JP6588617B1 - Bathroom ceiling and bathroom - Google Patents

Abstract

Provided is a bathroom ceiling capable of improving the sustainability of the mold prevention function even in the vicinity of an adjacent portion between an inspection port and an inspection port lid on which mold is likely to occur. A bathroom ceiling that forms a ceiling surface of a bathroom by adjoining a plurality of members, wherein the ceiling panel includes a first base made of a plate-like member and a mold preventive agent that elutes into water. A first exposed portion that is exposed to the interior of the bathroom, and a first facing portion that is continuous with the first exposed portion and extends upward to face the inspection palate. The inspection palate has a second base made of a plate-like member, and a second layer containing a fungicide that elutes into water, and is formed on the first base. The layer is formed with a second exposed portion exposed inside the bathroom and a second facing portion that is continuous from the second exposed portion and extends upward to face the first facing portion of the first layer. As described above, the bathroom ceiling is provided on the second base. [Selection] Figure 3

Description

  The present invention relates to a bathroom ceiling and a bathroom.

  In the bathroom, water adheres to the ceiling due to condensation even if it is not directly exposed to hot water in a shower or the like. For this reason, mold occurs and grows in a relatively short period after using the bathroom. In particular, mold generated on the ceiling discharges spores downward in the room, which promotes the growth of mold in the entire bathroom. On the other hand, the ceiling is difficult to clean, and it takes a lot of labor to clean it regularly every time it is used like a bathtub. Therefore, it is desirable that the ceiling itself has a function to suppress the generation of mold. . In this case, Patent Document 1 discloses that a mold (antibacterial decorative sheet) containing a fungicide is used in a bathroom to suppress the occurrence of mold.

Japanese Patent Laid-Open No. 10-166514

  By the way, in order to suppress the generation of mold on the bathroom ceiling surface, it is effective to suppress the generation of condensed water on the ceiling surface. Condensation on the ceiling surface occurs when vaporized hot water is cooled and aggregated by the ceiling surface due to a temperature difference between the interior of the bathroom and the back side of the ceiling surface. Therefore, in order to suppress the occurrence of this temperature difference, heat insulation may be performed by arranging a heat insulating material on the back side of the ceiling surface.

  However, since equipment such as a ventilation fan and a bathroom dryer is disposed on the back side of the bathroom ceiling surface, an inspection port is generally provided on the bathroom ceiling surface for inspection of equipment such as ducts and wiring. For this reason, a gap is generated between the inspection port and the inspection port lid that conceals the inspection port, and this part becomes a part that promotes the growth of mold more than other parts. This is because the inspection lid needs to be opened and closed at the time of equipment inspection, so that the airtightness of the ceiling surface is lower than other parts. For this reason, in order to improve the airtightness of the said part, providing the frame member which comprises the airtightness which has elasticity can be considered. However, because of the function of the inspection port, it is difficult to completely eliminate air permeability, and it has not yet been possible to prevent the occurrence of a local temperature difference at the site. For the same reason, it is difficult to completely eliminate the temperature difference with the heat insulating material.

  Here, as a method for suppressing the growth of mold on the exposed surface of the ceiling, it is known to include a fungicide on the exposed surface of the ceiling. In this case, in the case of a non-eluting type antifungal agent that does not elute into moisture among the antifungal agents, the effect is exhibited if the antifungal agent can come into contact with the mold. However, there are a lot of sebum and keratin stains that rise with shampoo and steam splashed by the bathing action on the exposed surface of the ceiling. If mold adheres to the surface of the soil, the mold does not come into contact with the fungicide. As a result, the non-eluting type antifungal agent may not be able to sufficiently exhibit the antifungal performance. On the other hand, with an elution type antifungal agent that elutes into moisture, the antifungal component is eluted in water droplets adhering to the exposed surface of the ceiling, so that it can act on the mold regardless of the presence of dirt.

  However, as described above, the inspection port for facility inspection provided on the ceiling of the bathroom and the inspection port lid that conceals the inspection port are less airtight. For this reason, in the exposed surface of the ceiling (surface inside the bathroom), the vicinity of the adjacent portion between the ceiling and the inspection port lid is likely to condense due to a temperature difference, and relatively large water droplets are likely to be formed on the surface of the ceiling. For this reason, the antifungal agent tends to elute in the vicinity of the adjacent part of the ceiling and the inspection mouth cover, and the antifungal function lasts long simply by providing a film containing the antifungal agent that elutes in moisture on the exposed surface of the ceiling. Hard to do.

  As a result, in the vicinity of the ceiling and the inspection palate on the exposed surface of the ceiling, the mold prevention function does not last long despite the fact that water tends to adhere and mold tends to occur. There is a problem that it cannot be suppressed.

  The present invention has been made based on recognition of such a problem, by effectively maintaining the mold prevention function in the vicinity of the adjacent portion of the inspection port and the inspection port lid on which mold on the ceiling surface of the bathroom is likely to grow, An object of the present invention is to provide a bathroom ceiling and bathroom that can improve the fungiproof function of the entire ceiling surface of the bathroom.

  1st invention is a bathroom ceiling which comprises a ceiling surface of a bathroom by a plurality of members adjoining each other, wherein the plurality of members are at least a first member, a second member adjacent to the first member, The first member is a ceiling plate having an inspection port, the second member is an inspection port lid that closes the inspection port, and the ceiling plate includes a first base made of a plate-like member, and moisture A first layer containing a fungicide that elutes into the first layer, and the first layer is continuous with the first exposed portion exposed inside the bathroom and the first exposed portion, and faces upward. The first base is provided so as to form a first facing portion that extends and opposes the inspection port lid, and the inspection port lid is provided with a second base made of a plate-like member and an anti-elution to water. A second layer containing a mold agent, and the second layer includes a second exposed portion exposed inside the bathroom, and the second layer. The second base is provided so as to form a second facing portion that is continuous from the exposed portion and extends upward and faces the first facing portion of the first layer. The bathroom ceiling is a feature.

  According to this bathroom ceiling, even if the release of the fungicide is promoted in the vicinity of the adjacent portion of the inspection port and the inspection port lid where condensation is likely to occur, the ceiling plate in the part where the release of the fungicide is promoted The first layer is filled with a fungicide from the first facing portion by concentration diffusion. Further, the second layer of the inspection palate in the portion where the dissolution of the fungicide is promoted is supplemented by the concentration diffusion from the second facing part. Thereby, the mold prevention function of the vicinity of the adjacent portion between the inspection port and the inspection port lid on which condensed water is likely to be generated can be maintained, and generation of mold on the entire ceiling surface can be suppressed over a long period of time.

  In a second aspect based on the first aspect, the first exposed portion and the first facing portion are continuous via a first curved portion that is curved in an arc shape, and the second exposed portion and the first 2 facing part is the bathroom ceiling characterized by continuing via the 2nd curved part which curves in an arc shape.

  According to this bathroom ceiling, since the 1st curved part is curving in the shape of an arc, it is located above rather than the case where the connection part of the 1st exposure part and the 1st countering part is bent at right angles. Thereby, the distance of the density | concentration diffusion of the fungicides performed from the 1st opposing part toward the 1st curved part can be shortened. Similarly, the concentration diffusion distance of the fungicide performed from the second facing portion toward the second bending portion can be shortened. As a result, since the mold preventive agent can be quickly supplemented to the first curved portion and the second curved portion, generation of mold can be suppressed over a long period of time.

  According to a third invention, in the first or second invention, the second layer extends from the upper end of the second facing portion together with the second base toward the ceiling plate, and overlaps the ceiling plate. It is a bathroom ceiling characterized by further having an existing part.

