JP2005220570A - Heating floor structure - Google Patents

Heating floor structure Download PDF

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JP2005220570A
JP2005220570A JP2004028137A JP2004028137A JP2005220570A JP 2005220570 A JP2005220570 A JP 2005220570A JP 2004028137 A JP2004028137 A JP 2004028137A JP 2004028137 A JP2004028137 A JP 2004028137A JP 2005220570 A JP2005220570 A JP 2005220570A
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floor structure
floor
heating
weight
heat
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Inventor
Kazuyuki Kobayashi
和幸 小林
Kayako Hamanaka
香也子 濱中
Kazutoshi Kusakari
和俊 草刈
Tomohiro Mizutani
知裕 水谷
Hiroyuki Inagaki
裕行 稲垣
Haruki Nakatani
晴喜 中谷
Yasusuke Fukumitsu
安祐 福満
Masayoshi Atsumi
匡善 渥美
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Daiken Trade and Industry Co Ltd
Kansai Electric Power Co Inc
Tokyo Electric Power Co Inc
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Daiken Trade and Industry Co Ltd
Kansai Electric Power Co Inc
Tokyo Electric Power Co Inc
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Priority to JP2004028137A priority Critical patent/JP2005220570A/en
Publication of JP2005220570A publication Critical patent/JP2005220570A/en
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a heating floor structure easy in site work, while reducing running cost, without causing a mesh opening and violent behavior. <P>SOLUTION: This heating floor is laminated so as to sandwich a pipe 24 by a base material 21 being a heat insulating material and a heating flooring 30. The heating flooring 30 is composed of a base board 33 being a hard fiber board provided by being adjusted to an average specific gravity of 1.2 to 1.7 by a thermocompression press, by impregnating a resin liquid of a diluted resin rate of 10 to 60% into a semicure mat of a specific gravity of 0.3 to 0.9 provided by applying the thermocompression press to a wet mat provided by combing slurry in a wet state with mineral fiber of 35 to 70 wt.%, an inorganic powdery body of 20 to 55 wt.% and a binder of 5 to 25 wt.% as an essential component. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

本発明は発熱床構造、特に、積層した場合の厚さ寸法が小さい発熱床構造に関する。   The present invention relates to a heat generating floor structure, and more particularly to a heat generating floor structure having a small thickness dimension when laminated.

従来、発熱床構造としては、断熱材と床材とで発熱体を挾持するように積層した発熱床構造がある。例えば、木造住宅における発熱床構造(図6A)や集合住宅の2重床における発熱床構造(図6B)がある。   Conventionally, as the heat generating floor structure, there is a heat generating floor structure in which a heat generating member is sandwiched between a heat insulating material and a floor material. For example, there are a heat generation floor structure (FIG. 6A) in a wooden house and a heat generation floor structure (FIG. 6B) in a double floor of an apartment house.

前者は、大引き1に所定のピッチで根太2を並設し、前記根太2の間に断熱材3を充填するとともに、前記根太2の上に合板4(厚さ12mm)を捨て張りした後、床暖房パネル5(厚さ12mm)および木質系暖房用フローリング6(厚さ6〜12mm)を順次積層した構造を有する。前記床暖房用パネル5内には温水を流通させるためのパイプ7が埋設されている。   In the former, the joists 2 are juxtaposed at a predetermined pitch on the large pull 1, and the heat insulating material 3 is filled between the joists 2, and the plywood 4 (thickness 12 mm) is disposed on the joists 2 The floor heating panel 5 (thickness 12 mm) and the wood heating flooring 6 (thickness 6 to 12 mm) are sequentially laminated. A pipe 7 for circulating hot water is embedded in the floor heating panel 5.

一方、後者は、床下地10に床ボルト11を介して根太12を並設し、前記床ボルト11の間に断熱材13を配置するとともに、前記根太12にパーティクルボードからなる床パネル14(厚さ12〜20mm)を架け渡した後、合板15(厚さ12mm)を捨て張りし、ついで、パイプ16を埋設した床暖房パネル17(厚さ12mm)および木質系暖房用フローリング18(厚さ6〜12mm)を順次積層した構造を有する。そして、前記発熱床構造に使用される木質系暖房用フローリング18としては、例えば、床暖房用防音床材(特許文献1参照)がある。
特開平8−165789号公報
On the other hand, in the latter, a joist 12 is juxtaposed on the floor base 10 via a floor bolt 11, a heat insulating material 13 is disposed between the floor bolt 11, and a floor panel 14 (thickness made of particle board) is formed on the joist 12. 12 to 20 mm), the plywood 15 (thickness 12 mm) is thrown away, then the floor heating panel 17 (thickness 12 mm) in which the pipe 16 is embedded and the wood heating flooring 18 (thickness 6). ˜12 mm). An example of the wood heating flooring 18 used in the heat generating floor structure is a soundproof floor material for floor heating (see Patent Document 1).
JP-A-8-165789

しかしながら、前記床暖房用防音床材は合板を基材とするので、得られる熱伝導性に限界があり、暖房開始から所定の温度に達するまでの立ち上がりが遅いという不具合がある。このような不具合を解消すべく、暖房開始時に高温(75℃〜80℃)の温水を通湯すると、捨て張りした前記合板4,15や前記木質系暖房用フローリング6,18が熱乾燥によって収縮し、暖房用フローリング6,18の継ぎ目に目隙が発生したり、あるいは、床全体が波打つ暴れが生じるおそれがあった。   However, since the soundproof flooring for floor heating uses plywood as a base material, there is a limit to the heat conductivity obtained, and there is a problem that the rise from the start of heating to a predetermined temperature is slow. In order to eliminate such problems, if hot water of high temperature (75 ° C. to 80 ° C.) is passed at the start of heating, the discarded plywood 4 and 15 and the wood heating flooring 6 and 18 contract by heat drying. However, there is a possibility that gaps may be generated at the joints between the heating floorings 6 and 18, or the entire floor may wave.

また、従来の発熱床構造では、暖房開始時に75℃〜80℃まで水を温める必要があるだけでなく、通常の暖房においても温水を55℃〜60℃まで温めないと、床暖房に使用できないので、ランニングコストが高い。   Moreover, in the conventional exothermic floor structure, it is not only necessary to warm water from 75 ° C. to 80 ° C. at the start of heating, but also in normal heating, warm water cannot be used for floor heating unless it is heated from 55 ° C. to 60 ° C. So running costs are high.

さらに、バリアフリーの床暖房とするためには、床暖房パネルを敷設する部屋の床下地を一段低く設定するか、あるいは、床暖房パネルを敷設しない部屋の床下地を一段高くする必要があり、現場施工の際に床下地の高さ調整に手間がかかるという問題点がある。   Furthermore, in order to achieve floor-free floor heating, it is necessary to set the floor base of the room where the floor heating panel is laid down one step lower, or to raise the floor base of the room where no floor heating panel is laid down, There is a problem that it takes time and effort to adjust the height of the floor base during construction on site.

本願発明は、目隙や暴れが生じず、ランニングコストが低いとともに、現場施工が容易な発熱床構造を提供することを目的とする。   It is an object of the present invention to provide a heat generation floor structure that does not cause gaps or rampage, has low running cost, and is easy to construct on site.

課題を解決するための手段および発明の効果Means for Solving the Problems and Effects of the Invention

本発明にかかる発熱床構造は、前記目的を達成すべく、断熱材と床材とで発熱体を挾持するように積層した発熱床構造において、前記床材が、鉱物質繊維35〜70重量%、無機粉状体20〜55重量%、および、結合剤5〜25重量%を必須成分とするスラリーを湿式抄造して得られる湿潤マットに熱圧プレスを施して得られた比重0.3〜0.9のセミキュアマットに、希釈された樹脂率10〜60%の樹脂液を含浸させ、熱圧プレスで平均比重1.2〜1.7に調整して得た硬質繊維板を基板とした構成としてある。なお、前記基板の少なくとも片面に化粧シートを貼着一体化しておいてもよい。   In order to achieve the above object, the heat generating floor structure according to the present invention is a heat generating floor structure in which a heat generating material is sandwiched between a heat insulating material and a floor material, and the floor material comprises 35 to 70% by weight of mineral fibers. The specific gravity obtained by subjecting a wet mat obtained by wet papermaking to a slurry containing 20 to 55% by weight of an inorganic powder and 5 to 25% by weight of a binder as an essential component is 0.3 to A hard fiberboard obtained by impregnating a 0.9 semi-cure mat with a diluted resin solution having a resin ratio of 10 to 60% and adjusting the average specific gravity to 1.2 to 1.7 by a hot press is used as a substrate. It is as a configuration. A decorative sheet may be attached and integrated on at least one side of the substrate.

本発明にかかる発熱床構造によれば、床材として、熱伝導率に優れ、無機板のように優れた熱寸法安定性、耐水性および耐傷性を有するものを使用できる。このため、暖房開始時における立ち上がりが早いだけでなく、目隙や暴れが生ぜず、ランニングコストが低い。また、前記床材は、木質材に近似する耐衝撃性、施工性および切削加工性を備えているので、前述の熱寸法安定性と相俟って従来例よりも薄板状のものを使用できる。このため、バリアフリーとする場合でも、従来例のような床下地の高さ調整が不要となり、現場施工が容易になる。特に、前記基板に化粧シートを貼着一体化しておけば、意匠性が向上し、部屋の色調に合わせた発熱床面を形成できる。   According to the exothermic floor structure according to the present invention, a flooring material having excellent thermal conductivity and excellent thermal dimensional stability, water resistance and scratch resistance, such as an inorganic board, can be used. For this reason, not only the start-up at the start of heating is quick, but also there is no gap or rampage, and the running cost is low. Further, since the flooring material has impact resistance, workability, and machinability that are similar to a wood material, it can be used in the form of a thin plate than the conventional example in combination with the thermal dimensional stability described above. . For this reason, even when it is made barrier-free, it is not necessary to adjust the height of the floor base as in the conventional example, and the construction at the site becomes easy. In particular, if a decorative sheet is attached and integrated on the substrate, the design is improved, and a heat generating floor according to the color tone of the room can be formed.

