JP2016216946A - Urinal device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a urinal device that offers greater comfort.SOLUTION: A urinal device includes a flush water spraying section having a water spraying hole from which water is sprayed into a space inside a bowl section of a urinal, a human body detection section that detects a user, and a control section that controls the flush water spraying section. The control section does not spray water when the user is in a first range, but sprays water when the user comes out of the first range. Furthermore, the control section sprays water or stops water spraying when the user comes into a second range at a further distance from the urinal than the first range.SELECTED DRAWING: Figure 1

Description

  Aspects of the present invention generally relate to a urinal device.

  In urinals, in order to save water, the amount of flushing water that flows after use is reduced. However, if the amount of washing water used is reduced, for example, the replacement rate of urine and water collected in the trap at the urinal drain is lowered, which causes odor generation. Therefore, there is a urinal device that deodorizes the urinal by spraying washing water into the space in the bowl portion of the urinal (for example, Patent Document 1). The washing water sprayed from the urinal device does not flow down along the elevation of the toilet bowl, but is directly ejected from the spray hole to the space in the bowl portion through the water supply pipe.

  In such a urinal device, for example, if sprayed water is applied to the user, the user is uncomfortable. For this reason, in the urinal apparatus, improvement in comfort is desired.

JP 2013-241767 A

  The present invention has been made based on the recognition of such a problem, and an object thereof is to provide a urinal device with improved comfort.

  1st invention is a washing water sprinkling part which has a watering hole which sprinkles water in the space inside the bowl part of a urinal, a human body detection part which detects a user, and a control part which controls the washing water sprinkling part The control unit does not perform the watering when the user is in the first range, performs the watering when the user leaves the first range, and the user performs the first watering. The urinal apparatus is characterized in that when the distance from the urinal is longer than the range, the watering is performed or the watering is stopped when the second range is entered.

  According to this urinal device, it is possible to suppress the sprayed wash water from being applied to the user and to improve comfort.

  A second invention is a urinal according to the first invention, wherein the control unit stops the watering when a user enters the second range in a state where the watering is performed. Device.

  According to this urinal device, it is possible to more appropriately suppress the sprayed washing water from being applied to the user, and the comfort can be further improved.

  In a third aspect based on the first aspect, the control unit performs watering when the user enters the second range, and stops the watering when the user enters the first range. A urinal device characterized by the above.

  According to this urinal device, the odor can be more appropriately suppressed and the comfort can be further improved.

  According to a fourth invention, in any one of the first to third inventions, the control unit is configured to control the first range and the first time when the user approaches the urinal and when the user moves away from the urinal. 2. A urinal device characterized by changing at least one of the two ranges.

  According to this urinal device, the operation of the flush water sprinkling unit can be more appropriately controlled when the user approaches the urinal and when the user leaves the urinal, and the comfort can be further improved. .

  According to a fifth invention, in any one of the first to fourth inventions, at least one of the first range and the second range is biased rightward or leftward. It is a toilet device.

  According to this urinal device, for example, it is possible to detect an approaching user earlier by biasing at least one of the first range and the second range in the direction in which the user comes in the toilet room. it can.

  According to an aspect of the present invention, a urinal device with improved comfort is provided.

It is a block diagram showing typically the principal part composition of the urinal device and urinal unit concerning a 1st embodiment. 2A and 2B are a schematic front view and a schematic cross-sectional view showing the urinal unit according to the first embodiment. FIG. 3A to FIG. 3C are schematic views illustrating specific examples of the cleaning water supply unit and the cleaning water sprinkling unit of the first embodiment. FIG. 3 is a schematic plan view illustrating operations of a human body detection unit and a control unit according to the first embodiment. FIG. 5A to FIG. 5C are schematic views illustrating the operation of the urinal device according to the first embodiment. It is a flowchart which illustrates operation | movement of the urinal apparatus concerning 1st Embodiment. It is a block diagram showing typically the modification of the urinal apparatus and urinal unit concerning a 1st embodiment. It is a top view showing typically a modification of a urinal device and a urinal unit concerning a 1st embodiment. FIG. 9A and FIG. 9B are schematic views illustrating the operation of the urinal device according to the second embodiment. It is a flowchart which illustrates operation | movement of the urinal apparatus concerning 2nd Embodiment. It is a top view which represents typically the urinal apparatus and urinal unit concerning 2nd Embodiment. It is a flowchart which illustrates another operation | movement of the urinal apparatus concerning 2nd Embodiment. FIGS. 13A and 13B are plan views schematically showing the urinal device and the urinal unit according to the third embodiment.

Embodiments of the present invention will be described below with reference to the drawings. In addition, in each drawing, the same code | symbol is attached | subjected to the same component and detailed description is abbreviate | omitted suitably.
FIG. 1 is a block diagram schematically illustrating the main configuration of the urinal device and the urinal unit according to the first embodiment.
In addition, FIG. 1 represents together the principal part structure of the water channel system and electric system of the urinal unit 10.

  As shown in FIG. 1, the urinal unit 10 includes a urinal device 100 and a urinal 210. The urinal 210 is a male urinal. The urinal 210 has a bowl part 211 (see FIG. 2) and a trap part 213. The trap part 213 is provided in the lower part of the bowl part 211, and forms sealing water inside the trap part 213 itself. Thereby, the trap part 213 can prevent a bad odor, pests, etc. invading a toilet room etc. from the horizontal drawing drain piping etc. which are provided in the back of the urinal apparatus 100, etc. Urine and water flow into the trap part 213.

