JPS63218303A - Manufacture of reflection block - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a reflective block used for curb blocks, retaining walls, safety zones, etc.

(Prior Art) Conventional reflective blocks include Utility Model Application No. 60-144749 and Utility Model Application No. 60-144750.

Both of the above-mentioned ideas were developed to solve the problem of conventional reflective blocks, in which a reflective film or plate is pasted on the surface of the block body, which is vulnerable to contact with cars, resulting in the reflector being damaged or peeling off. It was devised in 2013, and is made by mixing glass particles into the concrete that forms the surface layer of the block body, so that even if a vehicle comes into strong contact with the reflective block, the reflective function of the block will not be impaired. .

However, since the reflective surface of the reflective block of the above invention is formed of a concrete layer mixed with glass particles, it is necessary to use a relatively large number of glass particles in order to expose a large number of glass particles on the reflective surface. In addition, the glass particles appearing on the reflective surface may become uneven.

(Technical Problem) The technical problem of the first and second inventions is to form a reflective surface that is resistant to contact with cars, and to expose a large number of glass particles to the reflective surface in an even manner. An object of the present invention is to provide a method for manufacturing a reflective block.

(Means for solving the technical problem) The means taken by the first invention to solve the technical problem is to attach a double-sided adhesive sheet cut into a predetermined shape to the inner surface of the mold for 70 ivy molding. After glass particles are attached to the remaining adhesive surface of the double-sided adhesive sheet, concrete is poured into the mold, hardened, and removed from the mold.

The means taken by the second invention to solve the above-mentioned technical problem is to apply an adhesive to the inner surface of a mold for block molding, and to attach a model in which glass particles are attached to the surface coated with the adhesive. Concrete is poured, hardened, and removed from the mold.

(Function) According to the means of the first invention, a double-sided adhesive sheet cut into a predetermined shape is affixed to a location corresponding to the reflective surface on the inner surface of the mold, and the remaining adhesive sheet exposed on the inner surface of the mold is pasted. When glass particles are attached to the adhesive surface, the glass particles are evenly attached to the entire surface of the adhesive surface.

When concrete is poured into the formwork and hardened,
The glass particles attached to the adhesive sheet are embedded and fixed to the surface of the block body formed within the mold.

Thereafter, when the block body is demolded and the adhesive sheet is peeled off, a reflective surface in which many glass particles are evenly embedded is formed on the surface of the block body in the same shape as the adhesive sheet.

According to the means of the second invention, when an adhesive is applied to a location corresponding to the reflective surface on the inner surface of the mold, and glass particles are attached to the adhesive-applied surface, the glass particles are spread over the entire adhesive-applied surface. Attach evenly to the surface.

When concrete is poured into the formwork and hardened,
The glass particles adhering to the adhesive-applied surface are embedded and fixed to the surface of the block body formed within the mold.

After that, when the block body is demolded, the glass particles are peeled off from the adhesive coated surface, and a reflective surface with many glass particles evenly embedded in the block body surface is formed in the same shape as the adhesive coated surface. Ru.

(Effects) Since the first invention is as described above, it produces the effects listed below.

■Since the glass particles that make up the reflective surface are embedded and fixed on the surface of the block body, the reflective surface becomes strong against impact and contact, and the reflective function of the reflective surface will be impaired by contact with a vehicle. There is no.

(2) Glass particles can be exposed at high density and evenly on the reflective surface of the block body.

Further, the glass particles required to form the reflective surface can be made in a small layer by simply adhering them to the adhesive sheet, and the manufacturing cost can be reduced.

(2) Since the reflective surface is formed to have the same shape as the 1Jtli shape of the adhesive sheet, the outer shape of the reflective surface can be formed into an arbitrary shape according to the cutting shape of the adhesive sheet.

Since the second invention is as described above, it produces the effects listed below.

■Since the glass particles that make up the reflective surface are embedded and fixed on the surface of the block body, the reflective surface becomes strong against impact and contact, and the reflective function of the reflective surface will be impaired by contact with a vehicle. There is no.

