Fixing structure for wall panels

Abstract

This invention provides a fixing structure for wall panels that prevents large wall panels from falling off. [Solution] The wall panel P has engaging hardware 2 fixed to the upper and lower parts of its back surface, and an upper rail 3 and a lower rail 4 installed on the wall surface. The engaging hardware 2 has a panel fixing part 21 that abuts against the back surface of the wall panel P, an engaging piece 22 that extends downward parallel to the back surface of the wall panel P, and a stepped part 23 provided between the panel fixing part 21 and the engaging piece 22. It is fixed to the wall panel P via a rivet R that passes through the panel fixing part 21. The upper rail 3 and the lower rail 4 have a wall fixing part 41 that abuts against the wall surface, a hardware receiving part 42 that extends upward parallel to the surface of the wall surface, and a stepped part 43 provided between the wall fixing part 41 and the hardware receiving part 42. They are fixed to the wall surface via a screw V that passes through the wall fixing part 41. The lower end of the engaging piece 22 of the engaging hardware 2 is located in the space between the hardware receiving part 32 of the upper rail 3 or the lower rail 4 and the wall surface.

Description

Technical Field

[0001] The present invention relates to a fixing structure for a wall panel, which is an interior and exterior finishing material of a building, for fixing the wall panel to a wall surface.

Background Art

[0002] In recent years, the design of buildings has advanced, and the wall surfaces are often finished with large-sized ceramic or porcelain wall panels. As methods for fixing large-sized wall panels, there are a wet method using conventional mortar or cement, a fixing method using an adhesive sheet, a dry method (Patent Document 1) in which a metal fitting provided on the wall panel is engaged with a rail provided on the wall surface, and the like.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] These conventional fixing methods have the following problems. (1) In the case of fixing by the wet method, especially when used as an outer wall, regular inspections are required. (2) In the case of using an adhesive sheet, the adhesive force may decrease due to the influence of the environment such as temperature change and moisture, and there is a risk that the wall panel may fall off. (3) When providing a metal fitting on the wall panel, it is necessary to process a groove on the back surface of the wall panel, but depending on the thickness and material of the wall panel, it may be difficult to process the groove.

[0005] An object of the present invention is to provide a fixing structure for a wall panel that prevents the large-sized wall panel from falling off.

Means for Solving the Problems

[0006] The wall panel fixing structure of the present invention, made to achieve the above objective, is a wall panel fixing structure for fixing a wall panel to the wall surface of a building, comprising: an adhesive provided between the surface of the wall surface and the back surface of the wall panel; engaging fittings fixed to the upper and lower parts of the back surface of the wall panel, respectively; and an upper rail and a lower rail installed on the wall surface, wherein the engaging fitting comprises a panel fixing portion that abuts against the back surface of the wall panel; an engaging piece extending downward parallel to the back surface of the wall panel; and a stepped portion provided between the panel fixing portion and the engaging piece. The upper rail and the lower rail are fixed to the wall panel via rivets that pass through the panel fixing portion, and each has a wall fixing portion that abuts against the wall surface, a metal receiving portion that extends upward parallel to the surface of the wall surface, and a stepped portion provided between the wall fixing portion and the metal receiving portion, and are fixed to the wall surface via screws that pass through the wall fixing portion, and when the wall panel is fixed to the wall surface, the lower end of the engaging piece of the engaging hardware is located in the space between the metal receiving portion of the upper rail or the lower rail and the wall surface. The lower rail may have a panel support piece erected vertically at the lower end of the wall-fixing portion, and the lower end of the wall panel may be supported by the panel support piece while the wall panel is fixed to the wall. The adhesive may also be an elastic adhesive. The adhesive may be applied in a bead-like manner. [Effects of the Invention]

[0007] The present invention, by means of solving the above-mentioned problems, can achieve at least one of the following effects. (1) Even if the adhesive strength of the adhesive decreases and the wall panel detaches, there is no risk of the wall panel falling. (2) The lower end of the wall panel is supported by the panel support piece of the lower rail, so that the panel support piece acts as a positioning member in the height direction of the wall panel and prevents the wall panel from falling. (3) The adhesive is an elastic adhesive, and by applying it in a bead-like manner, the wall panels can move in the in-plane direction, allowing them to follow inter-story displacements such as those that occur during earthquakes. [Brief explanation of the drawing]

[0008] [Figure 1] Cross-sectional view of the fixing structure for wall panels of the present invention [Figure 2] Perspective view of wall panel, engagement hardware, upper rail and lower rail. [Figure 3] Perspective view of the fixing structure for wall panels of the present invention [Modes for carrying out the invention]

[0009] Embodiments of the present invention will be described below with reference to the drawings. [Examples]

[0010] [Example 1] <1> Configuration of the fixing structure for wall panels The wall panel fixing structure of the present invention involves fixing the wall panel P to the wall surface W via an adhesive 1, and fixing an engaging fitting 2 to the back of the wall panel, which engages with an upper rail 3 and a lower rail 4 installed on the wall surface W, thereby positioning the wall panel P along the wall surface W (Figures 1 and 2). The wall panel P is made of ceramic or porcelain and is a large panel, for example, 3000mm high, 1000mm wide, and 5-6mm thick. The engaging hardware 2 is fixed to the upper and lower parts of the back of the large wall panel P via rivets R. The upper rail 3 and lower rail 4 are fixed to the wall W via screws V. The upper rail 3 is fixed to the upper engaging fitting 2, and the lower rail 4 is fixed to the lower engaging fitting 2, respectively.