本実施形態としては、発熱体と床材との間に均熱板を積層しておいてもよく、あるいは、断熱材の下面に合板を積層しておいてもよい。前者によれば、熱の拡散が均一になり、温度ムラがなくなるので、より一層効率的な暖房が可能となる。また、後者によれば、前記合板によって断熱材が支持されるので、選択できる断熱材の範囲が広くなり、設計の自由度が広がる。   In this embodiment, a soaking plate may be laminated between the heating element and the flooring, or a plywood may be laminated on the lower surface of the heat insulating material. According to the former, heat diffusion becomes uniform and temperature unevenness is eliminated, so that more efficient heating is possible. Moreover, according to the latter, since the heat insulating material is supported by the plywood, the range of heat insulating materials that can be selected is widened, and the degree of freedom in design is widened.

他の実施形態として、発熱体は、パイプに暖めた液状熱伝導媒体を充填して流通させるものであってもよく、あるいは、電気発熱体であってもよい。本実施形態によれば、施工条件に合わせて発熱体を選択でき、選択の範囲が広がる。   As another embodiment, the heating element may be one in which a pipe is filled with a warm liquid heat conduction medium for circulation, or may be an electric heating element. According to this embodiment, a heat generating body can be selected according to construction conditions, and the range of selection spreads.

本発明にかかる実施形態としては、鉱物質繊維の部分的代替物として、耐熱性有機繊維0.5〜15重量%を添加してもよい。
本実施形態によれば、鉱物質繊維の部分的代替物として耐熱性有機繊維を添加するので、耐衝撃性においてより一層優れた床材を発熱床構造に使用できる。
In an embodiment according to the present invention, 0.5 to 15% by weight of heat-resistant organic fibers may be added as a partial substitute for mineral fibers.
According to this embodiment, since the heat-resistant organic fiber is added as a partial substitute for the mineral fiber, a floor material that is more excellent in impact resistance can be used in the heat generating floor structure.

他の実施形態としては、スラリー中に顔料を添加して着色してもよく、または、樹脂率10〜60%に希釈された樹脂液に顔料または染料を添加して着色しておいてもよい。
本実施形態によれば、床材の色調を選択して合わせることができる。このため、床材に疑似目地や面取り等の切削加工を施す場合に、表面を淡色に仕上げたいときに下地の色を所望の淡色にできる。この結果、天然木材で床材を製造する場合よりも資材を調達できる範囲が広くなり、資材の安定供給が容易になるので、生産性が向上するという効果がある。
As other embodiments, the slurry may be colored by adding a pigment, or may be colored by adding a pigment or a dye to a resin liquid diluted to a resin ratio of 10 to 60%. .
According to this embodiment, the color tone of the flooring can be selected and matched. For this reason, when the floor material is subjected to a cutting process such as a pseudo joint or chamfering, it is possible to make the background color a desired light color when it is desired to finish the surface light. As a result, the range in which materials can be procured becomes wider than when floor materials are produced from natural wood, and the stable supply of materials is facilitated, thereby improving the productivity.

本発明にかかる実施形態を図1ないし図4の添付図面に従って説明する。
第1実施形態は、図1および図3に示すように、基本的構造は前述の従来例とほぼ同様であり、大引き1に所定のピッチで根太2を並設し、前記根太2の間に断熱材3を充填するとともに、前記根太2の上に合板4(厚さ12mm)を捨て張りした後、床暖房パネル20(厚さ9mm)および木質系暖房用フローリング30(厚さ3mm)を順次積層した構造を有する。
Embodiments according to the present invention will be described with reference to the accompanying drawings of FIGS.
As shown in FIGS. 1 and 3, the basic structure of the first embodiment is substantially the same as that of the above-described conventional example. In addition, the plywood 4 (thickness 12 mm) is thrown over the joists 2 and the floor heating panel 20 (thickness 9 mm) and the wood heating flooring 30 (thickness 3 mm) are attached. It has a stacked structure.

前記床暖房パネル20は、図3Bに示すように、断熱材である基材21の表面に設けた溝22に伝熱材23を介してパイプ24を埋設するとともに、均熱材25で被覆したものである。   As shown in FIG. 3B, the floor heating panel 20 has a pipe 24 embedded in a groove 22 provided on the surface of a base material 21 that is a heat insulating material via a heat transfer material 23, and is covered with a soaking material 25. Is.

基材21としては、例えば、厚さ7.0mmないし8.5mmの合板、HDF、MDF、パーティクルボード、ポリスチレン発泡体、ポリエチレン発泡体、ポリエチレンテレフタレート発泡体、ポリプロピレン発泡体、ウレタン発泡体およびロックウール板等が挙げられる。   Examples of the base material 21 include a plywood having a thickness of 7.0 mm to 8.5 mm, HDF, MDF, particle board, polystyrene foam, polyethylene foam, polyethylene terephthalate foam, polypropylene foam, urethane foam, and rock wool. A board etc. are mentioned.

伝熱材23としては、例えば、厚さ0.02mmないし1.0mmのアルミニウム、銅、ジュラルミン、鉄等からなる薄板材、箔材が挙げられる。   Examples of the heat transfer material 23 include thin plate materials and foil materials made of aluminum, copper, duralumin, iron, and the like having a thickness of 0.02 mm to 1.0 mm.

パイプ24としては、例えば、外径7.2mmないし8.2mmの架橋ポリエチレン、ポリブテン、銅等からなるものが挙げられる。   Examples of the pipe 24 include those made of cross-linked polyethylene having an outer diameter of 7.2 mm to 8.2 mm, polybutene, copper, and the like.

均熱材25としては、例えば、厚さ0.02mmないし1.0mmのアルミニウム、銅、ジュラルミン、鉄等の薄板材、箔材が挙げられる。   Examples of the soaking material 25 include thin plate materials such as aluminum, copper, duralumin, and iron, and foil materials having a thickness of 0.02 mm to 1.0 mm.

暖房用フローリング30は、図3Aに示すように、表裏面を化粧材31および裏面材32で被覆した厚さ2.0mmないし3.0mmの基板33(強化ダイライト 大建株式会社製)である。そして、前記基板33は、その対向する側端面に相互に嵌合可能な雄実部34および雌実部35を設けてある。   As shown in FIG. 3A, the heating flooring 30 is a substrate 33 (made by Reinforced Dylite Daiken Co., Ltd.) having a thickness of 2.0 mm to 3.0 mm whose front and back surfaces are covered with a decorative material 31 and a back material 32. The substrate 33 is provided with a male part 34 and a female part 35 that can be fitted to each other on opposite side end surfaces.

化粧材31としては、例えば、厚さ0.1mmないし1.0mmの天然木質化粧単板、WPC加工化粧単板、紙あるいはオレフィン樹脂からる化粧シートが挙げられる。   Examples of the decorative material 31 include a natural wooden decorative veneer having a thickness of 0.1 mm to 1.0 mm, a WPC processed decorative veneer, paper, or a decorative sheet made of olefin resin.

裏面材32としては、例えば、厚さ0.1mmないし1.0mmの天然木、紙、樹脂およびアルミからなる薄板材あるいはシート材が挙げられる。なお、反りの発生を防止する見地より、化粧材31と裏面材32との線膨張率が等しくなる材質を組み合わせることが好ましい。   Examples of the back material 32 include a thin plate material or a sheet material made of natural wood, paper, resin, and aluminum having a thickness of 0.1 mm to 1.0 mm. From the viewpoint of preventing the occurrence of warpage, it is preferable to combine materials having the same linear expansion coefficient between the decorative material 31 and the back surface material 32.

基板33となる強化ダイライトは床材、特に、床暖房に適しており、以下の手順で製造される。
すなわち、鉱物質繊維、無機粉状体および結合剤を水中に投入し、さらに、撥水剤、消泡剤および顔料等の添加剤を加えて攪拌し、次いで凝集剤等の補助添加剤を加えることにより、固形分率が数%のスラリーを得る。ついで、前記スラリーから長網式又は丸網式抄造機で抄造,脱水して得た湿潤マットに、第1次熱圧プレス(温度60〜120℃、圧力5〜7kg/cm、加圧時間30〜150秒)を施してプレセミキュアマットを得た後、熱風通風ドライヤーで乾燥させてセミキュアマットを得る。そして、前記セミキュアマットに希釈された樹脂液を含浸し、第2次熱圧プレスを施して平均比重1.2〜1.7の硬質繊維板を得、前記硬質繊維板の表裏面に化粧シートを貼着一体化する工程からなる。
The reinforced die light serving as the substrate 33 is suitable for flooring, particularly floor heating, and is manufactured by the following procedure.
That is, mineral fiber, inorganic powder and binder are put into water, and additives such as water repellent, antifoaming agent and pigment are added and stirred, and then auxiliary additives such as flocculant are added. Thus, a slurry having a solid content rate of several percent is obtained. Next, a primary hot press (temperature 60 to 120 ° C., pressure 5 to 7 kg / cm 2 , pressurization time) is applied to the wet mat obtained by paper making and dewatering from the slurry with a long-mesh type or round net type paper machine. 30 to 150 seconds) to obtain a pre-semi-cure mat, followed by drying with a hot air draft dryer to obtain a semi-cure mat. Then, the semi-cured mat is impregnated with the diluted resin solution and subjected to a second hot press to obtain a hard fiberboard having an average specific gravity of 1.2 to 1.7, and a makeup is applied to the front and back surfaces of the hard fiberboard. It consists of the process of sticking and integrating sheets.

