JP2952754B2 - Manufacturing method of decorative panel - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a decorative panel as an interior / exterior panel system for a building, for example, constituting a frame portion of a steel structure such as a high-rise building, a large span building, and a steel house. The present invention relates to a decorative panel applied to a steel material, and to a method for manufacturing a decorative panel having a decorative panel and a backing concrete. More specifically, in a formwork, a decorative board is laid out and a backup material is sandwiched between them, and a non-permeable coating material is applied to the back of the decorative board,
The present invention relates to a method for manufacturing a so-called prefabricated decorative panel in which reinforcing bars are laid from above and concrete is driven in, and this is used as a decorative panel with reinforced concrete containing reinforcing bars.

[0002]

2. Description of the Related Art A method of manufacturing a decorative panel of this kind is known. In the conventional method, as shown schematically in FIGS. At this time, a member 53 (see FIG. 12, hereinafter, referred to as a “backup material”) for forming a gap, that is, a joint between the decorative boards 52 is provided between the decorative boards 52 arranged in parallel. (Fig. 9). The backup material also determines the depth of the joint. Further, the joint is filled with the paste-like waterproofing material 54 from the back side of the decorative board 52 (FIG. 10), and thereafter, the backing concrete 55 with the reinforcing steel is formed by the formwork 51. The thus obtained uncured decorative panel 50 with backing concrete (FIG. 11) is
It is usual that the concrete is cured after being left outdoors for a few days with the tag attached.

In FIGS. 10 and 11, reference numeral 56 denotes an anchor for strengthening the engagement of the backing concrete 55 with the decorative board 52. The anchor 56 has its claw 56a locked by a locking groove 52a formed on the back surface of the decorative plate 52,
It is fixed to the decorative board 52 by the adhesive 57. FIG.
In the middle, 58 is a jointing material that is jointed for sealing after applying the decorative panel 50 to a cosmetic object not shown.

In the leaving step, a void is often formed between the waterproof material 54 and the backup material 53 in the uncured decorative panel with backing concrete. It is known to those skilled in the art that when a void is formed, water accumulates in the void, which increases the curing time of the concrete.

[0005] Further, after the manufactured decorative panel is applied to the decorative object, moisture such as rainwater infiltrates into the space between the joint material 58 and the waterproof material 54, and as a result, the peripheral portion of the joint is caused. It generates efflorescence (whitening phenomenon) and significantly impairs the appearance of the decorative panel.

[0006] As means for eliminating such a problem,
There is a method disclosed in Japanese Patent Application Laid-Open No. 1-148507, which discloses a method for manufacturing a decorative panel in which a paste-like injection material as a joint material and a waterproof material is filled up to near the surface of the decorative plate.

[0007]

However, according to the method disclosed in the above-mentioned publication (hereinafter referred to as "the latter"), depending on the type of the waterproofing material, a dark stain is generated around joints of the decorative panel, and the building panel is damaged. The problem of spoiling the appearance still remains.

[0008] In the latter, among the waterproofing materials, the silicone-based or modified silicone-based resin contains free silicone molecules, and when the free silicone molecules come into contact with rainwater, the periphery of the seam of the decorative panel in the decorative panel. It seems to be caused by the fact that airborne dust adheres to the air and contaminates it.

In addition, these silicone-based and modified silicone-based resins must be jointed and then cleaned as a finish, such as removal of joint droppings, and repair of unevenness, etc. Requires a high level of technology, the number of man-hours is high, and the efficiency is poor. The joint material is required to be finished without small irregularities or protrusions, and it is not easy to achieve this. The same applies to other paste joint materials such as two-pack type polysulfide resin, elastic epoxy resin, urethane resin, butyl rubber or polysulfide rubber.

The main object of the present invention is to provide a method of manufacturing a decorative panel which eliminates the above-mentioned problems, prevents efflorescence and dusting, and does not impair the aesthetic appearance.

Another object of the present invention is to simplify the installation of the decorative panel if necessary and to improve the work efficiency.

[0012]

In order to achieve the above object, a method of manufacturing a decorative panel according to the present invention comprises:
Lay out decorative panels and sandwich the backup material between them, apply a non-permeable coating material on the back of those decorative panels, arrange reinforcing bars and drive concrete from above,
In a method of manufacturing a decorative panel of a style in which this is used as a decorative panel with reinforced concrete containing reinforced concrete, in forming the reinforced concrete with reinforced concrete, the backup material is sandwiched between decorative boards laid in the formwork. A specification in which a gasket is inserted into a formed gap, wherein the gasket is formed at a plate-shaped first portion inserted into the gap, and at an end of the first portion corresponding to the back side of the decorative plate. A flange-shaped second portion and a sealing member for the gap formed in the first portion are provided, and the second portion is wider than the width of the gap. .

