TWI724070B - Toilet seat device - Google Patents

Abstract

The invention provides a toilet seat device, which can improve the detection accuracy of a detected object. Specifically, the toilet seat device of the present invention is characterized by comprising: a main body part provided on the upper rear part of the toilet; a toilet seat provided to be rotatable with respect to the main body part; and a radio wave sensor provided in the main body part Inside, the human body is detected through radio waves. When the toilet seat is lowered, the toilet seat covers the radio wave sensor, and the radio waves are radiated toward the front of the radio wave sensor through the toilet seat.

Description

Toilet seat device

The aspect of the present invention generally relates to a toilet seat device.

In the toilet seat device used on the toilet, a radio wave sensor for detecting the human body and other objects to be detected can be provided. At this time, a radio wave sensor can be installed inside the main body of the toilet seat device installed on the upper part of the back of the toilet.

Patent Document 1: Japanese Patent Application Publication No. 2003-102654

When radio waves are radiated from a radio wave sensor installed inside the main body, the radio waves propagate forward through the toilet seat or the like. At this time, the following situation may occur. The radio waves are refracted by the toilet seat, etc., and the advancing direction of the radio waves changes, and the detection accuracy of the detected object is reduced.

The present invention is completed based on the recognition of such problems, and its purpose is to provide a toilet seat device that can improve the detection accuracy of the detected object.

The first invention is a toilet seat device, which is characterized by comprising: a main body provided on the upper rear of the toilet; a toilet seat provided to be rotatable with respect to the main body; and a radio wave sensor provided on the main body. Inside, the human body is detected through radio waves. When the toilet seat is lowered, the toilet seat covers the radio wave sensor, and the radio waves are radiated toward the front of the radio wave sensor through the toilet seat.

According to this toilet seat device, since the toilet seat covers the radio wave sensor, radio waves radiated from the radio wave sensor are radiated toward the front of the radio wave sensor without passing through the rear end of the curved toilet seat. Therefore, it is possible to suppress the decrease in the intensity of the radio wave in front of the radio wave sensor, and the radio wave sensor can detect the detected object with high accuracy.

The toilet seat device of the second invention is the same as in the first invention, wherein the thickness of the portion through which the radio waves pass is equal to the thickness of the toilet seat when the toilet seat is lowered.

According to this toilet seat device, it is possible to suppress a change in the advancing direction of radio waves before and after injection into the toilet seat. Therefore, it is possible to further suppress the decrease of the radio wave intensity in front of the radio wave sensor, and the radio wave sensor can detect the detected object with higher accuracy.

The toilet seat device of the third invention is the same as the first or second invention, wherein, in a state where the toilet seat is lowered, the radio wave sensor is located above the rear end of the opening of the toilet seat.

According to this toilet seat device, it is possible to move from the radio wave sensor to Radio waves are radiated further down. Therefore, short children, old people, etc. can be detected with higher accuracy.

The toilet seat device of the fourth invention is any one of the first to third inventions, and further includes a heating mechanism including metal provided inside the toilet seat, and when the toilet seat is lowered, the The radio wave sensor is located above the heating mechanism.

According to this toilet seat device, it is possible to radiate radio waves further downward from the radio wave sensor. Therefore, short children, old people, etc. can be detected with higher accuracy.

The toilet seat device of the fifth invention is any one of the first to fourth inventions, and further includes a toilet seat rotating portion that supports the toilet seat shaft to the body portion, and the toilet seat rotating portion is provided in The aforementioned radio wave sensor is further behind.

According to this toilet seat device, when the toilet seat is lifted, there is no toilet seat in front of the radio wave sensor. Therefore, in a state where the toilet seat is lifted, the refraction and attenuation of radio waves caused by the toilet seat can be suppressed, and the detected object can be detected with higher accuracy.

The toilet seat device of the sixth invention is the same as that of the fifth invention, which further includes a first toilet seat reinforcement part, which is provided inside the toilet seat above the body part and located in front of the radio wave sensor. When the upper plate of the seat deforms downward, the upper plate is supported from below.

According to this toilet seat device, deformation of the toilet seat can be suppressed, and the possibility of damage to the toilet seat can be reduced.

The toilet seat device of the seventh invention is the same as the sixth invention, and further includes a second toilet seat reinforcement part, which is provided inside the toilet seat above the main body part, above and behind the radio wave sensor, and The upper plate of the toilet seat is in contact with each other.

