharge unit is started after the second water discharge unit has started, and when water discharge is stopped, water discharge from the first water discharge unit is stopped after the second water discharge unit has stopped.

FIG. FIG. FIG. 2 is a schematic diagram showing a water discharge device. FIG. FIG. 2 is a cross-sectional perspective view of a ball valve (first position). FIG. 2 is a cross-sectional perspective view of the ball valve (second position). 13 is a flowchart illustrating the start of shoulder/neck water spouting. 13 is a flowchart illustrating the stopping of water discharge to the shoulder and neck.

As shown in FIG. 1, the water discharge device 1 according to the first embodiment is installed in a bathtub 2 and is configured to circulate the water stored in the bathtub 2 and discharge water onto the shoulders, neck, and waist of the bather 6. The water stored in the bathtub 2 and sprayed onto the bather 6 by the water discharge device 1 is referred to as "bathtub water 2a". The water discharge device 1 has a shoulder water discharge section 311 (first water discharge section), a waist water discharge section 321, and a neck water discharge section 331 (second water discharge section). The shoulder water discharge section 311 has a shoulder water discharge port 31 (first water discharge port) that discharges the bathtub water 2a onto the shoulders of the bather 6. The waist water discharge section 321 has a waist water discharge port 32 that discharges the bathtub water 2a onto the waist of the bather 6. The neck water discharge section 331 has a neck water discharge port 33 (second water discharge port) that discharges the bathtub water 2a onto the neck of the bather 6. The shoulder outlet 31 and neck outlet 33 are located above the water level of the bathtub 2. The waist outlet 32 is located below the water level 2b (bathtub water level) of the bathtub 2.

As shown in FIG. 2, the shoulder water outlet 31 is formed as a slit extending in the horizontal direction and discharges the bath water 2a in a film shape. The waist water outlet 32 is formed as a round hole and sprays the bath water 2a in a line. There may be multiple waist water outlets 32. The neck water outlet 33 has a smaller width dimension than the shoulder water outlet 31. The width range of the neck water outlet 33 for discharging the bath water 2a is narrower than the width range of the shoulder water outlet 31. There may be multiple neck water outlets 33. The flow rate of the water discharged from the neck water outlet 33 is smaller than that of the shoulder water outlet 31 and the waist water outlet 32. The shoulder water outlet 31 is located above the neck water outlet 33. The bath water 2a discharged from the neck water outlet 33 is discharged toward the bath water 2a discharged from the shoulder water outlet 31 and heading toward the inside of the bathtub 2.

As shown in FIG. 3, the water discharge device 1 has a pump 3, a first flow path 41, a second flow path 42, a third flow path 43, a fourth flow path 44, a first valve 51, a second valve 52, and a control unit 34 (see FIG. 1). The pump 3 pumps bath water 2a (see FIG. 1 and FIG. 2). The first flow path 41 is connected downstream of the pump 3. The first valve 51 is connected downstream of the first flow path 41. The second flow path 42 and the third flow path 43 are connected downstream of the first valve 51 and branch through the first valve 51. The fourth flow path 44 branches from the first flow path 41 upstream of the first valve 51. The second valve 52 is provided in the fourth flow path 44. The control unit 34 controls the pump 3, the first valve 51, and the second valve 52. The second flow path 42 is connected to the shoulder water discharge port 31. The third flow path 43 is connected to the waist water discharge port 32. The fourth flow path 44 is connected to the neck outlet 33. The first flow path 41 to the fourth flow path 44 are all formed by a pipe. The shoulder outlet 311 has at least the second flow path 42 and the shoulder outlet 31. The neck outlet 331 has at least the fourth flow path 44, the neck outlet 33, and the second valve 52.

The first valve 51 is a three-way valve. The first valve 51 is configured to be switchable between a mode in which bathtub water 2a from the first flow path 41 flows only through the second flow path 42 (shoulder-discharge mode), a mode in which bathtub water 2a flows only through the third flow path 43 (waist-discharge mode), and a mode in which bathtub water 2a flows through both the second flow path 42 and the third flow path 43 (shoulder-waist-discharge mode).

The second valve 52 is a two-way valve. The second valve 52 is configured to be able to switch the bath water 2a that branches off from the first flow path 41 and flows into the fourth flow path 44 to flow further downstream. When the second valve 52 is open, the bath water 2a flows into the fourth flow path 44. When the second valve 52 is closed, the bath water 2a does not flow into the fourth flow path 44.

