JP2577299B2 - Method of manufacturing concrete block - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a concrete block which can have a different appearance one by one when mass-produced and has the same appearance as a natural material such as natural stone. .

[0002]

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

The present invention provides a method for producing a natural stone shaped concrete block which allows each block to have a very 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 a natural stone 1 is attached to the outer surface of the natural material,
The transfer member 2 is peeled off from the natural material to form a bag 3 having surroundability. The bag 3 is suspended by a suitable means 4 and a suitable block 11 is arranged around the bag 3. In this state, the bag 3 is filled with the concrete 5 and the hanging amount of the bag 3 is adjusted to change the contact amount between the bag 3 and the block 11.
The present invention relates to the production of a concrete block 6 having the same appearance as a natural material such as natural stone 1 by removing the appropriate means 4, the bag 3 and the block 11.

[0006]

A bag 3 having an inner surface to which irregularities on the outer surface of a natural material such as natural stone 1 are transferred and formed is suspended by appropriate means 4 and an appropriate block 11 is arranged around the bag 3. In this state, the bag 3 is filled with concrete 5 and the amount of contact between the bag 3 and the block 11 is varied by adjusting the amount of suspension of the bag 3, and the concrete 5 is hardened. Thereafter, when the appropriate means 4, the bag 3 and the block 11 are removed, a concrete block 6 having the same appearance as a natural material such as the natural stone 1 and a desired shape can be easily formed.

[0007]

1, 2, 3, 4, 5 and 6 illustrate an embodiment of the present invention, which will be described below.

[0008] A desired natural stone 1 is prepared, and a transfer member 2 is attached to the natural stone 1.

The transfer member 2 is preferably a resin which is fluid at room temperature and is cured by adding a curing agent. However, in order to enable peeling from the natural stone 1, the resin needs to be a resin having a surrounding property even after curing.

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

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 simultaneously by a spray gun (see FIG. 1).

Subsequently, when the transfer member 2 sprayed and applied to the natural stone 1 is hardened, the transfer member 2 is peeled off from the natural stone 1 to form a bag 3.

Reference numeral 13 denotes a notch for smoothly separating the bag 3 from the natural stone 1, and is formed by cutting the bag 3 with a cutter or the like after the bag 3 is cured.
When filling concrete 5, one cut 13
Is covered with an appropriate means such as a resin member 9 or the like, and the other cuts 13 are bonded with an adhesive or the like.

Subsequently, the bag 3 is hung by a chain 8 (any kind of wire or the like) (see FIG. 2).

Reference numeral 7 denotes a support plate which is annularly formed on the upper edge of the bag body 3 and is fastened with a bolt and nut 10.
The chain 8 is connected to a hook 12 provided at an appropriate position.

Subsequently, concrete 5 is filled in the bag 3 suspended by the chain 8 (see FIG. 3).

Since the bag 3 is flexible, the amount of suspension of the bag 3 by the chain 8 is appropriately adjusted (the chain 8
Therefore, the amount of suspension can be easily adjusted. In particular, if a pulley is provided above the chain 8, the suspension amount can be adjusted more easily. ), The shape of the concrete block 6 can be arbitrarily designed (for example, a vertically long shape or a horizontally flat shape). At this time, by laying an appropriate block 11 below the bag 3, the bag 3 is appropriately deformed, and it is possible to make the concrete block 6 show any irregularities. Also, by pressing the bag 3 appropriately with a hand or the like, it is possible to make the concrete block 6 as a product show any irregularities.

After the concrete 5 is hardened, the chain 8 and the block 11 are removed, and the bag 3 is peeled off (peeling off using the cut 13). 6 is formed
(See FIG. 4). The top surface of the concrete block 6 to be formed in FIG. 3 is desirably a flat surface in consideration of the stability when the concrete block 6 is laid.

Therefore, in this embodiment, even if the concrete blocks 6 are mass-produced, it is possible to form the concrete blocks 6 all having different shapes.

Reference numeral 14 denotes a hook buried in the concrete block 6 for facilitating the removal of the concrete block 6 and suspending the concrete block 6 when the concrete block 6 is constructed on site.
A notch for inserting the hook 14 is formed in the bag body 3 (the notch is appropriately closed when the concrete 5 is filled). The hooks 14 are also used to connect adjacent concrete blocks 6 when the concrete blocks 6 are laid appropriately in a juxtaposed state (see FIG. 6). Reference numeral 15 denotes a connection fitting.

[0021]

Since the present invention is constructed as described above, a concrete block having the appearance of a natural material such as natural stone and capable of giving each one a different appearance even in mass production is extremely efficient. It becomes a method that can be manufactured well.

[Brief description of the drawings]

FIG. 1 is a process explanatory view of this embodiment.

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

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

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

FIG. 5 is a plan view of the bag according to the present embodiment.

FIG. 6 is a plan view showing a use state of a concrete block manufactured according to the present embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Natural stone 2 Transfer member 3 Bag 4 Appropriate means 5 Concrete 6 Concrete block 11 block

Claims (1)

(57) [Claims] 1. A transfer member 2 capable of transferring irregularities on the outer surface of a natural material such as a natural stone 1 is attached to the outer surface of the natural material, and the transfer member 2 is peeled off from the natural material to improve the surrounding property. A bag 3 is formed, and the bag 3 is suspended by a suitable means 4 and a suitable block 11 is disposed around the bag 3. In this state, the bag 3 is filled with concrete 5. At the same time, the amount of suspension of the bag 3 is adjusted to vary the amount of contact between the bag 3 and the block 11, and after the concrete 5 is hardened, the appropriate means 4, the bag 3 and the block 11 are removed. A method for producing a concrete block, characterized by producing a concrete block 6 having the same appearance as a natural material such as a natural stone 1.