鉱物質繊維としては、例えば、ロックウール、スラグウール、ガラスウール、ガラス繊維等が挙げられ、これらを単体もしくは複数混合して用いられる。前記鉱物質繊維の添加量は35〜70重量%、特に、45〜60重量%の割合で添加することが好適である。鉱物質繊維が35重量%未満であると、得られたセミキュアマットの曲げ強度が弱くなり、セミキュアマットのハンドリングが困難になるからである。一方、鉱物質繊維が70重量%を越えると、相対的に添加される無機粉状体の添加量が少なくなり、得られたセミキュアマットに水で希釈した樹脂液を塗布,含浸し、再度、熱圧プレスしても、密度が上がりにくいからである。   Examples of the mineral fiber include rock wool, slag wool, glass wool, and glass fiber, and these are used alone or in combination. The mineral fiber is added in an amount of 35 to 70% by weight, particularly 45 to 60% by weight. This is because if the mineral fiber is less than 35% by weight, the bending strength of the obtained semi-cured mat becomes weak and handling of the semi-cured mat becomes difficult. On the other hand, when the mineral fiber exceeds 70% by weight, the amount of inorganic powder added relatively decreases, and the obtained semi-cure mat is coated and impregnated with a resin solution diluted with water. This is because the density is hardly increased even by hot pressing.

前記鉱物質繊維の部分的代替物として耐熱性有機繊維を使用してもよい。耐熱性有機繊維を使用すると、シャルピー衝撃強度が飛躍的に向上し、床材の切削加工時の割れや欠け、飛び欠けの改善に非常に有効だからである。ここで、耐熱性有機繊維とは、150〜200℃の熱で熱圧プレスしても溶融しない繊維をいい、例えば、ナイロン、テトロン、ポリアミド、ポリプロピレン、ポリエチレンテレフタレート、ポリウレタンの他、各種ゴム繊維及びこれらの複合物または木質繊維等が挙げられる。   Heat resistant organic fibers may be used as a partial substitute for the mineral fibers. This is because the use of heat-resistant organic fibers dramatically improves the Charpy impact strength and is extremely effective in improving cracks, chipping and chipping during cutting of floor materials. Here, the heat-resistant organic fiber refers to a fiber that does not melt even when hot-pressed with heat of 150 to 200 ° C., for example, nylon, tetron, polyamide, polypropylene, polyethylene terephthalate, polyurethane, various rubber fibers, and These composites or wood fibers can be mentioned.

また、前記耐熱性有機繊維の添加量は全体重量の0.5〜15重量%が好ましい。添加量が0.5重量%未満であると、シャルピー衝撃強度の向上効果が殆どないからである。また、添加量が15重量%を超えると、抄造時に凝集不良が発生し、密度の不均一なセミキュアマットとなってしまうだけでなく、セミキュアマットに再度熱圧プレスをかけても、比重が上がらず、シャルピー衝撃強度が低下するからである。   The addition amount of the heat-resistant organic fiber is preferably 0.5 to 15% by weight of the total weight. This is because when the addition amount is less than 0.5% by weight, there is almost no effect of improving the Charpy impact strength. Further, if the addition amount exceeds 15% by weight, not only a cohesive failure occurs during papermaking, but a semi-cured mat having a non-uniform density is obtained, and even if the semi-cured mat is subjected to hot press again, the specific gravity is increased. This is because the Charpy impact strength is reduced.

前記耐熱性有機繊維の長さは1.0〜15mmが好適である。長さが1.0mm未満であると、シャルピー衝撃強度向上の効果がほとんど無く、長さが15mmを超えると、抄造時に凝集不良が発生し、密度の均一なセミキュアマットが得られないからである。   The length of the heat resistant organic fiber is preferably 1.0 to 15 mm. If the length is less than 1.0 mm, there is almost no effect of improving Charpy impact strength. If the length exceeds 15 mm, a cohesive failure occurs during papermaking, and a semi-cured mat with uniform density cannot be obtained. is there.

前記耐熱性有機繊維は、細ければ細いほど抄造時の均一な分散が可能になるので、少量で効果を発揮するためには細いものが好ましく、一般的には直径500μm以下、より好ましくは30〜100μmのものが好適である。   The thinner the heat-resistant organic fiber is, the more uniformly it can be dispersed at the time of papermaking. Therefore, a thin one is preferable in order to exert an effect in a small amount, and generally has a diameter of 500 μm or less, more preferably 30. Those having a thickness of ˜100 μm are preferred.

無機粉状体としては、例えば、シラス発泡体、シリカフラワー、ガラス発泡体、炭酸カルシウム、酸化アルミ、バーミキュライト等が挙げられ、これらを単体もしくは複数混合して用いられる。また、前記無機粉状体の添加量は、20〜55重量%の割合で添加することが好ましい。無機粉状体が20重量%未満であると、得られたセミキュアマットの曲げ強度が弱くなり、セミキュアマットのハンドリングが困難になるからである。一方、無機粉状体が55重量%を越えると、相対的に添加される鉱物質繊維の添加量が少なくなり、得られたセミキュアマットに水で希釈した樹脂液を塗布,含浸し、再度、熱圧プレスしても、密度が上がりにくいからである。   Examples of the inorganic powder include shirasu foam, silica flour, glass foam, calcium carbonate, aluminum oxide, vermiculite and the like, and these are used alone or in combination. Moreover, it is preferable to add the said inorganic powdery material in the ratio of 20 to 55 weight%. This is because when the inorganic powder is less than 20% by weight, the bending strength of the obtained semi-cured mat becomes weak and handling of the semi-cured mat becomes difficult. On the other hand, when the amount of the inorganic powder exceeds 55% by weight, the amount of the relatively added mineral fiber is reduced, and the obtained semi-cured mat is coated with a resin solution diluted with water, impregnated, This is because the density is hardly increased even by hot pressing.

結合剤としては、例えば、メラミン樹脂、フェノール樹脂、イソシアネート樹脂、ポリビニールアルコール、アクリルエマルジョンまたは酢ビエマルジョンおよびこれらの変性物の他、澱粉、コーンスターチ、大豆粉、小麦粉等が挙げられ、これらを単体もしくは複数混合して用いられる。前記結合剤の添加量としては、5〜25重量%が好ましい。添加量が5重量%未満であると、セミキュアマットの強度不足を生じるからである。また、添加量が25重量%を超えると、相対的に鉱物質繊維の添加量が少なくなり、特に、曲げ強度が弱くなるからである。   Examples of the binder include melamine resin, phenol resin, isocyanate resin, polyvinyl alcohol, acrylic emulsion or vinyl acetate emulsion and modified products thereof, starch, corn starch, soybean flour, wheat flour, etc. Or a mixture of two or more is used. The addition amount of the binder is preferably 5 to 25% by weight. This is because when the amount added is less than 5% by weight, the strength of the semi-cured mat is insufficient. Moreover, when the addition amount exceeds 25% by weight, the addition amount of the mineral fiber is relatively reduced, and in particular, the bending strength is weakened.

特に、結合剤がイソシアネート樹脂、ポリビニールアルコール、アクリルエマルジョンまたは酢ビエマルジョンおよびこれらの変性物、澱粉、コーンスターチ、大豆粉、小麦粉であれば、第1次熱圧プレスによるセミキュア時の60℃〜120℃の熱による硬化、および、含水率10%以下までに乾燥する際の硬化により、比重0.3〜0.9のセミキュアマットの曲げ性能を高め、ハンドリング性を向上させことができる。
ただし、ポリビニールアルコール、酢ビエマルジョン及びこれらの変性物、澱粉、コーンスターチ、大豆粉又は小麦粉の添加量が多くなると、最終的に得られる床材の耐水性が悪くなる。このため、これらを結合剤として使用する場合には、添加量を5重量%以下とし、他の結合剤と併用することが望ましい。
In particular, if the binder is an isocyanate resin, polyvinyl alcohol, acrylic emulsion or vinyl acetate emulsion and modified products thereof, starch, corn starch, soybean flour, wheat flour, 60 ° C. to 120 ° C. during semi-cure by the first hot press. Curing by heating at 0 ° C. and curing when drying to a moisture content of 10% or less can improve the bending performance of a semi-cured mat having a specific gravity of 0.3 to 0.9 and improve handling properties.
However, when the addition amount of polyvinyl alcohol, vinyl acetate emulsion and their modified products, starch, corn starch, soybean powder or wheat flour increases, the water resistance of the finally obtained flooring material deteriorates. For this reason, when using these as a binder, it is desirable to make the addition amount 5% by weight or less and use it together with other binders.

一方、例えば、前記メラミン樹脂、フェノール樹脂等の耐水性に優れた結合剤は、第1次熱圧プレスによるセミキュア時の60℃〜120℃の熱で完全に硬化しないが、150〜250℃の高温高圧下の第2次熱圧プレスで完全に硬化することにより、最終的に得られる床材が優れた耐水性を発現する。しかし、前述の耐水性に優れた結合剤は高価であるので、添加量が20重量%を超えることは望ましくない。   On the other hand, for example, binders excellent in water resistance such as the melamine resin and the phenol resin are not completely cured by heat at 60 ° C. to 120 ° C. at the time of semi-curing by the first hot press, but are 150 to 250 ° C. By completely curing with a secondary hot press under high temperature and high pressure, the floor material finally obtained exhibits excellent water resistance. However, since the above-mentioned binder having excellent water resistance is expensive, it is not desirable that the amount added exceeds 20% by weight.

したがって、セミキュアマットのハンドリング性を向上させるための結合剤と、最終的に得られる化粧材の耐水性を向上させるための結合剤とを併用し、少なくとも2種類使用することが望ましい。ただし、コスト及び耐水性の見地より、結合剤の添加量が最大25重量%を超えることは好ましくない。   Therefore, it is desirable to use at least two types of a binder for improving the handling property of the semi-cured mat and a binder for improving the water resistance of the finally obtained cosmetic material. However, from the viewpoint of cost and water resistance, it is not preferable that the added amount of the binder exceeds a maximum of 25% by weight.