In the above method of manufacturing a decorative panel, a gasket having a flange-shaped third portion formed at the end of the first portion opposite to the second portion and having a width substantially equal to the gap between the decorative plates. It is desirable to use

In order to sufficiently prevent moisture from penetrating from the backing concrete to the decorative board in the second portion of the gasket, the surface of the second portion or the edge extending in the longitudinal direction of the portion is required. It is advisable to apply a waterproof material to cover.

[0015]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a method for manufacturing a decorative panel according to the present invention will be described below with reference to the drawings.

A decorative board 2 is laid at a predetermined position in a mold 1. At that time, the backup material 3 is sandwiched between the decorative boards 2. The purpose of use of the backup material 3 is the same as that of the conventional one. The decorative board 2 can be filled with a known material such as a natural stone or a ceramic board. An anchor 4 similar to the conventional one is attached to the back surface of the decorative boards 2 laid out, and fixed with an adhesive 5.

A water-impermeable coating material 6 is applied to the back surface of the decorative boards 2 arranged. The coating material 6 may be a known material such as a one-component modified silicone resin, a two-component elastic epoxy resin, a modified epoxy resin, or the like.

A gasket 7 is inserted into a gap X between the decorative boards 2 arranged in parallel (FIG. 2). As shown in FIG. 3, the gasket 7 includes a plate-shaped first portion 7a, a flange-shaped second portion 7b formed at an end of the first portion 7a corresponding to the back surface side of the decorative plate 2, and It has a tongue-shaped sealing member 7c for the gap X formed in the first portion 7a. On the opposite side of the first part 7a from the second part, its width W
2 preferably forms a flange-shaped third portion 7d which is substantially equal to the joint width M (FIG. 2).

The first portion 7a is formed narrower than the joint width M. The height H of the first portion 7a is a degree corresponding to the thickness of the decorative board 2 minus the thickness of the backup material 3, for example, the thickness of the decorative board 2 is 13 mm,
When the thickness of the backup material 3 is 5 mm, the height H is 8 mm.

It is desirable to form a protruding portion 7 b ′ projecting downward on the edge portion extending in the length direction of the second portion 7 b in order to improve the sealing property with respect to the back surface of the decorative plate 2.

The seal member 7c projects obliquely from both sides of the first portion 7a toward the second portion 7b, and has a width W1 slightly larger than the joint width M (for example, M is 8).
mm, W1 is 11 mm), and preferred examples include those shown in FIG. Seal member 7
c is not limited to one pair, and two pairs (FIG. 4) or more can be formed. A pair of seal members 7c is suitable for a shallow joint or a thin decorative panel, and a plurality of pairs is suitable for a deep joint or a thick decorative panel.

As a material of the gasket 7, chloroprene rubber is most preferable. The gasket 7 can be formed by extrusion molding or compression molding. When using the gasket 7 'by extrusion molding, a gasket 7 "having a cross shape in plan view as shown in FIG.
Each end of the four arms of the gasket 7 "and the gasket 7 '
Is fixed by heat welding or the like. Thus, decorative board 2
Can be obtained (FIG. 6).

The first portion 7a of the gasket 7 is pressed into the gap X until its base end surface (the lower surface in FIG. 3) contacts the backup material 3 and the second portion 7b contacts the back surface of the decorative plate 2. You. At this time, the seal member 7c formed on the first portion 7a is interposed so as to be pushed between the opposing inner surfaces of the joint.

As described above, the insertion of the gasket 7 into the gap X is performed by a simple operation of press-fitting the gasket 7 on the basis that the base end of the portion 7a contacts the backup material 3 and / or the contact of the portion 7b on the decorative board 2. Can regulate the depth.

Following the above-described preliminary step of forming the backing concrete, the reinforcing steel 9 is arranged, the concrete 10 is driven in, and left for several days.
Make a decorative panel with 1. A decorative panel with a reinforcing concrete-backed concrete 11 is taken out from a mold (not shown) to obtain a decorative panel shown in FIG. The anchor 5 and the reinforcing bar 9 are desirably mounted or arranged in a suspended state using a jig or the like from a peripheral form (not shown) so that these loads are not applied to the decorative plate 2.

The operation of the present invention will be described below.

In the above-mentioned production of the decorative panel with the reinforced concrete containing the reinforcing steel, the width of the gap formed at the predetermined side end of the first portion of the gasket inserted into the gap between the laminated decorative boards is determined. The wide flange-shaped second portion seals the backing concrete side of the gap by contacting the lower surface with the decorative plate rear surface. For this reason, the water-impermeable coating material is applied to the back surface of the decorative board, and the boundary of the decorative board to the backing concrete prevents water from penetrating from the backing concrete to the decorative board and to the joints. Further, even when the water-impermeable coating film on the back surface of the decorative board is a modified silicone resin, free components therefrom do not diffuse to the surface of the decorative board. This is because joints are sealed by the seal member of the gasket. Since there is no diffusion of the free components to the surface of the decorative board, there is no dust that has been seen in the past.

