Faucet device

Abstract

To provide a faucet device capable of suppressing the occurrence of a dimensional error while suppressing a construction failure and improving workability.SOLUTION: The faucet device according to the embodiment includes a plurality of water discharge parts, a faucet body fixed to the wall of the internal of a bath room for supplying hot water to the plurality of water discharge parts, and a plurality of a water delivery pipes arranged on the external of the bath room for the plurality of respective water discharge parts and the faucet body to be connected thereto, the faucet body including a combination part for combining hot water and water, a hot water supply connection part connected to a hot water supply member arranged on the wall of the bath room, a water supply connection part connected to a water supply member arranged on the wall of the bath room, a first water discharge connection part connected to a hot water delivery member arranged on the wall of the bath room, and a second water discharge connection part connected to the water delivery member arranged on the wall of the bath room, the hot water supply connection part, the water supply connection part, the first water discharge connection part, and the second water discharge connection part being formed in an integral manner.SELECTED DRAWING: Figure 19

Description

[Technical Field]

[0001] The disclosed embodiments relate to a water faucet device. [Background technology]

[0002] Conventionally, a faucet device is known that includes a water discharge portion, a faucet body, and a hot water outlet pipe, and the water discharge portion and the faucet body are connected via the hot water outlet pipe located outside the bathroom (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2004-100427 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the conventional faucet devices described above, not only the cold water supply and hot water supply connections but also the hot water outlet connection are connected to the bathroom wall, which can lead to dimensional errors in the combination of the connections. For example, when four or more connections are connected to the same wall, the impact of dimensional errors in the combination of the connections cannot be ignored. This can make installation of the faucet body difficult, leading to the risk of poor installation.

[0005] One aspect of the embodiment aims to provide a faucet device that can suppress the occurrence of dimensional errors, suppress installation defects, and improve installation efficiency. [Means for solving the problem]

[0006] A faucet device according to one aspect of the embodiment comprises a plurality of water outlets, a faucet body fixed to the wall inside a bathroom and supplying hot water to the plurality of water outlets, and a plurality of hot water outlet pipes arranged outside the bathroom and connecting the plurality of water outlets and the faucet body, respectively. The faucet body comprises a hot water / water mixing section that mixes hot water and water, a hot water supply connection section connected to a hot water supply member arranged on the wall of the bathroom, a water supply connection section connected to a water supply member arranged on the wall of the bathroom, a first water outlet connection section connected to a hot water outlet member arranged on the wall of the bathroom, and a second water outlet connection section connected to a hot water outlet member arranged on the wall of the bathroom, and the hot water supply connection section, the water supply connection section, the first water outlet connection section and the second water outlet connection section are formed integrally.

[0007] With this configuration, the hot water supply connection, cold water supply connection, first water discharge connection, and second water discharge connection are molded as a single unit, thereby reducing the number of parts. This reduces dimensional errors in the combination of each connection, preventing installation defects due to dimensional errors and improving installation efficiency. Furthermore, because the hot water supply connection, cold water supply connection, first water discharge connection, and second water discharge connection are molded as a single unit, strength that can withstand water hammer can be ensured.

[0008] In addition, in the above-mentioned faucet device, the faucet body is provided with a hot water supply flow path that is formed integrally with the hot water connection portion and connects the hot water supply connection portion and a temperature control function portion that adjusts the temperature of hot water and water, a water supply flow path that is formed integrally with the water supply connection portion and connects the water supply connection portion and the temperature control function portion, and a first hot water outlet flow path and a second hot water outlet flow path for supplying hot and cold water mixed water from the temperature control function portion to the first water outlet connection portion and the second water outlet connection portion, and at least a portion of the first hot water outlet flow path and the second hot water outlet flow path are formed integrally with the hot water supply flow path and the water supply flow path, respectively.

[0009] This configuration allows for a further reduction in the number of parts, which in turn further reduces the occurrence of dimensional errors when assembling the various parts, thereby reducing installation defects due to dimensional errors and improving installation efficiency.

[0010] In addition, in the above-mentioned faucet device, the faucet body is formed by casting an integrally molded part including the hot water supply connection portion, the water supply connection portion, the first water discharge connection portion, the second water discharge connection portion, the hot water supply flow path and the water supply flow path, and at least a portion of the first hot water outlet flow path and the second hot water outlet flow path.

[0011] With this configuration, even when each part is formed using a casting, which is relatively prone to dimensional errors, it is possible to suppress the occurrence of dimensional errors.

[0012] In the above-described faucet device, the connection ends of the hot water supply connection portion, the cold water supply connection portion, the first water discharge connection portion, and the second water discharge connection portion are formed by machining.

[0013] With this configuration, even when each connecting portion is formed using a casting, the sealing performance of the sealing surface of the connecting end portion of each connecting portion can be ensured.

[0014] In addition, in the above-mentioned faucet device, the hot water supply connection portion, the cold water supply connection portion, the first water discharge connection portion and the second water discharge connection portion each have a cap nut and a bushing, and the cap nut and the bushing have a clearance between the inner surface of the cap nut and the outer surface of the bushing, and there is a face seal between the bushing and the components that are placed on the wall of the bathroom and connected via the cap nut and the bushing.

[0015] This configuration can absorb radial errors in the bushings while maintaining watertightness at the hot water supply connection, cold water supply connection, first water discharge connection, and second water discharge connection, thereby reducing installation defects and improving installation efficiency.

[0016] In addition, in the above-mentioned faucet device, the faucet body comprises a hot water supply flow path that is formed integrally with the hot water connection portion and connects the hot water connection portion and a temperature control function portion that adjusts the temperature of hot water and water, a water supply flow path that is formed integrally with the water supply connection portion and connects the water supply connection portion and the temperature control function portion, and a first hot water outlet flow path and a second hot water outlet flow path that are provided to supply hot and cold water mixed water from the temperature control function portion to the first water outlet connection portion and the second water outlet connection portion, at least a portion of each flow path being formed integrally with the hot water supply flow path and the water supply flow path, the faucet body comprises a water outlet switching portion having an electromagnetic valve and a motor that drives the hot and cold water mixing portion, and the solenoid valve and motor are arranged in a removable position with the integrally molded portions attached that include the hot water connection portion, the water supply connection portion, the first water outlet connection portion, the second water outlet connection portion, the hot water supply flow path and the water supply flow path of the faucet body, and at least a portion of the first hot water outlet flow path and the second hot water outlet flow path.

[0017] With this configuration, for example, it is possible to reduce the occurrence of construction errors caused by removing pipes from the bathroom wall during maintenance, thereby reducing construction defects during maintenance and improving workability.

[0018] In addition, in the above-mentioned faucet device, the solenoid valve and motor are positioned in front of an integrally molded part including the hot water supply connection portion, the water supply connection portion, the first water outlet connection portion, the second water outlet connection portion, the hot water supply flow path and the water supply flow path of the faucet body, and at least a portion of the first hot water outlet flow path and the second hot water outlet flow path.

[0019] With this configuration, various valves and other components can be attached and detached while the integrally molded portion of the faucet body remains attached to the bathroom wall, making it easy to attach and detach various valves and other components to and from the faucet body. [Effects of the Invention]

[0020] According to a faucet device according to one aspect of the embodiment, it is possible to suppress the occurrence of dimensional errors, thereby suppressing installation defects and improving installation efficiency. [Brief explanation of the drawings]

[0021] [Figure 1] FIG. 1 is a diagram showing an example of a bathroom unit in which a water faucet device according to an embodiment is arranged. [Figure 2] FIG. 2 is a front view showing the remote control. [Figure 3] FIG. 3 is a block diagram showing an outline of the water faucet device according to the embodiment. [Figure 4] FIG. 4 is a perspective view (part 1) showing the faucet body. [Figure 5] FIG. 5 is a perspective view showing the mixer faucet unit. [Figure 6] FIG. 6 is a front view showing the mixer faucet unit. [Figure 7] FIG. 7 is a perspective view taken along the line VII-VII in FIG. [Figure 8] FIG. 8 is an explanatory diagram of the connection of the faucet body. [Figure 9] FIG. 9 is a plan view of the mixer faucet unit and the flow path unit. [Figure 10] FIG. 10 is a rear view of the mixer faucet unit and the flow path unit. [Figure 11] 11 is a cross-sectional view showing the flow passage unit taken along the line XI-XI in FIG. [Figure 12] 12 is a cross-sectional view showing the flow path unit taken along the line XII-XII in FIG. [Figure 13] FIG. 13 is an explanatory diagram (part 1) of the flow of hot and cold water in the flow path unit. [Figure 14] FIG. 14 is an explanatory diagram (part 2) of the flow of hot and cold water in the flow path unit. [Figure 15] FIG. 15 is an explanatory diagram (part 3) of the flow of hot and cold water in the flow path unit. [Figure 16]FIG. 16 is an explanatory diagram (part 4) of the flow of hot and cold water in the flow path unit. [Figure 17] FIG. 17 is a front view showing the flow path unit. [Figure 18] FIG. 18 is a rear view showing the flow path unit. [Figure 19] FIG. 19 is a perspective view showing the flow path unit from above on the rear side. [Figure 20] FIG. 20 is a side cross-sectional view showing the cap nut and bushing. DETAILED DESCRIPTION OF THE INVENTION

[0022] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0023] The following detailed description of preferred embodiments of the present invention will be given with reference to the accompanying drawings. However, the present invention is not limited to the following preferred embodiments.

