JPH0346288B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a concrete block for use in curbs, retaining walls, and safety zones, in which arbitrary marks or letters are recessed on the surface of the block body.

(Prior Art) Conventionally, some concrete blocks for curbs, retaining walls, and safety zones have the name or mark of a road administrator recessed on the surface, and the mark is colored.

In order to manufacture these concrete blocks, arbitrary marks or letters were formed in a convex shape on the inner surface of the mold for forming the block, and then concrete was poured into the concrete mold and molded.

However, in the case of the above manufacturing method, a special formwork with the desired mark or letter formed on the inside of the formwork is required, so manufacturing the formwork is labor-intensive and the cost of the formwork is high. Become. Furthermore, if there is a change in the mark or text, the above-mentioned formwork must be made over time, so the manufacturing cost per concrete block becomes high, especially if the number of manufactured blocks is small. .

Among the above-mentioned concrete blocks with marks and letters, there are marks formed in a concave shape and the inside of the letters that are colored with colored paint to make them clearer. It is very time-consuming as the colored paint is applied with a brush so that it does not ooze out.

(Technical Problem) The technical problem of the present invention is to provide a method for producing a concrete block with a mark, which does not require a special formwork for inserting the desired mark or character, and in which the inside of the mark or character can be easily colored. The goal is to provide the following.

(Means for solving the technical problem) The means taken by the present invention to solve the above-mentioned technical problem is to cut out an arbitrary mark or character shape at a predetermined location on the inner surface of a mold for block molding. After pasting an adhesive sheet of a predetermined thickness and adhering a powder or particulate coloring material to the remaining adhesive surface of the double-sided adhesive sheet, concrete is poured into the mold, allowed to harden, and then removed from the mold.

(Operation) According to the means of the first invention, any mark or character is formed in a convex shape with a predetermined thickness on the inner surface of the mold.

The concrete poured into this formwork flows along the surface of the mark or letter mentioned above, and when the concrete in the formwork hardens and is removed from the mold, the mark or letter mentioned above appears in a concave shape on the surface of the removed concrete block. It is formed.

According to the above-mentioned means, arbitrary marks or characters are formed with a predetermined thickness on the inner surface of the form using a double-sided adhesive sheet, and a powder or particulate coloring material is applied to the exposed adhesive surface of the double-sided adhesive sheet. is attached.

The concrete poured into this formwork flows along the surface of the marks or letters to which the coloring material is attached, and when the concrete in the formwork hardens and is removed from the mold, the above marks or letters will appear on the surface of the removed concrete block. is formed in a concave shape, and the coloring material is embedded in the concrete block surface and fixed within this mark or character.

(Effects) As described above, the present invention is constructed by attaching an adhesive tape cut out in the same shape as the convex mark or letter to be formed on the inner surface of the formwork to the inner surface of the formwork. Alternatively, the design of characters and the location where they are formed can be changed freely in a short time. Further, the formwork used for forming ordinary concrete blocks without any convex marks or letters can be used as is.

Therefore, manufacturing costs can be reduced by eliminating the need for expensive dedicated molds with molding parts for specific marks and characters, and whether the number of manufactured concrete blocks is small or large, concrete blocks with marks and characters can be manufactured at low cost. It can be manufactured efficiently at low cost.

The coloring material used to color the marks and letters is applied to the remaining adhesive surface of the double-sided sheet pasted to the inner surface of the formwork before concrete is poured, so the process of coloring the marks and letters is carried out at the same time as the concrete block is formed. can be completed. In addition, the coloring material inside the marks and letters is beautifully colored without spilling out, and since it is embedded and fixed in the concrete surface, it will not peel off.

(Example) Hereinafter, an example of the first invention will be described based on the drawings.

The present invention will be explained based on FIGS. 1 to 6.

A' shown in Fig. 1 shows the completed curb block, and a mark 1' indicating the road administrator etc. is recessed in one corner of the front of the block body A', and the inside of this mark 1' is colored in a predetermined color. It is colored.