スラリーを湿式抄造して得られる湿潤マットに第1次熱圧プレスを施してプレセミキュアマットが得られる。後述するセミキュアマットの剛性を高め、ハンドリング性を改善するためのセミキュアは、圧力3〜7kg/cm、温度60〜120℃、加圧時間40秒〜5分程度の第1次熱圧プレスで行われる。第1次熱圧プレスに使用されるプレス機は単段または多段式のバッチ式プレス機でもよく、連続式の熱圧ベルト式プレス機でもよい。 A pre-semi-cure mat is obtained by subjecting a wet mat obtained by wet papermaking to a primary hot press. The semi-cure to improve the rigidity of the semi-cure mat, which will be described later, and improve the handling property is the first hot press with a pressure of 3-7 kg / cm 2 , a temperature of 60-120 ° C., and a pressurization time of about 40 seconds to 5 minutes. Done in The press used for the primary hot press may be a single-stage or multi-stage batch press, or a continuous hot-press belt press.

そして、前記プレセミキュアマットを、約80〜250℃に予め設定された熱風ドライヤー等で含水率10%以下に乾燥することにより、比重0.3〜0.9のセミキュアマットが得られる。   Then, the semi-cure mat having a specific gravity of 0.3 to 0.9 is obtained by drying the pre-semi-cure mat to a water content of 10% or less with a hot air dryer or the like preset at about 80 to 250 ° C.

前記セミキュアマットの表裏面それぞれに水で希釈された樹脂液を塗布し、第1次熱圧プレスよりも高温高圧条件下で第2次熱圧プレスを施すことにより、平均比重1.2〜1.7、厚み2〜6mmの硬質繊維板が得られる。   By applying a resin solution diluted with water to each of the front and back surfaces of the semi-cured mat and subjecting it to a second hot press under higher temperature and pressure conditions than the first hot press, the average specific gravity is 1.2 to 2. A hard fiberboard having a thickness of 1.7 and a thickness of 2 to 6 mm is obtained.

前記樹脂液には、ビニルウレタン系、アクリルエマルジョン、酢ビエマルジョン、ラテックスエマルジョン及びこれらの変性物または混合物が用いられ、水溶性樹脂であれば使用可能である。このうち、前記ラテックスエマルジョンは硬質繊維板の曲げ強度を向上させるので、他の樹脂と少量(5〜25重量%)混合して使用することが好ましい。ただし、添加量が多くなると、サンダー適性が悪くなるため、25重量%を超える添加量は好ましくない。また、サンダー適性を向上させるために、メラミン樹脂、フェノール樹脂、エポキシ樹脂等の硬質樹脂(5〜25重量%)を添加してもよい。ただし、これらの樹脂の添加量が多すぎると、硬くて脆い性質となり、好ましくない。   For the resin liquid, vinyl urethane, acrylic emulsion, vinyl acetate emulsion, latex emulsion and modified products or mixtures thereof are used, and any water-soluble resin can be used. Among these, since the latex emulsion improves the bending strength of the hard fiberboard, it is preferably used by mixing with other resins in a small amount (5 to 25% by weight). However, if the addition amount increases, the suitability of the sander deteriorates, so an addition amount exceeding 25% by weight is not preferable. Moreover, in order to improve a sander suitability, you may add hard resins (5-25 weight%), such as a melamine resin, a phenol resin, and an epoxy resin. However, if the amount of these resins added is too large, the resin becomes hard and brittle, which is not preferable.

また、前記樹脂液の樹脂率は10〜60重量%、特に、15〜40重量%に調整することが好ましい。樹脂率が10重量%未満であると、含浸させた樹脂液による寸法安定性および耐傷性の向上効果を期待できず、樹脂率が60重量%を超えると、樹脂液の浸透性が低下するからである。   The resin ratio of the resin liquid is preferably adjusted to 10 to 60% by weight, particularly 15 to 40% by weight. If the resin ratio is less than 10% by weight, the effect of improving the dimensional stability and scratch resistance due to the impregnated resin liquid cannot be expected. If the resin ratio exceeds 60% by weight, the permeability of the resin liquid decreases. It is.

さらに、樹脂率10〜60重量%になるように水で希釈された樹脂液は、セミキュアマットの表裏面のそれぞれに300g/m以上、塗布又は浸漬して含浸させることが好ましい。例えば、塗布量が200g/mであると、0.2mm程度の研削で、樹脂が含浸した層のほとんどが除去されてしまい、所望の耐傷性が得られないからである。特に、床材として使用する場合には、化粧シート等を貼り付ける前に面均一になるようにサンダー加工が行われ、0.1〜0.2mm程度研削されるのが一般的である。このため、0.2mm程度の研削を行っても樹脂が十分に残存するためには300g/m以上、好ましくは400g/mの塗布量が必要である。 Further, the resin solution diluted with water so as to have a resin ratio of 10 to 60% by weight is preferably impregnated by applying or dipping at least 300 g / m 2 on the front and back surfaces of the semi-cured mat. For example, when the coating amount is 200 g / m 2 , most of the layer impregnated with the resin is removed by grinding of about 0.2 mm, and desired scratch resistance cannot be obtained. In particular, when used as a flooring, it is generally sanded so that the surface is uniform before applying a decorative sheet or the like, and is ground by about 0.1 to 0.2 mm. For this reason, a coating amount of 300 g / m 2 or more, preferably 400 g / m 2 is required in order for the resin to remain sufficiently even after grinding of about 0.2 mm.

セミキュアマットは、接着剤のセミキュアによってある程度の撥水性を発現するので、樹脂液の浸透性を上げるために浸透剤(界面活性剤の1種であり、水で希釈された樹脂の表面張力を下げ、浸透性を高める薬剤)が加えられる。また、浸透剤に加え、消泡剤や離型剤を任意に添加してもよい。   The semi-cured mat exhibits a certain degree of water repellency due to the semi-curing of the adhesive, so that the surface tension of the resin diluted with water is a penetrant (a kind of surfactant, in order to increase the permeability of the resin liquid. Drugs that lower and increase permeability). Further, in addition to the penetrant, an antifoaming agent or a release agent may be optionally added.

特に、水で希釈された樹脂液を含浸させる場合には、高温高圧下での第2次熱圧プレス時に、バリ(プレス時に、セミキュアマットに含浸した余剰の樹脂を含む水や樹脂液がセミキュアマット外に流れ出し、硬質繊維板の周辺で硬化してしまう状態)が発生するため、厚みおよび比重に応じた量を塗布する必要がある。例えば、厚さ6mm、平均比重0.4のセミキュアマットの場合、表裏面から含浸する樹脂液の量がトータルで800g/mを超えると、バリが発生し始め、1200g/mを超えると、多量のバリが発生する。従って、厚さ6mm、平均比重0.4のセミキュアマットの場合、表裏面それぞれに樹脂400〜500g/m(総量で800〜1000g/m)を塗布,含浸させることが好ましい。 In particular, when impregnating a resin solution diluted with water, at the time of the second hot press under high temperature and high pressure, burrs (water or resin solution containing excess resin impregnated in the semi-cured mat at the time of press Therefore, it is necessary to apply an amount corresponding to the thickness and specific gravity. For example, in the case of a semi-cured mat having a thickness of 6 mm and an average specific gravity of 0.4, when the total amount of the resin liquid impregnated from the front and back surfaces exceeds 800 g / m 2 , burrs begin to occur and exceeds 1200 g / m 2 . A lot of burrs are generated. Accordingly, in the case of a semi-cured mat having a thickness of 6 mm and an average specific gravity of 0.4, it is preferable to apply and impregnate a resin 400 to 500 g / m 2 (total amount 800 to 1000 g / m 2 ) on each of the front and back surfaces.

また、樹脂液を塗布,含浸させる前に、少なくとも片面に凹部または表裏面を連通する貫通穴を設けることにより、バリの発生を抑制してもよい。これらの凹部または貫通穴は、水で希釈された樹脂液を内部に浸透させる効果もある。   Moreover, before applying and impregnating the resin liquid, the generation of burrs may be suppressed by providing a through hole that communicates the recess or the front and back surfaces on at least one surface. These recesses or through holes also have an effect of allowing the resin liquid diluted with water to penetrate inside.

前記凹部または貫通穴は相互間のピッチが2cmよりも大きくなると、浸透補助の効果が薄いため、ピッチ2cm以下、好ましくはピッチ1cm以下で設けることが望ましい。例えば、ピッチ2cmで凹部または貫通穴を設けると、10cm各内に25個/10cm角の凹部または貫通穴が設けられることになる。また、ピッチ1cmの場合は、約100個/10cm角の凹部または貫通穴が開けられることになる。   When the pitch between the recesses or the through-holes is larger than 2 cm, the effect of assisting infiltration is thin. Therefore, it is desirable to provide the recesses or through-holes with a pitch of 2 cm or less, preferably 1 cm or less. For example, when recesses or through holes are provided at a pitch of 2 cm, 25/10 cm square recesses or through holes are provided in each 10 cm. In addition, when the pitch is 1 cm, approximately 100/10 cm square recesses or through holes are formed.

前記凹部または貫通穴は平板に突設した多数の針状突起でバッチ式プレスにより設けてもよく、好ましくは回転ロールの表面に設けられた多数の針状突起により連続的に加工することが望ましい。   The concave portion or the through hole may be provided by a batch type press with a large number of needle-like protrusions protruding from a flat plate, and it is preferable that the recess or the through hole is continuously processed by a large number of needle-like protrusions provided on the surface of the rotating roll .