On the other hand, the seal member formed at the first portion of the gasket seals the joint by pushing in between the opposing inner surfaces of the joint as the gap. Therefore, rainwater or the like does not enter from the outside through the joint and accumulates at the joint.

Furthermore, the fact that the sealing of the joint can be achieved structurally without filling with the joint material, unlike the prior art, also eliminates the various problems described above caused by using the joint material.

Thus, according to the present invention, the efflorescence around the joints of the decorative panel is eliminated, and the previously described problems associated with the generation of voids that become water pools at the joints, which were conventionally seen, are eliminated. And the occurrence of dark stains around the joints can be eliminated.

According to the present invention, when a waterproof material is applied to cover the entire back surface of the second portion of the gasket or the edge extending in the length direction thereof, the sealing performance of the joint is improved.

At a predetermined side end of the first portion of the gasket,
When a flange-shaped third portion having substantially the same width as the joint width is formed, the gasket is pushed into the joint until the third portion contacts the backup material in the joint, so that the lower surface of the portion is formed. Plays the role of a good decorative joint without unevenness. Unlike the conventional joint material, it does not require the additional finishing and repair work described above, simplifies the installation of decorative panels, and improves work efficiency. Can be achieved.

[0033]

As described above, according to the first aspect of the present invention,
According to the method for manufacturing a decorative panel according to the above, it is possible to manufacture a decorative panel which prevents efflorescence and dusting and does not impair the aesthetic appearance.

According to the manufacturing method of the second aspect of the present invention, the construction of the decorative panel can be simplified and the work efficiency can be improved.

[Brief description of the drawings]

FIG. 1 is an explanatory view of a method for manufacturing a decorative panel according to the present invention, and is a partial longitudinal sectional view showing a state of an intermediate step thereof.

FIG. 2 is an explanatory view of a step following FIG. 1 and is a partial longitudinal sectional view.

FIG. 3 is a cross-sectional perspective view of a gasket used in the method for manufacturing a decorative panel according to the present invention.

FIG. 4 is a partial sectional perspective view corresponding to FIG. 3, showing another example of the gasket.

FIG. 5 is a plan view showing a connection mode of the gasket.

FIG. 6 is a plan view showing a part of the gaskets connected by the connection mode of FIG. 4 on different scales.

FIG. 7 is a longitudinal sectional view showing a part of a decorative panel manufactured by the method according to the present invention.

FIG. 8 is a perspective view showing the entire decorative panel manufactured by the method according to the present invention.

FIG. 9 is an explanatory view of a conventional method of manufacturing a decorative panel, and is a partial longitudinal sectional view showing a state of an intermediate step thereof.

FIG. 10 is an explanatory view of a step following FIG. 7, and is a partial cross-sectional view.

FIG. 11 is a partial cross-sectional view showing a decorative panel manufactured by a conventional method of manufacturing a decorative panel.

FIG. 12 is a perspective view showing a part of a backup material.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Formwork 2 Decorative panel 3 Backup material 4 Anchor 5 Adhesive 6 Non-permeable coating material 7 Gasket 7a 1st part 7b 2nd part 7c Sealing member 7d 3rd part 8 Waterproof material 9 Reinforcement 10 Concrete 11 Reinforcing Concrete molding containing

Claims (2)

(57) [Claims] 1. A decorative plate is laid in a formwork, a backup material is sandwiched between them, a non-permeable coating material is applied to the back surface of the decorative plate, and reinforcing steel reinforcement and concrete reinforcement are applied from above. In the method of manufacturing a decorative panel of a style in which a veneer is driven and this is used as a veneer with a backing concrete containing a reinforcing bar, the backup material is interposed between the veneer plates arranged in the form when forming the backing concrete with a reinforcing bar. A gasket is inserted into a gap formed by pinching the gasket, wherein the gasket has a plate-shaped first portion inserted into the gap, and an end corresponding to the back side of the decorative plate of the first portion. And a seal member for the gap formed in the first portion, the second portion being wider than the width of the gap. Method for producing a decorative panel characterized by and. 2. The method of manufacturing a decorative panel according to claim 1, wherein a third flange-shaped gasket is formed at an end of the first portion opposite to the second portion, the width being substantially the same as the gap between the decorative plates. A method for manufacturing a decorative panel, comprising applying a part having a part formed thereon.