JP3503049B2 - Corrugated sheet - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a corrugated sheet suitably used as, for example, a back panel of a veranda or a roofing material.

[0002]

2. Description of the Related Art A wainscot of a veranda is required to have a concealing property that is not seen through from the outside and a proper lighting property. Further, the roofing material also needs to have appropriate lighting properties while preventing direct sunlight.

Therefore, conventionally, a corrugated sheet made of synthetic resin colored with a pigment and a corrugated sheet made of synthetic resin mixed with an inorganic filler to make it cloudy are often used as a wainscot of a veranda or a roofing material. Has been done.

[0004]

However, the above corrugated sheet has a problem that it lacks decorativeness and aesthetics because the corrugated sheet is uniformly colored or clouded with a pigment or an inorganic filler. In particular, there was a drawback that the original crystalline feeling of synthetic resin was lost.

Further, the above corrugated sheet is a step forward in terms of daylighting property because the total light transmittance is lowered by the pigment and the inorganic filler.

The present invention has been made in view of the above problems, and its object is to provide good decorativeness and aesthetics,
An object of the present invention is to provide a corrugated sheet having a brilliant crystal sensation and having good daylighting properties and appropriate concealing properties.

[0007]

In order to achieve the above object, the corrugated sheet according to claim 1 of the present invention is a corrugated sheet made of a light-transmissive resin, and a large number of substantially transparent transparent corrugated sheets. Fine irregularities formed between the line part and the transparent line part
It has a concave-convex rough surface portion for scattering light by the transparent clarifying
The flat surface of the in part is smaller than the fine recesses of the rough surface part.
It is deeply recessed and is characterized in Rukoto.

The corrugated plate having such a structure has a good light-collecting property because the material is a translucent resin having a high total light transmittance, and moreover,
Since the rough surface of the uneven surface scatters the transmitted light, it also has an appropriate shielding property so that it cannot be seen through from the outside. Further, since the contrast between the transparent line portion and the roughened rough surface portion is large and gives an impression as if the transparent line portion is a crystal-cut line, this corrugated sheet has good decorativeness and aesthetics. Especially, the transparent line part is deeply concave like this corrugated plate.
If provided, the boundary between the transparent line and the rough surface
Appears sharply, and the transparent line part is deeply and clearly recognized.
As it comes to be like, it is an impression of the crystal cut line
The layer becomes stronger and the decorativeness and aesthetics are further improved.

Next, the corrugated sheet according to claim 2 of the present invention is the corrugated sheet according to claim 1, wherein the transparent line portions are in a cross line pattern in which the transparent line portions cross each other obliquely with respect to the corrugating direction of the corrugated sheet. It is characterized by being formed.

When the transparent line portion is formed in a vertical and horizontal lattice shape, the transparent line portion is distorted during corrugation processing, and it becomes difficult to form a straight lattice line transparent line portion in the vertical and horizontal directions. When the transparent line part is formed into a cross line pattern like the corrugated plate of, even if some distortion occurs,
The distortion becomes difficult to see, and it looks like a line that extends almost straight in the diagonal direction, further improving decorativeness and aesthetics.

[0011]

[0012]

[0013]

[0014]

[0015]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Specific embodiments of the present invention will be described in detail below with reference to the drawings.

FIG. 1 is a partial perspective view of a corrugated plate according to an embodiment of the present invention, FIG. 2 is a partial plan view of the corrugated plate, and FIG. 3 is an enlarged partial sectional view of the corrugated plate.

The corrugated plate 1 is made of a translucent resin such as polycarbonate, acrylic resin or polyvinyl chloride.
As shown in FIG. 1 and FIG. 2, it has a large number of transparent line portions 2 through which light passes without being scattered, and a rough surface portion 3 formed between the transparent line portions 2 which causes light scattering. There is.

The transparent line portion 2 of this embodiment is a corrugated plate 1.
Are formed in a cross line pattern that crosses each other diagonally with respect to the corrugation direction. When the transparent line portion 2 is formed in a cross-line pattern in this way, even if some distortion occurs in the transparent line portion 2 during corrugation processing, the distortion becomes difficult to understand, and a line that extends almost straight in an oblique direction. Since it looks like, good decorativeness and aesthetics are imparted.

