JPH03247850A - Stone panel - Google Patents

Stone panel

Info

Publication number
JPH03247850A
JPH03247850A JP4329090A JP4329090A JPH03247850A JP H03247850 A JPH03247850 A JP H03247850A JP 4329090 A JP4329090 A JP 4329090A JP 4329090 A JP4329090 A JP 4329090A JP H03247850 A JPH03247850 A JP H03247850A
Authority
JP
Japan
Prior art keywords
stone
resin layer
stones
soft resin
reinforcing material
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP4329090A
Other languages
Japanese (ja)
Inventor
Kiyoshi Okamoto
清 岡本
Hiroshi Imanishi
今西 洋
Akio Kawada
川田 章雄
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Panasonic Electric Works Co Ltd
Original Assignee
Matsushita Electric Works Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Matsushita Electric Works Ltd filed Critical Matsushita Electric Works Ltd
Priority to JP4329090A priority Critical patent/JPH03247850A/en
Publication of JPH03247850A publication Critical patent/JPH03247850A/en
Pending legal-status Critical Current

Links

Landscapes

  • Finishing Walls (AREA)
  • Laminated Bodies (AREA)

Abstract

PURPOSE:To prevent stones from being broken or distorted by backing up the plate-shaped stones formed with natural stones or artificial stones, with a stiffener via a soft resin layer. CONSTITUTION:On the rear surface side of the stone 1 of the natural stone of a marble, granite, or the like, or an artificial stone which is thinly out off, the soft resin layer 2 of sheet-like urethane resin, epoxy resin, or the like is fitted. Then, the rear side surface of the soft resin layer is backed up with the stiffener 3 of an inorganic board, an FRP sheet, or the like. As a result, the stone can be prevented from being broken, notched, or distorted, or generating the like.

Description

【発明の詳細な説明】[Detailed description of the invention] 【産業上の利用分野】[Industrial application field]

本発明は石材に補強材を裏打ちした石材パネルに関する
The present invention relates to a stone panel in which stone is lined with a reinforcing material.

【従来技術】[Prior art]

従来より、石材の美観と耐久性を活用して、建物の内外
壁及び床面に大理石、花崗石等の天然石又は人工石が利
用されているが、石材の強度、石材の加工精度より、厚
みが20〜50mmに限定されでおり、重量、割れ、欠
は等により取り扱いが困難であった。 一方、最近になり石材を薄<(1,0−5,0ml0)
切断する技術が開発されてきているが、強度が弱く、割
れ、欠は等が発生して建材としての使用はできないもの
であった。 このため、薄い石材にFRP、発泡材、金属板、ハニカ
ム等の補強材を裏打ちした石材パネルが提供されている
(特開昭63−222850号公報等)。
Conventionally, natural stones such as marble and granite or artificial stones have been used for the interior and exterior walls and floors of buildings to take advantage of the beauty and durability of stone. The thickness was limited to 20 to 50 mm, and handling was difficult due to weight, cracks, chips, etc. On the other hand, recently, stone materials have become thinner (1,0-5,0ml0).
Although cutting techniques have been developed, its strength is weak and cracks and chips occur, making it impossible to use it as a building material. For this reason, stone panels have been provided in which thin stones are lined with reinforcing materials such as FRP, foamed material, metal plates, honeycomb, etc. (Japanese Unexamined Patent Publication No. 63-222850, etc.).

【発明が解決しようとする課題】[Problem to be solved by the invention]

従来の石材パネルにあっては、石材と補強材の熱膨張率
及び吸湿による伸縮率の差により反りが発生してしまっ
ていた。又、石材と補強材を接着させる接着剤が硬質で
あると、切断する際には微細なりラックが発生してしま
い補強材が剥離してしまったり、石材が屈曲した際には
接着剤層で割れてしまい補強効果がなくなってしまうも
のであった。 本発明は上記事情に鑑みて為されたものであり、その目
的とするところは、全体の厚みを薄くしても、割れ、欠
けが発生することがなく、しかも反りが発生することが
なく、補強材の剥離も防止できる石材パネルを提供する
ことにある。
Conventional stone panels tend to warp due to the difference in thermal expansion coefficient and expansion/contraction rate due to moisture absorption between the stone and the reinforcing material. In addition, if the adhesive used to bond the stone and reinforcement material is hard, fine cracks may occur during cutting, resulting in the reinforcement material peeling off, and when the stone is bent, the adhesive layer may be damaged. It cracked and lost its reinforcing effect. The present invention has been made in view of the above circumstances, and its purpose is to prevent cracking, chipping, and warping even when the overall thickness is reduced. It is an object of the present invention to provide a stone panel that can also prevent peeling of reinforcing materials.