(2) Glass particles can be exposed at high density and evenly on the reflective surface of the block body.

Furthermore, the amount of glass particles necessary to form the reflective surface can be reduced by simply adhering them to the surface coated with the adhesive, thereby reducing manufacturing costs.

■The adhesion surface of the glass particles on the inner surface of the mold is created by applying adhesive to the inner surface of the mold, so when you want to form a reflective surface on the entire block, or when the block surface shape is spherical. Also, the work of adhering glass particles can be carried out efficiently.

(Embodiment) An embodiment of the first invention will be described below with reference to FIGS. 1 to 7.

(A) shown in FIG. 1 shows a completed curbstone reflective block, in which the front surface of the block body (a) is slightly inclined, and numerous glass particles (2) are placed on the front surface of the second mirror.
As shown in the figure, it constitutes an exposed strip-shaped reflective surface (1).

On the other hand, (B) shown in Fig. 3 is the above-mentioned reflective block (
This is a formwork for molding A), and is provided with a recess (b) having the same shape as the block body (a).

A double-sided adhesive sheet (3) cut into a strip having the same dimensions as the reflective surface (1) is pasted on the inner surface of the formwork (B) corresponding to the front surface of the block body (a), and the adhesive sheet <3
) Sprinkle the glass particles (2) on the remaining adhesive surface (3a) to make them adhere (Figures 3 and 4). In addition, the above-mentioned double-sided adhesive sheet (3) having an adhesive strength of 600 g to isoog is suitable.

Further, glass particles (2) having a true spherical shape with a diameter of about 0.59 m to 2.5 m are preferable because they have a strong concentrated reflection effect, but glass particles of other shapes may also be used.

In the above state, the adhesive side (3) of the double-sided adhesive sheet (3)
In a), the glass particles (2) are uniformly adhered to the entire surface (FIGS. 2 and 4).

Incidentally, the step of attaching the glass particles (2) to the adhesive surface (3a) of the double-sided adhesive sheet (3) may be performed before the double-sided adhesive sheet (3) is attached to the inner surface of the formwork (B). It is something.

Next, after pouring concrete into the formwork (B),
The concrete is forcedly cured for 2 to 3 hours in a steam curing room with an indoor atmosphere of 60°C to 65°C (Fig. 5).

The concrete in the formwork (B) hardens and forms the block body (
When a) is formed, the glass particles (2) adhering to the adhesive surface (3a) are embedded and fixed to the surface of the block body (a) (FIG. 2).

After that, as shown in Figure 6, when the block body (a) is demolded from the formwork (B) and the double-sided adhesive sheet (3) is peeled off from the block body (a), the front surface of the block body (a) has both sides. A reflective surface (1) having the same shape as the adhesive sheet (3) is formed.

After demolding, the reflective surface (1) is polished if necessary to clearly expose the glass particles (2).

The reflective surface (1) formed as described above has an adhesive surface (3a
), the glass particles (2) that were uniformly attached to the entire surface remain fixed as they are, so the glass particles (2) exposed on the surface have a high density and are distributed evenly.

Therefore, a high reflective effect can be obtained over the entire surface of the reflective surface (1).

Incidentally, as the concrete forming the block body (a), ordinary structural concrete may be used, or concrete dyed white or yellow may optionally be used.

(A') shown in Figure 7 is a reflective block in which circular reflective surfaces (1') (1') are formed on the front surface of the block body (a), and a circular reflective surface (1') is formed on the inner surface of the formwork (B). A double-sided adhesive tape was attached to the reflective block, and the following was manufactured in the same manner as the reflective block (A) described above.

According to the first invention, the external shape of the reflective surface can be freely selected according to the cutting shape of the double-sided adhesive tape, and reflective surfaces other than strip-shaped or circular can also be easily formed.

Next, an embodiment of the second invention will be described based on FIGS. 8 to 13.

(A") shown in FIG. 8 shows a completed curbstone reflective block, which forms a block body (a") that is completely the same shape as the reflective block (A) described above, and the bottom surface of the block body (a"). The entire surface excluding the surface is a reflective surface (11), and this reflective surface (11) is the block body (a'')
It is constructed by exposing countless glass particles (2) on the surface of the glass (Fig. 9).

