Method of manufacturing simple decorative roof tiles

The L-shaped cross-section ridge tile, formed using a main and auxiliary mold, addresses the limitations of conventional tiles by allowing adjustable steps and width, achieving a genuine roof appearance with reduced material and labor needs.

JP7855191B2Active Publication Date: 2026-05-08SOKAWA IND CO LTD
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Patent Information

Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
SOKAWA IND CO LTD
Filing Date
2022-02-24
Publication Date
2026-05-08

AI Technical Summary

Technical Problem

Conventional roof tiles and stepped ridge tiles fail to replicate the staggered pattern of a genuine gable roof, are limited in the number of steps they can form, and cannot accommodate wide ridges, leading to complex die structures, high costs, and inefficient construction.

Method used

A simple ridge tile with an L-shaped cross-section is manufactured using a main mold and an auxiliary mold, allowing for the formation of a staggered pattern and adjustable number of steps, and can be used to create a genuine stacking appearance without requiring multiple layers or large tiles.

Benefits of technology

The solution enables a lightweight, cost-effective, and quick construction of a ridge structure that mimics a high-stacked roof with adjustable steps and width, reducing material usage and skill requirements.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a simple plain ridge tile which has an appearance of full-fledged plain ridge tiling with a simple construction, and which can freely set the number of stages of a plain ridge tile surface and the width of the ridge, to provide a manufacturing method of the same, and to provide a ridge structure using this simple plain ridge tile.SOLUTION: A simple plain ridge tile 10 includes a rectangular upper surface part 11, a tile body 13 having a substantially L-shaped cross section and comprising a hanging part 12 in which a horse joint pattern 14 is formed, and a bead part 17 formed at a face portion on a tail side of the tile body 13, and a ridge structure using the same is provided. Also, in a manufacturing method of the simple plain ridge tile 10, one side of the simple plain ridge tile 10 is molded by using a body metal mold for molding the tile body 13 in which a surface for molding the hanging part 12 is arranged perpendicularly or obliquely with respect to the press direction and by using an auxiliary metal mold fixed to one side surface of the body metal mold and for molding the bead part 17, and then, the auxiliary metal mold is moved to the side surface on the opposite side of the body metal mold, and the simple plain ridge tile 10 on the opposite side is molded.SELECTED DRAWING: Figure 1
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Description

Technical Field

[0001] The present invention relates to a simple ironing board with a hanging part presenting an appearance as if a genuine ironing stack has been made. roof tiles Manufacturing method In the law It is related thereto.

Background Art

[0002] Conventionally, as shown in FIGS. 7 and 8, the gable roof structure in a Japanese house is configured by stacking a plurality of tile irons using plastering materials such as clay and plaster, and placing ridge tiles such as ridge tiles on the topmost part. The ironing surface 9, which is the outer surface of the tile iron, presents a checkerboard-like appearance when stacked in an alternating pattern. In such a conventional gable roof structure, not only does the weight of the tile iron and plastering material make the roof heavy, but there are also problems such as the need for skill in the ironing stack work and the time-consuming construction.

[0003] Therefore, as shown in FIG. 9, tiles with a stepped ironing surface have been proposed for the purpose of presenting an appearance similar to the conventional gable roof structure without ironing stacks. Patent Document 1 describes a roof tile in which a ridge tile and a tile iron are integrally formed, and Patent Document 2 describes a stepped tile iron with a substantially U-shaped cross-section formed separately from the ridge tile.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Patent Document 2

[0005] However, with the above-mentioned roof tiles and stepped ridge tiles, the appearance after installation does not show the staggered pattern between the ridge surfaces as shown in Figure 7, making it obvious that they are simple products and giving the impression of a professional installation. 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 by vertical press pressure, but it is not practical to form a pattern with irregularities on the sides. This is because the press pressure of the die hardly acts in the lateral direction where the sides are located. Although methods such as incorporating sliding members into the die to form a clear pattern on the sides can be considered, this is undesirable because it complicates the die structure and increases costs.

[0006] 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 is a limit to how high the ridge surface can be made, and in practice, only about 2 to 3 steps of ridge surface can be formed. For this reason, in order to reproduce the appearance of high ridge tiles of 6 to 7 steps, as 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 wide ridges in large buildings. [Overview of the project] [Problems that the invention aims to solve]

[0007] The objective of this invention is to solve the above-mentioned problems of the conventional method, to create a simple stacked ridge beam that exhibits the appearance of an authentic ridge beam with simple construction, and allows for free setting of the number of tiers on the ridge beam and the width of the ridge. roof tiles Manufacturing method Law It is about providing. [Means for solving the problem]

[0008]

[0009]

[0010] The present invention, which was developed to solve the above problems, is characterized by using a main mold for forming a tile body having a rectangular upper surface and a hanging portion with a horse-shaped pattern formed thereon, and having an overall cross-section that is approximately L-shaped, and an auxiliary mold for forming a beaded edge portion provided on the bottom facing portion of the tile body, arranging the surface for forming the hanging portion of the tile body perpendicular or diagonally with respect to the pressing direction, fixing the auxiliary mold to one side of the main mold to form one side of the simple tile, and then moving the auxiliary mold to the opposite side of the main mold to form the simple tile on the opposite side.

