JPH1122148A - Building decorative board made of plastic - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a lightweight building decorative board having excellent heat-insulating properties and being made of plastics. SOLUTION: The building decorative board P made of plastics is formed in a hollow double wall structure, which has a surface wall 1 and a rear wall 2 oppositely faced at an interval and margins 3-6 for connection continuously connected in the peripheral sections of the surface wall 1 and the rear wall 2 and the inside of which is hollowed. A plurality of block-shaped embossed surfaces 1a partitioned by joint-like surfaces 1b are formed on the surface wall 1. On the other hand, projecting sections 2b projected to the anti-surface wall side are formed at sites oppositely faced to the joint-like surfaces 1b in the rear wall 2 while recessed ribs 2a indented on the surface wall side are formed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a decorative plate made of plastic for improving the appearance of a wall or the like by being attached to the wall or the like of a building.

[0002]

2. Description of the Related Art A conventional plastic architectural decorative plate 101 shown in FIG. 3 has a block-shaped protruding portion 101a partitioned by joint-like portions 101b formed on the surface thereof, and an upper edge connected to the upper end side. A portion 104, a side edge portion 103a provided continuously with the right-side uneven portion, a fitting groove 102a provided in the left-side uneven portion 102, and an interval along the lower end side vicinity portion of the back surface. The plurality of receiving portion forming protrusions 1 protruded in
06.

When attaching the plastic architectural decorative plate 101 to a wall or the like of a building, the first plastic architectural decorative plate 101 is positioned, and then a mounting hole formed in the upper edge portion 104 is formed. The second plastic architectural decorative plate 101 is fixed to the wall or the like by nailing using 107, and then the second plastic architectural decorative plate 101 is disposed above the first plastic architectural decorative plate 101, and is received. The upper edge portion 104 of the first plastic architectural decorative plate 101 is fitted into the guide groove 106a of the component forming projection 106, and its tip is brought into contact with the wall surface of the guide groove 106a for positioning. The plastic architectural decorative plate 101 is fixed to the wall surface by nailing or the like as described above (see JP-A-7-217059).

[0004]

In the above prior art,
In order to provide a plastic architectural decorative board with sufficient mechanical strength as an outer wall material, it is necessary to increase the wall thickness, but as a result, the weight increases and the handling is inconvenient. In addition, there is a problem that the heat insulation and the fire resistance are insufficient.

The present invention has been made in view of the above-mentioned problems of the prior art, and has as its object to realize a plastic architectural decorative board which is lightweight and has excellent heat insulating properties. .

[0006]

In order to achieve the above object, a plastic architectural decorative plate according to the present invention comprises: a front wall having a block-shaped raised surface defined by a joint-like surface; A back wall opposed to the front wall at an interval, and a connection margin continuously provided on the periphery of the front wall and the back wall, wherein the inside is a hollow double-walled structure having a hollow inside. It is a feature.

[0007] Further, a concave rib depressed toward the front wall is formed on the back wall.

[0008] Further, a plurality of protruding portions protruding toward the opposite side of the front wall are formed on the back wall at intervals.

[0009] In addition, a plurality of projecting portions projecting to the side opposite to the front wall are formed at portions of the back wall facing the joint wind surface formed on the front wall.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of a plastic architectural decorative plate according to the present invention will be described with reference to the drawings.

As shown in FIG. 1, a plastic architectural decorative plate P has a front wall 1 and a back wall 2 opposed to each other at an interval.
The inside is a hollow double-walled structure including a connecting margin 3 to 6 described below, which is provided continuously to the peripheral portions of the front wall 1 and the back wall 2. The front wall 1 is formed with a plurality of block-shaped raised surfaces 1a partitioned by a joint wind surface 1b, while the back wall 2 has a plurality of counter surfaces at portions opposed to the joint wind surface 1b. Protrusions 2b protruding toward the front wall are formed at an interval from each other, and concave ribs 2a recessed toward the front wall are formed.

In the present invention, the reason why the plurality of projecting portions 2b projecting from the back wall 2 to the side opposite to the front wall are formed at an interval from each other is that, as described later, the architectural decorative plate P is formed on the wall surface of the building. This is because, when pasting, a gap is formed between the wall and the like, and air is circulated through the gap to prevent dew condensation.

Therefore, a plurality of protruding portions 2b protruding to the opposite side of the front wall can be formed at arbitrary portions of the back wall 2, but in the present embodiment, they face the joint wind surface 1b of the back wall 2. Formed at the site.

The concave rib 2a is formed for reinforcement. However, as in the present embodiment, if the tip of the concave rib 2a is brought into contact with the back surface of the front wall 1a, the plastic architectural decoration is formed. The mechanical strength such as the rigidity of the plate P is further increased.

As shown in FIG. 2, a margin 3 connected to the upper edge portion (hereinafter referred to as an "upper margin") is formed on the back surface side of the joint wind surface 1b at the upper edge portion. Groove 3
and a backing portion 3b bent outwardly in parallel with the back wall 2 following the fitting groove portion 3a, and a plurality of mounting holes 7 are provided in the upper margin 3 at intervals in the longitudinal direction thereof. Is provided.

In this embodiment, a plurality of legs 3c projecting from the backing portion 3b to the side opposite to the front wall are provided at intervals from each other.