According to this toilet seat device, when the toilet seat is rotated through the toilet seat rotating portion, the possibility of damage to the toilet seat can be reduced, and the rotation of the toilet seat can be made more stable. Therefore, false detection of the toilet seat as a human body can be suppressed, and the performance of the radio wave sensor can also be stabilized.

The toilet seat device of the eighth invention is the seventh invention, wherein the radio wave sensor radiates the radio wave toward the front through an area between the first toilet seat reinforcement part and the second toilet seat reinforcement part.

According to this toilet seat device, even when the first toilet seat reinforcement part and the second toilet seat reinforcement part are provided, it is possible to prevent the radio wave intensity from falling in front of the radio wave sensor, and it is possible to detect the detected object with high accuracy. .

The toilet seat device of the ninth invention is any one of the fifth to eighth inventions, and further includes: a toilet lid; a toilet lid rotating portion for supporting the toilet lid shaft on the main body; and a toilet lid reinforcement Part, connected to the toilet cover rotation part and the toilet cover, the toilet cover rotation part is provided behind the radio wave sensor, and the toilet cover reinforcement part extends from the toilet cover rotation part over the radio wave sensor Set up.

According to this toilet seat device, when the toilet lid is rotated through the toilet lid rotating portion, the possibility of damage to the toilet lid can be reduced. In addition, can Enough to make the rotation of the toilet lid more stable. Therefore, false detection of the toilet lid as a human body can be suppressed, and the performance of the radio wave sensor can also be stabilized.

The toilet seat device of the tenth invention is any one of the first to eighth inventions, and further includes a toilet lid having a light source unit, and when the toilet lid is closed, at least one of the radio wave sensor A part is located above the aforementioned light source unit.

According to this toilet seat device, it is possible to radiate radio waves further downward from the radio wave sensor. Therefore, short children, old people, etc. can be detected with higher accuracy.

According to the aspect of the present invention, a toilet seat device can be provided, which can improve the detection accuracy of the detected object.

10, 10a, 10b‧‧‧Toilet seat device

11‧‧‧Main body

12‧‧‧Toilet seat

12a‧‧‧Upper board

12b‧‧‧Lower board

12c‧‧‧Heating mechanism

12d、12e‧‧‧Toilet seat reinforcement

13‧‧‧Toilet cover

13a‧‧‧Upper board

13b‧‧‧Lower board

13c‧‧‧Window Department

13d‧‧‧Light source unit

13e‧‧‧Toilet lid reinforcement

14‧‧‧Toilet

14a‧‧‧Pen

20‧‧‧Control Department

21a‧‧‧Solenoid valve

21b‧‧‧Heater

21c‧‧‧Drainage Department

22‧‧‧Waterway

23‧‧‧Radio wave sensor

24a‧‧‧Fan for drying

24b‧‧‧Drying channel

25a‧‧‧Deodorizing fan

25b‧‧‧Deodorizing channel

26a‧‧‧Upper shell

26b‧‧‧Lower shell

27‧‧‧Nozzle

28‧‧‧Toilet seat rotating part

29‧‧‧Toilet cover rotating part

100‧‧‧Flushing toilet device

EP‧‧‧Back end

OP‧‧‧Open

TW‧‧‧Radio wave

Figure 1 is a perspective view of the flush toilet device of the embodiment.

Fig. 2 is an enlarged cross-sectional view of the vicinity of the toilet seat device of the flush toilet device of the embodiment.

Fig. 3 is a plan view showing the internal structure of the main body of the embodiment.

Fig. 4 is a cross-sectional view showing a toilet seat device of a reference example.

Fig. 5 is an enlarged cross-sectional view of the vicinity of the toilet seat device of the flush toilet device according to the first modification of the embodiment.

Fig. 6 is an enlarged cross-sectional view of the vicinity of the toilet seat device of the flush toilet device according to the second modification of the embodiment.

Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, in each drawing, the same components are denoted by the same reference numerals, and detailed descriptions are appropriately omitted. In addition, in the specification of this application, in order to explain the invention, although "above", "below", "front", "rear", and "left side" are used, these are used by a user sitting on a toilet seat. The observations are benchmarks.

Figure 1 is a perspective view of the flush toilet device of the embodiment. Specifically, FIG. 1(a) shows a state in which the toilet seat 12 is lowered and the toilet lid 13 is closed. Figure 1(b) shows a state where the toilet seat 12 is lowered and the toilet lid 13 is opened. Figure 1(c) shows a state where the toilet seat 12 is lifted and the toilet lid 13 is opened.

Fig. 2 is an enlarged cross-sectional view of the vicinity of the toilet seat device of the flush toilet device of the embodiment.

Fig. 3 is a plan view showing the internal structure of the main body of the embodiment.