  According to the bathroom ceiling, the inspection port has a lower sealing property than other parts. In particular, for the convenience of opening and closing, a gap is provided in the fitting between the inspection port and the inspection port lid, so the attachment position of the lid may be biased, and the gap becomes significant. In this case, the steam in the bathroom reaches the upper part through the gap, and there is a possibility that the dew condensation water adheres to the first facing part that is the replenishment region of the fungicide. Therefore, by providing an extension portion on the inspection port lid, it is possible to expand the replenishment region of the fungicide that is difficult to form condensed water.

  In a fourth aspect based on the second aspect, between the ceiling plate and the extension portion, a seal member that enhances a sealing property that suppresses movement of moisture between the ceiling plate and the extension portion. A bathroom ceiling characterized by further comprising:

  According to this bathroom ceiling, by taking a watertight structure with the sealing member, it is possible to suppress the generation of condensed water at the contact portion between the sealing member and the extending portion, and to use the extending portion as a replenishing region for the antifungal agent. .

  A fifth invention is a bathroom ceiling according to any one of the first to fourth inventions, wherein the first layer is a sheet-like film.

  According to this bathroom ceiling, since the first layer is a film, for example, compared with a coating agent containing a fungicide applied to the first base, it is less likely to be scratched and can keep the fungicide function for a long time. it can.

  A sixth invention is the bathroom ceiling according to any one of the first to fifth inventions, wherein the second layer is a sheet-like film.

  According to this bathroom ceiling, since the second layer is a film, for example, compared to a coating agent containing a fungicide applied to the second base, it is less likely to be scratched and can keep the fungicide function for a long time. it can.

  7th invention is the bathroom characterized by including the bathroom ceiling described in any one of 1st-6th.

  Here, generation | occurrence | production and growth of mold | fungi in a bathroom ceiling are one of the generation | occurrence | production of mold | fungi in a bathroom. When mold is generated and grows on the ceiling of the bathroom, mold spores float in the bathroom, and the floating mold spores adhere to various places in the bathroom, leading to the generation of mold in the bathroom. However, according to this bathroom, by providing the bathroom ceiling described in any one of the first to sixth, the generation and growth of mold on the bathroom ceiling can be suppressed, and the bathroom ceiling has a mold prevention function. The sustainability of can be improved. Therefore, generation | occurrence | production of the mold | fungi of the space where a humid environment is maintained for a predetermined period can be suppressed over a long period of time.

  ADVANTAGE OF THE INVENTION According to the aspect of this invention, the bathroom ceiling and bathroom which can improve the sustainability of a mold prevention function also in the vicinity of the adjacent part of the inspection port and inspection port lid which a mold | die tends to generate | occur | produce are provided.

The model perspective view of the bathroom by the embodiment of the present invention. Sectional drawing which shows the adjacent part of the 1st member and 2nd member at the time of forming the 1st base | substrate and 2nd base | substrate by 1st board by 1st Embodiment. Sectional drawing which shows the adjacent part of the 1st member and 2nd member when the 1st base | substrate and 2nd base | substrate by 2nd Embodiment are bent at a right angle. Sectional drawing which shows the adjacent part of the 1st member and 2nd member when the 1st base | substrate and 2nd base | substrate by 3rd Embodiment are bent and formed in the curve shape. The perspective view which expands and shows the bathroom ceiling by 4th Embodiment. Sectional drawing which expands and shows the ceiling board and inspection opening lid in FIG. 5 from arrow EE direction. Sectional drawing which expands and shows the adjacent part of the ceiling board and inspection opening lid in FIG.

  Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In order to facilitate the understanding of the description, the same constituent elements in the drawings will be denoted by the same reference numerals as much as possible, and redundant description will be omitted.

FIG. 1 is a schematic perspective view as an example of a bathroom 1 in an embodiment according to the present invention.
The bathroom 1 is defined by four side walls 2, 3, 4, and 5. And the bathroom ceiling 21 is mounted in the upper end of the four side walls 2-5. The side wall 2 or the side wall 3 is provided with a door (not shown) for entering the bathroom 1 from a dressing room (not shown). In the bathroom 1, a bathtub 6, a washing floor 7, a counter 8, a mirror 9, a faucet device 10, a hand shower 11, and the like are provided as appropriate.

  In embodiment, the bathroom ceiling 21 arrange | positioned in the bathroom 1 provided with the bathtub 6 as shown in FIG. 1 is demonstrated. However, the bathroom is not limited to this, and includes a space where a humid environment is maintained for a predetermined period, such as a shower room or a sauna room that does not include the bathtub 6. That is, the bathroom ceiling 21 according to the present invention can be similarly applied to a space where a humid environment is maintained for a predetermined period, such as a shower room or a sauna room that does not include the bathtub 6.

(First embodiment)
Next, the bathroom ceiling 21 according to the first embodiment will be described.
2 to 4 conceptually show a first member and a second member adjacent to each other in the bathroom ceiling 21. A 1st member is a plate-shaped member which comprises at least one part of a ceiling surface, for example, can mention a ceiling board, an inspection port cover, a ventilation lid, etc. as an example. A 2nd member comprises at least one part of a ceiling surface, for example, can mention a ceiling board, an inspection port cover, a ventilation lid, etc. as an example. In the present invention, the “plate member” refers to a member that extends in a plane mainly like a plate in order to form a ceiling surface, and includes a member that is curved, partially bent, or provided with an uneven shape.

  First, as shown in FIG. 2, a case where the first base 23 of the first member 22 and the second base 29 of the second member 28 are formed of a single plate will be described.

  The bathroom ceiling 21 forms a ceiling surface of the bathroom 1 by a plurality of adjacent members. In this case, the bathroom ceiling 21 includes a first member 22 and a second member 28 adjacent to the first member 22.

  The first member 22 includes a first base 23 made of a plate-like member and a first layer 25 containing a fungicide that elutes into moisture. As the first base 23, for example, a resin molded body or a steel plate can be used. As the resin molded body, for example, thermoplastic resins such as vinyl chloride, SMC, PP, PE, and PET can be used. When the first substrate 23 is a steel plate, a metal plate material such as an aluminum plate, a stainless steel plate, a galvanized steel plate, or a zinc-aluminum-magnesium alloy plated steel plate can be used. The steel sheet may have a surface treated for preventing rust on the surface. Further, the thickness of the steel sheet is particularly preferably 0.25 mm to 0.4 mm from the viewpoints of workability, strength, and workability.

  On the back surface 23 a of the first base 23, a heat insulating layer 24 may be provided outside the bathroom 1. The heat insulating layer 24 is installed as necessary. For example, a gypsum board and a foamed resin can be used, and the heat insulating layer 24 can be formed of an air layer. The heat insulating layer 24 has a function of a reinforcing material that reinforces the first member 22 and a function as a heat insulating material that suppresses a temperature difference between the front surface 23 b and the back surface 23 a of the first base 23. Thereby, the heat insulation layer 24 can suppress that the hot water evaporated in the bathroom 1 is cooled and condensed on the surface 23b of the first base 23. Moreover, although not shown in figure, when the heat insulation layer 24 is used as the gypsum board, heat insulation performance can be improved more by installing a foam in the upper part of the gypsum board.

  The first layer 25 is provided on the surface 23 b of the first base 23 and the side surface 23 c of the first base 23 facing the second member 28. There may be an adhesive layer between the first base 23 and the first layer 25, and the first base 23 and the first layer 25 may be in direct contact with each other. Further, there may be another print layer between the first base 23 and the first layer 25. The first layer 25 may be formed of a sheet-like film containing an antifungal agent fixed to the surface 23b and the side surface 23c of the first base 23, or a coating agent containing the antifungal agent may be used as the first layer 25. It may be formed by coating on the surface 23b and the side surface 23c of one substrate 23.

