JP2008025123A - Flooring having waterproof function - Google Patents

Flooring having waterproof function Download PDF

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JP2008025123A
JP2008025123A JP2006196071A JP2006196071A JP2008025123A JP 2008025123 A JP2008025123 A JP 2008025123A JP 2006196071 A JP2006196071 A JP 2006196071A JP 2006196071 A JP2006196071 A JP 2006196071A JP 2008025123 A JP2008025123 A JP 2008025123A
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waterproof pan
floor
waterproof
outer peripheral
expansion
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JP4961871B2 (en
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Toshimi Kitakado
俊実 北角
Yutaka Kasai
裕 葛西
Tsukasa Shigesumi
司 重住
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Toto Ltd
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Toto Ltd
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a flooring having waterproof function having excellent dimensional stability even if a material with a considerably large coefficient of linear expansion is used. <P>SOLUTION: This flooring comprises a waterproof pan having an outer peripheral part on which the wall panel of a plumbing equipment compartment is placed and an extension allowed part formed on the inside of the outer peripheral part and extensible in the planar direction and a support body to which the outer peripheral part of the waterproof pan is secured and supporting the extension allowed part of the waterproof pan from the underside. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、例えば、浴室、シャワー室、トイレなどの衛生設備室に使用される防水機能を備えた床に関する。   The present invention relates to a floor having a waterproof function used in a sanitary equipment room such as a bathroom, a shower room, and a toilet.

例えば浴槽と洗い場とを１つのユニットとして構成したユニットバスなどの浴室の床は、一般に、ＦＲＰ（Fiber Reinforced Plastic）が用いられている。これは、ＦＲＰが、浴室の床に求められる強度、防水性、成形性、意匠性、コストなど、様々な要件をバランスよく満たしているためであり、ユニットバス誕生から現在までの長い間、中心的な素材となっている。特に、近年では、生産性向上とコスト低減を図るため、シート状に予め加工したＦＲＰ（ＳＭＣ：Sheet Molding Compound）を用い、それをホットプレスすることで成型した「ＦＲＰモノコック構造」が採用されている。   For example, FRP (Fiber Reinforced Plastic) is generally used for a bathroom floor such as a unit bath in which a bathtub and a washing place are configured as one unit. This is because FRP satisfies various requirements such as strength, waterproofness, formability, designability, cost, etc. required for bathroom floors in a well-balanced manner. Material. In particular, in recent years, in order to improve productivity and reduce costs, FRP (SMC: Sheet Molding Compound) pre-processed into a sheet shape is used, and the “FRP monocoque structure” molded by hot pressing it has been adopted. Yes.

このように、物性的には浴室など水周りに最適な素材であるＦＲＰではあるが、熱硬化性の樹脂が用いられるため、再度溶解して成型し直すなどの単純なマテリアルリサイクルは不可能で、また材料の生産工程上、スチレンなどの揮発性有機化合物の含有が不可避であるため、近年の循環型社会形成や環境配慮の気運の高まりの中、その使用に対しての風当たりが強くなってきている。   In this way, although it is FRP that is the most suitable material around the water, such as in the bathroom, it is impossible to perform simple material recycling such as melting and re-molding because thermosetting resin is used. In addition, the inclusion of volatile organic compounds such as styrene is unavoidable in the production process of materials, and as a result of the formation of a recycling-oriented society and the increase in environmental consideration in recent years, there has been a strong wind for its use. ing.

このような背景から、比較的リサイクルしやすくコストも安価なポリプロピレン、ポリエチレンなどの汎用熱可塑性樹脂をＦＲＰの代替材として浴室の床に採用することも提案されている。   Against this background, it has also been proposed to employ general-purpose thermoplastic resins such as polypropylene and polyethylene, which are relatively easy to recycle and inexpensive, as an alternative to FRP for bathroom floors.

ポリプロピレン、ポリエチレンなどの熱可塑性の汎用樹脂は、コストや環境面ではＦＲＰよりも有利であるが、線膨張係数が大きいため、浴室の環境温度の変化や製造時・保管時等の温度環境のばらつきによって、大きく寸法が変化してしまい、反りや変形が起きたり、組み立てに必要な精度が得られなかったりする不具合が発生しやすい。   Thermoplastic general-purpose resins such as polypropylene and polyethylene are more advantageous than FRP in terms of cost and environment, but because of their large linear expansion coefficient, changes in the environment temperature of the bathroom and variations in the temperature environment during manufacturing and storage As a result, the dimensions are greatly changed, and there is a tendency that warpage and deformation occur, and the accuracy required for assembly cannot be obtained.

例えば、ポリプロピレン、ポリエチレンなどの汎用熱可塑性樹脂の線膨張係数は、ＦＲＰの５倍程度である。例えば、温度変化範囲が５０℃の環境下で、１辺が１６００ｍｍの長さを有する床を考えた場合、計算上、ＦＲＰでは１．６ｍｍの変形で済むところ、汎用熱可塑性樹脂では８ｍｍの変形となる。ユニットバスの床には浴室内寸を規定させる機能もあるため、８ｍｍの変形は許容しがたく、例えば防水パン上に載置される壁パネル間に隙間が生じるなどの不具合が生じる可能性がある。   For example, the linear expansion coefficient of general-purpose thermoplastic resins such as polypropylene and polyethylene is about five times that of FRP. For example, when considering a floor having a length of 1600 mm on one side in an environment where the temperature change range is 50 ° C., the calculation requires only 1.6 mm for FRP, but 8 mm for general-purpose thermoplastic resin. It becomes. Since the floor of the unit bath also has a function to regulate the size of the bathroom, deformation of 8 mm is unacceptable, and there is a possibility that a defect such as a gap is generated between wall panels placed on the waterproof pan, for example. is there.