  The urinal apparatus 100 includes a control unit 110, a human body detection unit 120, a flow path switching valve 130, a washing water supply unit 140, a functional water generation unit 150, and a washing water sprinkling unit 160. In the urinal apparatus 100, the flow path switching valve 130, the washing water supply unit 140, and the functional water generation unit 150 are provided as necessary and can be omitted. The urinal device 100 may be formed separately from the urinal 210 and attached to the urinal 210 or may be formed integrally with the urinal 210.

  Based on the signal transmitted from the control unit 110, the flow path switching valve 130 is in a state where water supplied from a water supply source (not shown) (for example, a water supply or a tank) is guided to the cleaning water supply unit 140, and from the water supply source The state in which the supplied water is guided to the cleaning water sprinkler 160 is switched. The flow path switching valve 130 switches between water supply to the cleaning water supply unit 140 and water supply to the cleaning water sprinkling unit 160 individually. The flow path switching valve 130 can supply water to only one of the cleaning water supply unit 140 and the cleaning water sprinkling unit 160 and can supply water to both the cleaning water supply unit 140 and the cleaning water sprinkling unit 160. .

  The washing water supply unit 140 includes a spreader 141 and supplies water supplied from a water supply source to the bowl unit 211 of the urinal 210 via the flow path switching valve 130. As shown in FIG. 1, the water supplied from the water supply source to the cleaning water supply unit 140 does not pass through the functional water generation unit 150. Therefore, the wash water supply unit 140 supplies water that is supplied from a water supply source and is not functional water (hereinafter, this water is referred to as “fresh water”) to the bowl unit 211 of the urinal 210. That is, the functional water is not used as the water that the cleaning water supply unit 140 supplies to the bowl unit 211. Fresh water is tap water or miscellaneous water supplied from a water supply source.

  The cleaning water sprinkler 160 has a sprinkler 161. The watering part 161 is provided with a watering hole 161a. The number of sprinkling holes 161a is not limited to one as shown in FIG. The washing water sprinkling unit 160 supplies the functional water generated in the functional water generating unit 150 and formed into droplets to the internal space of the bowl unit 211 of the urinal 210 from the watering hole 161 a of the watering unit 161. . The functional water supplied from the water spray hole 161a to the bowl portion 211 of the urinal 210 can dissolve ammonia. The diameter of the functional water in the form of droplets sprayed by the cleaning water sprinkler 160 is, for example, about 10 micrometers (μm) or more and 1200 μm or less. The water sprayed by the cleaning water sprinkler 160 is not limited to functional water, and may be fresh water. For example, if fresh water having a diameter of several μm is sprayed in a mist shape toward the bowl part 211 before using the urinal 210, the odor drifting in the internal space of the bowl part 211 can be suppressed. Further, even when fresh water adheres to the side surface of the urinal 210 or the surrounding floor, if the watering time is short, the amount of water is extremely small, so that it dries relatively quickly and does not cause discomfort to the user.

  The amount of water (water amount) supplied to the bowl unit 211 by the cleaning water supply unit 140 in one operation is larger than the amount of water supplied to the bowl unit 211 by the cleaning water sprinkling unit 160 in one operation. For example, the amount of water supplied to the bowl unit 211 by the cleaning water supply unit 140 in one operation is about 0.4 liters (L) or more and 1.5 L or less. For example, the amount of water supplied to the bowl unit 211 by the cleaning water sprinkling unit 160 in one operation is, for example, about 20 milliliters (mL) to about 100 mL.

Here, the mechanism of ammonia generation is, for example, as follows.
That is, when urination is performed in the urinal 210, the urine adheres to the surface of the urinal 210 or stays in the sealed water (retaining water) of the trap portion 213. General bacteria present in the air, on the toilet surface, etc., adhere to the retained urine. General bacteria absorb nutrients from urine, activate the activity of producing urease enzyme, and promote urea decomposition inhibition by urease enzyme. Urea is broken down into ammonia and carbon dioxide, which contributes to malodor. In addition, if the hydrogen ion concentration (pH) of the decomposed product is biased to alkaline due to the generated ammonia, and the pH is biased to alkaline exceeding 8.0 to 8.5, calcium ions dissolved in urine are difficult to be dissolved. It becomes a soluble calcium compound (such as calcium phosphate, also commonly called urolith). This urine stone becomes a hotbed of bacteria and accelerates the process so far to generate more ammonia.

  It takes a predetermined time for the urine adhering to the surface of the urinal 210 and the urine bacteria staying in the sealing water of the trap portion 213 to be activated. The “predetermined time” is, for example, about 2 hours or more. Therefore, if the urine adheres to the surface of the urinal 210 or stays in the sealing water of the trap portion 213 for less than 2 hours, the increase in pH is suppressed and the generation of odor and urine stone (dirt) is suppressed. be able to.

  The functional water generating unit 150 is provided on the upstream side of the cleaning water sprinkling unit 160. In the urinal device 100 illustrated in FIG. 1, the functional water generation unit 150 is provided between the flow path switching valve 130 and the flush water sprinkling unit 160. Based on the signal transmitted from the control unit 110, the functional water generation unit 150 can generate functional water using water supplied from the water supply source via the flow path switching valve 130. Functional water can dissolve and decompose ammonia.