  The first layer 25 can use one or more selected from a urea resin, a melamine resin, a phenol resin, an unsaturated polyester resin, an epoxy resin, and a silicon resin as a thermosetting resin. The first layer 25 is made of polypropylene resin (PP), polyethylene resin (PE), polyacetal resin (POM), polybutylene terephthalate resin (PBT), polyvinyl chloride resin (PVC), polystyrene resin (thermoplastic resin). PS), acrylonitrile-butadiene-styrene copolymer resin (ABS), polyphenylene sulfide resin (PPS), polyethylene terephthalate resin (PET), polymethyl methacrylate resin (PMMA), polyamide resin (PA), polyether ether ketone resin ( One or more kinds selected from PEEK), polytrimethylene terephthalate resin (PTT), polycarbonate resin (PC), and polytetrafluoroethylene-4-fluoroethylene resin (PTFE) can be used. The first layer 25 preferably uses a thermoplastic resin as the resin. More preferably, it is more preferable to use at least one resin selected from PP, PE, POM, PBT, PVC, ABS, PPS, PET, PMMA, PA, and PC. Even more preferable among these is at least one selected from PP, POM, and PE.

  The first layer 25 contains a fungicide that elutes into moisture. The thickness of the first layer 25 containing this fungicide is preferably 20 μm or more and 300 μm or less. By setting the thickness of the resin layer (first layer 25) within this range, the antifungal performance of the elution type antifungal agent contained in the resin layer can be ensured. Specifically, if the thickness of the resin layer is less than 20 μm, the first exposed portion 26 (exposed surface) to which water droplets with a small mold preventive agent attach will be deactivated early, and long-term sustainability cannot be ensured. On the other hand, when the thickness of the resin layer exceeds 300 μm, there is a possibility that problems may occur from the viewpoint of cost, manufacturing, and material combustibility.

  The antifungal agent contained in the first layer 25 is one that elutes into moisture, and in the first layer 25, the concentration diffuses from a high concentration to a low one in order to make the concentration gradient uniform. As this fungicide, for example, an organic antibacterial fungicide can be used. Examples of organic antibacterial and antifungal agents include alcohol antibacterial and antifungal agents, aldehyde antibacterial and antifungal agents, thiazoline and antibacterial and fungicides, imidazole and antibacterial and fungicides, ester and antibacterial and fungicides. Agent, peroxide antibacterial and antifungal agent, carboxylic acid antibacterial and antifungal agent, carbamate antibacterial and antifungal agent, sulfamide antibacterial and antifungal agent, quaternary ammonium salt antibacterial and antifungal agent, biguanide It is possible to use one or more selected from pyridine-based antibacterial / antifungal agents, phenol-based antibacterial / antifungal agents, iodine-based antibacterial / antifungal agents, and triazole-based antibacterial / antifungal agents. Specifically, the following can be used.

  Alcohol-based antibacterial and antifungal agents include ethanol, isopropanol, propanol, trisnitro (trishydroxymethylnitromethane), chlorobutanol (1,1,1-trichloro-2-methyl-2-propanol), bronopol (2-bromo-2) One or more selected from (nitropropane-1,3-diol) can be used.

  As the aldehyde antibacterial and antifungal agent, one or more selected from glutaraldehyde, formaldehyde, and BCA (α-bromocinnamaldehyde) can be used.

  Thiazoline antibacterial and antifungal agents include OIT (2-n-octyl-4-isothiazolin-3-one), MIT (2-methyl-4-isothiazolin-3-one), CMI (5-chloro-2-methyl) -4-isothiazolin-3-one), BIT (1,2-benzisothiazolone), n-butyl BIT (Nn-butyl-1,2-benzisothiazolin-3-one) is used. be able to.

OIT is represented by the structural formula (1).

MIT is represented by structural formula (2).

CMI is represented by structural formula (3).

BIT is represented by the structural formula (4).

  As the imidazole antibacterial and antifungal agent, one or more selected from TBZ (2- (4-thiazolyl) -benzimidazole) and BCM (methyl-2-benzimidazole carbamate) can be used.

  As the ester antibacterial and antifungal agent, lauricidine (glycerol laurate) and the like can be used.

  Chlorine antibacterial and antifungal agents include triclocarban (3,4,4′-trichlorocarbanilide), halocarban (4,4-dichloro-3- (3-fluoromethyl) -carbanilide), 2,4,4 One or more selected from 5,6-tetrachloroisophthalonitrile, sodium hypochlorite, dichloroisocyanuric acid, and trichloroisocyanuric acid can be used.

  As the peroxide antibacterial and antifungal agent, one or more selected from hydrogen peroxide, chlorine dioxide, and peracetic acid can be used.

  Carboxylic acid antibacterial fungicides include benzoic acid, sorbic acid, caprylic acid, propionic acid, 10-undecylenic acid, potassium sorbate, potassium propionate, calcium propionate, sodium benzoate, sodium propionate, magnesium dihydrogen One or more selected from bismonoperoxyphthalate and zinc undecylenate can be used.

  As the carbamate antibacterial and antifungal agent, sodium N-methyldithiocarbamate can be used.

  As the sulfamide antibacterial and antifungal agent, one or more selected from dichlorofluanide and trifluanid can be used.

  The quaternary ammonium salt antibacterial and antifungal agents include 4,4 ′-(tetramethylenedicarbonyldiamino) bis (1-decylpyridiniumboromide), benzalkonium chloride, benzotonium chloride, acetylammonium bromide, N, One or more selected from N′-hexamethylenebis (4-carbonyl-1-decylpyridinium bromide) and cetylpyridinium chloride can be used.

  As the biguanide antibacterial and antifungal agent, one or more selected from chlorhexidine gluconate, chlorhexidine hydrochloride, polypiguanide hydrochloride, and polyhexamethylenepiguanide can be used.

  Examples of pyridine-based antibacterial and antifungal agents include sodium pyrithione, zinc pyrithione (ZPT: bis (2-pyridithio-1-oxide) zinc), densyl (2,3,5,6, -tetrachloro-4- (methylsulfonyl) pyridine. 1) or more selected from copper pyrithione (bis (2-pyridithio-1-oxide) copper).

ZPT is represented by the structural formula (5).

  Phenol antibacterial and antifungal agents include thymol (2-isopropyl-5-methylphenol), biosol (3-methyl-4-isopropylphenol), OPP (orthophenylphenol), phenol, butylparaben (butyl-p-hydroxy) Benzoate), ethylparaben (ethyl-p-hydroxybenzoate), methylparaben (methyl-p-hydroxybenzoate), propylparaben (propyl-p-hydroxybenzoate), metacresol, orthocresol, paracresol, sodium orthophenylphenol, chloro One or more selected from phen (2-benzyl-4-chlorophenol) and chlorocresol (2-methyl-3-chlorophenol) can be used.

  Examples of iodine-based antibacterial and antifungal agents include Amical 48 iodine (diiodomethyl-p-tolyl-sulfone), polyvinylpyrrolidone iodine, p-chlorophenyl-3-iodopropargyl formal, 3-bromo-2,3-diiodo-propenyl ethyl carbonate One or more selected from 3-iodo-2-propynyl butyl carbonate can be used.

  Examples of triazole antibacterial and antifungal agents include tebuconazole ((±) -α- [2- (4-chlorophenyl) ethyl] -α- (1,1-dimethylethyl) -1H-1,2,4-triazole-1 -Ethanol) and the like can be used.