素材そのものの線膨張係数を抑えるため樹脂中にガラス繊維等を混ぜて熱可塑性樹脂をベースにしたＦＲＰ化とする改善案も考えられるが、材料単価が高くなってしまうため、汎用樹脂を使用することで得られるせっかくの価格競争力が低下してしまう。また、ガラス繊維等を混入した複合材料はリサイクル性も大きく低下する。   In order to suppress the linear expansion coefficient of the material itself, there may be an improvement plan to mix FRP based on a thermoplastic resin by mixing glass fiber or the like in the resin, but use a general-purpose resin because the unit price of the material will increase. This will reduce the price competitiveness gained. In addition, the recyclability of a composite material mixed with glass fiber or the like is greatly reduced.

また、熱可塑性樹脂からなる基材の裏面に、発泡樹脂、金属材、木質材のいずれかで構成される別部材の補強材を付着形成したり（特許文献１参照）、補強材を樹脂中に一体的にインサート成型するなどして、成型品を熱変形しにくくすることも考えられるが、通常、樹脂材の線膨張による寸法変化の力は強大であるため強固な補強が必要となりコスト高をまねき、また、異部材を熱可塑性樹脂に組み込むとリサイクルが困難になる。
特開２００１−２４８１９８号公報 Further, a reinforcing material of another member composed of any of foamed resin, metal material, and wood material is attached to the back surface of the base material made of thermoplastic resin (see Patent Document 1), or the reinforcing material is contained in the resin. It may be possible to make the molded product difficult to thermally deform by, for example, insert molding integrally, but usually the force of dimensional change due to linear expansion of the resin material is strong, so strong reinforcement is necessary and high cost In addition, if a different member is incorporated into the thermoplastic resin, recycling becomes difficult.
JP 2001-248198 A

本発明は、線膨張係数の比較的大きな素材を用いても良好な寸法安定性が得られる防水機能を有する床を提供する。   The present invention provides a floor having a waterproof function capable of obtaining good dimensional stability even when a material having a relatively large linear expansion coefficient is used.

本発明の一態様によれば、衛生設備室の壁パネルが載置される外周部と、前記外周部より内側に設けられ面方向に伸縮可能な伸縮許容部と、を有する防水パンと、前記外周部が固定されると共に、前記伸縮許容部を下から支える支持体と、を備えたことを特徴とする防水機能を有する床が提供される。   According to one aspect of the present invention, a waterproof pan having an outer peripheral portion on which a wall panel of a sanitary equipment room is placed, and an expansion / contraction permission portion that is provided on the inner side of the outer peripheral portion and can be expanded and contracted in a surface direction, There is provided a floor having a waterproof function, characterized in that an outer peripheral portion is fixed and a support body that supports the expansion / contraction allowance portion from below.

本発明によれば、線膨張係数の比較的大きな素材を用いても良好な寸法安定性が得られる防水機能を有する床が提供される。   ADVANTAGE OF THE INVENTION According to this invention, the floor | bed which has a waterproof function in which favorable dimensional stability is acquired even if it uses the raw material with a comparatively large linear expansion coefficient is provided.

以下、図面を参照し、本発明の実施形態について説明する。   Hereinafter, embodiments of the present invention will be described with reference to the drawings.

図１は、本発明の第１の実施形態に係る防水機能を備えた床の分解斜視図である。
図２は、同第１の実施形態に係る床の要部断面構造を表す模式図である。 FIG. 1 is an exploded perspective view of a floor having a waterproof function according to the first embodiment of the present invention.
FIG. 2 is a schematic diagram illustrating a cross-sectional structure of a main part of the floor according to the first embodiment.

本実施形態では、例えば、浴室における洗い場の床を例に挙げて説明する。本実施形態に係る床は、主として、支持体１１と、防水パン１２とを備える。   In the present embodiment, for example, a floor in a bathroom in a bathroom will be described as an example. The floor according to the present embodiment mainly includes a support 11 and a waterproof pan 12.

支持体１１は、支持脚１４（図２に図示）を介して、浴室が設置される建物床上に据え付けられる。支持体１１は、例えば、鋼材からなる四角い外枠２１と、同じく鋼材からなる角材を縦横に組み合わせた内枠２２と、を組み合わせて構成される。   The support 11 is installed on a building floor where a bathroom is installed via support legs 14 (illustrated in FIG. 2). The support 11 is configured by combining, for example, a rectangular outer frame 21 made of steel and an inner frame 22 in which squares made of steel are combined vertically and horizontally.

支持体１１の上には、防水パン１２が載置される。防水パン１２は、浴室外部に湯水を漏出させない防水性を有する。防水パン１２は、浅底の器状を呈し、その底面部の外周部２４には、浴室の壁を構成する壁パネル１５（図２において２点鎖線で図示）が載置されると共に支持体１１の外枠２１に固定される。   A waterproof pan 12 is placed on the support 11. The waterproof pan 12 has a waterproof property that prevents hot water from leaking out of the bathroom. The waterproof pan 12 has a shallow container shape, and a wall panel 15 (illustrated by a two-dot chain line in FIG. 2) is placed on the outer peripheral portion 24 of the bottom surface of the waterproof pan 12 and a support body. 11 to the outer frame 21.

防水パン１２において、外周部２４より内側には、面方向に伸縮可能な伸縮許容部が設けられている。本実施形態では、伸縮許容部は、防水パン１２の表面及び裏面に形成されたスリット２６ａ、２６ｂ、２８によって構成される。   In the waterproof pan 12, an expansion / contraction permission portion that can expand and contract in the surface direction is provided inside the outer peripheral portion 24. In the present embodiment, the expansion / contraction allowance portion is configured by slits 26 a, 26 b, 28 formed on the front and back surfaces of the waterproof pan 12.

