JP7667941B2 - Faucet equipment - Google Patents

Description

The present invention relates to a water faucet device.

A water faucet device that includes a solenoid valve for switching between water discharge and stop, a controller for controlling the solenoid valve, a sensor that detects the user's "hand wave" to start the water discharge/stop switching operation, and a water faucet body that has a manual operation lever that can adjust the temperature and flow rate of the hot and cold water mixture is widely known (Patent Document 1).

Furthermore, a configuration that takes into consideration the discharge of high-temperature water is also known (Patent Document 2).

Publication No. 6-30920 JP 2004-190452 A

The inventors of this case have been thoroughly studying the positioning of an object detection sensor in a water faucet device (a so-called "water faucet device with a swing function") that includes a base end, a rotating part that is rotatably attached to the upper surface of the base end, extends forward and has a water outlet, a switching device that switches between stopping and releasing water flowing to the water outlet, and a control unit that controls the switching device depending on the detection state of an object detection sensor (a sensor that detects the user's "waving of the hand").

The above type of faucet device has a rotating part that can rotate relative to the base end, allowing the position of the water outlet to be rotated, providing high convenience.

The inventors initially considered placing the object detection sensor at the base end, which is unrelated to the position and orientation of the rotating part. However, a monitoring survey revealed that placing the object detection sensor on the rotating part, which is located above the base end, provides a better user experience than placing it on the base end, which is located relatively lower. (Users seem to want to avoid leaning forward as much as possible.)

The inventors next considered placing an object detection sensor on the upper surface of the back of the rotating part, which is relatively unrelated to the position and orientation of the rotating part. However, a monitoring survey revealed that if an object detection sensor is placed on the upper back of the rotating part, the rotating part may get wet when a wet hand is placed over the sensor, which users find unpleasant.

The inventors then considered placing an object detection sensor on the side of the rotating part. A monitoring survey showed that this configuration provided the best user experience.

On the other hand, to protect the harnesses and other items connected to the sensor, it is necessary to restrict the rotation of the rotating part to a desired angle range.

In general, by providing an angle restriction member on the rotating part, the rotatable angle of the rotating part can be restricted from a circumferential position where the angle restriction member abuts against the base end (the corresponding angle restriction cooperating part) when the rotating part rotates to one side, to a circumferential position where the angle restriction member abuts against the base end (the corresponding angle restriction cooperating part) when the rotating part rotates to the other side.

Here, the inventors have found that if the load received when the angle restriction member abuts against the base end (the corresponding angle restriction cooperating portion) is transmitted to the sensor (or the sensor holding member that holds the sensor), an undesirable positional shift of the sensor (particularly with respect to the sensor window) may occur.

The present invention was invented based on the above findings. The object of the present invention is to provide a faucet device (a so-called "faucet device with a swivel function") that is comfortable to use for the user and is less likely to cause sensor misalignment, and that is equipped with a base end, a rotating part that is rotatably attached to the upper surface of the base end, extends forward, and has a water outlet, a switching device that switches between stopping and releasing water flowing to the water outlet, and a control part that controls the switching device depending on the detection state of an object detection sensor (a sensor that detects the user's "waving of the hand").

The present invention is a water faucet device comprising a base end, a rotating part that is provided on the upper surface of the base end so as to be rotatable relative to the base end, extends forward, and has a water outlet, a sensor window provided on the side of the rotating part, an object detection sensor that is provided within the rotating part and is capable of detecting an object by sending and receiving a signal via the sensor window, a sensor holding member that is provided within the rotating part and holds the object detection sensor directly or indirectly within the rotating part, a switching device that switches between stopping and discharging water flowing to the water outlet, a control unit that controls the switching device depending on the detection state of the object detection sensor, and the rotating part. and an angle restriction member provided on the rotating part, the object detection sensor is disposed above the angle restriction member, the sensor holding member is connected to the rotating part and extends from above to below the angle restriction member, the angle restriction member restricts the rotatable angle of the rotating part from a circumferential position where the angle restriction member abuts against the base end by rotating the rotating part to one side to a circumferential position where the angle restriction member abuts against the base end by rotating the rotating part to the other side, and the angle restriction member does not come into contact with the sensor holding member.