  In addition, the 1st layer 25 may contain the antibacterial agent with the antifungal agent. As the antibacterial agent, an inorganic antibacterial agent may be included. The inorganic antibacterial agent is MIC (Minimum Growth Inhibitory Concentration) against at least bacteria described in the Antibacterial and Antifungal Dictionary-Prototype-(Journal of the Japanese Society for Antibacterial and Fungicide, 1998, Vol. 26). ) Means an inorganic drug.

  As such an inorganic antibacterial agent, it is possible to use one or more selected from a silver antibacterial agent, a zinc antibacterial agent, and a copper antibacterial agent. Thereby, the antimicrobial effect with respect to a wide variety of bacteria can be provided to a ceiling member or a wall member, and it becomes possible to suppress the production | generation of the biofilm produced by the proliferation of bacteria. Therefore, the growth of mold that adheres to the ceiling member or wall member using the biofilm as a scaffold can also be suppressed. For example, silver antibacterial agents can destroy cell membranes by binding silver ions to -SH groups and disulfide bonds in bacterial cell membrane proteins and denaturing the membrane proteins.

  As the inorganic antibacterial agent, one in which at least one selected from silver ions, zinc ions and copper ions is supported on an inorganic compound can be used. As the inorganic compound, it is possible to use one or more selected from zeolite, glass, talc, silica gel, silicate, mica, and sepiolite. When using a plurality of ionic species, each ion may be supported on the same inorganic compound. Specifically, an inorganic antibacterial agent in which silver ions and zinc ions are supported on glass can be used. Moreover, when using several ion species, each ion may be carry | supported by the different inorganic compound. Specifically, it is possible to use an inorganic antibacterial agent in which silver ions are supported on glass and an inorganic antibacterial agent in which zinc ions are supported on zeolite.

  As the silver-based antibacterial agent, a composite of silver and an inorganic oxide other than silver can be used. Specifically, silver-zirconium phosphate (AgxHyNazZr2 (PO) 4) 3) (x + y + z = 1), silver chloride-titanium oxide (AgCl / TiO2), silver-zinc calcium phosphate (Ag-CaxZnyAlz (PO) 4) ) 6 (x + y + z = 10), silver zinc aluminum silicate (mixture) M2 / n.Na2O.2SiO2.xH2O (M: Ag, Zn, NH4)) can be used.

  In the present invention, zinc oxide / silver / zirconium phosphate (ZnO, AgxHyNazZr2 (PO) 4) 3) or the like can be used as a zinc-based antibacterial agent.

  In the present invention, N-stearolyl-L-glutamic acid AgCu salt or the like can be used as the copper antibacterial agent.

  It is preferable to use a silver antibacterial agent as the inorganic antibacterial agent. More preferably, a composite of silver and an inorganic oxide other than silver is used. Thereby, since it is possible to suppress excessive elution of silver on the surface of the resin molded body, it becomes possible to suppress the growth of bacteria over a long period of time.

  Such a first layer 25 may be formed on the outermost surface of the bathroom ceiling 21 so as to be exposed to the bathroom space. If water droplets adhere to the first layer 25 due to the scattering of hot water or the formation of condensed water due to the condensation of steam, components of the fungicide (antibacterial agent) are eluted in the water droplets. When the fungicide component eluted in the water droplets acts on the mold, generation and growth of mold on the ceiling surface of the bathroom 1 can be suppressed.

  In particular, it is preferable to provide a fine uneven shape on the surface of the first layer 25 by embossing or the like, since the surface area is increased and the dissolution of the antifungal agent is promoted. Here, the concavo-convex shape may have a surface roughness Ra in the range of 1 μm to 7 μm, more preferably in the range of 4 μm to 6 μm.

  The first layer 25 includes a first exposed portion 26 that extends in the horizontal direction and a first facing portion 27 that is continuous with the first exposed portion 26 and extends upward. The first exposed portion 26 is exposed to the interior of the bathroom 1 by being fixed to the surface 23 b of the first base 23. On the other hand, the first facing portion 27 is opposed (contacted) with the second facing portion 33 of the second member 28 by being fixed to the side surface 23 c of the first base 23. The first facing portion 27 includes not only the case where the first facing portion 27 extends in the vertical direction from the first exposed portion 26, but also one that extends obliquely upward from the first exposed portion 26.

  In order to fix the first layer 25 to the first base 23, an adhesive layer (not shown) can be provided between the first layer 25 and the first base 23. The adhesive layer can be formed using a known material.

  The second member 28 is configured in the same manner as the first member 22, and has a second base 29 and a second layer 31. The second base 29 can use the same material as the first base 23. A heat insulating layer 30 may be provided on the back surface 29 a of the second base 29. That is, the heat insulation layer 30 is provided as needed. On the other hand, the second layer 31 contains a fungicide that elutes into moisture, the second exposed portion 32 is fixed to the surface 29 b of the second base 29, and the second facing portion 33 is a side surface of the second base 29. It is fixed to 29c. The second layer 31 may contain an antibacterial agent together with the antifungal agent, and the same material as the first layer 25 can be used. The second layer 31 may be formed of a sheet-like film containing a fungicide fixed to the surface 29b and the side surface 29c of the second base 29, or a coating agent containing a fungicide. May be applied to the surface 29b and the side surface 29c of the second substrate 29.

  The bathroom ceiling 21 according to the first embodiment has the above-described configuration. Next, the mold prevention function of the bathroom ceiling 21 will be described. Since the first member 22 and the second member 28 have the same configuration, the first member 22 will be described, and the description of the second member 28 will be omitted.

  As shown in FIG. 2, when the heat insulating layer 24 is provided, the temperature difference between the surface 23 b of the first base 23 located below the heat insulating layer 24 and the inside of the bathroom 1 is suppressed. Thereby, it is reduced that dew condensation water adheres to the 1st exposed part 26 under the heat insulation layer 24. FIG. Moreover, even if dew condensation water adheres, it is a small water droplet W1, and as shown by arrow A1, generation of mold and growth are suppressed by the release of the fungicide in the small water droplet W1. Accordingly, the amount of the antifungal agent eluted from the first exposed portion 26 located below the heat insulating layer 24 is reduced. The heat insulating layer 24 is not necessarily provided on the back surface 23a of the first base 23, and is provided as necessary.

  On the other hand, the connecting portion between the first member 22 and the second member 28 is difficult to dispose the heat-insulating layers 24 and 30 or has low airtightness, so that it is a portion where condensation is likely to occur. Yes. Therefore, a water droplet W2 larger than the water droplet W1 adhering to the first exposed portion 26 can be easily formed at the connection portion between the first exposed portion 26 and the first facing portion 27 of the first member 22, and is shown by an arrow B1. In this way, the amount of fungicides eluted increases.

  In the present embodiment, the first facing portion 27 of the first layer 25 continuously extends upward from the first exposed portion 26. On the other hand, the second facing portion 33 of the second layer 31 extends continuously upward from the second exposed portion 32. And since the 1st opposing part 27 and the 2nd opposing part 33 are contact | abutting, it is a part into which moisture does not enter easily, and even if there is a temperature difference, dew condensation water is not produced | generated. In other words, in the present embodiment, the first facing portion 27 containing the antifungal agent is also provided on the side surface 23c of the first base 23 which is a portion where water droplets are difficult to adhere and mold is not easily generated.