The functional water production | generation part 150 has an electrolytic vessel, for example. An anode plate and a cathode plate are provided inside the electrolytic cell. The functional water generator 150 electrolyzes tap water and miscellaneous water flowing inside the electrolytic cell based on a signal transmitted from the controller 110. Here, tap water contains chloride ions. Chloride ions are contained as salt (NaCl), calcium chloride (CaCl ₂ ) and the like in a water source (for example, groundwater, dam water, river water, etc.). Therefore, hypochlorous acid is produced by electrolyzing chloride ions. As a result, the water electrolyzed in the functional water generator 150 (electrolyzed water) changes to a liquid containing hypochlorous acid (functional water).

  Hypochlorous acid functions as, for example, a deodorizing component or a bactericidal component. The liquid containing hypochlorous acid can dissolve or decompose ammonia, or reduce general bacteria.

  In addition, the functional water production | generation part 150 of this embodiment is not necessarily limited to producing | generating the liquid containing hypochlorous acid. The functional water generated in the functional water generator 150 may be a liquid containing metal ions such as silver ions and copper ions. Or the functional water produced | generated in the functional water production | generation part 150 may be the liquid containing electrolytic chlorine, ozone, etc. Alternatively, the functional water generated in the functional water generator 150 may be acidic water or alkaline water. Among these, the liquid containing hypochlorous acid can dissolve and decompose ammonia more. Moreover, the functional water generating unit 150 is not limited to an electrolytic cell unit having an electrolytic cell, an anode plate, and a cathode plate.

  When the functional water generating unit 150 generates the functional water based on the signal transmitted from the control unit 110, the cleaning water sprinkling unit 160 is the functional water generated in the functional water generating unit 150 and formed into droplets. Water is supplied to the internal space of the bowl part 211 from the water spray hole 161a.

  Functional water may be generated simultaneously with the start of watering, or may be generated after a predetermined time has elapsed since the start of watering. Since the early deterioration of the functional water generator 150 can be suppressed by shortening the generation time, the maintainability is improved. Further, the timing of watering the bowl portion 211 is not limited to immediately before or after the user urinates. The functional water sprayed from the cleaning water sprinkler 160 is sprinkled toward the internal space of the bowl 211, and the functional water is sprinkled toward the bowl 211, so that a part of the functional water flows along the bowl 211. The shape and attachment angle of the watering hole 161a are set. If functional water is sprayed from the sprinkling holes 161a at night or when the urinal 210 is not used (waiting) for a predetermined time, the hygiene of the bowl part 211 and the trap part 213 (suppression of bacterial adhesion and growth) It is possible to suppress odor diffusion into the toilet space while maintaining the above. At this time, the amount of the functional water sprayed toward the internal space of the bowl portion 211 is preferably about 10 to 30% of the amount of the functional water sprayed toward the bowl portion 211, and the water having a relatively small flow rate. Therefore, the sanitary property of the urinal 210 can be efficiently maintained.

  The human body detection unit 120 detects a user in front of the urinal 210, that is, a user present at a position spaced forward from the urinal 210. In other words, the human body detection unit 120 detects the use of the urinal 210. As such a human body detection unit 120, for example, an infrared light projecting / receiving sensor (infrared sensor), a pyroelectric sensor (pyroelectric sensor), a sensor using a Doppler effect by radio waves (microwave sensor), or the like is used. be able to.

  The human body detection unit 120 detects a user and inputs detection information to the control unit 110. The control unit 110 determines whether there is a user in front of the urinal 210 based on the detection information from the human body detection unit 120. The control unit 110 includes a flow path switching valve 130, a cleaning water supply unit 140, a functional water generation unit 150, a cleaning water sprinkling unit 160, and the like according to the determination result of the presence of the user based on the detection information from the human body detection unit 120. Control the operation of each part.

  Here, tap water that is suitable for drinking may be used as water supplied from the water supply source, while miscellaneous water that uses water (drainage) after using tap water as raw water or rainwater as raw water. Some miscellaneous water is used. In the case of miscellaneous water (for example, “medium water”), there is a case where minimum water quality management is performed as compared with tap water. For this reason, the organic matter contained in the miscellaneous water may be relatively large. If there is a large amount of organic matter in the miscellaneous water, bacteria and microorganisms that use the organic matter as nutrient sources may grow and produce aggregates. A fungus or an aggregate of microorganisms is called, for example, a biofilm.

  When the size of the biofilm increases, the watering holes 161a of the watering part 161 may be clogged due to the generation of the biofilm. The diameter of the watering hole 161a is, for example, about 0.5 millimeter (mm) or more and 3 mm or less. If the water sprinkling hole 161a is clogged due to the generation of the biofilm, the water discharge direction of the functional water sprinkled from the water sprinkling hole 161a may not be determined and water may not be sprinkled into the internal space of the bowl portion 211. Then, the extent to which the odor generated from the urinal 210 and the dirt generated in the urinal 210 are reduced is reduced.

  On the other hand, the cleaning water sprinkler 160 of the present embodiment is functional water generated by the functional water generator 150, and drops the functional water into the internal space of the bowl 211 from the water spray hole 161a. Sprinkle water. Thereby, the microbe and microorganisms contained in miscellaneous water can be killed, and it can suppress that a biofilm produces | generates upstream of the washing water sprinkling part 160. FIG. Therefore, it can suppress that the watering hole 161a of the washing water sprinkling part 160 is blocked by the production | generation of a biofilm. Moreover, it can suppress that water is sprinkled in the direction which is not intended from the washing water sprinkling part 160. FIG.

