JPH08302964A - Exterior panel of building and manufacturing method thereof - Google Patents

Abstract

(57) [Abstract] [Purpose] A convex arc-shaped curved surface 6b can be formed on the outer surface of the outer wall 6 in both the extrusion direction and the width direction of cement,
Provided is an exterior panel of a building, which can obtain a product having a long curved surface 6b. [Structure] As for an exterior panel of a building, a molded cement panel 1 in which a large number of holes 2 are aligned in the width direction is extruded to a required length from a die of an extruder, and an outer surface 6a of an outer wall 6 of the cement panel 1 is ground. By doing so, the convex arcuate curved surface 6b having the required curvature with the maximum amount of the ends and the minimum amount of the center can be formed in both the extrusion direction and the width direction of the cement, and in particular, a long convex arcuate curved surface 6b is formed in the extrusion direction. To be able to form.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an exterior panel made of an extruded cement panel and used for a building such as a high-rise building, and a method for manufacturing the exterior panel.

[0002]

2. Description of the Related Art Conventionally, as an exterior panel of a building, as shown in FIG. 5, a large number of holes 2 are arranged side by side in the width direction from a die of a cement extruder, and inner and outer walls 5 and 7 are opposed to each other.
There was a molded cement panel in which cement was extruded with the outer surface of the outer wall 7 having a convex arcuate curved surface whose center in the width direction bulges outward.

[0003]

However, in the conventional exterior panel described above, it is necessary to change the cross-sectional shape of the die of the extruder every time the curvature of the convex arcuate curved surface of the outer wall is different. There was a problem that different types of bases were needed. In addition, the conventional exterior panel cannot form the outer surface of the outer wall into a convex arcuate curved surface in the extrusion direction of the cement, and the width of the die of the cement extruder is limited. In the case of a building having a curved surface, there is also a problem that a large number of exterior panels are required.

The present invention solves the above-mentioned problems,
Does not require a large number of types of die, also in both the extrusion direction and the width direction of the cement, it is possible to form a convex arc-shaped curved surface on the outer surface of the outer wall, particularly by forming the curved surface in the extrusion direction of the outer surface, It is an object of the present invention to provide a building exterior panel and a method for manufacturing the same, which can obtain a product having a long length.

[0005]

An exterior panel of a building according to the invention of claim 1 is a flat extruded cement panel in which a large number of holes are arranged side by side in a width direction and inner and outer walls are opposed to each other in parallel. The outer surface of the outer wall is formed into a convex arcuate curved surface by grinding. In the exterior panel of the building according to the invention of claim 2, the cement is extruded from the die of the cement extruder, the plurality of holes are arranged side by side in the width direction, the inner and outer walls are opposed to each other in parallel, and the thickness of the outer wall is Molding process to obtain a flat molded cement panel of a required length thicker than the thickness of the inner wall, and after curing the cement panel, one of the extrusion direction and the width direction of the outer surface of the outer wall, with both ends as the maximum amount. And a grinding step of grinding into a convex arcuate curved surface having a required curvature with a minimum amount in the center.

[0006]

The exterior panel of the building according to the invention of claim 1 is
After molding a flat extrusion molded cement panel with the inner and outer walls facing each other in parallel, by grinding the outer surface of the outer wall of the molded cement panel, the extrusion direction of the molded cement panel and the width direction orthogonal to this direction In either case, the outer surface of the outer wall can be formed into a convex arcuate curved surface.

Further, it is possible to form a large number of convex arc-shaped curved surfaces having different curvatures on the outer surface of the outer wall of the molded cement panel without using a large number of types of caps as in the conventional molded cement panel described above. Then, it is possible to obtain a product in which a convex arcuate curved surface is formed in series on the outer surface of the outer surface of the molded cement panel having a long length in the extrusion direction.

The invention according to claim 2 is suitable for manufacturing the exterior panel of the building according to claim 1, and the thickness of the outer wall of the molded cement panel is made larger than the length of the inner wall, so that the outer wall of the outer wall is Even if the amount of grinding on both ends is increased, the strength of the outer wall can be sufficiently maintained. In particular, a convex arc-shaped curved surface is formed by grinding in the extrusion direction of the outer surface of the outer wall on a cement panel with a long extrusion direction length. It is suitable to do.

