JP5921103B2 - Laminated glass and translucent soundproof panel - Google Patents

Laminated glass and translucent soundproof panel Download PDF

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Publication number
JP5921103B2
JP5921103B2 JP2011159851A JP2011159851A JP5921103B2 JP 5921103 B2 JP5921103 B2 JP 5921103B2 JP 2011159851 A JP2011159851 A JP 2011159851A JP 2011159851 A JP2011159851 A JP 2011159851A JP 5921103 B2 JP5921103 B2 JP 5921103B2
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Prior art keywords
glass
laminated glass
thickness
chemically strengthened
road
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JP2013023912A (en
Inventor
山本　健次郎
健次郎 山本
康秀 高木
康秀 高木
三郎 伊勢谷
三郎 伊勢谷
和久井　智
智 和久井
優 白田
優 白田
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Nippon Steel Metal Products Co Ltd
Asahi Building Wall Co Ltd
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Nippon Steel Metal Products Co Ltd
Asahi Building Wall Co Ltd
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Priority to JP2011159851A priority Critical patent/JP5921103B2/en
Priority to CN201280035687.1A priority patent/CN103827395B/en
Priority to MYPI2014000156A priority patent/MY170281A/en
Priority to PCT/JP2012/068375 priority patent/WO2013012044A1/en
Priority to TW101126351A priority patent/TWI564254B/en
Publication of JP2013023912A publication Critical patent/JP2013023912A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
    • B32B17/10128—Treatment of at least one glass sheet
    • B32B17/10137—Chemical strengthening
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/10009—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets
    • B32B17/10036—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the number, the constitution or treatment of glass sheets comprising two outer glass sheets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
    • B32B17/10761—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing vinyl acetal
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B17/00—Layered products essentially comprising sheet glass, or glass, slag, or like fibres
    • B32B17/06—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material
    • B32B17/10—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin
    • B32B17/10005—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing
    • B32B17/1055—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer
    • B32B17/10788—Layered products essentially comprising sheet glass, or glass, slag, or like fibres comprising glass as the main or only constituent of a layer, next to another layer of a specific material of synthetic resin laminated safety glass or glazing characterized by the resin layer, i.e. interlayer containing ethylene vinylacetate
    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01F—ADDITIONAL WORK, SUCH AS EQUIPPING ROADS OR THE CONSTRUCTION OF PLATFORMS, HELICOPTER LANDING STAGES, SIGNS, SNOW FENCES, OR THE LIKE
    • E01F8/00—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic
    • E01F8/0005—Arrangements for absorbing or reflecting air-transmitted noise from road or railway traffic used in a wall type arrangement
    • E01F8/0017—Plate-like elements

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Devices Affording Protection Of Roads Or Walls For Sound Insulation (AREA)
  • Joining Of Glass To Other Materials (AREA)
  • Laminated Bodies (AREA)

Description

本発明は、道路の路側に沿って配置される透光性防音パネルに関し、更に詳しくは、化学強化ガラスで構成される合せガラスを使用した透光性防音パネルに関する。   The present invention relates to a translucent soundproof panel disposed along a road side of a road, and more particularly to a translucent soundproof panel using a laminated glass composed of chemically strengthened glass.

従来より、道路の路側に防音パネルを配置して、交通騒音などを低減することが行われている。防音パネルに求められる特性として、遮音性を有することは勿論、運転者の圧迫感を減らすことや、近隣住民への日照確保のために、透光性が求められている。このような透光性を有する防音パネルとして、アクリル樹脂やポリカーボネート樹脂等の透明樹脂板が従来より用いられている。しかしながら、透明樹脂板の場合、紫外線劣化による黄変、静電気発生による自動車排気ガス中の煤や埃の付着、あるいは表面硬度不足による傷つき等の理由による透視性、あるいは透明性の低下する問題があった。また、清掃作業を行っても透視性、透明性を回復させるのが難しい問題があった。また、表面に凹凸があり、且つ剛性が低いためにたわみやすく、透視映像、反射映像がゆがむ問題があった。また、車両火災による類焼や熔融によって民地側に落下する問題などを有していた。   Conventionally, a noise insulation panel is arranged on the road side to reduce traffic noise and the like. As a characteristic required for a soundproof panel, not only it has sound insulation, but also light transmission is required to reduce the driver's feeling of pressure and to secure sunshine to neighboring residents. As such a soundproof panel having translucency, a transparent resin plate such as an acrylic resin or a polycarbonate resin has been conventionally used. However, in the case of a transparent resin plate, there is a problem that transparency or transparency is lowered due to yellowing due to ultraviolet deterioration, adhesion of soot and dust in automobile exhaust gas due to generation of static electricity, or damage due to insufficient surface hardness. It was. In addition, there is a problem that it is difficult to restore transparency and transparency even after cleaning work. Further, there is a problem that the surface is uneven and the rigidity is low, so that it is easily bent and the fluoroscopic image and the reflected image are distorted. In addition, there was a problem of falling to the private side due to burning or melting due to a vehicle fire.

また、近年では、合せガラスを防音パネルに用いる試みが検討されている。   In recent years, attempts to use laminated glass for soundproofing panels have been studied.

特許文献１には、板厚３ｍｍの２枚のフロートガラスと、これらフロートガラス間に介在させた０．７５ｍｍの中間膜により接着した合せガラスからなる防音パネルが開示されている。   Patent Document 1 discloses a soundproof panel composed of two float glasses having a thickness of 3 mm and a laminated glass bonded by a 0.75 mm intermediate film interposed between the float glasses.

また、特許文献２，３には、金属製の繊材を埋設した板ガラスを用いた合せガラスを、道路用透光性パネルに用いることが開示されている。   Patent Documents 2 and 3 disclose that laminated glass using a plate glass in which a metal fiber material is embedded is used for a translucent panel for roads.

実公平７−１５８５４号公報No. 7-15854 特開２００７−１６９９５７号公報JP 2007-169957 A 特開２０１０−２３６２２１号公報JP 2010-236221 A

透光性防音パネルの素材にガラスを用いた場合、硬くて脆いというガラスの特性を考慮して、破損時に飛散するガラス片を小さくし、できるだけ周囲に飛散しないようにして、近隣住宅等に対する安全性を高める必要がある。   When glass is used as the material of the translucent soundproof panel, considering the characteristics of the glass that it is hard and brittle, the glass pieces scattered at the time of breakage are made small so as not to be scattered around as much as possible, and it is safe for neighboring houses etc. It is necessary to increase sex.

しかしながら、フロートガラスからなる合せガラスの場合、車両衝突や投石などにより衝撃が加わって破損すると、大きなガラス片が飛散し易く、周囲へ被害をもたらすおそれがあった。また、強度的に問題があり、実用に適した耐風圧性、耐衝撃性、耐燃焼性等の特性を得るためには、使用するガラス板の厚さを厚くする必要があった。このため、防音パネル全体の重量が嵩み、施工性が劣る問題があった。   However, in the case of laminated glass made of float glass, when an impact is applied to the laminated glass and it is broken due to a vehicle collision or throwing stones, a large piece of glass tends to scatter and may cause damage to the surroundings. Further, there is a problem in strength, and in order to obtain characteristics such as wind pressure resistance, impact resistance, and combustion resistance suitable for practical use, it is necessary to increase the thickness of the glass plate to be used. For this reason, there existed a problem that the weight of the whole soundproof panel increased and the workability was inferior.