前記凹部は直径3.0mm以下であることが必要で、好ましくは0.5〜1.5mm程度が良い。直径が3.0mmを越えると、高温高圧条件下で第2次熱圧プレスを施した場合に、表裏面に連通する凹凸部が発生し、床材として使用できないからである。ただし、直径1.5mm以上の凹部になると、高温高圧条件下でプレスをしても、凹部が完全に埋まりにくくなる。このため、直径1.5mm以上の凹部を設ける場合には片面だけとし、凹部を設けた面を床材の裏面に使用するのが望ましい。   The concave portion needs to have a diameter of 3.0 mm or less, and preferably about 0.5 to 1.5 mm. When the diameter exceeds 3.0 mm, when the second hot press is performed under high temperature and high pressure conditions, uneven portions communicating with the front and back surfaces are generated and cannot be used as a flooring. However, when the concave portion has a diameter of 1.5 mm or more, the concave portion is hardly completely filled even when pressed under a high temperature and high pressure condition. For this reason, when providing the recessed part with a diameter of 1.5 mm or more, it is desirable to use only one side and to use the surface provided with the recessed part for the back surface of the flooring.

前記凹部の深さは、セミキュアマット全体厚さの半分以上の深さであるが好ましい。ただし、凹部を化粧面にする場合は、直径1.0mm以下、深さはセミキュアマット全体厚さの半分以下であることが好ましい。第2次熱圧プレスで高温高圧プレスをかけることにより、熱圧プレスで凹部自体がつぶれるとともに、樹脂で埋められるので、表面上、凹部をほとんど判別できなくなるからである。   The depth of the recess is preferably half or more of the entire thickness of the semi-cure mat. However, when the concave portion is a decorative surface, it is preferable that the diameter is 1.0 mm or less and the depth is not more than half of the entire thickness of the semi-cured mat. This is because by applying a high-temperature and high-pressure press in the second hot press, the recess itself is crushed by the hot press and is filled with resin, so that the recess can hardly be identified on the surface.

一方、貫通穴の場合は、既述の通り、直径1.5mm以上の穴になると、高温高圧条件下でプレスをしても穴が完全に埋まらないので、表裏面のどちらにも連通する貫通穴の場合は、直径1.0mm以下が望ましい。   On the other hand, in the case of a through hole, as described above, if the hole has a diameter of 1.5 mm or more, the hole is not completely filled even if pressed under high temperature and high pressure conditions. In the case of holes, a diameter of 1.0 mm or less is desirable.

高温高圧下で行う第2次熱圧プレスは、温度150〜250℃、圧力10〜30kg/cm、加圧時間3〜30分程度のプレス条件で行われる。この時、高温高圧プレスをかける前に0〜5kg/cm程度の圧力で数十秒〜数分程度の仮圧締を行った後、15〜20kg/cmの本圧締を行うことにより、バリの発生を抑制できる。所望の厚みに調整できるよう、2枚のプレス板間にディスタンスバーを配置してもよい。この場合は、面均一な長時間のプレスが必要であるため、バッチ式の単段又は多段式の熱圧プレス機が好適である。 The second hot press performed under high temperature and high pressure is performed under press conditions of a temperature of 150 to 250 ° C., a pressure of 10 to 30 kg / cm 2 , and a pressing time of about 3 to 30 minutes. At this time, by performing temporary pressing for several tens of seconds to several minutes at a pressure of about 0 to 5 kg / cm 2 before applying the high-temperature and high-pressure press, the main pressing is performed for 15 to 20 kg / cm 2. , The generation of burrs can be suppressed. A distance bar may be arranged between the two press plates so that the thickness can be adjusted to a desired thickness. In this case, since a long press with a uniform surface is required, a batch-type single-stage or multi-stage hot-pressure press is suitable.

前述のようにして得られた硬質繊維板の少なくとも片面に化粧シートを貼着一体化して床材となる。また、前記化粧シートに塗装を施してもよく、塗装としては、例えば、ウレタン塗装やUV塗装が挙げられる。   A decorative sheet is attached and integrated on at least one side of the hard fiberboard obtained as described above to form a flooring. In addition, the decorative sheet may be coated, and examples of the coating include urethane coating and UV coating.

一般的な床材として使用する場合は、化粧シートの上から溝加工や面取り加工が施される。例えば、0.25mmの厚みの突き板を貼り、表面をサンダーがけし、着色・UV塗装を施した後に、ルーターを使用して0.5mm巾で四周面取り加工を施すことにより、面取りした部分から硬質繊維板が見えてしまう。このため、スラリーに顔料を予め添加したり、含浸させる樹脂液に顔料あるいは染料を予め添加しておけば、硬質繊維板が予め化粧シートと同等又は近似の色に着色されているので、違和感の無い仕上りの床材を得ることができる。   When used as a general flooring, grooving or chamfering is performed on the decorative sheet. For example, after applying a veneer with a thickness of 0.25 mm, sanding the surface, coloring and UV coating, using a router to make a round chamfer with a width of 0.5 mm, from the chamfered part The hard fiberboard is visible. For this reason, if the pigment is added to the slurry in advance, or if the pigment or dye is added in advance to the resin liquid to be impregnated, the hard fiberboard is pre-colored in the same or similar color as the decorative sheet. A flooring with no finished finish can be obtained.

例えば、スラリーに顔料を添加する場合には、顔料の添加量は1〜10重量%であることが好ましい。1重量%未満であると、所望の着色が得られないからであり、10重量%を越えると、強度に悪影響を及ぼすからである。
また、樹脂液に顔料を添加する場合には、顔料の添加量は0.5〜5重量%であることが好ましい。0.5重量%未満であると、所望の着色が得られず、5重量%を越えると、樹脂液への分散が困難となるからである。
さらに、樹脂液に染料を添加する場合には、染料の添加量は0.1〜2重量%であることが好ましい。0.1重量%未満であると、所望の着色が得られず、2重量%を越えても、それ以上の効果が得られないからである。
For example, when a pigment is added to the slurry, the amount of the pigment added is preferably 1 to 10% by weight. This is because if it is less than 1% by weight, the desired coloring cannot be obtained, and if it exceeds 10% by weight, the strength is adversely affected.
Moreover, when adding a pigment to a resin liquid, it is preferable that the addition amount of a pigment is 0.5 to 5 weight%. If the amount is less than 0.5% by weight, the desired coloration cannot be obtained, and if it exceeds 5% by weight, it is difficult to disperse in the resin liquid.
Furthermore, when adding a dye to a resin liquid, it is preferable that the addition amount of a dye is 0.1 to 2 weight%. This is because if it is less than 0.1% by weight, the desired coloring cannot be obtained, and if it exceeds 2% by weight, no further effect can be obtained.

なお、基本的には、表面に設けられる化粧シートよりも淡色に設定しておけば、突き板に施される着色に応じて溝部分を任意に着色することも可能である。一方、溝部分の着色においては任意の色を選択できる。このため、例えば、全く異なる色に着色することにより、アクセント的に溝を配置することも可能である。   Basically, if the color is set to be lighter than the decorative sheet provided on the surface, the groove portion can be arbitrarily colored according to the color applied to the veneer. On the other hand, any color can be selected for coloring the groove portion. For this reason, for example, it is also possible to arrange the grooves in an accented manner by coloring them in completely different colors.

また、床材は薄いため、表面のみに化粧シートを貼った床材が反るおそれがないともいえないので、裏面材としてバッカー材を貼り付けておくことが望ましい。バッカー材としては、反りの発生を防止するため、床材の表面に貼り付けた化粧シートと同じ線膨張率のものを貼り付けることが望ましい。また、床暖房用フロアの上貼り床材の基材として使用する場合には、バッカー材の表面に更に均熱効果が期待できるアルミシート等の金属箔や金属板を貼り付けておけば、床暖房パネルの均熱材を省略してもよい。   Further, since the flooring material is thin, it cannot be said that the flooring material with the decorative sheet only on the front surface is not warped. Therefore, it is desirable to attach a backer material as the back surface material. As the backer material, in order to prevent the occurrence of warpage, it is desirable to apply a material having the same linear expansion coefficient as that of the decorative sheet attached to the surface of the flooring material. In addition, when using as a base material for floor coverings for floor heating, if a metal foil or a metal plate such as an aluminum sheet that can be expected to have a more uniform temperature effect is attached to the surface of the backer material, The soaking material of the heating panel may be omitted.

前述の実施形態にかかる化粧材は、床暖房用床材に適用する場合について説明したが、通常の床材だけでなく、内壁材、天井材および外壁材に適用してもよいことは勿論である。   Although the decorative material according to the above-described embodiment has been described as applied to a floor heating floor material, it may be applied not only to a normal floor material but also to an inner wall material, a ceiling material, and an outer wall material. is there.

第2実施形態は、図2に示すように、床下地10に床ボルト11を介して根太12を並設し、前記床ボルト11の間に断熱材13を配置するとともに、前記根太12にパーティクルボードからなる床パネル14を敷設した後、合板15を捨て張りし、ついで、床暖房パネル20および木質系暖房用フローリング30を順次積層した構造を有する。
なお、前記発熱床構造に使用される暖房用パネル20および木質系暖房用フローリング30は前述の第1実施形態と同様であるので、同一部分に同一番号を附して説明を省略する。
In the second embodiment, as shown in FIG. 2, joists 12 are juxtaposed on the floor base 10 via floor bolts 11, and a heat insulating material 13 is disposed between the floor bolts 11. After laying the floor panel 14 made of a board, the plywood 15 is discarded and then the floor heating panel 20 and the wood heating flooring 30 are sequentially laminated.
Since the heating panel 20 and the wood heating flooring 30 used in the heat generating floor structure are the same as those in the first embodiment, the same parts are denoted by the same reference numerals and the description thereof is omitted.

