JPH09317059A - Outer wall panel made of concrete - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the fall off and drop out of the outer wall panel made of concrete surely, even when a screw is not effective in an earthquake and, etc. SOLUTION: In an outer wall panel made of concrete joined by a facing plate 2 made of concrete to the surface of a framework 1, the installation of the facing plate 2 to the framework 1 is carried out by using a screw stopping and a bolt stopping through a plate 5 commonly. Thus, as the installation of the facing plate 2 to the framework 1 is carried out by using the screw stopping and the bolt stopping through the plate 5 commonly, even when the screw 12 is not effective in an earthquake, the fall off of the facing plate 2 can be prevented by a bolt 8. As the bolt 8 is used as a safe measure when the screw 12 is not effective and basically a screw stopping with an inexpensive cost is carried out, the increase of a production cost can be retrained.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a concrete outer wall panel.

[0002]

2. Description of the Related Art In a conventional concrete outer wall panel, a concrete surface plate such as an ALC veneer is joined to the surface of a frame using appropriate screws.

[0003]

However, when the surface plate is attached to the frame only by screwing, the quantitative safety standard that does not function due to deterioration of the screw is unclear.
Therefore, for example, it was not known whether the surface plate would fall off or drop when the screws did not work sufficiently in the event of an earthquake.

Accordingly, an object of the present invention is to provide a concrete outer wall panel which can surely prevent the concrete outer wall panel from falling off or dropping even when the screw does not work in an earthquake or the like.

[0005]

A concrete outer wall panel according to claim 1 is a concrete outer wall panel in which a concrete surface plate is joined to a surface of a frame, and the surface plate is attached to the frame with screws and bolts. It is characterized in that it is carried out by the combined use of a stop. in this way,
Since the surface plate was attached to the frame by using both screws and bolts, the bolts can prevent the surface plate from falling off even if the screws do not work in an earthquake.
In addition, since the bolt can be used as a safety measure when the screw does not work as described above and can be basically screwed at a low cost, an increase in manufacturing cost can be suppressed.

According to a second aspect of the present invention, in the concrete outer wall panel according to the first aspect, the screws are fastened from the front side of the face plate and the bolts are fastened from the back side of the face plate. in this way,
Since the front and back surfaces of the surface plate are fixed with bolts and screws, the surface plate is securely attached and the durability is improved. Further, only the screwing which is inconspicuous is performed from the front side of the surface plate, so that the appearance is not damaged. Further, since the screws are fixed from the front side of the surface plate in this way, when the surface plate is attached to one flange of the channel steel or the like forming the frame, the other flange does not interfere.
Therefore, the screwing operation can be easily performed regardless of the cross-sectional shape of the frame on the back side.

According to a third aspect of the present invention, in the concrete outer wall panel according to the first or second aspect, screws are fixed to the middle rail of the frame and bolts are fixed to the outer peripheral frame of the frame through the plate. In this way, the screwing is performed at the position of the middle crosspiece of the frame, and the easily cracked corners of the surface plate are always removed, so that cracks at the corners of the surface plate can be prevented. Further, since the bolting is performed on the outer peripheral frame of the framework via the plate, the plate can respond to expansion and contraction, deformation, etc. of the surface plate or the framework by absorbing external force.

According to a fourth aspect of the present invention, in the concrete outer wall panel, a supporting plate is attached to the lower surface of the lower frame of the framework according to the first, second or third aspect, and the lower surface of the surface plate is supported by the supporting plate. In this way, the supporting plate is attached to the lower surface of the lower frame of the frame, and the lower surface of the surface plate is supported by this supporting plate. You can Further, when the surface plate is attached to the frame, the surface plate can be positioned by the support plate, which improves workability.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION A concrete outer wall panel according to an embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a partially cutaway perspective view of a concrete outer wall panel of this embodiment. In this outer wall panel, as shown in FIG. 1, a concrete surface plate 2 is joined to the surface of a framework 1. The surface plate 2 is made of an ALC single plate, etc.
As shown in FIG.
Fixed at. The frame 1 is composed of an outer peripheral frame 3 and a plurality of middle rails 4 ... Arranged therein. The outer peripheral frame 3 includes an upper frame 3a,
It is framed by a lower frame 3b and a pair of vertical frames 3c, 3c.
Each member of the outer peripheral frame 3 and the middle rail 4 are formed of channel steel. Further, one of the joints is drawn and fitted, and fixed by welding or the like so that the outer surface of the flange of the channel steel to which the surface plate 2 is attached is flush. In FIG. 1, the surface plate 2
Has a thickness of 80 mm and the width of the channel steel is 100 mm.

Further, as shown in FIGS. 1, 2 and 5, a plurality of plates 5 ... Are fixed to the pair of vertical frames 3c, 3c of the outer peripheral frame 3 by welding or the like. This plate 5 has a substantially Z shape bent at the center, and one piece 5a projects into the outer peripheral frame 3 and the other side 5b of the vertical frame 3c is flush with the flange of the vertical frame 3c. It is fixed to the inner surface of the flange 3c. Further, a bolt insertion hole 6 is formed in one piece 5a, and the surface plate 2 corresponding to the bolt insertion hole 6 is formed.
The embedded nut 7 is embedded in the position of. Then, the front plate 2 is inserted through the bolt insertion hole 6 and screwed into the embedded nut 7, so that the surface plate 2 passes through the plate 5 and the vertical frame 3c.
Fixed to.

Further, as shown in FIG. 3, the lower frame 3 of the frame 1
A support plate 9 is attached to the lower surface of b. in this case,
The support plate 9 is fixed to the web of the lower frame 3b by welding or the like so as to project to the surface side of the framework 1, and supports the lower surface of the surface plate 2. Further, as shown in FIG. 1, a heat insulating material 10 is provided inside the framework 1, and an interior base material 11 is attached to the back surface of the framework 1.