【課題を解決するための手段】[Means to solve the problem]

本発明の石材パネルは、天然石又は人造石からなる板状
の石材1に軟質の樹脂層2を介して補強材3を裏打ちし
て成るものであり、この構成により上記課題が解決され
たものである。 [作用1 石材1を薄くしても補強材3により補強されて割れ、欠
は等が発生することがなく、しかも軟質の樹脂層2を介
して補強材3を裏打ちしているので、反りが発生するこ
とがなく、又、切断に際しても樹脂層2にクラックが発
生して補強材3が剥離することなどないものである。 以下本発明の詳細な説明する。 石材1は大理石、花崗石等の天然石又は人工石が薄< 
(1,0〜5.0IlILe程度)切断されたものが採
用される。この石材1の裏面側に軟質の樹脂層2を介し
て補強材3が裏打ちされて石材パネルAが構成されてい
る。軟質の樹脂層2としては硬度が25〜90(シタア
ーA)、好ましくは30〜80、伸びが50%以上、好
ましくは100%以上、厚みが0.05〜1.0mの、
好ましくは0.10〜0゜5111+6のものであり、
tレタン樹脂、エポキシ樹脂、ポリエステル樹脂、アク
リル樹脂からなる接着剤とかシート状が使用される。な
かでも、ウレタン樹脂が低温での硬化特性、伸度も大き
くて凍結融解時に優れた特性を示して好ましい。補強材
3としては無機ボード、木質ボード、FRPシート、金
属板、ハニカム等が挙げられるが、強度面及び熱膨張率
の点より薄くて、強度の大きいものが好ましく、この点
でFRPシートが好適に採用される。 このFRPシートは強度が大ぎいだけでなく、透明であ
るため、色付けが簡便であり、光硬化性の接着剤を使用
でき、又、照明カバーにも採用できるものであり、更に
、切断が容易で膨張率が石材1に近くて反りの抑制にも
大さく寄与できるものである。尚、プリプレグ化したF
RPシートであれば、硬化時の収縮により石材パネルA
の反り、接着不良の原因となる。 次に、本発明の詳細な説明する。 (実施例) 400X400X7tの白御影石である石材に一液ウレ
タンを200g/m2塗布し、3kg/cm”の圧力に
て24時間プレスしてFRPシート(1,0+ea+厚
、ポリエステル樹脂、ガラスamから構成)を貼着した
。このものを、研摩し、寸法カット、面取りをして石材
パネルを製造した。 この石材パネルはグイヤモンド力ッターでの切断にもク
ラックが発生してFRPシートが剥離するなどなく、曲
げ強度(JIS^5209)は45.3k)(/c曽2
と以下の比較例のものよりも大きかった。 (比較例) 接着剤として一液ウレタンの代わりに硬質ウレタンを使
用した以外は実施例と同様にして石材パネルを製造した
。この石材パネルの曲げ強度は32 、5 kB/ c
m2であった。
The stone panel of the present invention is made by backing a plate-shaped stone 1 made of natural stone or artificial stone with a reinforcing material 3 via a soft resin layer 2, and this structure solves the above problems. be. [Function 1: Even if the stone 1 is made thinner, it will be reinforced by the reinforcing material 3 and will not crack or chip. Furthermore, since the reinforcing material 3 is lined with the soft resin layer 2, it will not warp. Furthermore, even during cutting, cracks will not occur in the resin layer 2 and the reinforcing material 3 will not peel off. The present invention will be explained in detail below. Stone material 1 is a thin natural stone or artificial stone such as marble or granite.
(about 1.0 to 5.0 IlILe) is used. A reinforcing material 3 is lined on the back side of the stone 1 with a soft resin layer 2 interposed therebetween, thereby forming a stone panel A. The soft resin layer 2 has a hardness of 25 to 90 (Ster A), preferably 30 to 80, an elongation of 50% or more, preferably 100% or more, and a thickness of 0.05 to 1.0 m.
Preferably it is from 0.10 to 0°5111+6,
Adhesives or sheets made of t-rethane resin, epoxy resin, polyester resin, or acrylic resin are used. Among these, urethane resins are preferred because they have high curing properties at low temperatures, high elongation, and exhibit excellent properties during freeze-thaw. Examples of the reinforcing material 3 include inorganic boards, wooden boards, FRP sheets, metal plates, honeycombs, etc., but in terms of strength and coefficient of thermal expansion, those that are thin and have high strength are preferable, and FRP sheets are preferred in this respect. will be adopted. This FRP sheet is not only strong but also transparent, so it is easy to color, can be used with light-curing adhesives, can be used for lighting covers, and is easy to cut. The expansion coefficient is close to that of Stone 1, and it can greatly contribute to suppressing warpage. In addition, prepreg F
If it is an RP sheet, the stone panel A will be damaged due to shrinkage during curing.
This may cause warping and poor adhesion. Next, the present invention will be explained in detail. (Example) A 400 x 400 x 7 t white granite stone is coated with 200 g/m2 of one-component urethane and pressed at a pressure of 3 kg/cm for 24 hours to produce an FRP sheet (1,0+ea+thickness, composed of polyester resin and glass am). ) was pasted. This material was polished, cut to size, and chamfered to produce a stone panel. This stone panel could be cut with a Guyamond force cutter without any cracks or peeling of the FRP sheet. , bending strength (JIS^5209) is 45.3k) (/c so2
was larger than that of the comparative example below. (Comparative Example) A stone panel was manufactured in the same manner as in the example except that hard urethane was used as the adhesive instead of one-component urethane. The bending strength of this stone panel is 32,5 kB/c
It was m2.

