JP6852442B2

JP6852442B2 - bathroom

Info

Publication number: JP6852442B2
Application number: JP2017025585A
Authority: JP
Inventors: 内田　哲也; 内田　　哲也; 悠子寺坂; 佑希子矢野; 宗幸浦田; 俊一中道
Original assignee: Toto Ltd
Current assignee: Toto Ltd
Priority date: 2017-02-15
Filing date: 2017-02-15
Publication date: 2021-03-31
Anticipated expiration: 2037-02-15
Also published as: JP2018131800A

Description

本発明は、浴室に関する。 The present invention relates to a bathroom.

浴室内は高温多湿の環境であるため、天井面や壁面で生じるカビの繁殖を防止するために十分な対策が必要であった。特に天井面は壁面と違い結露により生じる水滴が流下しにくいため、カビが繁殖しやすい。天井面の結露は浴室内温度に比べ室外温度が低い場合に天井板表面（浴室内側の面）に生じるものであるため、天井板の表面が室外の冷温によって冷却されないように対策することがカビ繁殖の抑制の点で考えられる。 Since the bathroom is a hot and humid environment, sufficient measures were required to prevent the growth of mold on the ceiling and walls. In particular, unlike the wall surface, water droplets generated by dew condensation do not easily flow down on the ceiling surface, so mold easily grows. Condensation on the ceiling surface occurs on the surface of the ceiling plate (the surface inside the bathroom) when the outdoor temperature is lower than the temperature inside the bathroom. Therefore, it is necessary to take measures to prevent the surface of the ceiling plate from being cooled by the cold temperature outside. It is considered in terms of suppressing reproduction.

例えば、特許文献１には、天井面全体を合成樹脂発泡体等でなる断熱材で覆うことが開示されている。また、特許文献２には、天井裏面にヒータや換気扇・乾燥機を設ける従来技術に対し、断熱材に蓄熱材及び熱緩衝材を重ね放熱のタイミングを調整することで入浴後の乾燥を促進することが開示されている。 For example, Patent Document 1 discloses that the entire ceiling surface is covered with a heat insulating material made of a synthetic resin foam or the like. Further, in Patent Document 2, in contrast to the conventional technique of providing a heater, a ventilation fan, and a dryer on the back surface of the ceiling, a heat storage material and a heat buffer material are layered on the heat insulating material to adjust the timing of heat dissipation to promote drying after bathing. Is disclosed.

特開平２−８５４５１号公報Japanese Unexamined Patent Publication No. 2-85451 特許第３９８２４７８号公報Japanese Patent No. 3982478

しかし、特許文献１のように断熱材で天井面全体を隙間無く覆うためには、浴室組み立てを行う施工現場において断熱材の切り出し、貼り付け加工を行う必要があるが、施工現場での隙間の無い高精度な加工は現実的に困難である。このため断熱材の隙間が生じ、十分な断熱性能を確保するには至っていない。 However, in order to cover the entire ceiling surface with the heat insulating material without gaps as in Patent Document 1, it is necessary to cut out and paste the heat insulating material at the construction site where the bathroom is assembled. No high-precision machining is practically difficult. For this reason, a gap is generated in the heat insulating material, and sufficient heat insulating performance has not been ensured.

また、特許文献２のようにヒータや浴室乾燥機、あるいは天井裏に加熱流路を設置するなどして結露水の発生を抑えることが考えられるが、天井裏構造の複雑化、部品コスト、ランニングコストの増大を招来するため、実用として現実的でない。さらに蓄熱材等の導入は部材コストの増加を招いてしまう。 Further, as in Patent Document 2, it is conceivable to suppress the generation of dew condensation water by installing a heater, a bathroom dryer, or a heating flow path behind the ceiling, but the structure behind the ceiling becomes complicated, the cost of parts, and running. It is not practical for practical use because it causes an increase in cost. Furthermore, the introduction of heat storage materials and the like causes an increase in member costs.

本発明は、複数の断熱部材により立体的に天井全域を被覆することで、低コスト且つ簡易構造で、さらに現場負担を減らしつつ、天井面のカビ繁殖抑制を可能とした浴室を提供することを目的とする。 The present invention provides a bathroom that can suppress mold growth on the ceiling surface while reducing the burden on the site with a low cost and a simple structure by three-dimensionally covering the entire ceiling with a plurality of heat insulating members. The purpose.