[0023] A faucet device 1 according to the embodiment is installed in a bathroom unit 1000 that serves as a bathroom, for example, as shown in Figure 1. Figure 1 is a diagram showing an example of a bathroom unit 1000 in which a faucet device 1 according to the embodiment is arranged.

[0024] Bathroom unit 1000 includes a bathtub 1001, a first counter 1002, a second counter 1003, and a faucet device 1. In the following description, when there is no need to distinguish between water discharged by faucet device 1 and mixed water that is a mixture of hot and cold water and discharged by faucet device 1, they will be referred to as "hot and cold water."

[0025] In the following, the direction in which the second counter 1003 protrudes from the wall 1004a of the bathroom unit 1000 is referred to as the front, and the opposite side of the front is referred to as the rear, and the vertical direction is referred to as the down, and the opposite side of the down is referred to as the up, and the direction perpendicular to the front, back, and up, and down is referred to as the left, right, and left directions.

[0026] The first counter 1002 is attached to the wall portion 1004a of the bathroom unit 1000. The first counter 1002 protrudes from the wall portion 1004a into the interior of the bathroom. The first counter 1002 is provided above the washing area floor 1005 of the bathroom unit 1000. The faucet body 3 of the faucet device 1 is housed in the first counter 1002.

[0027] The second counter 1003 is attached to the wall 1004a. The second counter 1003 protrudes from the wall 1004a into the bathroom. The second counter 1003 is provided higher than the first counter 1002. For example, the second counter 1003 is provided so as to extend above the bathtub 1001. Note that the second counter 1003 does not have to extend above the bathtub 1001.

[0028] The second counter 1003 houses a portion of the faucet device 1. Specifically, the second counter 1003 houses a portion of the faucet 10 of the faucet device 1 and a portion of the hand shower 11 of the faucet device 1. The second counter 1003 is provided so that the spout 10a of the faucet 10 is exposed. The spout 10a of the faucet 10 is provided on the second counter 1003 so that the direction of hot and cold water spouting is downward.

[0029] In addition, the shower hose 11a of the hand shower 11 of the faucet device 1 is connected to the second counter 1003. The shower hose 11a is connected to a shower water conduit housed in the second counter 1003.

[0030] An overhead shower 12 of the faucet device 1 and a warm pillar 13 of the faucet device 1 are attached to the ceiling 1006 of the bathroom unit 1000. The overhead shower 12 and the warm pillar 13 are provided integrally.

[0031] The overhead shower 12 sprays hot water over a wider area of ​​the user than the hand shower 11. For example, the overhead shower 12 is configured so that hot water hits the entire body of the user. The warm pillar 13 collects hot water into a single stream and sprays it straight. In other words, the warm pillar 13 sprays straightened hot water so that it flows down in a continuous column.

[0032] A remote control 4 (operating unit) for the faucet device 1 is attached to a wall portion 1004b of the bathroom unit 1000. The remote control 4 may be attached to the wall portion 1004a on which the first counter 1002 and the second counter 1003 are attached.

[0033] The remote control 4 accepts various operations by the user on the faucet main body 3. Specifically, the remote control 4 accepts operations to set the hot and cold water temperature in the faucet main body 3. The remote control 4 accepts operations to set the hot and cold water flow rate in the faucet main body 3. The remote control 4 accepts operations to switch between discharging and stopping hot and cold water. The remote control 4 accepts operations to switch the destination to which hot and cold water is discharged. When operated by the user, the remote control 4 sends an operation signal corresponding to each operation to the controller 7 of the faucet device 1 (see Figure 3).

[0034] 2, the remote control 4 includes a temperature adjustment button 41, a water volume adjustment button 42, and a switching button 43. FIG. 2 is a front view showing the remote control 4.

[0035] The temperature adjustment button 41 is a button for adjusting the temperature of the mixed water in the faucet body 3. The temperature adjustment button 41 includes a high temperature button 41a and a low temperature button 41b. The high temperature button 41a is a button for increasing the temperature of the mixed water. The low temperature button 41b is a button for decreasing the temperature of the mixed water. The remote control 4 displays the set temperature of the mixed water on the first display unit 45a. When the high temperature button 41a or the low temperature button 41b is operated, the display on the first display unit 45a changes in accordance with the operation of each button 41a, 41b.

[0036] The temperature of the mixed water in the faucet body 3 can be adjusted within a predetermined temperature range. When the low temperature button 41b is operated and the set temperature of the mixed water becomes lower than the lowest temperature in the predetermined temperature range, the faucet body 3 does not mix hot water with cold water and instead dispenses cold water.

[0037] The water volume adjustment button 42 is a button for adjusting the flow rate of hot and cold water dispensed from the faucet device 1. The water volume adjustment button 42 includes an increase water button 42a and a decrease water button 42b. The increase water button 42a is a button for increasing the flow rate of hot and cold water. The decrease water button 42b is a button for decreasing the flow rate of hot and cold water. The remote control 4 displays the set status of the hot and cold water volume on the second display unit 45b. When the increase water button 42a or the decrease water button 42b is operated, the display on the second display unit 45b changes in accordance with the operation of each button 42a, 42b. The flow rate of hot and cold water dispensed from the faucet device 1 can be adjusted within a predetermined flow rate range.

[0038] The switching button 43 is a button for switching between discharging hot and cold water and stopping the water supply in the faucet device 1. The switching button 43 is also a button for switching the destination of the hot and cold water supply in the faucet device 1. The switching buttons 43 include a faucet button 43a, a hand shower button 43b, an overhead shower button 43c, and a warm pillar button 43d. Each of the buttons 43a to 43d is switched between "ON" and "OFF" when pressed by the user.

[0039] When each of the buttons 43a to 43d of the switching button 43 is set to "OFF," hot or cold water is not discharged. In other words, the water faucet device 1 is in a water stop state.

[0040] When any one of the switching buttons 43, 43a to 43d, is pressed from the "OFF" state, and the pressed switching button 43 becomes "ON," hot or cold water is discharged. In other words, the water faucet device 1 changes from a water stop state to a water discharge state.

[0041] When one of the switching buttons 43 is "ON" and another switching button 43 is pressed, the switching button 43 that is "ON" is changed, and the destination of hot and cold water is switched.

[0042] For example, when hand shower button 43b is "ON," hot and cold water is discharged from hand shower 11. When faucet button 43a is pressed in this state, hand shower button 43b turns "OFF" and faucet button 43a turns "ON." This changes the destination of hot and cold water discharge from hand shower 11 to faucet 10, and hot and cold water is discharged from faucet 10.

[0043] When the "ON" switch button 43 is pressed again, the pressed switch button 43 turns "OFF," and each of the buttons 43a to 43d of the switch button 43 turns "OFF," stopping the flow of hot and cold water. In other words, the water faucet device 1 changes from a water discharge state to a water stop state.

[0044] Each of the buttons 43a to 43d is configured so that the user can distinguish between the "ON" and "OFF" states. For example, a switching button 43 that is "ON" lights up, and a switching button 43 that is "OFF" lights up.

[0045] Although the faucet device 1 capable of discharging hot and cold water from the overhead shower 12, warm pillar 13, hand shower 11, and faucet 10 has been described as an example, the present invention is not limited to this. For example, the faucet device 1 may be configured without the overhead shower 12 and warm pillar 13.

[0046] Next, an overview of the faucet device 1 according to the embodiment will be described with reference to Fig. 3. Fig. 3 is a block diagram showing an overview of the faucet device 1 according to the embodiment. In Fig. 3, the flow of hot and cold water is indicated by solid arrows, and communication lines are indicated by dashed lines.

[0047] The faucet device 1 comprises a plurality of water discharge units 2, a faucet body 3, a remote control 4, and a communication unit 5.

[0048] The plurality of water discharge units 2 include a faucet 10, a hand shower 11, an overhead shower 12, and a warm pillar 13.

[0049] The faucet body 3 includes a mixer faucet unit 20, a water discharge switching section 30, and a controller 7.

[0050] The mixing faucet unit 20 includes a hot and cold water mixing section 50 and a flow rate adjustment section 60. Hot water is supplied to the hot and cold water mixing section 50 from a hot water supply source 80. In addition, water is supplied to the hot and cold water mixing section 50 from a water supply source 81. A stop valve 84 is provided in the flow path (hot water supply pipe 82) between the hot and cold water mixing section 50 and the hot water supply source 80. In addition, a stop valve 85 is provided in the flow path (water supply pipe 83) between the hot and cold water mixing section 50 and the water supply source 81.

[0051] The hot and cold water mixing unit 50 mixes hot water supplied from the hot water supply source 80 with cold water supplied from the cold water supply source 81. Specifically, the hot and cold water mixing unit 50 switches whether or not to mix hot water with cold water. The hot and cold water mixing unit 50 also adjusts the ratio of hot water to be mixed with cold water, thereby adjusting the temperature of the mixed water.