[0009]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a molded cement panel used in the first embodiment of the present invention. The molding process of this cement panel 1 is similar to the molding process of a conventional general molded cement panel, and the cement and an appropriate long fiber are used. The water-added material is put into a cement extruder (not shown), and is discharged from the die at high pressure to form a large number of rectangular holes 2 in the width direction at regular intervals, and projecting parts 3 are projected at one end, A concave portion 4 capable of receiving a convex portion is formed at an end portion, inner and outer side walls 5 and 6 are provided in parallel with each other, and an inner side wall 5 has a thickness of about 14 mm and a flat outer shape.

In the conventional cement panel,
The thickness of the outer wall is also 14 mm and the total thickness is 60 mm. However, in the cement panel 1 of this embodiment, the thickness of the outer wall 6 is made 3 to 12 mm thicker than the thickness of the conventional outer wall,
The entire thickness of the cement panel 1 is also increased by this amount.
The cement panel 1 obtained in the above-mentioned molding step is, after being hardened, by a grinding step as shown in FIGS. 2 and 3.
The outer surface 6a of the outer wall 6 is ground into a convex arcuate curved surface 6b having a required curvature with the maximum amount at both ends in the extruding direction, that is, the longitudinal direction, and gradually decreasing toward the center in the longitudinal direction.

In order to perform the grinding step, a grinding roll is passed over the cement panel 1 in a width direction perpendicular to the longitudinal direction of the cement panel 1, and a grinding roll such as a diamond grinding roll is manufactured by a copying method according to a model or a numerical control method. While rotating the shaft around the axis, the grinding roll is pressed onto the outer surface of the outer wall 6 to move the grinding roll in the longitudinal direction of the outer wall 6, whereby the outer surface of the outer wall 6 is curved in a convex arc shape with a required curvature. Grind to 6b.

After that, the convex arcuate curved surface 6b of the outer wall 6 is polished with a polishing roll, and if necessary, both end surfaces and both side surfaces of the cement panel 1 are polished, and the polished surface is painted. Alternatively, the exterior panel is completed by performing a finishing step of applying a decorative material such as a film. In the second embodiment according to the present invention, the molding cement panel 1 is molded in the same manner as in the first embodiment described above, and after hardening, the cement panel 1 is extruded by a grinding process as shown in FIG. The maximum amount of both ends in the width direction orthogonal to the direction, the amount is gradually decreased toward the center side in the width direction, and the convex arcuate curved surface 6b having the required curvature with the minimum amount at the center is ground.

In the grinding step, except for passing the grinding roll in the extrusion direction perpendicular to the width direction of the cement panel 1,
The same process as in the first embodiment described above is carried out, and thereafter, finishing processes such as polishing of the convex arcuate curved surface 6b of the outer wall 6 and coating on the polished surface are carried out as necessary in the same manner as in the first embodiment. In the grinding process of the first and second embodiments, the center of the outer side wall 6 in the longitudinal direction and the width direction may be a minimum amount where grinding is hardly performed.

The exterior panels according to the first and second embodiments are fixed to the pillars and cuboids of the skeleton of the high-rise building continuously or horizontally by means known in the art, and the exterior panels of the high-rise building are attached. And as the case may be, it is also used for exterior panels of cylindrical tower-shaped buildings. When used as described above, the exterior panel of the first embodiment may have a length in the extrusion direction of 4.5 m, and the exterior panel of the second embodiment may have a width of 1.2 m.

In the first and second embodiments described above,
After molding the flat molded cement panel 1 in which the inner and outer walls 5 and 6 face each other in parallel, the outer surface 6a of the outer wall 6 of the molded cement panel 1 is formed into a convex arc shape by grinding in both the extrusion direction and the width direction. It can be formed on the curved surface 6b. At this time, even if the die of the cement extruder is one type, it is possible to form the convex arcuate curved surface 6b having various curvatures differently, and if the die is a plurality of types, the convex arcuate curved surface having various curvatures can be formed more variously.