第１の発明の浴室は、四方が側壁で覆われた浴室の天井を、矩形状の天井板を用いて構成した浴室であって、前記天井板には、開口又は構造物が、単数又は複数設けられており、前記天井板の面積よりも小さく、かつ、形状が互いに異なる、複数の断熱部材を重ねることにより形成された連続被覆面によって、前記天井板の裏面の全域が覆われており、前記複数の断熱部材は、前記天井板の開口又は構造物が設けられていない領域に直接貼り付けられた主断熱部材と、前記主断熱部材に貼り付けられ、前記天井板を部分的に被覆した補助断熱部材と、を有し、前記補助断熱部材は、前記主断熱部材同士の間の隙間を覆うように設けられていることを特徴とする。
第１の発明によれば、断熱部材の公差や天井板裏面に構造物がある場合であっても、複数の断熱部材を用いて立体的に断熱部材を配置するため天井板裏面を全体的に被覆することができるため、簡易構造且つ低コストで天井カビ対策を実現することができる。
第２の発明は、第１の発明において、前記補助断熱部材は、前記構造物の上方を被覆して、前記天井板を部分的に被覆していることを特徴とする。
第２の発明によれば、複数の断熱部材を用いて天井全域を覆う立体的な連続被覆面を形成するに際し、天井板の裏面における構造体非形成領域に直接貼りつける主断熱部材と、構造体上方を覆って部分被覆する補助断熱部材の二層構造とすることで、簡易に立体被覆面を形成することができる。
第３の発明は、第２の発明において、前記主断熱部材及び前記補助断熱部材により形成された断熱面と、前記構造物との間には空間が設けられていることを特徴とする。
第３の発明によれば、天井板裏面に設けられた構造物の断熱部材による被覆において、構造物の周囲に隙間ができるように主断熱部材および補助断熱部材で被覆することにより、断熱部材の公差や配置バラツキを吸収するとともに、上記隙間を空気断熱層として利用することができる。
第４の発明は、第３の発明において、前記補助断熱部材は、前記主断熱部材よりも厚みが薄いことを特徴とする。
第４の発明によれば、二層目の補助断熱部材を薄くすることで、天井裏の狭空間の設置制約や作業困難性を低減することができる。
第５の発明は、第４の発明において、前記天井板は、第１の天井板と第２の天井板とを連結して形成されるものであって、前記構造物は、前記第１の天井板と前記第２の天井板とを連結するための連結材であることを特徴とする。
第５の発明によれば、二枚の天井板を現場で連結して設置する場合において、二枚の天井板を現場で連結した後に、点検口を通じた作業により補助断熱部材を配置することが可能なため、現場での高い断熱構造を形成することができる。
第６の発明は、第５の発明において、前記補助断熱部材は、熱可塑性樹脂系の発泡体であることを特徴とする。
第６の発明によれば、補助断熱部材として、薄くても十分な断熱性能をもつ熱可塑性樹脂系の発泡体を用いることで、低コストで作業性の高い立体的断熱被覆を実現することができる。
第７の発明は、第５の発明において、前記矩形状の天井板の少なくとも３辺には、端部が略揃うように前記主断熱部材が配置されていることを特徴とする。
第７の発明によれば、天井板に直接貼り付ける主断熱部材の貼り付けに際し、天井板の端部（辺）にそろえて主断熱部材を貼ることで隙間を極力排除し、断熱性能を向上させることができる。
第８の発明は、第７の発明において、前記天井板の４辺は、嵌合された天井廻し縁によって前記側壁と接合され、前記主断熱部材は矩形状であり、少なくとも１辺は前記天井廻し縁に当接されていることを特徴とする。
第８の発明によれば、主断熱部材の端部が当接するように天井廻し縁を構成することで、天井板に対して主断熱部材の端部を揃えること（位置合わせ）が容易となり、組立て作業性を向上させることができる。
第９の発明は、第８の発明において、前記天井廻し縁は、金属よりも熱伝導率が低い材料であることを特徴とする。
第９の発明によれば、天井廻し縁を鋼板等の金属よりも熱伝導率が低い材料とすることで、天井裏面側の冷気が天井廻し縁を伝って天井板の表面（浴室内側の面）側に熱伝達することを阻止し、天井の断熱性能を担保することができる。
第１０の発明は、第５の発明において、前記補助断熱部材は、前記天井板に設けられた前記開口でなる点検口の近傍にのみ配置されていることを特徴とする。
第１０の発明によれば、点検口の近傍に補助断熱部材を配置する構成とすることで、天井板が側壁に載置された状態で、作業者が点検口から補助断熱部材を天井板の裏面側に配置することができるため、組み立て時や補修時等の作業性が向上する。
第１１の発明は、第３の発明において、前記浴室の内部を照らす照明器具を有し、前記照明器具は前記空間の近傍に設けられていることを特徴とする。
第１１の発明によれば、照明器具は発熱源となるため、当該熱量を特に断熱性能の弱い部分（断熱部材がカバーしていない領域）に近接するように配置することで、浴室使用時の断熱性能を向上させることができる。
The bathroom of the first invention is a bathroom in which the ceiling of the bathroom covered with side walls on all sides is formed by using a rectangular ceiling plate, and the ceiling plate has one or more openings or structures. provided, smaller than the area of the ceiling plate, and the shape are different from each other, by a continuous coating surface formed by overlapping a plurality of heat insulating members, the entire region of the back surface of the top plate is covered, The plurality of heat insulating members are a main heat insulating member directly attached to an area of the ceiling plate where an opening or a structure is not provided, and a main heat insulating member attached to the main heat insulating member to partially cover the ceiling plate. It has an auxiliary heat insulating member, and the auxiliary heat insulating member is provided so as to cover a gap between the main heat insulating members .
According to the first invention, even if there is a tolerance of the heat insulating member or a structure on the back surface of the ceiling plate, the back surface of the ceiling plate is entirely arranged in order to arrange the heat insulating member three-dimensionally by using a plurality of heat insulating members. Since it can be covered, it is possible to realize measures against ceiling mold with a simple structure and low cost.
The second invention according to the first invention, the auxiliary thermal insulation member, and covers the upper side of the structure, characterized in that it covers the top plate partially.
According to the second invention, when forming a three-dimensional continuous covering surface covering the entire ceiling using a plurality of heat insulating members, a main heat insulating member directly attached to a structure non-forming region on the back surface of the ceiling plate and a structure. A three-dimensional covering surface can be easily formed by forming a two-layer structure of an auxiliary heat insulating member that partially covers the upper part of the body.
The third invention is characterized in that, in the second invention, a space is provided between the heat insulating surface formed by the main heat insulating member and the auxiliary heat insulating member and the structure.
According to the third invention, in the coating with the heat insulating member of the structure provided on the back surface of the ceiling plate, the heat insulating member is covered by the main heat insulating member and the auxiliary heat insulating member so as to form a gap around the structure. While absorbing tolerances and arrangement variations, the gap can be used as an air insulation layer.
A fourth invention is characterized in that, in the third invention, the auxiliary heat insulating member is thinner than the main heat insulating member.
According to the fourth invention, by thinning the auxiliary heat insulating member of the second layer, it is possible to reduce the installation restriction and work difficulty in the narrow space behind the ceiling.
A fifth aspect of the present invention is the fourth aspect of the present invention, wherein the ceiling plate is formed by connecting a first ceiling plate and a second ceiling plate, and the structure is the first ceiling plate. It is a connecting material for connecting the ceiling plate and the second ceiling plate.
According to the fifth invention, in the case where two ceiling boards are connected and installed at the site, after connecting the two ceiling boards at the site, the auxiliary heat insulating member can be arranged by the work through the inspection port. Since it is possible, it is possible to form a high heat insulating structure in the field.
A sixth aspect of the present invention is the fifth aspect of the present invention, wherein the auxiliary heat insulating member is a thermoplastic resin-based foam.
According to the sixth invention, by using a thermoplastic resin-based foam having sufficient heat insulating performance even if it is thin as an auxiliary heat insulating member, it is possible to realize a three-dimensional heat insulating coating with high workability at low cost. it can.
A seventh aspect of the invention is characterized in that, in the fifth aspect of the invention, the main heat insulating member is arranged on at least three sides of the rectangular ceiling plate so that the ends are substantially aligned.
According to the seventh invention, when the main heat insulating member to be directly attached to the ceiling plate is attached, the gap is eliminated as much as possible and the heat insulating performance is improved by attaching the main heat insulating member so as to be aligned with the end (side) of the ceiling plate. Can be made to.
In the eighth aspect of the invention, in the seventh aspect, the four sides of the ceiling plate are joined to the side wall by the fitted ceiling peripheral edge, the main heat insulating member is rectangular, and at least one side is the ceiling. It is characterized in that it is in contact with the rotating edge.
According to the eighth invention, by configuring the ceiling peripheral edge so that the ends of the main heat insulating member come into contact with each other, it becomes easy to align (align) the ends of the main heat insulating member with respect to the ceiling plate. Assembling workability can be improved.
A ninth aspect of the present invention is characterized in that, in the eighth aspect of the invention, the ceiling peripheral edge is made of a material having a lower thermal conductivity than that of metal.
According to the ninth invention, by using a material having a lower thermal conductivity than a metal such as a steel plate, the cold air on the back side of the ceiling is transmitted along the ceiling peripheral edge to the surface of the ceiling plate (the surface inside the bathroom). ) It is possible to prevent heat transfer to the side and ensure the heat insulation performance of the ceiling.
A tenth aspect of the present invention is characterized in that, in the fifth aspect of the invention, the auxiliary heat insulating member is arranged only in the vicinity of an inspection port formed by the opening provided in the ceiling plate.
According to the tenth invention, by arranging the auxiliary heat insulating member in the vicinity of the inspection port, the operator can attach the auxiliary heat insulating member from the inspection port to the ceiling plate while the ceiling plate is placed on the side wall. Since it can be placed on the back side, workability during assembly and repair is improved.
The eleventh invention is characterized in that, in the third invention, the luminaire has a luminaire that illuminates the inside of the bathroom, and the luminaire is provided in the vicinity of the space.
According to the eleventh invention, since the luminaire serves as a heat generating source, the amount of heat is arranged so as to be close to a portion having a particularly weak heat insulating performance (a region not covered by the heat insulating member) when the bathroom is used. The heat insulation performance can be improved.

本発明によれば、低コスト且つ簡易構造で、さらに現場負担を減らしつつ、天井面のカビ繁殖抑制を可能にする。 According to the present invention, it is possible to suppress the growth of mold on the ceiling surface while further reducing the burden on the site with a low cost and a simple structure.