Moreover, in FIG. 3, in order to show the internal structure of the main body part 11, a part of the shell 26, the toilet seat 12, and the toilet cover 13 are abbreviate|omitted.

As shown in FIGS. 1 and 2, the flush toilet device 100 includes a toilet seat device 10 and a toilet 14. The toilet seat device 10 is placed on the toilet 14. The toilet seat device 10 includes a main body 11, a toilet seat 12, a toilet cover 13, a toilet seat rotation part 28, and a toilet cover rotation part 29.

The main body 11 is provided on the upper rear part of the toilet 14. Ontology The portion 11 is provided with a toilet seat rotating portion 28 and a toilet lid rotating portion 29. The toilet seat 12 is pivotally supported to the main body 11 through the toilet seat rotating part 28. In addition, the toilet lid 13 is pivotally supported to the main body 11 through the toilet lid rotating portion 29. By driving the toilet seat rotating part 28 and the toilet cover rotating part 29, the toilet seat 12 performs the up and down movement and the toilet cover 13 performs the opening and closing operation.

As shown in FIG. 1(a), in a state where the toilet lid 13 is closed, the toilet seat 12 is completely covered by the toilet lid 13. Thereby, the aesthetics of the flush toilet device 100 when not in use can be improved. As shown in Fig. 1(b) and Fig. 1(c), the toilet seat 12 has an opening OP at the front and extends rearward to cover the upper shell 26a.

As shown in FIG. 2, the main body 11 includes an upper case 26a and a lower case 26b. In addition, as shown in FIG. 3, the main body portion 11 includes a control portion 20, a solenoid valve 21a, a heater 21b, a drainage portion 21c, and a water supply channel 22 provided in a space enclosed by the upper shell 26a and the lower shell 26b. , Radio wave sensor 23, drying fan 24a, drying duct 24b, deodorizing fan 25a, deodorizing duct 25b, and nozzle 27.

In addition, in the flush toilet device 100 shown in FIGS. 1 to 3, the lower shell 26 b is provided inside the toilet 14. In addition, the components of the main body 11 are arranged inside the lower case 26b, and these components are covered by the upper case 26a.

The nozzle 27 is provided in the lateral center of the toilet seat device 10. The nozzle 27 is configured to be able to advance and retreat with respect to the bowl 14 a of the toilet 14. The nozzle 27 can spit washing water toward the part of the user seated on the toilet seat 12 in a state in which it extends to the bowl portion 14a.

The water supply channel 22 is connected to a water supply source outside the flush toilet device 100 and supplies washing water to the nozzle 27. The water supply channel 22 is provided with a solenoid valve 21a, a heater 21b, and a drain 21c from the upstream side. The solenoid valve 21a controls the inflow of the washing water from the upstream side into the water supply channel 22. The heater 21b heats the washing water supplied to the water supply channel 22 to a temperature suitable for local washing. The drainage part 21c has a valve which is not shown in figure, and is comprised so that the washing water supplied to the water supply channel 22 can flow to the basin part 14a.

The deodorizing fan 25a introduces the odor inside the toilet 14 through the deodorizing passage 25b, and sends the odor to the outside of the toilet 14 after passing through the deodorizing material. The drying fan 24a takes in air from the outside of the toilet 14, heats the air with a heater (not shown), and then sends warm air to the user's part through the drying duct 24b.

The radio wave sensor 23 is installed at a position slightly deviated to the left from the center of the toilet seat device 10. In addition, as shown in FIG. 2, the radio wave sensor 23 is located above the nozzle 27 and is installed so that no other members exist between the upper case 26 a and the radio wave sensor 23.

The radio wave sensor 23 radiates radio waves toward the front of the flush toilet device 100, and detects objects such as a human body that have entered the detection area. In addition, the radio wave sensor 23 can detect the movement (speed, direction, etc.) of the object using the Doppler effect or the like. The radio wave sensor 23 is, for example, a microwave sensor using a microwave frequency band. Since microwaves can penetrate materials with relatively low permittivity such as wood, resin, and pottery, the radio wave sensor 23 can detect the human body through the upper shell 26a, the toilet seat 12, and the toilet lid 13, and the human body can be detected. The state of movement (speed).

In addition, microwaves are one of the classifications based on the frequency of radio waves. Generally refers to radio waves (electromagnetic waves) with a wavelength of 100 microns to 1 meter and a frequency of 300 MHz to 3 terahertz. The radio waves in this range include decimeter waves (UHF), centimeter waves (SHF), millimeter waves (EHF), and submillimeter waves.