The second valve 52 employs a ball valve 53 shown in FIG. 4. As shown in FIG. 4, the ball valve 53 includes a valve box 10 and a valve body 20. The valve box 10 includes a box body 11, an inlet pipe (inlet port) 12, and an outlet pipe (outlet port) 13. For ease of explanation, the direction in which the inlet pipe 12 extends is defined as the Z direction, with the upstream side defined as the -Z side and the downstream side defined as the +Z side. The direction in which the outlet pipe 13 extends is defined as the X direction, with the upstream side defined as the -X side and the downstream side defined as the +X side. The direction perpendicular to the Z direction and the X direction is defined as the Y direction.

The box body 11 is formed in a substantially cubic shape. FIG. 5 is a cross-sectional perspective view of the ball valve 53 along the X and Z directions, showing the case where the valve body 20 is in the first position. As shown in FIG. 5, the inside of the box body 11 is formed to be hollow. An inlet opening 11a, which is a through hole, is formed at the end of the -Z side of the box body 11. An outlet opening 11b, which is a through hole, is formed at the end of the +X side of the box body 11. The shape of the box body 11 is not limited to a substantially cubic shape, and can be set as appropriate as long as the valve body 20 can rotate inside.

The inflow pipe 12 is connected to the inflow opening 11a of the box body 11. The inflow pipe 12 is formed in a cylindrical shape. The inflow pipe 12 extends from the inflow opening 11a in the -Z direction. The inside of the inflow pipe 12 is an inflow passage 12r through which the bath water 2a can flow.

The outflow pipe 13 is connected to the outflow opening 11b of the box body 11. The outflow pipe 13 is formed in a cylindrical shape. The outflow pipe 13 extends from the outflow opening 11b in the +X direction. The inside of the outflow pipe 13 is an outflow passage 13r through which the bath water 2a (see Figures 1 and 2) can flow.

The valve body 20 is rotatably arranged inside the box body 11. The valve body 20 is formed in a substantially spherical shape. The valve body 20 is rotatable around an axis extending in the Z direction that passes through the center of the valve body 20. An axis support portion 21 is formed at the end of the valve body 20 on the +Z side. The axis support portion 21 is supported on the box body 11 so as to be rotatable around an axis extending in the Z direction that passes through the center of the valve body 20. The valve body 20 is formed with a valve flow path 20r that passes through the valve body 20 and through which bath water 2a can flow.

As shown in FIG. 5, the valve flow path 20r opens on the -Z side and also opens in a direction perpendicular to the Z direction. The side of the valve flow path 20r that opens on the -Z side is the inlet hole 22, and the side that opens in a direction perpendicular to the Z direction is the outlet hole 23. The valve flow path 20r is bent by 90 degrees inside the valve body 20, bending the flow direction of the bath water 2a by 90 degrees. The inlet hole 22 is approximately circular when viewed from the Z direction. The inlet hole 22 is connected to the inlet passage 12r of the inlet pipe 12 and also to the valve flow path 20r.

The outflow hole 23 is formed along a direction rotating around an axis 20a that extends in the Z direction and passes through the center of the valve body 20 (hereinafter referred to as the R direction). The outflow hole 23 communicates with the outflow passage 13r of the outflow pipe 13 and also communicates with the valve passage 20r.

The outflow hole 23 is formed over a range of approximately 90° in the R direction centered on the axis 20a. The open end of the outflow hole 23 on one side of the valve body 20 in the R direction (the right side in FIG. 5) is the first open end 23a. The open end of the outflow hole 23 on the other side of the valve body 20 in the R direction (the left side in FIG. 5) is the second open end 23b. The outflow hole 23 has a continuous shape (connected shape) from the first open end 23a to the second open end 23b.

The end 23c on one side of the first opening end 23a in the R direction is generally arc-shaped. The end 23d on the other side of the second opening end 23b in the R direction is generally arc-shaped. The radius R1 of the arc-shaped end 23c of the first opening end 23a is greater than the radius R2 of the arc-shaped end 23d of the second opening end 23b. The length in the Z direction of the first opening end 23a (diameter = radius R1 x 2) is longer than the length in the Z direction of the second opening end 23b (diameter = radius R2 x 2).

The virtual opening area of the first opening end 23a is the area of a virtual circle S1 with a radius R1, and the virtual opening area of the second opening end 23b is the area of a virtual circle S2 with a radius R2. The virtual opening area of the first opening end 23a is larger than the virtual opening area of the second opening end 23b.

