JP3207443U - urinal - Google Patents

Abstract

The present invention provides a urinal capable of suppressing the generation of odor and pollution itself, improving hygiene, and creating a comfortable environment. In a urinal 100, a pair of bowl side walls 19 projecting forward from both sides of a bowl back wall 17 are connected to a bowl ceiling wall 21 and a bowl bottom wall 23 projecting forward from the upper and lower sides of the bowl back wall 17. The urinal body 11 is formed with an inner space 33 surrounded by the bowl back wall inner surface 25, the bowl side wall inner surface 27, the bowl ceiling wall inner surface 29 and the bowl bottom wall inner surface 31, and the inner space 33 forms an opening 35 on the front surface. And a washing water discharge port 41 that opens to the upper part of the bowl back wall inner surface 25 and is connected to the washing water supply pipe 45, and a merging nozzle that is connected to the washing water supply pipe 45, soy lecithin and plants from the merging nozzle And a spraying device for spraying and joining a solution obtained by dissolving the essential oil derived from ethanol in washing water. [Selection] Figure 5

Description

  The present invention relates to a urinal.

  For example, when a urinal is installed in a factory building such as pharmaceuticals and foods, it is necessary to consider hygiene. That is, it is important to prevent contamination of the product by microorganisms such as bacteria and viruses from the urinal. Also, the odor generated by urination in a urinal creates an unpleasant environment. For this reason, various proposals have been made to make the use of urinals comfortable, such as measures against deodorization.

  For example, in Patent Document 1, as a method for preventing urinary stone adhesion in flush urinal equipment, a chemical solution injection device is attached to a water supply pipe of a urinal, and a chemical solution having a predetermined concentration is supplied to a predetermined amount of water for one wash. There is disclosed a method for preventing urine stone adhesion, disinfection, deodorization and the like by quantitative injection at a ratio. Patent Document 2 discloses a paint containing an inorganic pigment and ceramic powder in a liquid component containing a fiber, for example, a paint obtained by kneading and diffusing lime, diatomaceous earth and an inorganic pigment in milk, on an organic coating film having a strong odor. An anti-odor coating that absorbs and blocks odors from building materials and odors emitted from organic coatings by applying to the coating is disclosed.

  On the other hand, a urinal with a lid has been proposed for the purpose of creating a comfortable environment. For example, Patent Document 3 discloses a urinal cleaning device provided with a lid that covers a case in which a urinal is disposed so as to be openable and closable, and a cleaning water supply mechanism that supplies cleaning water to the urinal covered with the lid. It is disclosed. Further, Patent Document 4 discloses a urinal with an automatic opening / closing lid provided with a lid that automatically opens and closes based on human body detection in a urinal having an opening on the front surface.

JP 2003-155768 A JP 2001-219118 A JP-A-6-136799 Japanese Utility Model Publication No. 7-12576

  However, the above-described method for preventing urinary stone adhesion of flush urinal equipment reliably prevents urine stone from adhering to the urinal equipment by accurately maintaining a pH suitable for preventing urinary stone adhesion. Suppresses corrosion of toilet facilities and drains. That is, it is intended only for the prevention of urine stone adhesion. For this reason, there is no direct deodorizing effect or antibacterial effect. In addition, the above-mentioned deodorant paint absorbs and blocks odors from building materials and odors emitted from organic paints when applied on a strong odor organic coating film. That is, the object is to absorb and block odors from the object to be coated and the paint itself. For this reason, the deodorizing effect does not reach the urinal itself. The urinal is in an environment that is easily contaminated by odors, bacteria, viruses, and the like. Conventionally, in such equipment, the odor has been dealt with by a commercially available deodorant or the like. In addition, microbial contamination was dealt with by regular cleaning. Therefore, in particular, the equipment described above has improved deodorization and antibacterial effects from the standpoint of preventing contamination by microorganisms such as bacteria and viruses, as well as taking measures against deodorization, as well as reducing the effort of distributing deodorant and periodic cleaning. There is a request.

  On the other hand, the urinal provided with the above-mentioned lid is a cover for cleaning the urinal body or for preventing odor diffusion. That is, it is a structure that covers the inside surface of the urinal so that it cannot be seen, and has no function to prevent “soiling”. Therefore, generation | occurrence | production of the odor and pollution itself was not able to be suppressed.

  The present invention has been made in view of the above situation, and an object of the present invention is to provide a urinal capable of suppressing the generation of odor and contamination itself, improving hygiene, and creating a comfortable environment.