実施形態の浴室の模式斜視図。The schematic perspective view of the bathroom of an embodiment. （ａ）は実施形態の天井板の裏側の模式斜視図であり、（ｂ）は図２（ａ）におけるＡ部の拡大側面図。(A) is a schematic perspective view of the back side of the ceiling plate of the embodiment, and (b) is an enlarged side view of part A in FIG. 2 (a). （ａ）は図２（ａ）から補助断熱部材を取り除いた状態の模式斜視図であり、（ｂ）は図３（ａ）におけるＡ部の拡大斜視図。(A) is a schematic perspective view of a state in which the auxiliary heat insulating member is removed from FIG. 2 (a), and (b) is an enlarged perspective view of part A in FIG. 3 (a). （ａ）は図２（ａ）におけるＡ−Ａ’断面図であり、（ｂ）及び（ｃ）は図４（ａ）と同様の断面部分の他の例を示す模式断面図。(A) is a cross-sectional view taken along the line AA'in FIG. 2A, and FIGS. 2B and 4C are schematic cross-sectional views showing another example of a cross-sectional portion similar to that shown in FIG. 4A. 天井板と側壁との接合部の模式断面図。Schematic cross-sectional view of the joint between the ceiling board and the side wall. 天井板の裏面の模式平面図。Schematic plan view of the back surface of the ceiling board. （ａ）は天井板の裏面における換気口の近傍部分の模式平面図であり、（ｂ）は天井板の表面における換気口の近傍部分の模式平面図であり、（ｃ）は換気口の縁部近傍の模式断面図。(A) is a schematic plan view of a portion near the ventilation port on the back surface of the ceiling plate, (b) is a schematic plan view of a portion near the ventilation port on the surface of the ceiling plate, and (c) is an edge of the ventilation port. Schematic cross-sectional view of the vicinity of the part. 天井板に形成された円形開口の近傍の模式斜視図。Schematic perspective view of the vicinity of the circular opening formed in the ceiling board.

以下、添付図面を参照しながら本発明の実施の形態について説明する。説明の理解を容易にするため、各図面において同一の構成要素に対しては可能な限り同一の符号を付して、重複する説明は省略する。 Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. In order to facilitate understanding of the description, the same components are designated by the same reference numerals as much as possible in each drawing, and duplicate description is omitted.

図１は、実施形態の浴室５００の模式斜視図である。 FIG. 1 is a schematic perspective view of the bathroom 500 of the embodiment.

浴室５００は、四方が４つの側壁５４１、５４２、５４３、５４４で覆われている。４つの側壁５４１〜５４４の上端部の上に天井板１００が載置されている。なお、以下の説明において、４つの側壁５４１〜５４４を区別せずに、まとめて側壁５４０で表す場合もある。 The bathroom 500 is covered with four side walls 541, 542, 543, 544 on all sides. The ceiling plate 100 is placed on the upper ends of the four side walls 541 to 544. In the following description, the four side walls 541 to 544 may be collectively represented by the side wall 540 without distinction.

浴室５００内には、浴槽５１０、洗い場床５２０、カウンター５３１、鏡５３３、水栓装置５３２、ハンドシャワー５３４などが適宜設けられている。 In the bathroom 500, a bathtub 510, a washing floor 520, a counter 531, a mirror 533, a faucet device 532, a hand shower 534, and the like are appropriately provided.

図２（ａ）は、天井板１００の裏側（浴室の外側）の模式斜視図である。
図２（ｂ）は、図２（ａ）におけるＡ部の拡大側面図である。なお、図２（ｂ）において、図２（ａ）に示す側面補助断熱部材６４、６５の図示は省略している。
図３（ａ）は、図２（ａ）から補助断熱部材６１、６２、６３を取り除いた状態の模式斜視図である。
図３（ｂ）は、図３（ａ）におけるＡ部の拡大斜視図である。
図４（ａ）は、図２（ａ）におけるＡ−Ａ’断面図である。
図５は、天井板１００と側壁５４０との接合部の模式断面図である。
図６は、天井板１００の裏面の模式平面図である。 FIG. 2A is a schematic perspective view of the back side (outside of the bathroom) of the ceiling plate 100.
FIG. 2B is an enlarged side view of part A in FIG. 2A. In FIG. 2B, the side auxiliary heat insulating members 64 and 65 shown in FIG. 2A are not shown.
FIG. 3A is a schematic perspective view showing a state in which the auxiliary heat insulating members 61, 62, and 63 are removed from FIG. 2A.
FIG. 3B is an enlarged perspective view of part A in FIG. 3A.
FIG. 4A is a cross-sectional view taken along the line AA'in FIG. 2A.
FIG. 5 is a schematic cross-sectional view of the joint portion between the ceiling plate 100 and the side wall 540.
FIG. 6 is a schematic plan view of the back surface of the ceiling plate 100.

図６に示すように、天井板１００は矩形状に形成されている。浴室の広さによっては施工上の点で例えば２枚の天井板を現場で連結して設置する。例えば、天井板１００は、第１の天井板１０と第２の天井板２０とを連結して形成される。第１の天井板１０は矩形状に形成され、第２の天井板２０も矩形状に形成されている。 As shown in FIG. 6, the ceiling plate 100 is formed in a rectangular shape. Depending on the size of the bathroom, for example, two ceiling boards may be connected and installed at the site in terms of construction. For example, the ceiling plate 100 is formed by connecting the first ceiling plate 10 and the second ceiling plate 20. The first ceiling plate 10 is formed in a rectangular shape, and the second ceiling plate 20 is also formed in a rectangular shape.

第１の天井板１０および第２の天井板２０はともに、図２（ｂ）に示すように、化粧鋼板４と石膏ボード３を組み合わせて構成されている。化粧鋼板４は、石膏ボード３よりも薄く、浴室の内側に面する。 Both the first ceiling plate 10 and the second ceiling plate 20 are configured by combining the decorative steel plate 4 and the gypsum board 3 as shown in FIG. 2 (b). The decorative steel plate 4 is thinner than the gypsum board 3 and faces the inside of the bathroom.

天井板１００には、複数の開口が形成されている。図６に示す例では、第１の天井板１０に換気口３１と１つの円形開口３３が形成され、第２の天井板２０に点検口３２（図６では点検口蓋３５によって塞がれている）と２つの円形開口３３が形成されている。その他、天井板１００には、オーバーヘッドシャワーの配管用の開口が形成される場合もある。 A plurality of openings are formed in the ceiling plate 100. In the example shown in FIG. 6, a ventilation port 31 and one circular opening 33 are formed in the first ceiling plate 10, and an inspection port 32 (in FIG. 6 is closed by an inspection palate 35) in the second ceiling plate 20. ) And two circular openings 33 are formed. In addition, the ceiling plate 100 may be formed with an opening for piping of an overhead shower.

また、天井板１００には、種々の構造物が設けられる。その構造物としては、換気手段、暖房・乾燥手段、送風手段、補強板、連結材、照明器具、スピーカー、ダクトなどが挙げられる。 Further, various structures are provided on the ceiling plate 100. Examples of the structure include ventilation means, heating / drying means, ventilation means, reinforcing plates, connecting materials, lighting equipment, speakers, ducts and the like.

上記構造物の一つである連結材は、図２（ｂ）に示すように、第１の天井板１０に貼り付けられた第１の連結材４３と、第２の天井板２０に貼り付けられた第２の連結材４４とを有し、それら第１の連結材４３の係合部４３ａと、第２の連結材４４の係合部４４ａどうしが係合することで、第１の天井板１０と第２の天井板２０とが連結される。 As shown in FIG. 2B, the connecting material, which is one of the above structures, is attached to the first connecting material 43 attached to the first ceiling plate 10 and the second ceiling plate 20. The first ceiling is provided by having the second connecting member 44, and the engaging portion 43a of the first connecting member 43 and the engaging portion 44a of the second connecting member 44 are engaged with each other. The plate 10 and the second ceiling plate 20 are connected.