第3実施形態は、基本的構造が前述の第1,第2実施形態とほぼ同様であり、異なる点は、図4に示すように電気発熱線44を組み込んだ床暖房パネル40を使用する場合である。
前記床暖房パネル40は、合板からなる基板41の上面両側縁部に枠材42,42を配置し、その間に断熱材43を積層する。そして、前記断熱材43の上面に電気発熱線44を蛇行させて敷設するとともに、サーモスタット45を配置する。さらに、均熱板46で前記電気発熱線44を被覆した後、前記枠材42,42に暖房用フローリング30を架け渡して被覆してある。なお、電気発熱体には、線状電気発熱体または面状電気発熱体が使用できる。
In the third embodiment, the basic structure is substantially the same as that of the first and second embodiments described above. The difference is that the floor heating panel 40 incorporating the electric heating wire 44 is used as shown in FIG. It is.
The floor heating panel 40 has frame members 42 and 42 arranged on both side edges of the upper surface of a substrate 41 made of plywood, and a heat insulating material 43 is laminated therebetween. Then, the electric heating wire 44 is meandered on the upper surface of the heat insulating material 43 and a thermostat 45 is disposed. Further, the electric heating wire 44 is covered with a soaking plate 46 and then the heating flooring 30 is bridged over the frame members 42 and 42. As the electric heating element, a linear electric heating element or a planar electric heating element can be used.

本実施形態によれば、床暖房パネル40と暖房用フローリング30とを予めユニット化しておけるので、現場施工が容易となり、施工性が向上するという利点がある。他の構成は前述の実施形態とほぼ同様であるので、説明を省略する。   According to the present embodiment, since the floor heating panel 40 and the heating flooring 30 can be unitized in advance, there is an advantage that on-site construction becomes easy and workability is improved. Other configurations are substantially the same as those of the above-described embodiment, and thus description thereof is omitted.

(実施例1)
鉱物質繊維としてロックウール50重量%、 無機粉状体として炭酸カルシウム40重量%、結合剤としてスターチ3重量%および粉体フェノール樹脂7重量%を水中に投入して固形成分5%のスラリーを得、これに消泡剤を微量添加して攪拌した。前記スラリーを長網式抄造機で抄造した後、サクションポンプで脱水し、含水率50%の湿潤マットを得た。この湿潤マットに温度90℃、圧力7kg/cm、加圧時間1分のプレス条件で第1次熱圧プレスを行いプレセミキュアマットを得た。このプレセミキュアマットをウォーターカッターで30cm×90cmの大きさに切断し、220℃に調整した熱風ドライヤーで乾燥することにより、含水率5%、厚さ7mm、比重0.45のセミキュアマットを得た。
(Example 1)
50% by weight of rock wool as mineral fiber, 40% by weight of calcium carbonate as inorganic powder, 3% by weight of starch and 7% by weight of powdered phenol resin as a binder are put into water to obtain a slurry of 5% solid component. A small amount of an antifoaming agent was added thereto and stirred. The slurry was made with a long net paper machine and then dehydrated with a suction pump to obtain a wet mat with a moisture content of 50%. The wet mat was subjected to a first hot press under the press conditions of a temperature of 90 ° C., a pressure of 7 kg / cm 2 , and a pressurization time of 1 minute to obtain a pre-semi-cure mat. This pre-semi-cure mat is cut into a size of 30 cm × 90 cm with a water cutter and dried with a hot air dryer adjusted to 220 ° C. to obtain a semi-cure mat with a moisture content of 5%, a thickness of 7 mm and a specific gravity of 0.45. Obtained.

前記セミキュアマットの表裏面それぞれに樹脂液をフローコーターで400g/mずつ塗布して含浸させた。前記樹脂液は、アクリルエマルジョン80重量部にラテックス20重量部を添加するとともに、水で希釈して樹脂率35%に調整したものに、1重量%の浸透剤、0.05重量%の消泡剤、0.05重量%の離型剤をそれぞれ添加したものである。そして、前記セミキュアマットの両側に3.0mmのディスタンスバーを配置し、温度190℃、圧力15kg/cm、加圧時間20分のプレス条件で第2次熱圧プレスを行い、厚さ3.3mmの硬質繊維板を得た。 A resin solution was applied and impregnated at 400 g / m 2 on each of the front and back surfaces of the semi-cured mat with a flow coater. The resin solution was prepared by adding 20 parts by weight of latex to 80 parts by weight of acrylic emulsion and diluting with water to adjust the resin ratio to 35%. And 0.05% by weight of a release agent. Then, a 3.0 mm distance bar is arranged on both sides of the semi-cured mat, and the second hot press is performed under the press conditions of a temperature of 190 ° C., a pressure of 15 kg / cm 2 , and a pressurization time of 20 minutes to obtain a thickness of 3 A hard fiber board of .3 mm was obtained.

前記硬質繊維板の表裏面をサンダーがけし、面均一な3.0mmの硬質繊維板を得た。この時の外観を目視したところ、樹脂強化された面均一な表面を確認できた。さらに、前記硬質繊維板の表裏面に、酢ビエマルジョンおよびイソシアネートを混合した接着剤(130g/m)を塗布して厚さ0.45mmのカバ乾燥単板をそれぞれ貼り付けた。そして、前記カバ乾燥単板の表面にUV塗装を施して床材を得、これをサンプルとした。 The front and back surfaces of the hard fiber board were sanded to obtain a 3.0 mm hard fiber board with uniform surface. As a result of visual observation of the appearance at this time, it was confirmed that the resin-reinforced surface was uniform. Furthermore, an adhesive (130 g / m 2 ) mixed with vinyl acetate emulsion and isocyanate was applied to the front and back surfaces of the hard fiber board, and a 0.45 mm-thick hip dry veneer was attached thereto. And the surface of the said hips dry veneer was UV-coated to obtain a flooring, which was used as a sample.

前記サンプルの耐傷性を検証するため、耐キャスター試験、落球衝撃試験、シャルピー衝撃試験を行った。キャスター試験とは、重り25kgを乗せた鉄製単輪キャスターをサンプルの上で同一個所を500往復させ、この時の凹み量を測定する試験である。落球衝撃試験とは、重さ500gの鉄球を75cmの高さから落下させ、この時に生じた凹み量を測定する試験である。シャルピー衝撃試験とは、シャルピー衝撃強度試験機で測定を行う破壊試験をいう。ただし、床材の基材としての適性の判断を下すために、シャルピー衝撃試験では化粧シート等の表面化粧を施さない厚さ3.0mmの前記硬質繊維板単体についても試験した。また、基材としての適性を確認するため、厚さ3.0mmの前記硬質繊維板単体について耐熱乾燥試験(60℃・96時間)、および、耐温水試験(70℃・4時間)で長さの寸法変化率を測定した。測定結果を図5に示す。   In order to verify the scratch resistance of the sample, a caster resistance test, a falling ball impact test, and a Charpy impact test were performed. The caster test is a test in which an iron single-wheel caster carrying a weight of 25 kg is reciprocated 500 times on the same portion of the sample, and the amount of depression at this time is measured. The falling ball impact test is a test in which an iron ball having a weight of 500 g is dropped from a height of 75 cm and the amount of dent generated at this time is measured. The Charpy impact test is a destructive test in which measurement is performed with a Charpy impact strength tester. However, in order to judge the suitability of the flooring as a base material, the hard fiber board alone having a thickness of 3.0 mm, which is not subjected to surface decoration such as a decorative sheet, was also tested in the Charpy impact test. In addition, in order to confirm the suitability as a base material, the length of the hard fiber board having a thickness of 3.0 mm was measured in a heat-resistant drying test (60 ° C., 96 hours) and a hot water resistance test (70 ° C., 4 hours). The dimensional change rate was measured. The measurement results are shown in FIG.

(実施例2)
鉱物質繊維としてロックウール45重量%、耐熱性有機繊維としてナイロン繊維(長さ5mm、直径25μm)5重量%、無機粉状体として炭酸カルシウム40重量%、結合剤としてスターチ3重量%および粉体フェノール樹脂7重量%を水中に投入して固形成分5%のスラリーを得、これに消泡剤を微量添加して攪拌した。前記スラリーを長網式抄造機で抄造した後、サクションポンプで脱水し、含水率50%の湿潤マットを得た。この湿潤マットに温度90℃、圧力7kg/cm、加圧時間1分のプレス条件で第1次熱圧プレスを行なってプレセミキュアマットを得た。このプレセミキュアマットをウォーターカッターで30cm×90cmの大きさに切断し、更に220℃に調整した熱風ドライヤーで乾燥することにより、含水率5%、厚さ7mm、比重0.45のセミキュアマットを得た。
(Example 2)
45% by weight of rock wool as mineral fiber, 5% by weight of nylon fiber (length 5 mm, diameter 25 μm) as heat-resistant organic fiber, 40% by weight of calcium carbonate as inorganic powder, 3% by weight of starch as binder, and powder 7% by weight of phenol resin was put into water to obtain a slurry having a solid content of 5%, and a small amount of an antifoaming agent was added thereto and stirred. The slurry was made with a long net paper machine and then dehydrated with a suction pump to obtain a wet mat with a moisture content of 50%. The wet mat was subjected to a first hot press under the press conditions of a temperature of 90 ° C., a pressure of 7 kg / cm 2 and a pressurization time of 1 minute to obtain a pre-semi-cure mat. This pre-semi-cure mat is cut into a size of 30cm x 90cm with a water cutter and further dried with a hot air dryer adjusted to 220 ° C, so that the semi-cure mat has a water content of 5%, a thickness of 7mm and a specific gravity of 0.45. Got.

以後、前述の実施例1と同様の処理を行うことによって得た床材をサンプルとした。そして、前記サンプルに耐キャスター試験、落球衝撃試験、シャルピー衝撃試験を行った。また、基材としての適性を確認するための試験として、3.0mmの前記硬質繊維板単体について耐熱乾燥試験(60℃・96時間)、耐温水試験(70℃・4時間)、および、シャルピー衝撃試験を行った。測定結果を図5に示す。   Thereafter, a flooring obtained by performing the same treatment as in Example 1 was used as a sample. The sample was subjected to a caster resistance test, a falling ball impact test, and a Charpy impact test. In addition, as tests for confirming suitability as a base material, a heat resistant drying test (60 ° C./96 hours), a hot water resistance test (70 ° C./four hours), and Charpy with respect to the 3.0 mm hard fiber board alone. An impact test was performed. The measurement results are shown in FIG.