一方、金属製の繊材を埋設した網入り板ガラスを用いた合せガラスの場合、埋設された金属製の繊材によって、破損後のガラス破片の落下が防止されるという利点がある。   On the other hand, in the case of laminated glass using a meshed plate glass in which a metal fiber material is embedded, there is an advantage that the glass fiber fragment after the breakage is prevented by the embedded metal fiber material.

しかしながら、網入り板ガラスはフロートガラスよりも強度が低いために、フロートガラス同様の問題を有しており、重量が嵩み、施工性が劣るものであった。また、ガラス周端部の防錆処理が衰えると、雨水などの影響によりガラス端部に露出した繊材の切断面に錆が発生し、その錆がガラス内部まで進行して内部に埋設された繊材が膨張し、ガラスにひびや割れが生じることがあった。更にまた、埋設された繊材によって透光性が損なわれる。   However, the netted plate glass has the same problems as the float glass because the strength is lower than that of the float glass, the weight is increased, and the workability is inferior. In addition, when the rust prevention treatment at the glass peripheral edge declines, rust is generated on the cut surface of the fiber exposed at the glass edge due to the influence of rainwater, etc., and the rust advances to the inside of the glass and is embedded inside The fiber material expanded and sometimes cracked or cracked in the glass. Furthermore, translucency is impaired by the embedded fiber material.

よって、本発明の目的は、耐熱性及び耐風圧性に優れ、破損時におけるガラス片を縮小できる合せガラス及び安全性に優れた透光性防音パネルを提供することにある。   Accordingly, an object of the present invention is to provide a laminated glass that is excellent in heat resistance and wind pressure resistance, can reduce a glass piece at the time of breakage, and a translucent soundproof panel excellent in safety.

上記目的を達成するため、本発明の合せガラスは、道路の路側に沿って配置される透光性防音パネルに用いられる合せガラスであって、前記合せガラスは、道路の外側に配置される第１の化学強化ガラスと、道路の内側に配置される第２の化学強化ガラスとを、中間膜を介して貼り合せて構成され、前記第１の化学強化ガラスの厚みが１．５〜４ｍｍであり、前記第２の化学強化ガラスの厚みが１．５ｍｍ以上であり、前記中間膜の厚みが６．０ｍｍ以下であることを特徴とする。   In order to achieve the above object, a laminated glass of the present invention is a laminated glass used for a translucent soundproof panel arranged along a road side of a road, and the laminated glass is disposed on the outside of a road. 1 chemically tempered glass and a second chemically tempered glass disposed on the inside of the road are bonded together through an intermediate film, and the thickness of the first chemically tempered glass is 1.5 to 4 mm. And the thickness of the second chemically strengthened glass is 1.5 mm or more, and the thickness of the intermediate film is 6.0 mm or less.

本発明の合せガラスは、前記化学強化ガラスの表面圧縮応力が３５０ＭＰａ以上であることが好ましい。   In the laminated glass of the present invention, the chemically tempered glass preferably has a surface compressive stress of 350 MPa or more.

本発明の合せガラスは、前記中間膜の厚みが１．５〜３．１ｍｍであることが好ましい。   In the laminated glass of the present invention, the interlayer film preferably has a thickness of 1.5 to 3.1 mm.

本発明の合せガラスは、前記中間膜が、ビニル系ポリマー、エチレン-ビニル系モノマー共重合体、スチレン系共重合体、ポリウレタン樹脂、フッ素樹脂及びアクリル樹脂から選ばれる一種以上で構成されていることが好ましく、ビニル系ポリマー及び／又はエチレン-ビニル系モノマー共重合体で構成されていることがより好ましい。   In the laminated glass of the present invention, the interlayer film is composed of at least one selected from a vinyl polymer, an ethylene-vinyl monomer copolymer, a styrene copolymer, a polyurethane resin, a fluororesin, and an acrylic resin. Is preferable, and is more preferably composed of a vinyl polymer and / or an ethylene-vinyl monomer copolymer.

また、本発明の透光性防音パネルは、道路の路側に沿って配置される透光性防音パネルであって、上記合せガラスと、該合せガラスの周辺を囲む金属枠とを備えることを特徴とする。   Further, the translucent soundproof panel of the present invention is a translucent soundproof panel arranged along the road side of the road, comprising the laminated glass and a metal frame surrounding the laminated glass. And

本発明の合せガラスは、道路の外側に配置される第１の化学強化ガラスと、道路の内側に配置される第２の化学強化ガラスとを、中間膜を介して貼り合せて構成され、第１の化学強化ガラスの厚みが１．５〜４ｍｍであり、第２の化学強化ガラスの厚みが１．５ｍｍ以上であり、中間膜の厚みが６．０ｍｍ以下であるので、道路の内側から衝撃が加わって道路の内側に配置される第２のガラス板が破損しても、その破片は、中間膜や、第１の化学ガラス板によって、道路の外側への飛散が抑制される。また、化学強化ガラスの特性として、破損時に飛散するガラス破片が小片となるので、仮にガラス片が周囲に飛散したとしても、飛散するガラス片をより小さくできる。   The laminated glass of the present invention is formed by laminating a first chemically strengthened glass disposed outside the road and a second chemically strengthened glass disposed inside the road via an intermediate film, The thickness of the first chemically strengthened glass is 1.5 to 4 mm, the thickness of the second chemically strengthened glass is 1.5 mm or more, and the thickness of the intermediate film is 6.0 mm or less. Even if the second glass plate disposed inside the road is damaged due to the added, the fragments are prevented from being scattered outside the road by the intermediate film or the first chemical glass plate. In addition, as a characteristic of chemically strengthened glass, glass fragments scattered at the time of breakage become small pieces, so even if the glass pieces are scattered around, the scattered glass pieces can be made smaller.

また、この合せガラスは、両面が化学強化ガラスで構成されているので、強度があり、合せガラス全体の厚みが薄くても充分な耐風圧性が得られ、軽量化が可能である。更には、化学強化ガラスは、高温に曝されても、化学強化ガラスの表面圧縮応力が、熱膨張を抑制するように作用するので、熱割れが生じ難く、燃焼時におけるガラスの脱落や落下を防止でき、安全性に優れる。   Further, since this laminated glass is made of chemically strengthened glass on both sides, it has strength, and even if the thickness of the entire laminated glass is thin, sufficient wind pressure resistance can be obtained and the weight can be reduced. Furthermore, even when chemically tempered glass is exposed to high temperatures, the surface compressive stress of chemically tempered glass acts to suppress thermal expansion, so that thermal cracking is unlikely to occur and the glass is not dropped or dropped during combustion. It can be prevented and has excellent safety.

そして、本発明の防音パネルは、上記合せガラスの周辺を金属枠で囲ってなるものであるので、合せガラスをしっかりと保持して路側に配設することができる。また、道路の内側から衝撃が加わって合せガラスが割れても、中間膜によって道路の外側へのガラス片の飛散を抑制でき、仮にガラス片が飛散したとしても、そのガラス片をより小さくできるので、安全性に優れる。   And since the soundproof panel of this invention encloses the periphery of the said laminated glass with a metal frame, it can hold | maintain a laminated glass firmly and can be arrange | positioned on the road side. In addition, even if the laminated glass breaks due to an impact from the inside of the road, the interlayer can suppress the scattering of the glass piece to the outside of the road, and even if the glass piece is scattered, the glass piece can be made smaller Excellent safety.

