JP3041571B2 - Manufacturing method of flat tile - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement in a method of manufacturing a flat roof tile. In particular, the present invention relates to an improvement in a manufacturing method in which a flat white roof tile is placed on a shelf of a firing cart with its bottom side facing down, and is erected and fired. In this specification, the term "flat roof tile" refers to a flat roof having a form in which a front surface is substantially flat and a hook portion is provided on the rear side toward the rear side. It includes French tiles and plain tiles. Unless noted below,
The “flat roof tile” is simply referred to as “flat roof tile”.

[0002]

2. Description of the Related Art In the production of clay tile, it is known that a glaze is applied to the surface of a white tile and then fired. At this time, it cannot be avoided that the traces of glaze caused by firing impair the aesthetic appearance of the tile. Therefore, for example, in the case of Japanese-style tiles, firing has been traditionally performed so that glaze dripping marks remain in portions where the aesthetics of the tiles can be ignored.
The bottom side of the tile is a part that can be overlapped by the heads of adjacent tiles when roofing, so it is a part where the aesthetic appearance can be ignored.
For this reason, white tiles coated with glaze are widely fired by standing on the shelves of a firing trolley, with the butt side disposed below.

[0003] In other words, firing is performed such that dripping marks of the glaze remain on the tail side of the roof tile, which can be neglected.
However, it is inherently difficult to erect a flat roof tile due to its form, and a firing jig called a sagger is widely used. 2. Description of the Related Art A baking method has been practiced in which a white tile for a flat tile is stored in a sagger, and the white tile is placed in a horizontal state or an inclined state on a shelf of a firing cart via the sagger.

[0004]

However, the conventional method has a drawback in that a large number of saggers must be prepared because a sagger is required for each tile on a white background. Further, there is a problem that since the white tile is fired together with the sagger, the heat energy consumed in the sagger becomes large, the firing efficiency is deteriorated, and the fuel consumption increases.

[0005] In addition, it was inevitable that the white tiles had to be stored in the sagger prior to the firing step. Also, since glaze adheres to the sagger, it is necessary to perform maintenance and inspection, such as removing the glaze that adheres to each sagger, and it is necessary to prepare many saggers. Had to be expensive to produce.

SUMMARY OF THE INVENTION The present invention has been made to eliminate the above-mentioned disadvantages of the prior art, and an object of the present invention is to make it possible to manufacture a tile by eliminating a sagger that has been required in the past. Another object of the present invention is to eliminate the complexity of the operation and reduce the production cost.

[0007]

The basic structure of the present invention is as follows.
In the method of manufacturing a flat tile having a hook portion on the butt side in a direction perpendicular to the back surface of the tile main body, the hook is attached to the hook portion in a substantially right direction toward the rear surface of the flat tile body. Forming a base in a state where the portion is provided in the direction of the hook portion, obtaining a forming base, forming a cut in a vertical direction at a boundary between the hook portion and the additional portion of the forming base, and drying the forming base to form a white tile. The supporting part consisting of the hook part and the additional part of the white tile is placed on the shelf plate to erect the white tile and fired, and then the additional part is removed at the cut line. This is a method for manufacturing a flat roof tile.

[0008]

FIG. 1 is a front view of a molding base for flat tiles according to an embodiment of the present invention, FIG. 2 is a bottom view of the molding base for flat tiles, and FIG. 3 is an enlarged view of line AA in FIG. FIG. 4 is a side view showing a cross section of a main part showing a state where the tail sides of a large number of flat tiles are arranged on the shelf board of the firing cart and the tail sides of the tiles are placed downward and raised.

An embodiment will be described with reference to FIGS. Although the illustrated flat roof tile will be described as an embodiment of the present invention, the invention is not limited to the manufacture of the illustrated flat roof tile. The present invention is applied to a roof tile having a so-called hook portion 10 in a direction perpendicular to the back side of the bottom side.

First, in order to obtain a molding base 12 for a so-called flat roof tile, rough ground is formed by a conventional method using a press forming machine. In this case, the molding is performed in a state where the additional portion 16 is provided in the same direction as the hooking portion 10 by being continuously provided to the hooking portion 10 in a direction substantially perpendicular to the back surface of the molding base body 14.