[0052] The hot and cold water mixing unit 50 includes a motor 51. The motor 51 is, for example, a stepping motor. When the temperature adjustment button 41 on the remote control 4 is operated, the hot and cold water mixing unit 50 drives the temperature control valve 210 (see FIG. 7) to switch whether or not to mix hot water with cold water.

[0053] Furthermore, in response to operation of the temperature adjustment button 41 on the remote control 4, the hot and cold water mixing unit 50 drives the temperature control valve 210 by driving the motor 51, thereby adjusting the ratio of hot water to be mixed with water. Furthermore, even if the temperature adjustment button 41 is not operated, for example, when the temperature of the hot water changes and the temperature of the mixed water changes, the hot and cold water mixing unit 50 can automatically adjust the temperature of the mixed water by adjusting the ratio of the flow rate of hot water to the flow rate of water according to the temperature of the mixed water.

[0054] Hot and cold water flows into the flow rate adjusting unit 60 from the hot and cold water mixing unit 50. When hot and cold water is discharged from the water discharge unit 2, the flow rate adjusting unit 60 adjusts the flow rate of the discharged hot and cold water.

[0055] The flow rate adjustment unit 60 includes a motor 61. The motor 61 is, for example, a stepping motor. In response to operation of the water volume adjustment button 42 on the remote control 4, the motor 61 is driven to drive the flow regulation valve 230 (see FIG. 7), thereby adjusting the flow rate of hot and cold water.

[0056] The water discharge switching unit 30 switches between discharging and stopping hot and cold water flowing out from the mixer faucet unit 20. In other words, the water discharge switching unit 30 switches between discharging and stopping hot and cold water from the water discharge unit 2. The water discharge switching unit 30 also switches the destination to which the hot and cold water is discharged. The faucet device 1 switches between discharging and stopping hot and cold water from the water discharge unit 2 using the water discharge switching unit 30, and adjusts the flow rate of the hot and cold water when it is being discharged using the flow rate adjustment unit 60.

[0057] The water discharge switching unit 30 includes a plurality of solenoid valves 31 to 35. Specifically, the water discharge switching unit 30 includes a first solenoid valve 31, a second solenoid valve 32, a third solenoid valve 33, and a fourth solenoid valve 34. The water discharge switching unit 30 may also include a fifth solenoid valve 35.

[0058] The first solenoid valve 31 to the fourth solenoid valve 34 are switched to "closed (OFF)" or "open (ON)" in response to the operation of the switching button 43.

[0059] When the first solenoid valve 31 to the fourth solenoid valve 34 are "closed," hot or cold water is not discharged from the water discharge section 2. In other words, when the first solenoid valve 31 to the fourth solenoid valve 34 are "closed," hot or cold water is stopped. When any one of the first solenoid valve 31 to the fourth solenoid valve 34 is "open," hot or cold water is discharged from the water discharge section 2 corresponding to the solenoid valve that is "open."

[0060] The first solenoid valve 31 switches between discharging and stopping hot and cold water at the faucet 10. The second solenoid valve 32 switches between discharging and stopping hot and cold water at the hand shower 11. The third solenoid valve 33 switches between discharging and stopping hot and cold water at the overhead shower 12. The fourth solenoid valve 34 switches between discharging and stopping hot and cold water at the warm pillar 13.

[0061] For example, when the first solenoid valve 31 is "open" and the second solenoid valve 32 to the fourth solenoid valve are "closed", hot and cold water is discharged from the faucet .

[0062] The fifth solenoid valve 35 is switched to "closed (OFF)" or "open (ON)" in response to operation by an external device 89 (for example, a multi-remote control provided in the bathroom). The fifth solenoid valve 35 may also be switched to "closed" or "open" in response to operation by the remote control 4. The fifth solenoid valve 35 is a valve for discharging residual water from the hose of the hand shower 11 or the like and from the piping, and is normally kept "closed." In other words, the fifth solenoid valve 35 is "open" only when residual water treatment is performed. When the fifth solenoid valve 35 is "open," residual water is discharged from the residual water discharge flow path 88.

[0063] The controller 7 controls the motor 51, the motor 61, and the first solenoid valve 31 to the fourth solenoid valve 34 in response to the operation of the faucet body 3 received by operating the remote control 4. The controller 7 also controls the fifth solenoid valve 35 in response to the operation of an external device 89, for example.

[0064] The controller 7 includes various circuits and a microcomputer having, for example, a central processing unit (CPU), read-only memory (ROM), random access memory (RAM), etc. The controller 7 may also include hardware such as an application specific integrated circuit (ASIC) or a field programmable gate array (FPGA).

[0065] The communication unit 5 receives operation signals from the remote control 4 and the external device 89, and transmits the received operation signals to the controller 7. The remote control 4 and the external device 89 are connected to the communication unit 5 via wired communication or wireless communication. The controller 7 is connected to the communication unit 5 via wired communication or wireless communication.

[0066] Next, the faucet body 3 will be described with reference to Figure 4. Figure 4 is a perspective view showing the faucet body 3. In addition to the mixer faucet unit 20, the water discharge switching unit 30, and the controller 7 (see Figure 3), the faucet body 3 comprises a flow path unit 70. The faucet body 3 is attached to the wall 1004a (see Figure 1) of the bathroom unit 1000 by the flow path unit 70.

[0067] The flow path unit 70 is formed with a flow path that allows hot water supplied from a hot water supply source 80 (see Figure 3) to flow into the mixer tap unit 20, a flow path that allows water supplied from a water supply source 81 (see Figure 3) to flow into the mixer tap unit 20, and a flow path that allows hot and cold water to flow from the mixer tap unit 20 to each water discharge section 2. The flow path unit 70 is also provided with a water discharge switching section 30. The flow path unit 70 is also provided with stop valves 84, 85 (see Figure 3). The flow path unit 70 is also provided with a residual water discharge flow path 88.

[0068] In the faucet body 3, a flow path unit 70 is provided at the rear, and a mixer faucet unit 20 is provided in front of the flow path unit 70. A part of the flow path unit 70 is provided above the mixer faucet unit 20. Also, a controller case 201 that houses the controller 7 is provided in front of the mixer faucet unit 20.

[0069] Next, the mixer tap unit 20 will be described with reference to Figures 5 to 7. Figure 5 is a perspective view showing the mixer tap unit 20. Figure 6 is a front view showing the mixer tap unit 20. Figure 7 is a perspective view of the VII-VII cross section of Figure 6.

[0070] The mixer faucet unit 20 is installed to extend in the left-right direction. A motor case 200a that houses the motor 51 of the hot and cold water mixing section 50 is installed at one left-right end of the mixer faucet unit 20, specifically the left end. A motor case 200b that houses the motor 61 of the flow rate adjustment section 60 is installed at the other left-right end of the mixer faucet unit 20, specifically the right end.

[0071] The hot and cold water mixing unit 50 switches whether or not to mix the hot water supplied from the hot water supply channel 203 with the water supplied from the water supply channel 202 by moving the temperature adjustment valve 210 (adjustment valve) in the left-right direction.

[0072] For example, when the temperature control valve 210 abuts against the case 211 provided to the left of the temperature control valve 210, the supply of hot water is blocked by the temperature control valve 210, and the hot water is not mixed with the water supplied from the water supply path 202.

[0073] Furthermore, by separating the temperature control valve 210 from the case 211, the supply of hot water is not blocked by the temperature control valve 210, and the hot water supplied from the hot water supply path 203 is mixed with the water supplied from the water supply path 202.

[0074] The temperature control valve 210 is biased by the temperature sensitive spring 212 in a direction away from the case 211. The temperature control valve 210 is also biased by the bias spring 213 in a direction toward contact with the case 211. That is, the temperature control valve 210 moves left and right depending on the magnitude relationship between the biasing force of the temperature sensitive spring 212 and the biasing force of the bias spring 213.

[0075] The temperature-sensitive spring 212 is a spring whose spring constant changes depending on the temperature, and is made of, for example, a shape memory alloy. The bias spring 213 is a spring whose spring constant is almost constant regardless of the temperature.

[0076] When the biasing force of the bias spring 213 is greater than the biasing force of the temperature-sensing spring 212, the temperature control valve 210 moves leftward toward the case 211. When the temperature control valve 210 is in contact with the case 211, the temperature control valve 210 is maintained in contact with the case 211.

[0077] When the biasing force of the temperature-sensing spring 212 is greater than the biasing force of the bias spring 213, the temperature adjustment valve 210 moves to the right so as to move away from the case 211.

[0078] When the biasing force of the temperature sensitive spring 212 and the biasing force of the bias spring 213 are equal, the temperature adjustment valve 210 does not move left or right and is held in a position where the biasing force of the temperature sensitive spring 212 and the biasing force of the bias spring 213 are balanced.

[0079] The temperature-sensing spring 212 abuts against the liner 214 at one end opposite to the end that abuts against the temperature control valve 210. The liner 214 is connected to a rotating shaft 216 via a spindle 215. The spindle 215 is rotatably supported by the case 211, and converts the rotational movement of the rotating shaft 216 into linear movement of the liner 214 in the left-right direction. Therefore, the liner 214 moves left-right in response to the rotation of the rotating shaft 216.