  Thereby, the antifungal agent passes through the first layer 25 from the first facing portion 27 to the connecting portion between the first exposed portion 26 and the first facing portion 27 of the first member 22 as shown by an arrow C1. It is compensated by concentration diffusion. Moreover, when the heat insulation layer 24 is provided in the back surface 23a of the 1st base | substrate 23, it shows to the connection part of the 1st exposed part 26 and the 1st opposing part 27 of the 1st member 22 by arrow D1. As described above, the antifungal agent is compensated by concentration diffusion in the first layer 25 from the first exposed portion 26 located below the heat insulating layer 24. Even if the heat insulating layer 24 is not provided, if the airtightness between the members is low, the connecting portion between the first exposed portion 26 and the first facing portion 27 of the first member 22 is connected to the connecting portion. The antifungal agent is compensated by concentration diffusion in the first layer 25 from the first exposed portion 26 which is separated. Therefore, in the present embodiment, even if the dissolution of the fungicide is promoted in the water droplets at the connection portion between the first member 22 and the second member 28, the first part of the part is promoted to dissolve the fungicide. The antifungal agent contained in the first opposing portion 27 of the layer 25 is compensated by concentration diffusion. Thereby, the mold prevention function between the 1st member 22 and the 2nd member 28 can be maintained, and generation | occurrence | production of the mold | fungi on the whole ceiling surface can be suppressed over a long period of time.

  Here, when the fungicide diffuses in concentration, by using a metal plate material as the first base 23 and the second base 29, elution of the fungicide to the back surface (ceiling back side) can be blocked, Unnecessary loss of fungicides can be prevented. Moreover, the vapor | steam in the bathroom 1 may permeate | transmit though a trace amount depending on the thickness, material, use environment, etc. of the 1st layer 25 and the 2nd layer 31. However, by using a metal plate material as the first base 23 and the second base 29, the moisture permeation to the back surface of the ceiling plate is blocked, and the function of the antifungal agent allows the first layer 25 and the second layer 31 to function. Can suppress the growth of mold. In this case, if the surface of the first base 23 and the second base 29 is subjected to surface processing such as plating, the first base 23 and the second base 29 corrode due to the invasion of vapor. 23 and the first layer 25, and the deterioration of the fixing interface between the second base 29 and the second layer 31 can be suppressed.

  The first base 23 and the first layer 25, and the second base 29 and the second layer 31 may be fixed by an adhesive layer (not shown). Since the adhesive layer has a lower mold diffusion density than the first layer 25 and the second layer 31, the adhesion between the first base 23 and the first layer 25 and the second base 29 and the second layer 31 is improved. It is possible to suppress the dissolution of the fungicide on the back surface side and effectively promote the diffusion to the exposed surface.

  Thus, in the first embodiment, even if the elution of the fungicide is promoted in the water droplets between the first member 22 and the second member 28, the first antifouling agent elution is promoted to the first part. The antifungal agent contained in the first facing portion 27 of the layer 25 is supplemented by concentration diffusion. As a result, the mold difference can be effectively eluted between the first member 22 and the second member 28 where the mold growth becomes remarkable due to the large temperature difference, and the mold prevention function is maintained. Can do. For this reason, generation | occurrence | production of the mold of the whole ceiling surface can be suppressed over a long period of time.

(Second Embodiment)
Next, a second embodiment of the present invention will be described with reference to FIG. FIG. 3 is a cross-sectional view showing a case where the first base and the second base are bent at right angles at adjacent portions of the first member and the second member.

  The first member 41 includes a first base 42 made of a plate-like member bent in an L shape at a portion adjacent to the second member 48, and a first layer 45 containing a fungicide that elutes into moisture. ing. For example, a resin molded body or a metal material (steel plate) can be used for the first base 42 in the same manner as the first base 23 of the first embodiment. The first base 42 includes a horizontal plate portion 43 extending in the horizontal direction and a rising plate portion 44 extending upward from the horizontal plate portion 43. The rising plate portion 44 rises, for example, at a right angle from the left end of the horizontal plate portion 43 upward, and faces the rising plate portion 51 of the second member 48. Further, a heat insulating layer 24 may be provided on the back surface 43a of the horizontal plate portion 43 as necessary.

  The first layer 45 is fixed to the surface of the first base 42 and contains an antibacterial agent that elutes into water (antibacterial). There may be an adhesive layer between the first base 42 and the first layer 45 as in the first embodiment. The first layer 45 can be made of the same material as the first layer 25 of the first embodiment. The first layer 45 includes a first exposed portion 46 and a first facing portion 47 that rises continuously from the first exposed portion 46. The first exposed portion 46 is fixed to the surface 43 b of the horizontal plate portion 43 constituting the first base 42 and is exposed inside the bathroom 1. On the other hand, the first facing portion 47 is fixed to the surface 44 a of the rising plate portion 44 of the first base 42. The first facing portion 47 continuously rises from the first exposed portion 46 at a right angle and faces (abuts) the second facing portion 54 of the second member 48. In addition to the case where the 1st opposing part 47 is extended from the 1st exposed part 46 to a perpendicular direction, the thing which inclines and extends upwards from the 1st exposed part 46 is also included.

  The second member 48 is configured in the same manner as the first member 41, and has a second base 49 and a second layer 52. A heat insulating layer 30 may be provided on the back surface of the second base 49 as necessary. On the other hand, the second layer 52 contains a fungicide (antibacterial) that elutes in moisture, and is configured in the same manner as the first layer 45. In the second layer 52, the second exposed portion 53 is fixed to the surface 50 b of the horizontal plate portion 50 constituting the second base 49, and the second facing portion 54 is the surface 51 a of the rising plate portion 51 constituting the second base 49. It is fixed to.

  Thus, also in the second embodiment configured as described above, it is difficult to dispose the heat insulating layers 24 and 30 in the connecting portion between the first member 41 and the second member 48 as in the first embodiment. Or airtightness is low, so it is easy to condense. Therefore, a large water droplet W <b> 2 is easily formed at the connection portion between the first exposed portion 46 and the first facing portion 47 of the first member 41. As a result, the antifungal agent has a greater amount of elution into the water droplet W2 indicated by arrow B2 than the amount of elution into the water droplet W1 indicated by arrow A2.

  In the present embodiment, the first facing portion 47 of the first layer 45 continuously extends upward from the first exposed portion 46. On the other hand, the second facing portion 54 of the second layer 52 extends continuously upward from the second exposed portion 53. And since the 1st opposing part 47 and the 2nd opposing part 54 are contact | abutting, it is a part into which moisture does not enter easily, and even if there is a temperature difference, dew condensation water is not produced | generated. In other words, in the present embodiment, the first facing portion 47 containing the antifungal agent is also provided on the rising plate portion 44 of the first base 42 which is a portion to which water droplets are difficult to adhere and mold does not easily occur.

  Thereby, the antifungal agent passes through the first layer 45 from the first facing portion 47 to the connecting portion between the first exposed portion 46 and the first facing portion 47 of the first member 41 as shown by an arrow C2. It is compensated by concentration diffusion. Moreover, when the heat insulation layer 24 is provided in the back surface 43a of the 1st base | substrate 42, it shows to the connection part of the 1st exposed part 46 and the 1st opposing part 47 of the 1st member 41 by arrow D2. As described above, the antifungal agent is compensated by concentration diffusion in the first layer 45 from the first exposed portion 46 located below the heat insulating layer 24. Even if the heat insulating layer 24 is not provided, if the airtightness between the members is low, the connecting portion between the first exposed portion 46 and the first facing portion 47 of the first member 41 is connected to the connecting portion. An antifungal agent is compensated by concentration diffusion in the first layer 45 from the separated first exposed portion 46. Therefore, in the present embodiment, even if the dissolution of the fungicide is promoted in the water droplets at the connection portion between the first member 41 and the second member 48, the first part is the portion where the dissolution of the fungicide is promoted. The antifungal agent contained in the first facing portion 47 of the layer 45 is compensated by concentration diffusion. Thereby, the mold prevention function between the 1st member 41 and the 2nd member 48 can be maintained, and generation | occurrence | production of the mold | fungi on the whole ceiling surface can be suppressed over a long period of time.