The transparent line portion 2 may be formed in a shape other than the above-mentioned cross line pattern, for example, in a vertical and horizontal lattice shape, but in that case, distortion during corrugation is conspicuous and the vertical and horizontal transparent lines are bent. Since it is easy to understand, the decorative properties and aesthetics of the corrugated sheet are slightly reduced.

The transparent line portion 2 which can be seen through from the outside is preferably formed so as to occupy 5 to 25% of the total area of the corrugated sheet 1, and the line width thereof is 1 to 5 m.
It is preferably in the range of m. When the area of the transparent line portion 2 is less than 5% and the line width is thinner than 1 mm, the shielding property is improved, but the transparent line portion 2 becomes unclear and the decorativeness and aesthetics of the corrugated sheet 1 are deteriorated. Not preferable. On the other hand, the area of the transparent line is more than 25%,
If the line width is thicker than 5 mm, it is not preferable because the shielding property is lowered and it becomes difficult to sufficiently prevent see-through from the outside.

As shown in FIG. 3, the corrugated plate 1 is formed by embossing one surface (lower surface) of a translucent resin plate 4 with an embossing roll or the like to form fine unevenness so that the uneven surface portion 3 is formed. The transparent line portion 2 is formed by forming a flat surface between these rough surface portions 3 deeper than the minute concave portions 3a of the rough surface portion 3 while forming the transparent line portion 2. When the transparent resin plate 4 is a resin plate that discolors such as polycarbonate or polyvinyl chloride, the acrylic resin film layer 5 is laminated and integrated on the opposite surface (upper surface) of the translucent resin plate 4 as shown in the drawing. It is preferable to improve the property.

In such a corrugated plate 1, when a polycarbonate plate or an acrylic resin plate is used as the translucent resin plate 4, since the total light transmittance thereof is as high as 90% or more, the light collecting property is good, and moreover, There is a large contrast between the transparent line portion 2 that transmits without scattering light and the rough surface portion 3 that transmits while scattering light due to fine irregularities, and it seems that the transparent line portion 2 is a crystal-cut line. Since it gives an impression, it has good decorativeness and aesthetics. In particular, when the transparent line portion 2 is deeply recessed as described above, a boundary portion between the transparent line portion 2 and the rough surface portion 3 appears sharply, and the transparent line portion 2 is visually recognized deeply and clearly. The impression of the cut line becomes stronger, and the decorativeness and aesthetics are further improved.

When polycarbonate is used for the corrugated sheet 1, its impact strength is large, so that the sheet thickness is 0.5 to
If the thickness is set to about 1.5 mm, the corrugated plate 1 having sufficient practical strength and less likely to break can be obtained. Further, if the acrylic resin film layer 5 has a thickness of about 30 to 100 μm, it is possible to sufficiently prevent the deterioration of the translucent resin plate 4 due to ultraviolet rays and improve the weather resistance of the corrugated plate 1.

Further, it is preferable that the height difference of the fine unevenness of the rough surface portion 3 is about 4 to 15 μm. If the fine unevenness having such a height difference is formed, the transmitted light is sufficiently scattered. The contrast with the transparent line portion 2 can be increased. The depth d of the transparent line portion 2 is 5 to 2
It is preferable to set it to about 0 μm and make it deeper than the height difference of the fine irregularities, and if it is formed deeply like this, the impression of a clear crystal cut line becomes strong as described above, and the decorativeness and aesthetics are remarkable. Improve to.

In the corrugated plate 1 having the above-described structure, a translucent resin is melt-extruded into a plate shape, and one surface of the corrugated plate is engraved with fine irregularities to form the irregularity rough surface portion 3. , The flat surface between the rough surface portions 3 is deeply recessed to form the transparent line portion 2 in a cross line pattern, and the acrylic resin film 5 is laminated on the opposite surface of the transparent resin plate. It can be easily manufactured by a method of forming a corrugated shape with a corrugating roll.

FIG. 4 is a partially enlarged sectional view of a corrugated plate according to another embodiment of the present invention.

The corrugated plate 10 is made of polycarbonate as a light-transmissive resin, and has polycarbonate surface layers 4a and 4a containing a large amount of ultraviolet absorbers laminated on the upper and lower surfaces of the polycarbonate plate 4 integrally. And embossing fine unevenness on one surface (lower surface) of the uneven surface 3
And a flat surface between these rough surface portions 3 is deeply recessed to form a transparent line portion 2 having a cross line pattern.
Is formed. Other configurations are the same as those of the corrugated plate 1 described above, and thus, the same members in FIG.