本発明の透光性防音パネルの概略図である。It is the schematic of the translucent soundproof panel of this invention. 図１のＡ−Ａ断面図である。It is AA sectional drawing of FIG. 本発明の透光性防音パネルの取付け構造体の概略図である。It is the schematic of the mounting structure of the translucent soundproof panel of this invention. 同透光性防音パネルの取付け構造体の平面図である。It is a top view of the mounting structure of the translucent soundproof panel. 図４のＢ−Ｂ断面図である。It is BB sectional drawing of FIG. 図４のＣ−Ｃ断面図である。It is CC sectional drawing of FIG. 衝突性試験で使用した金属球の説明図である。It is explanatory drawing of the metal sphere used by the collision test.

本発明の合せガラスは、道路の路側に沿って配置される透光性防音パネルに用いられる合せガラスであって、道路の外側に配置される第１の化学強化ガラスと、道路の内側に配置される第２の化学強化ガラスとを、中間膜を介して貼り合せて構成されている。   The laminated glass of the present invention is a laminated glass used for a translucent soundproof panel disposed along the road side of the road, and is disposed on the inner side of the first chemically strengthened glass disposed on the outer side of the road. The second chemically tempered glass is bonded through an intermediate film.

まず、化学強化ガラスについて説明する。化学強化ガラスは、イオン交換法等の方法により、ガラス表面の小さなイオン半径のアルカリ金属原子が、大きなイオン半径のアルカリ金属原子に置き換えられる（例えば、ガラス表面のリチウム原子及び／又はナトリウム原子が、カリウム原子に置き換えられる）ことにより、ガラス表面層に大きな圧縮応力が付与されたものであって、フロートガラス等の非強化ガラス板、あるいは風冷法により強化されたガラス板（風冷強化ガラス）と比較して強度が高められ、容易に割れないものとなっている。また、本発明者らは、化学強化ガラスによって、破損時におけるガラス片を小さくできることを見出した。この理由としては、ガラスは破壊する際に、ガラスに与えられた破壊のエネルギーが表面形成（破断面形成）のエネルギーに変換して、多くの表面（破断面）を形成するように作用する。化学強化ガラスの表面圧縮応力を大きくすると、ガラスの破壊のエネルギーが増すので、それに応じて、表面形成のエネルギーも大きくなり、その分、表面積を大きくするために、ガラス破片がさらに小さくなると推測される。   First, chemically strengthened glass will be described. In the chemically strengthened glass, alkali metal atoms having a small ion radius on the glass surface are replaced with alkali metal atoms having a large ion radius by a method such as an ion exchange method (for example, lithium atoms and / or sodium atoms on the glass surface are A glass plate with a large compressive stress applied to the glass surface layer by being replaced with potassium atoms, and a non-tempered glass plate such as float glass, or a glass plate tempered by an air-cooling method (air-cooled tempered glass) The strength is increased as compared with the above, and it is not easily broken. Moreover, the present inventors have found that the glass piece at the time of breakage can be made small by chemically strengthened glass. The reason for this is that when the glass breaks, the breaking energy applied to the glass is converted into energy for surface formation (fracture surface formation), and acts to form many surfaces (fracture surfaces). Increasing the surface compressive stress of chemically strengthened glass increases the energy of fracture of the glass. Accordingly, the energy of surface formation increases accordingly, and in order to increase the surface area, it is assumed that the glass fragments are further reduced. The

本発明の合せガラスに用いる化学強化ガラスは、表面圧縮応力が３５０ＭＰａ以上であることが好ましく、３７０〜４５０ＭＰａが特に好ましい。化学強化ガラスの表面圧縮応力が３５０ＭＰａ未満であると、強度的に劣り、十分な耐風圧性を得ようとした場合、ガラス厚を厚くする必要があり重量が嵩む。更には、破損時に飛散するガラス片が大きくなり易い。化学強化ガラスの表面圧縮応力が４５０ＭＰａを超えると、表面の圧縮応力層と、内部の引張応力層とのバランスが劣り、わずかな歪で破壊し易くなることがある。なお、本発明において、表面圧縮応力は、表面応力測定器にて測定した値である。   The chemically strengthened glass used for the laminated glass of the present invention preferably has a surface compressive stress of 350 MPa or more, particularly preferably 370 to 450 MPa. When the surface compressive stress of the chemically strengthened glass is less than 350 MPa, the strength is inferior, and when trying to obtain sufficient wind pressure resistance, it is necessary to increase the glass thickness and increase the weight. Furthermore, the glass pieces scattered when broken are likely to be large. When the surface compressive stress of the chemically strengthened glass exceeds 450 MPa, the balance between the surface compressive stress layer and the internal tensile stress layer is inferior, and it may be easily broken by a slight strain. In the present invention, the surface compressive stress is a value measured with a surface stress measuring device.

化学強化ガラスは、例えば以下のようにして製造することができる。すなわち、汎用的なソーダライムシリケートガラスなどのフロートガラス板を、熔融したカリウム塩に浸漬する。それによって、ガラス組成中のリチウムイオン、あるいは、ナトリウムイオンが、イオン半径の大きなカリウムイオンに置換される。これにより、カリウムイオンによって増加する体積分だけ圧縮応力が生じ、表面圧縮応力が向上する。   The chemically strengthened glass can be produced, for example, as follows. That is, a float glass plate such as a general-purpose soda lime silicate glass is immersed in the molten potassium salt. Thereby, lithium ions or sodium ions in the glass composition are replaced with potassium ions having a large ion radius. Thereby, a compressive stress is generated by the volume which is increased by potassium ions, and the surface compressive stress is improved.

カリウム塩としては、たとえば硝酸カリウム、硫酸カリウム、重硫酸カリウム、炭酸カリウム、重炭酸カリウム、塩化カリウム等が挙げられる。   Examples of the potassium salt include potassium nitrate, potassium sulfate, potassium bisulfate, potassium carbonate, potassium bicarbonate, potassium chloride and the like.

溶融温度は、カリウム塩の種類により異なる。例えば、硝酸カリウムの場合、好ましくは３５０〜５００℃であり、より好ましくは３７０〜４８０℃であり、特に好ましくは４５０〜４８０℃である。３５０℃未満であると、化学強化処理を行う時間が長くなり、生産性に劣る。一方、熔融温度を上げると、化学強化処理時間は短縮されるが、５００℃を超えても、化学強化処理時間は大幅に短縮されず、使用するカリウム塩の種類によっては、有害なガスを発生し作業環境を損なう場合がある。   The melting temperature varies depending on the type of potassium salt. For example, in the case of potassium nitrate, it is preferably 350 to 500 ° C, more preferably 370 to 480 ° C, and particularly preferably 450 to 480 ° C. When the temperature is lower than 350 ° C., the time for performing the chemical strengthening treatment becomes long and the productivity is poor. On the other hand, when the melting temperature is raised, the chemical strengthening treatment time is shortened, but even if it exceeds 500 ° C, the chemical strengthening treatment time is not significantly shortened, and depending on the type of potassium salt used, harmful gas is generated. However, the work environment may be impaired.

浸漬時間は、フロートガラス板の厚み、得られる化学強化ガラスの表面圧縮応力により異なるので特に限定はしない。例えば、厚さ３〜６ｍｍのフロートガラス板を用いて、表面圧縮応力３７０〜４５０ＭＰａの化学強化ガラスを得る場合、４５０〜５００℃の溶融した硝酸カリウム中に、１〜５時間、好ましくは２〜４時間浸漬すればよい。   The immersion time is not particularly limited because it varies depending on the thickness of the float glass plate and the surface compressive stress of the chemically strengthened glass obtained. For example, when a chemically tempered glass having a surface compressive stress of 370 to 450 MPa is obtained using a float glass plate having a thickness of 3 to 6 mm, the molten potassium nitrate at 450 to 500 ° C. is used for 1 to 5 hours, preferably 2 to 4 hours. What is necessary is just to immerse for time.