On the other hand, B in FIG. 2 is a mold for molding the above-mentioned block body a', and the mold for molding an ordinary curb stone block is used as it is. A double-sided adhesive sheet 2' for forming the mark 1' in a concave shape on the surface of the curb block A' is attached to the area where the mark 1' is formed on the inner surface of the mold B.

As shown in Figure 3, the double-sided adhesive sheet 2' is the same thickness as the depth of the mark 1' on the curb block A', or several sheets of thin sheets are pasted together until the desired thickness is reached. is cut out to have the same outline as the target mark 1', and release paper 2'c is attached to the adhesive surfaces 2'a and 2'b on both the front and back sides.

If the mark 1' is symmetrical, the double-sided adhesive sheet 2' is attached after peeling off the release paper on either side. In addition, if the mark 1' is not symmetrical, in order to form the mark 1' in the normal form when viewed from the front on the block body a', the mark 1' is drawn out from the double-sided adhesive sheet 2' into the shape of the mark 1'. It is necessary to peel off the release paper 2'c on the front side and adhere it to the inner surface of the mold B so that a convex mark is formed on the inner surface of the mold B in an upside-down manner.

Next, the release paper on the remaining adhesive surface of the double-sided adhesive sheet 2' attached to the inner surface of the formwork B is peeled off, and the powder or particulate coloring material 3 is adhered to this adhesive surface.

The coloring material 3 is used to color the inside of the mark 1' of the curb block A' in a desired color, and for example, color cement, titanium, or the like is used.

Thereafter, cocrete is poured into the formwork B, and the concrete is forcibly cured in a steam curing chamber (FIG. 4).

Once the concrete in the formwork B has hardened and the block body a has been formed, the block body a' is removed from the formwork B as shown in FIG.

A mark 1' formed by a double-sided adhesive sheet 2' is recessed on the front surface of the demolded block main body a', and the inside of the mark 1' is colored in a desired color with a coloring material 3. There is.

As shown in FIG. 5, the coloring material 3 is embedded and fixed on the surface of the block body a', so it will not peel off over a long period of time, and the coloring material adhered to the double-sided adhesive sheet 2' Since the coloring material 3 is fixed in the mark 1' as it is, the coloring material 3 does not protrude outside the mark 1' and can be colored neatly.

In addition to the mark 1', characters such as numbers and alphanumeric characters can also be placed in the block body a'. For example, as shown in Fig. 3, if the double-sided adhesive sheet 2' is cut out in the shape of numbers or alphanumeric characters and pasted upside down on the inner surface of the mold B, the desired characters can be printed on the surface of the block body a'. It can also be recessed.

As described above, according to the present invention, any mark or character can be easily formed on the surface of the block body, and the inside of the mark or character can be colored in any color at the same time as the block body is formed. be.

[Brief explanation of drawings]

Fig. 1 is a perspective view showing a curbstone block manufactured by the manufacturing method of the present invention, Fig. 2 is a longitudinal cross-sectional view of the formwork, and Fig. 3 is a perspective view showing a double-sided adhesive sheet cut into the shape of marks or letters. Figure 4 is a cross-sectional view showing concrete poured into the formwork, Figure 5 is a longitudinal cross-sectional view showing the formwork with the curb block removed, and Figure 6 is the mark of the curb block. It is an enlarged sectional view showing a part. In the figure, A': curb block, a': block body, 1: mark or letter, 2': double-sided adhesive sheet, 3: coloring material.

Claims (1)

[Claims] 1. Attach an adhesive sheet of a prescribed thickness cut into the shape of an arbitrary mark or letter to a prescribed location on the inner surface of a mold for block molding, and attach powder or particulate coloring material to the remaining adhesive surface of the double-sided adhesive sheet. After this, concrete is poured into the formwork, cured, and then removed from the mold.