Next, means for solving the above problems will be described with reference to the drawings corresponding to the embodiments.
The urinal 100 according to the first aspect of the present invention includes a bowl ceiling wall 21 and a bowl bottom wall in which a pair of bowl side walls 19 projecting forward from both sides of the bowl back wall 17 project forward from the upper and lower sides of the bowl back wall 17. 23, an inner space 33 surrounded by the bowl back wall inner surface 25, the bowl side wall inner surface 27, the bowl ceiling wall inner surface 29 and the bowl bottom wall inner surface 31 is formed. The inner space 33 is an opening 35 on the front surface. Urinal body 11 to be,
A cleaning water discharge port 41 which is opened at an upper portion of the inner surface 25 of the bowl back wall and to which a cleaning water supply pipe 45 is connected;
An injection device 59 that has a merging nozzle 61 connected to the washing water supply pipe 45 and sprays and merges a solution 71 obtained by dissolving soybean lecithin and plant-derived essential oil in ethanol from the merging nozzle 61 into washing water;
It is characterized by comprising.

  In the urinal 100, a solution 71 obtained by dissolving soy lecithin having a deodorizing effect and plant-derived essential oil in ethanol is joined by spraying from the joining nozzle 61 into the washing water of the washing water supply pipe 45. The cleaning water discharged from the cleaning water discharge port 41 conveys the solution 71 to the bowl back wall inner surface 25, the bowl side wall inner surface 27, and the bowl bottom wall inner surface 31. The solution 71 transported to each inner surface of the urinal 100 traps odor. The cleaning water and the solution 71 discharge new urine and other odor sources, residual cleaning water containing the odor source, and the like from the inner space 33 through the drain port 55 while trapping the odor.

The urinal 100 according to claim 2 of the present invention is the urinal 100 according to claim 1,
A concave portion 53 is formed in the bowl back wall inner surface 25 in the vicinity of a drain port 55 provided in the bowl bottom wall inner surface 31.
A tablet 57 containing an aroma component and dissolved by running water by urine or urination is fitted and fitted into the recess 53.

  In the urinal 100, the tablet 57 attached to the recess 53 serves as a urination position target (urination target). Urine at the time of urination lands at an optimal position on the inner surface 25 of the bowl back wall, for example, a position where the urine quickly flows down to the drain port 55, and spreads widely in the inner space 33 or hardly scatters outside the inner space. The tablet 57 contains a fragrance component, and part of the tablet 57 is dissolved by running water after use, and foams, so that the fragrance component is released and the odor is trapped.

The urinal 100 according to claim 3 of the present invention is the urinal 100 according to claim 1 or 2,
The urinal body 11 has a deodorizing coating,
The deodorizing coating film is
Particles A obtained by dispersing an inorganic antibacterial agent in a suspension obtained by adding a surfactant to a pH-sensitive polymer that dissolves in an acidic region to obtain a water-dispersed solution, and then spray-drying particles A;
A dispersion of an inorganic antibacterial agent surface-treated with an organic acid in a suspension of a pH-sensitive polymer that dissolves in a basic region to obtain an aqueous dispersion, and then spray-dried particles B.
An aqueous coating agent in which the particles A and the particles B are dispersed in an aqueous dispersion solution containing a cellulose derivative and a highly branched cyclic dextrin is solidified to form at least the bowl back wall inner surface 25 of the urinal body 11, a bowl It is attached to the side wall inner surface 27, the bowl ceiling wall inner surface 29, and the bowl bottom wall inner surface 31.

  In the urinal 100, the acidic odor is trapped via a pH sensitive polymer that is an acidic and soluble coating agent. The alkaline odor is trapped through a pH sensitive polymer which is a basic and soluble coating agent. That is, a deodorizing coating film is formed using one coating material instead of separately for alkaline odor and acidic odor. Thereby, the deodorizing coating film can obtain a deodorizing effect of a wide range of odors by an easy film forming operation. Furthermore, since the particle A and the particle B contain an inorganic antibacterial agent such as silver zeolite, the deodorizing coating film can further exhibit the antibacterial effect due to this in addition to the deodorizing effect. A coating material having deodorizing and antibacterial effects is coated on at least the bowl back wall inner surface 25, the bowl side wall inner surface 27, the bowl ceiling wall inner surface 29, and the bowl bottom wall inner surface 31. Thereby, it becomes possible to express the deodorizing effect and the antibacterial effect in almost the area where the odor comes into contact.

The urinal 100 according to claim 4 of the present invention is the urinal 100 according to claim 3,
The highly branched cyclic dextrin is cyclodextrin or cluster dextrin,
The pH sensitive polymer that dissolves in the acidic region is aminoalkyl methacrylate copolymer E, polyvinyl acetal diethylaminoacetate,
The pH-sensitive polymer that dissolves in the basic region is methacrylic acid copolymer LD and hydroxypropylmethylcellulose phthalate.

  In the urinal 100, a firm coating can be formed. Moreover, it becomes a beautiful film. Furthermore, since the deodorized coating film has a fine porous coating structure, the deodorizing effect and the antibacterial effect gradually develop over time.