本発明の合せガラスにおいて、第１の化学強化ガラスは、厚みが１．５〜４ｍｍであることが必要であり、２〜４ｍｍがより好ましい。厚みが１．５ｍｍ未満であると、防音性や耐風圧性が劣る傾向にある。４ｍｍを超えると、破損時に飛散するガラス片が大きくなり、安全性が損なわれる傾向にある。   In the laminated glass of the present invention, the first chemically strengthened glass needs to have a thickness of 1.5 to 4 mm, and more preferably 2 to 4 mm. If the thickness is less than 1.5 mm, soundproofing and wind pressure resistance tend to be inferior. When it exceeds 4 mm, the glass piece scattered at the time of breakage becomes large, and the safety tends to be impaired.

本発明の合せガラスにおいて、第２の化学強化ガラスは、厚みが１．５ｍｍ以上であることが必要であり、２〜８ｍｍがより好ましい。厚みが１．５ｍｍ未満であると、防音性や耐風圧性が劣る傾向にある。１０ｍｍを超えても、材料コストが嵩み経済的でないとともに、重量が重くなるので透光性防音パネルの施工性が低下する傾向である。   In the laminated glass of the present invention, the second chemically strengthened glass needs to have a thickness of 1.5 mm or more, and more preferably 2 to 8 mm. If the thickness is less than 1.5 mm, soundproofing and wind pressure resistance tend to be inferior. Even if it exceeds 10 mm, the material cost increases and it is not economical, and the weight increases, so the workability of the translucent soundproof panel tends to deteriorate.

本発明の合せガラスにおいて、中間膜は、熱可塑性樹脂、熱硬化性樹脂、紫外線硬化性樹脂等で構成されており、ビニル系ポリマー、エチレン-ビニル系モノマー共重合体、スチレン系共重合体、ポリウレタン樹脂、フッ素樹脂及びアクリル樹脂から選ばれる１種以上で構成されていることが好ましい。なかでも、経済性および、製造工程での加工性に優れているという理由から、ビニル系ポリマー及び／又はエチレン−ビニル系モノマー共重合体がより好ましい。   In the laminated glass of the present invention, the intermediate film is composed of a thermoplastic resin, a thermosetting resin, an ultraviolet curable resin, etc., and is a vinyl polymer, an ethylene-vinyl monomer copolymer, a styrene copolymer, It is preferably composed of one or more selected from polyurethane resins, fluororesins and acrylic resins. Of these, vinyl polymers and / or ethylene-vinyl monomer copolymers are more preferred because of their excellent economic efficiency and processability in the production process.

本発明の合せガラスにおいて、中間膜の厚みは、６ｍｍ以下であることが必要であり、１．５〜６．０ｍｍが好ましく、１．５〜３．１ｍｍがより好ましい。中間膜の厚みが６ｍｍを超えると、合せガラスとしての強度は向上するものの、衝撃時における合せガラスのたわみが小さく、衝撃エネルギーが分散され難くいので、加撃点に大きな力が加わり易い。このため、大きなガラス片が遠方まで飛散して、周囲の安全性を損なうおそれがある。中間膜の厚みを６ｍｍ以下にすることで、仮にガラス片が飛散したとしても、加撃点から亀裂を発生させながらガラスが大きくたわむので、加撃点からガラスに亀裂が入って合せガラスに加わった衝撃エネルギーを分散でき、ガラス片が遠くまで飛散し難くなり、更には、飛散するガラス片のサイズが小さくなる。特に中間膜の厚みを１．５〜３．１ｍｍとすることで、ガラス片の飛散距離がより短くなり、かつ、飛散するガラス片のサイズがより小さくなる。   In the laminated glass of the present invention, the thickness of the interlayer film needs to be 6 mm or less, preferably 1.5 to 6.0 mm, and more preferably 1.5 to 3.1 mm. If the thickness of the interlayer film exceeds 6 mm, the strength as a laminated glass is improved, but the deflection of the laminated glass at the time of impact is small and the impact energy is difficult to disperse, so that a large force is easily applied to the impact point. For this reason, there is a possibility that a large piece of glass is scattered far away and the safety of the surroundings is impaired. By setting the thickness of the interlayer film to 6 mm or less, even if the glass pieces are scattered, the glass is greatly bent while generating cracks from the impact point, so the glass cracks from the impact point and joins the laminated glass. It is possible to disperse the impact energy, and it becomes difficult for the glass pieces to scatter far away, and the size of the scattered glass pieces becomes smaller. In particular, by setting the thickness of the intermediate film to 1.5 to 3.1 mm, the scattering distance of the glass pieces becomes shorter and the size of the scattered glass pieces becomes smaller.

本発明の合せガラスは、例えば以下のようにして製造することができる。   The laminated glass of this invention can be manufactured as follows, for example.

すなわち、１枚目の化学強化ガラスの上に、シート状の中間膜材料を置き、その上に２枚目の化学強化ガラスを重ね合せ、ロールプレス法などにより加熱下で予備圧着させた後、１〜１２気圧、１２０〜１６０℃のオートクレーブ中で本圧着を行い、２枚の化学強化ガラスを中間膜材料で接着させる方法や、２枚の化学強化ガラスの間に間隙を設け、その間隙に中間膜材料として、液状の紫外線硬化性組成物を注入し、紫外線を照射して中間膜材料を硬化させて中間膜を形成し、２枚の化学強化ガラスを接着させる方法などがある。   That is, a sheet-like interlayer film material is placed on the first chemically strengthened glass, and the second chemically strengthened glass is overlaid on the first chemically strengthened glass. A method in which main pressure bonding is performed in an autoclave at 1 to 12 atmospheres and 120 to 160 ° C., and two chemically strengthened glasses are bonded with an intermediate film material, or a gap is provided between the two chemically strengthened glasses. As an interlayer film material, there is a method of injecting a liquid ultraviolet curable composition, irradiating ultraviolet rays to cure the interlayer film material to form an interlayer film, and bonding two chemically strengthened glasses.

本発明の合せガラスの厚み（第１の化学強化ガラスの厚みと、中間膜の厚みと、第２の化学強化ガラスの厚みとの合計）は、４．５〜２０ｍｍが好ましく、５．５〜１５．１ｍｍがより好ましい。４．５ｍｍ未満であると、所望とする防音性に満たなかったり、強度が不足するために、例えば、防音壁の支柱間隔が２ｍ以上ある場合に適用する幅方向長さ２ｍ以上の、大きな寸法の透光性防音パネルには適さないことがある。一方、１５．１ｍｍを超えると、コストアップになり、重量（質量）が嵩み、施工性に欠ける場合がある。   The thickness of the laminated glass of the present invention (the total of the thickness of the first chemically strengthened glass, the thickness of the intermediate film, and the thickness of the second chemically strengthened glass) is preferably 4.5 to 20 mm, preferably 5.5 to 5.5 mm. 15.1 mm is more preferable. If it is less than 4.5 mm, the desired soundproofness is not achieved, or the strength is insufficient. For example, a large dimension of 2 m or more in the width direction applied when the interval between the columns of the soundproof wall is 2 m or more. May not be suitable for translucent soundproof panels. On the other hand, if it exceeds 15.1 mm, the cost increases, the weight (mass) increases, and the workability may be lacking.

なお、本発明における合せガラスの単位面積当たりの重量とは、中間膜の重量は含めずに、第一の化学強化ガラスと第二の化学強化ガラスとを合せた合計重量であり、好ましくは３０ｋｇ／ｍ２未満である。 The weight per unit area of the laminated glass in the present invention is the total weight of the first chemically strengthened glass and the second chemically strengthened glass, not including the weight of the intermediate film, and preferably 30 kg. / M 2 or less.