Of course, the corrugated plate 10 as described above has the same effect as that of the corrugated plate 1 described above, but further, the surface layers 4a and 4a containing the ultraviolet absorber are formed on both surfaces. Therefore, there is an advantage that the polycarbonate plate 4 is protected by absorbing the ultraviolet light regardless of the direction of the light received from the front and back, and the weather resistance of the corrugated plate 10 can be further improved. Further, in this corrugated plate 10, the roughened surface portions 3 may be formed on both surfaces of the polycarbonate plate 4.

FIG. 5 is a partial plan view of a corrugated plate according to still another embodiment of the present invention.

In this corrugated plate 100, the transparent line portions 2 are not formed in a cross line pattern, but a large number of vertical lines 2a are connected by a plurality of short connecting lines 2b, and these vertical lines 2a and connecting lines are formed. The rectangular portion surrounded by 2b is the uneven rough surface portion 3. The other configurations are similar to those of the corrugated plate 1 described above, and thus the description thereof will be omitted.

Like the corrugated plate 100, the transparent line portion 2
Is formed in a pattern in which a large number of vertical lines 2a are connected by a large number of connecting lines 2b, the distortion during corrugation processing is hardly noticeable and the vertical lines 2a appear almost straight, so that the cross line pattern is transparent. Similar to the case of forming the line portion 2, decorativeness and aesthetics are improved.

Although the present invention has been described in detail above with reference to the corrugated plates of the typical embodiments, the present invention is not limited to these embodiments, and for example, both surfaces of the translucent resin plate 4 can be formed. Embossing fine unevenness to form the uneven rough surface portion 3,
It is possible to allow various design changes such as laminating and integrating other functional resin films other than the acrylic resin film.

[0033]

EFFECTS OF THE INVENTION The corrugated plate of the present invention uses a transparent resin having a high total light transmittance as a material, so that the corrugated plate has a good light-collecting property, and also has an appropriate shielding property due to the light scattering of the rough surface portion of the unevenness. There is a large contrast between the transparent line part and the roughened rough surface part, giving the impression that the transparent line part is a clear and crystal-cut line, so the decorativeness and aesthetics are good, and the impact resistance is great It has a remarkable effect that it is not easily cracked even if it receives it.

[Brief description of drawings]

FIG. 1 is a partial perspective view of a corrugated plate according to an embodiment of the present invention.

FIG. 2 is a partial plan view of the corrugated plate.

FIG. 3 is an enlarged partial sectional view of the corrugated plate.

FIG. 4 is an enlarged partial sectional view of a corrugated plate according to another embodiment of the present invention.

FIG. 5 is a partial plan view of a corrugated plate according to still another embodiment of the present invention.

[Explanation of symbols]

1,10,100 Corrugated plate 2 Transparent line part 3 Uneven rough surface part 3a Small concave part of uneven rough surface part 4 Translucent resin plate (polycarbonate plate) 4a Polycarbonate surface layer containing ultraviolet absorber 5 Acrylic resin film layer

─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hiroshi Kageyama 2-3-3 Azuchi-cho, Chuo-ku, Osaka City Takiron Co., Ltd. (72) Inventor Kan Kikuchi 2-3-3 Azuchi-cho, Chuo-ku, Osaka (56) References JP-A-6-117067 (JP, A) JP-A-5-15836 (JP, A) Patent 2566129 (JP, B2) (58) Fields investigated (Int.Cl. ⁷ , DB name) E04C 2/00-2/54 E04D 3/32

Claims (2)

(57) [Claims] 1. A corrugated plate made of a translucent resin, which scatters light by a large number of substantially linearly formed transparent line portions and fine irregularities formed between the transparent line portions.
Possess a that uneven rough surface, the flat surface of the transparent line section
But it corrugated characterized that you have deeply recessed than the fine recesses of the uneven rough surface. 2. The corrugated plate according to claim 1, wherein the transparent line portions are formed in a cross line pattern that crosses each other in an oblique direction with respect to the corrugated direction of the corrugated plate.