防水パン１２の表面には、図１に表されるように、防水パン１２の長手方向に延在する２本のスリット２６ａ、および防水パン１２の短手方向に延在する２本のスリット２６ｂが形成されている。各々のスリット２６ａ、２６ｂはいずれも途中で途切れずに各々の延在方向に連続して形成されている。   As shown in FIG. 1, two slits 26 a extending in the longitudinal direction of the waterproof pan 12 and two slits 26 b extending in the short direction of the waterproof pan 12 are formed on the surface of the waterproof pan 12. Is formed. Each of the slits 26a and 26b is formed continuously in the extending direction without being interrupted.

防水パン１２の裏面には、表面側の各々のスリット２６ａ、２６ｂを挟んで位置し、それら各々のスリット２６ａ、２６ｂに対して平行に延在するスリット２８（図２に図示）が形成されている。なお、図２に図示される断面には表されていないが、表面側で短手方向に延在するスリット２６ｂを挟む位置にもそのスリット２６ｂに対して平行に延在するスリット２８が形成されている。防水パン１２の裏面に形成されたスリット２８も途中で途切れずに各々の延在方向に連続して形成されている。   A slit 28 (shown in FIG. 2) is formed on the back surface of the waterproof pan 12 with the slits 26a and 26b on the front surface side interposed therebetween and extending in parallel to the slits 26a and 26b. Yes. Although not shown in the cross section shown in FIG. 2, a slit 28 extending in parallel to the slit 26b is formed at a position sandwiching the slit 26b extending in the short direction on the surface side. ing. The slits 28 formed on the back surface of the waterproof pan 12 are also formed continuously in the extending direction without being interrupted.

すなわち、本実施形態では、防水パン１２の表裏に互い違いに形成されたスリット２６ａ、２６ｂ、２８によってアコーディオン（蛇腹）形状の伸縮許容部が形成されている。なお、防水パン１２の裏面に形成された１本のスリットを挟むように、防水パン１２の表面に２本のスリットを形成することでアコーディオン形状の伸縮許容部を構成してもよい。また、１箇所の伸縮許容部につき、スリットは３本に限らず、４本以上であってもよく、さらには、防水パン１２の表裏にそれぞれ１本ずつ互い違いに形成した２本のスリットから伸縮許容部が構成されてもよい。   That is, in this embodiment, the accordion-shaped expansion / contraction allowance portion is formed by the slits 26 a, 26 b, 28 formed alternately on the front and back of the waterproof pan 12. Note that the accordion-shaped expansion / contraction permission portion may be configured by forming two slits on the surface of the waterproof pan 12 so as to sandwich one slit formed on the back surface of the waterproof pan 12. In addition, the number of slits allowed for one expansion / contraction is not limited to three, but may be four or more. Further, the slits can be expanded and contracted from two slits formed alternately on the front and back of the waterproof pan 12. An allowance unit may be configured.

また、防水パン１２の底面部には、図示しない排水トラップに通じる排水用開口２５が形成され、その排水用開口２５を介して排水トラップに導かれた排水は、図示しない排水管を介して浴室外に排水される。   Further, a drainage opening 25 leading to a drain trap (not shown) is formed on the bottom surface of the waterproof pan 12, and the drainage led to the drain trap through the drainage opening 25 passes through a drain pipe (not shown). Drained outside.

浴室の床として必要な強度は、防水パン１２のみによって確保されるのではなく、防水パン１２と、これを支持する支持体１１とによって確保される。支持体１１は、例えば鋼材を縦横に組み合わせて構成され十分な強度を有するため、その分、防水パン１２にはそれほど高い強度は要求されない。このため、例えば、ＦＲＰに比べて強度の弱い汎用樹脂の薄物成型品を防水パン１２として用いることができ、また、補強リブを設けたり、ガラス繊維等の補強材を含浸させるなどの強度を高めるための各種工夫を施さなくてよい。したがって、防水パン１２に要するコストを、ＦＲＰを使った場合に比べて安価にできる。また、熱可塑性樹脂は、不要になったら再度溶かして作り直しが可能であるため、リサイクルしやすい利点がある。   The strength required for the bathroom floor is not ensured by the waterproof pan 12 alone, but by the waterproof pan 12 and the support 11 that supports the waterproof pan 12. For example, the support 11 is configured by combining steel materials vertically and horizontally and has a sufficient strength. Therefore, the waterproof pan 12 is not required to have such a high strength. For this reason, for example, a thin molded article of a general-purpose resin that is weaker than FRP can be used as the waterproof pan 12, and the strength is increased by providing a reinforcing rib or impregnating a reinforcing material such as glass fiber. Therefore, it is not necessary to make various devices for the purpose. Therefore, the cost required for the waterproof pan 12 can be reduced compared with the case where FRP is used. In addition, the thermoplastic resin has an advantage that it can be easily recycled because it can be dissolved and remade when it is no longer needed.

例えば、防水パン１２としては、ポリプロピレン、ポリエチレン、ＡＢＳ、ポリ塩化ビニール等の汎用熱可塑性樹脂の成型品を用いることができる。この成型品は、石油を主原料として新たに生成されたものであってもよいし、廃プラスチック等から再生された再生樹脂であってもよい。再生樹脂を用いた場合は、素材コストのさらなる低減が図れると共に、資源の有効利用にもなる。   For example, as the waterproof pan 12, a molded product of a general-purpose thermoplastic resin such as polypropylene, polyethylene, ABS, or polyvinyl chloride can be used. This molded product may be newly produced from petroleum as a main raw material, or may be a recycled resin regenerated from waste plastic or the like. When the recycled resin is used, the material cost can be further reduced and the resources can be effectively used.