The control unit 20 controls the operation of each component included in the flush toilet device 100. In addition, the control unit 20 performs, for example, opening and closing of the toilet lid 13, heating of the toilet seat 12, and washing of the bowl portion 14a based on the detection result of the user by the radio wave sensor 23.

Here, the toilet seat device 10 of this embodiment will be described in more detail with reference to FIG. 2 again.

The toilet seat 12 has an upper plate 12a and a lower plate 12b. A hollow structure is formed between the upper plate 12a and the lower plate 12b, and a heating mechanism 12c is provided in the space.

The upper plate 12a and the lower plate 12b extend in the front-rear direction along the upper surface of the toilet 14 and the upper surface of the upper shell 26a when the toilet seat 12 is lowered, and are connected to the toilet seat rotating part provided behind the radio wave sensor 23 28. Therefore, in the state where the toilet seat 12 is lowered, the radio wave sensor 23 is covered by the upper plate 12a and the lower plate 12b. In other words, a part of the upper plate 12 a and a part of the lower plate 12 b are located diagonally above and directly above the radio wave sensor 23. Therefore, the radio wave TW radiated from the radio wave sensor 23 passes through the upper plate 12a and the lower plate 12b and spreads toward the front of the flush toilet device 100.

The thickness of each of the upper plate 12a and the lower plate 12b is the same in the vicinity of the radio wave sensor 23 (that is, the part through which the radio wave TW radiated from the radio wave sensor 23 mainly transmits). In other words, in the vicinity of the radio wave sensor 23, The upper surface of the upper plate 12a is parallel to the lower surface, and the upper surface of the lower plate 12b is parallel to the lower surface. More specifically, in the area through which radio waves of 30% or more of the maximum radio wave intensity among radio waves TW radiated from the radio wave sensor 23 transmit, the thicknesses of the upper plate 12a and the lower plate 12b are the same. That is, in the description of the present embodiment, the equal thickness of the portion through which the radio wave TW is transmitted means that the upper plate 12a and the lower plate 12b have the same thickness in the area through which radio waves of 30% or more of the maximum radio wave intensity are transmitted.

The heating mechanism 12c is, for example, an induction heating coil containing metal. When the heating mechanism 12c is an induction heating coil, the upper plate 12a includes a heating element with high magnetic permeability such as SUS430. In the example shown in FIG. 2, a plurality of induction heating coils are provided, and each of the induction heating coils is arranged in a ring shape so as to surround the opening OP. When a high-frequency current flows in each induction heating coil, a magnetic field is generated around the induction heating coil. Due to the magnetic field, an eddy current in the opposite direction to the current flowing in the induction heating coil flows in the heating element of the upper plate 12a, and the toilet seat 12 is heated by the Joule heat generated by the eddy current.

The radio wave sensor 23 is installed so that at least a part of the radio wave sensor 23 is located above the heating mechanism 12c. That is, the up-down direction position of at least a part of the radio wave sensor 23 is higher than the up-down direction position of the heating mechanism 12c.

In addition, the radio wave sensor 23 is provided so that at least a part of the radio wave sensor 23 is located above the rear end EP of the opening OP. That is, the vertical position of at least a part of the radio wave sensor 23 is higher than the vertical position of the rear end EP.

The toilet cover 13 has an upper plate 13a and a lower plate 13b. There is a hollow structure between the upper plate 13a and the lower plate 13b. The lower plate 13b has a window portion 13c, and the light source unit 13d is provided close to the window portion 13c. The window portion 13c is configured to be transparent to ultraviolet light, and is provided so as to be located above the bowl portion 14a in a state where the toilet lid 13 is closed. The bowl 14a is sterilized by irradiating ultraviolet rays from the light source unit 13d to the bowl 14a with the toilet lid 13 closed.

The thickness of each of the upper plate 13a and the lower plate 13b is equal in the vicinity of the radio wave sensor 23. In other words, in the vicinity of the radio wave sensor 23, the upper surface of the upper plate 13a is parallel to the lower surface, and the upper surface of the lower plate 13b is parallel to the lower surface.

The radio wave sensor 23 is provided so that at least a part of the radio wave sensor 23 is located above the light source unit 13d. That is, the vertical position of at least a part of the radio wave sensor 23 is higher than the vertical position of the light source unit 13d.

The radio waves radiated from the radio wave sensor 23 pass through the heating mechanism 12 c of the toilet seat 12, the rear end EP of the opening OP, and the light source unit 13 d of the toilet cover 13 to advance toward the front of the toilet seat device 10. That is, the position and orientation of the radio wave sensor 23 are adjusted so that the radio waves radiated from the radio wave sensor 23 pass above the above-mentioned constituent elements.