The formwork (B) shown in FIG. 10 is the same as that described above, and an appropriate adhesive (13) with an appropriate adhesive strength is applied evenly to the entire inner surface of the formwork (8). 13) If the coating surface has a suitable viscosity, the glass particles (
Glass particles (2) similar to those in 2) are coated on the inner surface of the mold (B) and adhered thereto (Fig. 11).

In the above state, the glass particles (12) are completely and evenly adhered to the surface coated with the adhesive (13) (FIG. 9).

Next, as shown in Fig. 12, after pouring concrete into the formwork (B), the concrete is poured into a room where the atmosphere in the room is 6.
Force curing for 2 to 3 hours in a steam curing room at 0°C to 65°C (Figure 12).

The concrete in the formwork (B) hardens and forms the block body (
When a) is formed, the glass particles (2) attached to the adhesive (13) illll cloth are embedded and fixed to the surface of the block body (a).

When the block body (a'') was demolded from the mold (B) as shown in FIG. 13, countless glass particles (2) were exposed on the surface of the block body (a'') except for the bottom surface. A reflective surface (11) is formed. After demolding, the reflective surface (11) is polished if necessary to clearly expose the glass particles (2).

The adhesive (13) described above is used so that when the block body (a'') is removed from the formwork (B), the glass particles (12) that have been adhered to it can be easily and cleanly peeled off from the inner surface of the formwork (B). This method uses materials that have the property of being

As described above, in the second invention, the adhering surface of the glass particles (2) on the inner surface of the mold (B) is coated with an adhesive (
13), the reflective surface (11) is coated with the block body (a”) as in the above embodiment.
), or when the surface of the block body is spherical (not shown), glass particles (2
) can be carried out efficiently.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing a reflective block molded based on the manufacturing method of the first invention, Fig. 2 is an enlarged longitudinal view showing the reflective surface of the block, and Fig. 3 is a double-sided adhesive sheet on the inside of the mold. Fig. 4 is a longitudinal cross-sectional view of the formwork showing the state in which glass particles are adhered to the double-sided adhesive sheet, and Fig. 5 is a longitudinal cross-sectional view of the formwork showing the state in which concrete is poured. 6 is a vertical sectional view showing the reflective block removed from the mold, FIG. 7 is a perspective view showing the reflective block with a circular reflective surface formed thereon, and FIG. 8 is a manufacturing method according to the second invention. FIG. 9 is a vertical cross-sectional view of the formed reflective block, FIG. 10 is a vertical cross-sectional view of the formwork with adhesive applied to the inner surface, and FIG. 11 is a vertical cross-sectional view of the molded reflective block. Figure 12 is a vertical sectional view showing the formwork with glass particles attached, Figure 12 is a vertical cross-sectional view showing the formwork with concrete poured in, and Figure 13 is a vertical cross-sectional view showing the reflective block removed from the formwork. be. In the figure, A, A', A'': Reflective block B: Formwork a, a'' Ni block main body 1.1': Reflective surface 2 Ni glass particles 3: Double-sided adhesive sheet 3a: Adhesive surface 11: Reflective surface 13:
Adhesive surface patent applicant Yama 1)
Engraving of the Jokuchi drawing of the Susumu drawing・1. Case Description Patent Application No. 5380 May 2, 1988, Title of Invention: Method for Manufacturing Reflective Blocks Amended as attached.

Claims (1)

[Claims] 1. A double-sided adhesive sheet cut into a predetermined shape is pasted on the inner surface of a mold for block molding, glass particles are attached to the remaining adhesive surface of the double-sided adhesive sheet, and then inside the mold A manufacturing method for reflective blocks in which concrete is poured into the concrete, hardened, and demolded. 2. A method for producing a reflective block, in which an adhesive is applied to the inner surface of a mold for forming the block, glass particles are attached to the adhesive-coated surface, concrete is poured into the mold, hardened, and demolded.