また、防水パン１２の表面自体を、洗い場床の意匠面としてもよいが、例えば安価な再生樹脂を用いた場合には意匠性に優れないことがあり、別途、防水パン１２の表面に表面意匠シート１３を敷設してもよい。表面意匠シート１３は、ポリプロピレンやポリエチレン等の汎用樹脂や、水に強く、意匠性に優れ、浴室床の表面部の機能を満たす仕上げ素材等が用いられる。さらに、表面意匠シート１３を軟質仕上げとしたり、断熱機能を付加するなどによって、ＦＲＰ単一材料によるモノコック構造では実現できない、やわらかくて暖かい質感の床という付加価値を加えることも可能となる。   Further, the surface itself of the waterproof pan 12 may be a design surface of the washing floor, but for example, when inexpensive recycled resin is used, the design may not be excellent, and the surface design is separately provided on the surface of the waterproof pan 12. A sheet 13 may be laid. As the surface design sheet 13, a general-purpose resin such as polypropylene or polyethylene, a finishing material that is strong against water, has excellent design properties, and satisfies the function of the surface portion of the bathroom floor is used. Furthermore, by adding a soft finish to the surface design sheet 13 or adding a heat insulating function, it is possible to add an added value of a soft and warm texture floor that cannot be realized by a monocoque structure using a single FRP material.

防水パン１２の外周部２４は、支持体１１の外枠２１に固定される。図２では、例えばボルト３０を用いて防水パン１２の外周部２４を、支持体１１の外枠２１に固定させた具体例を表しているが、これに限ることはなく、それら両者を、接着剤、両面テープ、樹脂の弾性を利用した係合等によって固定させてもよい。   The outer peripheral portion 24 of the waterproof pan 12 is fixed to the outer frame 21 of the support 11. FIG. 2 shows a specific example in which the outer peripheral portion 24 of the waterproof pan 12 is fixed to the outer frame 21 of the support 11 using, for example, bolts 30, but is not limited thereto, and both of them are bonded. You may fix by the engagement etc. which utilized the elasticity of an agent, a double-sided tape, and resin.

防水パン１２の伸縮許容部は、支持体１１の内枠２２上に載置される。伸縮許容部は、内枠２２には固定されず、内枠２２上で防水パン１２の面方向に伸縮可能となっている。具体的には、長手方向に延在するスリット２６ａ及びそれに平行な裏面側のスリット２８は、内枠２２における長手方向に延在する部分２２ａの上に載置支持され、短手方向に延在するスリット２６ｂ及びそれに平行な裏面側のスリット２８は、内枠２２における短手方向に延在する部分２２ｂの上に載置支持される。   The expansion / contraction allowance part of the waterproof pan 12 is placed on the inner frame 22 of the support 11. The expansion / contraction allowance portion is not fixed to the inner frame 22, and can be expanded and contracted on the inner frame 22 in the surface direction of the waterproof pan 12. Specifically, the slit 26a extending in the longitudinal direction and the slit 28 on the back surface side parallel to the slit 26a are placed and supported on the portion 22a extending in the longitudinal direction of the inner frame 22, and extend in the lateral direction. The slit 26b and the slit 28 on the back side parallel to the slit 26b are placed and supported on a portion 22b extending in the short direction of the inner frame 22.

温度変化により防水パン１２が面方向に線膨張・収縮しようとすると、図３に表すように、伸縮許容部が伸縮する。防水パン１２に線膨張力が作用すると、図３（ａ）に表すように、スリット２６ａ、２６ｂ、２８が広がる方向に伸縮許容部は伸びる。防水パン１２に収縮力が作用すると、図３（ｂ）に表すように、スリット２６ａ、２６ｂ、２８が狭くなる方向に伸縮許容部は縮む。   When the waterproof pan 12 tries to linearly expand / contract in the surface direction due to a temperature change, the expansion / contraction allowance part expands and contracts as shown in FIG. When a linear expansion force acts on the waterproof pan 12, as shown in FIG. 3A, the expansion / contraction allowance portion extends in the direction in which the slits 26a, 26b, and 28 expand. When the contraction force acts on the waterproof pan 12, as shown in FIG. 3B, the expansion / contraction allowance portion contracts in the direction in which the slits 26a, 26b, and 28 are narrowed.

防水パン１２の外周部２４は、温度変化による寸法変化の小さい例えば鋼材からなる支持体外枠２１に固定され、変形が制限されている。そして、その外周部２４よりも内側に、温度変化を受けたときに伸縮しやすい部分（伸縮許容部）を設けることで、防水パン１２が温度変化環境下で膨張・収縮しようとしたときに、伸縮許容部が伸縮してくれることで、支持体外枠２１に対して簡易的に拘束された外周部２４には、温度変化による変形の影響が及ばないようにした。   The outer peripheral portion 24 of the waterproof pan 12 is fixed to a support outer frame 21 made of, for example, a steel material whose dimensional change due to temperature change is small, and deformation is limited. And, when the waterproof pan 12 tries to expand and contract in a temperature change environment by providing a portion that easily expands and contracts when subjected to temperature change (expansion / contraction allowance portion) inside the outer peripheral portion 24, The expansion / contraction allowance part expands and contracts, so that the outer peripheral part 24 that is simply restrained with respect to the support outer frame 21 is not affected by deformation due to temperature change.

防水パン１２の外周部２４は、浴室の内寸など基準となる寸法を規定する壁パネル１５が載置される部分であり、その部分が変形せず寸法が安定しさえすれば、内側の部分が多少伸縮しても、部材間に隙間が形成される、過大な力がかかるなどの不具合が生じることがない。   The outer peripheral part 24 of the waterproof pan 12 is a part on which the wall panel 15 that defines a standard dimension such as the inner dimension of the bathroom is placed. If the part is not deformed and the dimension is stabilized, the inner part is provided. Even if it expands and contracts to some extent, there will be no inconveniences such as formation of a gap between members and application of excessive force.

本実施形態の構成を採用することで、ＦＲＰより線膨張係数が大きく寸法安定性に劣る例えば汎用熱可塑性樹脂を防水パン１２の素材として使用した場合でも、温度変化による寸法変化を起因とした不具合が起きない。よって、安価でリサイクル性に優れた材料から防水パン１２を構成することができる。   By adopting the configuration of this embodiment, the linear expansion coefficient is larger than that of FRP and the dimensional stability is inferior, for example, even when a general-purpose thermoplastic resin is used as the material of the waterproof pan 12, a problem caused by a dimensional change due to a temperature change Does not happen. Therefore, the waterproof pan 12 can be made of a material that is inexpensive and excellent in recyclability.