(Third embodiment)
Next, a third embodiment of the present invention will be described with reference to FIG. FIG. 4 is a cross-sectional view showing a case where the first base and the second base are bent and formed at adjacent portions of the first member and the second member.

  The first member 61 includes a first base 62 made of a plate-like member bent in a curved shape at a portion adjacent to the second member 72, and a first layer 67 containing a fungicide that elutes into moisture. Yes. For example, a resin molded body or a metal material (steel plate) can be used for the first base body 62 in the same manner as the first base body 23 of the first embodiment. The first base 62 includes a horizontal plate portion 63 that extends in the horizontal direction, a rising plate portion 64 that extends upward, and a curved portion 66 that curves and extends in an arc between the horizontal plate portion 63 and the rising plate portion 64. It is comprised including. The horizontal plate portion 63 and the rising plate portion 64 are continuous via the bending portion 66. The curved portion 66 is curved in a convex shape so as to provide a roundness between the horizontal plate portion 63 and the rising plate portion 64. A heat insulating layer 24 may be provided on the back surface 63a of the horizontal plate portion 63 as necessary.

  The first layer 67 is affixed to the surface of the first base 62 and contains an antibacterial fungicide that elutes into moisture. There may be an adhesive layer between the first base 62 and the first layer 67 as in the first embodiment. The first layer 67 can use the same material as the first layer 25 of the first embodiment.

  The first layer 67 includes a first exposed portion 68, a first facing portion 69 extending upward, and a first curved portion that curves in an arc between the first exposed portion 68 and the first facing portion 69. 71. That is, in the first layer 67, the first exposed portion 68 and the first facing portion 69 are continuous via the first curved portion 71 that is curved in an arc shape. The first exposed portion 68 is fixed to the surface 63 b of the horizontal plate portion 63 constituting the first base 62 and is exposed inside the bathroom 1. The first facing portion 69 is fixed to the surface 64 a of the rising plate portion 64 that constitutes the first base 62, and faces (abuts) the second facing portion 80 of the second layer 78.

  The first bending portion 71 is fixed to the surface 66 a of the bending portion 66 of the first base 62, one end side is connected to the first exposed portion 68, and the other end side is connected to the first facing portion 69. That is, the first bending portion 71 extends in a convex shape so as to be rounded between the first exposed portion 68 and the first facing portion 69 along the bending portion 66.

  The second member 72 is configured in the same manner as the first member 61, and has a second base 73 and a second layer 78. The second base 73 has a horizontal plate portion 74, a rising plate portion 75, and a curved portion 77. The heat insulating layer 30 may be provided on the back surface 74a of the horizontal flat plate portion 74 as necessary. On the other hand, the second layer 78 contains a fungicide (antibacterial) that elutes in moisture, and is configured in the same manner as the first layer 67. In the second layer 78, the second exposed portion 79 is fixed to the surface 74 b of the horizontal plate portion 74 constituting the second base 73. The second facing portion 80 is fixed to the surface 75 a of the rising plate portion 75 constituting the second base 73. The second bending portion 82 is fixed to the surface 77 a of the bending portion 77 constituting the second base 73.

  Thus, in the third embodiment configured as described above, similarly to the first embodiment, it is difficult to dispose the heat insulating layers 24 and 30 in the connecting portion between the first member 61 and the second member 72. Or airtightness is low, so it is easy to condense. Therefore, the first curved portion 71 of the first member 61 can easily form a larger water droplet W2 than the water droplet W1 attached to the first exposed portion 68. As a result, the antifungal agent has a greater amount of elution into the water droplet W2 indicated by arrow B3 than the amount of elution into the water droplet W1 indicated by arrow A3.

  In the present embodiment, the first facing portion 69 of the first layer 67 and the second facing portion 80 of the second layer 78 are in contact with each other, so moisture is difficult to enter, and even if there is a temperature difference, condensed water Is a part that is not generated. That is, in the present embodiment, the first facing portion 69 containing the antifungal agent is also provided on the rising plate portion 64 of the first base 62 which is a portion where water droplets are difficult to adhere and mold does not easily occur.

  As a result, the first bending portion 71 of the first member 61 is compensated for by the concentration of the fungicide from the first facing portion 69 through the first layer 67 as indicated by arrows C3 and C4. . Further, when the heat insulating layer 24 is provided on the back surface 63a of the first base 62, the first curved portion 71 of the first member 61 is provided under the heat insulating layer 24 as indicated by arrows D3 and D4. The antifungal agent is compensated by concentration diffusion in the first layer 67 from the first exposed portion 68 located on the side. Even when the heat insulating layer 24 is not provided, when the airtightness between the members is low, the first antibacterial agent is applied to the first curved portion 71 of the first member 61 from the first exposed portion 68 in the first layer. It is compensated by concentration diffusion in 67. Therefore, in the present embodiment, even if the dissolution of the fungicide is promoted in the water droplets at the connection portion between the first member 61 and the second member 72, the first part is the portion where the dissolution of the fungicide is promoted. The fungicide contained in the first facing portion 69 of the layer 67 is compensated by concentration diffusion. Thereby, the mold prevention function between the 1st member 61 and the 2nd member 72 can be maintained, and generation | occurrence | production of the mold | fungi on the whole ceiling surface can be suppressed over a long period of time.

  In this case, since the first curved portion 71 is curved in a convex shape so as to be rounded from the first exposed portion 68 toward the first opposed portion 69, the first exposed portion 68 and the first opposed portion 69 Is located above the case where the connecting portion is bent at a right angle. Thereby, the distance of the density | concentration diffusion of the fungicides performed from the 1st opposing part 69 toward the 1st bending part 71 can be shortened. Moreover, the distance of the concentration diffusion of the fungicide performed from the first exposed portion 68 toward the first curved portion 71 can be shortened. Accordingly, since the fungicide can be compensated for at an early stage in the part where the fungicide is eluted, the generation of mold can be suppressed over a long period of time.

  That is, as shown in FIG. 4, the distance C3 + C4 from the point O1 of the first facing portion 69 to the point O2 of the first bending portion 71 is the same as the first exposed portion 68 indicated by the dotted line in FIG. It becomes shorter than the distance C3 + C5 to the point O3 of the connecting portion when the facing portion 69 is at a right angle (C3 + C4 <C3 + C5). Further, the distance D3 + D4 from the point O4 to the point O2 of the first exposed portion 68 located below the heat insulating layer 24 is shorter than the distance D5 from the point O4 to the point O3 (D3 + D4 <D5). Therefore, when the 1st curved part 71 is formed in the 1st layer 67, an antifungal agent can be supplemented at an early stage.

(Fourth embodiment)
Next, a fourth embodiment of the present invention will be described with reference to FIGS. The characteristic of 4th Embodiment is the inspection opening lid | cover with which the 1st member was the ceiling board of the bathroom 1 and the 2nd member was provided in the ceiling board. In addition, in 4th Embodiment, since it has the structure similar to the 1st member 61 and the 2nd member 72 of the above-mentioned 3rd Embodiment, the same code | symbol is attached | subjected to the same component as 3rd Embodiment, The description will be omitted.

FIG. 5 is an enlarged perspective view showing the bathroom ceiling 21.
FIG. 6 is a cross-sectional view of the ceiling plate and the inspection mouth cover as seen from the direction of arrows EE in FIG.
FIG. 7 is an enlarged cross-sectional view showing an adjacent portion between the ceiling plate and the inspection opening lid in FIG.