本発明の合せガラスの寸法は、特に制限はないが、耐風圧性を考慮して、厚み及び寸法を決めることが好ましい。例えば、高さ１．０ｍ、幅２．０ｍ程度の場合には、厚みを５．０〜１６．０ｍｍにすることが好ましい。また、高さ２．０ｍ、幅２．０ｍ程度の場合には、厚みを６．５〜１９．０ｍｍに設定することが好ましい。寸法に応じて、厚みを適宜決定することがより好ましい。   The size of the laminated glass of the present invention is not particularly limited, but it is preferable to determine the thickness and size in consideration of wind resistance. For example, when the height is about 1.0 m and the width is about 2.0 m, the thickness is preferably set to 5.0 to 16.0 mm. When the height is about 2.0 m and the width is about 2.0 m, it is preferable to set the thickness to 6.5 to 19.0 mm. More preferably, the thickness is appropriately determined according to the dimensions.

次に、本発明の透光性防音パネルの一実施形態について、図１，２を用いて説明する。   Next, an embodiment of the translucent soundproof panel of the present invention will be described with reference to FIGS.

図１、２に示すように、本発明の透光性防音パネル１０は、合せガラス１の周辺を金属枠２で保持して構成されている。   As shown in FIGS. 1 and 2, the translucent soundproof panel 10 of the present invention is configured by holding the periphery of a laminated glass 1 with a metal frame 2.

図２を併せて参照すると、合せガラス１は、第１の化学強化ガラス１ａと第２の化学強化ガラス１ｂとを、中間膜１ｃを介して貼り合せて構成されている。   Referring also to FIG. 2, the laminated glass 1 is configured by bonding a first chemically strengthened glass 1 a and a second chemically strengthened glass 1 b through an intermediate film 1 c.

また、金属枠２は、内周の片側に偏倚して突出する突出部２ａを有し、断面略Ｌ字状をなしている。また、突出部２ａの反対側には、所定の間隔をおいて矩形状の押縁部材３が配置され、タッピングネジ４にて金属枠２に固定されるようになっている。突出部２ａと押縁部材３の間には、合せガラス１の周縁を受け入れる溝部５が形成されている。   Further, the metal frame 2 has a protruding portion 2a that is biased and protrudes on one side of the inner periphery, and has a substantially L-shaped cross section. Further, a rectangular pressing edge member 3 is arranged at a predetermined interval on the opposite side of the protruding portion 2 a and is fixed to the metal frame 2 by a tapping screw 4. A groove 5 that receives the periphery of the laminated glass 1 is formed between the protruding portion 2 a and the pressing member 3.

したがって、押縁部材３を装着しない状態で、金属枠２の突出部２ａの反対側から、金属枠２の内周に合せガラス１の周縁を挿入し、その外側から押縁部材３を挿入してタッピングネジ４により、押縁部材３を金属枠２に固定する。そして、合せガラス１の周縁と、金属枠２及び押縁部材３との隙間に、シール材６を充填することにより、合せガラス１を金属枠２に固定することができる。   Therefore, the tapping is performed by inserting the peripheral edge of the laminated glass 1 into the inner periphery of the metal frame 2 from the opposite side of the protruding portion 2a of the metal frame 2 and inserting the press edge member 3 from the outer side, without mounting the pressing member 3. The pressing member 3 is fixed to the metal frame 2 with the screws 4. And the laminated glass 1 can be fixed to the metal frame 2 by filling the gap between the peripheral edge of the laminated glass 1 and the metal frame 2 and the pressing member 3 with the sealing material 6.

この透光性防音パネル１０は、第１の化学強化ガラス１ａが道路の外側に配置され、第２の化学強化ガラス１ｂが道路の内側に配置されるように、路側に沿って配置されて使用される。適用対象となる道路としては、特に限定は無く、高速道路、一般道路、遊歩道などの人道等が挙げられる。   The translucent soundproof panel 10 is used by being disposed along the roadside so that the first chemically strengthened glass 1a is disposed outside the road and the second chemically strengthened glass 1b is disposed inside the road. Is done. The road to be applied is not particularly limited, and examples thereof include a highway, a general road, and a human road such as a promenade.

次に、図３〜６を用いて、本発明の透光性防音パネルの取り付け構造体の一実施形態について説明する。   Next, an embodiment of the mounting structure of the translucent soundproof panel according to the present invention will be described with reference to FIGS.

図３，４に示すように、道路３０の側部に沿って一定の間隔を隔てて複数本の支柱２０が立設される。各支柱２０は、それらの上端部が道路３０側に緩やかに湾曲している。   As shown in FIGS. 3 and 4, a plurality of support columns 20 are erected along the side portion of the road 30 at a predetermined interval. Each strut 20 has its upper end gently curved toward the road 30.

図５，６を併せて参照すると、各支柱２０は、長手方向に対して垂直な断面がＨ字状をなし、幅方向両側に突出する一対のフランジ部２１ａ、２１ｂを有している。そして、各フランジ部２１ａ、２１ｂの間に、金属枠２に保持された合せガラス１の金属枠２部分が挿入される保持溝が形成されている。   Referring to FIGS. 5 and 6, each support column 20 has a pair of flange portions 21 a and 21 b that protrude in the width direction on both sides in a cross section perpendicular to the longitudinal direction. And the holding groove into which the metal frame 2 part of the laminated glass 1 hold | maintained at the metal frame 2 is inserted is formed between each flange part 21a, 21b.

透光性防音パネル１０は、各支柱２０の間の上端側から、金属枠２の両側を上記フランジ部２１ａ、２１ｂの間に挿入して設置される。そして、金属枠２は、道路３０の外側のフランジ部２１ａから板ばねなどの付勢具２２で付勢されて、道路３０側のフランジ部２１ｂに当接して固定されている。更に、各支柱２０の間に、透光性防音パネル１０を上下方向に複数段に積み重ねることにより、道路３０の側部を高く覆う防音壁が構成されるようになっている。   The translucent soundproof panel 10 is installed by inserting both sides of the metal frame 2 between the flange portions 21 a and 21 b from the upper end side between the columns 20. The metal frame 2 is urged by the urging tool 22 such as a leaf spring from the flange portion 21a on the outside of the road 30, and is fixed in contact with the flange portion 21b on the road 30 side. Furthermore, between each support | pillar 20, the sound-insulation wall which covers the side part of the road 30 highly is comprised by stacking the translucent sound-insulation panel 10 in multiple steps in the up-down direction.