A urinal 100 according to claim 5 of the present invention is the urinal 100 according to any one of claims 1 to 4,
A door member 39 provided in the urinal body 11 that closes at least a part of the opening 35 in the closed position to disable the urination operation and opens the part in the open position to enable the urination operation; ,
A driving device for opening and closing the door member 39;
A foot switch 51 provided on the floor surface in front of the urinal body 11 to detect a predetermined standing position when the urinal user uses the urinal;
A human body detection sensor 49 provided on the bowl ceiling wall 21 for detecting a urinal user standing at the predetermined standing position when using the urinal;
A control device for opening and closing the door member 39 by drivingly controlling the drive device based on detection signals of the foot switch 51 and the human body detection sensor 49;
It is characterized by comprising.

  In the urinal 100, when the urinal user stands at a predetermined standing position, the foot switch 51 detects the presence of the urinal user, the drive device is controlled by the control device, and the door member 39 is opened. . After use, the human body detection sensor 49 detects the absence of the urinal user, the drive device is controlled by the control device, and the door member 39 closes a part of the opening 35. Therefore, the urinal 100 can be used only when the urinal user stands in a predetermined standing position. Thus, the user has a consciousness of standing at a predetermined standing position determined toward the urinal 100. Therefore, scattering of urine outside the urinal due to the use of the urinal 100 outside the predetermined standing position is suppressed.

  According to the urinal of Claim 1 which concerns on this invention, generation | occurrence | production of an odor and pollution itself can be suppressed, a sanitary surface can be improved, and a comfortable environment can be created.

  According to the urinal according to claim 2 of the present invention, the tablet serves as a urination target, which makes the urinal user aware of the direction of urination, and prevents the urine from being scattered outwards, Deodorization by components becomes possible.

  According to the urinal of Claim 3 which concerns on this invention, an odor is trapped and the comfortable urinal with a favorable environment can be obtained. Further, the antibacterial action can suppress contamination of microorganisms such as bacteria and viruses from the urinal.

  According to the urinal of Claim 4 which concerns on this invention, the deodorizing coating film which maintains a deodorizing effect and an antimicrobial effect over a long period of time can be formed easily.

  According to the urinal according to claim 5 of the present invention, the urinal user can be conscious of standing in an optimum position toward the urinal, and urine does not jump out of the urinal. , Can suppress the dirt around the toilet, and deodorize.

1 is an external perspective view of a urinal according to an embodiment of the present invention. It is a perspective view at the time of the door member opening of the urinal shown in FIG. It is a front view of the urinal shown in FIG. It is a top view of the urinal shown in FIG. It is a longitudinal cross-sectional view of the urinal shown in FIG. It is the structure explanatory drawing which represented the injection apparatus connected to the urinal shown in FIG. 1 with the principal part enlarged view. It is a longitudinal cross-sectional view of the urinal based on the modification which used the door member as the shutter-type closure lid. It is a top view of the shutter-type closure lid of the urinal concerning the modification shown in Drawing 7 in a closed state.

Hereinafter, embodiments according to the present invention will be described with reference to the drawings.
FIG. 1 is an external perspective view of a urinal 100 according to an embodiment of the present invention.
The urinal 100 according to the present embodiment includes a urinal body 11. The urinal body 11 is fixed to the wall surface 13 of the toilet booth at a position that is raised by a predetermined height from the floor 15. The urinal body 11 has a pair of bowl side walls 19 projecting forward from both sides of the bowl back wall 17, and a bowl ceiling wall 21 and a bowl bottom wall 23 projecting forward from the upper and lower sides of the bowl back wall 17. The bowl ceiling wall 21 and the bowl bottom wall 23 connect the upper parts and the lower parts of the pair of bowl side walls 19 to each other. The urinal body 11 has an inner space 33 surrounded by a bowl back wall inner surface 25, a bowl side wall inner surface 27, a bowl ceiling wall inner surface 29 (see FIG. 5), and a bowl bottom wall inner surface 31 (see FIG. 5). The front surface of the urinal body 11 is an opening 35 of the inner space 33.

  A door member 39 is attached to the front edges of the pair of bowl side walls 19 via a hinge 37 slightly below the center in the vertical direction. The door member 39 is opened and closed by a driving device (not shown). The drive device is configured by, for example, a drive motor inscribed in a hinge 37, a drive link mechanism, and the like. In this drive device, the drive of the drive motor is controlled by a control device (not shown).

  The pair of door members 39 closes or opens slightly below the center of the opening 35 by opening and closing. In the state where the door member 39 is closed, the urinal body 11 remains in a state where the upper and lower portions of the opening 35 are opened with the door member 39 interposed therebetween. As described above, the door member 39 closes at least a part of the opening 35 in the closed position to disable the urination operation, and retreats the part that opens the part and separates the opening 35 in the open position. The urination operation in the unit 35 is enabled. That is, the door member 39 does not have a function of completely closing the opening 35. That is, the door member 39 is a means for determining whether or not to urinate.

FIG. 2 is a perspective view of the urinal 100 shown in FIG. 1 when the door member is opened.
The door member 39 opens all the openings 35 in the open state. In the present embodiment, the opened opening 35 is a substantially inverted triangular opening surface. The inner space 33 is surrounded by the bowl back wall inner surface 25 on the back side, the left and right sides thereof are surrounded by the bowl side wall inner surface 27, and the upper and lower sides are surrounded by the bowl ceiling wall inner surface 29 and the bowl bottom wall inner surface 31.