The length in the Z direction of the intermediate portion 23m between the first opening end 23a and the second opening end 23b (hereinafter referred to as the intermediate opening portion) is shorter than the length in the Z direction of the first opening end 23a and longer than the length in the Z direction of the second opening end 23b.

The valve body 20 can be stopped by the control unit 34 (see FIG. 1) at a first position shown in FIG. 5 and a second position shown in FIG. 6. In the first position shown in FIG. 5, the first opening end 23a of the outflow hole 23 faces the outflow opening 11b of the box body 11 and the outflow path 13r of the outflow pipe 13. In the second position shown in FIG. 6, the second opening end 23b of the outflow hole 23 faces the outflow opening 11b of the box body 11 and the outflow path 13r of the outflow pipe 13. The virtual opening area of the first opening end 23a is larger than the virtual opening area of the second opening end 23b. As viewed from the outflow pipe 13, the total opening area of the outflow holes 23 in the first position is larger than the total opening area of the outflow holes 23 in the second position. As a result, the amount of bath water 2a flowing out from the outflow hole 23 in the first position is greater than the amount of bath water 2a flowing out from the outflow hole 23 in the second position.

The outflow hole 23 has a continuous (connected) shape from the first opening end 23a to the second opening end 23b. This allows the bath water 2a to flow out of the outflow hole 23 even in an intermediate position where the opening middle portion 23m of the outflow hole 23 faces the outflow opening 11b of the box body 11 and the outflow path 13r of the outflow pipe 13. The bath water 2a can flow out continuously from the first position to the second position.

The Z-direction length of the opening middle portion 23m of the outflow hole 23 is shorter than the Z-direction length of the first opening end 23a and longer than the Z-direction length of the second opening end 23b. As a result, the amount of bath water 2a flowing out of the outflow hole 23 at the intermediate position is less than the amount of bath water 2a flowing out of the outflow hole 23 at the first position and is greater than the amount of bath water 2a flowing out of the outflow hole 23 at the second position.

In the R direction of the valve body 20, the surface opposite the first opening end 23a is the first water stopping surface 24a. In the R direction of the valve body 20, the surface opposite the second opening end 23b is the second water stopping surface 24b. The first water stopping surface 24a and the second water stopping surface 24b are part of the spherical surface of the valve body 20. As described above, the valve body 20 is configured to be rotatable around an axis extending in the Z direction that passes through the center of the valve body 20. One side around the axis extending in the Z direction is the T1 direction, and the other side is the T2 direction.

To stop water flow from a state where the valve body 20 is in the first position and the amount of water discharged is large, the valve body 20 is rotated 90° in the T1 direction so that the second water stop surface 24b of the valve body 20 faces the outflow passage 13r side of the outflow pipe 13. After this, the control unit 34 rotates the valve body 20 further 90° in the T1 direction until the first water stop surface 24a faces the outflow passage 13r side of the outflow pipe 13. As a result, when switching from the water stop state to the water discharge state, the valve body 20 is rotated 90° in the T1 direction to the second position, and water can be discharged from a state where the amount of water discharged is small. To stop water flow from the second position, the valve body 20 is rotated 90° in the T2 direction so that the first water stop surface 24a of the valve body 20 faces the outflow passage 13r side of the outflow pipe 13.

In the ball valve 53 configured in this manner, the amount of bath water 2a flowing out from the outlet hole 23 in the first position is greater than the amount of bath water 2a flowing out from the outlet hole 23 in the second position. This allows the flow rate of water flowing out of the outlet pipe 13 to be adjusted by rotating the valve body 20.

In the above-mentioned ball valve 53, the total opening area of the outflow holes 23 in the first position is larger than the total opening area of the outflow holes 23 in the second position when viewed from the outflow pipe 13. This allows the flow rate out of the outflow pipe 13 to be adjusted by rotating the valve body 20.

The above-mentioned ball valve 53 allows the bath water 2a to flow continuously from the first position to the second position. This allows the bath water 2a to flow uninterrupted from the outflow pipe 13 even when the valve body 20 rotates to an intermediate position between the first and second positions.

In the above-mentioned ball valve 53, the bath water 2a supplied from the pump flows through the ball valve 53 and is discharged from the neck water outlet 33. This allows the flow rate from the neck water outlet 33 to be adjusted by rotating the ball valve 53. The ball valve 53 can select the rotation direction (T1 direction, T2 direction). This allows the transition time until water starts to be discharged to be shortened by rotating the first opening end 23a or the second opening end 23b of the outlet hole 23 so that the one closer to the outlet pipe 13 faces the outlet pipe 13 when water discharge begins.