また、通常、樹脂材の線膨張による寸法変化の力は強大で、前述した伸縮許容部を設けずに、防水パンを強制的に拘束させることだけで変形防止を図ろうとする場合には、かなり強固に防水パンを拘束する必要がある。本実施形態では、前述したように、浴室の寸法には影響を与えない部分に、ある程度の伸縮を許容する構成を設けることで、その伸縮許容部が力の緩衝帯として機能し、外周部２４には過大な力が作用しにくく、そのため、外周部２４のみを例えばボルト固定のように簡易的に拘束するだけでよく、防水パン１２の強固な拘束構造は必要なく、コストが抑えられる。   Also, the force of dimensional change due to the linear expansion of the resin material is usually large, and it is considerably difficult to prevent deformation by forcibly restraining the waterproof pan without providing the above-mentioned expansion / contraction allowance part. It is necessary to bind the waterproof pan firmly. In the present embodiment, as described above, by providing a configuration that allows a certain amount of expansion and contraction in a portion that does not affect the dimensions of the bathroom, the expansion / contraction allowance portion functions as a force buffer band, and the outer peripheral portion 24. For this reason, an excessive force is unlikely to be applied, so that only the outer peripheral portion 24 needs to be constrained simply, for example, by bolting, and a strong constraining structure for the waterproof pan 12 is not required, thereby reducing costs.

防水パン１２内側部分の膨張伸縮に伴う応力が、外周部２４におよびにくくするには、スリット２６ａ、２６ｂ、２８を切れ目なく連続して形成すると効果的である。しかし、スリット２６ａ、２６ｂ、２８が連続して形成されると、そのスリット２６ａ、２６ｂ、２８形成部における曲げ強度が低下して、荷重を支える床として機能しにくくなる。しかし、本実施形態では、伸縮許容部は、支持体内枠２２によって下から支えられているため、その部分で折れ曲がることなく、床として十分な曲げ強度を確保できる。   In order to make it difficult for the stress accompanying expansion and contraction of the inner portion of the waterproof pan 12 to reach the outer peripheral portion 24, it is effective to continuously form the slits 26a, 26b, and 28 without breaks. However, if the slits 26a, 26b, and 28 are continuously formed, the bending strength at the slits 26a, 26b, and 28 forming portions is lowered, and it becomes difficult to function as a floor for supporting a load. However, in this embodiment, since the expansion / contraction allowance portion is supported from below by the support body frame 22, it is possible to ensure sufficient bending strength as a floor without being bent at that portion.

表面意匠シート１３を、防水パン１２の表面に敷設すると、防水パン１２の表面に形成されたスリット２６ａ、２６ｂを隠すことができ、浴室の床としての意匠性を損ねない。また、防水パン１２の表面に形成されるスリットを、排水用開口２５に導くように形成して、排水溝としても機能するようにすれば、表面意匠シート１３を設けなくても、そのスリットに機能美を発現させることができる。   When the surface design sheet 13 is laid on the surface of the waterproof pan 12, the slits 26a and 26b formed on the surface of the waterproof pan 12 can be hidden, and the design as a bathroom floor is not impaired. Moreover, if the slit formed on the surface of the waterproof pan 12 is formed so as to be led to the drainage opening 25 so as to function as a drainage groove, the slit can be formed in the slit without providing the surface design sheet 13. Functional beauty can be expressed.

防水パン１２の表面にスリットを露見させたくない場合には、図４に表すように、防水パン１２の裏面のみにスリット３８を形成してもよい。この場合でも、温度変化により各スリット３８が、広がったり、狭くなったりすることで伸縮許容部として機能する。   If it is not desired to expose the slit on the surface of the waterproof pan 12, the slit 38 may be formed only on the back surface of the waterproof pan 12, as shown in FIG. Even in this case, each slit 38 expands or narrows due to a temperature change, thereby functioning as an expansion / contraction permission portion.

スリットによって伸縮許容部を構成することに限らず、図５に表すように、例えば、防水パン４２の一部を「Ｕ字」状に加工することで伸縮許容部４６を構成してもよい。Ｕ字状部４６ａの両脇は、中空構造の支持体５１の上端部に支持されている。支持体５１の外側上端部５１ａは、防水パン４２の外周部４４に固定され、壁パネル１５が載置され浴室の寸法を規定する外周部４４を拘束している。支持体５１の内側上端部５１ｂは、防水パン４２に固定されず、単に載置支持しているだけである。Ｕ字状部４６ａは、支持体５１の上端に形成された開口を介して支持体５１の中空部内に位置し、拘束されず、変形が許容されている。   As shown in FIG. 5, the expansion allowance portion 46 may be formed by processing a part of the waterproof pan 42 into a “U” shape, for example. Both sides of the U-shaped portion 46a are supported by the upper end portion of the support body 51 having a hollow structure. The outer upper end portion 51a of the support 51 is fixed to the outer peripheral portion 44 of the waterproof pan 42 and restrains the outer peripheral portion 44 on which the wall panel 15 is placed and defines the dimensions of the bathroom. The inner upper end 51b of the support body 51 is not fixed to the waterproof pan 42, but is simply placed and supported. The U-shaped part 46a is located in the hollow part of the support body 51 through an opening formed at the upper end of the support body 51, and is not restrained and is allowed to be deformed.

本具体例においても、防水パン４２が温度変化環境下で膨張・収縮しようとしたときに、Ｕ字状部４６ａが広がったり縮んだりすることで、支持体５１に対して拘束された外周部４４には、温度変化による変形の影響が及ばず、浴室内寸の変動を抑えることができる。   Also in this specific example, when the waterproof pan 42 tries to expand / contract under a temperature change environment, the outer peripheral portion 44 constrained with respect to the support body 51 by the U-shaped portion 46a expanding or contracting. Therefore, the influence of deformation due to temperature change is not affected, and fluctuations in the bathroom dimensions can be suppressed.