According to the present invention, a faucet device that is comfortable to use for the user can be provided by activating an object detection sensor through a sensor window provided on the side of the rotating part.

In addition, according to the present invention, a layout is adopted in which the angle restriction member does not come into contact with the sensor holding member, so the load received when the angle restriction member abuts against the base end (the corresponding angle restriction cooperating part) is not directly transmitted to the sensor. Therefore, even in a faucet device in which the sensor holding member extends from above to below the angle restriction member and is therefore easily connected to the rotating part, undesired positional deviation of the sensor (particularly with respect to the sensor window) is unlikely to occur.

In the present invention, it is also preferable that the base end has an insertion portion located inside the rotating portion and extending upward from the angle restriction member, and the sensor holding member further has a cylindrical portion located between the rotating portion and the insertion portion.

As a result, even in a faucet device where the sensor holding member extends from above to below the angle restricting member and is therefore easily connected to the rotating part, the tubular part of the sensor holding member can be supported not only by the rotating part but also by the insertion part at the base end, preventing the sensor holding member from tilting against the user's intention, and making it less likely that undesired positional displacement of the sensor (particularly with respect to the sensor window) will occur.

It is preferable that the object detection sensor is a photoelectric sensor, and the photoelectric sensor has a light-emitting element that emits detection light, and a light-receiving element that receives reflected light of the detection light emitted by the light-emitting element.
Such photoelectric sensors can be made small (especially thin) and inexpensive, and are therefore effective in controlling the water discharge and stop of a water faucet device.
In this case, for example, the sensor holding member houses the light emitting element and the light receiving element, and has a light emitting opening that allows the detection light to pass through and a light receiving opening that allows the reflected light to pass through.

In the present invention, it is also preferable that a hose guide is attached to the base end, a hose connected to the rotating part is inserted through the hose guide to supply water to the water outlet of the rotating part, and a space is provided between the hose guide and the sensor holding member.

This allows for a layout that provides space between the hose guide and the sensor holding member, so the load applied to the hose guide by the hose as the rotating part rotates is not directly transmitted to the sensor, making it less likely that undesirable misalignment of the sensor (especially with respect to the sensor window) will occur.

According to the present invention, by activating the object detection sensor through a sensor window provided on the side of the rotating part, a faucet device that provides a good user experience can be provided. In addition, according to the present invention, a layout is adopted in which the angle restriction member does not come into contact with the sensor holding member, so the load received when the angle restriction member abuts against the base end (the corresponding angle restriction cooperating part) is not directly transmitted to the sensor, and undesired positional deviation of the sensor (particularly with respect to the sensor window) is unlikely to occur.

1 is a schematic front view showing a bathroom vanity unit on which a faucet device according to one embodiment of the present invention is installed. 2 is a vertical cross-sectional view of the rear position of the bowl portion of the bathroom vanity of FIG. 1. FIG. FIG. 2 is a perspective view of the base end of the water faucet device of FIG. 1 . FIG. 2 is a plan view of the base end of the water faucet device of FIG. 1. FIG. 2 is a front view of the base end of the water faucet device of FIG. 1 . FIG. 2 is a longitudinal cross-sectional view of the base end portion of the water faucet device of FIG. 1. FIG. 2 is a vertical cross-sectional view of the base end portion and the rotating portion of the water faucet device of FIG. 1. FIG. 2 is an exploded perspective view of a rotating portion of the water faucet device of FIG. 1 . FIG. 2 is a cross-sectional view of the rotating portion of the water faucet device of FIG. 1. 10 is a cross-sectional view of the rotating portion of FIG. 9 rotated to the left (light projection opening side); FIG.

(Overall configuration of bathroom vanity 100)
Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. Fig. 1 is a schematic front view of a bathroom vanity 100 on which a water faucet device 1 according to an embodiment of the present invention is installed, and Fig. 2 is a vertical cross-sectional view of the bathroom vanity 100 of Fig. 1 at a rear position of a bowl portion 102.