(比較例1)
市販の合板(厚さ3.3mm)の表裏面にサンダーがけを行い、厚さ3.0mmの合板を得た。この合板の表裏面に、酢ビエマルジョンおよびイソシアネートを混合した接着剤を塗布(130g/m)して0.45mmmのカバ乾燥単板を貼り付けた。さらに、前記カバ乾燥単板の表面にUV塗装を施し、合板を基材とする床材を得、これをサンプルとした。
(Comparative Example 1)
Sanding was performed on the front and back surfaces of a commercially available plywood (thickness: 3.3 mm) to obtain a plywood having a thickness of 3.0 mm. On the front and back surfaces of this plywood, an adhesive mixed with vinyl acetate emulsion and isocyanate was applied (130 g / m 2 ), and a 0.45 mm. Furthermore, UV coating was applied to the surface of the cover dried veneer to obtain a flooring based on plywood, which was used as a sample.

前記サンプルに耐キャスター試験、落球衝撃試験、シャルピー衝撃試験を行った。さらに、基材としての適性を確認するための試験として、3.0mmの前記硬質繊維板単体について耐熱乾燥試験(60℃・96時間)、耐温水試験(70℃・4時間)、および、シャルピー衝撃試験を行った。測定結果を図5に示す。   The sample was subjected to a caster resistance test, a falling ball impact test, and a Charpy impact test. Furthermore, as a test for confirming the suitability as a base material, a heat resistant drying test (60 ° C./96 hours), a warm water resistant test (70 ° C./four hours), and Charpy with respect to the 3.0 mm hard fiber board alone. An impact test was performed. The measurement results are shown in FIG.

(比較例2)
実施例1で使用した含水率5%、厚さ7mm、比重0.45のセミキュアマットの表裏面に、浸透剤1重量%を添加した水溶液をフローコーターで400g/mずつ塗布して含浸させた。そして、前記セミキュアマットの両側に3.0mmのディスタンスバーを配置し、温度190℃、圧力15kg/cm、加圧時間20分のプレス条件で第2次熱圧プレスを行い、厚さ3.3mmの硬質繊維板を得た。以後、前述の実施例1と同様に処理して得た床材をサンプルとした。そして、前記サンプルに耐キャスター試験、落球衝撃試験、シャルピー衝撃試験を行った。さらに、基材としての適性を確認するための試験として、3.0mmの前記硬質繊維板単体について耐熱乾燥試験(60℃・96時間)、耐温水試験(70℃・4時間)、および、シャルピー衝撃試験を行った。測定結果を図5に示す。
(Comparative Example 2)
An aqueous solution containing 1% by weight of a penetrant was applied to the front and back surfaces of a semi-cure mat having a water content of 5%, a thickness of 7 mm, and a specific gravity of 0.45 used in Example 1, 400 g / m 2 by impregnation with a flow coater. I let you. Then, a 3.0 mm distance bar is arranged on both sides of the semi-cured mat, and the second hot press is performed under the press conditions of a temperature of 190 ° C., a pressure of 15 kg / cm 2 , and a pressurization time of 20 minutes to obtain a thickness of 3 A hard fiber board of .3 mm was obtained. Thereafter, the floor material obtained by the same treatment as in Example 1 was used as a sample. The sample was subjected to a caster resistance test, a falling ball impact test, and a Charpy impact test. Furthermore, as a test for confirming the suitability as a base material, a heat resistant drying test (60 ° C./96 hours), a warm water resistant test (70 ° C./four hours), and Charpy with respect to the 3.0 mm hard fiber board alone. An impact test was performed. The measurement results are shown in FIG.

(比較例3)
実施例1で使用した含水率5%、厚さ7mm、比重0.45のセミキュアマットの表裏面に、樹脂液を200g/mずつ塗布した。前記樹脂液は、水で希釈した樹脂率35%のアクリルエマルジョンに、1重量%の浸透剤、0.05重量%の消泡剤、0.05%の離型剤をそれぞれ添加して得たものである。
(Comparative Example 3)
200 g / m 2 of the resin solution was applied to the front and back surfaces of the semi-cure mat having a water content of 5%, a thickness of 7 mm, and a specific gravity of 0.45 used in Example 1. The resin solution was obtained by adding 1% by weight of a penetrant, 0.05% by weight of an antifoaming agent, and 0.05% of a release agent to an acrylic emulsion having a resin ratio of 35% diluted with water. Is.

そして、前記セミキュアマットの両側に3.0mmのディスタンスバーを配置し、温度190℃、圧力15kg/cm、加圧時間20分のプレス条件で第2次熱圧プレスを行い、厚さ3.3mmの硬質繊維板を得た。ついで、前記硬質繊維板の両面をサンダーがけし、面均一な3.0mmの硬質繊維板を得た。この時、外観目視をしたところ、ほとんどの部分において樹脂が剥離していることを確認できた。以後、前述の実施例1と同様に処理して得た床材をサンプルとした。 Then, a 3.0 mm distance bar is arranged on both sides of the semi-cured mat, and the second hot press is performed under the press conditions of a temperature of 190 ° C., a pressure of 15 kg / cm 2 , and a pressurization time of 20 minutes to obtain a thickness of 3 A hard fiber board of .3 mm was obtained. Next, both sides of the hard fiber board were sanded to obtain a 3.0 mm hard fiber board with a uniform surface. At this time, when the appearance was visually observed, it was confirmed that the resin was peeled off in most parts. Thereafter, the floor material obtained by the same treatment as in Example 1 was used as a sample.

そして、前記サンプルに耐キャスター試験、落球衝撃試験、シャルピー衝撃試験を行った。また、基材としての適性を確認するための試験として、3.0mmの前記硬質繊維板単体について耐熱乾燥試験(60℃・96時間)、耐温水試験(70℃・4時間)、および、シャルピー衝撃試験を行った。測定結果を図5に示す。   The sample was subjected to a caster resistance test, a falling ball impact test, and a Charpy impact test. In addition, as tests for confirming suitability as a base material, a heat resistant drying test (60 ° C./96 hours), a hot water resistance test (70 ° C./four hours), and Charpy with respect to the 3.0 mm hard fiber board alone. An impact test was performed. The measurement results are shown in FIG.

図5Aから明らかなように、耐キャスター試験、落球衝撃試験において、実施例1,実施例2が比較例1,2,3よりも明らかに優れていることを確認できた。また、シャルピー衝撃試験において、実施例1,実施例2が比較例2,3よりも優れ、比較例1よりも若干劣っていることが判明したが、これは実用上、問題のない差である。   As is clear from FIG. 5A, it was confirmed that Example 1 and Example 2 were clearly superior to Comparative Examples 1, 2 and 3 in the caster resistance test and the falling ball impact test. Further, in the Charpy impact test, it was found that Example 1 and Example 2 were superior to Comparative Examples 2 and 3 and slightly inferior to Comparative Example 1, but this is a practically no problem difference. .

図5Bから明らかなように、耐熱乾燥試験での寸法安定性において、実施例1,実施例2が比較例1よりも優れているとともに、比較例2,3とほぼ同等であることが明白となった。また、耐温水試験での寸法安定性において、実施例1,実施例2が比較例1,2,3よりも優れていることが明らかとなった。さらに、シャルピー衝撃試験において、実施例1,実施例2が比較例2,3よりも優れているが、比較例1よりも劣っていることが判明した。   As is clear from FIG. 5B, it is clear that Example 1 and Example 2 are superior to Comparative Example 1 in terms of dimensional stability in the heat-resistant drying test, and are almost equivalent to Comparative Examples 2 and 3. became. Moreover, it became clear that Example 1 and Example 2 were superior to Comparative Examples 1, 2 and 3 in the dimensional stability in the hot water resistance test. Further, in the Charpy impact test, it was found that Example 1 and Example 2 were superior to Comparative Examples 2 and 3, but were inferior to Comparative Example 1.

特に、硬質繊維板の表裏面にカバ乾燥単板を貼着一体化したサンプルと、硬質繊維板単体からなるサンプルとを比較すると、シャルピー衝撃試験において、比較例1と実施例1,2との差が小さくなっていることが判った。これは、硬質繊維板とカバ乾燥単板との相性が良く、貼着一体化することにより、両者の特性の相乗効果によって耐衝撃性が向上するためであると考えられる。   In particular, when comparing a sample in which a cover dry veneer is adhered and integrated on the front and back surfaces of a hard fiber board and a sample made of a hard fiber board alone, in the Charpy impact test, Comparative Example 1 and Examples 1 and 2 It was found that the difference was getting smaller. This is considered to be because the compatibility between the hard fiberboard and the dry cover single board is good, and the impact resistance is improved by the synergistic effect of the characteristics of the two by integrating them together.

(実施例3)
厚さ3mmの強化ダイライトを基板とする暖房用フローリングの熱伝導率を熱伝導率測定器(英弘精機(株)製、型式HC−071H)を使用し、JIS A1412−2に基づいて測定した。測定結果は0.14Kcal/h・m・℃であった。
(Example 3)
The thermal conductivity of a heating flooring using a reinforced die light having a thickness of 3 mm as a substrate was measured based on JIS A1412-2 using a thermal conductivity measuring device (manufactured by Eihiro Seiki Co., Ltd., model HC-071H). The measurement result was 0.14 Kcal / h · m · ° C.

(比較例4)
厚さ3mmの合板を基材とする点を除き、他は前述の第3実施例と同様に構成した暖房用フローリングの熱伝導率を、実施例3と同一条件で測定した。測定結果は、0.07Kcal/h・m・℃であった。
(Comparative Example 4)
Except for the point that a 3 mm-thick plywood is used as a base material, the thermal conductivity of the heating flooring configured in the same manner as in the above-described third example was measured under the same conditions as in Example 3. The measurement result was 0.07 Kcal / h · m · ° C.