［第２の実施形態］
図６は、本発明の第２の実施形態に係る防水機能を備えた床の分解斜視図である。
図７は、同第２の実施形態に係る床の要部断面構造を表す模式図である。 [Second Embodiment]
FIG. 6 is an exploded perspective view of a floor having a waterproof function according to the second embodiment of the present invention.
FIG. 7 is a schematic diagram illustrating a cross-sectional structure of a main part of the floor according to the second embodiment.

本実施形態に係る防水機能を備えた床は、主として、フレーム状架台６０と、支持体６１と、防水パン６２とを備える。   The floor having a waterproof function according to the present embodiment mainly includes a frame-shaped gantry 60, a support body 61, and a waterproof pan 62.

フレーム状架台６０は、支持脚６４を介して、浴室が設置される建物床上に据え付けられる。フレーム状架台６０は、浴室構造体の最下部で、支持体６１、防水パン６２、壁パネル１６、天井パネル（図示せず）等の重みや、床上の人が動くことによる動荷重を受けとめる土台として機能する。したがって、フレーム状架台６０は、十分な強度を有し、例えば、鋼材からなる角材を縦横に組み合わせて構成される。   The frame-like pedestal 60 is installed on a building floor on which a bathroom is installed via support legs 64. The frame-like pedestal 60 is a lowermost part of the bathroom structure, and is a base that receives the weight of the support 61, the waterproof pan 62, the wall panel 16, the ceiling panel (not shown), and the dynamic load caused by the movement of a person on the floor. Function as. Therefore, the frame-shaped gantry 60 has sufficient strength, and is configured by combining square members made of steel, for example, vertically and horizontally.

フレーム状架台６０の上には、例えば、ネジ止めなどにより、支持体６１が固定される。支持体６１は、洗い場床面とほぼ同じ平面寸法を有する板状を呈し、フレーム状架台６０と共に床の機械的強度を高める役割を担うと共に、床面のたわみや曲げに対する面強度（剛性）を高める役割を担う。   On the frame-shaped gantry 60, for example, a support body 61 is fixed by screwing or the like. The support body 61 has a plate shape having substantially the same planar dimensions as the washing floor surface, and plays a role of increasing the mechanical strength of the floor together with the frame-shaped gantry 60, and has a surface strength (rigidity) against the deflection and bending of the floor surface. Play a role to enhance.

支持体６１は、例えば、石膏ボード、木質系ボード、硬質ポリウレタンフォームなどの芯材を薄い２枚の鋼板で挟んだサンドイッチ鋼板等からなる。これら材料は、樹脂に比べて、温度変化による寸法変化が小さく、形状安定性に優れ、組み立てに必要な精度を得ることができる。また、特にサンドイッチ鋼板構造を採用した支持体６１において、硬質ポリウレタンフォームやロックウールボードなどの断熱性に優れた芯材を用いれば、床面を冷めにくくでき、使用者に不快感（冷たい感じ）を与えにくくできる。   The support 61 is made of, for example, a sandwich steel plate in which a core material such as a gypsum board, a wooden board, or a hard polyurethane foam is sandwiched between two thin steel plates. These materials have smaller dimensional changes due to temperature changes than resins, have excellent shape stability, and can obtain the accuracy required for assembly. In particular, in the support 61 adopting a sandwich steel plate structure, if a core material having excellent heat insulation properties such as hard polyurethane foam or rock wool board is used, it is difficult to cool the floor surface, and the user feels uncomfortable (feeling cold). Can be difficult to give.

支持体６１の上には、防水パン６２が載置される。防水パン６２は、浴室外部に湯水を漏出させない防水性を有する。防水パン６２は、浅底の器状を呈し、その外周部６８（図７参照）には、浴室の壁を構成する壁パネル１５が載置されると共に支持体６１に固定される。図７では、例えばボルト３１を用いて防水パン６２の外周部６８を、支持体６１に固定させた具体例を表しているが、これに限ることはなく、それら両者を、接着剤、両面テープ、樹脂の弾性を利用した係合等によって固定させてもよい。   A waterproof pan 62 is placed on the support 61. The waterproof pan 62 has a waterproof property that prevents hot water from leaking out of the bathroom. The waterproof pan 62 has a shallow vessel shape, and a wall panel 15 constituting a bathroom wall is placed on an outer peripheral portion 68 (see FIG. 7) and fixed to the support body 61. Although FIG. 7 shows a specific example in which the outer peripheral portion 68 of the waterproof pan 62 is fixed to the support body 61 using, for example, bolts 31, the present invention is not limited to this. Alternatively, it may be fixed by engagement utilizing the elasticity of the resin.

防水パン６２において、外周部６８より内側には、面方向に伸縮可能な伸縮許容部が設けられている。本実施形態では、伸縮許容部は、防水パン６２の裏面に格子状に形成されたスリット６５によって構成される。各スリット６５は、途中で途切れずに各々の延在方向に連続して形成されている。スリット６５（伸縮許容部）を形成した防水パン６２の内側部分は、支持体６１に固定されずに載置支持され、伸縮許容部は、支持体６１上で面方向に伸縮可能となっている。   In the waterproof pan 62, an expansion / contraction permission portion that can expand and contract in the surface direction is provided inside the outer peripheral portion 68. In the present embodiment, the expansion / contraction permission portion is configured by slits 65 formed in a lattice shape on the back surface of the waterproof pan 62. Each slit 65 is continuously formed in each extending direction without being interrupted. The inner part of the waterproof pan 62 in which the slit 65 (extension allowance portion) is formed is placed and supported without being fixed to the support body 61, and the extension allowance portion can be extended and contracted in the surface direction on the support body 61. .