Here, in order to explain the function and effect of the present embodiment, the problems of other toilet seat devices will be described using FIG. 4.

Fig. 4 is a cross-sectional view showing a toilet seat device of a reference example.

In the toilet seat device shown in Figure 4, the toilet seat rotates The part 28 is provided in front of the radio wave sensor 23, and the rear end of the toilet seat 12 is in front of the radio wave sensor 23. In the case of this toilet seat device, a part of the radio wave TW radiated toward the front of the radio wave sensor 23 enters the rear end of the toilet seat 12, and the other part does not enter the toilet seat 12 and propagates. At this time, the radio wave TW incident on the rear end of the toilet seat 12 is refracted on the boundary surface between the toilet seat 12 and the air.

The rear end of the toilet seat 12 is curved and its thickness varies. In addition, the refractive index of the resin or the like constituting the toilet seat 12 is higher than the refractive index of air. Therefore, as shown in FIG. 4, a part of the radio wave TW advances obliquely above the radio wave sensor 23, and the other part advances obliquely below the radio wave sensor 23. As a result, it is difficult for the radio waves to radiate toward the front of the radio wave sensor 23, and a region with low radio wave intensity is generated. When the intensity of the electric wave is small in front of the electric wave sensor 23, the intensity of the reflected wave from the human body decreases, and the possibility that the electric wave sensor 23 cannot correctly detect the user of the flush toilet device increases.

On the other hand, in the case of the toilet seat device 10 of this embodiment, the toilet seat 12 covers the radio wave sensor 23, and its rear end is located behind the radio wave sensor 23. As shown in FIG. Therefore, the radio wave TW radiated from the radio wave sensor 23 does not pass through the curved rear end portion, but travels in front of the radio wave sensor 23. That is, according to the present embodiment, it is possible to suppress the decrease in the intensity of the radio wave in front of the radio wave sensor 23, and it is possible to detect the detected object such as the user of the flush toilet device with high accuracy.

In addition, in the present embodiment, the thickness of the toilet seat 12 is equal in the vicinity of the radio wave sensor 23. Specifically, constituting the upper part of the toilet seat 12 The thickness of each of the plate 12a and the lower plate 12b is equal in the vicinity of the radio wave sensor 23. Here, assuming that the toilet seat 12 is made of resin, the radio wave TW radiated from the radio wave sensor 23 is refracted according to the refractive index of the resin with respect to the air when it enters the lower surface of the upper plate 12a and the lower plate 12b. When it is incident on the upper surface of each, it is refracted according to the refractive index of air with respect to the resin. At this time, when the thicknesses of the upper plate 12a and the lower plate 12b are equal, the angle of incidence when incident on the lower surface of each is equal to the angle of refraction when incident on the upper surface of each. That is, it is possible to suppress the change in the traveling direction of the radio waves before and after incident on the upper plate 12a and the lower plate 12b.

Therefore, by making the thickness of the toilet seat 12 equal in the vicinity of the radio wave sensor 23, the intensity of the radio wave can be further suppressed from falling in front of the radio wave sensor 23, and the user of the flush toilet device can be detected with higher accuracy. Wait for the detected object.

When the toilet seat device 10 is provided with the toilet lid 13, like the toilet seat 12, it is preferable that the thickness of the upper plate 13a and the lower plate 13b of the toilet lid 13 be equal in the vicinity of the radio wave sensor 23. By adopting such a structure, it is possible to suppress the change in the advancing direction of the radio wave TW caused by the toilet lid 13.

In addition, since the rear end EP of the opening OP is curved and the traveling direction of the radio wave TW changes when the radio wave TW is incident, the radio wave sensor 23 preferably radiates the radio wave TW so that the radio wave TW does not pass through the rear end EP. At this time, by disposing the radio wave sensor 23 above the rear end EP, the radio wave sensor 23 can be radiated further downward. As a result, short children, elderly people, etc. can be detected with higher accuracy.

Similarly, the radio wave sensor 23 preferably radiates the radio wave TW so that the radio wave TW does not pass through the heating mechanism 12c including metal. The reason for this is that the permittivity of metal is low, and it is difficult for the radio wave TW to pass through. By disposing the radio wave sensor 23 above the heating mechanism 12c, it is possible to radiate radio waves from the radio wave sensor 23 downward. In this way, short children, old people, etc. can be detected with higher accuracy.