In the water discharge device 1, bath water 2a pumped from the pump 3 flows into the first flow path 41, a portion of which flows through the first flow path 41 as is and reaches the first valve 51, and the remainder flows into the fourth flow path 44 upstream of the first valve 51 downstream of the first flow path 41. The bath water 2a that reaches the first valve 51 flows into either the second flow path 42 only, the third flow path 43 only, or both the second flow path 42 and the third flow path 43, depending on the switching of the first valve 51. When the bath water 2a flows into the second flow path 42 only, it is discharged into the bathtub 2 from the shoulder outlet 31. When the bath water 2a flows into the third flow path 43 only, it is discharged into the bathtub 2 from the waist outlet 32. When the bath water 2a flows into the second flow path 42 and the third flow path 43, it is discharged into the bathtub 2 from both the shoulder outlet 31 and the waist outlet 32. When the second valve 52 is open, the bathtub water 2a that flows into the fourth flow path 44 flows through the fourth flow path 44 and is discharged from the neck outlet 33 into the bathtub 2. When the second valve 52 is closed, the bathtub water 2a that flows into the fourth flow path 44 does not flow through the fourth flow path 44 and is not discharged from the neck outlet 33.

The control unit 34 controls the operation of the pump 3, the first valve 51, and the second valve 52 in response to a signal from the switch 35 (see FIG. 1) operated by the bather 6. When multiple second commands different from the first command are input to the switch 35 after the first command is input before the first command is completed, the control unit 34 issues a second command corresponding to the final input result at the time when the first command is completed among the multiple second commands. In other words, when the button of the switch 35 is pressed multiple times while water is being discharged in response to the first command, the control unit 34 discharges water corresponding to the final input result from the switch 35 at the time when water discharge in response to the first command is completed.

When water is discharged from the shoulder outlet 31, the pump 3 is operated, the second valve 52 is closed, and the first valve 51 is set to shoulder outlet mode. As a result, the bathtub water 2a flowing through the first flow path 41 flows only into the second flow path 42. The bathtub water 2a passes from the first flow path 41 to the second flow path 42 and is discharged from the shoulder outlet 31 into the bathtub 2. When water is discharged from the waist outlet 32, the pump 3 is operated, the second valve 52 is closed, and the first valve 51 is set to waist outlet mode. As a result, the bathtub water 2a flowing through the first flow path 41 flows only into the third flow path 43. The bathtub water 2a passes from the first flow path 41 to the third flow path 43 and is discharged from the waist outlet 32 into the bathtub 2.

When water is to be discharged from both the shoulder outlet 31 and the waist outlet 32, the pump 3 is operated, the second valve 52 is closed, and the first valve 51 is set to shoulder/waist outlet mode. The bathtub water 2a flowing through the first flow path 41 is directed to the second flow path 42 and the third flow path 43. The bathtub water 2a flows from the first flow path 41 into the second flow path 42 and is discharged from the shoulder outlet 31 into the bathtub 2, and also flows from the first flow path 41 into the third flow path 43 and is discharged from the waist outlet 32 into the bathtub 2.

When water is discharged from both the shoulder outlet 31 and the neck outlet 33, the pump 3 is operated, the second valve 52 is opened, and the first valve 51 is set to the shoulder outlet mode. The bathtub water 2a flowing through the first flow path 41 flows into the second flow path 42 and the fourth flow path 44. The bathtub water 2a flows from the first flow path 41 into the second flow path 42 and is discharged from the shoulder outlet 31 into the bathtub 2, and also flows from the first flow path 41 into the fourth flow path 44 and is discharged from the neck outlet 33 into the bathtub 2. When water is discharged from both the waist outlet 32 and the neck outlet 33, the pump 3 is operated, the second valve 52 is opened, and the first valve 51 is set to the waist outlet mode. The bathtub water 2a flowing through the first flow path 41 flows into the third flow path 43 and the fourth flow path 44. Bathtub water 2a flows from the first flow path 41 into the third flow path 43 and is discharged from the waist outlet 32 into the bathtub 2, and also flows from the first flow path 41 into the fourth flow path 44 and is discharged from the neck outlet 33 into the bathtub 2.

