JP2845421B2 - Translucent soundproof plate - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light-transmitting soundproof plate mainly installed along a road or a railway.

[0002]

2. Description of the Related Art Conventionally, this type of light-transmitting soundproofing plate is generally provided with a transparent function, such as a transparent resin plate or a transparent glass plate, and is provided with a light-transmitting function, with matting applied to the entire surface. A translucent resin plate and a frosted glass plate are known.
Japanese Patent Publication No. 61-35327 and Japanese Utility Model Publication No. 61-31
As described in Japanese Patent No. 059, a transparent sound insulating material is known in which a translucent portion such as a mat is partially provided on the surface of a transparent resin plate to have a transparent portion and a translucent portion. .

[0003]

However, a transparent resin plate or a transparent glass plate having the above-mentioned transparent function is preferable because a running vehicle driver or a passenger can enjoy the outside scenery and has no feeling of oppression. However, there is a problem in that sunlight or light from a vehicle headlight is reflected on the surface and becomes glare, which adversely affects vehicle driving. In addition, the translucent resin plate and frosted glass plate with a matte finish on the entire surface that has a light-transmitting function do not have the above-mentioned problems, but they obstruct the view by blocking the outside view from the traveling vehicle driver or passenger. There is a problem to do.

Japanese Patent Publication No. 61-35327 and Japanese Examined Utility Model Publication No.
The transparent sound-insulating material described in JP-A 1-31059 has a transparent portion and a translucent portion, and thus solves both of the above problems. However, the surface of the transparent resin plate is sandblasted, polished, etched, Since the matte part is provided by roughening by embossing etc., it is easy for dust and dirt to adhere to this roughened matte part, transparency and translucency are impaired, and aesthetic appearance There are problems that can be damaging.

An object of the present invention is to provide a light-transmitting soundproofing plate which has solved the above-mentioned conventional problems.

[0006]

In order to solve the above-mentioned problems, a light-transmitting sound-insulating plate of the present invention comprises two transparent plates laminated and integrated via a transparent adhesive layer, and an adhesive layer of at least one of the transparent plates. An opaque portion is provided by partially roughening the side surface.

[0007]

[Function] Since the transparent plate is partially provided with the opaque portion, the transparent plate has the transparent portion and the opaque portion as a whole, and the vehicle driver or the passenger traveling can enjoy the outside scenery by the transparent portion. It has no feeling of oppression, and the opaque part suppresses the reflected light of sunlight and the headlight of the vehicle,
Does not adversely affect vehicle operation. In addition, since the surface of the transparent plate on the side of the adhesive layer is partially roughened to provide an opaque portion, the surface corresponding to the opaque portion becomes smooth, and dust, dirt, and the like hardly adhere.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below with reference to the drawings. In the drawing, 1 is a transparent plate, 2 is a transparent adhesive layer, and two transparent plates 1 are laminated and integrated via the transparent adhesive layer 2.

As the transparent plate 1, a transparent resin plate such as a polycarbonate resin plate, an acrylic resin plate and a vinyl chloride resin plate or a transparent glass plate is used. Particularly, a polycarbonate resin plate is preferably used from the viewpoint of impact resistance. The transparent plate 1 is usually formed in a rectangular shape such as a rectangle, but may be formed in another shape. The transparent plate 1 may be colorless and transparent, or may be colored and transparent.

An opaque portion 3 is formed by partially roughening the surface of at least one of the two transparent plates 1 on the transparent adhesive layer 2 side. For example, in the case of FIG. 1, only one of the transparent plates 1 is roughened, and in the case of FIG. 2, both the transparent plates 1 are roughened, and the opaque portions 3 are provided. When roughening is performed on both of the transparent plates 1, opposing portions of the transparent plate 1 may be roughened, or completely different portions may be roughened without facing each other.

The opaque portion 3 is partially provided on the transparent plate 1. For example, in the case of FIG. 3, the opaque portion 3 is provided on the upper and lower sides of the transparent plate 1 as horizontal strips (portions indicated by oblique lines).
In the case of FIG. 4, it is provided as spots (portions indicated by oblique lines) over the entire transparent plate 1. In addition to the above, the opaque portion 3 may be provided at an appropriate portion of the transparent plate 1 and may have an appropriate pattern or the like.

The rough surface processing for forming the opaque portion 3 is as follows.
Any known means such as sand blasting, polishing, embossing with a roll, and chemical etching may be appropriately employed, and the opaque portion 3 may be translucent or completely opaque. In addition, it is a matter of course that a portion of the transparent plate 1 on which the above roughening is not performed is a transparent portion having a smooth surface.

The transparent adhesive layer 2 is for bonding the two transparent plates 1 and generally may be formed of a material which forms an interlayer film of laminated glass. That is, the transparent adhesive layer 2 may be formed using polyvinyl butyral, an ethylene-vinyl acetate copolymer, a polyurethane resin, various adhesives, or the like.

[0014]

As described in detail above, the light-transmitting soundproofing plate of the present invention has a opaque portion formed by partially roughening the surface of the transparent plate on the side of the adhesive layer. As described above, the rough surface of the matte portion is not exposed to the surface, dust and dirt are hardly adhered to the surface, and the transparency, translucency and aesthetic appearance can be maintained for a long time.

Further, since the transparent plate is partially provided with the opaque portion, the transparent plate and the opaque portion are provided as a whole, so that the driver and the passenger are obstructed from the outside by feeling oppressive. In addition to providing such an effect, the reflected light of sunlight and the headlights of the vehicle is suppressed to exhibit an anti-glare effect for the vehicle driver, and there is no hindrance to vehicle running.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing an embodiment of a main part of a light-transmitting soundproof plate of the present invention.

FIG. 2 is a cross-sectional view showing another embodiment of a main part of the translucent soundproof plate of the present invention.

FIG. 3 is a front view showing an embodiment of the entire light-transmitting soundproofing plate of the present invention.

FIG. 4 is a front view showing another embodiment of the entire light-transmitting soundproof plate of the present invention.

[Explanation of symbols]

 Reference Signs List 1 transparent plate 2 transparent adhesive layer 3 opaque part

Claims (1)

(57) [Claims] 1. Two transparent plates are laminated and integrated via a transparent adhesive layer, and an opaque portion is provided by partially roughening at least the surface of the transparent plate on the adhesive layer side. Translucent soundproof board.