The faucet device 1 of this embodiment is a hot and cold water mixing faucet that can adjust the flow and temperature of hot and cold water. As shown in Figures 1 and 2, a hot water inlet 2 and a cold water inlet 3 are provided on the lower wall surface 103 of the washbasin vanity unit 100. The hot water inlet 2 is connected to a hot and cold water mixing valve 21 (see Figure 6 described later) in the base end portion 10 of the faucet device 1 via a hot water supply solenoid valve 52 and a hot water supply pipe 22, and the cold water inlet 3 is connected to the same hot and cold water mixing valve 21 via a water supply solenoid valve 53 and a water supply pipe 23.

The hot and cold water mixing valve 21 is of a known configuration, and is capable of controlling (operating) flow and temperature adjustments using a single lever cartridge. Specifically, hot water is supplied through a hot water supply pipe 22, and cold water is supplied through a water supply pipe 23. The water is mixed to the desired flow rate and temperature depending on the position and orientation of the single lever cartridge, and then discharged through a water outlet pipe 24 and a hose 25.

The hose 25 is connected to the water outlet pipe 24, and passes through a hose spacer guide 26 fixed to the water outlet pipe 24, thereby restricting its movement in the space below the washbasin vanity unit 100. In addition, a stopper 27 is attached to the hose 25 below the hose spacer guide 26, restricting the amount that the hose 25 can be pulled out.

The faucet device 1 of this embodiment is positioned with a gap of about 4 cm from the upper wall surface 101 of the bathroom vanity unit 100.

The faucet device 1 of this embodiment includes a substantially U-shaped base end 10 with a right-side (one-side) protrusion, a flow and temperature control lever 20 (flow and temperature control control section) provided on the right-side (one-side) side of the right-side (one-side) protrusion of the base end 10, and a rotating section 30 (including a pull-out member 40, described later) provided on the upper surface side of the base end 10 so as to be rotatable relative to the base end 10.

(Base end portion 10 of faucet device 1)
The faucet device 1 is fixed to the washbasin vanity unit 100 at its base end portion 10 .

Figure 3 is an oblique view of the base end 10 of the faucet device 1 of this embodiment, Figure 4 is a plan view of the base end 10 of the faucet device 1 of this embodiment, Figure 5 is a front view of the base end 10 of the faucet device 1 of this embodiment, and Figure 6 is a vertical cross-sectional view of the base end 10 of the faucet device 1 of this embodiment.

As shown in Figures 3 to 6, the base end 10 is a hollow member that is roughly U-shaped with a protruding portion on the right side (one side), and has a small diameter cylindrical portion 13 on the upper surface side. The sensor holding member 32 (see Figures 7 and 8), which will be described later, is fitted into the small diameter cylindrical portion 13.

As shown in FIG. 4 in particular, the small diameter tube portion 13 is provided with a substantially cylindrical hose guide hole 15. The central axis of the hose guide hole 15 is shifted to the left of the central axes of the small diameter tube portion 13 and the base end portion 10. A cylindrical hose guide 17 (see FIG. 3 and FIG. 6) is attached to the hose guide hole 15, and the hose 25 is inserted through the hose guide 17. A space is provided between the hose guide 17 and the sensor holding member 32. In other words, the hose guide 17 is positioned so that it does not come into contact with the sensor holding member 32 (does not directly transmit a load) at least during normal use of the faucet device 1.

A roughly arc-shaped harness guide hole 14 is provided adjacent to the right side of the hose guide hole 15. This harness guide hole 14 prevents undesired load from being applied to the harness 33h (which extends from the photoelectric sensor 33, described below, through the inside of the faucet device 1, and reaches the controller box 55 (see Figures 1 and 2)) inserted into the rotating part 30 when the rotating part 30 is rotated.

In addition, by combining the hose guide hole 15 and harness guide hole 14 in the above-mentioned configuration, both guide holes 15, 14 can be arranged in a minimal layout, resulting in excellent design.

The inner diameter of the hose guide hole 15 is preferably smaller than the sum of the outer diameter of the hose guide 17 and the outer diameter of the harness 33h. This effectively prevents misassembly during installation and maintenance of the faucet device 1.