When water is to be discharged from all of the shoulder outlet 31, waist outlet 32, and neck outlet 33, the pump 3 is operated, the second valve 52 is opened, and the first valve 51 is set to shoulder/waist discharge mode. The bathtub water 2a flowing through the first flow path 41 flows into the second flow path 42, the third flow path 43, and the fourth flow path 44. The bathtub water 2a flows from the first flow path 41 into the second flow path 42 and is discharged from the shoulder outlet 31 into the bathtub 2, flows from the first flow path 41 into the third flow path 43 and is discharged from the waist outlet 32 into the bathtub 2, and further flows from the first flow path 41 into the fourth flow path 44 and is discharged from the neck outlet 33 into the bathtub 2.

In the above water discharge device 1 and water discharge method, when water is discharged from both the shoulder water discharge port 31 and the neck water discharge port 33 (referred to as shoulder and neck water discharge) (including the case where water is discharged from the waist water discharge port 32), the control unit 34 performs control as follows. When water discharge starts, water discharge starts from the shoulder water discharge port 31 and then starts from the neck water discharge port 33. As shown in FIG. 7, when the control unit receives a signal to start shoulder and neck water discharge (S-11), it determines whether water is being discharged from the neck water discharge port 33 (referred to as neck water discharge) (S-12). If water is being discharged from the neck, it stops the neck water discharge (S-13) and starts water discharge from the shoulder water discharge port 31 (referred to as shoulder water discharge) (S-14). If water is not being discharged from the neck, it starts shoulder water discharge (S-14). After a predetermined time has elapsed since the start of shoulder water discharge, water discharge starts from the neck (S-15). This causes water to be discharged from the neck and shoulders (S-16).

When water discharge from the neck and shoulders is stopped, water discharge from the neck water discharge port 33 is stopped and then water discharge from the shoulder water discharge port 31 is stopped. As shown in FIG. 8, when the control unit receives a signal to stop water discharge from the shoulder and neck (S-21), it stops water discharge from the neck (S-22). After the neck water discharge is stopped and a predetermined time has elapsed, water discharge from the shoulders is stopped (S-23). This stops water discharge from the shoulders and neck (S-24).

By doing this, the above-mentioned water discharge device 1 and water discharge method can discharge the bathtub water 2a discharged from the neck water discharge port 33 toward the bathtub water 2a being discharged from the shoulder water discharge port 31. This makes it possible to prevent the bathtub water 2a discharged from the neck water discharge port 33 from splashing.

In the above water discharge device 1, the shoulder water discharge section 311 has a shoulder water discharge port 31 that discharges the bath water 2a in a film shape. This makes it possible to prevent the bath water 2a discharged from the shoulder water discharge port 31 from splashing.

In the above embodiment, the shoulder water outlet 31 is located above the neck water outlet 33. That is, the shoulder water outlet 311 outlets water from above the neck water outlet 331. This allows the bathtub water 2a outlet from the neck water outlet 33 to be outlet toward the bathtub water 2a being outlet from the shoulder water outlet 31. As a result, splashing of the bathtub water 2a outlet from the neck water outlet 33 can be prevented.

In the above water discharge device 1, the neck water discharge port 33 has a ball valve 53 that switches between water discharge and stop from the neck water discharge port 33. The ball valve 53 can select a rotation direction (T1 direction, T2 direction) for switching between water discharge and stop from the neck water discharge port 33. After water discharge has stopped, the control unit 34 controls the rotation of the valve body of the ball valve 53 so that the transition time until water discharge starts again is shortened. In this way, the control unit 34 can control the time from when a command to start water discharge from the neck water discharge port 33 is received to when water discharge from the neck water discharge port 33 starts to be shortened, and the water discharge device 1 can provide a comfortable water discharge without any discomfort.

In the above-mentioned water discharge device 1, when multiple second commands different from the first command are input after the first command is input to the switch 35 and before the first command is completed, the control unit 34 issues a second command that corresponds to the final input result of the multiple second commands at the time the first command is completed. This prevents unintended water discharge due to a transition to another water discharge when switching water discharge, and allows the water discharge device 1 to provide comfortable water discharge without any discomfort.

In the above water discharge device 1, the neck water discharge port 33 has a narrower water discharge range than the shoulder water discharge port 31, and the bathtub water 2a discharged from the neck water discharge port 33 is more likely to splash than the shoulder water discharge port 31. In the above water discharge device 1, the bathtub water 2a discharged from the neck water discharge port 33 is discharged toward the bathtub water 2a being discharged from the shoulder water discharge port 31, so splashing of the bathtub water 2a discharged from the neck water discharge port 33 can be effectively prevented.