[0011] [Effects of the Invention]

[0012] This invention provides a simple ridged roof tile that exhibits the appearance of an authentic ridged roof tile with simple construction, and allows for free setting of the number of ridges and the width of the ridge. Manufacturing method This will make it possible to provide this service. [Brief explanation of the drawing]

[0013] [Figure 1] This is a perspective view of the simplified decorative roof tile according to the embodiment. [Figure 2] This figure shows the appearance of the hanging portion when two sets of the simple ridge tiles shown in Figure 1 are placed side by side. [Figure 3] This diagram shows the appearance of the hanging section of a simple decorative roof tile with five horizontal sections. [Figure 4] This is a perspective view showing a right-facing decorative tile with a stepped ridge surface. [Figure 5] This figure shows the method for manufacturing a right-hand decorative roof tile in an embodiment. [Figure 6] This is a cross-sectional view showing a ridge structure using a simplified ridge tile according to the embodiment. [Figure 7] This is a perspective view showing the traditional stacking structure. [Figure 8] Figure 7 is a cross-sectional view of the stacked ridge structure shown. [Figure 9] This diagram shows a conventional roof tile with integrated ridge and finial tiles.

Mode for Carrying Out the Invention

[0014] The mode for carrying out the invention is shown below. As shown in FIG. 1, the simple ironing tile 10 of the embodiment includes a gently inclined rectangular upper surface portion 11 and a hanging portion 12 hanging from one end of the upper surface portion 11. The upper surface portion 11 and the hanging portion 12 together form a substantially L-shaped cross-section and constitute the tile body 13. In addition, the simple ironing tile 10 of the embodiment is generally used in a pair of left and right, like the right ironing tile 10a shown on the right side in the drawing and the left ironing tile 10b shown on the left side in the drawing. The right ironing tile 10a and the left ironing tile 10b have a configuration that is symmetrical with each other. Therefore, here, the configuration of the right ironing tile 10a will be described, and the description of the configuration of the left ironing tile 10b will be omitted.

[0015] As shown in FIG. 1, the hanging portion 12 of the right ironing tile 10a is formed at the right end of the upper surface portion 11. The hanging portion 12 of the embodiment has a flat ironing surface 121 which is an outer surface exposed to the outside when constructed on the ridge of a building, and a herringbone pattern 14 is formed on this ironing surface 121. The herringbone pattern 14 of the embodiment is formed by press molding. Note that the ironing surface 121 is not limited to a flat surface, and may have a stepped shape with steps as described later.

[0016] As shown in FIG. 1, the herringbone pattern 14 of the embodiment is formed by a plurality of horizontal joint grooves 15 extending in a direction parallel to the longitudinal direction of the ridge when constructed on the ridge, and vertical joint grooves 16 provided so as to be orthogonal to the horizontal joint grooves 15 between adjacent horizontal joint grooves 15. In the example shown in FIG. 1, the upper side 122 of the hanging portion 12, the two horizontal joint grooves 15, 14, and the lower side 123 of the hanging portion 12 are configured to be arranged at equal intervals. At this time, it is preferable that the horizontal step portion 124 formed between each adjacent side or groove is formed in a size such that the height in the vertical direction corresponds to the thickness of a general ironing tile. Also, in this example, one vertical joint groove 16 is formed at a position substantially in the center of the longitudinal direction of the horizontal step portion 124 formed between the horizontal joint grooves 15, 15.

[0017] As shown in FIG. 2, when the right roofing tiles 10a are arranged side by side horizontally, an appearance as if the roofing tiles are stacked in three layers is formed by connecting the dovetail patterns 14 on both sides. Thus, if the dovetail pattern 14 is formed on the ironing surface 121, the simple roofing tile 10 can present an appearance as if a genuine stacking of roofing tiles has been made.

[0018] The number of steps of the horizontal stepped portion 124 and the number of the vertical joint grooves 16 can be appropriately increased or decreased. In the example shown in FIG. 3, a five-step horizontal stepped portion 124 is formed, and the vertical joint grooves 16 are arranged so as not to overlap with the vertical joint grooves 16 of the adjacent upper or lower steps on the vertical axis, and the positions of the vertical joint grooves 16 every other step are aligned on the vertical axis.

[0019] As described above, the ironing surface 121 may be formed in a stepped shape. In the ironing surface 121 of the example shown in FIG. 4, the horizontal stepped portion 124 is formed in a stepped shape as the stepped surface 125. The boundary between the stepped surfaces 125 serves as a horizontal joint and forms the dovetail pattern 14. If the ironing surface 121 is provided with the stepped stepped surface 125 like this, it is possible to reproduce the displacement of the overlapping roofing tiles called chili in the traditional roofing tile stacking method, and a more genuine roofing tile stacking appearance can be presented.