On the other hand, as shown in FIG. 6, a hot and cold water mixing valve 21 is housed inside the protruding portion on the right side (one side) of the base end portion 10.

(Flow and temperature adjustment operation lever 20 (flow and temperature adjustment operation section) of the faucet device 1)
The hot and cold water mixing valve 21 is a single-lever cartridge valve, and the single lever portion thereof serves as a flow and temperature adjustment control lever 20 (flow and temperature adjustment control section).

(Rotating portion 30 of faucet device 1)
Figure 7 is a longitudinal cross-sectional view of the base end portion 10 and rotating portion 30 of the faucet device 1 of this embodiment, Figure 8 is an exploded oblique view of the rotating portion 30 of the faucet device 1 of this embodiment, Figure 9 is a transverse cross-sectional view of the rotating portion 30 of the faucet device 1 of this embodiment, and Figure 10 is a transverse cross-sectional view of the rotating portion 30 of Figure 9 rotated to the left (towards the light projection opening 32a).

As shown in Figures 7 and 8, the sensor holding member 32 (made of POM) of the rotating part 30 is removably attached to the outer member 31 (made of brass casting) of the rotating part 30. Specifically, it is removably attached from the lower side via three fixing screws 35.

As shown in Figures 8 to 10, a horizontally elongated sensor window 34 having a substantially rectangular shape is provided in the upper left portion of the outer casing member 31. The sensor window 34 faces the light-emitter opening 32a and the light-receiving opening 32b provided at the tip of the sensor fitting portion 32f of the sensor holding member 32.

As shown in Figures 9 and 10, the light-projecting opening 32a is formed as an oblique cut opening surface of the light-projecting side tunnel 32c, which has a substantially rectangular prism shape, and similarly, the light-receiving opening 32b is formed as an oblique cut opening surface of the light-receiving side tunnel 32d, which has a substantially rectangular prism shape.

As shown in Figures 8 to 10, the photoelectric sensor 33 is fitted and held in the sensor fitting portion 32f of the sensor holding member 32.

As shown in Figures 9 and 10, the photoelectric sensor 33 has a light-emitting element 33a that emits detection light, and a light-receiving element 33b that receives the reflected light of the detection light emitted by the light-emitting element 33a. The light-receiving element 33b is disposed behind the light-emitting element 33a.

When the rotating unit 30 is in the initial setting position (i.e., extended forward as shown in FIG. 9), the light-projecting element 33a projects detection light diagonally forward (for example, 20 degrees to 60 degrees forward from the sideways direction, in this embodiment, 30 degrees forward from the sideways direction). The detection light projected from the light-projecting element 33a passes through the light-projecting side tunnel 32c and the light-projecting opening 32a and transmits through the sensor window 34, and the reflected light of the detection light transmits through the sensor window 34, passes through the light-receiving opening 32b and the light-receiving side tunnel 32d, and reaches the light-receiving element 33b.

This significantly reduces the risk of the detection light being reflected by the upper wall surface 101 of the bathroom vanity unit 100, which may be present behind the rotating unit 30, causing a false detection by the photoelectric sensor 33 when the rotating unit 30 is rotated toward the light projection opening 32a (left side). Figure 10 shows such a state. In Figure 10, the rotating unit 30 is rotated toward the light projection opening 32a (left side) by approximately 40 degrees, but there is an extremely small risk that the detection light (indicated by an arrow in Figure 10) projected from the light projecting element 33a will be reflected by the upper wall surface 101 of the bathroom vanity unit 100, causing a false detection by the photoelectric sensor 33.

In addition, the rear end of the light-projecting opening 32a is located forward of the light-projecting element 33a when the rotating unit 30 is in the initial setting position (i.e., extended forward as shown in FIG. 9). As a result, the detection light projected from the light-projecting element 33a and transmitted through the light-projecting opening 32a travels forward at least θ degrees (see FIG. 9) in the lateral direction. In other words, (a part of) the detection light projected (leaked) from the light-projecting element 33a through the rear end of the light-projecting opening 32a does not travel rearward (toward the light-receiving opening 32b) in the lateral direction. This significantly reduces the risk that (a part of) the detection light will repeatedly refract inside the sensor window 34, etc., enter the light-receiving opening 32b, reach the light-receiving element 33b, and cause a false detection.