[0080] The rotating shaft 216 is connected to the motor 51 via a transmission mechanism. The transmission mechanism is housed in the motor case 200a. The transmission mechanism includes a first gear connected to the rotating shaft of the motor 51 and a second gear connected to the rotating shaft 216. The first gear and the second gear mesh with each other. The rotation of the rotating shaft of the motor 51 is transmitted to the rotating shaft 216 by the transmission mechanism. The transmission mechanism is the same as the transmission mechanism in the flow rate adjustment unit 60, which will be described later.

[0081] In the hot and cold water mixing unit 50, the liner 214 moves left and right in accordance with the rotational position of the rotating shaft 216, i.e., in accordance with the rotational position of the rotating shaft of the motor 51. That is, the hot and cold water mixing unit 50 can change the position of the temperature control valve 210 to a position where the biasing force of the temperature sensing spring 212 and the biasing force of the bias spring 213 are balanced in accordance with the rotational position of the rotating shaft of the motor 51. As a result, when discharging mixed water, the hot and cold water mixing unit 50 can set the temperature of the mixed water to a set temperature that corresponds to the rotational position of the rotating shaft of the motor 51.

[0082] Furthermore, when discharging mixed water, if the temperature of the hot water changes and the temperature of the mixed water changes, for example, the temperature-sensitive spring 212 expands and contracts according to the temperature of the mixed water, and the temperature control valve 210 moves left and right, automatically changing the equilibrium position of the temperature control valve 210. This adjusts the amounts of hot and cold water in the mixed water, and automatically adjusts the temperature of the mixed water.

[0083] The hot and cold water mixer 50 is in communication with the flow rate adjuster 60 via a communication hole 220. Hot and cold water flows into the flow rate adjuster 60 from the hot and cold water mixer 50 via the communication hole 220.

[0084] The flow rate adjustment unit 60 rotates the flow rate adjustment valve 230 (adjustment valve) around an imaginary axis extending in the left-right direction, thereby changing the area of ​​communication between the opening of the restricting member 221 and the opening of the flow rate adjustment valve 230, and changing the opening degree of the flow rate adjustment valve 230. By changing the opening degree of the flow rate adjustment valve 230, the flow rate adjustment unit 60 adjusts the flow rate of hot and cold water flowing out of the mixer faucet unit 20, i.e., the flow rate of hot and cold water discharged from the water discharge unit 2 (see Figure 3).

[0085] Next, the faucet body 3 will be further described with reference to Figures 8 to 16. Figure 8 is an explanatory diagram of the connections of the faucet body 3. The coordinate axes in Figure 8 correspond to the faucet body 3 (flow path unit 70). Figure 9 is a plan view of the mixer faucet unit 20 and the flow path unit 70. Figure 10 is a rear view of the mixer faucet unit 20 and the flow path unit 70. Figure 11 is a cross-sectional view showing the flow path unit 70 at the XI-XI cross section in Figure 9. Figure 12 is a cross-sectional view showing the flow path unit 70 at the XII-XII cross section in Figure 9.

[0086] As shown in FIG. 8, the faucet body 3 is attached to the wall W of the bathroom unit 1000 (see FIG. 1). B The faucet body 3 supplies hot and cold water to a plurality of water outlets 2 (see FIG. 3) including a faucet 10 (see FIG. 3), a hand shower 11 (see FIG. 3), an overhead shower 12 (see FIG. 3), and a warm pillar 13 (see FIG. 3).

[0087] The faucet body 3 is the wall W of the bathroom unit 1000. B The connecting member 90 comprises a hot water supply member 91, a water supply member 92, and a hot water outlet member 93. Of these, the hot water outlet member 93 is connected to a hot water outlet pipe 94 arranged outside the bathroom unit. There are multiple hot water outlet pipes 94, each connecting multiple water discharge units 2 to the faucet body 3. Note that only one hot water outlet pipe 94 is shown in Figure 8.

[0088] As shown in Figure 8, the faucet body 3 includes a hot water supply connection portion 110, a water supply connection portion 111, a first water discharge connection portion 112, a second water discharge connection portion 113, a third water discharge connection portion 114, and a fourth water discharge connection portion 115. As shown in Figure 8, the hot water supply connection portion 110 is connected to the hot water supply member 91. The water supply connection portion 111 is connected to the water supply member 92. The first water discharge connection portion 112, the second water discharge connection portion 113, the third water discharge connection portion 114, and the fourth water discharge connection portion 115 are each connected to the hot water outlet member 93.

[0089] As shown in Figure 8, hot water supply connection 110, water supply connection 111, first water discharge connection 112, second water discharge connection 113, third water discharge connection 114 and fourth water discharge connection 115 are formed in flow path unit 70. As described above, flow path unit 70 is provided with a flow path that allows hot water supplied from hot water supply source 80 (see Figure 3) to flow into mixer tap unit 20 (see Figure 4), a flow path that allows water supplied from water supply source 81 (see Figure 3) to flow into mixer tap unit 20, and flow paths that allow hot and cold water to flow from mixer tap unit 20 to each water discharge unit 2.

[0090] The faucet body 3 is attached to the wall W B When the connecting member 90 is attached to the passage unit 70, the rod portion 95 provided on the connecting member 90 is inserted into a cylindrical receiving portion 116 provided on the rear surface of the passage unit 70, thereby positioning the passage unit 70.

[0091] 9 to 12, the flow path unit 70 includes a water supply path 700, a hot water supply path 701, a hot and cold water inlet path 702, a faucet supply path 703, a hand shower supply path 704, an overhead shower supply path 705, a warm pillar supply path 706, and a residual water discharge path 707. The flow path unit 70 also includes a bypass path 710, a first discharge path 711, a second discharge path 712, a third discharge path 713, a fourth discharge path 714, a first merging discharge path 715, and a second merging discharge path 716.

[0092] The flow path unit 70 also includes stopcocks 84 and 85, check valves 720 and 721, an opening / closing operation unit 722, a first draining unit 723, a second draining unit 724, a third draining unit 725, and a fourth draining unit 726.

[0093] The water supply flow path 700 is connected to a water supply pipe provided in the wall portion 1004a (see Figure 1) of the bathroom unit 1000. The water supply flow path 700 is connected to the water supply path 202 (see Figure 7) of the hot and cold water mixing section 50 of the mixer tap unit 20. The water supply flow path 700 supplies water supplied from the water supply source 81 to the water supply path 202 of the hot and cold water mixing section 50. The water supply flow path 700 is provided with a stop valve 85 and a check valve 721. The check valve 721 is provided downstream of the stop valve 85.

[0094] Hot water supply flow path 701 is connected to a hot water supply pipe provided in wall portion 1004a of bathroom unit 1000. Hot water supply flow path 701 is connected to hot water supply flow path 203 (see Figure 7) of hot water and cold water mixing section 50 of mixer faucet unit 20. Hot water supply flow path 701 supplies hot water supplied from hot water source 80 to hot water supply flow path 203 of hot water and cold water mixing section 50. Hot water supply flow path 701 is provided with stop valve 84 and check valve 720. Check valve 720 is provided downstream of stop valve 84.

[0095] The hot and cold water inlet channel 702 is connected to the hot and cold water outlet section 204 (see Figure 7) of the mixer faucet unit 20. The hot and cold water inlet channel 702 is arranged to extend upward from the hot and cold water outlet section 204. The hot and cold water inlet channel 702 includes a hot and cold water switching channel 702a. The hot and cold water switching channel 702a is arranged on the downstream side of the hot and cold water inlet channel 702. The hot and cold water switching channel 702a is arranged to extend in the left-right direction.

[0096] Connected to hot and cold water switching passage 702a are faucet supply passage 703, hand shower supply passage 704, overhead shower supply passage 705, warm pillar supply passage 706, and residual water drain passage 707. Faucet supply passage 703, hand shower supply passage 704, overhead shower supply passage 705, and warm pillar supply passage 706 are provided above hot and cold water inlet passage 702.

[0097] Faucet supply passage 703 is connected to a faucet supply pipe provided in wall portion 1004a (see FIG. 1) of bathroom unit 1000. Faucet supply passage 703 is provided with first electromagnetic valve 31.

[0098] Hand shower supply passage 704 is connected to a hand shower supply pipe provided in wall portion 1004a of bathroom unit 1000. Faucet supply passage 703 is provided with second solenoid valve 32.

[0099] The overhead shower supply passage 705 is connected to an overhead shower supply pipe provided in the wall portion 1004a of the bathroom unit 1000. The overhead shower supply passage 705 is provided with a third solenoid valve 33.

[0100] The warm pillar supply passage 706 is connected to a warm pillar supply pipe provided in a wall portion 1004a of the bathroom unit 1000. A fourth solenoid valve 34 is provided in the warm pillar supply passage 706.

[0101] The residual water discharge path 707 is connected to the residual water discharge flow path 88. The residual water discharge path 707 is provided with a fifth electromagnetic valve 35.

[0102] Residual water discharge flow path 88 is formed, for example, in an L shape, and extends rearward from residual water discharge path 707 and then extends downward. The lower end of residual water discharge flow path 88 opens toward washing area floor 1005 (see FIG. 1).

