JPH1046675A - Decorated board mounting structure and mounting method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To make it possible to mount a decorated board definitely by forming a fixture hole whose bottom is wider than an opening, in a relatively soft panel and filling up a fixture material therein and inserting and curing fixture hardware projected from mounting hardware buried in a decorated board. SOLUTION: An offset area is provided on both sides of a board-like central part 4a, thereby forming an overhanging section 4b. Mounting hardware 4 is manufactured by welding a nut 4d with the rear surface of a hole 4c bored in the central part 4a. At first, the mounting hardware 4 is buried at the hour corners of a decorated board 1 while only the central part 4a is exposed to the surface. An axial part 5b of fixture hardware 5b is engaged with the nut 4b. A part of the axial part 5b and the head 5a are projected from the decorated board 1. Then, a fixture hole 3, whose base 3a is wider than the opening 3b, is formed at a specified position of a lightweight cellular concrete panel (hereafter called as the panel) and a fixture material 6 is filled up therein. A fixing layer is formed with a bonding material 7 on the panel 2. The projected portion of the fixture hardware 5 is inserted into the fixture hole 3, thereby mounting the decorated board 1 and adjusting the level or the position. When cured, the fixing material 6 and the bonding materials 7 are hardened.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure for attaching a decorative panel to a lightweight cellular concrete panel used for an outer wall, a partition wall and the like of a building.

[0002]

2. Description of the Related Art A conventional decorative plate mounting structure is disclosed in, for example, JP-A-5-33462. This decorative panel mounting structure is to directly attach a decorative panel to a concrete building frame, project a connecting material on the back surface of the decorative panel, and insert it into a cylindrical fixing hole provided in concrete. . The fixing hole is filled with a filling and fixing agent such as an epoxy resin in advance, and the inserted connecting material is embedded in the filling and fixing material. Then, the decorative panel can be fixed to the concrete building frame by curing and curing the filling and fixing material for a predetermined time.

[0003]

However, in the concrete frame shown in the above-mentioned conventional example, since the surface of the concrete has a predetermined strength, even if the fixing hole is a straight cylindrical fixing hole, the filling fixing material and the concrete are not used. Although the surface is securely bonded, when the decorative panel is attached to a lightweight cellular concrete panel, the surface is soft, so when the above-described conventional structure is applied to the lightweight cellular concrete panel, the connecting material hardens from the fixing hole. There is a possibility that the filled fixing material may easily come off.

Accordingly, an object of the present invention is to provide a decorative panel mounting method capable of securely fixing a decorative panel even when a decorative panel is mounted on a relatively soft panel such as a lightweight cellular concrete panel.

[0005]

SUMMARY OF THE INVENTION The present invention relates to a structure for attaching a decorative panel to a lightweight cellular concrete panel, wherein a fixing metal is fixed to the decorative panel so as to protrude from a fixing portion thereof. The present invention solves the above-mentioned problem by proposing a decorative plate mounting structure in which the fixing unit is embedded and fixed in an enlarged fixing hole provided on a surface.

Further, if the fixing portion of the fixing metal has a structure having an enlarged portion which becomes wider toward its tip,
Further, the mounting of the decorative board can be more reliably performed.

Further, by further fixing the front surface of the lightweight cellular concrete panel and the back surface of the decorative panel, the mounting of the decorative panel can be more reliably performed.

[0008] As a method of concretely constructing the decorative panel mounting structure, the fixing metal is fixed to the decorative panel by projecting a fixing portion thereof, and the inside of the lightweight foam concrete panel formed on the decorative panel mounting surface is enlarged. The fixing hole is filled with a curable fixing material, and before fixing the fixing material, the fixing portion of the fixing metal is buried in the fixing material in the fixing hole to fix the decorative plate to the lightweight cellular concrete. A board mounting method is proposed.

