JPH03232748A - Multiple glass laminate and production thereof - Google Patents

Abstract

PURPOSE:To obtain the title laminate with improved mechanical strength by laminating both the surfaces of specific reinforced vitreous core member with plate glass or reinforced plate glass and by putting a backup material and elastic sealant on the periphery of the laminate and covering and supporting the periphery with an edge member. CONSTITUTION:Both the surfaces of a core member 2 consisting of reinforced plate glass are laminated with plate glass 3, 4 larger in size than the core member both longitudinally and laterally into a multiple glass laminate 1. Thence, an impact is applied on the end of the core member 2 by impact generating means through the impact introduction port 8 of the member 2 to effect propagation of cracks on the entire surface of said member and expand both the longitudinal and lateral sizes thereof. A backup material 5 such as expanded PE and an elastic sealant 6 such as siliconebased one are put on the periphery of the core member 2 to make a buffering support in the expansion of the sizes of the member 2 and the periphery of the laminated glass is covered and protected with an edge member 7 such as neoprene rubber, thus obtaining the objective multiple glass laminate.

Description

Detailed Description of the Invention (Industrial Field of Application) The present invention provides decorativeness and aesthetics by laminating a plurality of glass plates and adding a crack to the glass in the center. The present invention relates to a composite glass laminate suitable for and a method for manufacturing the same.

(Prior Art) In recent years, fluorinated glass has been widely used for building materials such as window glass and partition materials, automobile window glass, etc. due to its high strength and safety.

This tempered glass is made by heating ordinary plate glass to about 700°C and then uniformly quenching it by blowing air onto the surface of the glass plate to create compressive stress on the surface and tensile stress inside. Therefore, the static strength against wind pressure, water pressure, etc. is 3 to 4 times higher than that of ordinary plate glass of the same thickness. Furthermore, even if the tempered glass breaks, it will not break into sharp pieces like normal plate glass, but will only break into fine granular pieces, so it can be said to be superior in terms of safety. However, if tempered glass is broken, it will fall off without retaining its original shape, so to prevent this, so-called laminated glass, which is tempered glass laminated with glass that has other physical properties, is also used.

(Problems to be Solved by the Invention) By the way, when the tempered glass breaks, it does not break only at the part that receives an external impact, but fine cracks are uniformly generated over the entire surface of the tempered glass due to the impact. At that time, the inventors paid close attention to the fact that light is diffusely reflected due to fine cracks, and as a result, the tempered glass exhibits decorative properties. They came up with a method for producing it.

(Means for Solving the Problems) That is, in order to achieve the above-mentioned problems, the present invention comprises laminating plate glass or reinforced plate glass on both sides of a core member made of reinforced glass which is provided with cracks on the entire surface, and
A backup material and an elastic sealing material are interposed on the peripheral edge of the core member, so that the peripheral edge of the laminated glass is covered and held by the edge member.

Further, the method of the present invention includes laminating plate glass or reinforced plate glass having larger vertical and horizontal sizes than the core member on both sides of a core member made of tempered glass, and interposing a backup material and an elastic sealing material at the periphery of the core member. At the same time, the peripheral edges of these laminated glasses are covered and held by an edge member, and an impact force is applied to the end of the core member to cause cracks to occur on the entire surface of the core member.

(Function) First, on both sides of a plate-shaped core member made of tempered glass, plate glass or reinforced plate glass having larger vertical and horizontal sizes than the core member are bonded and laminated. In this case, bonding plate glass or reinforced plate glass that is larger in length and width than the core member is because the length and width of the plate core member expands due to gaps created by cracks in the plate core member made of reinforced glass. It's for a reason.

When an impact force is applied to the end of the plate-shaped core member, for example, by an impact generating means, a crack propagates over the entire surface of the plate-shaped core member, and as a result, the vertical and horizontal sizes of the plate-shaped core member expand.

The core member expanded in length and width is buffered and held by a backup material and an elastic sealing material, and is completed as a cracked composite glass laminate.

(Example) Next, a composite glass laminate and a method for manufacturing the same according to the present invention will be described below by giving an example and referring to the attached drawings.