  The functional water sprinkled from the washing water sprinkling unit 160 dissolves and decomposes at least one of ammonia generated in the bowl unit 211 and ammonia present around the bowl unit 211. The ammonia existing around the bowl part 211 means, for example, ammonia floating around the bowl part 211 or ammonia floating around the bowl part 211. Thereby, the washing water sprinkling part 160 can suppress the smell by ammonia generated from the urinal 210. In addition, when the cleaning water sprinkling unit 160 sprinkles functional water, for example, even if water in which ammonia is dissolved adheres to the urinal 210 and evaporates, it is possible to suppress the generation of odor due to ammonia again.

  The washing water supply unit 140 can supply water to the bowl unit 211 of the urinal 210 to remove urine adhering to the urinal 210 and remove foreign matters such as body hair. In addition, the washing water supply unit 140 can supply water to the trap unit 213 of the urinal 210 and replace the sealed water inside the trap unit 213 with newly supplied water.

  As described above, the diameter of the water droplets sprinkled by the cleaning water sprinkler 160 is about 10 μm or more. As a result, the degree to which the droplets sprayed from the cleaning water sprinkler 160 continue to float in the space is reduced, and it is possible to suppress scattering to an unintended space. Therefore, it is possible to prevent the user from getting wet or the area around the urinal 210 from being wetted by the liquid droplets sprayed from the cleaning water sprinkling unit 160. In addition, the diameter of the water droplets sprayed by the cleaning water sprinkler 160 is about 1200 μm or less. Thereby, it can suppress that the droplet sprinkled from the washing water sprinkling part 160 falls comparatively early, and the effect which melt | dissolves ammonia falls.

  Here, the definition of the numerical value of the diameter of water is described. The diameter of water sprayed from the cleaning water sprinkler 160 generally has a certain range. The particle diameter (50% diameter: generally called the median diameter) at the point where the distribution curve of the cumulative% of particle diameters intersects the horizontal axis of 50% is defined as the water diameter.

2A and 2B are a schematic front view and a schematic cross-sectional view showing the urinal unit according to the first embodiment.
FIG. 2B is a schematic cross-sectional view taken along the cutting plane A1-A1 illustrated in FIG.
As shown in FIG. 2A and FIG. 2B, for example, the water sprinkling part 161 of the cleaning water sprinkling part 160 is provided on the upper part of the bowl part 211 of the urinal 210. The water sprinkling unit 161 sprinkles functional water that has been made into droplets below the bowl unit 211. Here, “downward” is not limited to the downward direction in the vertical direction, but includes the direction from the horizontal direction to the lower side. In other words, “downward” here refers to the direction excluding the horizontal direction and the direction above the horizontal direction.

  According to this, since the water sprinkling part 161 sprinkles the functional water formed into droplets from the upper part of the bowl part 211, an air flow directed downward from the water sprinkling part 161 is generated inside the bowl part 211. Therefore, the airflow generated inside the bowl portion 211 can suppress the increase in ammonia. Moreover, the functional water sprayed from the water spraying part 161 melt | dissolves ammonia, and decomposes | disassembles ammonia into an odorless substance. Thereby, it is possible to make it difficult for the user to feel the smell of ammonia generated from the urinal 210.

  Moreover, in addition to being able to suppress the smell by the ammonia in the vicinity of the ammonia generation source in the surface of the bowl part 211 by sprinkling the functional water by which the watering part 161 was made into droplets, a droplet passes through space. At the same time, the odor caused by ammonia present in the space can also be suppressed. Furthermore, the surface area of the water per unit amount of water can be made significantly wider in the dropletized water than in the state of the water that travels on the surface of the bowl portion 211 supplied from the cleaning water supply unit 140. As a result, the area where the functional water comes into contact with ammonia can be increased, and the odor can be efficiently suppressed. The odor present in the space includes not only ammonia caused by urine but also odor of the urine itself after the user urinates (for example, an odor derived from ingested food such as coffee odor). As for the odor, it is possible to suppress the odor by sprinkling the functional water in the form of droplets.

  In addition, the installation form of the washing water sprinkling part 160 is not limited to the example shown to Fig.2 (a) and FIG.2 (b). For example, the water sprinkling part 161 of the washing water sprinkling part 160 may be provided in the lower part of the bowl part 211 of the urinal 210. In this case, the water sprinkling unit 161 sprinkles water that has been formed into droplets above the bowl unit 211. Here, “upward” is not limited to the upward direction in the vertical direction, but includes the upward direction from the horizontal direction. That is, the term “upward” here refers to a direction excluding the horizontal direction and the direction below the horizontal direction.

  According to this, since the water sprinkling part 161 sprinkles the functional water dropletized upward from the lower part of the bowl part 211, at least a part of the functional water sprinkled from the water sprinkling part 161 is in the bowl part 211. Can drift outside. The water drifting outside the bowl part 211 can dissolve the ammonia gas existing outside the bowl part 211. Thereby, not only the odor of the urinal 210 but also the odor around the urinal 210 can be made difficult for the user to feel.