本実施形態においても、防止パン６２の外周部６８は、温度変化による寸法変化の小さい例えば鋼材等からなる支持体６１に固定され、変形が制限されている。そして、その外周部６８よりも内側に、温度変化を受けたときに伸縮しやすい部分（伸縮許容部）を設けることで、防水パン６２が温度変化環境下で膨張・収縮しようとしたときに、伸縮許容部が伸縮してくれることで、支持体６１に対して簡易的に拘束された外周部６８には、温度変化による変形の影響が及ばないようにした。   Also in the present embodiment, the outer peripheral portion 68 of the prevention pan 62 is fixed to the support body 61 made of, for example, steel or the like whose dimensional change due to temperature change is small, and deformation is limited. Then, by providing a portion that easily expands and contracts when subjected to a temperature change (expansion / contraction allowance) inside the outer peripheral portion 68, when the waterproof pan 62 tries to expand and contract under a temperature change environment, The expansion / contraction allowance portion expands and contracts, so that the outer peripheral portion 68 that is simply restrained with respect to the support 61 is not affected by deformation due to temperature change.

その外周部６８は、浴室の内寸など基準となる寸法を規定する壁パネル１５が載置される部分であり、その部分が変形せず寸法が安定しさえすれば、内側の部分が多少伸縮しても、部材間に隙間が形成される、過大な力がかかるなどの不具合が生じることがない。   The outer peripheral portion 68 is a portion on which the wall panel 15 that defines a reference size such as the inner size of the bathroom is placed. If the portion is not deformed and the size is stabilized, the inner portion is slightly expanded and contracted. Even in this case, there is no problem that a gap is formed between the members or an excessive force is applied.

本実施形態の構成を採用することで、ＦＲＰより線膨張係数が大きく寸法安定性に劣る例えば汎用熱可塑性樹脂を防水パン６２の素材として使用した場合でも、温度変化による寸法変化を起因とした不具合が起きない。よって、安価でリサイクル性に優れた材料から防水パン６２を構成することができる。   By adopting the configuration of the present embodiment, the linear expansion coefficient is larger than FRP and the dimensional stability is inferior, for example, even when a general-purpose thermoplastic resin is used as the material of the waterproof pan 62, a defect caused by a dimensional change due to a temperature change Does not happen. Therefore, the waterproof pan 62 can be made of an inexpensive material with excellent recyclability.

防水パン６２内側部分の膨張伸縮に伴う応力が、外周部６８におよびにくくするには、各スリット６５を切れ目なく連続して形成すると効果的である。しかし、スリット６５が連続して形成されると、そのスリット６５形成部における曲げ強度が低下して、荷重を支える床として機能しにくくなる。しかし、本実施形態では、スリット６５形成部は、支持体６２によって下から支えられているため、その部分で折れ曲がることなく、床として十分な曲げ強度を確保できる。   In order to make it difficult for the stress accompanying expansion and contraction of the inner portion of the waterproof pan 62 to reach the outer peripheral portion 68, it is effective to continuously form the slits 65 without any breaks. However, if the slit 65 is continuously formed, the bending strength at the slit 65 forming portion is lowered, and it becomes difficult to function as a floor for supporting a load. However, in the present embodiment, since the slit 65 forming portion is supported from below by the support body 62, sufficient bending strength as a floor can be ensured without bending at that portion.

浴室洗い場床に要求される強度、防水性、意匠性などの機能を、ＦＲＰ単一材料によるモノコック構造（一体構造）で充足させるのではなく、それら各機能を担う別々の部材を組み合わせることで、全体として強度、防水性、意匠性を充足する構造体としている。各部材は、単一機能だけを充足すればよく、素材選択肢が広がり安価な汎用品を用いることができ、これら安価な汎用品を組み合わせることで、高機能なＦＲＰのモノコック構造に比べて、全体のコストも安価にできる。   Rather than satisfying the monocoque structure (integrated structure) of the FRP single material with functions such as strength, waterproofness, and design required for the bathroom washroom floor, by combining separate members responsible for these functions, The structure as a whole satisfies the strength, waterproofness, and design. Each member only needs to satisfy a single function, and it is possible to use inexpensive general-purpose products with a wide range of material choices. By combining these inexpensive general-purpose products, the overall structure is higher than that of a high-performance FRP monocoque structure. The cost can be reduced.

さらに、本実施形態では、浴室洗い場床に要求される強度は、フレーム状架台６０及び支持体６１が担うので、防水パン６２は、単に防水性だけを考慮して汎用樹脂の薄肉成型品を用いることができ、安価な防水パン６２を提供できる。また、防水パン６２の素材として、熱可塑性樹脂を用いた場合にはリサイクル性も向上し、さらに再生樹脂を用いた場合には材料コストをより低減できる。   Furthermore, in this embodiment, the strength required for the bathroom washroom floor is borne by the frame-like pedestal 60 and the support 61, and therefore, the waterproof pan 62 uses a thin molded product of general-purpose resin simply considering waterproofness. Therefore, an inexpensive waterproof pan 62 can be provided. In addition, when thermoplastic resin is used as the material of the waterproof pan 62, recyclability is also improved, and when recycled resin is used, material costs can be further reduced.

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 to them, and various modifications can be made based on the technical idea of the present invention.

本発明の第１の実施形態に係る防水機能を備えた床の分解斜視図である。It is an exploded perspective view of the floor provided with the waterproof function concerning a 1st embodiment of the present invention. 同第１の実施形態に係る床の要部断面構造を表す模式図である。It is a schematic diagram showing the principal part sectional structure of the floor concerning the 1st embodiment. 第１の実施形態における伸縮許容部の動きを説明するための模式図である。It is a schematic diagram for demonstrating the motion of the expansion-contraction tolerance part in 1st Embodiment. 伸縮許容部の他の具体例を表す模式図である。It is a schematic diagram showing the other specific example of an expansion-contraction permission part. 伸縮許容部のさらに他の具体例を表す模式図である。It is a schematic diagram showing the other specific example of the expansion-contraction permission part. 本発明の第２の実施形態に係る防水機能を備えた床の分解斜視図である。It is a disassembled perspective view of the floor provided with the waterproof function which concerns on the 2nd Embodiment of this invention. 同第２の実施形態に係る床の要部断面構造を表す模式図である。It is a schematic diagram showing the principal part sectional structure of the floor concerning the 2nd embodiment.