As shown in FIG. 2, a margin 4 connected to the lower edge portion (hereinafter, referred to as a "lower margin") has a front wall side outward following the folded surface of the raised surface 1a. A bent portion 4a and a step portion 4b that is recessed toward the front wall formed on the back wall that forms a surface parallel to the bent portion 4a.
And an end wall portion 4c for closing the distal ends of the bent portion 4a and the step portion 4b.

A margin (hereinafter, referred to as a margin) connected to the right edge
"Right margin". As shown in FIG. 1C, 5 is a backing portion 5a in which the front wall side is bent outward following the folded surface 1c of the raised surface 1a, and the same surface as the top surface of the protruding portion 2b. Frame part 5 whose back wall side is bent so that
b and an end wall portion 5c for closing the front end portions of the backing portion 5a and the frame portion 5b.

The lower end of the right margin 5 is missing at least by a length corresponding to the projecting length (width) of the upper margin 3.

A margin (hereinafter, referred to as a margin) connected to the left edge
"Left margin". 6) The joint wind portion 6a bent outward so that the front wall side is flush with the joint wind surface 1b following the turnover surface of the raised surface 1a, and is flush with the top surface of the protruding portion 2b. 6b recessed from the outer edge of the frame-like portion 2c whose back wall is bent toward the front wall, and the end wall 6c for closing the joint wind portion 6a and the distal end of the step 6b.
Consists of

In the present invention, it is preferable that the plastic decorative board P for building is integrally formed by extrusion blow molding of a thermoplastic resin.

Regarding the function of the plastic architectural decorative plate P of the present embodiment, it is assumed that the three plastic architectural decorative plates P _{1 to} P ₃ shown in FIG. This will be described using an example.

[0023] (1) wall surface of the first sheet of plastic building decorative panel P ₁ of the positioning on the wall by a fastening means such as screws 8 by use of the mounting hole 7 which is provided above the margin 3 Etc.

(2) After the above (1), the second plastic architectural decorative plate P ₂ is arranged above the _first plastic architectural decorative plate P ₁ , and a margin 4 below the _first plastic architectural decorative plate P _1. Is inserted into the fitting groove 3a of the upper margin 3 of the _first plastic building decorative plate P1 and positioned, and then the upper margin 3 of the _second plastic building decorative plate P2 is attached. It is fixed to the wall surface by a fixing means such as a screw 8 using the hole 7.

[0025] Since the missing by a length corresponding to the lower end of at least the projecting length of the upper margin 3 of the right margin 5 (width), the second sheet of plastic building decorative panel P ₂ of There is no interference between the right margin 5 and the upper margin 3 of the _first plastic decorative board P1.

[0026] (3) After the above-mentioned (2), the third piece of plastic architectural decorative plate P ₃ placed on the first sheet of the right-hand side of the plastic architectural decorative plate P _1, then the first sheet of plastic To the architectural decorative plate P ₁
Th After positioning the left margin 6 plastic architectural decorative panel P ₃ to the first sheet of the right margin 5 architectural decorative panel P ₁ are overlapped, the mounting holes of the margin 3 of the upper 7 is fixed to the wall surface or the like by fixing means such as a screw 8.

[0027]

Since the present invention is configured as described above, the following effects can be obtained.

Since the inside is a hollow double-walled structure having a hollow interior, it is lightweight and has excellent heat insulating properties.

Further, it is possible to improve the fire resistance by filling the hollow portion with a self-extinguishing agent, water, or the like.

[Brief description of the drawings]

FIG. 1 shows an embodiment of a plastic decorative plate for a building according to the present invention, wherein (a) is a schematic front view thereof, (b) is a schematic partial sectional view taken along line AA of (a), (C) is a schematic partial sectional view along the line BB of (a).

FIG. 2 shows a plastic architectural decorative board shown in FIG.
It is a schematic partial perspective view for demonstrating the procedure at the time of sheet connection.

3A and 3B show an example of a conventional plastic decorative plate for construction, wherein FIG. 3A is a schematic rear view, FIG. 3B is an enlarged partial cross-sectional view showing a projection for a receiving portion configuration, and FIG. FIG. 4 is an enlarged partial rear view showing a portion of a projection for use.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Front wall 1a Embossed surface 1b Jointed wind surface 1c Turned surface 2 Back wall 2a Concave rib 2b Projection 2c, 5b Frame 3-6 Margin 3a Fitting groove 3b, 5a Backing 3c Leg 4a Bending Part 4b, 6b Step part 4c to 6c End wall part 6a Joint wind part 7 Mounting hole 8 Screw

Claims (5)

[Claims] 1. A front wall having a block-shaped raised surface defined by a joint wind surface, a back wall facing the front wall at an interval, and peripheral portions of the front wall and the back wall. A decorative margin for plastics, characterized in that it has a connecting margin continuously provided on the inside thereof and is a hollow double-walled structure having a hollow inside. 2. The decorative plate according to claim 1, wherein a concave rib is formed on the back wall so as to be depressed toward the front wall. 3. The plastic architectural decorative plate according to claim 1, wherein a plurality of projecting portions projecting toward the opposite side of the front wall are formed on the back wall at intervals. 4. A plastic building according to claim 3, wherein a plurality of protruding portions projecting toward the opposite side of the front wall are formed at portions of the back wall facing the joint wind surface formed on the front wall. Decorative plate. 5. The plastic decorative board according to any one of claims 1 to 4, wherein the thermoplastic resin is integrally formed by extrusion blow molding of a thermoplastic resin.