  The bathroom ceiling 21 includes a ceiling plate 91 made of a plate-like body extending in the horizontal direction, and an inspection port lid 92 that covers an inspection port 91 a formed in the ceiling plate 91. Further, the ceiling plate 91 is formed with openings 94 in which a ventilation port 93, a heating / drying device, a lighting device, a sound device, an overhead shower (not shown) and the like are respectively disposed. That is, the ceiling surface of the bathroom ceiling 21 is configured by a plurality of members such as a ceiling plate 91, an inspection opening lid 92, a heating / drying device, a lighting device, an acoustic device, and an overhead shower being adjacent to each other.

  The ceiling board 91 constitutes the first member of the present invention. The ceiling plate 91 has an inspection port 91a that communicates the inside and the outside of the bathroom 1 and covers the upper ends of the side walls 2 to 5. The ceiling plate 91 includes a first base 62 and a first layer 67.

  The first base 62 connects the upper ends of the side walls 2 to 5. The first base 62 includes a horizontal plate portion 63 that extends in the horizontal direction, a rising plate portion 64 that extends upward, and a curved portion 66 that curves and extends in an arc between the horizontal plate portion 63 and the rising plate portion 64. It is comprised including. The rising plate portion 64 is formed in a rectangular shape in a top view (plan view), and an opening surrounded by the rising plate portion 64 is an inspection port 91a. The inspection port 91a is closed by an inspection port lid 92 so as to be opened and closed.

  The curved portion 66 is curved in a convex shape so as to provide a roundness between the horizontal plate portion 63 and the rising plate portion 64. A heat insulating layer 24 may be provided on the back surface 63a of the horizontal plate portion 63 as necessary. The heat insulating layer 24 can suppress dew condensation caused by the hot water vaporized in the bathroom 1 being cooled by the horizontal plate portion 63 of the first base 62.

  The first layer 67 is fixed to the surface of the first base 62 (the inner surface of the bathroom 1). The first layer 67 contains an antibacterial fungicide that elutes into moisture, and includes a first exposed portion 68, a first facing portion 69 extending upward, a first exposed portion 68, and a first exposed portion 68. A first bending portion 71 that is curved in an arc shape with the facing portion 69 is included. The first exposed portion 68 is fixed to the surface 63 b of the horizontal plate portion 63 constituting the first base 62 and is exposed inside the bathroom 1. The first facing portion 69 is fixed to the surface 64 a of the rising plate portion 64 that constitutes the first base 62, and faces (abuts) the second facing portion 80 of the second layer 78.

  The first bending portion 71 is fixed to the surface 66 a of the bending portion 66 constituting the first base body 62. That is, the first bending portion 71 is curved in a convex shape so as to provide a roundness between the first exposed portion 68 and the first facing portion 69. In other words, the first bending portion 71 is formed in an arc shape (bow shape, R shape) between the first exposed portion 68 and the first facing portion 69.

  The inspection port lid 92 closes the inspection port 91a formed in the ceiling plate 91 so as to be openable and closable, and constitutes the second member of the present invention. The inspection port lid 92 is formed in a dish shape by bending the second base 73, and covers the inspection port 91 a from the back side of the ceiling plate 91 (outside the bathroom 1). The inspection port lid 92 includes a second base 73 and a second layer 78.

  The second base 73 is a base member of the inspection port lid 92. The second base 73 has a horizontal plate portion 74 that extends in the horizontal direction, a rising plate portion 75 that faces the rising plate portion 64 of the ceiling plate 91 in the lateral direction (horizontal direction) and extends upward from the horizontal plate portion 74. have. Further, the second base 73 has a contact plate portion 95 that extends from the upper end of the rising plate portion 75 toward the ceiling plate 91, and a later-described packing 97 contacts with the extended portion 96 of the second layer 78. is doing.

  The horizontal plate portion 74 is formed on substantially the same plane as the horizontal plate portion 63 of the ceiling plate 91 and constitutes a part of the ceiling surface of the bathroom 1. The rising plate portion 75 is connected to the horizontal plate portion 63 via a curved portion 77 that curves and extends in an arc shape from an end portion of the horizontal plate portion 74. The standing rising plate portion 75 extends above the rising plate portion 64 and the heat insulating layer 24 of the ceiling plate 91. The contact plate portion 95 extends from the upper end of the rising plate portion 75 toward the ceiling plate 91, and the tip end side is bent downward.

  The heat insulating layer 30 may be provided on the back surface 74a of the horizontal flat plate portion 74 (outside the bathroom 1) as necessary. The heat insulating layer 30 has a function of a reinforcing material that reinforces the inspection port lid 92 and a function as a heat insulating material that suppresses a temperature difference between the back surface 74 a and the front surface 74 b of the horizontal plate portion 74. Thereby, the heat insulation layer 30 can suppress that the hot water evaporated in the bathroom 1 is cooled and condensed by the horizontal plate portion 74 of the second base 73.

  The second layer 78 is fixed to the surface of the second base 73 (the inner surface of the bathroom 1). The second layer 78 contains an antibacterial and antifungal agent that elutes into moisture. The second layer 78 extends continuously upward from the second exposed part 79 via the second curved part 82. And an opposing portion 80. Further, the second layer 78 includes an extending portion 96 that continuously extends from the upper end of the second facing portion 80 toward the ceiling plate 91. The second exposed portion 79 is provided on the surface 74 b of the horizontal plate portion 74 constituting the second base 73 and is exposed inside the bathroom 1.

  The second facing portion 80 is fixed to the surface of the rising plate portion 75 of the second base 73. The second facing portion 80 rises continuously from the second exposed portion 79 via the second bending portion 82, faces (facing) the first facing portion 69 of the ceiling plate 91, and is more than the first facing portion 69. It extends upward.

  The second bending portion 82 is fixed to the surface 77 a of the bending portion 77 constituting the second base 73. That is, the second bending portion 82 is curved in a convex shape so as to provide a roundness between the second exposed portion 79 and the second facing portion 80. In other words, the second bending portion 82 is formed in an arc shape (bow shape, R shape) between the second exposed portion 79 and the second facing portion 80.

  The extending portion 96 is provided on the surface of the contact plate portion 95. That is, the extending portion 96 extends from the upper end of the second facing portion 80 together with the second base 73 toward the ceiling plate 91 and overlaps the ceiling plate 91. And between the heat insulation layer 24 of the ceiling board 91 and the extension part 96, the packing 97 as a sealing member which improves the sealing performance which suppresses a movement of a water | moisture content between the ceiling board 91 and the extension part 96 is provided. It has been. That is, a space between the ceiling plate 91 and the extending portion 96 is a watertight structure.

  The packing 97 is made of, for example, a synthetic resin material such as urethane, rubber, or silicone, and is positioned above the heat insulating layer 24 and is in contact with the extending portion 96. The packing 97 allows the passage of air and prevents the passage of moisture. And since the extension part 96 is covered with the packing 97, it is a part from which dew condensation water is not produced | generated. Therefore, the extension part 96 can be used as a replenishment region for replenishing the second facing part 80 with the fungicide.

  Thus, the bathroom ceiling 21 according to the fourth embodiment can have the same operations and effects as those of the first to third embodiments. That is, as shown in FIG. 6, when the heat insulation layer 24 is provided on the back surface 63a of the horizontal plate portion 63 of the first base 62 of the ceiling plate 91, the temperature difference between the inside of the bathroom 1 and the back side of the ceiling surface. Is suppressed. As a result, the adhesion of condensed water to the first exposed portion 68 of the first layer 67 is reduced. Moreover, even if condensed water adheres to the 1st exposed part 68, it is a small water droplet, generation | occurrence | production of a mold | fungi and growth are suppressed because a fungicidal agent elutes to this small water droplet.