また、第１の連結材４３は、第１の天井板１０の裏面上で第１の天井板１０の長手方向に延びる補強部４３ｂも有する。同様に、第２の連結材４４も、第２の天井板２０の裏面上で第２の天井板２０の長手方向に延びる補強部４４ｂを有する。これら補強部４３ｂ、４４ｂは、天井板１０、２０の曲げや撓みに対する強度を高める。 The first connecting member 43 also has a reinforcing portion 43b extending in the longitudinal direction of the first ceiling plate 10 on the back surface of the first ceiling plate 10. Similarly, the second connecting member 44 also has a reinforcing portion 44b extending in the longitudinal direction of the second ceiling plate 20 on the back surface of the second ceiling plate 20. These reinforcing portions 43b and 44b increase the strength of the ceiling plates 10 and 20 against bending and bending.

また、図６に示すように、第１の天井板１０の裏面における連結材４３の近傍には、第１の天井板１０の長手方向に延びる補強板４１が設けられている。第２の天井板２０の裏面における点検口３２の近傍には、第２の天井板２０の長手方向に延びる補強板４２が設けられている。これら補強板４１、４２も、天井板１０、２０の曲げや撓みに対する強度を高める。補強板４１は、第１の天井板１０の長手方向の全長にわたって延在している。図６に示す例では、補強板４２の長さは第２の天井板２０の長手方向の長さよりも短いが、補強板４２についても第２の天井板２０の長手方向の全長にわたって延在していてもよい。 Further, as shown in FIG. 6, a reinforcing plate 41 extending in the longitudinal direction of the first ceiling plate 10 is provided in the vicinity of the connecting member 43 on the back surface of the first ceiling plate 10. A reinforcing plate 42 extending in the longitudinal direction of the second ceiling plate 20 is provided in the vicinity of the inspection port 32 on the back surface of the second ceiling plate 20. These reinforcing plates 41 and 42 also increase the strength of the ceiling plates 10 and 20 against bending and bending. The reinforcing plate 41 extends over the entire length of the first ceiling plate 10 in the longitudinal direction. In the example shown in FIG. 6, the length of the reinforcing plate 42 is shorter than the length of the second ceiling plate 20 in the longitudinal direction, but the reinforcing plate 42 also extends over the entire length of the second ceiling plate 20 in the longitudinal direction. It may be.

天井板１０、２０の裏面には、複数の断熱部材が設けられている。複数の断熱部材は、図２（ａ）および図３（ａ）に示すように、主断熱部材（第１の断熱部材）５１、５２、５３と、補助断熱部材（第２の断熱部材）６１、６２、６３とを有する。 A plurality of heat insulating members are provided on the back surfaces of the ceiling plates 10 and 20. As shown in FIGS. 2A and 3A, the plurality of heat insulating members include a main heat insulating member (first heat insulating member) 51, 52, 53 and an auxiliary heat insulating member (second heat insulating member) 61. , 62, 63 and.

主断熱部材５１、５２は、天井板１００の裏面における、開口（換気口３１、点検口３２、円形開口３３）および構造物（補強板４１、４２、連結材４３、４４）が設けられていない領域に直接貼り付けられている。 The main heat insulating members 51 and 52 are not provided with openings (ventilation port 31, inspection port 32, circular opening 33) and structures (reinforcing plates 41, 42, connecting members 43, 44) on the back surface of the ceiling plate 100. It is pasted directly into the area.

また、点検口蓋３５の裏面に主断熱部材５３が貼り付けられている。図４（ａ）に示すように、点検口蓋３５も、化粧鋼板６と石膏ボード５を貼り合わせて構成される。点検口蓋３５の外周側の縁部が、点検口３２近傍の天井板２０の裏面に載っている。 Further, a main heat insulating member 53 is attached to the back surface of the inspection palate 35. As shown in FIG. 4A, the inspection palate 35 is also configured by laminating the decorative steel plate 6 and the gypsum board 5. The outer peripheral edge of the inspection palate 35 is mounted on the back surface of the ceiling plate 20 near the inspection port 32.

図２（ｂ）に示すように、補助断熱部材６１が、補強板４１および連結材４３、４４の上方を被覆して主断熱部材５１、５２に貼り付けられ、天井板１００の裏面を部分的に被覆している。補助断熱部材６１の幅方向（短手方向）の両端部の裏面が、主断熱部材５１、５２の上面に接着されている。補助断熱部材６１は、主断熱部材５１、５２との接着部分で両持ち支持され、天井板１００の裏面に対して上方に離間して、補強板４１および連結材４３、４４が配置された領域を覆っている。 As shown in FIG. 2B, the auxiliary heat insulating member 61 covers the upper part of the reinforcing plate 41 and the connecting members 43 and 44 and is attached to the main heat insulating members 51 and 52, and the back surface of the ceiling plate 100 is partially covered. It is covered with. The back surfaces of both ends of the auxiliary heat insulating member 61 in the width direction (short direction) are adhered to the upper surfaces of the main heat insulating members 51 and 52. The auxiliary heat insulating member 61 is supported by both sides at the adhesive portion with the main heat insulating members 51 and 52, and is separated upward from the back surface of the ceiling plate 100, and the reinforcing plate 41 and the connecting members 43 and 44 are arranged. Covering.

また、第２の天井板２０の裏面に設けられた図３（ａ）に示す補強板４２の上方を、図２（ａ）に示す補助断熱部材６３が被覆している。補助断熱部材６３は、第２の天井板２０上の主断熱部材５２に貼り付けられている。 Further, the auxiliary heat insulating member 63 shown in FIG. 2A covers the upper part of the reinforcing plate 42 shown in FIG. 3A provided on the back surface of the second ceiling plate 20. The auxiliary heat insulating member 63 is attached to the main heat insulating member 52 on the second ceiling plate 20.

図４（ａ）に示すように、補助断熱部材６２が、第２の天井板２０の裏面に貼り付けられた主断熱部材５２と、点検口蓋３５の裏面に貼り付けられた主断熱部材５３との間の隙間９３を被覆して主断熱部材５２、５３に貼り付けられ、天井板２０の裏面を部分的に被覆している。 As shown in FIG. 4A, the auxiliary heat insulating member 62 includes a main heat insulating member 52 attached to the back surface of the second ceiling plate 20 and a main heat insulating member 53 attached to the back surface of the inspection palate 35. The gap 93 between them is covered and attached to the main heat insulating members 52 and 53, and the back surface of the ceiling plate 20 is partially covered.

主断熱部材５２の上面高さと、主断熱部材５３の上面高さとは略同じである。補助断熱部材６２の幅方向（短手方向）の両端部の裏面が、主断熱部材５２、５３の上面に接着されている。補助断熱部材６２は、天井板２０の裏面に対して上方に離間して、上記隙間９３を覆っている。 The height of the upper surface of the main heat insulating member 52 and the height of the upper surface of the main heat insulating member 53 are substantially the same. The back surfaces of both ends of the auxiliary heat insulating member 62 in the width direction (short direction) are adhered to the upper surfaces of the main heat insulating members 52 and 53. The auxiliary heat insulating member 62 is separated upward from the back surface of the ceiling plate 20 and covers the gap 93.

図４（ｂ）は、図４（ａ）と同様の断面部分の他の例を示す模式断面図である。 FIG. 4B is a schematic cross-sectional view showing another example of the cross-sectional portion similar to that of FIG. 4A.

この図４（ｂ）に示す例では、点検口蓋３５の裏面に貼り付けられた主断熱部材５４のフランジ状の一部５４ａが、天井板２０の裏面に貼り付けられた主断熱部材５２の上方の領域まで延びている。 In the example shown in FIG. 4B, a flange-shaped part 54a of the main heat insulating member 54 attached to the back surface of the inspection palate 35 is above the main heat insulating member 52 attached to the back surface of the ceiling plate 20. Extends to the area of.

