JP2001262811A - Method of fixing decorative panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method of fixing a decorative panel, by which the decorative panel is not damaged even by using normal hexagon bolts and washers when the decorative panel made of concrete is fixed onto the wall surface of a structure and which is simple, efficient and economical. SOLUTION: An insert fitting 10 in which a collar section 12 is installed at one end of a pipe section 11 is buried into the decorative panel 2 so that the collar section 12 is positioned on the surface side in the decorative panel 2 and the other end of the pipe section 11 is exposed from the rear of the decorative panel 2 in approximately the same surface. In the decorative panel 2, the hexagon bolt 5 is inserted into the inserting hole 13 of the pipe section 11 opened to the collar section 12 of the insert fitting 10, and fixed onto an anchor 4 previously mounted on the structure 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of attaching a decorative concrete panel to a wall of a concrete structure such as a building or a retaining wall.

[0002]

2. Description of the Related Art Conventionally, a plurality of decorative panels having excellent design are attached to the exposed wall of a cocrete of a structure such as a building or a retaining wall, and a pattern imitating a natural stone or the like is formed. Coloring is commonly performed.

[0003] Various types of such decorative panels are known. Particularly, in the case of exterior wall surfaces,
A decorative panel made of lightweight cellular concrete or ordinary concrete is generally used. For example, a decorative panel made of concrete made by kneading silica sand or glass fiber with ordinary Portland cement and embedding a stainless steel net or the like in the interior is known as an exterior for a retaining wall or a concrete wall of a seawall.

When such a decorative panel made of concrete is mounted on the wall of a structure, an elastic adhesive or mortar having excellent adhesive strength against vibration, impact, and expansion and contraction of the material is applied to the back of the decorative panel. Adhesively fixed,
It was mechanically fixed using screws, bolts and anchors.

[0005] For example, as shown in FIG. 3, an anchor 4 is driven into the wall surface of the structure 1, and an insertion hole 2 a is provided in a corresponding position of the decorative panel 2 in advance. Thereafter, the back surface of the decorative panel 2 is bonded and fixed to the wall surface of the structure 1 with an adhesive 3, and a hexagon bolt 5 passed through a washer 6 is inserted into the insertion hole 2 a of the decorative panel 2 from the front side.
Is fixed to the anchor 4 to fix the decorative panel 2 to the wall surface of the structure 1.

[0006]

When a decorative panel made of concrete is fixed to a wall of a structure, a method using a normal hexagon bolt and a washer as described above is simple.
When the hexagon bolt is excessively tightened, or when the wall surface of the base is not flat, there is a major drawback that the decorative panel is easily damaged.

That is, in FIG. 3, when the hexagonal bolt 5 is screwed into the anchor 4 provided on the structure 1, excessive stress is applied to the decorative panel 2 from the washer 6 if it is excessively tightened. , The decorative panel 2 was often damaged. In particular, if unevenness was locally present on the wall surface serving as the base, even if the height difference was about 5 mm, an excessive bending stress was applied to the decorative panel 2 and breakage was likely to occur.

The present invention has been made in view of such a conventional situation,
When fixing a decorative panel made of concrete to the wall of a structure, a simple, efficient and economical method of fixing a decorative panel that can eliminate damage to the decorative panel even with a normal hexagon bolt and washer. The purpose is to provide.

[0009]

In order to achieve the above object, the present invention provides a method for fixing a decorative panel made of concrete on a wall surface of a structure, which comprises an insert fitting having a flange at one end of a pipe portion. After embedding in the decorative panel, the flange is located on the surface side in the decorative panel and the other end of the pipe is exposed almost flush with the back surface of the decorative panel. A bolt is inserted from the panel surface side into the insertion hole of the pipe portion opened to the flange portion, and is fixed to an anchor provided in advance in the structure.

In the above method of fixing a decorative panel according to the present invention, the outer peripheral edge of the flange of the insert fitting is located outside the washer for the bolt inserted into the insertion hole of the pipe. . Preferably, the insert fitting has a plurality of through holes or a plurality of recesses in a flange portion thereof, and these through holes or the recesses are filled with a decorative panel.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present invention, insert metal fittings are embedded in a decorative panel made of concrete in advance to eliminate or reduce stress applied to the decorative panel when fixing the panel using hexagon bolts and washers. This is to prevent damage to the panel.

More specifically, one embodiment of the present invention will be described with reference to FIGS. As shown in FIGS. 1 and 2, the insert fitting 10 includes a pipe portion 11 having an inner diameter through which the hexagon bolt 5 can be inserted, and a rectangular or circular flange portion 12 fixed to one end of the pipe portion 11 by welding or the like. Have. Therefore, this insert fitting 10 includes the pipe 1
2 penetrates from one end to the other end.

The insert fitting 10 is connected to the decorative panel 2
At the time of forming, the flange portion 12 fixed to one end of the pipe portion 11 is located on the front side in the decorative panel 2 and the other end of the pipe portion 11 is exposed almost flush with the back surface of the decorative panel 2.
Embed in decorative panel 2. At this time, since the other end of the pipe portion 11 needs to be disposed substantially flush with the back surface of the decorative panel 2, the flange portion 12 and the decorative panel 2 on the back surface of the decorative panel 2 (the wall surface side of the structure 1) are formed. The length of the pipe portion 11 is appropriately adjusted so that the thickness becomes appropriate.