  Similarly, with respect to the inspection port lid 92, when the heat insulating layer 30 is provided on the inspection port lid 92, it is reduced that the condensed water adheres to the second exposed portion 79 of the second layer 78. Moreover, even if condensed water adheres to the 2nd exposed part 79, it is a small water droplet, generation | occurrence | production of mold | fungi and growth are suppressed because a mildew-proof agent elutes to this small water droplet.

  By the way, a gap is provided between the inspection port 91a and the inspection port lid 92 so that the inspection port lid 92 can be opened and closed during equipment inspection, and the airtightness is low. Further, the back surface side of the rising plate portion 64 of the first base 62 around the inspection port 91a is a place where it is difficult to provide the heat insulating layer 24 due to the curved curved portion 66.

  Accordingly, water droplets larger than the first exposed portion 68 are likely to adhere around the inspection port 91a due to condensation. In addition, steam around the inspection port 91a is likely to enter from between the inspection port 91a and the inspection port lid 92, and water droplets are likely to adhere. As a result, the periphery of the inspection port 91a is a place where mold generation and growth are easier than other portions.

  Therefore, in the present embodiment, the first facing portion that continuously extends from the first exposed portion 68 via the first curved portion 71 to the rising plate portion 64 that rises upward from the horizontal plate portion 63 of the second base 62. A portion 69 is provided. Thereby, since the antifungal agent elutes in the water droplet adhering to the 1st opposing part 69, generation | occurrence | production of mold | fungi on the bathroom ceiling 21 and growth can be suppressed.

  Further, the first curved portion 71 of the first facing portion 69 is a portion in which a water droplet larger than the first exposed portion 68 is likely to adhere, so that the fungicidal agent is easily eluted, and the fungicidal function is difficult to last for a long time. Therefore, the rising plate portion 64 that extends upward from the curved portion 66 of the second base 62 is also provided with a first facing portion 69 that is an antifungal agent. Thereby, even if the antifungal agent elutes from the first bending portion 71, the concentration of the antifungal agent in the first layer 67 from the first facing portion 69 toward the first bending portion 71 causes the first anti-fungal agent to diffuse. The curved portion 71 is supplemented with a fungicide. As a result, the sustainability of the fungicidal function in the ceiling plate 91 of the bathroom 1 is improved.

  Further, since the first curved portion 71 is curved in a convex shape so as to be rounded from the first exposed portion 68 toward the first opposed portion 69, the first exposed portion 68 and the first opposed portion 69 are curved. It is located above the case where the connecting portion is bent at a right angle. Thereby, since the distance of the density | concentration diffusion of the antifungal agent performed toward the 1st curved part 71 from the 1st opposing part 69 can be shortened, replenishment of an antifungal agent can be performed at an early stage.

  On the other hand, similarly, the back surface side of the second facing portion 80 is a portion where it is difficult to provide the heat insulation layer 30 on the inspection port lid 92 because the second bending portion 82 is curved. Accordingly, water droplets that are larger than the second exposed portion 79 are likely to be generated in the second curved portion 82 due to condensation. As a result, the second bending portion 82 is a portion in which the antifungal agent is more easily eluted than the second exposed portion 79, and the antifungal function is less likely to last for a long time. Therefore, a second facing portion 80 that is an antifungal agent is also provided on the rising plate portion 75 extending upward from the curved portion 77 of the second base 73. As a result, the antifungal agent diffuses in the second layer 78 from the second facing portion 80 toward the second bending portion 82, so that the second bending portion 82 is supplemented with the antifungal agent. As a result, the sustainability of the mold prevention function on the ceiling surface of the bathroom 1 is improved. In addition, as shown in FIG. 7, a gap is formed between the inspection opening lid 92 and the ceiling plate 91 so that it can be opened and closed during equipment inspection. Therefore, if steam or the like enters from this gap, water droplets W are likely to be attached around the inspection port 91a.

  Therefore, in the present embodiment, the second facing portion 80 constituting the second layer 78 is provided on the rising plate portion 75 of the second base 73. Thereby, since the antifungal agent elutes in the water droplet W adhering to the 2nd opposing part 80, generation | occurrence | production of mold | fungi on the bathroom ceiling 21 and growth are suppressed.

  Further, the second layer 78 includes an extending portion 96 extending from the upper end of the second facing portion 80 toward the ceiling plate 91 together with the second base 73. Since the extending portion 96 is covered with the packing 97, it is a portion where water droplets are prevented from adhering due to condensation or the like. Therefore, as shown by arrow F in FIG. 7, the concentration of the fungicide can be diffused from the extending portion 96 with which the packing 97 abuts toward the second facing portion 80. As a result, the extended portion 96 can be used as a fungicide replenishment region, and the life of the second layer 78 can be further improved.

  Moreover, when a water droplet adheres over the 1st curved part 71 of the ceiling board 91 and the 2nd curved part 82 of the inspection opening lid | cover 92, there exists a possibility that a larger water drop may remain long without dripping. In this case, since the antifungal agent is eluted from both the first bending portion 71 and the second bending portion 82, the antifungal function can be effectively exhibited.

The embodiment of the present invention has been described above. However, the present invention is not limited to these descriptions. Those skilled in the art to which the above-described embodiments have been appropriately modified are included in the scope of the present invention as long as they include the features of the present invention. For example, the shape, size, material, arrangement, and the like of each element included in the bathroom ceiling 21 and the like 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 1 Bathroom, 21 Bathroom ceiling, 22,41,61 1st member, 23,42,62 1st base | substrate, 25,45,67 1st layer, 26,46,68 1st exposed part, 27,47,69 1st 1 counter part, 28, 48, 72 second member, 29, 49, 73 second base, 31, 52, 78 second layer, 32, 53, 79 second exposed part, 33, 54, 80 second counter part , 71 1st bending portion, 82 2nd bending portion, 91 ceiling plate (first member), 92 inspection port lid (second member), 96 extension portion, 97 packing (seal member)

Claims (7)

It is a bathroom ceiling that constitutes the ceiling surface of the bathroom by having a plurality of members next to each other,
The plurality of members are at least a first member;
A second member adjacent to the first member;
With
The first member is a ceiling board having an inspection port,
The second member is an inspection palate that closes the inspection opening,
The ceiling plate has a first base made of a plate-like member, and a first layer containing a fungicide that elutes into moisture,
The first layer includes a first exposed portion exposed inside the bathroom and a first facing portion that is continuous with the first exposed portion and extends upward to face the inspection port lid. So as to be provided on the first base,
The inspection palate has a second base made of a plate-like member, and a second layer containing a fungicide that elutes into moisture,
The second layer is a second exposed portion exposed to the inside of the bathroom, a second continuous portion extending from the second exposed portion, and extending upward to face the first facing portion of the first layer. The bathroom ceiling is provided on the second base so that two opposing portions are formed. The first exposed portion and the first facing portion are continuous via a first curved portion that curves in an arc shape,
The bathroom ceiling according to claim 1, wherein the second exposed portion and the second facing portion are continuous via a second curved portion that is curved in an arc shape.   The said 2nd layer is further extended to the said ceiling board from the upper end of the said 2nd opposing part with the said 2nd base | substrate, and further has an extension part which overlaps on the said ceiling board. Bathroom ceiling as described in.   The sealing member which improves the sealing performance which suppresses a movement of a water | moisture content between the said ceiling board and the said extension part was further provided between the said ceiling board and the said extension part. Bathroom ceiling as described in.   The bathroom ceiling according to claim 1, wherein the first layer is a sheet-like film.   The bathroom ceiling according to any one of claims 1 to 5, wherein the second layer is a sheet-like film.   The bathroom provided with the bathroom ceiling of any one of Claims 1-6.

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