FIG. 3A to FIG. 3C are schematic views illustrating specific examples of the cleaning water supply unit and the cleaning water sprinkling unit of the first embodiment.
FIG. 3A is a schematic perspective view illustrating a specific example of the cleaning water supply unit and the cleaning water sprinkling unit. FIG. 3B is a schematic cross-sectional view taken along the cutting plane A2-A2 illustrated in FIG. FIG.3 (c) is typical sectional drawing in cut surface A3-A3 represented to Fig.3 (a).

  As shown in FIGS. 3A to 3C, the cleaning water supply unit 140 and the cleaning water sprinkling unit 160 are integrated with each other. As illustrated in FIG. 3B, the cleaning water supply unit 140 includes a spreader 141. Inside the spreader 141, a spreader flow path 143 is provided. As shown in FIG. 3B and FIG. 3C, a water outlet 145 is formed at one end of the spreader channel 143. The water guided through the spreader channel 143 is discharged from the water outlet 145 and supplied to the bowl portion 211 of the urinal 210.

  The cleaning water sprinkler 160 has a sprinkler 161 and a tube 163. The watering part 161 has a nozzle etc., for example, and is connected to one end of the tube 163. The watering part 161 has the watering hole 161a. The water sprinkling part 161 sprinkles water made into droplets from the water sprinkling hole 161a. For example, the watering hole 161a has a shape whose diameter is increased from the inside of the watering part 161 toward the outside. For example, the first diameter D1 of the water spray hole 161a is about 0.5 mm or more and 0.8 mm or less. For example, the second diameter D2 of the water spray hole 161a is about 2.7 mm or more and 3.0 mm or less. The functional water guided through the tube 163 is sprinkled from the sprinkling unit 161 as droplet-shaped functional water and supplied to the bowl unit 211 of the urinal 210.

  As shown in FIGS. 3A and 3B, the human body detection unit 120 is provided inside the cleaning water supply unit 140 and the cleaning water sprinkling unit 160. In the present embodiment, the human body detection unit 120, the cleaning water supply unit 140, and the cleaning water sprinkling unit 160 may be individually provided in the urinal 210.

FIG. 4 is a schematic plan view illustrating operations of the human body detection unit and the control unit according to the first embodiment.
As shown in FIG. 4, the human body detection unit 120 has a first range R1 and a second range R2. The first range R1 and the second range R2 are set at least in front of the urinal 210. The second range R2 is longer in the predetermined direction from the urinal 210 than the first range R1. For example, the second range R2 is wider than the first range R1. The human body detection unit 120 can detect the user US in each of the first range R1 and the second range R2. In other words, the first range R1 and the second range R2 are detection ranges of the human body detection unit 120. The second range R2 is a detection range that can detect farther than the first range R1.

  The control unit 110 determines whether or not the user US is in the first range R1 based on the detection information of the human body detection unit 120, and determines whether or not the user US is in the second range R2. . For example, when the human body detection unit 120 is a photoelectric sensor (infrared sensor), the detection information of the human body detection unit 120 is the voltage of the light receiving unit.

  In this case, for example, when the voltage input from the human body detection unit 120 is equal to or higher than the first threshold, the control unit 110 determines that the user US is in the first range R1. For example, the control unit 110 determines that the user US is in the second range R2 when the voltage input from the human body detection unit 120 is equal to or higher than a second threshold value that is lower than the first threshold value. Then, for example, when the voltage input from the human body detection unit 120 is less than the second threshold, the control unit 110 determines that the user US is not in the first range R1 or the second range R2. That is, the control unit 110 determines that there is a user in the second range R2 when the amount of reflected light from the user US is greater than or equal to a predetermined value, and the amount of reflected light from the user US is greater than another predetermined value. When it becomes, it determines with the user US being in 1st range R1.

  Here, the “state in which the user US is in the range” refers to a state in which at least a part of the user US such as a hand or a foot is within a predetermined range. The state in which the user US is not in the range is, for example, a state in which the entire user US is not within a predetermined range.

  For example, the control unit 110 determines that the user US has entered the range when the detection state of the human body detection unit 120 is switched from a state outside the range. And the control part 110 determines with the user US having gone out of the range, for example, when the detection state of the human body detection part 120 switches from the state in a range to the state which is not in a range.

  Thus, in other words, the first range R1 and the second range R2 are detection information threshold values of the human body detection unit 120 in the control unit 110. When the human body detection unit 120 is a pyroelectric sensor, the detection information is a voltage corresponding to the incident amount of infrared rays emitted from the user US. When the human body detection unit 120 is a microwave sensor, the detection information includes the amplitude of the reception voltage of the reflected wave from the user US, or the integrated value of the speed obtained from the frequency difference, the phase difference (movement direction and movement angle), Such as distance. What is necessary is just to set a 1st threshold value and a 2nd threshold value suitably according to the kind of human body detection part 120, the detection information output, etc. A plurality of sensors having different ranges may be provided in the human body detection unit 120, and the first threshold value and the second threshold value may be set respectively. For example, the first range R1 includes an infrared sensor suitable for human body detection in a relatively short distance and a narrow range, and the second range R2 includes a microwave sensor suitable for human body detection in a relatively long distance and a wide range.

  The control unit 110 determines the presence of the user US in the first range R1 and the second range R2 by changing the threshold of one detection information of the human body detection unit 120. In this case, the first range R1 overlaps with the second range R2. The first range R1 is included in the second range R2. For example, the second range R2 is substantially similar to the first range R1.