Similarly, the radio wave sensor 23 preferably emits the radio wave TW in a state where the toilet lid 13 is closed so that the radio wave TW does not pass through the light source unit 13d. The reason for this is that the electrodes, light-emitting parts, and the like included in the light source unit 13d contain metal, making it difficult for the radio wave TW to pass through. By disposing the radio wave sensor 23 above the light source unit 13d, it is possible to radiate radio waves from the radio wave sensor 23 downward. In this way, short children, old people, etc. can be detected with higher accuracy.

In addition, by arranging the toilet seat rotating part 28 behind the radio wave sensor 23, when the toilet seat 12 is lifted, there is no toilet seat 12 in front of the radio wave sensor 23. Therefore, in the state where the toilet seat 12 is lifted, the refraction and attenuation of the radio wave TW caused by the toilet seat 12 can be suppressed, and the detected object can be detected with higher accuracy.

(First modification)

Fig. 5 is an enlarged cross-sectional view of the vicinity of the toilet seat device of the flush toilet device according to the first modification of the embodiment.

Instead of the toilet seat structure shown in FIG. 2, the toilet seat device of the embodiment may have the toilet seat structure shown in FIG. 5. That is, in Figure 2 In the illustrated toilet seat device 10, the radio waves TW radiated from the radio wave sensor 23 propagate toward the front of the toilet seat device 10 through the upper plate 12a and the lower plate 12b. On the other hand, in the toilet seat device 10a shown in FIG. 5, although the upper plate 12a and the lower plate 12b are provided around the opening OP of the toilet seat 12, the lower plate 12b is connected to the upper plate 12a at the rear, and only The upper plate 12a extends rearward. Therefore, the radio wave TW radiated from the radio wave sensor 23 travels toward the front of the toilet seat device 10 only through the upper plate 12a.

Even in the toilet seat device of the present modification, since the thickness of the upper plate 12a is the same in the vicinity of the radio wave sensor 23, the radio wave TW can be radiated substantially equal to the front of the radio wave sensor 23, and the detection can be performed with high accuracy. The user who is out of the flush toilet is the subject to be detected.

(Second modification)

Fig. 6 is an enlarged cross-sectional view of the vicinity of the toilet seat device of the flush toilet device according to the second modification of the embodiment.

Compared with the toilet seat device 10 shown in FIG. 2, the toilet seat device 10b of the second modification shown in FIG. 6 further includes a toilet seat reinforcement portion 12d, a toilet seat reinforcement portion 12e, and a toilet lid reinforcement portion 13e.

The toilet seat reinforcing parts 12d and 12e are provided on the upper surface of the lower plate 12b behind the toilet seat 12. That is, the toilet seat reinforcement part 12d and the toilet seat reinforcement part 12e are provided inside the toilet seat 12, and are located between the upper board 12a and the lower board 12b.

More specifically, the toilet seat reinforcement 12 d is provided in front of the radio wave sensor 23 inside the toilet seat 12. The vertical position of at least a part of the toilet seat reinforcing portion 12d is, for example, the same as that of the radio wave sensor 23. A few of them have the same up and down position. The toilet seat reinforcement part 12e is provided above the radio wave sensor 23 inside the toilet seat 12.

The toilet seat reinforcement portions 12d and 12e are, for example, a plurality of protrusions made of resin, and are formed integrally with the lower plate 12b. In addition, the toilet seat reinforcement parts 12d and 12e are continuously provided from the left side end part inside the toilet seat 12 to the right side end part, for example.

The radio wave TW is radiated through the area between the toilet seat reinforcement portions 12d and 12e. In other words, the toilet seat reinforcing parts 12d and 12e are not provided in the range where the radio wave TW is actually radiated, so that the thickness of the toilet seat 12 of the portion through which the radio wave TW is transmitted is equal. In this way, even when the toilet seat reinforcements 12d and 12e are provided, it is possible to suppress the radio wave intensity from falling in front of the radio wave sensor 23, and it is possible to accurately detect the detected object such as the user of the flush toilet device. . In addition, as described above, the actual radiation range of the radio wave TW is the area where the radio wave of 30% or more of the maximum radio wave intensity is radiated.

When the toilet seat rotating portion 28 is provided behind the radio wave sensor 23, compared with when the toilet seat rotating portion 28 is provided forward of the radio wave sensor 23, the rear end of the opening OP is between the toilet seat rotating portion 28 The distance between them becomes longer. That is, the distance between the parts supporting the upper plate 12a from below becomes longer. Therefore, when the user of the flush toilet device 100 sits on the toilet seat 12, the force applied to the upper plate 12a becomes greater. If the force applied to the upper plate 12a increases, the upper plate 12a may be damaged.