When the decorative panel is attached to the lightweight cellular concrete panel, a fixing material layer is provided on the decorative panel mounting surface of the lightweight cellular concrete panel, and the light-weight cellular concrete panel and the decorative panel are further provided. It can also be fixed in a planar manner.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a sectional view of a lightweight cellular concrete panel showing a decorative plate mounting structure of the present embodiment, FIG. 2 is an explanatory view showing another example of a sectional shape of a fixing hole, and FIG. 3 is an explanatory view showing a structural example of a fixing hole. FIG. 4 is a perspective view of the fixing hardware and the mounting hardware.

As shown in FIG. 1, a fixing hole 3 is formed at a predetermined position in a lightweight cellular concrete panel (hereinafter simply referred to as a panel) 2 to which a decorative board 1 is attached. Further, a mounting hardware 4 is embedded in the decorative board 1, and the fixing hardware 5 in the form of a bolt is screwed into the mounting hardware 4 from the outside, so that the fixing hardware 5 protrudes from the surface of the decorative board 1. It has a structure.

The fixing hole 3 of the decorative plate 1 has an overhang shape in which the bottom 3a is formed wider than the opening 3b and the inside is enlarged. The cross-sectional shape of the fixing hole 3 has a structure in which the side surface 3c is formed only with an inclined surface as shown in FIG. It may be composed of a vertical surface near 13b and an inclined surface near bottom 13a. Also, as shown in the fixing hole 23 shown in FIG.
It can also be composed of a narrow vertical plane near 23b and a widened vertical plane near bottom 23a. As a modification of (b), a structure in which an inclined surface is provided between two vertical surfaces of a bottom portion 33a and an opening portion 33b of the side surface 33c, like the fixing hole 33 shown in FIG. Further, as in the fixing hole 43c shown in FIG. 3D, the side surface 43c on the opening 43b side may be a vertical surface, and the side surface 43c near the bottom portion 43a may be provided with a semicircular protrusion.

As shown in FIGS. 3 (a) and 3 (b), the fixing holes may have any of a hollow independent fixing hole structure and a groove-shaped fixing hole structure. FIG. 1A shows the fixing hole 3 as an independent hole, the bottom 3a of which is wider than the opening 3b and has a shape in which the inside is conically enlarged. In order to open the fixing hole 3, a cutting tool having a scalable cutting blade is attached to the tip of the drill, thereby performing cutting. Since the lightweight cellular concrete panel 2 is soft, the fixing hole 3 whose interior is enlarged can be easily formed.

The shape of the fixing hole can be selected from various shapes such as an elliptical shape, a square shape, and a polygonal shape, in addition to the simple circular shape described above. In the case where the fixing hole has such a structure, the fixing hole 3
Are formed at predetermined positions so as to correspond to the respective fixing hardwares 5 of the decorative plate 1.

The fixing hole may be a groove-like fixing hole 53 as shown in FIG. In the case of this fixing hole 53, the bottom 53
a is a groove having a trapezoidal cross section wider than the opening 53b, and the inside is enlarged. If the fixing hole is used,
As in the case of the fixing hole 3 in (a), after the panel is manufactured, it can be formed afterward using a groove cutting tool, or it can be provided at the same time as the panel is manufactured. With such a groove-like shape, in addition to the fixing holes 3 shown in FIG.
It can also be formed as a continuous hole.

Each of these fixing holes 3, 13, 23, 33, 4
Also in the case of 3 and 53, the size of the opening is slightly larger than that of the fixing hardware 5, and when the fixing hardware 5 is inserted, play is generated.

The structure of the mounting hardware 4 and the fixing hardware 5 will be described with reference to FIG. The mounting hardware 4 forms a projecting portion 4b having a step on both sides of a plate-shaped central portion 4a, and when embedded in the decorative plate 1, only the surface of the central portion 4a is the surface of the decorative plate 1. And the overhang portions 4b on both sides are buried in the decorative board 1,
Even if an external force is applied, the mounting hardware 4 does not easily fall off the decorative board 1. A hole 4c is drilled in the center of the central portion 4a, and a nut 4d is fixed to the back surface corresponding to the hole 4c by welding or the like.