[0011] <2> related alloys The engaging hardware 2 is formed by bending a steel plate or stainless steel plate. The engaging metal object 2 has a panel fixing portion 21 that abuts against the back surface of the wall panel P, an engaging piece 22 that extends downward in parallel with the back surface of the wall panel P, and a step portion 23 provided between the panel fixing portion 21 and the engaging piece 22. The engaging metal object 2 is fixed to the wall panel P via a rivet R that penetrates the panel fixing portion 21. In this embodiment, the rivet R is embedded in the wall panel P, but it may also be provided so as to penetrate the wall panel P, or it can be fixed using bolts and nuts instead of the rivet R.

[0012] <3>Upper rail The upper rail 3 is a long member horizontally provided on the wall surface W, and is formed by bending a steel plate or a stainless steel plate. The upper rail 3 has a wall surface fixing portion 31 that abuts against the surface of the wall surface W, a metal object receiving portion 32 that extends upward in parallel with the surface of the wall surface W, and a step portion 33 provided between the wall surface fixing portion 31 and the metal object receiving portion 32. The upper rail 3 is fixed to the wall surface W via a screw V that penetrates the wall surface fixing portion 31.

[0013] <4>Lower rail Similar to the upper rail 3, the lower rail 4 is a long member horizontally provided on the wall surface W, and is formed by bending a steel plate or a stainless steel plate. The lower rail 4 has a wall surface fixing portion 41 that abuts against the surface of the wall surface W, a metal object receiving portion 42 that extends upward in parallel with the surface of the wall surface W, a step portion 43 provided between the wall surface fixing portion 41 and the metal object receiving portion 42, and a panel support piece 44 that stands vertically from the lower end of the wall surface fixing portion 41. The lower rail 4 is fixed to the wall surface W via a screw V that penetrates the wall surface fixing portion 41.

[0014] <5>Fixing structure of wall panel <5.1>Fixing with adhesive The wall panel P is fixed to the wall surface W via an adhesive 1 (Figs. 3(a)(b)). At this time, the adhesive 1 is an elastic adhesive, and by applying it in a bead shape, the wall panel P can move in the in-plane direction and can follow the inter-story displacement during an earthquake or the like.

[0015] <5.2> Engagement of the engaging hardware with the upper rail (Figure 3(a)) and the lower rail (Figure 3(b)) With the wall panel P fixed to the wall W, the lower end of the engaging piece 22 of the engaging hardware 2 is located in the space between the hardware receiving portion 32 of the upper rail 3 and the wall W, or in the space between the hardware receiving portion 42 of the lower rail 4 and the wall W. By engaging the engaging hardware 2 fixed to the wall panel P with the upper rail 3 and lower rail 4 fixed to the wall W, even if the adhesive strength of the adhesive material 1 decreases due to environmental factors such as temperature changes and humidity, and the wall panel P detaches from the wall W, there is no risk of the wall panel P falling downwards. Furthermore, when fixing the wall panel P to the wall W, the lower end of the wall panel P is supported by the panel support piece 44 of the lower rail 4, so that the panel support piece 44 acts as a positioning member in the height direction of the wall panel P and prevents the wall panel P from falling. Furthermore, by setting the length of the support piece 44 that extends from the lower end of the wall fixing part 41 so that it is not exposed from the surface of the wall panel P when the wall panel P is fixed to the wall W, the aesthetic appearance of the surface of the wall panel P is enhanced even when the wall panels P are fixed side by side.

[0016] When the wall panel P is fixed by adhesive 1, the engaging hardware 2, upper rail 3, and lower rail 4 are not directly engaged, and there is a gap between each piece of hardware. Therefore, accuracy errors in the surface of the wall W and mounting errors in the engaging hardware 2, upper rail 3, and lower rail 4 are tolerated by this gap. Furthermore, since the engaging hardware 2 does not come into contact with the upper rail 3 and lower rail 4, galvanic corrosion is less likely to occur even if the engaging hardware 2 and the upper rail 3 and lower rail 4 are made of dissimilar metals. [Explanation of Symbols]

[0017] 1 adhesive, 2 Engaging hardware, 21 Panel fixing part, 22 Engaging piece, 23 Stepped part 3 Upper rail, 31 Wall mounting part, 32 Metal fitting receiving part, 33 Stepped part 4 Lower rail, 41 Wall mounting part, 42 Metal fitting receiving part, 43 Stepped part, 44 Support piece

Claims

1. A wall panel fixing structure for fixing wall panels to the wall surface of a building, An adhesive is provided between the surface of the wall and the back surface of the wall panel, Engaging hardware to be fixed to the upper and lower parts of the back of the wall panel, It has an upper rail and a lower rail installed on the wall surface, The engagement fitting has a panel fixing portion that abuts against the back surface of the wall panel, an engagement piece that extends downward parallel to the back surface of the wall panel, and a stepped portion provided between the panel fixing portion and the engagement piece, and is fixed to the wall panel via a rivet that passes through the panel fixing portion. The upper rail and the lower rail each have a wall-mounting portion that abuts against the wall, a metal fitting receiving portion that extends upward parallel to the surface of the wall, and a stepped portion provided between the wall-mounting portion and the metal fitting receiving portion, and are fixed to the wall via screws that pass through the wall-mounting portion. With the wall panel fixed to the wall surface, the lower end of the engaging piece of the engaging hardware is positioned in the space between the hardware receiving portion of the upper rail or the lower rail and the wall surface. Fixing structure for wall panels.

2. The lower rail has a panel support piece that is erected vertically at the lower end of the wall-fixing portion, The wall panel is fixed to the wall surface, and the lower end of the wall panel is supported by the panel support piece. The fixing structure for a wall panel according to claim 1.

3. The adhesive is characterized by being an elastic adhesive. The fixing structure for a wall panel according to claim 1.

4. The adhesive is characterized by being applied in a bead-like manner. The fixing structure for a wall panel according to claim 1.

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