その主断熱部材５４の一部５４ａは、点検口３２の４辺に沿って連続して形成され、点検口蓋３５上の主断熱部材５４と、天井板２０上の主断熱部材５２との間の隙間９３を覆っている。主断熱部材５４の一部５４ａと、主断熱部材５２とが上下方向に重なっている部分の間には補助断熱部材６６が介在され、主断熱部材５４の一部５４ａと主断熱部材５２との高さの違いを吸収している。その補助断熱部材６６は、点検口３２の４辺に沿って連続して形成されている。 A part 54a of the main heat insulating member 54 is continuously formed along the four sides of the inspection port 32, and is between the main heat insulating member 54 on the inspection palate 35 and the main heat insulating member 52 on the ceiling plate 20. It covers the gap 93. An auxiliary heat insulating member 66 is interposed between a part 54a of the main heat insulating member 54 and a part where the main heat insulating member 52 overlaps in the vertical direction, and the part 54a of the main heat insulating member 54 and the main heat insulating member 52 It absorbs the difference in height. The auxiliary heat insulating member 66 is continuously formed along the four sides of the inspection port 32.

天井板１００を側壁５４０に載置した後、浴室内から作業者が点検口３２を通じて天井板１００の裏面側に補助断熱部材６１を配置作業可能な範囲内である、点検口３２の近傍に補助断熱材６１は配置されている。 After the ceiling plate 100 is placed on the side wall 540, the auxiliary heat insulating member 61 is arranged on the back surface side of the ceiling plate 100 from inside the bathroom through the inspection port 32. The heat insulating material 61 is arranged.

点検口３２の周辺の補助断熱部材６２については、その一部（幅方向の半分ほどの領域）を、点検口蓋３５を点検口３２に嵌める前に、点検口蓋３５に貼られた主断熱部材５３の裏面の縁部近傍に貼り付けておく。そして、それら主断熱部材５３および補助断熱部材６２が貼り付けられた状態で点検口蓋３５を縦又は斜めに傾けつつ点検口３２を通し、天井裏に入れる。そして、図４（ａ）に示すように点検口蓋３５の縁部を天井板２０の裏面に載置する（落とし込む）。このとき、補助断熱部材６２の残りの半分ほどの領域が主断熱部材５２の上面に載る。 Regarding the auxiliary heat insulating member 62 around the inspection port 32, a part of the auxiliary heat insulating member 62 (a region of about half in the width direction) is attached to the main heat insulating member 53 attached to the inspection palate 35 before the inspection palate 35 is fitted into the inspection port 32. Stick it near the edge of the back side of. Then, with the main heat insulating member 53 and the auxiliary heat insulating member 62 attached, the inspection palate 35 is tilted vertically or diagonally and passed through the inspection port 32 and put into the ceiling. Then, as shown in FIG. 4A, the edge portion of the inspection palate 35 is placed (dropped) on the back surface of the ceiling plate 20. At this time, about the other half of the area of the auxiliary heat insulating member 62 is placed on the upper surface of the main heat insulating member 52.

主断熱部材５１、５２、５３、５４は、例えば発泡スチロールである。補助断熱部材６１、６２、６３、６６は、熱可塑性樹脂系の発泡体であり、例えばポリオレフィンフォームである。補助断熱部材６１、６２、６３、６６は、主断熱部材５１、５２、５３、５４よりも厚みが薄い。 The main heat insulating members 51, 52, 53, 54 are, for example, Styrofoam. The auxiliary heat insulating members 61, 62, 63, 66 are thermoplastic resin-based foams, for example, polyolefin foam. The auxiliary heat insulating members 61, 62, 63, 66 are thinner than the main heat insulating members 51, 52, 53, 54.

また、２つの天井板１０、２０の連結部近傍における主断熱部材５１の側面と主断熱部材５２の側面との間の隙間を覆うように、図２（ａ）に示す側面補助断熱部材６４、６５が貼り付けられている。 Further, the side auxiliary heat insulating member 64 shown in FIG. 2A so as to cover the gap between the side surface of the main heat insulating member 51 and the side surface of the main heat insulating member 52 in the vicinity of the connecting portion of the two ceiling plates 10 and 20. 65 is pasted.

図２（ａ）において手前に現れている側面の反対側の奥側の側面にも側面補助断熱部材６４、６５が貼り付けられている。側面補助断熱部材６４、６５は、補強板４１および連結材４３、４４が配置された領域の端（長手方向の端）を被覆している。側面補助断熱部材６４、６５は、第１の天井板１０と第２の天井板２０との境界で分割されている。 Side auxiliary heat insulating members 64 and 65 are also attached to the side surface on the back side opposite to the side surface appearing in the foreground in FIG. 2 (a). The side auxiliary heat insulating members 64 and 65 cover the ends (longitudinal ends) of the regions where the reinforcing plates 41 and the connecting members 43 and 44 are arranged. The side auxiliary heat insulating members 64 and 65 are divided at the boundary between the first ceiling plate 10 and the second ceiling plate 20.

側面補助断熱部材６４、６５も、上記補助断熱部材６１、６２、６３、６６と同じ材料であり、また主断熱部材５１、５２、５３、５４よりも厚みが薄い。 The side auxiliary heat insulating members 64 and 65 are also made of the same material as the auxiliary heat insulating members 61, 62, 63 and 66, and are thinner than the main heat insulating members 51, 52, 53 and 54.

図２（ｂ）に示すように、補強板４１の上面高さと連結材４３、４４の上面高さは略同じである。そして、主断熱部材５１、５２の上面高さは、上記構造物（補強板４１、連結材４３、４４）の上面高さよりも高い。また、第１の天井板１０に配置された主断熱部材５１の補強板４１側の側面は、補強板４１に対して離間している。第２の天井板２０に配置された主断熱部材５２の連結材４４側の側面は、連結材４４に対して離間している。 As shown in FIG. 2B, the height of the upper surface of the reinforcing plate 41 and the height of the upper surface of the connecting members 43 and 44 are substantially the same. The height of the upper surfaces of the main heat insulating members 51 and 52 is higher than the height of the upper surfaces of the above-mentioned structures (reinforcing plate 41, connecting members 43 and 44). Further, the side surface of the main heat insulating member 51 arranged on the first ceiling plate 10 on the reinforcing plate 41 side is separated from the reinforcing plate 41. The side surface of the main heat insulating member 52 arranged on the second ceiling plate 20 on the connecting member 44 side is separated from the connecting member 44.

したがって、主断熱部材５１、５２及び補助断熱部材６１により形成された立体的な断熱面（図２（ｂ）において破線で模式的に表す）と、構造物（補強板４１、連結材４３、４４）の側面および上面との間には空間（隙間）９０が設けられている。 Therefore, a three-dimensional heat insulating surface (schematically represented by a broken line in FIG. 2B) formed by the main heat insulating members 51 and 52 and the auxiliary heat insulating member 61 and a structure (reinforcing plate 41, connecting members 43, 44). ) Is provided with a space (gap) 90 between the side surface and the upper surface.

第２の天井板２０に設けられた図３（ａ）に示す補強板４２と主断熱部材５２との間、および補強板４２と主断熱部材５３との間にも隙間が設けられている。 A gap is provided between the reinforcing plate 42 and the main heat insulating member 52 shown in FIG. 3A provided on the second ceiling plate 20 and between the reinforcing plate 42 and the main heat insulating member 53.