[0103] Bypass flow path 710 connects water supply flow path 700 and hand shower supply path 704. Bypass flow path 710 connects water supply flow path 700 and hand shower supply path 704, straddling mixer tap unit 20. In other words, bypass flow path 710 bypasses mixer tap unit 20 and connects water supply flow path 700 and hand shower supply path 704.

[0104] Bypass flow path 710 connects an upper portion of water supply flow path 700, for example, water supply flow path 700 near water supply path 202, to the bottom side of hand shower supply path 704. Bypass flow path 710 connects water supply flow path 700, which is the flow path upstream of second solenoid valve 32, to hand shower supply path 704 (downstream flow path) which is downstream of second solenoid valve 32. The connection points between water supply flow path 700 and bypass flow path 710, and the connection points between hand shower supply path 704 and bypass flow path 710, are located higher than drainage hole 700a (described below), i.e., above.

[0105] Additionally, all of bypass flow path 710 is provided at a position higher than the location where drain hole 700a is provided. Bypass flow path 710 is formed so that its height decreases from the location where it connects to hand shower supply path 704 toward the location where it connects to water supply path 700. First seal portion 722b of opening / closing operation part 722 is inserted into bypass flow path 710.

[0106] The first discharge path 711 connects the faucet supply path 703 and the first joint discharge path 715. The first discharge path 711 is connected to the bottom side of the faucet supply path 703. A first seal portion 725c of the third water drain portion 725 is inserted into the first discharge path 711.

[0107] The second discharge channel 712 connects the hot and cold water inlet channel 702 and the first combined discharge channel 715. Specifically, the second discharge channel 712 connects an upper hot and cold water inlet channel 702, for example, a hot and cold water inlet channel 702 near the hot and cold water switching channel 702a, to the first combined discharge channel 715.

[0108] The third discharge path 713 connects the overhead shower supply path 705 and the second combined discharge path 716. The third discharge path 713 is connected to the bottom side of the overhead shower supply path 705. The third discharge path 713 (first connecting path) is connected to the overhead shower supply path 705 (first downstream path) downstream of the third solenoid valve 33.

[0109] The fourth discharge passage 714 connects the worm pillar supply passage 706 and the second joining discharge passage 716. The fourth discharge passage 714 is connected to the bottom side of the worm pillar supply passage 706. The fourth discharge passage 714 (second connecting passage) is connected to the worm pillar supply passage 706 (second downstream passage) downstream of the fourth solenoid valve 34. A first seal portion 726c of a fourth water drain portion 726 is inserted into the fourth discharge passage 714.

[0110] The first combined discharge channel 715 is connected to the first discharge channel 711 and the second discharge channel 712. The first combined discharge channel 715 is provided below the faucet supply channel 703. The second discharge channel 712 connects to the first combined discharge channel 715 below the first discharge channel 711. The first combined discharge channel 715 extends downward. The lower end of the first combined discharge channel 715 opens toward the washing area floor 1005 (see FIG. 1). The second seal portion 725d of the third drain portion 725 is inserted into the first combined discharge channel 715.

[0111] The second combined discharge channel 716 is connected to the third discharge channel 713 and the fourth discharge channel 714. The second combined discharge channel 716 is provided below the overhead shower supply channel 705 and the warm pillar supply channel 706. The third discharge channel 713 connects to the second combined discharge channel 716 below the fourth discharge channel 714. The second combined discharge channel 716 extends downward. The lower end of the second combined discharge channel 716 opens toward the washing area floor 1005. A second seal portion 726d of the fourth drain portion 726 is inserted into the second combined discharge channel 716.

[0112] Stopcocks 84 and 85 are provided so that a user can operate them from below. For example, operating sections 84a and 85a of stopcocks 84 and 85 are provided so as to be exposed below first counter 1002 (see FIG. 1).

[0113] When the water pressure upstream of check valve 721 is greater than the water pressure downstream of check valve 721, check valve 721 opens and supplies water to hot and cold water mixing section 50 via water supply flow path 700. When the water pressure upstream of check valve 721 is less than the water pressure downstream of check valve 721, check valve 721 closes and blocks the flow of water from hot and cold water mixing section 50 to water supply source 81.

[0114] When the water pressure upstream of check valve 720 is greater than the water pressure downstream of check valve 720, check valve 720 opens, supplying hot water to hot and cold water mixing section 50 via hot water supply flow path 701. When the water pressure upstream of check valve 720 is lower than the water pressure downstream of check valve 720, check valve 720 closes, blocking the flow of hot water from hot and cold water mixing section 50 to hot water source 80.

[0115] Opening / closing operation unit 722 switches the communication state of bypass flow path 710. The communication state of bypass flow path 710 can be switched between "open (communicating)" and "closed (blocked)." When the communication state of bypass flow path 710 is "open," water supply flow path 700 and hand shower supply path 704 communicate with each other. When the communication state of bypass flow path 710 is "closed," water supply flow path 700 and hand shower supply path 704 do not communicate with each other.

[0116] A portion of the opening / closing operation unit 722 is inserted into the operation path 718 that connects to the water supply flow path 700. The opening / closing operation unit 722 is configured to extend in the vertical direction. The opening / closing operation unit 722 has an operation unit 722a at its lower end. The operation unit 722a is provided so that the user can operate it from below. Specifically, the operation unit 722a is provided so as to be exposed below the first counter 1002 (see FIG. 1).

[0117] The opening / closing operation part 722 is threadedly engaged with the operation path 718, and moves up and down when the operation part 722a is rotated.

[0118] The opening / closing operation unit 722 is provided with a first seal portion 722b and a second seal portion 722c. The first seal portion 722b is provided on the upper end side of the opening / closing operation unit 722. The first seal portion 722b is held by the opening / closing operation unit 722 and inserted into the bypass flow path 710. The first seal portion 722b switches the communication state of the bypass flow path 710 by moving the opening / closing operation unit 722 up and down.

[0119] When the first seal portion 722b is inserted into the bypass flow path 710, the first seal portion 722b seals the bypass flow path 710, and puts the communication state of the bypass flow path 710 into the "closed" state.

[0120] When the first seal portion 722b is not inserted into the bypass flow passage 710, the first seal portion 722b does not seal the bypass flow passage 710, and the communication state of the bypass flow passage 710 is "open."

[0121] The second seal portion 722c is provided below the first seal portion 722b. The second seal portion 722c is held by the opening / closing operation portion 722 and inserted into the reduced diameter portion 718a of the operation path 718. The second seal portion 722c seals the reduced diameter portion 718a. The second seal portion 722c seals the reduced diameter portion 718a even when the communication state of the bypass flow path 710 is set to "open."

[0122] The first water draining section 723 (first water draining operation section) switches the communication state between the water drain hole 700a formed in the water supply flow path 700 and the outside. The communication state between the water drain hole 700a and the outside can be switched between "open" and "closed." When the communication state between the water drain hole 700a and the outside is "open," the water supply flow path 700 is connected to the outside. When the communication state between the water drain hole 700a and the outside is "closed," the water supply flow path 700 is not connected to the outside. The water draining hole 700a is formed on the lower end side of the water supply flow path 700.

[0123] A portion of the first draining portion 723 is inserted into the draining hole 700a. The first draining portion 723 includes a fixing portion 723a and an operating portion 723b. A portion of the fixing portion 723a is inserted into and fixed in the draining hole 700a. The fixing portion 723a is cylindrical, and the operating portion 723b is inserted into the fixing portion 723a. The operating portion 723b is provided so that the user can operate it from below. Specifically, the operating portion 723b is provided so as to be exposed below the first counter 1002 (see FIG. 1).

[0124] Operating portion 723b is threadedly engaged with fixed portion 723a, and when operating portion 723b is rotated, it moves up and down relative to fixed portion 723a. When water is not being supplied from water supply source 81 by stopcock 85 and operating portion 723b is moved upward, operating portion 723b pushes up check valve 721. As a result, check valve 721 becomes "open." Furthermore, when operating portion 723b moves upward, seal portion 723c provided between fixed portion 723a and operating portion 723b moves upward together with operating portion 723b and comes off fixed portion 723a. In other words, when operating portion 723b moves upward, the seal between operating portion 723b and fixed portion 723a is released. As a result, when operating portion 723b moves upward, drain hole 700a becomes "open" in communication with the outside.

[0125] Furthermore, when operating portion 723b moves downward from a state in which the seal between operating portion 723b and fixed portion 723a is released, check valve 721 is biased by spring 721a and becomes "closed." Furthermore, when operating portion 723b moves downward, seal portion 723c moves downward together with operating portion 723b and is inserted into fixed portion 723a. In other words, when operating portion 723b moves downward, operating portion 723b and fixed portion 723a are sealed. As a result, when operating portion 723b moves downward, the communication state between drain hole 700a and the outside becomes "closed."

[0126] The second water draining section 724 switches the communication state between the water drain hole 701a formed in the hot water supply flow path 701 and the outside. The communication state between the water drain hole 701a and the outside can be switched between "open" and "closed." When the communication state between the water drain hole 701a and the outside is "open," the hot water supply flow path 701 is in communication with the outside. When the communication state between the water drain hole 701a and the outside is "closed," the hot water supply flow path 701 is not in communication with the outside. The water draining hole 701a is formed on the lower end side of the hot water supply flow path 701.