以上の測定結果から、同一厚さ寸法であっても、実施例3は比較例4の約2倍の熱伝導率を有していることが判明した。このため、実施例3にかかる強化ダイライトを使用すれば、前述の耐衝撃性に関する測定結果と相俟って、通常の暖房用フローリングよりも著しく薄くできることが判った。   From the above measurement results, it was found that even if the thickness was the same, Example 3 had a thermal conductivity approximately twice that of Comparative Example 4. For this reason, when the reinforced die light concerning Example 3 was used, it turned out that it can be remarkably thin rather than the normal flooring for heating combined with the measurement result regarding the above-mentioned impact resistance.

(実施例4)
厚さ3mmの前記強化ダイライトを基板とする暖房用フローリングを使用した発熱床構造について、室温20℃、通湯温度45℃、通湯開始から30分経過した後の床面の温度上昇を測定した。その結果、7℃の温度上昇を確認できた。
Example 4
About the heating floor structure using the flooring for heating which made the above-mentioned reinforced die light 3mm thick as a substrate, room temperature 20 ° C, hot water temperature 45 ° C, and the temperature rise of the floor after 30 minutes from the start of hot water was measured. . As a result, a temperature increase of 7 ° C. was confirmed.

(比較例5)
厚さ6mmの合板を基板とする点を除き、他は実施例3と同一条件で温度上昇を測定した。その結果、4℃の温度上昇を確認できた。
(Comparative Example 5)
The temperature rise was measured under the same conditions as in Example 3 except that a 6 mm thick plywood was used as the substrate. As a result, a temperature increase of 4 ° C. was confirmed.

(比較例6)
厚さ12mmの合板を基板とする点を除き、他は実施例3と同一条件で温度上昇を測定した。その結果、2℃の温度上昇を確認できた。
(Comparative Example 6)
The temperature rise was measured under the same conditions as in Example 3 except that a 12 mm thick plywood was used as the substrate. As a result, a temperature increase of 2 ° C. was confirmed.

実施例4および比較例5,6から明かなように、実施例4の方が比較例5,6よりも温度の立ち上がりが早いことを確認できた。   As is clear from Example 4 and Comparative Examples 5 and 6, it was confirmed that Example 4 was faster in temperature rise than Comparative Examples 5 and 6.

本発明にかかる発熱床構造は、前述の実施形態にかぎらず、他の発熱体を組み込んだ発熱床構造に適用してもよいことは勿論である。   Of course, the heat generating floor structure according to the present invention is not limited to the above-described embodiment, and may be applied to a heat generating floor structure incorporating another heat generating element.

本発明にかかる発熱床構造の第1実施形態を示す断面図である。It is sectional drawing which shows 1st Embodiment of the heat generation floor structure concerning this invention. 本発明にかかる発熱床構造の第2実施形態を示す断面図である。It is sectional drawing which shows 2nd Embodiment of the heat generation floor structure concerning this invention. 図A,図Bは第1,第2実施形態において使用される木質系暖房用フローリングおよび床暖房パネルを示す断面図である。FIGS. A and B are cross-sectional views showing the wood heating flooring and floor heating panel used in the first and second embodiments. 本発明にかかる発熱床構造の第3実施形態に使用される床暖房パネルおよび木質系暖房用フローリングを示す部分断面斜視図である。It is a fragmentary sectional perspective view which shows the floor heating panel and wood type heating flooring which are used for 3rd Embodiment of the heat generation floor structure concerning this invention. 本発明にかかる実施例および比較例の試験結果を示す図表である。It is a graph which shows the test result of the Example concerning this invention, and a comparative example. 図A,図Bは従来例にかかる発熱床構造を示す断面図である。FIGS. A and B are sectional views showing a heat generating floor structure according to a conventional example.

符号の説明Explanation of symbols

20:床暖房パネル
21:基材
22:溝
23:伝熱材
24:パイプ
25:均熱材
30:暖房用フローリング
31:化粧材
32:裏面材
33:基板
40:床暖房パネル
41:基板
42:枠材
43:断熱材
44:発熱線
45:サーモスタット
46:均熱板
20: Floor heating panel 21: Base material 22: Groove 23: Heat transfer material 24: Pipe 25: Heat equalizing material 30: Heating flooring 31: Cosmetic material 32: Back material 33: Substrate 40: Floor heating panel 41: Substrate 42 : Frame material 43: Heat insulating material 44: Heating wire 45: Thermostat 46: Heat equalizing plate

Claims (9)

断熱材と床材とで発熱体を挾持するように積層した発熱床構造において、
前記床材が、鉱物質繊維35〜70重量%、無機粉状体20〜55重量%、および、結合剤5〜25重量%を必須成分とするスラリーを湿式抄造して得られる湿潤マットに熱圧プレスを施して得られた比重0.3〜0.9のセミキュアマットに、希釈された樹脂率10〜60%の樹脂液を含浸させ、熱圧プレスで平均比重1.2〜1.7に調整して得た硬質繊維板を基板とすることを特徴とする発熱床構造。
In the heat generation floor structure laminated so as to hold the heating element with the heat insulating material and the floor material,
The floor material is heated to a wet mat obtained by wet-making a slurry containing 35 to 70% by weight of mineral fibers, 20 to 55% by weight of an inorganic powder, and 5 to 25% by weight of a binder. A semi-cured mat having a specific gravity of 0.3 to 0.9 obtained by pressure pressing is impregnated with a diluted resin solution having a resin ratio of 10 to 60%, and an average specific gravity of 1.2 to 1. A heating floor structure characterized in that a hard fiberboard obtained by adjusting to 7 is used as a substrate.
基板の少なくとも片面に、化粧シートを貼着一体化したことを特徴とする請求項1に記載の発熱床構造。   The heat generating floor structure according to claim 1, wherein a decorative sheet is bonded and integrated on at least one side of the substrate. 発熱体と床材との間に均熱板を積層したことを特徴とする請求項1または2に記載の発熱床構造。   The heat generating floor structure according to claim 1 or 2, wherein a soaking plate is laminated between the heat generating element and the flooring. 断熱材の下面に合板を積層したことを特徴とする請求項1ないし3のいずれか1項に記載の発熱床構造。   The heat generating floor structure according to any one of claims 1 to 3, wherein a plywood is laminated on a lower surface of the heat insulating material. 発熱体が、パイプに暖めた液状熱伝導媒体を充填して流通させるものであることを特徴とする請求項1ないし4のいずれか1項に記載の発熱床構造。   The heating floor structure according to any one of claims 1 to 4, wherein the heating element is a pipe that is filled with a heated liquid heat transfer medium. 発熱体が、電気発熱体であることを特徴とする請求項1ないし4のいずれか1項に記載の発熱床構造。   The heating floor structure according to any one of claims 1 to 4, wherein the heating element is an electric heating element. 床材が、鉱物質繊維の部分的代替物として、耐熱性有機繊維0.5〜15重量%を添加したことを特徴とする請求項1ないし6のいずれか1項に記載の発熱床構造。 The heat generating floor structure according to any one of claims 1 to 6, wherein the flooring material is added with 0.5 to 15% by weight of heat-resistant organic fibers as a partial substitute for mineral fibers. 床材を、スラリー中に顔料を添加して着色したことを特徴とする請求項1ないし7のいずれか1項に記載の発熱床構造。 The heating floor structure according to any one of claims 1 to 7, wherein the floor material is colored by adding a pigment to the slurry. 床材を、樹脂率10〜60%に希釈された樹脂液に顔料または染料を添加して着色したことを特徴とする請求項1ないし8のいずれか1項に記載の発熱床構造。
The heat generating floor structure according to any one of claims 1 to 8, wherein the floor material is colored by adding a pigment or a dye to a resin liquid diluted to a resin ratio of 10 to 60%.
JP2004028137A 2004-02-04 2004-02-04 Heating floor structure Pending JP2005220570A (en)

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Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007255728A (en) * 2006-03-20 2007-10-04 Toyox Co Ltd Heat exchange panel and manufacturing method thereof
JP2007304049A (en) * 2006-05-15 2007-11-22 Hitachi Plant Technologies Ltd Device for measuring collision speed and method of measuring collision
JP2008069545A (en) * 2006-09-13 2008-03-27 Awaji Giken Kk Double-floor structure
JP2009167611A (en) * 2008-01-11 2009-07-30 Awaji Giken Kk Double floor structure
JP2010162915A (en) * 2009-01-13 2010-07-29 Cumberland Japan:Kk Trailer house
JP2012097998A (en) * 2010-11-05 2012-05-24 Tokyo Forming Kk Heater, and method for manufacturing heater
JP2014088019A (en) * 2012-10-02 2014-05-15 Sumitomo Bakelite Co Ltd Laminate and composite

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007255728A (en) * 2006-03-20 2007-10-04 Toyox Co Ltd Heat exchange panel and manufacturing method thereof
JP2007304049A (en) * 2006-05-15 2007-11-22 Hitachi Plant Technologies Ltd Device for measuring collision speed and method of measuring collision
JP2008069545A (en) * 2006-09-13 2008-03-27 Awaji Giken Kk Double-floor structure
JP2009167611A (en) * 2008-01-11 2009-07-30 Awaji Giken Kk Double floor structure
JP4627322B2 (en) * 2008-01-11 2011-02-09 淡路技建株式会社 Double floor structure
JP2010162915A (en) * 2009-01-13 2010-07-29 Cumberland Japan:Kk Trailer house
JP2012097998A (en) * 2010-11-05 2012-05-24 Tokyo Forming Kk Heater, and method for manufacturing heater
JP2014088019A (en) * 2012-10-02 2014-05-15 Sumitomo Bakelite Co Ltd Laminate and composite

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