In FIG. 1, reference numeral 1 indicates a composite glass laminate, and this composite glass laminate 1 has plate glass 3.4 larger in vertical and horizontal size than the core member 2 on both sides of a core member 2 made of plate-shaped tempered glass. It is pasted together and laminated. In this case, the reason why plate glass 3.4, which is larger in length and width than the core member 2, is pasted together is because the length and width of the core member 2 is expanded due to the gap created by cracks in the core member 2 made of reinforced glass. A backup material 5 and an elastic sealing material 6 are interposed at the periphery of the core member 2 to buffer and hold the core member 2 when the core member 2 expands in length and width, and the periphery of these laminated glasses The portion is covered and held by an edge member 7 (see FIG. 2).

Examples of the material for the backup material 5 include polyethylene foam and neoprene rubber. Further, the elastic sealing material 6 may be a silicone-based or polysulfide-based filler that solidifies in an elastic state, and the edge member 7 may be made of neoprene rubber,
Alternatively, synthetic resin materials can be mentioned.

In such a composite glass laminate 1, the characteristics of breakage of tempered glass are taken into consideration, and as a means for forming cracks in the core member 2, an impact generating means (not shown) is used. A shock is applied to the end of the core member 2. For this purpose, the edge member 7 is provided with an impact inlet 8 which leads to the end of the core member 2. In this case, a method may be adopted in which the impact is transmitted to the end of the core member 2 through the impact introduction port 8 using, for example, a sharp chisel or the like.

Next, a method for manufacturing the composite glass laminate l according to the present invention will be explained.

First, plate glasses 3.4, which are larger in length and width than the core member 2, are laminated on both sides of the core member 2 made of tempered glass.

When an impact force is applied to the end of the core member 2 through a chisel or the like by an impact generating means to the impact introduction port 8 of the core member 2, a crack C propagates to the entire surface of the core member 2, see FIG. 3. ), the vertical and horizontal sizes of the core member 2 expand due to the gaps between the cracks C (see FIG. 4). The core member 2 expanded in length and width is restrained from expanding and buffered by a backup material 5 and an elastic sealing material 6 (see FIG. 5), and is a laminated composite glass layer with cracks C. Completed as body l.

In addition, in this example, the core member 2 made of tempered glass
Although a glass plate 3.4 is bonded to the plate glass 3.4 as an example, depending on the application, a tempered glass plate can be used instead of the plate glass 3.4, and glasses having other characteristics can also be used. For example, a combination of a core member 2 made of tempered glass with plate glass on one side and tempered glass on the other side, and a combination of tempered glass on both sides of the core member 2 made of tempered glass are suitable for use in tables and mounting stands.

Furthermore, by using a mirror on the - side, the diffused reflection of light by the crack C becomes more multifaceted, doubling the decorativeness.
The material is also suitable for display purposes.

(Effects of the Invention) According to the present invention, a tempered glass is used as a core member, and other glass is laminated from both sides, and impact force is applied to the tempered glass to provide a uniform and fine rack over the entire surface of the tempered glass. The diffused reflection of light caused by these cracks provides decorative and aesthetic qualities, so it can be used for architectural partition boards, other display materials, furniture, etc.
It is a material suitable for a wide range of uses. Moreover, since multiple sheets of glass are bonded together, the strength is great and the product is highly practical. In addition, the above-mentioned decorativeness can be achieved by simply adding impact force to the tempered glass, resulting in high cost performance.

[Brief explanation of drawings]

FIG. 1 is an overall perspective view showing one embodiment of a composite glass laminate and a method for manufacturing the same according to the present invention, FIG. 2 is an explanatory cross-sectional view of essential parts of the composite glass laminate shown in FIG. 1, and FIG. 5 through 5 are diagrams illustrating the manufacturing process of the composite glass laminate shown in FIG. 1. l... Composite glass laminate, 2... Core member, 3.4
... Plate glass, 5... Backup material, 6... Elastic sealing material, 7... Edge member, 8... Impact introduction port, C... Crack

Claims (2)

[Claims] (1) Plate glass or reinforced plate glass is laminated on both sides of a core member made of tempered glass that is cracked on the entire surface, and a back-up material and an elastic sealing material are interposed at the periphery of the core member. A composite glass laminate characterized in that the peripheral edge of the glass is covered and held by an edge member. (2) On both sides of a core member made of tempered glass, plate glass or reinforced plate glass having larger vertical and horizontal sizes than the core member is laminated, and a backup material and an elastic sealing material are interposed at the periphery of the core member, and these laminated A method for producing a composite glass laminate, comprising: covering and holding the peripheral edge of the glass with an edge member, and applying an impact force to the end of the core member to generate cracks on the entire surface of the core member.