[0127] Second draining section 724 includes fixing section 724a and operating section 724b. The specific configuration of second draining section 724 is the same as that of first draining section 723, and detailed description thereof will be omitted.

[0128] The third water draining unit 725 switches the communication state between the first discharge channel 711 and the first combined discharge channel 715. Specifically, because the first combined discharge channel 715 is connected to the second discharge channel 712, the third water draining unit 725 switches the communication state between the first discharge channel 711 and the second discharge channel 712. The communication state between the first discharge channel 711 and the first combined discharge channel 715 is switched between "open" and "closed." When the communication state between the first discharge channel 711 and the first combined discharge channel 715 is "open," the first discharge channel 711 and the first combined discharge channel 715 communicate with each other. When the communication state between the first discharge channel 711 and the first combined discharge channel 715 is "closed," the first discharge channel 711 and the first combined discharge channel 715 do not communicate with each other.

[0129] Furthermore, the third water draining unit 725 switches the state of communication between the first merging and discharge channel 715 and the outside. Specifically, the third water draining unit 725 switches the state of communication between the first discharge channel 711 and the second discharge channel 712 and the outside. The state of communication between the first merging and discharge channel 715 and the outside can be switched between "open" and "closed." When the state of communication between the first merging and discharge channel 715 and the outside is "open," the first merging and discharge channel 715 is in communication with the outside. When the state of communication between the first merging and discharge channel 715 and the outside is "closed," the first merging and discharge channel 715 is not in communication with the outside.

[0130] A portion of the third water draining section 725 is inserted into the first merging and discharging passage 715. The third water draining section 725 is configured to extend in the vertical direction. The third water draining section 725 has an operating section 725a at its lower end. The operating section 725a is provided so that the user can operate it from below. Specifically, the operating section 725a is provided so as to be exposed below the first counter 1002.

[0131] The third water draining portion 725 is threadedly engaged with the first merging and discharging passage 715, and when the third water draining portion 725 is rotated, it moves in the vertical direction relative to the first merging and discharging passage 715. Note that the third water draining portion 725 has a through-hole 725b that penetrates in the vertical direction at the location where it threadably engages with the first merging and discharging passage 715.

[0132] The third water draining section 725 is provided with a first seal portion 725c and a second seal portion 725d. The first seal portion 725c is provided on the upper end side of the third water draining section 725. The first seal portion 725c is held by the third water draining section 725 and inserted into the first discharge channel 711. The first seal portion 725c switches the communication state between the first discharge channel 711 and the first junction discharge channel 715 by vertical movement of the third water draining section 725.

[0133] When the first seal portion 725c is inserted into the first discharge path 711, the first seal portion 725c seals the first discharge path 711, and closes the communication between the first discharge path 711 and the first junction discharge path 715.

[0134] When the first seal portion 725c is not inserted into the first discharge path 711, the first seal portion 725c does not seal the first discharge path 711, and the communication state between the first discharge path 711 and the first merging discharge path 715 is "open."

[0135] The second seal portion 725d is provided below the first seal portion 725c. The second seal portion 725d is held by the third water draining portion 725 and inserted into the reduced diameter portion 715a of the first merging and discharging channel 715. The reduced diameter portion 715a is provided below the point where the second discharge channel 712 is connected to the first merging and discharging channel 715. The second seal portion 725d switches the communication state between the first merging and discharging channel 715 and the outside by moving the third water draining portion 725 up and down.

[0136] When the second seal portion 725d is inserted into the reduced diameter portion 715a, the second seal portion 725d seals the reduced diameter portion 715a, and closes the communication between the first junction discharge path 715 and the outside.

[0137] When the second seal portion 725d is not inserted into the reduced diameter portion 715a, the second seal portion 725d does not seal the reduced diameter portion 715a, and the communication state between the first junction discharge channel 715 and the outside is "open."

[0138] In the third drain section 725, the timing of switching the communication state between the first discharge path 711 and the first merging discharge path 715 by the first seal section 725c is different from the timing of switching the communication state between the first merging discharge path 715 and the outside by the second seal section 725d.

[0139] For example, when third draining section 725 is moved downward so that each communication state changes from "closed" to "open," first, the communication state between first merging and discharging channel 715 and the outside by second seal section 725d becomes "open." Furthermore, when third draining section 725 is moved downward, the communication state between first discharge channel 711 and first merging and discharging channel 715 by first seal section 725c becomes "open."

[0140] Furthermore, when the third water draining section 725 is moved upward so that each communication state changes from "open" to "closed," first, the communication state between the first discharge path 711 and the first merging discharge path 715 by the first seal section 725c becomes "closed." Furthermore, when the third water draining section 725 is moved upward, the communication state between the first merging discharge path 715 and the outside by the second seal section 725d becomes "closed."

[0141] The fourth water draining unit 726 (second water draining operation unit) switches the communication state between the fourth discharge channel 714 and the second combined discharge channel 716. Specifically, because the third discharge channel 713 is in communication with the second combined discharge channel 716, the fourth water draining unit 726 switches the communication state between the third discharge channel 713 and the fourth discharge channel 714. The communication state between the fourth discharge channel 714 and the second combined discharge channel 716 is switched between "open" and "closed." When the communication state between the fourth discharge channel 714 and the second combined discharge channel 716 is "open," the fourth discharge channel 714 and the second combined discharge channel 716 are in communication. When the communication state between the fourth discharge channel 714 and the second combined discharge channel 716 is "closed," the fourth discharge channel 714 and the second combined discharge channel 716 are not in communication.

[0142] Furthermore, the fourth water draining section 726 switches the communication state between the second merging and discharge channel 716 and the outside. Specifically, the fourth water draining section 726 switches the communication state between the third discharge channel 713 and the fourth discharge channel 714 and the outside. The communication state between the second merging and discharge channel 716 and the outside can be switched between "open" and "closed." When the communication state between the second merging and discharge channel 716 and the outside is "open," the second merging and discharge channel 716 is in communication with the outside. When the communication state between the second merging and discharge channel 716 and the outside is "closed," the second merging and discharge channel 716 is not in communication with the outside.

[0143] A portion of the fourth water draining section 726 is inserted into the second merging and discharging passage 716. The fourth water draining section 726 is configured to extend in the vertical direction. The fourth water draining section 726 has an operating section 726a at its lower end. The operating section 726a is provided so that the user can operate it from below. Specifically, the operating section 726a is provided so as to be exposed below the first counter 1002 (see FIG. 1).

[0144] The fourth water draining portion 726 is threadedly engaged with the second merging and discharging passage 716, and when the fourth water draining portion 726 is rotated, it moves in the vertical direction relative to the second merging and discharging passage 716. Note that the fourth water draining portion 726 has a through-hole 726b that penetrates in the vertical direction at the location where it threadably engages with the second merging and discharging passage 716.

[0145] The fourth water draining section 726 is provided with a first seal portion 726c and a second seal portion 726d. The first seal portion 726c is provided on the upper end side of the fourth water draining section 726. The first seal portion 726c is held by the fourth water draining section 726 and inserted into the fourth discharge channel 714. The first seal portion 726c switches the communication state between the fourth discharge channel 714 and the second merged discharge channel 716 by moving the fourth water draining section 726 up and down.

[0146] When the first seal portion 726c is inserted into the fourth discharge path 714, the first seal portion 726c seals the fourth discharge path 714, and closes the communication between the fourth discharge path 714 and the second combined discharge path 716.

[0147] When the first seal portion 726c is not inserted into the fourth discharge path 714, the first seal portion 726c does not seal the fourth discharge path 714, and the communication state between the fourth discharge path 714 and the second junction discharge path 716 is "open."

[0148] The second seal portion 726d is provided below the first seal portion 726c. The second seal portion 726d is held by the fourth water draining portion 726 and inserted into the reduced diameter portion 716a of the second merging and discharging channel 716. The reduced diameter portion 716a is provided below the point where the third discharge channel 713 is connected to the second merging and discharging channel 716. The second seal portion 726d switches the communication state between the second merging and discharging channel 716 and the outside by moving the fourth water draining portion 726 up and down.

[0149] When the second seal portion 726d is inserted into the reduced diameter portion 716a, the second seal portion 726d seals the reduced diameter portion 716a, and closes the communication between the second junction discharge path 716 and the outside.

[0150] When the second seal portion 726d is not inserted into the reduced diameter portion 716a, the second seal portion 726d does not seal the reduced diameter portion 716a, and the communication state between the second junction discharge channel 716 and the outside is "open."

[0151] In the fourth drain section 726, the timing of switching the communication state between the fourth discharge path 714 and the second merging discharge path 716 by the first seal section 726c is different from the timing of switching the communication state between the second merging discharge path 716 and the outside by the second seal section 726d.

[0152] For example, when the fourth water draining section 726 is moved downward so that each communication state changes from "closed" to "open," first, the communication state between the second merging and discharging passage 716 and the outside by the second sealing section 726d becomes "open." Furthermore, when the fourth water draining section 726 is moved downward, the communication state between the fourth discharging passage 714 and the second merging and discharging passage 716 by the first sealing section 726c becomes "open."