Returning to FIG. 8, the sensor fitting portion 32f of the sensor holding member 32 is located on the upper end side of the sensor holding member 32. A cylindrical portion 32h that rotatably fits with the small diameter cylindrical portion 13 of the base end portion 10 is provided on the lower end side of the sensor holding member 32. The sensor fitting portion 32f and the cylindrical portion 32h are connected by a curved guide portion 32g that guides the hose 25 to change its direction by approximately 90 degrees.

7, the screw 36 (an example of an angle restriction member) is fixed to the outer shell member 31 of the rotating part 30 so as to pass through the through hole of the cylindrical part 32h of the sensor holding member 32 (the through hole is larger in diameter than the screw 36 so that the screw 36 and the cylindrical part 32h do not come into contact). The screw 36 is movable in the circumferential direction within the circumferential groove 13g provided in the small diameter cylindrical part 13 of the base end part 10, that is, the rotatable angle of the rotating part 30 is defined as the circumferential angle of the screw 36 that can move within the circumferential groove 13g (the range defined by both the left and right ends of the circumferential groove 13g (an example of an angle restriction cooperating part) is the rotatable angle range). For example, the range from a rotation position of about 40 degrees to the left (see FIG. 10) to a rotation position of about 80 degrees to the right can be defined as the rotatable angle range. In addition, an O-ring 37 is provided below the screw 36, and an anti-rattle ring 38 is provided above the screw 36 to prevent the outer casing member 31 from rattling.

The photoelectric sensor 33 is positioned above the screw 36 (an example of an angle restriction member), and the sensor holding member 32 is connected to the rotating part 30 and extends from above the screw 36 to below it. The base end 10 also has a small diameter tube portion 13 (an example of an insertion portion) located inside the rotating part 30 and extending above the screw 36, and the sensor holding member 32 further has a tubular portion 32h (a cylindrical portion in this embodiment) located between the rotating part 30 and the small diameter tube portion 13.

In this embodiment, a pull-out member 40 is provided on the front side (front surface) of the outer casing member 31 of the rotating part 30. The pull-out member 40 is connected to the hose 25 and can move toward or away from the outer casing member 31. The pull-out member 40 is also a part of the rotating part 30, and the water outlet 41 is provided in the pull-out member 40.

(Control of the faucet device 1)
The flow and temperature adjustments are controlled by the user manually operating the flow and temperature adjustment lever 20 .

The switching from water stop to water discharge is controlled by the photoelectric sensor 33 detecting the user's "hand wave". Specifically, the detection signal of the photoelectric sensor 33 is transmitted to the controller box 55 (controller) via the harness 33h, and a predetermined drive signal is transmitted from the controller box 55 to the hot water supply solenoid valve 52 and the water supply solenoid valve 53 (an example of a switching device) via a harness (not shown) (see Figures 1 and 2). In this embodiment, from the viewpoint of preventing the user from getting burned, the water supply solenoid valve 53 opens a predetermined time before the hot water supply solenoid valve 52 opens.

The switch from water flowing to water stopping may be controlled by the photoelectric sensor 33 detecting the user's "hand wave" again, or the water may be automatically stopped after a predetermined time or amount of water flow.

Although not shown in the figure, a commercial AC power source is connected to the controller box 55. The harness 33h that connects the photoelectric sensor 33 to the controller box 55 includes a signal line and a power supply line. Similarly, the harness (not shown) that connects the photoelectric sensor 33 to the hot water supply solenoid valve 52 and the cold water supply solenoid valve 53 also includes a signal line and a power supply line.

(Actions and Effects of the Faucet Device 1)
According to the faucet device 1 of this embodiment configured as described above, the photoelectric sensor 33 (object detection sensor) is activated through the sensor window 34 provided on the left side (opposite the flow and temperature control lever 20) of the rotating part 30, providing a good usability for the user. In particular, the risk of erroneous detection by the photoelectric sensor 33 when operating the flow and temperature control lever 20 can be significantly reduced.

