JP2588323B2 - Slate roofing material manufacturing method - 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 manufacturing a slate roofing material in which a pair of left and right slits is provided at the tip.

[0002]

2. Description of the Related Art Slate roofing materials such as asbestos cement tiles have a relatively small thickness and lack a three-dimensional appearance of the roof surface when the roof is laid. For this purpose, slits B and B are provided on the left and right ends of the roofing material A as shown in FIG. In addition, the rainwater flow efficiency is improved and the slope C is used to make the roofing material thicker. In this case, a conventional slate roofing material A is manufactured by pressing a band-shaped molded product obtained by extruding an inorganic kneaded material after natural drying to produce a predetermined flat roofing material, and then slitting it with a die. B and B were carved and angled at the same time.

[0003]

However, in the conventional manufacturing method described above, since the shape of the mold is constant, the tip of the roof material and the slope angle of the slit B are constant regardless of which roof material is used. The light reflection angle of the obtained roof surface is constant no matter what part, and therefore, the roof surface expression is not rich in any building, and there is a drawback that is not suited to the present day when individualization is required.

[0004]

SUMMARY OF THE INVENTION In view of the above problems, an object of the present invention is to provide a method for manufacturing a slate roofing material capable of obtaining various roof surface expressions according to a building. .

[0005]

That is, according to the method of manufacturing a slate roofing material of the present invention, an extruded product of an inorganic kneaded product is pressed to produce a predetermined flat roofing material original sheet.
While the original plate is fixed on the substrate, the tip of the original plate is cut off by a cutting blade to align the tip into a predetermined angled shape. By changing the distance between the cutting blade and the base according to the roofing material original plate, the angles of the leading end of the original plate or the slits are made irregular.

[0006]

Next, an embodiment of the present invention will be described. 1 and 2 are explanatory diagrams of processing of a roof material tip portion of the present invention, FIGS. 3 and 4 are processing explanatory diagrams of a slit portion of the present invention,
FIG. 5 is a perspective view of the roofing material obtained by the present invention, and FIGS. 5 and 6 are side views showing examples of changes in the tip angle of the roofing material.

[0007] The method for producing a slate roofing material of the present invention comprises:
For example, this is a method for producing a flat roof material such as an asbestos cement tile, in which an extruded product of an inorganic kneaded material is naturally dried and then pressed to produce a predetermined flat roof material 1A. 2B, while being fixed by the holding plate 3 on the 2B, the leading end 5 of the original sheet is cut off by the first cutting blade 4A so that the tip 7 of the roofing material is aligned in a predetermined angled shape, and from the leading end of the original sheet to the rear end of the original sheet. When punching the opposite slits 6 and 6 by the second cutting blade 4B,
The cutting blades 4A and 4B are configured to change the distances L1 and L2 from the substrates 2A and 2B in accordance with the roofing original plate 1A so that the angles of the original plate front end 5 or the slits 6 and 6 become uneven. ing.

[0008]

According to the above method, each of the cutting blades 4A,
By changing the positions of the cutting blades 4A and 4B, the angles given to the roof material tip 7 and the slit 6 by 4B can be changed as shown in FIGS. Accordingly, various types of roofing materials 1 having different angles can be manufactured by changing the distances L1 and L2 for each of the roofing material originals 1A or for each of the plurality of roofing original materials. Therefore, the angle of reflection of the light with respect to the sunlight X is different for each roof material, and the appearance of the shadow is also different.

[0009]

As described above, according to the present invention, by changing the cutting position for each roofing material at the time of punching a roofing material sheet, roofing materials having variously different roofing tip or slit angles can be obtained. The roof surface expression covered by the roofing material varies from building to building, thereby giving the roof surface a unique expression.

[Brief description of the drawings]

FIG. 1 is an explanatory view of processing a roof material tip portion according to the present invention.

FIG. 2 is a processing state diagram following FIG. 1;

FIG. 3 is an explanatory view of processing a slit portion according to the present invention.

FIG. 4 is a processing state diagram following FIG. 3;

FIG. 5 is an enlarged view of a roof material tip obtained by the method of the present invention.

FIG. 6 is a side view showing an example of a change in a tip angle of a roofing material.

FIG. 7 is a perspective view of a conventional example.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Slate roofing material 1A Roofing material original plate 2A Board 4 Cutting blade

Claims (1)

(57) [Claims] 1. An extruded product of an inorganic kneaded material is pressed to produce a predetermined plate-shaped roofing material original plate. Then, with the original plate fixed on a substrate, the tip of the original plate is cut off by a cutting blade and the tip is cut off. Along with aligning it to a predetermined angled shape, when cutting a slit from the leading end of the original sheet to the rear end of the original sheet with another cutting blade, changing the distance from the substrate to the cutting edge according to the roofing original sheet or the cutting edge, And a method of manufacturing a slate roofing material, wherein the angles of the slits are irregular.