  The pair of bowl side walls 19 is formed with a leading edge with an inclination in which the protruding length from the bowl back wall 17 gradually increases toward the lower part. Moreover, the bowl back wall 17 is formed in the curved surface which protrudes gradually ahead toward the lower part (refer FIG. 5). Therefore, the urinal body 11 has a structure in which the inner space 33 in the lower part is narrow on the left and right sides and deep on the back side, and urine is not easily scattered outside.

FIG. 3 is a front view of the urinal 100 shown in FIG.
In the urinal body 11, a cleaning water discharge port 41 that discharges cleaning water is opened above the inner surface 25 of the bowl back wall. The washing water discharge port 41 is connected to a washing water supply pipe 45 that is piped to the bowl back wall outer surface 43 (see FIG. 5). A human body detection sensor 49 is attached to the ceiling wall outer surface 47 of the bowl ceiling wall 21. The human body detection sensor 49 detects a urinal user standing at a predetermined standing position in front of the urinal body 11 and outputs a signal indicating human body detection. Accordingly, the human body detection sensor 49 outputs a detection signal indicating no human body detection when the urinal user is not at a predetermined standing position.

FIG. 4 is a plan view of the urinal 100 shown in FIG.
A pair of left and right foot switches 51 are provided on the floor 15 in front of the urinal body 11. The foot switch 51 detects a predetermined standing position when the urinal user uses the urinal. The foot switch 51 can be easily identified by a person with a shape, color, etc. that are easily visible. The position of the foot switch 51 is set at a position where urine is most difficult to scatter in the inner space 33 when the urinal user urinates. Therefore, a urinal user standing with both feet placed on the pair of foot switches 51 can use the urinal 100 at a position where urine is least likely to scatter. The foot switch 51 can be a pressure-sensitive sensor that operates according to the weight of the urinal user.

  The urinal 100 has a control device. The control device can be configured by, for example, a computer or a programmable sequencer. The control device is electrically connected to the drive device, the human body detection sensor 49, and the foot switch 51. A detection signal indicating whether or not a urinal user is present is input to the control device from the human body detection sensor 49 and the foot switch 51. The control device drives and controls the control device based on this input signal, and controls the opening and closing of the door member 39.

FIG. 5 is a longitudinal sectional view of the urinal 100 shown in FIG.
The urinal body 11 is formed with a recess 53 in the lower part of the bowl back wall inner surface 25. The recess 53 is located in the vicinity of the drain port 55 provided in the bowl bottom wall inner surface 31. A tablet 57 that contains an aromatic component and dissolves while being foamed by running water by washing water or urination is fitted and fitted into the recess 53. The tablet 57 is formed with a diameter of about 3 cm and a thickness of about 1 cm, for example.

  The tablet 57 is made of an organic acid such as citric acid, a basic substance such as sodium hydrogen carbonate (sodium bicarbonate), and the foaming material and the aromatic component such as a plant-derived essential oil or the like. Additives can be blended accordingly.

  In the present embodiment, the case where the holding means for the tablet 57 is the concave portion 53 will be described as an example, but the tablet holding means may be a convex portion. The convex part may be singular or plural. In the case of a single convex portion, the tablet 57 is formed in an annular shape, and the convex portion can be inserted into the inner hole and held. In the case of a plurality of convex portions, the outer periphery of the disk-shaped tablet 57 can be supported and held from below at a plurality of locations.

FIG. 6 is a configuration explanatory view showing the injection device 59 connected to the urinal 100 shown in FIG.
The urinal 100 includes an injection device 59. The injection device 59 includes a merging nozzle 61, a fragrance tank 63, and an air compressor 65. The merge nozzle 61 is connected to the middle of the cleaning water supply pipe 45. The merge nozzle 61 passes through a part of the wall of the cleaning water supply pipe 45 and opens at the inner wall of the cleaning water supply pipe 45. A fragrance supply pipe 67 and an air supply pipe 69 are connected to the merge nozzle 61. The fragrance supply pipe 67 is connected to the fragrance tank 63. The fragrance tank 63 stores a solution 71 obtained by dissolving soybean lecithin, which is a fragrance, and plant-derived essential oil such as Cypress in ethanol. The air supply pipe 69 is connected to the air compressor 65. The air compressor 65 causes a siphon effect by pumping air and sucks the solution 71 from the fragrance tank 63. The sucked solution 71 is mixed with air in the merging nozzle before jetting, and jetted into the cleaning water from the nozzle port 73 in the state of being atomized. That is, the injection device 59 can be a siphon system.

