JPH06226725A - Manufacture of concrete block - Google Patents

Abstract

PURPOSE:To provide a method capable of manufacturing a concrete block having an appearance of natural stone. CONSTITUTION:A transfer material 2 is applied on an outer surface of natural raw material, which can transfer the outer surface unevenness of a natural raw material such as natural stone 1, and the transfer material 2 is separated from the natural raw material so as to form a flexible bag body 3 and dwell the outside of the bag body 3 with an appropriate material 4, then in keeping this state, concrete 5 is filled in the bag body 3, and after curing the concrete 5, the appropriate material 4 and bag body 3 are removed, with the result that a concrete block is manufactured, having an appearance similar to natural raw material such as natural stone 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of manufacturing a concrete block which can have different appearances in mass production and has the same appearance as a natural material such as natural stone. is there.

[0002]

2. Description of the Related Art Conventionally, as a method for producing a concrete block having the same appearance as natural stone, various methods such as a method for producing the block using a mold made of FRP are available. Although proposed, it is still insufficient in workability and the method using the mold of the FRP has hardness, so that the blocks manufactured from the mold all have the same shape. That is, if the blocks are mass-produced with the mold, all the manufactured blocks have the same shape.

SUMMARY OF THE INVENTION It is a technical object of the present invention to provide a method of manufacturing a concrete block in the form of natural stone, which makes each block have a different appearance in a very efficient manner.

[0004]

The gist of the present invention will be described with reference to the accompanying drawings.

A transfer member 2 capable of transferring irregularities on the outer surface of a natural material such as natural stone 1 is attached to the outer surface of the natural material,
The transfer member 2 is peeled off from a natural material to form a bag body 3 having a betability, and the outside of the bag body 3 is shaped by an appropriate member 4, and in this state, the concrete body 5 is covered with the concrete 5. Filling,
A method for manufacturing a concrete block, characterized in that a concrete block 6 having an appearance similar to a natural material such as a natural stone 1 is manufactured by removing the appropriate member 4 and the bag body 3 after hardening the concrete 5. It is a thing.

[0006]

[Function] The bag body 3 having an inner surface on which the irregularities of the outer surface of the natural material such as the natural stone 1 are transferred and formed is held by an appropriate member 4 and the bag body 3 is filled with concrete 5, and the concrete 5 After hardening, the appropriate member 4 and the bag body 3 are removed to form a concrete block 6 having an appearance similar to a natural material such as the natural stone 1.

[0007]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS. 1, 2, 3 and 4 show an embodiment of the present invention, which will be described below.

A desired natural stone 1 is prepared, and a transfer member 2 is attached to the natural stone 1.

The transfer member 2 is fluid at room temperature, and is preferably a resin which is hardened by adding a hardening agent. However, since the resin can be peeled off from the natural stone 1, it is necessary that the resin is a resin having a betability even after curing.

Specifically, a polyurethane-based elastic body is mixed with a curing agent (a diisocyanate double body).

In the case of this embodiment, the polyurethane-based elastic body (resin) and the curing agent are separately sprayed and applied to the natural stone 1 by a spray gun (see FIG. 1).

Subsequently, when the transfer member 2 spray-coated on the natural stone 1 is cured, it is peeled off from the natural stone 1 to form the bag body 3.

Reference numeral 13 is a notch for smooth separation from the natural stone 1, as will be described later, and is formed by cutting with a cutter or the like after the bag body 3 is formed. In addition, when filling the concrete 5, the cut
Block 13 with appropriate means such as tape.

Subsequently, the bag body 3 is housed in a frame member having a predetermined size (see FIG. 2). This frame member is composed of an upper frame 7 and a bottom frame 8 on which a side frame 9 is pivotally mounted, and the upper edge of the side frame 9 is fitted in a groove between two hanging pieces 10 provided on the lower surface of the upper frame 7. By fitting, the frame member is fixed in a square shape. Therefore, when the upper frame 7 is removed, the side frame 9 is slid.

When the bag body 3 is housed in the frame member, since the bag body 3 is bendable, an appropriate block 11 is provided on the inside of the frame member so that the concrete block 6 to be the product has any irregularities. It is possible to show them (see Fig. 3). And
Since the bag body 3 has a brewing property, it is possible to make the concrete block 6 as a product have an arbitrary unevenness by appropriately pressing it with a hand or the like. Therefore, in this embodiment, even if the concrete blocks 6 are mass-produced, the concrete blocks 6 having different shapes can be obtained.

A weight 12 (a wire rope in the case of the drawing) is provided at the opening edge of the bag body 3 for preventing the bag body 3 from falling into the frame member when the concrete 5 is filled.

The appropriate member 4 for retaining the shape of the bag body 3 of the claim is a concept including a frame member and an appropriate block 11.

Subsequently, concrete 5 is filled into the bag body 3 set on the frame member.

After the concrete 5 is hardened, when the bag 3 and the upper frame 7 are pulled up, the side frame 9 is slid, and when the bag 3 is peeled off, a concrete block 6 having the same appearance as the natural stone 1 is formed by transfer is formed. (See FIG. 4).

The bag 3 can be reused.

[0021]

Since the present invention is constructed as described above, the concrete blocks which have the appearance of natural materials such as natural stones and which can exhibit different appearances even after mass production are extremely efficient. This is a method that can be manufactured well.

[Brief description of drawings]

FIG. 1 is a process explanatory diagram of the present embodiment.

FIG. 2 is a process explanatory diagram of the present embodiment.

FIG. 3 is a process explanatory diagram of the present embodiment.

FIG. 4 is a perspective view of a concrete block manufactured according to this embodiment.

[Explanation of symbols]

 1 Natural stone 2 Transfer member 3 Bag 4 Appropriate member 5 Concrete 6 Concrete block

Claims (1)

[Claims] 1. A bag body having a pliability property, which is provided with a transfer member capable of transferring irregularities on an outer surface of a natural material such as natural stone, and attached to the outer surface of the natural material and peeling the transfer member from the natural material. To form the outside of the bag body with an appropriate member, and in this state, the bag body is filled with concrete, and after the concrete is hardened, the appropriate member and the bag body are removed to remove natural stone or the like. A method of manufacturing a concrete block, which comprises manufacturing a concrete block having an appearance similar to that of a natural material.