また、その補強板４２の上面高さは、主断熱部材５２、５３の上面高さよりも低い。したがって、補強板４２の上面と、その補強板４２を覆う図２（ａ）に示す補助断熱部材６３との間にも隙間が設けられている。 Further, the height of the upper surface of the reinforcing plate 42 is lower than the height of the upper surface of the main heat insulating members 52 and 53. Therefore, a gap is also provided between the upper surface of the reinforcing plate 42 and the auxiliary heat insulating member 63 shown in FIG. 2A covering the reinforcing plate 42.

第１の天井板１０の裏面に貼り付けられた主断熱部材５１は、第１の天井板１０における連結材４３、４４側の１辺を除く３辺に端部が略揃うように配置されている。第２の天井板２０の裏面に貼り付けられた主断熱部材５２は、第２の天井板２０における連結材４３、４４側の１辺を除く３辺に端部が略揃うように配置されている。 The main heat insulating member 51 attached to the back surface of the first ceiling plate 10 is arranged so that the ends thereof are substantially aligned on three sides of the first ceiling plate 10 except for one side of the connecting members 43 and 44. There is. The main heat insulating member 52 attached to the back surface of the second ceiling plate 20 is arranged so that the ends thereof are substantially aligned on three sides of the second ceiling plate 20 except for one side of the connecting members 43 and 44. There is.

天井板１００の４辺（図５にはそのうちの１辺を示す）には天井廻し縁７０が嵌合している。第１の天井板１０における連結材４３、４４側の１辺を除く３辺は、天井廻し縁７０を介して浴室の側壁５４０と接合されている。第２の天井板２０における連結材４３、４４側の１辺を除く３辺は、天井廻し縁７０を介して浴室の側壁５４０と接合されている。 Ceiling peripheral edges 70 are fitted to the four sides of the ceiling plate 100 (one of which is shown in FIG. 5). The three sides of the first ceiling plate 10 except for one side on the connecting members 43 and 44 sides are joined to the side wall 540 of the bathroom via the ceiling peripheral edge 70. The three sides of the second ceiling plate 20, excluding one side on the connecting members 43 and 44 sides, are joined to the side wall 540 of the bathroom via the ceiling peripheral edge 70.

天井廻し縁７０は、水平方向に突出した２つの突出部７１、７２の間に形成された第１の嵌合部７５と、下方に突出した２つの突出部７３、７４の間に形成された第２の嵌合部７６とを有する。第１の嵌合部７５に天井板１００の辺が嵌合され、第２の嵌合部７６に側壁５４０の上端部が嵌合される。 The ceiling peripheral edge 70 is formed between a first fitting portion 75 formed between two horizontally protruding protrusions 71 and 72 and two downwardly protruding protrusions 73 and 74. It has a second fitting portion 76. The side of the ceiling plate 100 is fitted to the first fitting portion 75, and the upper end portion of the side wall 540 is fitted to the second fitting portion 76.

天井板１００の辺は、第１の嵌合部７５に接着固定され、さらに上からタッカーで留められている。側壁５４０は、突出部７４を貫通するねじ８１によって天井廻し縁７０と固定される。突出部７４には天井目地７８が取り付けられ、ねじ８１は天井目地７８によって覆い隠される。 The side of the ceiling plate 100 is adhesively fixed to the first fitting portion 75, and is further fastened with a tacker from above. The side wall 540 is fixed to the ceiling peripheral edge 70 by a screw 81 penetrating the protrusion 74. A ceiling joint 78 is attached to the protrusion 74, and the screw 81 is covered by the ceiling joint 78.

外形形状（輪郭）が矩形状の主断熱部材５１、５２における連結材４３、４４側の１辺を除く３辺のうち少なくとも１辺は、図５に示すように天井廻し縁７０に当接している。 At least one of the three sides of the main heat insulating members 51 and 52 having a rectangular outer shape (contour) excluding one side on the connecting members 43 and 44 sides is in contact with the ceiling peripheral edge 70 as shown in FIG. There is.

天井廻し縁７０は、金属（例えば鋼板）よりも熱伝導率が低い材料、例えば樹脂材料で形成されている。 The ceiling peripheral edge 70 is made of a material having a lower thermal conductivity than that of a metal (for example, a steel plate), for example, a resin material.

図７（ａ）は、第１の天井板１０の裏面における換気口３１の近傍部分の模式平面図である。
図７（ｂ）は、第１の天井板１０の表面（浴室内に面する面）における換気口３１の近傍部分の模式平面図である。
図７（ｃ）は、換気口３１の縁部近傍の模式断面図である。 FIG. 7A is a schematic plan view of a portion near the ventilation port 31 on the back surface of the first ceiling plate 10.
FIG. 7B is a schematic plan view of a portion near the ventilation port 31 on the surface of the first ceiling plate 10 (the surface facing the inside of the bathroom).
FIG. 7C is a schematic cross-sectional view of the vicinity of the edge of the ventilation port 31.

換気口３１には、換気手段として例えば暖房換気扇２０１が設けられている。換気口３１近傍の天井板１０に取付部材２０２が取り付けられ、その取付部材２０２に対して暖房換気扇２０１がねじ８２によって固定されている。 The ventilation port 31 is provided with, for example, a heating ventilation fan 201 as a ventilation means. A mounting member 202 is attached to the ceiling plate 10 near the ventilation port 31, and the heating ventilation fan 201 is fixed to the mounting member 202 by screws 82.

主断熱部材５１は、構造物（暖房換気扇２０１および取付部材２０２）を避けるように配置され、その構造物と主断熱部材５１との間には空間（隙間）９４が形成されている。なお、その空間９４を被覆するため、構造物（暖房換気扇２０１および取付部材２０２）の少なくとも一部にかかるように補助断熱部材を貼り付けることも考えられるが、これは電源、モータ、回路部品などの放熱性を妨げるので好ましくない。 The main heat insulating member 51 is arranged so as to avoid the structure (heating / ventilation fan 201 and mounting member 202), and a space (gap) 94 is formed between the structure and the main heat insulating member 51. In order to cover the space 94, it is conceivable to attach an auxiliary heat insulating member so as to cover at least a part of the structure (heating / ventilation fan 201 and mounting member 202), but this is a power supply, a motor, a circuit component, or the like. It is not preferable because it interferes with the heat dissipation of the.

図８は、天井板１００（１０、２０）に形成された円形開口３３の近傍の模式斜視図である。 FIG. 8 is a schematic perspective view of the vicinity of the circular opening 33 formed in the ceiling plate 100 (10, 20).

天井板１００に形成された円形開口３３には、浴室の内部を照らす照明器具（ダウンライト）３０１が取り付けられる。 A lighting fixture (downlight) 301 that illuminates the inside of the bathroom is attached to the circular opening 33 formed in the ceiling plate 100.

主断熱部材５１、５２にも天井板１００の円形開口３３に対応した円形開口が形成され、ただし、主断熱部材５１、５２の円形開口の直径は、天井板１００に形成された円形開口３３の直径よりも大きい。主断熱部材５１、５２の円形開口の内周面と、照明器具３０１との間には空間（隙間）９５が形成され、主断熱部材５１、５２は照明器具３０１と接触していない。 The main heat insulating members 51 and 52 are also formed with circular openings corresponding to the circular openings 33 of the ceiling plate 100. However, the diameter of the circular openings of the main heat insulating members 51 and 52 is the diameter of the circular openings 33 formed in the ceiling plate 100. Larger than the diameter. A space (gap) 95 is formed between the inner peripheral surface of the circular opening of the main heat insulating members 51 and 52 and the luminaire 301, and the main heat insulating members 51 and 52 are not in contact with the luminaire 301.