The fixing metal member 5 is a bolt-shaped metal member having a head portion 5a and a shaft portion 5b. The fixing hardware 5 is connected to the mounting hardware 4 by screwing a screw cut at the tip of the shaft portion 5b to the nut 4d via the hole 4c of the mounting hardware 4. In this case, a part of the shaft part 5b and the head part 5a of the fixing hardware 5 project from the decorative plate 1, and this part serves as a fixing part. Also, of this portion, the head portion 5a having a larger diameter than the shaft portion 5b becomes an enlarged portion.

Although the mounting hardware 4 is embedded in the four corners of the decorative board 1, the number and position of the mounting hardware 4 can be set arbitrarily according to the size and weight of the decorative board 1. Further, the fixing hardware 5 is connected to the decorative board 1 via the mounting hardware 4, but it is needless to say that the fixing hardware 5 may be directly fixed to the decorative board 1. Further, the mounting hardware 4 and the fixing hardware 5 can be formed of a material other than metal, such as reinforced plastic, as long as the strength is sufficient.

Hereinafter, a method of mounting a decorative board having the above structure will be described. First, the tip of the shaft portion 5b of the fixing hardware 5 is screwed and attached to the mounting hardware 4 embedded in the decorative board 1. In this state, a part of the shaft 5b of the fixing hardware 5 and the head 5a
Are projected from the decorative board 1.

Next, the fixing material 6 is filled in the fixing hole 3 formed at a predetermined position of the panel 2 as described above. The fixing material 6 is made of a material having fluidity at first, such as mortar, epoxy resin, urethane resin, and adhesive, which hardens later to exhibit strength.

Subsequently, an adhesive 7 is further applied on the panel 2, a fixing layer is formed, and the decorative plate 1 is attached to the panel 2 so that the fixing hardware 5 protruding from the decorative plate 1 is inserted into the fixing hole 3. Attach. At this time, since there is play between the fixing hardware 5 and the fixing holes 3, the work can be performed while adjusting the horizontal and the position of the decorative board 1. Then, the fixing material 6 and the adhesive material 7 are cured and hardened for a predetermined time to complete the mounting operation.

In this decorative plate mounting structure, the fixing material 6 connects the fixing hardware 5 to the panel 2, but the cured fixing material 6 becomes a conical solid in the fixing hole 3, so that the opening 3b is narrow. It mechanically meshes with the fixed fixing hole 3, and exhibits excellent mounting strength due to the shape effect in addition to the adhesive force of the fixing material 6 itself. Further, since the head 5a of the fixing metal 5 is an enlarged portion, when the fixing material 6 is hardened, this portion serves as an anchor to prevent the fixing metal 5 from coming off from the fixing material 6. .

The adhesive 7 forming the fixing layer between the decorative board 1 and the panel 2 can be selected from various kinds of adhesives such as cement type, organic type and the like. Needless to say, a material may be used. When the decorative board 1 is light and the adhesive strength between the decorative board 1 and the panel 2 is not so required, the use of the adhesive 7 may be omitted.

As described above, depending on the decorative plate mounting structure and mounting method of the present embodiment, the bottom 3a of the fixing hole 3 is an overhanging hole that is wider than the opening 3b, so that the fixing hole 3 has a larger size than a PC plate or the like. Thus, even if the relatively lightweight lightweight cellular concrete panel 2 is an object to which a decorative panel is to be attached, it is possible to secure a predetermined strength and securely attach it. On the other hand, since the lightweight cellular concrete panel 2 is soft, the fixing hole 3 which is the above-mentioned overhang hole can be easily formed by using a cutting tool.

Further, since the fixing hole 3 has a play with respect to the fixing hardware 5 inserted therein, the horizontal adjustment and the position adjustment of the decorative board can be easily performed before the fixing material 6 is hardened when the decorative board is attached. This can improve the mounting accuracy of the decorative board.

Further, a bolt is provided between the decorative plate 1 and the panel 2,
Since there is no direct mechanical attachment with nuts or screws, and all the attachment work is performed on the front side of the panel, work efficiency is excellent. Further, since the decorative board 1 is brought into close contact with the panel 2, there is also an effect that there is no need to adjust the entrance and exit of the decorative board 1.