  For example, when the human body detection unit 120 is a photoelectric sensor, the first range R1 and the second range R2 are spot-like regions extending forward. In this case, the first range R1 and the second range R2 widen at an angle of ± 10 ° (for example, ± 10 ° or more and ± 60 ° or less) from the human body detection unit 120, for example. The first range R1 and the second range R2 are, for example, substantially conical regions. The shapes of the first range R1 and the second range R2 are not limited to this, and may be any shape that can be detected by the user US.

FIG. 5A to FIG. 5C are schematic views illustrating the operation of the urinal device according to the first embodiment.
FIG. 6 is a flowchart illustrating the operation of the urinal device according to the first embodiment. As shown in FIG. 5A, the control unit 110 is based on the detection result of the human body detection unit 120 while the user US determines that the user US is in the first range R1. The supply of cleaning water by 140 and the spraying of functional water by the cleaning water sprinkler 160 are stopped (steps S01 and S02 in FIG. 6).

  As illustrated in FIG. 5B, when the control unit 110 determines that the user US has left the first range R1, the control unit 110 drives the cleaning water supply unit 140 and the cleaning water sprinkling unit 160, and the cleaning water supply unit. The cleaning water is supplied by 140 and the functional water is sprayed by the cleaning water sprinkling unit 160 (step S03 in FIG. 6).

  The control unit 110 supplies the cleaning water by the cleaning water supply unit 140 and waters the functional water by the cleaning water sprinkling unit 160 for a predetermined time (step S04 in FIG. 6). After performing the cleaning and watering for a predetermined time, the control unit 110 stops the operations of the cleaning water supply unit 140 and the cleaning water sprinkling unit 160 (Step S05 in FIG. 6). The operation time of the cleaning water supply unit 140 may be the same as or different from the operation time of the cleaning water sprinkling unit 160.

  As shown in FIG. 5C, when the controller 110 determines that the user has entered the second range R2 before the predetermined time has elapsed, the controller 110 stops the operation of the cleaning water sprinkler 160 (FIG. 6). Steps S06 and S07). That is, the control unit 110 stops watering of the cleaning water sprinkling unit 160 when the user US enters the second range R2 while the functional water sprinkling is performed by the cleaning water sprinkling unit 160.

  Thereby, it can suppress that the water sprayed on user US. The washing water supplied to the bowl part 211 by the washing water supply unit 140 is unlikely to be applied to the user US. Therefore, when the user US enters the second range R2 during the supply of the cleaning water, the operation of the cleaning water supply unit 140 may be stopped or continued as it is.

  When the controller 110 determines that the user US has entered the first range R1 after stopping the water spraying by the cleaning water sprinkler 160, the controller 110 stops the operation of the cleaning water supply 140 and the cleaning water sprinkler 160. Returning to the standby state (step S08 in FIG. 6).

  On the other hand, for example, when the user US does not enter the first range R1 even after a predetermined time has elapsed since the stop of watering, the control unit 110 restarts watering by the cleaning water water spraying unit 160 (step S09 in FIG. 6). ). In addition, when the user US leaves the second range R2 as it is without entering the first range R1 after stopping the watering, the controller 110 similarly performs the watering by the cleaning water sprinkling unit 160. Let it resume. Thereby, for example, a plurality of urinal devices 100 are installed in a row, and comfort (no odor, clean bowl surface) and energy saving (water saving, power saving) even in a toilet room that is relatively frequently used according to the time of day. Can be compatible.

  Thus, in the urinal device 100, when the user US is in the first range R1, watering is not performed, and when the user US exits the first range R1, watering is performed and watering is performed. When the user US enters the second range R2 in a state where the user is in the state, the watering is stopped. Thereby, it can suppress that the water sprayed falls on the user US, and the comfort of the urinal apparatus 100 can be improved.

  For example, if wash water is sprinkled before the user of the urinal apparatus performs urination or during urination, the user may hear a shower sound or a falling sound. As a result, before performing urination, stop the approach to the urinal device and stop urination intention, or during urination, the target is not fixed and urine scatters outside the bowl, etc. It is concerned that it will give.

  On the other hand, according to the urinal device 100 according to the present embodiment, since the watering is stopped when the user US enters the second range R2, the urinal device before and during urination is performed. It is possible to suppress an unpleasant state for the user, such as stopping the approach to 100 and stopping the urination action, or urinating the urine other than the bowl portion while the target is not determined.

  In addition, when the user US leaves the urinal device 100, when the user US leaves the first range R1 narrower than the second range R2, the cleaning water supply by the cleaning water supply unit 140 and the cleaning water sprinkling are performed. Sprinkling of functional water by the unit 160 is performed. Thereby, the user US which leaves | separates from the urinal apparatus 100 can be detected at an early stage, and the preparation for the next user can be performed quickly. For example, even when the next user uses the urinal 210 immediately after urination of the user, odor can be suppressed by performing watering early. Therefore, the discomfort given to the next user can be suppressed and the comfort of the urinal device 100 can be improved.

FIG. 7 is a block diagram schematically illustrating a modification of the urinal device and the urinal unit according to the first embodiment.
As shown in FIG. 7, in the urinal apparatus 102, the human body detection unit 120 includes a first detection unit 121 and a second detection unit 122. The first detection unit 121 detects the user US in the first range R <b> 1 and inputs detection information to the control unit 110. The second detection unit 122 detects the user US in the second range R <b> 2 and inputs detection information to the control unit 110.