主断熱部材５１、５２が、構造物（照明器具３０１）を避けるように配置されている。逆に言えば、熱源となる照明器具３０１を、主断熱部材５１、５２が貼られていない部分（空間９５）の近傍に配置している。ダウンライト等の照明器具３０１は発熱源となるため、当該熱量を特に断熱性能の弱い部分（断熱部材がカバーしていない領域）に近接するように配置することで、浴室使用時の断熱性能を向上させることができる。 The main heat insulating members 51 and 52 are arranged so as to avoid the structure (lighting fixture 301). Conversely, the lighting fixture 301, which is a heat source, is arranged in the vicinity of the portion (space 95) where the main heat insulating members 51 and 52 are not attached. Since the lighting fixture 301 such as a downlight is a heat source, the heat insulation performance when using the bathroom can be improved by arranging the amount of heat so as to be close to the part where the heat insulation performance is particularly weak (the area not covered by the heat insulation member). Can be improved.

以上説明した実施形態の浴室によれば、天井板１００の裏面の面積よりも小さく、かつ、形状が互いに異なる、複数の断熱部材（主断熱部材および補助断熱部材）を重ねることにより、立体的な連続被覆面（図２（ｂ）、図４（ａ）、図４（ｂ）において模式的に破線で表す）が形成されている。その立体的な連続被覆面によって、天井板１００の裏面における開口形成領域を除く全域が覆われている。 According to the bathroom of the embodiment described above, by stacking a plurality of heat insulating members (main heat insulating member and auxiliary heat insulating member) which are smaller than the area of the back surface of the ceiling plate 100 and have different shapes from each other, they are three-dimensional. A continuous covering surface (schematically represented by a broken line in FIGS. 2 (b), 4 (a), and 4 (b)) is formed. The three-dimensional continuous covering surface covers the entire area of the back surface of the ceiling plate 100 except for the opening forming region.

さらに、図２（ｂ）に示される、補強板４１および連結材４３、４４の配置領域における主断熱部材５１、５２および補助断熱部材６１で囲まれた空間９０の側面（端部）には、図２（ａ）に示す側面補助断熱部材６４、６５が貼り付けられ、その空間９０の断熱性を高めている。 Further, on the side surface (end) of the space 90 surrounded by the main heat insulating members 51, 52 and the auxiliary heat insulating member 61 in the arrangement region of the reinforcing plate 41 and the connecting members 43, 44, as shown in FIG. 2 (b). Side auxiliary heat insulating members 64 and 65 shown in FIG. 2A are attached to enhance the heat insulating property of the space 90.

上述のように結露水の発生に起因して繁殖する浴室天井のカビの抑制対策としては、浴室天面を断熱材で完全に被覆することが安価でかつ効果的である。しかし、断熱材を施工現場で切り出して貼り付ける現状の施工方法においては、下記の理由から天面全体を完全に被覆することは従来困難であった。 As described above, as a measure for controlling mold on the bathroom ceiling that propagates due to the generation of condensed water, it is inexpensive and effective to completely cover the top surface of the bathroom with a heat insulating material. However, in the current construction method in which the heat insulating material is cut out and pasted at the construction site, it has been difficult in the past to completely cover the entire top surface for the following reasons.

すなわち、（１）天面化粧鋼板に換気口、点検口、補強木、分割部連結材等の構造物が配置されるため、隙間が生じる要因がある点、（２）断熱材として用いる発泡スチロールの公差（寸法公差）が１ｍｍ程度存在するため、確実に隙間を除去することができない点、（３）天面裏側（奥側）には排気ダクト等の構造物が配置されているため、施工時に隙間を埋めることは困難であり、専用工具を用いた場合にはコスト増となる点、（４）施工時の現場での発泡スチロールの切り貼りでは天面の被覆精度を求めることが難しく、また発泡スチロール粉が飛散し清掃を困難にする点、等の課題があった。 That is, (1) there is a factor that a gap is generated because a structure such as a ventilation port, an inspection port, a reinforcing tree, and a connecting material for a split portion is arranged on the top decorative steel plate, and (2) Styrofoam used as a heat insulating material. Since there is a tolerance (dimensional tolerance) of about 1 mm, it is not possible to remove the gap reliably. (3) Since structures such as exhaust ducts are placed on the back side (back side) of the top surface, during construction It is difficult to fill the gap, and the cost will increase if a special tool is used. (4) It is difficult to obtain the coating accuracy of the top surface by cutting and pasting Styrofoam at the site during construction, and Styrofoam powder. There was a problem that it was scattered and made cleaning difficult.

一方で、断熱材の設置に替えて又は同時に、ヒータや浴室乾燥機、天井裏加熱流路等の加熱機構を用いて天面を加熱することで結露水の発生を抑制することは可能であるが、構造の複雑化に加え部品コストやランニングコストの増大を招き、実用として現実的ではなかった。 On the other hand, it is possible to suppress the generation of condensed water by heating the top surface using a heating mechanism such as a heater, a bathroom dryer, or an attic heating flow path instead of or at the same time as installing a heat insulating material. However, in addition to the complicated structure, the cost of parts and running cost increased, which was not practical.

本発明の実施形態によれば、断熱部材の公差や天井板裏面に構造物がある場合であっても、複数の断熱部材を用いて立体的に断熱部材を配置するため天井板裏面を全体的に被覆することができるため、簡易構造且つ低コストで天井カビ対策を実現することができる。 According to the embodiment of the present invention, even if there is a tolerance of the heat insulating member or a structure on the back surface of the ceiling plate, the back surface of the ceiling plate is entirely arranged in order to arrange the heat insulating member three-dimensionally using a plurality of heat insulating members. Since it can be coated on the ceiling, it is possible to realize measures against ceiling mold with a simple structure and low cost.

複数の断熱部材を用いて天井全域を覆う立体的な連続被覆面を形成するに際し、天井板の裏面における構造体非形成領域に直接貼りつける主断熱部材と、構造体上方を覆って部分被覆する補助断熱部材の二層構造とすることで、簡易に立体被覆面を形成することができる。 When forming a three-dimensional continuous covering surface that covers the entire ceiling using a plurality of heat insulating members, the main heat insulating member that is directly attached to the non-structured region on the back surface of the ceiling plate and the upper part of the structure are partially covered. By adopting a two-layer structure of the auxiliary heat insulating member, a three-dimensional covering surface can be easily formed.

天井板裏面に設けられた構造物の断熱部材による被覆において、構造物の周囲に隙間ができるように主断熱部材および補助断熱部材で被覆することにより、断熱部材の公差や配置バラツキを吸収するとともに、上記隙間を空気断熱層として利用することができる。 In the coating with the heat insulating member of the structure provided on the back surface of the ceiling plate, by covering with the main heat insulating member and the auxiliary heat insulating member so as to create a gap around the structure, the tolerance and arrangement variation of the heat insulating member can be absorbed. , The above gap can be used as an air insulation layer.

二層目の補助断熱部材を薄くすることで、天井裏の狭空間の設置制約や作業困難性を低減することができる。 By thinning the auxiliary heat insulating member of the second layer, it is possible to reduce installation restrictions and work difficulty in a narrow space behind the ceiling.

二枚の天井板を現場で連結して設置する場合、連結部を予め断熱被覆することはできない。本実施形態では、二枚の天井板を現場で連結した後に、点検口を通じた作業により補助断熱部材を配置することが可能なため、現場での高い断熱構造を形成することができる。 When two ceiling boards are connected and installed at the site, the connecting portion cannot be heat-insulated in advance. In the present embodiment, after connecting the two ceiling boards at the site, it is possible to arrange the auxiliary heat insulating member by the work through the inspection port, so that a high heat insulating structure at the site can be formed.