  By the way, the urinal body 11 has a deodorizing coating film. The deodorizing coating is coated on at least a part of the surface of the urinal body 11, for example, the bowl back wall inner surface 25, the bowl side wall inner surface 27, the bowl ceiling wall inner surface 29, and the bowl bottom wall inner surface 31. The deodorizing coating comprises particles A composed of a pH-sensitive polymer that dissolves in the acidic region and an inorganic antibacterial agent included in the pH-sensitive polymer, a pH-sensitive polymer that dissolves in the basic region, and a high pH-sensitive polymer. And particles B composed of an inorganic antibacterial agent included in the molecule. The deodorizing coating film is obtained by solidifying an aqueous coating agent in which the particles A and B are dispersed in an aqueous dispersion solution containing a cellulose derivative and a highly branched cyclic dextrin, and is applied to the surface to be coated.

  The pH-sensitive polymer that dissolves in the acidic region constituting the deodorized coating film is preferably an aminoalkyl methacrylate copolymer (trade name: Eudragit EPO) or polyvinyl acetal diethylaminoacetate.

  The inorganic antibacterial agent is preferably silver zeolite having a deodorizing and antibacterial action. Silver zeolite is known to perform sterilization and deodorization. For example, Zeomic (registered trademark: Sinanen Co., Ltd.) is used.

  Moreover, it is preferable that the pH sensitive polymer which melt | dissolves in the basic area | region which comprises a deodorizing coating film is methacrylic acid copolymer LD (brand name: Eudragit L30D-55) and hydroxypropyl methylcellulose phthalate. In addition, hydroxypropyl methylcellulose phthalate (HPMCP) is easily dissolved in the range of pH 5 to pH 5.5 depending on the substitution degree of the phthalyl group.

  The deodorizing coating film is acidic and dissolves even in alkali (basic). Regarding deodorization, the alkaline odors of ammonia and amines are dissolved in the basic pH-sensitive polymer of the particle B, and the acidic odors of hydrogen sulfide and butyric acid are dissolved in the acidic pH-sensitive polymer of the particle A, respectively. The odor is trapped. These particles have a structure in which silver zeolite is coated in a film form so as to react with each of alkali and acid. This is a structure in which a pH-sensitive polymer is wrapped around a known cyclodextrin or silver zeolite as a coating material. As a result, the pH-sensitive polymer as the coating material dissolves and reacts with an acidic odor or an alkaline odor, and traps, that is, traps these odors.

<Highly branched cyclic dextrin>
The highly branched cyclic dextrin constituting the deodorized coating film is preferably a cyclodextrin or cluster dextrin (Ezaki Glico Co., Ltd .: registered trademark) having a deodorizing action. Cluster dextrin has a cyclic structure, and a deodorizing effect can be obtained by trapping the odor in the ring.

  By the way, antibacterial is defined as “a state that suppresses bacterial growth on the surface of a product” (JIS Z 2801 (ISO22196)). Antibacterial agents make bacteria difficult to live by allowing them to live only for a certain period of time or not to grow any longer. Thus, an antibacterial agent does not kill or reduce bacteria, but suppresses proliferation. That is, the deodorizing coating film can reduce the number of objects such as objects and liquids, and the number of microorganisms contained in a limited space, and can increase the cleanliness.

  A highly branched cyclic dextrin is composed of a dextrin reduced in size by hydrolyzing a part of starch that is formed by, for example, binding of a large number of glucoses, and has a cyclic part in the structure. It has a lot of branches. This highly branched cyclic dextrin has the following characteristics. It is also easily digested by digestive enzymes in the body. That is, the safety to the human body is high. Narrow molecular weight distribution compared to other dextrins. High solubility in water and well soluble in cold water. That is, the work of coating (coating film formation) becomes easy. Good stability, hard to age and low viscosity. Because it is a polymer and has a uniform molecular weight, it hardly generates osmotic pressure. There is almost no miscellaneous taste or sweetness, and there is no powdery odor derived from starch. This highly branched cyclic dextrin can be produced, for example, by allowing a branching enzyme, which is an enzyme, to act on corn starch.

  Cyclodextrin is a kind of cyclic oligosaccharide in which several molecules of D-glucose are linked by α-glucoside bonds to form a cyclic structure. Cyclodextrins are known to have 5 or more glucose bound thereto. In general, 6 to 8 glucoses are bound, each having 6 bonds is α-cyclodextrin (cyclohexaamylose), and 7 are bound to β-cyclodextrin ( Cycloheptaamylose), which has 8 bonds, is called γ-cyclodextrin (cyclooctaamylose).

  The cyclodextrin can be obtained by allowing cyclomaltodextrin glucanotransferase extracted from bacteria such as Bacillus, Brevibacterium, and Corynebacterium to act on starch. That is, it can be obtained by active decomposition of starch. Cyclodextrins are stable to bases and much more stable to acids than starches and other oligosaccharides. Also, degradation by α-amylase is considerably slower than starch. It is not degraded by β-amylase. It is also quite stable against heat and stable even when heated to about 200 ° C. The solubility of cyclodextrin in water is 14.5 g / 100 ml for α form, 1.8 g / 100 ml for β form and 23.2 g / 100 ml for γ form at 25 ° C., and β form has low solubility.