Further, since the entire fixing portion of the fixing metal 5 is accommodated in the fixing hole 3, the decorative plate 1 and the panel 2 can be in close contact with each other, and the wall thickness is reduced. Also, there is an effect that a wide effective area of the building can be secured.

Further, in the structure of the present embodiment, since the entire decorative board 1 is fixed to the panel 2 in close contact with the adhesive 7, even if an external force is applied to the decorative board 1, it is easily broken. Disappears. For this reason, panels with decorative panels can be stacked flat, the efficiency of stacking at the factory is high, and a large number of sheets can be stacked, so that transportation costs can be reduced, and furthermore, at the work site Even in the case of temporary placement, there is an effect that no material space is required.

[0030]

As described above, according to the decorative plate mounting structure and the mounting method of the present invention, since the fixing hole is formed so that the inside thereof is enlarged, the object to which the decorative plate is mounted is soft. Even in the case of a lightweight cellular concrete panel, since the fixing material hardened inside meshes with the fixing holes in shape, the decorative board can be securely and sufficiently attached.

Further, if the fixing portion of the fixing hardware is provided with an enlarged portion, the enlarged portion serves as an anchor in the hardened fixing material, so that the connection between the fixing metal and the fixing material can be more reliably performed. It can be.

Further, when a fixing layer is formed between the decorative panel and the lightweight concrete panel, and the decorative panel is fixed in a planar manner, even if an impact force is applied to the decorative panel, the decorative panel is hardly cracked.
Moreover, even if it is broken, a part of the part does not fall off, and the mounting structure and the mounting method can be further improved in mounting strength of the decorative board.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a lightweight cellular concrete board showing a decorative board mounting structure of the present embodiment.

FIG. 2 is an explanatory diagram illustrating another example of a cross-sectional shape of a fixing hole.

FIG. 3 is an explanatory view showing a structural example of a fixing hole.

FIG. 4 is a perspective view of a fixing hardware and a mounting hardware.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Decorative board 2 ... Panel (lightweight cellular concrete panel) 3, 13, 23, 33, 43, 53 ... Fixing hole 3a, 13a, 23a, 33a, 43a, 53a ... Bottom part 3b, 13b, 23b, 33b, 43b, 53b Opening 4 Mounting hardware 5 Fixing hardware 5a Head (enlarged portion) 5b Shaft 6 Adhesive 7 Adhesive

Claims (5)

[Claims] 1. A structure in which a decorative panel is attached to a lightweight cellular concrete panel, wherein a fixing metal is fixed to the decorative panel so as to protrude from a fixing portion thereof, and an inner portion provided on a decorative panel mounting surface of the lightweight cellular concrete panel. The decorative plate mounting structure, wherein the fixing portion is embedded and fixed in the enlarged fixing hole. 2. The decorative plate mounting structure according to claim 1, wherein the fixing portion of the fixing metal has an enlarged portion that becomes wider toward its tip. 3. The decorative panel mounting structure according to claim 1, wherein a surface of the lightweight cellular concrete panel and a surface of the decorative panel are further fixed. 4. A method for attaching a decorative panel to a lightweight cellular concrete panel, wherein the fixing metal is fixed to the decorative panel by protruding a fixing portion thereof, and the interior formed on the decorative panel mounting surface of the lightweight cellular concrete panel is enlarged. The fixing hole is filled with a curable fixing material, and before the fixing material is cured, the fixing portion of the fixing metal is buried in the fixing material in the fixing hole to fix the decorative plate to the lightweight cellular concrete panel. A decorative board mounting method characterized by performing. 5. When the decorative panel is attached to the lightweight cellular concrete panel, a fixing material layer is provided on the decorative panel mounting surface of the lightweight cellular concrete panel, and a space between the lightweight cellular concrete panel and the decorative panel is further provided. The method according to claim 4, wherein the decorative plate is fixed in a planar manner.