補助断熱部材として、薄くても十分な断熱性能をもつ熱可塑性樹脂系の発泡体を用いることで、低コストで作業性の高い立体的断熱被覆を実現することができる。 By using a thermoplastic resin-based foam having sufficient heat insulating performance even if it is thin as an auxiliary heat insulating member, it is possible to realize a three-dimensional heat insulating coating with high workability at low cost.

天井板に直接貼り付ける主断熱部材の貼り付けに際し、天井板の端部（辺）にそろえて主断熱部材を貼ることで隙間を極力排除し、断熱性能を向上させることができる。 When the main heat insulating member to be directly attached to the ceiling plate is attached, the gap can be eliminated as much as possible and the heat insulating performance can be improved by attaching the main heat insulating member so as to be aligned with the end (side) of the ceiling plate.

図５に示すように、主断熱部材５１、５２の端部が当接するように天井廻し縁７０を構成することで、天井板１００に対して主断熱部材５１、５２の端部を揃えること（位置合わせ）が容易となり、組立て作業性を向上させることができる。 As shown in FIG. 5, the ceiling peripheral edges 70 are configured so that the ends of the main heat insulating members 51 and 52 are in contact with each other, so that the ends of the main heat insulating members 51 and 52 are aligned with the ceiling plate 100 ( Alignment) becomes easy, and assembly workability can be improved.

また、天井廻し縁７０を鋼板等の金属よりも熱伝導率が低い例えば樹脂材料とすることで、天井裏面側の冷気が天井廻し縁７０を伝って天井板１００の表面（浴室内側の面）側に熱伝達することを阻止し、天井の断熱性能を担保することができる。 Further, by using, for example, a resin material having a lower thermal conductivity than a metal such as a steel plate, the cold air on the back side of the ceiling is transmitted through the ceiling surrounding edge 70 to the surface of the ceiling plate 100 (the surface inside the bathroom). It is possible to prevent heat transfer to the side and ensure the heat insulation performance of the ceiling.

点検口３２の近傍に補助断熱部材を配置する構成とすることで、天井板１００が側壁５４０に載置された状態で、作業者が点検口３２から補助断熱部材を天井板１００の裏面側に配置することができるため、組み立て時や補修時等の作業性が向上する。 By arranging the auxiliary heat insulating member in the vicinity of the inspection port 32, the operator can place the auxiliary heat insulating member from the inspection port 32 on the back surface side of the ceiling plate 100 while the ceiling plate 100 is placed on the side wall 540. Since it can be arranged, workability during assembly and repair is improved.

図４（ｃ）は、図４（ａ）と同様の断面部分のさらに他の例を示す模式断面図である。 FIG. 4 (c) is a schematic cross-sectional view showing still another example of the cross-sectional portion similar to that of FIG. 4 (a).

この図４（ｃ）に示す例では、点検口蓋３５上の主断熱部材５３と、天井板２０上の主断熱部材５２との間の隙間９３に、補助断熱部材６７が設けられている。補助断熱部材６７は、天井板２０および主断熱部材５２に貼り付けられている。 In the example shown in FIG. 4C, the auxiliary heat insulating member 67 is provided in the gap 93 between the main heat insulating member 53 on the inspection palate 35 and the main heat insulating member 52 on the ceiling plate 20. The auxiliary heat insulating member 67 is attached to the ceiling plate 20 and the main heat insulating member 52.

補助断熱部材６７は、主断熱部材５２と主断熱部材５３との間の隙間９３の領域において天井板２０の裏面を部分的に被覆している。点検口蓋３５の外周側のフランジ部と、天井板２０の裏面との間にも補助断熱部材６７は設けられているが、補助断熱部材６７は、低反発であり、点検口蓋３５の外周側のフランジ部と、天井板２０の裏面との間で押しつぶされている。同じ力が加わった場合、低反発の補助断熱部材６７は、他の補助断熱部材および主断熱部材よりも大きくつぶれる。 The auxiliary heat insulating member 67 partially covers the back surface of the ceiling plate 20 in the region of the gap 93 between the main heat insulating member 52 and the main heat insulating member 53. An auxiliary heat insulating member 67 is also provided between the flange portion on the outer peripheral side of the inspection palate 35 and the back surface of the ceiling plate 20, but the auxiliary heat insulating member 67 has low resilience and is on the outer peripheral side of the inspection palate 35. It is crushed between the flange portion and the back surface of the ceiling plate 20. When the same force is applied, the low-resilience auxiliary heat insulating member 67 collapses more than the other auxiliary heat insulating members and the main heat insulating member.

以上、具体例を参照しつつ本発明の実施形態について説明した。しかし、本発明は、それらに限定されるものではなく、本発明の技術的思想に基づいて種々の変形が可能である。 The embodiments of the present invention have been described above with reference to specific examples. However, the present invention is not limited thereto, and various modifications can be made based on the technical idea of the present invention.

１０…第１の天井板、２０…第２の天井板、３５…点検口蓋、４１，４２…補強板、４３，４４…連結材、５１，５２，５３，５４…主断熱部材、６１，６２，６３，６４，６５，６６，６７…補助断熱部材、７０…天井廻し縁、１００…天井板、５００…浴室、５４０，５４１，５４２，５４３，５４４…側壁 10 ... 1st ceiling plate, 20 ... 2nd ceiling plate, 35 ... Inspection palate, 41, 42 ... Reinforcing plate, 43, 44 ... Connecting material, 51, 52, 53, 54 ... Main heat insulating member, 61, 62 , 63, 64, 65, 66, 67 ... Auxiliary heat insulating member, 70 ... Ceiling peripheral edge, 100 ... Ceiling board, 500 ... Bathroom, 540,541,542,543,544 ... Side wall

Claims

A bathroom in which the ceiling of a bathroom covered with side walls on all sides is constructed using rectangular ceiling boards.
The ceiling board is provided with one or more openings or structures.
The entire back surface of the ceiling plate is covered by a continuous covering surface formed by stacking a plurality of heat insulating members, which are smaller than the area of the ceiling plate and have different shapes from each other .
The plurality of heat insulating members
The main heat insulating member directly attached to the area where the opening of the ceiling board or the structure is not provided, and
It has an auxiliary heat insulating member that is attached to the main heat insulating member and partially covers the ceiling board.
The bathroom is characterized in that the auxiliary heat insulating member is provided so as to cover a gap between the main heat insulating members.

The auxiliary thermal insulation member, and covers the upper side of the structure, bath of claim 1, wherein the said top plate are partially covered.

The bathroom according to claim 2, wherein a space is provided between the heat insulating surface formed by the main heat insulating member and the auxiliary heat insulating member and the structure.

The bathroom according to claim 3, wherein the auxiliary heat insulating member is thinner than the main heat insulating member.

The ceiling plate is formed by connecting the first ceiling plate and the second ceiling plate.
The bathroom according to claim 4, wherein the structure is a connecting material for connecting the first ceiling plate and the second ceiling plate.

The bathroom according to claim 5, wherein the auxiliary heat insulating member is a thermoplastic resin-based foam.

The bathroom according to claim 5, wherein the main heat insulating member is arranged on at least three sides of the rectangular ceiling plate so that the ends are substantially aligned.

The four sides of the ceiling plate are joined to the side wall by a fitted ceiling peripheral edge.
The bathroom according to claim 7, wherein the main heat insulating member has a rectangular shape, and at least one side thereof is in contact with the ceiling peripheral edge.

The bathroom according to claim 8, wherein the ceiling peripheral edge is made of a material having a thermal conductivity lower than that of metal.

The bathroom according to claim 5, wherein the auxiliary heat insulating member is arranged only in the vicinity of an inspection port formed by the opening provided in the ceiling plate.

It has a lighting fixture that illuminates the inside of the bathroom.
The bathroom according to claim 3, wherein the lighting fixture is provided in the vicinity of the space.