Therefore, the overall configuration of the molding base 12 is basically the same as that of the conventional molding base except that the additional portion 16 is connected to the hook portion 10.

In the forming substrate 12 of the present invention, the additional portion 16 is connected to the hook portion 10 so that the width of the hook portion 10 becomes wider by the addition of the additional portion 16, and When placed on the hook 24 with the hook portion 10 side down, consideration has been given so that what was conventionally difficult to erect can be erect.

That is, by providing the additional portion 16 in advance to be, for example, about 20 mm in length so as to be connected to the hook portion 10 at the time of molding, the upstanding support portion 18 to be described later is formed.

Next, the above-described hook portion 1 of the molding base 12
A shallow cut 20 in the direction perpendicular to the boundary between 0 and the additional portion 16 is provided by using a cutter or the like. This break 20
As will be described later, it serves to remove the additional portion 16 at the cut 20 after firing.

Therefore, the forming base material 12 with the cut 20 is provided.
Is placed on a drying cart in a horizontal state as in the conventional method to perform a drying process. Of course, by drying in a horizontal state, the flexible hook portion 10 and the additional portion 16 can be dried without any deformation or damage.
In this way, a white tile 22 for a flat tile can be obtained.

Next, glaze is applied as required, and the white tile 2 having the hook portion 10, the cut 20 and the additional portion 16 is provided.
2 is erected and placed on the shelf board 24 of the firing cart. In this case, the portion that touches the shelf board 24 is the wide support portion 18 in which the hook portion 10 and the additional portion 16 are added. Therefore, the sagger which has been conventionally required is omitted, and the white tile 22 alone can be stably stood on the shelf board 24.
In this way, a large number of white tiles 22 are erected and fired.

Thereafter, the additional portion 16 of the product tile obtained by the firing treatment is removed at the cut 20 as a boundary. The adding portion 16 may be removed by any appropriate method, for example, any method that physically applies a shock with a hammer or the like. Additional part 16 removed by physical impact
Although there is a possibility that the removal marks of the cuts 20 of the slits cannot prevent the appearance from being impaired, as described above, the cuts 2
Since the removal mark of 0 is formed on the hook portion 10, there is no problem because it is concealed by the head of the adjacent tile when used for a roof.

[0018]

Since the present invention is configured as described above, it has the following effects. Since the white tile having the support portion provided with the additional portion and connected to the hook portion can be securely erected on the shelf alone by itself without the intervention of the sagger as in the conventional method, and firing can be performed. Jigs such as saggers can be omitted. Therefore, it is not necessary to prepare jigs such as saggers, as well as to improve fuel efficiency and reduce fuel consumption.In addition, it is not necessary to store white tiles in jigs. In addition, maintenance of jigs such as saggers is not required.

[Brief description of the drawings]

FIG. 1 is a front view of a molding base for flat tile according to an embodiment of the present invention.

FIG. 2 is a bottom view of a molding base for flat tile according to an embodiment of the present invention.

FIG. 3 is an enlarged side view of a main part of FIG. 1;

FIG. 4 is a side view showing a cross section of a main part of the embodiment of the present invention during firing.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Hook part 12 Forming base 14 Forming base body 16 Additional part 18 Bearing part 20 Cut 22 White tile 24 Shelf

Claims (1)

(57) [Claims] 1. A method of manufacturing a flat tile having a hook portion on the bottom side in a direction perpendicular to the back surface of the tile body, wherein the hook portion is provided substantially perpendicular to the back surface of the flat tile body. The forming base is obtained by forming the additional portion in the direction of the hook portion in a continuous manner, and a cut is formed in a vertical direction at the boundary between the hook portion of the forming base and the additional portion, and the forming base is dried. Then, a white tile is obtained, and a support portion including a hook portion and an additional portion of the white tile is placed on a shelf plate to erect the white tile and fired. Then, the additional portion is removed at a break. A method of manufacturing a flat roof tile.