The present disclosure is not limited to the above embodiment and can be modified as appropriate. In the above embodiment, the first water outlet is the shoulder water outlet 311 that outlets water from the shoulder water outlet 31, and the second water outlet is the neck water outlet 331 that outlets water from the neck water outlet 33. The position from which water is discharged may be other than the above. In the above embodiment, the shoulder water outlet 311 has a shoulder water outlet 31 that outlets bath water 2a in a film shape. The neck water outlet 331 has a neck water outlet 33 that has a smaller width dimension than the shoulder water outlet 31. The width range from which the neck water outlet 33 outlets bath water 2a is narrower than the width range from which the shoulder water outlet 31 outlets water. In contrast, the shape of each outlet and the form in which the bath water 2a is discharged may be other than the above.

In the above embodiment, the shoulder water outlet 31 is located above the neck water outlet 33. The relative positions of the shoulder water outlet 31 and the neck water outlet 33 may be other than those described above. In the above embodiment, a ball valve 53 is used for the second valve 52, and the ball valve 53 is configured to be able to control the rotation direction of the valve body 20 of the ball valve 53 after water outlet stops. The valve used for the second valve 52 may be other than those described above.

In the above embodiment, the switch 35 is configured to execute the second command that is input immediately before the first command is completed among the multiple second commands when multiple second commands different from the first command are input after the first command is completed after the multiple second commands are input after the first command. In contrast, when multiple second commands are input, the switch 35 may execute the second command that is input first after the first command.

1 Water discharge device, 2 Bathtub, 2a Bathtub water, 2b Water level, 20 Valve body, 31 Shoulder water discharge port (first water discharge port), 33 Neck water discharge port (second water discharge port), 34 Control unit, 35 Switch, 53 Ball valve, 311 Shoulder water discharge port (first water discharge port), 331 Neck water discharge port (second water discharge port)

Claims (4)

A first water discharge section that takes water from the bathtub and discharges the water from above the bathtub water level;
A second water discharge section that takes water from the bathtub and discharges water from above the bathtub water level;
a control unit that, when starting water discharge, starts water discharge from the first water discharge unit and then starts water discharge from the second water discharge unit, and, when stopping water discharge, stops water discharge from the second water discharge unit and then stops water discharge from the first water discharge unit;
Equipped with
The first water discharge portion has a first water discharge port that discharges water in a film form,
The second water discharge portion has a second water discharge port having a narrower range for discharging water than the first water discharge portion,
The first water discharger is a water discharger that discharges water from above the second water discharger . The second water discharge portion has a ball valve that switches between water discharge and stop of the second water discharge portion,
The ball valve is
a valve body having a valve flow path through which water flows;
an outflow pipe into which the water that has flowed out of the valve flow path flows,
an outlet hole in the valve flow path through which water flows out to the outlet pipe has a shape extending in a direction in which the valve body rotates,
When the valve body rotates and the outflow hole and the outflow pipe overlap, the water that has flowed out of the valve flow path flows into the outflow pipe,
The water discharge device described in claim 1, wherein the control unit controls the direction in which the valve body is rotated when water discharge is resumed after water discharge has stopped, to the side of the rotation direction of the valve body in which the outflow hole overlaps with the outflow pipe sooner, out of the two sides of the rotation direction of the valve body . A switch for switching between water discharge from the first water discharge portion and water discharge from the second water discharge portion is provided,
The water discharge device of claim 1 or 2, wherein when multiple second commands different from the first command are input after a first command is input to the switch and before processing corresponding to the first command is completed , the control unit performs processing corresponding to the second command that corresponds to the final input result at the time when processing corresponding to the first command among the multiple second commands is completed. A water discharge method executed by a control unit that controls a first water discharge unit and a second water discharge unit that take water from a bathtub and discharge water from above the bathtub water level,
The first water discharge portion has a first water discharge port that discharges water in a film form,
The second water discharge portion has a second water discharge port having a narrower range for discharging water than the first water discharge portion,
The first water discharger discharges water from above the second water discharger,
The control unit performs control so that, when water discharge starts, water discharge from the first water discharge section is started and then water discharge from the second water discharge section is started, and, when water discharge stops, water discharge from the second water discharge section is stopped and then water discharge from the first water discharge section is stopped.

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