In the first embodiment, the extrusion molding 1 has a length of 0.9 m to 4.5 m and a convex arcuate radius of 5 m to 15 m.
Various modifications can be made within the range of 0 m, and it is possible to obtain a product in which a convex arcuate curved surface 6b is formed in series on the outer surface of the outer surface 6 of the molded cement panel 1 having a long length in the extrusion direction. In addition, even if the outer wall of the molded cement panel has the same thickness as the inner wall,
It is good when the amount of grinding when forming a convex arcuate curved surface is small, but by increasing the thickness of the outer wall more than the thickness of the inner wall, even if the grinding amount of both ends of the outer wall is increased, The strength of the wall can be maintained sufficiently.

[0017]

As described above, in the exterior panel of the building according to the invention of claim 1, after the flat extruded cement panel with the inner and outer walls facing in parallel is formed, the outside of the formed cement panel. By grinding the outer surface of the wall, the outer surface of the outer wall can be formed into a convex arc-shaped curved surface in both the extrusion direction of the molded cement panel and the width direction orthogonal to this direction.

Further, various kinds of convex arc-shaped curved surfaces having different curvatures can be formed on the outer surface of the outer wall of the molded cement panel without using many kinds of die as in the conventional molded cement panel described above. Then, it is possible to obtain a product in which a convex arcuate curved surface is formed in series on the outer surface of the outer surface of the molded cement panel having a long length in the extrusion direction. Therefore, since the length of the exterior panel is longer than that of the conventional example, it is sufficient to fix a smaller number of exterior panels to the pillars of the building or the like that form the long convex arcuate surface, and to improve the workability of the building. The exterior panel can be fixed.

The invention of claim 2 is suitable for manufacturing the exterior panel of a building according to claim 1, wherein the outer wall of the molded cement panel is made thicker than the inner wall, so that Even if the amount of grinding on both ends is increased, the strength of the outer wall can be sufficiently maintained. In particular, a convex arc-shaped curved surface is formed by grinding in the extrusion direction of the outer surface of the outer wall on a cement panel with a long extrusion direction length. It is suitable to do.

[Brief description of drawings]

FIG. 1 is a front view showing a molded cement panel for an exterior panel of a building according to a first embodiment of the present invention.

FIG. 2 is a perspective view of an exterior panel of a building obtained by grinding the outer surface of the molded cement panel shown in FIG. 1 into an arc shape in the extrusion direction.

FIG. 3 is a partially enlarged view of an exterior panel of the building shown in FIG.

FIG. 4 is a perspective view of an exterior panel of a building according to a second embodiment in which an outer surface of the molded cement panel shown in FIG. 1 is ground in an arc shape in a width direction.

FIG. 5 is a front view of an exterior panel of a building in which the outer surface of a conventional molded cement panel is formed into an arc shape in the width direction.

[Explanation of symbols]

 1 Molded Cement Panel 2 Hole 3 Convex 4 Concave 5 Inner Side Wall 6 Outer Side Wall 6a Outer Surface 6b Convex Circular Curved Surface

─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. ⁶ Identification code Office reference number FI Technical display area E04B 2/00 E04C 2/46 J

Claims (2)

[Claims] 1. A plurality of holes are arranged side by side in the width direction, and
An exterior panel for a building, characterized in that the outer surface of the outer wall of a flat extruded cement panel with outer walls facing each other in parallel is formed into a convex arc-shaped curved surface by grinding. 2. Cement is extruded from a die of a cement extruder so that a large number of holes are arranged side by side in a width direction and inner and outer walls are opposed to each other in parallel, and an outer wall is made thicker than an inner wall. Molding process to obtain a flat molded cement panel of required length, and after curing the cement panel, one of the extrusion direction and the width direction of the outer surface of the outer wall, the required amount of both ends is the maximum amount and the center is the minimum amount. A method of manufacturing an exterior panel of a building, comprising a grinding step of grinding to a curved surface having a convex arc shape with a curvature.