[0153] Furthermore, when the fourth water draining section 726 is moved upward so that each communication state changes from "open" to "closed," first, the communication state between the fourth discharge path 714 and the second merging discharge path 716 by the first seal portion 726c becomes "closed." Furthermore, when the fourth water draining section 726 is moved upward, the communication state between the second merging discharge path 716 and the outside by the second seal portion 726d becomes "closed."

[0154] 13 to 16 are explanatory diagrams of the flow of hot water and cold water in the flow path unit 70. In Figs. 13 to 16, the flow of cold water is indicated by dashed arrows, the flow of hot water is indicated by dashed arrows, and the flow of mixed hot and cold water is indicated by solid arrows.

[0155] When hot or cold water is discharged from the water discharger 2, the communication state of the bypass flow path 710 is "closed." Furthermore, in the first water draining section 723, the communication state of the water drain hole 700a with the outside is "closed." Furthermore, in the second water draining section 724, the communication state of the water drain hole 701a with the outside is "closed." Furthermore, in the third water draining section 725, the communication state of the first discharge path 711 with the first merging discharge path 715 is "closed," and the communication state of the first merging discharge path 715 with the outside is "closed." Furthermore, in the fourth water draining section 726, the communication state of the third discharge path 713 with the second merging discharge path 716 is "closed," and the communication state of the second merging discharge path 716 with the outside is "closed."

[0156] When hot and cold water is discharged from the water discharger 2, the flow paths of the flow path unit 70 are formed so that the hot and cold water mainly flows upward from the upstream side to the downstream side.

[0157] As shown in Figures 13 to 15, water supplied from a water supply source 81 (see Figure 3) flows through a water supply flow path 700 and enters a hot and cold water mixing section 50 (see Figure 15) that adjusts the temperature of the water. The water supply flow path 700 is a flow path that connects a temperature adjustment function section such as the hot and cold water mixing section 50 to a water supply connection section 111. Hot water supplied from a hot water supply source 80 (see Figure 3) flows through a hot water supply flow path 701 and enters the hot and cold water mixing section 50. The hot water supply flow path 701 is a flow path that connects a temperature adjustment function section such as the hot and cold water mixing section 50 to a hot water supply connection section 110.

[0158] The hot and cold water mixed water (mixed water) obtained by mixing cold and hot water by hot and cold water mixer 50 flows into hot and cold water inlet channel 702. The mixed water that flows into hot and cold water inlet channel 702 flows through first hot water outlet channel 121 and second hot water outlet channel 122, and then flows into each connection section (first water outlet connection section 112, second water outlet connection section 113, third water outlet connection section 114, and fourth water outlet connection section 115) including first water outlet connection section 112 and second water outlet connection section 113 via hot and cold water switching channel 702a, which serves as a branching channel. For example, the mixed water that flows into hand shower supply channel 704 flows from second water outlet connection section 113 into the hand shower supply pipe and is discharged from hand shower 11 (see FIG. 1).

[0159] In this way, the first hot water outlet flow path 121 and the second hot water outlet flow path 122 serve as flow paths for allowing mixed water from the hot water / cold water mixing section 50, such as a temperature control function section, to flow into the first water outlet connection section 112, the second water outlet connection section 113, the third water outlet connection section 114 and the fourth water outlet connection section 115.

[0160] Also, as shown in Figure 16, mixed water from the hot and cold water mixing section 50 flows in through the mixed water inlet 7021a, flows through the hot and cold water inlet passage 7021 that is connected in the vertical direction inside the flow path unit 70, and flows into the first hot water outlet flow path 121 and the second hot water outlet flow path 122 from the outlet 7021b that is above the inlet 7021a.

[0161] Fig. 17 is a front view showing the flow path unit 70. Fig. 18 is a rear view showing the flow path unit 70. Fig. 19 is a perspective view showing the flow path unit 70 from above the rear. As shown in Figs. 12 and 17 to 19, in the flow path unit 70, the hot water supply connection 110, the cold water supply connection 111, the first water discharge connection 112 and the second water discharge connection 113 are integrally formed.

[0162] In this way, the hot water supply connection 110, the cold water supply connection 111, the first water discharge connection 112, and the second water discharge connection 113 are integrally molded, which reduces the number of parts. This makes it possible to suppress dimensional errors in the combination of each connection, which suppresses installation defects due to dimensional errors and improves installation efficiency. Furthermore, because the hot water supply connection 110, the cold water supply connection 111, the first water discharge connection 112, and the second water discharge connection 113 are integrally molded, it is possible to ensure strength that can withstand water hammer.

[0163] Furthermore, the hot water supply flow path 701 is formed integrally with the hot water supply connection 110. Furthermore, the water supply flow path 700 is formed integrally with the water supply connection 111. In the flow path unit 70, at least a portion of each of the first hot water outlet flow path 121 and the second hot water outlet flow path 122 is formed integrally with the hot water supply flow path 701 and the water supply flow path 700. In this way, the first hot water outlet flow path 121 and the second hot water outlet flow path 122 are integrally molded with the hot water supply connection 110 and the water supply connection 111, and further with the hot water supply flow path 701 and the water supply flow path 700, thereby further reducing the number of parts. This further reduces the occurrence of dimensional errors in the combination of each part, thereby preventing installation defects due to dimensional errors and improving installation ease.

[0164] Furthermore, in the flow path unit 70, the above-mentioned integrally molded parts, i.e., the integrally molded parts including the hot water supply connection 110, the water supply connection 111, the first water discharge connection 112, the second water discharge connection 113, the hot water supply flow path 701, the water supply flow path 700, and at least a part of the first hot water outlet flow path 121 and the second hot water outlet flow path 122 in the flow path unit 70, are formed from castings. This makes it possible to suppress the occurrence of dimensional errors even when forming each part using castings, which are relatively prone to dimensional errors.

[0165] Furthermore, in the flow path unit 70, the connection ends of the hot water supply connection 110, the cold water supply connection 111, the first water discharge connection 112, and the second water discharge connection 113 are formed by machining. Specifically, the sealing surfaces 110a-115a (see FIG. 19) of the connection ends of the hot water supply connection 110, the cold water supply connection 111, the first water discharge connection 112, and the second water discharge connection 113 are formed by cutting. This makes it possible to form highly accurate machined surfaces, even when forming each connection using casting, and ensures the sealing performance of the sealing surfaces 110a-115a of the connection ends of each connection.

[0166] Also, in the faucet device 1, the above-mentioned solenoid valves (first solenoid valve 31 to fifth solenoid valve 35) (see Figure 3) and motors 51, 61 (see Figure 3) are arranged in a position that allows them to be attached and detached when the flow path unit 70 is attached, i.e., the integrally molded portion in the flow path unit 70 of the faucet body 3, which includes the hot water supply connection portion 110, the water supply connection portion 111, the first water outlet connection portion 112, the second water outlet connection portion 113, the hot water supply flow path 701 and the water supply flow path 700, and at least a portion of the first hot water outlet flow path 121 and the second hot water outlet flow path 122.

[0167] This allows, for example, the wall wall of the bathroom unit 1000 to be B This can reduce the occurrence of construction errors caused by removing piping, etc., and can reduce construction defects during maintenance and improve construction efficiency.

[0168] In addition, in the faucet device 1, the solenoid valves (first solenoid valve 31 to fifth solenoid valve 35) and motors 51, 61 are arranged in front of the integrally molded portion of the flow path unit 70 of the faucet body 3, as shown in FIG.

[0169] As a result, the integrally molded portion of the faucet body 3 is attached to the wall W of the bathroom unit 1000. B In other words, various valves and the like can be easily attached and detached to and from the faucet body 3.

[0170] In addition, a connection bush portion 300 (see Figure 20) is provided at each connection end of the hot water connection portion 110, the water supply connection portion 111, the first water discharge connection portion 112, the second water discharge connection portion 113, the third water discharge connection portion 114 and the fourth water discharge connection portion 115 for connecting the hot water discharge member 93 (see Figure 8) of the connection member 90.

[0171] 20, the connection bush part 300 includes a cap nut 310 and a bushing 320. The cap nut 310 is formed in a cylindrical shape. The cap nut 310 is attached to a base end portion 321 of the bushing 320 so as to cover the base end portion 321 in the axial direction.

[0172] The bushing 320 is formed in a cylindrical shape. The bushing 320 has a threaded portion 323 and a middle portion 324. The threaded portion 323 is formed at a tip portion 322 of the bushing 320. The middle portion 324 is formed on the outer circumferential surface of the bushing 320, and is formed at a position closer to the base end portion 321 of the bushing 320 than the threaded portion 323. At the middle portion 324, the diameter of the bushing 320 is smaller, forming a space.

[0173] The threaded portion 323 of the bushing 320 is threadedly engaged with a connection portion-side threaded portion 130 formed near the seal surface of the connection end of the flow path unit 70 (see FIG. 8, etc.). As the threaded portion 323 becomes more engaged with the connection portion-side threaded portion 130, it passes through the connection portion-side threaded portion 130. In this case, the connection portion-side threaded portion 130 is held by the intermediate portion 324. As a result, the bushing 320 is prevented from coming off by the threaded portion 323 at the tip portion 322, and is movable in the connection axis direction by the length of the intermediate portion 324 in the connection axis direction.