The photoelectric sensor 33 used in the faucet device 1 of this embodiment is small (especially thin) and low-cost, making it effective in controlling the water discharge and stop of the faucet device 1.

In addition, in the faucet device 1 of this embodiment, the light-projecting element 33a projects detection light diagonally forward (30 degrees forward from the side in this embodiment) when the rotating part 30 is in the initial setting position (i.e., extended forward as shown in FIG. 9). Therefore, even when the rotating part 30 is rotated toward the light-projecting opening 32a (see FIG. 10), the risk of the detection light being reflected by the upper wall surface 101 of the washbasin vanity unit 100, which may be present behind the rotating part 30, and causing a false detection by the photoelectric sensor 33 can be significantly reduced (see FIG. 10).

Furthermore, in the faucet device 1 of this embodiment, the light receiving element 33b is disposed behind the light projecting element 33a. This also reduces the risk of the light receiving element 33b receiving undesired reflected light, further reducing the possibility of erroneous detection by the photoelectric sensor 33.

Furthermore, in the faucet device 1 of this embodiment, a sensor holding member 32 is provided that houses the light-projecting element 33a and the light-receiving element 33b, while having a light-projecting opening 32a that allows the transmission of detection light and a light-receiving opening 32b that allows the transmission of reflected light, and the rear end of the light-projecting opening 32a is located forward of the light-projecting element 33a when the rotating part 30 is in the initial setting position (i.e., in the state where it is extended to the front side as shown in FIG. 9). As a result, (a part of) the detection light projected (leaked) from the light-projecting element 33a through the rear end of the light-projecting opening 32a does not proceed to the rear side (toward the light-receiving opening 32b) in the lateral direction, so that (a part of) the detection light is repeatedly refracted inside the sensor window 34, etc., enters the light-receiving opening 32b, reaches the light-receiving element 33b, and causes a false detection. This significantly reduces the risk that this light will cause a false detection.

In addition, according to the water faucet device 1 of the present embodiment configured as described above, the rotating part 30 is provided with a screw 36 (an example of an angle restriction member), and the screw 36 restricts the rotatable angle of the rotating part 30 from a circumferential position where the screw 36 abuts against one side end of the circumferential groove 13g of the base end 10 (an example of an angle restriction cooperating part) by rotating the rotating part 30 to a circumferential position where the screw 36 abuts against the other side end of the circumferential groove 13g of the base end 10 (an example of an angle restriction cooperating part) by rotating the rotating part 30 to the other side, while the screw 36 does not come into contact with the sensor holding member 32 (it penetrates a large through hole provided in the cylindrical part 32h of the sensor holding member 32). In other words, a layout is adopted in which the screw 36 does not come into contact with the sensor holding member 32. Therefore, the load received when the screw 36 abuts against the base end 10 (the corresponding angle restriction cooperating part) is not directly transmitted to the sensor holding member 32 and thus to the photoelectric sensor 33, making it difficult for undesired positional deviation of the photoelectric sensor 33 (especially with respect to the sensor window 34) to occur.

In addition, according to the water faucet device 1 of this embodiment configured as described above, a hose guide 17 is attached inside the base end 10, and a hose 25 connected to the rotating part 30 (pull-out member 40) is inserted through the hose guide 17 to supply water to the water outlet 41, while the hose guide 17 does not come into contact with the sensor holding member 32. Therefore, the load applied to the hose guide 17 by the hose 25 as the rotating part 30 rotates is not directly transmitted to the sensor holding member 32 and thus to the photoelectric sensor 33, and undesired positional deviation of the photoelectric sensor 33 (particularly with respect to the sensor window 34) is unlikely to occur.