In the toilet seat device 10b of this modification, the toilet seat 12 is provided with a toilet seat reinforcement part 12d inside. By installing a toilet seat reinforcement part 12d, even when the upper plate 12a is deformed when sitting, the toilet seat reinforcement 12d supports the upper plate 12a from below, and suppresses the upper plate 12a from being excessively deformed. Therefore, according to this modification, even when the toilet seat 12 is lengthened in the front-rear direction in order to improve the detection accuracy of the radio wave sensor 23, the possibility of damage to the toilet seat 12 can be reduced.

In addition, if the toilet seat reinforcement part 12d is in contact with the upper plate 12a, when a user sits on the toilet seat 12, a large force is applied to the toilet seat reinforcement part 12d, and the toilet seat reinforcement part 12d may be damaged. Therefore, it is preferable to provide the toilet seat reinforcement part 12d separately from the upper plate 12a in the up-down direction. According to such a structure, while supporting the weight of the user by the upper board 12a, when the upper board 12a deforms, the toilet seat reinforcement part 12d can support the upper board 12a from below, and can suppress the upper board 12a from deforming excessively. In addition, it is preferable to provide the toilet seat reinforcement portion 12d so as not to contact the heating mechanism 12c when the upper plate 12a is deformed downward.

Furthermore, when the toilet seat rotating part 28 is provided behind the radio wave sensor 23 and the length of the toilet seat 12 in the front-rear direction becomes longer, the force required to rotate the toilet seat 12 becomes greater, and the toilet seat rotating part of the toilet seat 12 A large force is applied near 28. If a large force is applied to a part of the toilet seat 12, the toilet seat 12 may be damaged. In addition, during rotation, the toilet seat 12 may be deformed in the vicinity of the toilet seat rotating portion 28, and the rotation of the toilet seat 12 may become unstable.

In this regard, in the toilet seat device 10b of the present modification, the toilet seat reinforcing portion 12e is provided in the toilet seat 12 above the radio wave sensor 23. By providing the toilet seat reinforcement part 12e, it is possible to improve The strength of the part applied by the force during high rotation can reduce the possibility of damage to the toilet seat 12 and at the same time make the rotation of the toilet seat 12 more stable. Therefore, false detection of the toilet seat as a human body can be suppressed, and the performance of the radio wave sensor can also be stabilized.

In addition, in the portion where the toilet seat reinforcement portion 12e is provided, the force applied when sitting is smaller than the portion where the toilet seat reinforcement portion 12d is provided. Therefore, in order to effectively increase the strength near the toilet seat rotating portion 28 of the toilet seat 12, it is preferable to provide the toilet seat reinforcing portion 12e in contact with the upper plate 12a.

The rear end of the toilet lid reinforcement part 13e is connected to the toilet lid rotation part 29, and the side end and the front end are connected to the lower plate 13b. Therefore, when the toilet lid 13 is rotated, the force is transmitted from the toilet lid rotating part 29 to the toilet lid 13 through the toilet lid reinforcing part 13e, so that the toilet lid 13 is rotated. In the example shown in FIG. 6, although the toilet lid reinforcing portion 13e and the toilet lid rotating portion 29 are integrally formed to connect the parts having the respective functions, these members may be provided separately and connected to each other.

For example, as shown in FIG. 1(b), the toilet lid reinforcement 13e is provided in the center behind the toilet lid 13. In addition, as shown in FIG. 6, in a state where the toilet lid 13 is closed, the toilet lid reinforcing portion 13 e extends forward and is provided from the toilet lid rotating portion 29 over the radio wave sensor 23. The toilet lid reinforcement 13e forms a part of the lower surface of the toilet lid 13, for example, together with the lower plate 13b. Alternatively, the toilet lid reinforcement 13e may be provided inside the toilet lid 13 and connected to at least one of the upper plate 13a and the lower plate 13b.

The thickness of the toilet lid reinforcement 13e is greater than the thickness of the lower plate 13b degree. The toilet lid reinforcement 13e is made of a material having higher strength than the toilet lid 13 (upper plate 13a and lower plate 13b), such as metal (for example, SUS304).

Regarding the toilet lid 13, similarly to the toilet seat 12, the toilet lid rotation part 29 is provided behind the radio wave sensor 23. Therefore, when the toilet lid 13 is rotated through the toilet lid rotation part 29, the toilet lid rotation part of the toilet lid 13 A large force is applied near 29. If a large force is applied to a part of the toilet lid 13, the toilet lid 13 may be damaged.