When the decorative panel 2 is formed, the flange 12 of the insert fitting 10 is buried so as not to be exposed on the surface of the decorative panel 2. The decorative panel 2 is formed so that the material slurry of the decorative panel 2 does not enter, and the portion is defined as a depression 2b. It is preferable that the depth of the depression 2b be such that the head 5a of the hexagonal bolt 5 used for fixing to the structure 1 later is sufficiently accommodated.

It is preferable that the insert fitting 10 be provided with a plurality of through holes 12a penetrating the flange 12 or a plurality of recesses (not shown) on the front or back surface of the flange 12. At the time of embedding in the decorative panel 2, the material slurry of the decorative panel 2 enters and fills the through holes 12a or the concave portions, so that the contact area between the insert fitting 10 and the decorative panel 2 increases, and the stress is dispersed. This is because the fixing of the insert fitting 10 to the decorative panel 2 can be more reliably performed.

As shown in FIG. 1, the decorative panel 2 in which the insert fitting 10 is embedded is brought into contact with the wall surface of the structure 1, and the panel surface is inserted into the insertion hole 13 opened in the flange 12 of the insert fitting 10. The hex bolt 5 can be inserted from the side via the washer 6 and fixed by the anchor 4 provided on the structure 1 in advance. At that time, by interposing the elastic adhesive 3 or mortar between the back surface of the decorative panel 2 and the wall surface of the structure 1, it is possible to further firmly fix both.

The pipe portion 11 of the insert fitting 10
Is buried in the thickness direction of the decorative panel 2 and the other end of the pipe portion 11 is arranged substantially flush with the back surface of the decorative panel 2, so that even when the hexagon bolt 5 is excessively tightened, the washer 6 The applied stress is received by the wall surface of the structure 1, so that the stress is not directly applied to the decorative panel 2, and the decorative panel 2 can be prevented from being damaged. The effect of preventing the decorative panel 2 from being damaged according to the present invention is the same even when there are local irregularities on the wall surface of the structure 1 as the base.

Further, the outer peripheral edge of the flange portion 12 of the insert fitting 10 is located outside the outer peripheral edge of the washer 6 passed through the hexagon bolt 5 inserted into the insertion hole 13 of the pipe portion 11. In general, M10-
Twelve hexagonal screws are used, with 40 washers at that time.
mm washer is used, but by making the flange 12 of the insert fitting 10 larger than the washer 6,
Since the applied stress can be dispersed, the decorative panel 2
It is even more effective in preventing breakage.

After the decorative panel 10 is fixed to the wall surface of the structure 1 as described above, the recess 2 in which the insert fitting 10, the hexagonal bolt 5, and the washer 6 are stored on the surface of the decorative panel 2.
a, mortar 14
It is preferable to shape the surface of the decorative panel 2 by backfilling (shown by a dotted line in FIG. 2).

[0020]

According to the present invention, when a decorative panel made of concrete is fixed to the wall surface of a structure, the stress applied to the decorative panel can be eliminated or reduced by using an insert fitting embedded in the decorative panel. Therefore, the decorative panel can be prevented from being damaged by using a normal hexagon bolt and a washer, and the decorative panel can be simply, efficiently, and economically fixed.

[Brief description of the drawings]

FIG. 1 is a schematic partially cutaway side view showing a fixed state of a decorative panel according to the method of the present invention.

FIG. 2 is a schematic bottom view showing an insert fitting used in the method of the present invention.

FIG. 3 is a schematic partially cutaway side view showing a fixed state of a decorative panel according to a conventional method.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Structure 2 Decorative panel 2a Insertion hole 2b Depressed hole 3 Adhesive 4 Anchor 5 Hexagon bolt 6 Washer 10 Insert fitting 11 Pipe part 12 Flange part 12a Through hole 13 Insertion hole

Claims (5)

[Claims] 1. A method of fixing a decorative panel made of concrete to a wall surface of a structure, comprising: an insert fitting provided with a flange at one end of a pipe, wherein the flange is located on a surface side in the decorative panel; After being embedded in the decorative panel so that the other end of the pipe part is exposed substantially flush with the back surface of the decorative panel, a bolt is inserted from the panel surface side into an insertion hole of the pipe part opened in the flange of the insert fitting. And fixing the decorative panel to an anchor provided on a structure in advance. 2. An outer peripheral edge of a flange of the insert fitting,
The method of fixing a decorative panel according to claim 1, wherein the decorative panel is located outside a washer for the bolt inserted into the insertion hole of the pipe portion. 3. The insert fitting has a plurality of through holes or a plurality of recesses in a flange portion thereof, and the through holes or the recesses are filled with a decorative panel. The method for fixing a decorative panel according to item 1. 4. The fixing of the decorative panel according to claim 1, wherein a back surface of the decorative panel and a wall surface of the structure are further fixed by an elastic adhesive or mortar. Method. 5. The method according to claim 5, wherein the flange of the insert is disposed in a recess provided on a surface side of the decorative panel, and after fixing the decorative panel to a wall surface, the recess is filled back with mortar. The method for fixing a decorative panel according to any one of claims 1 to 4.