Furthermore, in the water faucet device 1 of this embodiment, it is preferable that a gap is formed between (at least a part of) the cylindrical portion 32h of the sensor holding member 32 and the rotating portion 30. Due to the presence of such a gap, even if water enters the rotating portion 30, the water is easily discharged. In addition, due to the presence of such a gap, when the photoelectric sensor 33 and the sensor holding member 32 are attached from below the rotating portion 30 toward the inside of the rotating portion 30, the photoelectric sensor 33 and the sensor holding member 32 are easily inserted into the inside of the rotating portion 30. Furthermore, since the cylindrical portion 32h of the sensor holding member 32 is disposed between the rotating portion 30 and the small diameter cylindrical portion 13 (an example of an insertion portion), even if the cross-sectional shape of the inner circumferential surface of the rotating portion 30 is not substantially circular, the cylindrical portion 32h and the small diameter cylindrical portion 13 can ensure the rotation performance between the rotating portion 30 and the sensor holding member 32.

In addition, as the object detection sensor (reflective object detection sensor), instead of the photoelectric sensor 33 that uses visible light or infrared light, a microwave sensor that uses electromagnetic waves such as microwaves, or an ultrasonic sensor that uses ultrasonic waves may also be used.

1 Faucet device 2 Hot water supply port 3 Water supply port 10 Base end portion 13 Small diameter cylindrical portion 13g Circumferential groove 14 Harness guide hole 15 Hose guide hole 17 Hose guide 20 Temperature control operation lever 21 Hot and cold water mixing valve 22 Hot water supply pipe 23 Water supply pipe 24 Water outlet pipe 25 Hose 26 Hose spacer guide 27 Stopper 30 Rotating portion 31 Outer member 32 Sensor holding member 32a Light projecting opening 32b Light receiving opening 32c Light projecting side tunnel 32d Light receiving side tunnel 32f Sensor fitting portion 32g Curved guide portion 32h Cylindrical portion 33 Photoelectric sensor 33a Light projecting element 33b Light receiving element 33h Harness 34 Sensor window 35 Fixing screw 36 Screw 37 O-ring 38 Rattle prevention ring 40 Pull-out member 41 Water outlet 52 Hot water supply solenoid valve 53 Water supply solenoid valve 55 Controller box 100 Bathroom vanity 101 Upper wall surface 102 Bowl portion 103 Lower wall surface

Claims (5)

A water faucet device,
A base end portion; a rotating portion provided on an upper surface side of the base end portion so as to be rotatable with respect to the base end portion, extending forward and having a water outlet;
A sensor window provided on a side surface of the rotating portion;
an object detection sensor provided in the rotating portion and capable of detecting an object by transmitting and receiving a signal through the sensor window;
a sensor holding member provided in the rotating part and configured to directly or indirectly hold the object detection sensor in the rotating part;
A switching device for switching between stopping and discharging water flowing to the water outlet;
A control unit that controls the switching device in response to a detection state of the object detection sensor;
An angle restriction member provided on the rotating portion;
Equipped with
the object detection sensor is disposed above the angle restriction member,
the sensor holding member is connected to the rotating portion and extends from above to below the angle restriction member,
the angle restriction member restricts a rotatable angle of the rotating unit from a circumferential position at which the angle restriction member abuts against the base end portion as the rotating unit rotates toward one side to a circumferential position at which the angle restriction member abuts against the base end portion as the rotating unit rotates toward the other side,
A water faucet device characterized in that the angle restriction member does not come into contact with the sensor holding member. the base end portion has an insertion portion located inside the rotating portion and extending upward beyond the angle restriction member,
The water faucet device according to claim 1 , wherein the sensor holding member further comprises a cylindrical portion located between the rotating portion and the insertion portion. the object detection sensor is a photoelectric sensor,
The photoelectric sensor includes:
a light-projecting element that projects detection light;
a light receiving element that receives reflected light of the detection light projected by the light projecting element;
The water faucet device according to claim 1 or 2, further comprising: The faucet device described in claim 3, characterized in that the sensor holding member houses the light-emitting element and the light-receiving element, while having a light-emitting opening that allows the detection light to pass through and a light-receiving opening that allows the reflected light to pass through. A hose guide is mounted within the base end,
A hose connected to the rotating part for supplying water to the water outlet of the rotating part is inserted through the hose guide,
5. The water faucet device according to claim 1, wherein a space is provided between the hose guide and the sensor holding member.

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