  The inside of the cyclic structure of cyclodextrin is a pore having a size that allows inclusion of other relatively small molecules. Since the hydroxy group of cyclodextrin is outside the pores, the inside of the pores is hydrophobic, and it is easy to include hydrophobic molecules. By utilizing this, a hydrophobic substance can be included in cyclodextrin so as to be dissolved in water, or a substance that easily reacts with water or oxygen can be protected.

[Deodorization Coating Method]
The film formation method of the deodorizing coating film is generally obtained by dispersing an inorganic antibacterial agent in a suspension obtained by adding a surfactant to a pH-sensitive polymer that dissolves in an acidic region to obtain an aqueous dispersion, and then spraying Dry to obtain particles A. In addition, an inorganic antibacterial agent surface-treated with an organic acid is dispersed in a suspension of a pH-sensitive polymer that dissolves in a basic region to obtain an aqueous dispersion, followed by spray drying to obtain particles B. Next, the particles A and the particles B are uniformly dispersed in an aqueous dispersion containing an ethyl cellulose aqueous suspension, a component of hydroxypropylmethylcellulose, cyclodextrin or cluster dextrin to obtain an aqueous coating agent as a coating material. And after apply | coating this water-system coating agent on the surface of an odor contact member, it solidifies on a to-be-coated surface by heat processing, and forms a deodorizing coating film.

<Particle A>
More specifically, the deodorized coating film is obtained by coating (coating) a coating material having a deodorizing effect and an antibacterial action on the surface of the odor contact member. The coating material includes particles A composed of a coating agent (for example, Eudragit EPO) that dissolves in an acidic region of pH and silver zeolite. Specifically, Eudragit EPO: 100 parts, sodium lauryl sulfate: 10 parts, stearic acid: 15 parts and talc: 35 parts are made into a uniform suspension with water: 240 parts. Silver zeolite is dispersed here to produce a uniform aqueous dispersion. This water-dispersed solution is made into the solid particle A used as the structure by which Eudragit EPO was included in the silver zeolite using the spray-drying apparatus.

<Particle B>
Further, the coating material includes particles B composed of a coating agent (for example, Eudragit L30D-55) whose pH is dissolved in a basic region and silver zeolite which has been surface-treated with an organic acid (for example, succinic acid) in advance. To do. Specifically, Eudragit L30D-55: 100 parts, triethyl citrate; 20 parts and talc: 50 parts are made into a uniform suspension solution with water: 100 parts. The silver zeolite surface-treated with an organic acid is dispersed here to produce a uniform aqueous dispersion. This water-dispersed solution is made into the solid particle B used as the structure by which Eudragit L30D-55 was included by the silver zeolite using the spray-drying apparatus.

  The coating material is an aqueous suspension of ethyl cellulose (as the water-insoluble polymer, for example, ethyl cellulose (particularly ethyl cellulose aqueous dispersion (for example, trade name: Aquacoat, manufactured by FMC)). )), Hydroxypropyl methylcellulose (HPMC) and a water-based coating agent uniformly dispersed in an aqueous dispersion containing cyclodextrin or cluster dextrin components.

  The film forming method of the deodorizing coating film is applied to the odor contact member using this water-based coating agent, and then formed into a film on the surface of the odor contact member by a heat treatment (for example, at 65 ° C. for 10 minutes) and solidified. A deodorized coating film is obtained. For the application, painting means such as brush coating, spraying, dipping, roll coating, and printing can be used. The application can be performed once or several times, that is, a multi-layer structure can be formed. Since it is applied as a coating material, a stable coating film is formed by applying heat to the coating material in the coating film state. The heat treatment is after painting and can be performed by using an instrument such as a dryer.

<Spray drying>
In the spray drying for obtaining the solid particles A and the solid particles B, the above-mentioned aqueous dispersion solution is sprayed into a gas and rapidly dried to produce a dry powder. In this configuration, high-temperature (about 250 ° C.) air is used as the gas used for drying of the spray drying apparatus. Spray drying is also referred to as spray drying or spray drying, and is preferred when drying materials that are easily damaged by heat, such as foods and pharmaceuticals. Moreover, spray drying can obtain a stable particle size distribution. Spray drying can be used as a drying medium by heating air. Therefore, the film formation cost can be reduced. In addition, spray drying may use nitrogen gas or the like as a drying medium when a flammable liquid such as ethanol is used as a solvent or an oxygen-sensitive product. For spray drying, a droplet size of 10 to 500 μm can be selected depending on the application. Note that the deodorizing coating film of this configuration example may be one in which the solution 71 or the suspension is solidified by evaporation without being particularly heated after the liquid stream is applied by spraying. By this spray drying, particles in which the pH-sensitive polymer is coated on the surface of the silver zeolite, that is, particles in which the silver zeolite is included in the pH-sensitive polymer are obtained.