本発明の透光性防音パネルは、第１の化学強化ガラスと、第２の化学強化ガラスとを、中間膜を介して貼り合せた合せガラスで構成されるので、透明で耐候性に優れ、走行側から透光性防音パネルを通して窓外を透視でき、走行中における窓外の景観が確保される。また、強度が高く耐風圧性に優れるので、合せガラス全体の厚みをより薄くでき、軽量化が可能である。また、耐熱性に優れ、局所的に加熱されたとしても、ひび割れ等がし難いので、道路の内側にて、事故衝突等により火災が発生したても、道路や線路の外側への火災の広がりを抑えることができる。そして、車の走行に伴う積荷の落下などによって、道路の内側から衝撃が加わって、道路の内側に配置される第２のガラス板が破損しても、その破片は、中間膜や、第１の化学強化ガラスによって、道路の外側への飛散を抑制され、仮にガラス片が飛散したとしても、化学強化ガラスの特性により、そのガラス片をより小さくできるので、周囲への被害を抑えることができ、極めて安全性に優れる。   Since the translucent soundproof panel of the present invention is composed of laminated glass obtained by bonding the first chemically tempered glass and the second chemically tempered glass through an intermediate film, it is transparent and excellent in weather resistance, The outside of the window can be seen through the translucent soundproof panel from the traveling side, and the scenery outside the window during traveling is secured. Moreover, since the strength is high and the wind pressure resistance is excellent, the thickness of the entire laminated glass can be further reduced, and the weight can be reduced. In addition, it has excellent heat resistance, and even if heated locally, it is difficult to crack, so even if a fire occurs due to an accident collision on the inside of the road, the fire spreads to the outside of the road or track Can be suppressed. And even if the impact is applied from the inside of the road due to the fall of the cargo accompanying the traveling of the car and the second glass plate disposed inside the road is broken, the fragments are the intermediate film or the first film. The chemical tempered glass suppresses the scattering to the outside of the road, and even if the glass pieces are scattered, the properties of the chemically tempered glass can make the glass pieces smaller, so that damage to the surroundings can be suppressed. , Extremely safe.

［試験例１］
（製造例１−１）
第１の化学強化ガラス（モジュール寸法：幅２０００ｍｍ、高さ１０００ｍｍ、厚３．０ｍｍ 表面圧縮応力：４００ＭＰa）の上に中間膜（ポリビニルブチラール樹脂（ＰＶＢ））を載せ、その上にさらに第２の化学強化ガラス（モジュール寸法：幅２０００ｍｍ、高さ１０００ｍｍ、厚３．０ｍｍ 表面圧縮応力：４００ＭＰa）を乗せ、予備圧着、本圧着をして、厚さ３．０ｍｍの中間膜を有する合せガラスを製造した。この合せガラスの単位面積当たりの重量は１５ｋｇ／ｍ２であった。得られた合せガラスを、図１に示す金属枠で周囲を囲って、透光性防音パネルを製造した。 [Test Example 1]
(Production Example 1-1)
An interlayer film (polyvinyl butyral resin (PVB)) is placed on the first chemically tempered glass (module dimensions: width 2000 mm, height 1000 mm, thickness 3.0 mm, surface compressive stress: 400 MPa), and further a second second Chemically tempered glass (module dimensions: 2000 mm in width, 1000 mm in height, 3.0 mm in thickness, surface compressive stress: 400 MPa) is placed, pre-bonded, and finally bonded to produce a laminated glass having an intermediate film with a thickness of 3.0 mm did. The weight per unit area of this laminated glass was 15 kg / m 2 . The obtained laminated glass was surrounded by a metal frame shown in FIG. 1 to produce a translucent soundproof panel.

（製造例１−２）
製造例１−１において、化学強化ガラスの代わりに、ソーダライムシリケート系フロートガラス（モジュール寸法：幅２０００ｍｍ、高さ１０００ｍｍ、厚５．０ｍｍ）を使用した以外は、製造例１−１と同様にして合せガラスを製造した。この合せガラスの単位面積当たりの重量は２５ｋｇ／ｍ２で、中間層の厚みは３ｍｍであった。そして、得られた合せガラスを、図１に示す金属枠で周囲を囲って、透光性防音パネルを製造した。 (Production Example 1-2)
In Production Example 1-1, the same procedure as in Production Example 1-1 was used except that soda lime silicate float glass (module dimensions: width 2000 mm, height 1000 mm, thickness 5.0 mm) was used instead of chemically strengthened glass. Laminated glass was manufactured. The weight per unit area of this laminated glass was 25 kg / m 2 , and the thickness of the intermediate layer was 3 mm. And the periphery of the obtained laminated glass was enclosed with the metal frame shown in FIG. 1, and the translucent soundproof panel was manufactured.

製造例１−１、１−２の透光性防音パネルについて、以下に示す方法により耐風圧性、防音性、耐熱性を評価した。結果を表１に記す。   About the translucent soundproof panel of manufacture example 1-1, 1-2, the wind pressure resistance, soundproofing property, and heat resistance were evaluated by the method shown below. The results are shown in Table 1.

・耐風圧荷重：各ガラス規格値より算出し、ガラス板を水平に置き、その上に風圧相当の荷重を載せ、ガラス板の破損の有無を確認した。   -Wind pressure load resistance: Calculated from each glass standard value, a glass plate was placed horizontally, a load corresponding to wind pressure was placed thereon, and the presence or absence of breakage of the glass plate was confirmed.

・防音性評価：遮音試験にて、各周波数での音響透過損失を測定を行い、４００Ｈｚ及び１０００Ｈｚでの音響透過損失をｄＢ(デシベル)で評価した。評価基準は４００Ｈｚで２５ｄＢ以上及び１０００Ｈｚで３０ｄＢ以上であるものを○とし、それ以外のものを×とした。   -Soundproofing evaluation: The sound transmission loss at each frequency was measured in a sound insulation test, and the sound transmission loss at 400 Hz and 1000 Hz was evaluated in dB (decibel). The evaluation criteria were ◯ for 400 dB at 25 dB or more and 1000 Hz for 30 dB or more, and x for the others.

・耐熱性評価：口元の口径が直径１００ｍｍのプロパンガスタイプのバーナーを、合せガラスとバーナー口元を４０ｃｍ離した距離で設置する。１分間バーナーの炎を照射し、着火しない場合は３０秒単位で燃焼時間を増やし、合計２分間の照射を行う。合せガラスが燃焼しないか、着火しても２０分未満で自消して道路の外側に落下しないものを○とし、それ以外のものを×とした。   Heat resistance evaluation: A propane gas type burner having a diameter of 100 mm at the mouth is installed at a distance of 40 cm between the laminated glass and the burner mouth. Irradiate with a burner flame for 1 minute. If not ignited, increase the combustion time in units of 30 seconds and perform irradiation for a total of 2 minutes. When the laminated glass did not burn or when it ignited, it turned out to be less than 20 minutes and did not fall outside the road.

上記結果より、化学強化ガラスからなる合せガラスを使用した製造例１−１は、ガラス板の厚みが薄くても、耐風圧性、防音性、耐熱性に優れるものであった。   From the above results, Production Example 1-1 using a laminated glass made of chemically strengthened glass was excellent in wind pressure resistance, soundproofing and heat resistance even when the glass plate was thin.

これに対し、フロートガラス板からなる合せガラスを使用した製造例１−２は、ガラス板の厚みがあり、重量の嵩むものであった。更には、耐熱性の劣るものであった。   On the other hand, the manufacture example 1-2 which uses the laminated glass which consists of a float glass plate has the thickness of the glass plate, and was heavy. Furthermore, it was inferior in heat resistance.

［試験例２］
（製造例２−１）
第１の化学強化ガラス（モジュール寸法：幅２０００ｍｍ、高さ１０００ｍｍ、厚３．０ｍｍ 表面圧縮応力：３９２ＭＰa）の上に中間膜（ポリビニルブチラール樹脂（ＰＶＢ））を載せ、その上にさらに第２の化学強化ガラス（モジュール寸法：幅２０００ｍｍ、高さ１０００ｍｍ、厚３．０ｍｍ 表面圧縮応力：３９２ＭＰa）を乗せ、予備圧着、本圧着をして、厚さ１．５２ｍｍの中間膜を有する合せガラスを製造した。この合せガラスの単位面積当たりの重量は１５ｋｇ／ｍ２であった。得られた合せガラスを、図１に示す金属枠で周囲を囲って、透光性防音パネルを製造した。 [Test Example 2]
(Production Example 2-1)
An intermediate film (polyvinyl butyral resin (PVB)) is placed on the first chemically strengthened glass (module dimensions: width 2000 mm, height 1000 mm, thickness 3.0 mm, surface compressive stress: 392 MPa), and further a second Chemically tempered glass (module dimensions: width 2000 mm, height 1000 mm, thickness 3.0 mm, surface compressive stress: 392 MPa) is placed, pre-bonded, and finally pressed to produce a laminated glass having an intermediate film with a thickness of 1.52 mm. did. The weight per unit area of this laminated glass was 15 kg / m 2 . The obtained laminated glass was surrounded by a metal frame shown in FIG. 1 to produce a translucent soundproof panel.