In the toilet seat device 10b of this modified example, a toilet lid reinforcement part 13e is provided, and the toilet lid 13 is rotated through the toilet lid rotation part 29 via the toilet lid reinforcement part 13e. As described above, the toilet lid reinforcement 13e has higher strength than the toilet lid 13. Therefore, compared with when the toilet lid 13 is directly rotated through the toilet lid rotation part 29, the force applied to the toilet lid 13 can be reduced, and the possibility of damage to the toilet lid 13 can be reduced. In addition, the toilet lid reinforcement portion 13e is configured as follows. The toilet lid rotation portion 29 is provided over the radio wave sensor 23, and the area of the connection portion between the toilet lid 13 and the toilet lid reinforcement portion 13e is increased. According to such a structure, when the toilet lid 13 is rotated, the force applied to the connection portion of the toilet lid 13 and the toilet lid reinforcing portion 13e is further reduced, and the possibility of damage to the toilet lid 13 can be further reduced. In addition, false detection of the toilet lid as a human body can be suppressed, and the performance of the radio wave sensor can also be stabilized.

In the foregoing, the embodiments of the present invention have been described. However, the present invention is not limited to the content described above. Regarding the foregoing embodiments, those skilled in the art can add an invention with appropriate design changes, as long as they have The features of the present invention are also included in the scope of the present invention. For example, the shape, size, material, arrangement, installation form, etc. of each element included in the toilet seat device are not limited to the exemplified content, but can be appropriately changed.

In addition, the various elements provided in the foregoing embodiments can be combined as long as they are technically feasible, and as long as the features of the present invention are included, the invention combining these is also included in the scope of the present invention.

12‧‧‧Toilet seat

13‧‧‧Toilet cover

13c‧‧‧Window Department

13e‧‧‧Toilet lid reinforcement

14‧‧‧Toilet

26a‧‧‧Upper shell

100‧‧‧Flushing toilet device

OP‧‧‧Open

Claims (10)

A toilet seat device, which is characterized by comprising: a body part arranged at the upper rear part of the toilet; a toilet seat arranged to be rotatable relative to the body part; and a radio wave sensor arranged in the body part to transmit electric waves To detect the human body, the rear end of the toilet seat is located behind the radio wave sensor. When the toilet seat is lowered, the toilet seat covers the radio wave sensor, and the radio waves pass through the toilet seat toward the radio wave. Radiation from the front of the sensor. For example, the toilet seat device of the first item of the scope of the patent application, wherein the thickness of the portion through which the radio waves pass through the toilet seat is the same when the toilet seat is lowered. Such as the toilet seat device of item 1 or 2 of the scope of patent application, wherein, in the state where the toilet seat is lowered, at least a part of the radio wave sensor is located above the rear end of the opening of the toilet seat. For example, the toilet seat device of item 1 or 2 of the scope of the patent application further includes a heating mechanism that is provided inside the toilet seat and contains metal. When the toilet seat is lowered, at least a part of the radio wave sensor is located Higher than the aforementioned heating mechanism. If the toilet seat device of item 1 or 2 is applied for, its In this embodiment, the toilet seat pivot is further provided to support the toilet seat shaft to the main body, and the toilet seat pivot is provided behind the radio wave sensor. For example, the toilet seat device of item 5 of the scope of the patent application further includes a first toilet seat reinforcement part, which is provided in the toilet seat above the main body part and located in front of the radio wave sensor. When the toilet seat When the upper plate is deformed downward, the upper plate is supported from below. For example, the toilet seat device of item 6 of the scope of patent application, which further includes a second toilet seat reinforcement part, which is provided in the toilet seat above the main body part, and is located above and behind the radio wave sensor. The aforementioned upper plate of the toilet seat contacts. For example, the toilet seat device of the seventh item in the scope of patent application, wherein the radio wave sensor radiates the radio wave forward through the area between the first toilet seat reinforcement part and the second toilet seat reinforcement part. For example, the toilet seat device of item 5 of the scope of patent application, which further includes: a toilet lid; a toilet lid rotating part for supporting the toilet lid shaft on the body part; and a toilet lid reinforcing part connected to the toilet lid rotating part and In the toilet cover, the toilet cover rotation part is provided behind the radio wave sensor, and the toilet cover reinforcement part is provided from the toilet cover rotation part over the radio wave sensor. For example, the toilet seat device of item 1 or 2 of the scope of patent application further includes a toilet lid with a light source unit, and when the toilet lid is closed, at least a part of the radio wave sensor is located above the light source unit .

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