符号の説明Explanation of symbols

１１…支持体、１２…防水パン、１３…表面意匠シート、１４…支持脚、１５…壁パネル、２４…外周部、２６ａ，２６ｂ，２８，３８…スリット、４２…防水パン、４４…外周部、４６…伸縮許容部、５１…支持体、６０…フレーム状架台、６１…支持体、６２…防水パン、６５…スリット、６８…外周部   DESCRIPTION OF SYMBOLS 11 ... Support body, 12 ... Waterproof pan, 13 ... Surface design sheet, 14 ... Support leg, 15 ... Wall panel, 24 ... Outer peripheral part, 26a, 26b, 28, 38 ... Slit, 42 ... Waterproof pan, 44 ... Outer peripheral part , 46 ... Expansion / contraction allowance part, 51 ... Support, 60 ... Frame-shaped mount, 61 ... Support, 62 ... Waterproof pan, 65 ... Slit, 68 ... Outer peripheral part

Claims (7)

衛生設備室の壁パネルが載置される外周部と、前記外周部より内側に設けられ面方向に伸縮可能な伸縮許容部と、を有する防水パンと、
前記外周部が固定されると共に、前記伸縮許容部を下から支える支持体と、
を備えたことを特徴とする防水機能を有する床。 A waterproof pan having an outer peripheral portion on which a wall panel of a sanitary equipment room is placed, and an expansion / contraction allowance portion provided inside the outer peripheral portion and capable of expanding and contracting in a surface direction;
The outer peripheral portion is fixed, and a support body that supports the expansion / contraction allowance portion from below,
A floor having a waterproof function. 前記防水パンの表面及び裏面の少なくともいずれかに形成されたスリットによって、前記伸縮許容部が構成されることを特徴とする請求項１記載の防水機能を有する床。   The floor having a waterproof function according to claim 1, wherein the expansion / contraction allowance portion is configured by a slit formed in at least one of a front surface and a back surface of the waterproof pan. 前記スリットが前記防水パンの表面に形成され、且つ前記スリットは、前記防水パンに形成された排水用開口に排水を導く排水溝を兼ねることを特徴とする請求項２記載の防水機能を有する床。   3. The floor having a waterproof function according to claim 2, wherein the slit is formed on a surface of the waterproof pan, and the slit also serves as a drainage groove that guides drainage to a drainage opening formed in the waterproof pan. . 前記伸縮許容部は、アコーディオン形状を呈することを特徴とする請求項１記載の防水機能を有する床。   The floor having a waterproof function according to claim 1, wherein the stretchable portion has an accordion shape. 前記防水パンは、熱可塑性樹脂からなることを特徴とする請求項１〜４のいずれか１つに記載の防水機能を有する床。   The floor having a waterproof function according to any one of claims 1 to 4, wherein the waterproof pan is made of a thermoplastic resin. 前記熱可塑性樹脂は、再生樹脂であることを特徴とする請求項５記載の防水機能を有する床。   The floor having a waterproof function according to claim 5, wherein the thermoplastic resin is a recycled resin. 前記防水パンの表面に敷設された表面意匠シートをさらに備えたことを特徴とする請求項１〜６のいずれか１つに記載の防水機能を有する床。   The floor having a waterproof function according to any one of claims 1 to 6, further comprising a surface design sheet laid on the surface of the waterproof pan.
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KR100926825B1 (en) 2008-04-11 2009-11-13 유희종 Bathroom construction
KR101069563B1 (en) 2009-09-25 2011-10-05 주식회사 한샘 A hybrid type smc water proof floor for unit bath room and construction method thereof
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JP2012193563A (en) * 2011-03-17 2012-10-11 Toto Ltd Bathroom unit
JP2012197621A (en) * 2011-03-22 2012-10-18 Toto Ltd Bathroom unit
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JP2012202105A (en) * 2011-03-25 2012-10-22 Toto Ltd Bathroom unit
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CN107893472A (en) * 2017-09-29 2018-04-10 北京好生活住工科技发展有限公司 Water-proof chassis component
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Publication number Priority date Publication date Assignee Title
KR100926825B1 (en) 2008-04-11 2009-11-13 유희종 Bathroom construction
KR101069563B1 (en) 2009-09-25 2011-10-05 주식회사 한샘 A hybrid type smc water proof floor for unit bath room and construction method thereof
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JP2012193563A (en) * 2011-03-17 2012-10-11 Toto Ltd Bathroom unit
JP2012197621A (en) * 2011-03-22 2012-10-18 Toto Ltd Bathroom unit
JP2012202104A (en) * 2011-03-25 2012-10-22 Toto Ltd Bathroom unit
JP2012202105A (en) * 2011-03-25 2012-10-22 Toto Ltd Bathroom unit
CN107489249A (en) * 2017-08-24 2017-12-19 江苏环亚医用科技集团股份有限公司 Hospitals toilet Waterproof Construction Technique
CN107489249B (en) * 2017-08-24 2020-08-07 江苏环亚医用科技集团股份有限公司 Waterproof construction process for hospital toilet
CN107893472A (en) * 2017-09-29 2018-04-10 北京好生活住工科技发展有限公司 Water-proof chassis component
JP2020100999A (en) * 2018-12-21 2020-07-02 Toto株式会社 Bathroom wash place floor structure
JP7205712B2 (en) 2018-12-21 2023-01-17 Toto株式会社 Bathroom washroom floor structure

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