【発明の効果】【Effect of the invention】

本発明にあっては、天然石又は人造石からなる板状の石
材に軟質の樹脂層を介して補強材を裏打ちしているので
、石材を薄くしても補強材により補強されて割れ、欠は
等が発生することがなく、しかも軟質の樹脂層を介して
補強材を裏打ちしているので、石材と補強材の熱膨張率
及び吸湿による伸縮率の差を軟質の樹脂層により吸収で
き、反りが発生することがないものであり、又、切断に
際しても樹脂層にクラックが発生して補強材が剥離する
ことなどないものである。
In the present invention, a plate-shaped stone made of natural stone or artificial stone is lined with a reinforcing material through a soft resin layer, so even if the stone is thinned, it will be reinforced by the reinforcing material and will not crack or break. Moreover, since the reinforcing material is lined with a soft resin layer, the difference in thermal expansion coefficient and expansion/contraction rate due to moisture absorption between the stone and the reinforcing material can be absorbed by the soft resin layer, preventing warping. Furthermore, even when cutting, cracks will not occur in the resin layer and the reinforcing material will not peel off.

【図面の簡単な説明】[Brief explanation of drawings]

第1図は本発明の一実施例を示す概略断面図であって、
Aは石材パネル、1は石材、2は樹脂層、3は補強材で
ある。
FIG. 1 is a schematic sectional view showing an embodiment of the present invention,
A is a stone panel, 1 is a stone, 2 is a resin layer, and 3 is a reinforcing material.

Claims (1)

【特許請求の範囲】[Claims] (1)天然石又は人造石からなる板状の石材に軟質の樹
脂層を介して補強材を裏打ちして成ることを特徴とする
石材パネル。
(1) A stone panel characterized in that it is made by lining a plate-shaped stone made of natural stone or artificial stone with a reinforcing material via a soft resin layer.
JP4329090A 1990-02-23 1990-02-23 Stone panel Pending JPH03247850A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4329090A JPH03247850A (en) 1990-02-23 1990-02-23 Stone panel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4329090A JPH03247850A (en) 1990-02-23 1990-02-23 Stone panel

Publications (1)

Publication Number Publication Date
JPH03247850A true JPH03247850A (en) 1991-11-06

Family

ID=12659670

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4329090A Pending JPH03247850A (en) 1990-02-23 1990-02-23 Stone panel

Country Status (1)

Country Link
JP (1) JPH03247850A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007162384A (en) * 2005-12-15 2007-06-28 Konoshima Chemical Co Ltd Facing method for building, and its surface material
CN107268927A (en) * 2017-07-31 2017-10-20 罗汉平 A kind of soft stone

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63247455A (en) * 1987-03-31 1988-10-14 マツクストン株式会社 Lining reinforcing ultrathin stone panel

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63247455A (en) * 1987-03-31 1988-10-14 マツクストン株式会社 Lining reinforcing ultrathin stone panel

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007162384A (en) * 2005-12-15 2007-06-28 Konoshima Chemical Co Ltd Facing method for building, and its surface material
CN107268927A (en) * 2017-07-31 2017-10-20 罗汉平 A kind of soft stone

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