Next, the operation of the above configuration will be described.
In the urinal according to the present embodiment, a solution 71 in which soybean lecithin having a deodorizing effect and plant-derived essential oil are dissolved in ethanol is joined from the joining nozzle 61 into the washing water of the washing water supply pipe 45 by spraying. The cleaning water discharged from the cleaning water discharge port 41 conveys the solution 71 to the bowl back wall inner surface 25, the bowl side wall inner surface 27, and the bowl bottom wall inner surface 31. The solution 71 transported to these inner surfaces traps odor. The cleaning water and the solution 71 trap the odor, and the scent of the essential oil stands, and fresh urine and other odor sources, residual cleaning water containing the odor source, etc. are discharged from the inner space 33 to the outside through the drain port 55. Discharge.

  Further, in the urinal 100, the tablet 57 mounted in the recess 53 serves as a target at the urination position, that is, a urination target for the urinal user. The urine at the time of urination lands at a position where it quickly flows down to the drain outlet 55, which is the optimum position on the inner surface 25 of the bowl back wall, and is difficult to diffuse widely in the inner space 33 or to be scattered outside the inner space. Become. The tablet 57 contains an aroma component, and part of the tablet 57 is dissolved by the momentum of urination and running water after use, and the aroma component is released accordingly, and the odor is trapped. In addition, foaming is performed with sodium carbonate or the like at the time of dissolution, and washing with this foam is also performed. As a result, the tablet 57 becomes a urination target, and urine scattering to the outside is suppressed, and deodorization by an aroma component is possible. The tablet 57 gradually dissolves with the frequency of use and eventually disappears, but the tablet 57 is newly attached to the recess 53.

  In the urinal 100, an acidic odor is trapped via a pH sensitive polymer that is an acidic and soluble coating agent. The alkaline odor is trapped through a pH sensitive polymer which is a basic and soluble coating agent. That is, a deodorizing coating film is formed using one coating material instead of separately for alkaline odor and acidic odor. Thereby, the deodorizing coating film can obtain a deodorizing effect of a wide range of odors by an easy film forming operation. Furthermore, since the particle A and the particle B contain an inorganic antibacterial agent such as silver zeolite, the deodorizing coating film can further exhibit the antibacterial effect due to this in addition to the deodorizing effect. A coating material having deodorizing and antibacterial effects is coated on at least the bowl back wall inner surface 25, the bowl side wall inner surface 27, the bowl ceiling wall inner surface 29, and the bowl bottom wall inner surface 31. Thereby, it becomes possible to express the deodorizing effect and the antibacterial effect in almost the area where the odor comes into contact. As a result, it is possible to obtain a urinal that traps odor and has a good environment (comfortable). Further, the antibacterial action can suppress contamination of microorganisms such as bacteria and viruses from the urinal.

  Further, the urinal 100 can form a firm coating. Moreover, it becomes a beautiful film. Furthermore, since the deodorized coating film has a fine porous coating structure, the deodorizing effect and the antibacterial effect gradually develop over time. As a result, it is possible to easily form a deodorizing coating film that maintains a deodorizing effect and an antibacterial effect over a long period of time.

  Further, in the urinal 100, when the urinal user stands at a predetermined standing position, the foot switch 51 detects the presence of the urinal user, the drive device is controlled by the control device, and the door member 39 is opened. The After use, the human body detection sensor 49 detects the absence of the urinal user, the drive device is controlled by the control device, and the door member 39 closes a part of the opening 35. Therefore, the urinal can be used only when the urinal user stands in a predetermined standing position. As a result, the user has a consciousness of standing at a predetermined standing position determined toward the urinal. Therefore, scattering of urine outside the urinal due to the use of the urinal outside the predetermined standing position is suppressed. As a result, the urinal user can be conscious of standing in an optimal position toward the urinal, urine will not jump out of the urinal, dirt around the urinal can be suppressed, and deodorization can be achieved. .

Next, a modification of the above configuration will be described.
FIG. 7 is a longitudinal sectional view of a urinal 100A according to a modified example in which the door member 39 is a shutter-type closing lid 75, and FIG. 8 is a state in which the shutter-type closing lid 75 of the urinal 100A according to the modified example shown in FIG. FIG.
In the urinal 100 </ b> A according to the modification, the door member 39 includes a shutter-type closing lid 75. Other configurations are the same as the urinal 100 described above. The shutter-type closing lid 75 has flexibility such that a plurality of slats 77 are connected and can be wound, for example. The shutter-type closing lid 75 can be wound around a winding storage portion 79 built in the bowl ceiling wall 21. In this case, the urinal body 11 is provided with guide rails 81 for guiding both edges of the shutter-type closing lid 75 on the pair of bowl side walls 19.

  The take-up storage unit 79 is provided with a shaft 83 for taking up and feeding out the shutter-type closing lid 75. The shaft 83 is rotationally driven by a drive device having a drive motor. The drive of this drive device is controlled by a control device connected to the foot switch 51 and the human body detection sensor 49 in the same manner as the above configuration. That is, when the presence of the urinal user is detected by the foot switch 51, the driving device operates to wind the shutter-type closing lid 75 and open the opening 35. When the human body detection sensor 49 detects the absence of the urinal user, the driving device is driven, the shutter-type closing lid 75 is extended, and a part of the opening 35 is closed.

