JP-7855191-B2 - Method of manufacturing simple decorative roof tiles

Inventors

• 石原 史也
• 石原 哲也
• 小田 靖浩

Assignees

• 創嘉瓦工業株式会社

Dates

Publication Date

20260508

Application Date

20220224

Claims (1)

1. A mold for forming a tile body having a rectangular top surface and a hanging portion with a horse-shaped pattern, and the overall cross-section being roughly L-shaped, Using an auxiliary mold for forming the beaded edge portion provided on the visible end of the tile body, A method for manufacturing a simple ridge tile, comprising arranging the surface for forming the overhang of the tile body perpendicular or diagonally to the pressing direction, fixing an auxiliary mold to one side of the main mold to form one side of the simple ridge tile, and then moving the auxiliary mold to the opposite side of the main mold to form the simple ridge tile on the opposite side.

Description

This invention relates to a method for manufacturing simple decorative roof tiles that have a hanging portion that gives the appearance of being constructed in a traditional decorative layer. Traditionally, the ridge structure of tiled roofs in Japanese houses, as shown in Figures 7 and 8, consisted of stacking multiple ridge tiles (noshigawara) using roofing clay or plaster, with a ridge tile (kanmurigawara) placed on top. The outer surface of the ridge tiles, the noshi surface 9, exhibits a staggered, serrated appearance due to the stacking process. This conventional ridge structure not only resulted in a heavy roof due to the weight of the ridge tiles and roofing clay, but also presented problems such as requiring skilled labor for the stacking process and being time-consuming to construct. Therefore, as shown in Figure 9, roof tiles with stepped ridge surfaces have been proposed with the aim of achieving an appearance similar to conventional ridge structures without the need for ridge stacking. Patent Document 1 describes a roof tile in which the crown tile and ridge tile are integrally formed, while Patent Document 2 describes a stepped ridge tile with a roughly U-shaped cross-section, formed separately from the crown tile. Japanese Utility Model Publication No. 54-152523Japanese Utility Model Publication No. 60-94516 However, with the above-mentioned roof tiles and stepped ridge tiles, the staggered pattern between the ridge surfaces, as shown in Figure 7, is not formed in the finished appearance. This makes it obvious that they are simple products and they do not appear to be professionally constructed. Furthermore, when press-molding tiles with a roughly U-shaped cross-section, such as the above-mentioned roof tiles and stepped ridge tiles, using an upper and lower die, it is easy to create a stepped shape on the sides using vertical press pressure, but forming a pattern with irregularities on the sides is not practical. This is because the press pressure of the die hardly acts in the lateral direction where the sides are located. While methods such as incorporating sliding members into the die to form a clear pattern on the sides could be considered, this would complicate the die structure and increase costs, making it undesirable. Furthermore, when press-molding the aforementioned tiles with a roughly U-shaped cross-section, the direction of pressure applied by the upper and lower dies is the same as the height direction of the tile. Therefore, due to the constraints of the die stroke length, there are limitations to increasing the height of the ridge surface, and it is practically only possible to create a step of about two to three levels on the ridge surface. For this reason, in order to reproduce the appearance of high ridge tiles of six to seven levels seen in temples and shrines, it is necessary to install conventional large ridge tiles below the stepped ridge tiles, as shown in Figure 7 of Patent Document 2, and the simplification of construction cannot be sufficiently achieved. In addition, these roof tiles and stepped ridge tiles have a constant width on both sides that straddle the ridge, which presents a problem as they cannot accommodate the wide ridges of large buildings. This is a perspective view of the simplified decorative roof tile according to the embodiment.This figure shows the appearance of the hanging portion when two sets of the simple decorative roof tiles shown in Figure 1 are placed side by side.This diagram shows the appearance of the hanging section of a simple decorative roof tile with five horizontal sections.This is a perspective view showing a right-facing decorative tile with a stepped ridge surface.This figure shows the method for manufacturing a right-hand decorative roof tile in an embodiment.This is a cross-sectional view showing a ridge structure using a simplified ridge tile according to the embodiment.This is a perspective view showing the traditional stacking structure.Figure 7 is a cross-sectional view of the stacked ridge structure shown.This diagram shows a conventional roof tile with integrated ridge and finial tiles. The following describes embodiments for carrying out the invention. The simplified decorative tile 10 of this embodiment, as shown in Figure 1, comprises a gently sloping rectangular upper surface portion 11 and a hanging portion 12 extending from one end of the upper surface portion 11. The upper surface portion 11 and the hanging portion 12 together form a roughly L-shaped cross-section, constituting the tile body 13. The simplified decorative tile 10 of this embodiment is, in principle, used in pairs, such as the right decorative tile 10a shown on the right side of the drawing and the left decorative tile 10b shown on the left side. The right decorative tile 10a and the left decorative tile 10b have a symmetrical configuration. Therefore, the configuration of the right decorative tile 10a will be described here, and the description of