[0174] The connection bushing part 300 has a clearance 330 between the inner surface of the cap nut 310 and the outer surface of the bushing 320. A face seal is formed between the bushing 320 and a member such as the tapping member 93 (see FIG. 8) connected via the bushing 320.

[0175] This configuration makes it possible to absorb radial errors in the bushing 320 while maintaining watertightness at each connection, such as the hot water supply connection 100, the cold water supply connection 101, the first water discharge connection 102, and the second water discharge connection 103. This makes it possible to prevent installation defects and improve installation efficiency.

[0176] <Additional Notes> (1) A plurality of water outlets; a faucet body that is fixed to a wall inside the bathroom and supplies hot and cold water to the plurality of water outlets; a plurality of hot water outlet pipes arranged outside the bathroom and connecting the plurality of water outlet portions and the faucet body, respectively; A water faucet device comprising: The faucet body is a hot and cold water mixing unit that mixes hot and cold water; a hot water connection portion connected to a hot water supply member disposed on the wall of the bathroom; a water supply connection portion connected to a water supply member disposed on the wall of the bathroom; A first water discharge connection part connected to a water discharge member arranged on the wall of the bathroom; a second water discharge connection portion connected to a water discharge member disposed on the wall of the bathroom; Equipped with A faucet device in which the hot water supply connection portion, the cold water supply connection portion, the first water discharge connection portion, and the second water discharge connection portion are integrally formed. (2) The faucet body is a hot water supply flow path formed integrally with the hot water supply connection portion and connecting the hot water supply connection portion and a temperature adjustment function portion that adjusts the temperature of hot water; a water supply flow path formed integrally with the water supply connection portion and connecting the water supply connection portion and the temperature adjustment function portion; a first hot water outlet flow path and a second hot water outlet flow path for supplying mixed hot water and cold water from the temperature adjustment function unit to the first hot water outlet connection part and the second hot water outlet connection part; Equipped with The faucet device according to (1), wherein at least a portion of each of the first hot water outlet flow path and the second hot water outlet flow path is formed integrally with the hot water supply flow path and the cold water supply flow path. (3) The faucet device described in (2) is such that the faucet body is formed by casting an integrally molded part including the hot water supply connection portion, the water supply connection portion, the first water outlet connection portion, the second water outlet connection portion, the hot water supply flow path and the water supply flow path, and at least a portion of the first hot water outlet flow path and the second hot water outlet flow path. (4) The faucet device according to (3), wherein the connection ends of the hot water supply connection portion, the cold water supply connection portion, the first water discharge connection portion and the second water discharge connection portion are formed by machining. (5) The hot water supply connection portion, the cold water supply connection portion, the first water discharge connection portion, and the second water discharge connection portion each have a cap nut and a bushing, The cap nut and the bushing have a clearance between an inner surface of the cap nut and an outer surface of the bushing, A faucet device described in any one of (1) to (4), wherein a surface seal is formed between the bush and a component that is placed on the wall of the bathroom and connected via the cap nut and the bush. (6) The faucet body is a hot water supply flow path formed integrally with the hot water supply connection portion and connecting the hot water supply connection portion and a temperature adjustment function portion that adjusts the temperature of hot water; a water supply flow path formed integrally with the water supply connection portion and connecting the water supply connection portion and the temperature adjustment function portion; a first hot water outlet flow path and a second hot water outlet flow path provided to supply mixed hot water and cold water from the temperature adjustment function unit to the first water outlet connection part and the second water outlet connection part, at least a part of each flow path being formed integrally with the hot water supply flow path and the cold water supply flow path; Equipped with The faucet body is a water discharge switching unit having an electromagnetic valve; a motor that drives the hot and cold water mixing unit; Equipped with A faucet device described in any one of (2) to (5), wherein the solenoid valve and motor are arranged in a removable position with an integrally molded part attached that includes the hot water supply connection portion, the cold water supply connection portion, the first water outlet connection portion, the second water outlet connection portion, the hot water supply flow path and the cold water supply flow path of the faucet body, and at least a portion of the first hot water outlet flow path and the second hot water outlet flow path. (7) The faucet device described in (6), wherein the solenoid valve and motor are positioned in front of an integrally molded part including the hot water supply connection portion, the water supply connection portion, the first water outlet connection portion, the second water outlet connection portion, the hot water supply flow path and the water supply flow path of the faucet body, and at least a portion of the first hot water outlet flow path and the second hot water outlet flow path.

[0177] Further advantages and modifications will readily occur to those skilled in the art. Therefore, the invention in its broader aspects is not limited to the specific details and representative embodiments shown and described above. Accordingly, various modifications may be made without departing from the spirit or scope of the general inventive concept as defined by the appended claims and their equivalents. [Explanation of symbols]

[0178] 1. Faucet equipment 2. Water outlet 3 Faucet body 30 Water outlet switching section 31 Solenoid valve (first solenoid valve) 32 Solenoid valve (second solenoid valve) 33 Solenoid valve (third solenoid valve) 34 Solenoid valve (4th solenoid valve) 35 Solenoid valve (5th solenoid valve) 50 Hot water mixing section 51 Motor 61 Motor 90 Connecting member 91 Hot water supply components 92 Water supply components 93 Tap material 94 Outlet pipe 110 Hot water connection 111 Water supply connection 112 First water outlet connection 113 Second water outlet connection 701 Hot water supply flow path 700 Water supply channel 121 First outlet channel 122 Second outlet channel 310 Cap nut 320 Bush 330 Clearance 1000 bathroom (bathroom unit) W B wall

Claims

1. A plurality of water outlets; a faucet body that is fixed to a wall inside the bathroom and supplies hot and cold water to the plurality of water outlets; a plurality of hot water outlet pipes arranged outside the bathroom and connecting the plurality of water outlet portions and the faucet body, respectively; A water faucet device comprising: The faucet body is a hot and cold water mixing unit that mixes hot and cold water; a hot water connection portion connected to a hot water supply member disposed on the wall of the bathroom; a water supply connection portion connected to a water supply member disposed on the wall of the bathroom; A first water discharge connection part connected to a water discharge member arranged on the wall of the bathroom; a second water discharge connection portion connected to a water discharge member disposed on the wall of the bathroom; Equipped with A faucet device in which the hot water connection portion, the cold water connection portion, the first water discharge connection portion, and the second water discharge connection portion are integrally formed.

2. The faucet body is a hot water supply flow path formed integrally with the hot water supply connection portion and connecting the hot water supply connection portion and a temperature adjustment function portion that adjusts the temperature of hot water; a water supply flow path formed integrally with the water supply connection portion and connecting the water supply connection portion and the temperature adjustment function portion; a first hot water outlet flow path and a second hot water outlet flow path for supplying mixed hot water and cold water from the temperature adjustment function unit to the first hot water outlet connection part and the second hot water outlet connection part; Equipped with The water faucet device according to claim 1 , wherein at least a portion of each of the first hot water outlet flow path and the second hot water outlet flow path is formed integrally with the hot water supply flow path and the cold water supply flow path.

3. The faucet device described in claim 2, wherein the faucet body is formed by casting an integrally molded part including the hot water supply connection portion, the water supply connection portion, the first water discharge connection portion, the second water discharge connection portion, the hot water supply flow path and the water supply flow path, and at least a portion of the first hot water outlet flow path and the second hot water outlet flow path.

4. The water faucet device according to claim 3 , wherein the connection ends of the hot water supply connection portion, the cold water supply connection portion, the first water discharge connection portion, and the second water discharge connection portion are formed by machining.

5. The hot water supply connection portion, the cold water supply connection portion, the first water discharge connection portion, and the second water discharge connection portion each have a cap nut and a bushing, The cap nut and the bushing have a clearance between an inner surface of the cap nut and an outer surface of the bushing, A faucet device as described in any one of claims 1 to 4, wherein a surface seal is formed between the bush and a component that is placed on the wall of the bathroom and connected via the cap nut and the bush.

6. The faucet body is a hot water supply flow path formed integrally with the hot water supply connection portion and connecting the hot water supply connection portion and a temperature adjustment function portion that adjusts the temperature of hot water; a water supply flow path formed integrally with the water supply connection portion and connecting the water supply connection portion and the temperature adjustment function portion; a first hot water outlet flow path and a second hot water outlet flow path provided to supply mixed hot water and cold water from the temperature adjustment function unit to the first water outlet connection part and the second water outlet connection part, at least a part of each flow path being formed integrally with the hot water supply flow path and the cold water supply flow path; Equipped with The faucet body is a water discharge switching unit having an electromagnetic valve; a motor that drives the hot and cold water mixing unit; Equipped with The faucet device described in claim 2, wherein the solenoid valve and motor are arranged in a removable position with an integrally molded part attached that includes the hot water supply connection portion, the water supply connection portion, the first water outlet connection portion, the second water outlet connection portion, the hot water supply flow path and the water supply flow path of the faucet body, and at least a portion of the first hot water outlet flow path and the second hot water outlet flow path.

7. The faucet device described in claim 6, wherein the solenoid valve and motor are arranged in front of an integrally molded part including the hot water supply connection portion, the water supply connection portion, the first water outlet connection portion, the second water outlet connection portion, the hot water supply flow path and the water supply flow path of the faucet body, and at least a portion of the first hot water outlet flow path and the second hot water outlet flow path.

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