  The control unit 110 determines whether or not the user US is in the first range R1 based on the detection information of the first detection unit 121. Then, the control unit 110 determines whether or not the user US is in the second range R2 based on the detection information of the second detection unit 122.

  Thus, the determination whether the user US is in the first range R1 and the determination whether the user US is in the second range R2 are based on the detection information of the two detection units 121 and 122. You may go to the base. In this case, the sensor type of the second detection unit 122 may be the same as or different from the sensor type of the first detection unit 121. For example, a microwave sensor may be used for the first detection unit 121 and a laser sensor may be used for the second detection unit 122. In this case, the second range R2 is a spot-like detection range, and the area where the first range R1 is projected onto the floor surface is wider than the area where the second range R2 is projected onto the floor surface. Thus, the projected area of the second range R2 may be narrower than the projected area of the first range R1. The second range R2 only needs to be longer than the first range R1 in the distance from the urinal 210 in at least one direction.

  Further, the number of detection units provided in the human body detection unit 120 is not limited to two, and may be three or more. That is, the number of pieces of detection information output from the human body detection unit 120 may be three or more. The control unit 110 may determine the presence of the user US in three or more ranges without being limited to two.

FIG. 8 is a plan view schematically showing a modified example of the urinal device and the urinal unit according to the first embodiment.
As shown in FIG. 8, when the first detection unit 121 and the second detection unit 122 are provided in the human body detection unit 120, the first range R1 has a portion that does not overlap the second range R2. Also good. The second range R2 may not be similar to the first range R1.

  In this example, the first range R1 is a substantially symmetric detection range. On the other hand, the second range R2 is biased to the right. For example, as shown in FIG. 8, when a plurality of urinal units 10 are provided side by side on the wall surface WS of the toilet room TR, the second range R2 is biased toward the entrance ET side of the toilet room TR. Thereby, the user US heading from the entrance ET to the urinal unit 10 can be detected earlier without requiring the second detection unit 122 having an excessively wide detection range, the second detection unit 122 having a high output, or the like. be able to. For example, the user US can be detected earlier while suppressing the cost and power consumption of the second detection unit 122. Thereby, for example, it can suppress more appropriately that the water sprayed on a user, and can improve the comfort of the urinal apparatus 100 more.

  Further, in order to suppress the sprayed water from being applied to the user US, it is also effective to notify the user US of the fact that the water is being sprayed by means of notifying means (for example, lighting such as LED, sound). Is. When a plurality of urinal devices are installed in the toilet room TR in parallel, if the second range R2 is set evenly from the urinal 210 to the left-right direction, depending on the detection performance of the human body detection unit 120 Whether the user US who has entered the toilet room TR approaches the urinal 210 in the water sprinkler, or whether the user US who has finished urinating in the other urinals 210 passes the front of the urinal 210 in the water sprinkler, Judgment is difficult. By biasing the second range R2 toward the entrance ET side of the toilet room TR, only the user US approaching to use the urinal 210 is effectively notified, and watering is stopped based on the approaching state. it can.

  In the plurality of urinal devices installed in the toilet room TR, the human body detection unit that detects the movement of the user US existing on either the left side or the right side of the urinal 210 is provided. By controlling the cleaning means and the notification means based on the results, it is possible to achieve both comfort (no odor, clean bowl surface) and energy saving (water saving, power saving) even in the toilet room TR where the urinal 210 is frequently used. .

  On the contrary, only the first range R1 may be biased toward the entrance ET. For example, when one piece of detection information is output from the human body detection unit 120, both the first range R1 and the second range R2 may be biased toward the entrance ET. Thus, at least one of the first range R1 and the second range R2 may be biased rightward or leftward.

FIG. 9A and FIG. 9B are schematic views illustrating the operation of the urinal device according to the second embodiment.
FIG. 10 is a flowchart illustrating the operation of the urinal device according to the second embodiment.
As illustrated in FIG. 9A, the control unit 110 determines that the user US has entered the second range R2 in a standby state in which the user US is not in the first range R1 and the second range R2. Then, the cleaning water sprinkler 160 is driven, and functional water is sprinkled by the cleaning water sprinkler 160 (steps S21 to S23 in FIG. 10).

  The control unit 110 sprays the functional water by the cleaning water sprinkling unit 160 for a predetermined time (step S24 in FIG. 10). After performing the cleaning and watering for a predetermined time, the control unit 110 stops the operation of the cleaning water sprinkling unit 160 (Step S25 in FIG. 10).

  As illustrated in FIG. 9B, when the controller 110 determines that the user has entered the first range R1 before the predetermined time has elapsed, the controller 110 stops the operation of the cleaning water sprinkler 160 (FIG. 10). Steps S26 and S27).

  Thus, in the urinal device 100 according to the present embodiment, when the user US is in the first range R1, watering is not performed, and when the user US goes out of the first range R1, watering is performed, Water spraying is performed when the user US enters the second range R2, and water spraying is stopped when the user US enters the first range R1. Thus, by performing watering immediately before use, it is possible to suppress odor more appropriately while suppressing water sprayed on the user US. The comfort of the urinal device 100 can be further improved.

FIG. 11 is a plan view schematically illustrating the urinal device and the urinal unit according to the second embodiment.
As shown in FIG. 11, when watering is performed immediately before use, the human body detection unit 120 having the first range R1 and the second range R2 spread in the lateral direction is used. Thereby, for example, even when the user US approaching from the side is detected earlier and watering is performed immediately before use, it is possible to more appropriately suppress the water sprayed on the user US. .