（製造例２−２）
製造例２−１と同様にして、厚さ２．２９ｍｍの中間膜を有する合せガラスを製造し、図１に示す金属枠で周囲を囲って、透光性防音パネルを製造した。 (Production Example 2-2)
In the same manner as in Production Example 2-1, a laminated glass having an interlayer film having a thickness of 2.29 mm was produced, and a translucent soundproof panel was produced by surrounding the periphery with a metal frame shown in FIG.

（製造例２−３）
製造例２−１と同様にして、厚さ３．０５ｍｍの中間膜を有する合せガラスを製造し、図１に示す金属枠で周囲を囲って、透光性防音パネルを製造した。 (Production Example 2-3)
In the same manner as in Production Example 2-1, a laminated glass having an intermediate film having a thickness of 3.05 mm was produced, and a translucent soundproof panel was produced by surrounding the periphery with a metal frame shown in FIG.

（製造例２−４）
製造例２−１と同様にして、厚さ３．８１ｍｍの中間膜を有する合せガラスを製造し、図１に示す金属枠で周囲を囲って、透光性防音パネルを製造した。 (Production Example 2-4)
In the same manner as in Production Example 2-1, a laminated glass having an intermediate film having a thickness of 3.81 mm was produced, and a translucent soundproof panel was produced by surrounding the periphery with a metal frame shown in FIG.

（製造例２−５）
製造例２−１と同様にして、厚さ５．３３ｍｍの中間膜を有する合せガラスを製造し、図１に示す金属枠で周囲を囲って、透光性防音パネルを製造した。 (Production Example 2-5)
A laminated glass having an intermediate film having a thickness of 5.33 mm was produced in the same manner as in Production Example 2-1, and a light-transmitting soundproof panel was produced by surrounding the periphery with a metal frame shown in FIG.

（製造例２−６）
製造例２−１と同様にして、厚さ６．８６ｍｍの中間膜を有する合せガラスを製造し、図１に示す金属枠で周囲を囲って、透光性防音パネルを製造した。 (Production Example 2-6)
In the same manner as in Production Example 2-1, a laminated glass having an interlayer film having a thickness of 6.86 mm was produced, and a translucent soundproof panel was produced by surrounding the periphery with a metal frame shown in FIG.

（製造例２−７）
製造例２−２において、第１の化学強化ガラス及び第２の化学強化ガラスとして、厚３．０ｍｍ、表面圧縮応力３４３ＭＰaの化学強化ガラスを使用した以外は、製造例２−２と同様にして、厚さ２．２９ｍｍの中間膜を有する合せガラスを製造し、図１に示す金属枠で周囲を囲って、透光性防音パネルを製造した。 (Production Example 2-7)
In Production Example 2-2, except that chemically tempered glass having a thickness of 3.0 mm and a surface compressive stress of 343 MPa was used as the first chemically tempered glass and the second chemically tempered glass, the same as in Production Example 2-2. Then, a laminated glass having an interlayer film having a thickness of 2.29 mm was manufactured, and the periphery was surrounded by a metal frame shown in FIG.

（製造例２−８）
製造例２−１において、第１の化学強化ガラスの厚みを４．０ｍｍとした以外は、製造例２−１と同様にして、厚さ１．５２ｍｍの中間膜を有する合せガラスを製造し、図１に示す金属枠で周囲を囲って、透光性防音パネルを製造した。 (Production Example 2-8)
In Production Example 2-1, except that the thickness of the first chemically strengthened glass is 4.0 mm, a laminated glass having an intermediate film having a thickness of 1.52 mm is produced in the same manner as in Production Example 2-1, A translucent soundproof panel was manufactured by surrounding the periphery with a metal frame shown in FIG.

（製造例２−９）
製造例２−１において、第１の化学強化ガラスの厚みを５．０ｍｍとした以外は、製造例２−１と同様にして、厚さ１．５２ｍｍの中間膜を有する合せガラスを製造し、図１に示す金属枠で周囲を囲って、透光性防音パネルを製造した。 (Production Example 2-9)
In Production Example 2-1, except that the thickness of the first chemically strengthened glass was 5.0 mm, a laminated glass having an intermediate film having a thickness of 1.52 mm was produced in the same manner as in Production Example 2-1. A translucent soundproof panel was manufactured by surrounding the periphery with a metal frame shown in FIG.

（製造例２−１０）
製造例２−１において、中間膜として、ポリビニルブチラール樹脂の代わりにアイオノプラスト樹脂（ＳＧ）を使用した以外は、製造例２−１と同様にして、厚さ１．５２ｍｍの中間膜を有する合せガラスを製造し、図１に示す金属枠で周囲を囲って、透光性防音パネルを製造した。 (Production Example 2-10)
In Production Example 2-1, an intermediate film having a thickness of 1.52 mm was obtained in the same manner as Production Example 2-1, except that ionoplast resin (SG) was used instead of polyvinyl butyral resin as the intermediate film. Laminated glass was manufactured, and a translucent soundproof panel was manufactured by surrounding the periphery with a metal frame shown in FIG.

（製造例２−１１）
製造例２−１０と同様にして、厚さ２．４１ｍｍの中間膜を有する合せガラスを製造し、図１に示す金属枠で周囲を囲って、透光性防音パネルを製造し、図１に示す金属枠で周囲を囲って、透光性防音パネルを製造した。 (Production Example 2-11)
In the same manner as in Production Example 2-10, a laminated glass having an intermediate film having a thickness of 2.41 mm is produced, and a light-transmitting soundproof panel is produced by surrounding the periphery with a metal frame shown in FIG. The light-transmitting soundproof panel was manufactured by surrounding the periphery with the metal frame shown.

（製造例２−１２）
製造例２−１０と同様にして、厚さ３．０５ｍｍの中間膜を有する合せガラスを製造し、図１に示す金属枠で周囲を囲って、透光性防音パネルを製造し、図１に示す金属枠で周囲を囲って、透光性防音パネルを製造した。 (Production Example 2-12)
In the same manner as in Production Example 2-10, a laminated glass having an intermediate film having a thickness of 3.05 mm is produced, and a translucent soundproof panel is produced by surrounding the periphery with a metal frame shown in FIG. The light-transmitting soundproof panel was manufactured by surrounding the periphery with the metal frame shown.

各透光性防音パネルについて、以下に示す方法により衝突試験を行い、飛散した破片の最大重量、飛散した破片の最大飛散距離、飛散防止率を評価した。結果を表２，３に記す。   Each translucent soundproof panel was subjected to a collision test by the following method, and the maximum weight of the scattered pieces, the maximum scattering distance of the scattered pieces, and the scattering prevention rate were evaluated. The results are shown in Tables 2 and 3.