Next, the assembly of this concrete outer wall panel will be described. After preliminarily framing the framework 1 as described above, screws 12 are screwed from the front side of the surface plate 2 and fixed to the middle crosspiece 4 with the surface plate 2 arranged at the bottom placed on the support plate 9. Further, the bolt 8 is passed through the bolt insertion hole 6 of the plate 5 from the back side of the surface plate 2 and screwed into the embedded nut 7. As a result, the bottom surface plate 2 is fixed to the surface of the framework 1. Next, another surface plate 2 is placed on this surface plate 2 and similarly fixed to the frame 1 with screws 12 and bolts 8, and a plurality of surface plates 2 are sequentially attached in the same manner. Then, the heat insulating material 10 is provided inside the framework 1, and the interior base material 11 is attached to the back surface of the framework 1.

According to this embodiment, since the surface plate 2 is attached to the frame 1 by using both screws and bolts, even if the screws 12 do not work due to an earthquake or the like, the bolts 8 can be used. It is possible to prevent the face plate 2 from falling off. Further, since the bolt 8 is used as a safety measure when the screw 12 is no longer effective as described above, and the screw can be basically fixed at a low cost, an increase in manufacturing cost can be suppressed.

Further, since the surface plate 2 is fixed from both the front and back sides with the bolts 8 and the screws 12, the surface plate 2 is securely attached and the durability is improved. In addition, since only the inconspicuous screwing is performed from the front side of the surface plate 2, the appearance is not damaged. Further, since the screwing is performed from the front side of the surface plate 2 in this way, when the surface plate 2 is attached to one flange of the channel steel forming the framework 1, the other flange does not interfere. Therefore, the screwing operation can be easily performed regardless of the cross-sectional shape of the framework 1 on the back side.

Further, the screwing is carried out at the position of the middle crosspiece 4 of the frame 1, and the fragile corners of the surface plate 2 are always removed, so that the corners of the surface plate 2 can be prevented from cracking. Further, since bolting is performed on the outer peripheral frame 3 of the frame 1 via the plate 5, it is possible to absorb external force by the plate 5 to deal with expansion / contraction, deformation, etc. of the surface plate 2 or the frame 1. it can. Further, a support plate 9 is provided on the lower surface of the lower frame 3b of the framework 1.
Since the lower surface of the front surface plate 2 is supported by the support plate 9, the support of the front surface plate 2 is in a stable state, and it can be reliably prevented from falling off. Further, when the surface plate 2 is attached to the frame 1, the surface plate 2 can be positioned by the support plate 9, and the workability is improved.

It should be noted that although the numbers of the surface plates 2 and the plates 5 are different from those of FIG. 1 for simplification in FIGS. 4 and 5, they may be any number.

[0017]

According to the concrete outer wall panel of the present invention, since the surface plate is attached to the frame by using both screws and bolts, the bolts can be used even when the screws do not work in an earthquake or the like. It is possible to prevent the surface plate from falling off. In addition, since the bolt can be used as a safety measure when the screw does not work as described above and can be basically screwed at a low cost, an increase in manufacturing cost can be suppressed.

According to the second aspect of the present invention, since the front and back surfaces of the surface plate are fixed with the bolts and the screws, the surface plate is securely attached and the durability is improved. Further, only the screwing which is inconspicuous is performed from the front side of the surface plate, so that the appearance is not damaged. Further, since the screws are fixed from the front side of the surface plate in this way, when the surface plate is attached to one flange of the channel steel or the like forming the frame, the other flange does not interfere. That is, the screwing operation can be easily performed regardless of the cross-sectional shape of the frame on the back side.

According to the third aspect of the present invention, the screwing is performed at the position of the middle crosspiece of the frame, and the corners of the surface plate that are easily broken are always removed. Therefore, the cracks at the corners of the surface plate can be prevented. In addition, since bolting is performed on the outer peripheral frame of the frame through the plate, it is possible to expand or deform the surface plate or the frame,
The plate can absorb external force and respond. In the present invention, the supporting plate is attached to the lower surface of the lower frame of the frame, and the lower surface of the surface plate is supported by this supporting plate. Therefore, the support of the surface plate is in a stable state, and the falling of the surface plate is surely prevented. be able to. Further, when the surface plate is attached to the frame, the surface plate can be positioned by the support plate, which improves workability.

[Brief description of drawings]

FIG. 1 is a partially cutaway perspective view of a concrete outer wall panel according to an embodiment of the present invention.

FIG. 2 is an enlarged view of a portion A in FIG.

FIG. 3 is an enlarged view of a portion B in FIG. 1;

FIG. 4 is a conceptual diagram of a surface plate of a concrete outer wall panel according to the embodiment of the present invention.

FIG. 5 is a conceptual diagram of a framework of a concrete outer wall panel according to the embodiment of the present invention.

[Explanation of symbols]

 1 Frame 2 Surface plate 3 Outer peripheral frame 4 Middle bar 5 Plate 8 Bolt 9 Support plate 12 Screw

Claims (4)

[Claims] 1. A concrete outer wall panel in which a concrete surface plate is joined to the surface of a frame, wherein the surface plate is attached to the frame by using both screws and bolts. panel. 2. The concrete outer wall panel according to claim 1, wherein the screws are fastened from the front side of the face plate and the bolts are fastened from the back side of the face plate. 3. A screw is fixed to the middle rail of the frame, and a bolt is fixed to the outer peripheral frame of the frame through a plate.
Or the concrete outer wall panel described in 2. 4. The concrete outer wall panel according to claim 1, wherein a support plate is attached to the lower surface of the lower frame of the frame, and the lower surface of the surface plate is supported by the support plate.