  According to the urinal 100A according to this modification, the shutter-type closing lid 75 does not pop out from the front edge of the bowl side wall 19 by opening and closing, and interference with the urinal user can be prevented.

  Therefore, according to the urinals 100 and 100A according to the present embodiment, it is possible to suppress the generation of odor and contamination itself, improve the hygiene, and create a comfortable environment.

  The door member 39 and the shutter-type closing lid 75 described above are not limited as long as they close a part of the opening 35 of the urinal 100 and are opened when the presence of the urinal user is detected. For example, as a sliding door-like structure, the door is slid in the left-right direction, or the door is swing-moved in the left-right direction.

  In the above-described embodiment, Cypress is used as the essential oil. However, as the scent component, other essential oil may be used. For example, the scent is changed by replacing the fragrance tank 63. Further, the fragrance component of the tablet 57 may also be configured with a favorite fragrance or the like.

DESCRIPTION OF SYMBOLS 11 ... Urinal body 17 ... Bowl back wall 19 ... Bowl side wall 21 ... Bowl ceiling wall 23 ... Bowl bottom wall 25 ... Bowl back wall inner surface 27 ... Bowl side wall inner surface 29 ... Bowl ceiling wall inner surface 31 ... Bowl bottom wall inner surface 33 ... Inside Directional space 35 ... Opening portion 39 ... Door member 41 ... Washing water discharge port 45 ... Washing water supply pipe 49 ... Human body detection sensor 51 ... Foot switch 53 ... Recessed portion 55 ... Drainage port 57 ... Tablet 59 ... Injection device 61 ... Merging nozzle 71 ... Solution 100, 100A ... Urinal

Claims (5)

A pair of bowl side walls projecting forward from both sides of the bowl back wall are connected to a bowl ceiling wall and a bowl bottom wall projecting forward from the upper and lower sides of the bowl back wall to connect the bowl back wall inner surface, bowl side wall inner surface, bowl ceiling wall A urinal body that forms an inner space surrounded by the inner surface and the inner surface of the bowl bottom wall, and the inner space is an opening on the front surface;
A cleaning water discharge port which is opened at the upper part of the inner surface of the bowl back wall and connected with a cleaning water supply pipe,
An injection device having a merging nozzle connected to the washing water supply pipe and spraying and merging a solution obtained by dissolving soybean lecithin and plant-derived essential oil in ethanol from the merging nozzle into washing water;
A urinal comprising the urinal. A urinal according to claim 1,
On the inner surface of the bowl back wall, a recess is formed in the vicinity of a drain outlet provided on the inner surface of the bowl bottom wall,
A urinal characterized by containing a fragrance component in the recess and fitted with a tablet that is dissolved by washing water or running water by urination. A urinal according to claim 1 or 2,
The urinal body has a deodorizing coating,
The deodorizing coating film is
Particles A obtained by dispersing an inorganic antibacterial agent in a suspension obtained by adding a surfactant to a pH-sensitive polymer that dissolves in an acidic region to obtain a water-dispersed solution, and then spray-drying particles A;
A dispersion of an inorganic antibacterial agent surface-treated with an organic acid in a suspension of a pH-sensitive polymer that dissolves in a basic region to obtain an aqueous dispersion, and then spray-dried particles B.
An aqueous coating agent in which the particle A and the particle B are dispersed in an aqueous dispersion solution containing a cellulose derivative and a highly branched cyclic dextrin is solidified to form at least the bowl back wall inner surface and the bowl side wall inner surface of the urinal body. A urinal which is attached to the inner surface of the bowl ceiling wall and the inner surface of the bowl bottom wall. A urinal according to claim 3,
The highly branched cyclic dextrin is cyclodextrin or cluster dextrin,
The pH sensitive polymer that dissolves in the acidic region is aminoalkyl methacrylate copolymer E, polyvinyl acetal diethylaminoacetate,
A urinal wherein the pH-sensitive polymer dissolved in the basic region is a methacrylic acid copolymer LD or hydroxypropylmethylcellulose phthalate. A urinal according to any one of claims 1 to 4,
A door member that is provided in the urinal body, closes at least a part of the opening in the closed position to disable the urination operation, and opens the part in the open position to enable the urination operation;
A driving device for opening and closing the door member;
A pair of left and right provided on the floor surface in front of the urinal body, a foot switch for detecting a predetermined standing position when using the urinal of the urinal user,
A human body detection sensor that is provided on the ceiling wall of the bowl and detects a urinal user standing at the predetermined standing position when using the urinal;
Based on detection signals from the foot switch and the human body detection sensor, a control device that drives and controls the drive device to open and close the door member;
A urinal comprising the urinal.

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