JPH02171209A - Manufacture of concrete panel - Google Patents

Abstract

PURPOSE:To manufacture a safety panel inexpensively, by a method wherein a large number of boxlike sheets are arranged on an inner bottom part of a concrete shuttering in a patternlike state by turning the boxlike sheets bottom down, concrete is placed by interposing a joint molding material between the boxlike sheets adjoining to each other, demolded upon curing of the concrete and the joint molding material is removed. CONSTITUTION:An external form of a boxlike sheet 1 formed of a metal or synthetic resin is constituted into an appropriate form such as a square or a triangle or la pentagon and a projected line 2, which is bent outside or inside, is formed at about a right angle to the outer circumference of its open fringe. Then a large number of boxlike sheets 1 are arranged on an inner bottom part of a concrete shuttering 3, which is in a flat box form, in a patternlike state by turning the boxlike sheets 1 bottom down. Then a joint forming material 4 of rubber or synthetic resin is interposed between the boxlike sheets 1, 1 adjoining to each other and concrete 5 is placed within the concrete shuttering 3 for cure. Then demolded, the joint molding material 4 is removed and a concrete panel where the large number of the boxlike sheets are buried into the surface in a patternlike state is manufactured. With this construction, the concrete panel, which is safe even if the same is used for a facing sheet of a high building, can be manufactured inexpensively.

Description

DETAILED DESCRIPTION OF THE INVENTION "Field of Industrial Application" The present invention involves forming a large number of suitably shaped box-like plates arranged on the surface of a concrete panel of a certain size. This article relates to the manufacturing method of concrete panels.

``Conventional technology'' Conventional technology of this type includes, for example, a concrete panel of a certain size, with a large number of tiles or natural stones placed in a pattern and some of them buried within the concrete panel. are doing.

``Problem that the invention aims to solve'' The above problem is that tiles and natural stones are attached to concrete panels, and are easily peeled off when external force is applied to the tiles or natural stones or due to vibrations. Therefore, if concrete panels with tiles or natural stone on the outside are used for walls, they may fall and cause unexpected injuries, which is extremely dangerous. is difficult for friends.

[Means for Solving the Problems] The present invention has been proposed to solve the above-mentioned disadvantages, and has a structure in which the open edge of a box-shaped plate made of metal or synthetic resin is turned outward or inward. A large number of bent ridges are arranged in a desired pattern with the bottom touching the inner bottom of the formwork, and a bendable joint forming material is interposed between adjacent box-shaped plates. This method is characterized in that it is manufactured by pouring concrete, removing the mold after hardening, and removing the joint molding material. Such a concrete panel has a protrusion bent inward or outward on the open edge of the box-shaped plate, which bites into the inside of the concrete, so it falls off from the concrete when external forces and vibrations are applied. It also does not peel off even over a long period of time. Therefore, it is safe to use it on the exterior walls of high-rise buildings.

Next, the invention will be explained in detail with reference to the drawings.

(1) is a box-shaped plate made of metal or synthetic resin, etc., and the outer shape is configured into an appropriate shape such as a square, triangle, or pentagon. , a protrusion (2) is formed that is bent outward or inward. (3) is a formwork, which has a flat box shape. At the inner bottom of the formwork (3), there are a number of box-shaped plates (
1) are arranged in an appropriate pattern with the bottom facing downward. Next, interpose a joint forming material (4) made of rubber or synthetic resin between the adjacent box-shaped plates (1) (11). Next, formwork (3)
) Concrete (5) is placed inside the concrete and hardened. The concrete panel is then demolded, the joint forming material (4) is removed, and a concrete panel with a large number of box-shaped plates buried in a pattern on the surface is manufactured. Reference numeral (6) is a U-shaped connecting plate that holds the rising portion of the adjacent box-shaped plate (11).

"Function" As described above, the present invention comprises disposing a large number of box-shaped plates (1) in a desired pattern on the inner bottom of the formwork (3) with the bottoms facing downward, and adjacent box-shaped plates (11 (between 11 and 11 is joint molding material)
4), and if necessary, insert the connecting plate (6) from the outside of the rising part of the box-shaped plate (1) (ll), clamp the rising part, and pour concrete (5), It is manufactured by waiting for the concrete to harden, demolding it, and removing the joint forming material (4).

"Effects of the Invention" The present invention is manufactured as described above, and its manufacturing can be easily done without requiring special technology, and it is easy to manufacture and can be easily done by anyone. In addition, the box-shaped board (1) has a protrusion (2) formed on the outside or inside of the open edge, which is buried inside the concrete (5) and serves as an anchor. thing\
Therefore, even if an external force is applied to the box-shaped plate fil or vibration is transmitted, it will never come off, and it is safe to use the concrete panel formed according to the present invention as an exterior plate of a high-rise building. . Moreover, the present invention has advantages such as being able to be made at low cost.

In addition, by inserting the connecting plate (6) between the box-shaped plates (11), it is possible to manufacture an orderly product without gaps between the box-shaped plates (11).

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and the first embodiment is shown in the drawings.
The figure is a perspective view of a box-shaped plate used in the present invention with the protrusions on the outside, FIG. 2 is a vertical side view thereof, and FIG. 3 is a perspective view of the box-like plate with the protrusions on the inside. Figure 4 is a longitudinal side view of the
Fig. 5 is a longitudinal cross-sectional view of box-shaped plates arranged in a formwork, Fig. 6 is a partially enlarged perspective view thereof, Fig. 7 is a longitudinal cross-sectional view of concrete poured into the formwork, and Fig. 8 is a view of the present invention. FIG. 1 is a partially vertical perspective view of a product configured by (1)...Box-shaped plate, (2)...Protrusion, (
3)...Formwork, (4)...Joint forming material, (51...Concrete.

Claims (1)

[Claims] The open edge of a box-shaped plate (1) made of metal or synthetic resin is bent outward or inward to form a ridge (2), and the bottom is shaped into the desired pattern on the inner bottom of the formwork (3). A bendable joint forming material (
4), then pour concrete (5),
A method for manufacturing a concrete panel characterized by demolding after hardening and removing the joint forming material (4).