・衝突性試験：路面高さ１ｍの位置に透光性防音パネルの下端が位置するように透光性防音パネルを配置し、第２の化学強化ガラス側であって、透光性防音パネルの中心位置に、図７に示す３００ｋｇの鉄球（突起付き）を、加撃位置より鉛直方向９５ｃｍの高さから振り子式に加撃し、飛散した破片の最大重量（最も重い破片の重量）及び飛散した破片の最大飛散距離（最も遠くまで飛散した破片の飛散距離）を測定した。また、下記式１により飛散防止率を求めた。
｛合せガラス重量（破損後）／合せガラス重量（破損前）｝×１００・・・（式１） -Collision test: The translucent soundproofing panel is arranged so that the lower end of the translucent soundproofing panel is located at a road surface height of 1 m, on the second chemically tempered glass side, At the center position, a 300 kg iron ball (with protrusions) shown in FIG. 7 is hit in a pendulum manner from a height of 95 cm in the vertical direction from the hit position, and the maximum weight of the scattered pieces (the weight of the heaviest piece) and The maximum scattering distance of the scattered pieces (the scattered distance of the broken pieces scattered farthest) was measured. Moreover, the scattering prevention rate was calculated | required by the following formula 1.
{Laminated glass weight (after breakage) / Laminated glass weight (before breakage)} x 100 (Formula 1)

表２，３の製造例２−１〜２−６、２−１０〜２−１１に示すように、中間膜の厚みが厚くなることに伴い、破片の最大重量が重くなり、破片の最大飛散距離が長くなる傾向にあったが、中間膜の厚みを６ｍｍ以下にすることで、破片の最大重量が小さくなり、破片の最大飛散距離が短くなった。なかでも、製造例２−１〜２−３、２−１０〜２−１１に示すように、中間膜の厚みを１．５〜３．１ｍｍとすることで、破片の最大重量が１ｇ以下、破片の最大飛散距離が５ｍ以下となり、高速自動車国道で定める安全基準を合格するものであった。   As shown in Production Examples 2-1 to 2-6 and 2-10 to 2-11 in Tables 2 and 3, as the thickness of the intermediate film increases, the maximum weight of the fragments increases and the maximum scattering of the fragments. Although there was a tendency for the distance to increase, by making the thickness of the interlayer film 6 mm or less, the maximum weight of the fragments was reduced and the maximum scattering distance of the fragments was shortened. Among them, as shown in Production Examples 2-1 to 2-3 and 2-10 to 2-11, by setting the thickness of the intermediate film to 1.5 to 3.1 mm, the maximum weight of the fragments is 1 g or less, The maximum scattering distance of the debris was 5 m or less, and it passed the safety standards established on the national highway.

また、製造例２−８、２−９との対比により、第１の化学強化ガラスの厚みを薄くすることで、破片の最大重量を小さくできることが分かる。なかでも、第一の化学強化ガラスの厚みを４．０ｍｍ以下にすることで、破片の最大重量が１ｇ以下となり、高速自動車国道で定める安全基準を合格するものであった。   Moreover, by contrast with manufacture examples 2-8 and 2-9, it turns out that the maximum weight of a fragment | piece can be made small by making thickness of 1st chemically strengthened glass thin. Among these, by making the thickness of the first chemically strengthened glass 4.0 mm or less, the maximum weight of the fragments became 1 g or less, which passed the safety standard defined by the national highway.

また、製造例２−４と、２−７との対比より、化学強化ガラスの表面圧縮応力を大きくすることで、破片の最大重量をより軽くできた。   Moreover, the maximum weight of the fragments could be made lighter by increasing the surface compressive stress of the chemically strengthened glass as compared with Production Example 2-4 and 2-7.

１ａ：第１の化学強化ガラス
１ｂ：第２の化学強化ガラス
１ｃ：中間膜
２：金属枠
２ａ：突出部
３：押縁部材
４：タッピングネジ
５：溝部
６：シール材
１０：透光性防音パネル
２０：支柱
２１、２１ａ，２１ｂ：フランジ部
２２：付勢具
３０：道路 DESCRIPTION OF SYMBOLS 1a: 1st chemically strengthened glass 1b: 2nd chemically strengthened glass 1c: Intermediate film 2: Metal frame 2a: Projection part 3: Push edge member 4: Tapping screw 5: Groove part 6: Sealing material 10: Translucent soundproof panel 20: support columns 21, 21a, 21b: flange portion 22: biasing tool 30: road

Claims (4)

道路の路側に沿って配置される透光性防音パネルに用いられる合せガラスであって、
前記合せガラスは、道路の外側に配置される第１の化学強化ガラスと、道路の内側に配置される第２の化学強化ガラスとを、中間膜を介して貼り合せて構成され、
前記第１の化学強化ガラス及び前記第２の化学強化ガラスは、ガラス表面のアルカリ金属原子が大きなイオン半径のアルカリ金属原子に置き換えられることにより、ガラス表面層に圧縮応力が付与されたガラスからなり、
前記第１の化学強化ガラス及び前記第２の化学強化ガラスの表面圧縮応力が３５０ＭＰａ以上であり、
前記第１の化学強化ガラスの厚みが１．５〜４ｍｍであり、
前記第２の化学強化ガラスの厚みが１．５〜８ｍｍであり、
前記中間膜の厚みが１．５〜３．１ｍｍであることを特徴とする合せガラス。 Laminated glass used for a translucent soundproof panel arranged along the roadside of the road,
The laminated glass is constituted by bonding a first chemically strengthened glass disposed outside the road and a second chemically strengthened glass disposed inside the road via an intermediate film,
The first chemically tempered glass and the second chemically tempered glass are made of glass in which compressive stress is applied to the glass surface layer by replacing alkali metal atoms on the glass surface with alkali metal atoms having a large ion radius. ,
The surface compressive stress of the first chemically strengthened glass and the second chemically strengthened glass is 350 MPa or more,
The thickness of the first chemically strengthened glass is 1.5 to 4 mm,
The thickness of the second chemically strengthened glass is 1.5 to 8 mm ,
A laminated glass, wherein the interlayer film has a thickness of 1.5 to 3.1 mm. 前記中間膜が、ビニル系ポリマー、エチレン-ビニル系モノマー共重合体、スチレン系共重合体、ポリウレタン樹脂、フッ素樹脂及びアクリル樹脂から選ばれる一種以上で構成されている、請求項１に記載の合せガラス。 2. The alignment according to claim 1 , wherein the intermediate film is composed of at least one selected from a vinyl polymer, an ethylene-vinyl monomer copolymer, a styrene copolymer, a polyurethane resin, a fluororesin, and an acrylic resin. Glass. 前記中間膜が、ビニル系ポリマー及び／又はエチレン-ビニル系モノマー共重合体で構成されている、請求項２に記載の合せガラス。 The laminated glass according to claim 2 , wherein the intermediate film is composed of a vinyl polymer and / or an ethylene-vinyl monomer copolymer. 道路の路側に沿って配置される透光性防音パネルであって、
請求項１〜３のいずれか１項に記載の合せガラスと、該合せガラスの周辺を囲む金属枠とを備えることを特徴とする透光性防音パネル。 A translucent soundproofing panel arranged along a roadside,
And laminated glass according to any one of claims 1 to 3該合was translucent soundproofing panel; and a metal frame surrounding the periphery of the glass.
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CN201280035687.1A CN103827395B (en) 2011-07-21 2012-07-19 Laminated glass and light transmission baffle-board
MYPI2014000156A MY170281A (en) 2011-07-21 2012-07-19 Laminated glass and translucent soundproof panel
PCT/JP2012/068375 WO2013012044A1 (en) 2011-07-21 2012-07-19 Laminated glass and translucent soundproof panel
TW101126351A TWI564254B (en) 2011-07-21 2012-07-20 Laminated glass and translucent sound control board

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