  In this case, the spread angle of the second range R2 is, for example, ± 50 ° (± 40 ° or more and ± 60 ° or less). The radius of the second range R2 is, for example, not less than 0.5 m and not more than 1.5 m. Thereby, for example, the second range R2 can be expanded to the vicinity of the front of another urinal unit 10 adjacent to the side, and the user US can be detected at an early stage. As described above, the human body detection unit 120 can be realized by using, for example, a microwave sensor.

FIG. 12 is a flowchart illustrating another operation of the urinal device according to the second embodiment.
As shown in FIG. 12, the operation when the control unit 110 determines that the user US has entered the second range R2 in the standby state is the same as the operation described with reference to FIG. 10 (steps S31 to S37). .

  In this example, when it is determined that the user US is not in the second range R2 in the standby state, the control unit 110 determines whether or not a predetermined time has elapsed since the previous watering (step S38). In other words, the control unit 110 determines whether or not a predetermined time has elapsed since the previous use of the urinal 210 in the standby state.

  When it is determined that the predetermined time has elapsed since the previous watering, the control unit 110 drives the cleaning water sprinkling unit 160 and sprays the functional water by the cleaning water sprinkling unit 160. Then, the controller 110 performs the same operation as when the user US enters the second range R2.

  Thus, watering is performed when the urinal 210 has not been used for a long time. Thereby, generation | occurrence | production of an odor can be suppressed more appropriately and the comfort of the urinal apparatus 100 can be improved more.

FIGS. 13A and 13B are plan views schematically showing the urinal device and the urinal unit according to the third embodiment.
As shown in FIGS. 13A and 13B, in this example, the control unit 110 has a first range when the user US approaches the urinal 210 and when the user US moves away from the urinal 210. R1 and the second range R2 are changed.

  More specifically, the control unit 110 makes the first range R1 when the user US approaches the urinal 210 wider than the first range R1 when the user US leaves the urinal 210. Similarly, the control unit 110 makes the second range R2 when the user US approaches the urinal 210 wider than the second range R2 when the user US leaves the urinal 210.

  In other words, the control unit 110 includes the first range R1 and the second range R2 that are used when the user US approaches the urinal 210, the third range R3 that is used when the user US leaves the urinal 210, and the third range R3. 4 range R4. For example, the control unit 110 sets four threshold values for the detection information from the human body detection unit 120.

  The movement of the user US when approaching the urinal 210 is relatively fast because of the urine intention. On the other hand, since it requires work to correct the feeling of relief after urination and the disorder of clothes, the movement of the user US when leaving the urinal 210 is often slower than when approaching.

  For this reason, the detection range when the user US approaches is widened. Thereby, for example, it can suppress more appropriately that the water sprayed on user US. Then, the detection range when the user US leaves is narrowed. Thereby, for example, preparation for the next user can be performed quickly, and odor can be suppressed more appropriately. Therefore, the comfort of the urinal device 100 can be further improved. In this example, both the first range R1 and the second range R2 are changed. Without being limited thereto, only one of the first range R1 and the second range R2 may be changed. That is, the control unit 110 may change at least one of the first range R1 and the second range R2 when the user US approaches the urinal 210 and when the user US moves away from the urinal 210.

The embodiment of the present invention has been described above. However, the present invention is not limited to these descriptions. As long as the features of the present invention are provided, those skilled in the art appropriately modified the design of the above-described embodiments are also included in the scope of the present invention. For example, the shape, size, material, arrangement, etc. of each element included in the urinal unit 10 and the urinal device 100 and the installation form of the urinal unit 10 and the urinal device 100 are not limited to those illustrated. And can be changed as appropriate.
Moreover, each element with which each embodiment mentioned above is provided can be combined as long as technically possible, and the combination of these is also included in the scope of the present invention as long as it includes the features of the present invention.

  DESCRIPTION OF SYMBOLS 10 Urinal unit, 100,102 Urinal apparatus, 110 Control part, 120 Human body detection part, 121 1st detection part, 122 2nd detection part, 130 Flow path switching valve, 140 Washing water supply part, 141 Spreader, 143 Spreader Flow path, 145 spout, 150 functional water generating part, 160 washing water sprinkling part, 161 sprinkling part, 161a sprinkling hole, 163 tube, 210 urinal, 211 bowl part, 213 trap part

Claims (5)

A flush water sprinkling part having a sprinkling hole for sprinkling water in the space inside the bowl part of the urinal;
A human body detection unit for detecting a user;
A control unit for controlling the washing water sprinkling unit;
With
The control unit does not perform the watering when the user is in the first range, performs the watering when the user leaves the first range, and the user performs the watering less than the first range. The urinal device characterized by performing the watering or stopping the watering when entering a second range having a long distance from the toilet.   The urinal device according to claim 1, wherein the control unit stops the watering when the user enters the second range in a state where the watering is being performed.   2. The urinal apparatus according to claim 1, wherein the control unit performs the watering when the user enters the second range, and stops the watering when the user enters the first range. .   The said control part changes at least one of the said 1st range and the said 2nd range by the time when a user approaches the said urinal and leaves | separates from the said urinal, The 1-3 characterized by the above-mentioned. The urinal device according to any one of the above.   The urinal device according to any one of claims 1 to 4, wherein at least one of the first range and the second range is biased rightward or leftward.

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