[0020] In the example of FIG. 4, three stepped surfaces 125 are formed, but the number of steps of the stepped surface 125 is not limited to three and can be set as appropriate, and it is also possible to have four or more steps. In the conventional tiles with a stepped ironing surface, only about three steps of stepped surfaces could be formed, but according to the manufacturing method of the present invention described later, the stepped surface 125 can be formed over four or more steps. Therefore, it is possible to present a high roofing tile stacking appearance without stacking a plurality of simple roofing tiles 10 vertically.

[0021] In addition, in order to suppress the intrusion of rainwater after construction, it is preferable to form a bead edge portion 17 at the finding portion on the butt side of the simple roofing tile 10. In addition to this, it is preferable to provide a protrusion 18 on the side facing the upper side 122 of the upper surface portion 11.

[0022] (Manufacturing method) A method for manufacturing a simple ridge tile 10 will be described. Here, the example of manufacturing a right-handed ridge tile 10a, as shown in Figure 5, will be explained. The tile body 13 of the right-handed ridge tile 10a is formed by a main mold 20 equipped with an upper mold 21 and a lower mold 22. When the upper mold 21 and the lower mold 22 are closed, a cavity 23 in which the tile body 13 can be formed is created. Furthermore, an auxiliary mold (not shown) is attached and fixed to the side surface of the main mold 20, which will be the visible part, and the rim portion 17 is formed by the auxiliary mold.

[0023] In the embodiment shown in Figure 5, a protrusion (not shown) is formed on the inner surface IS of the upper mold 21, which is the surface for forming the hanging portion 12. During press molding, this protrusion forms a staggered pattern 14 on the flat surface 121. The inner surface IS is positioned perpendicular or oblique to the pressing direction when the mold is closed. As a result, the pressing direction to the tile base is perpendicular or oblique, allowing the staggered pattern 14 to be formed clearly and distinctly. The inner surface IS may also be provided on the lower mold 22.

[0024] This method of manufacturing is possible because the simple ridge tile 10 has a roughly L-shaped cross-section overall. According to the method described above, when increasing the area of ​​the overhang portion 12, it is less restricted by the stroke length of the mold, and the vertical height of the overhang portion 12 can be easily extended. As a result, the degree of freedom in forming the number of steps of the horizontal step portion 124 is increased, so it is possible to provide a simple ridge tile 10 that can give the appearance of having many steps of ridge tiles stacked, without having to lay larger ridge tiles underneath the simple ridge tile 10 or stack multiple simple ridge tiles 10 on top of each other.

[0025] Furthermore, the auxiliary mold can be attached to either one or the other side of the visible portion of the main mold 20. This allows the auxiliary mold to be fixed to one side of the main mold to form one side of the simple ridge tile (for example, the right ridge tile 10a), and then the auxiliary mold to be moved to the opposite side of the main mold to form the simple ridge tile on the opposite side (for example, the left ridge tile 10b). In this way, by using the auxiliary mold to form the rim portion 17, the left and right simple ridge tiles 10 can be manufactured using one main mold 20, eliminating the need to create separate molds for the left and right sides and reducing manufacturing costs.

[0026] In addition to the method described above, for example, the hanging portion 12 can be pressure-molded into a flat plate shape using an upper mold and a lower mold, and one end of the hanging portion 12 can be bent and molded to form the upper surface portion 11. In this case, if irregularities are provided on the inner surface of the upper mold or the lower mold, and pressure is applied from above and below to the tile base placed horizontally, it becomes possible to press-molde a staggered pattern onto the surface of the hanging portion 12.

[0027] Next, a ridge structure using the simple ridge tile 10 will be described. As shown in Figure 6, the ridge structure of the embodiment comprises a plurality of ridge fittings 40 fixed on the roof underlayment 30, and a core material 50 fitted into the ridge fittings 40 and positioned along the ridge of the roof. Multiple ridge fittings 40 are provided at predetermined intervals according to the length of the ridge to be installed, so as to stably support the core material 50. In addition, although the core material 50 in the embodiment is made of wood, it may be made of other materials.

[0028] A pair of right-facing ridge tiles 10a and left-facing ridge tiles 10b are placed opposite each other on both sides of the core material 50, and nails S inserted through nail holes 111 formed in the upper surface portion 11 of each ridge tile are driven into the core material 50 to fix them in place. After the entire ridge is covered with the simple ridge tiles 10, the ridge tiles are placed on top of the upper surface portion 11 of the simple ridge tiles 10 and fixed in place. In the example shown in Figure 6, the ridge tiles are crown tiles 60, but other shapes such as ridge tiles may also be used. Furthermore, as mentioned above, in the present invention, the appearance of a high ridge-stacked structure can be reproduced without stacking multiple simple ridge tiles 10 vertically, so the lower end of the hanging portion 12 can be positioned to abut against the ridge tiles laid at the edge of the ridge. In addition, a ridge structure in which a face tile is provided below the simple ridge tiles 10 may also be used.

[0029] With the simplified ridge tile 10 and ridge structure using it described above, the conventional method of stacking tiles using roofing clay is unnecessary, thus requiring less skill for the construction of the ridge section, and enabling simple and quick roofing. In addition, since roofing clay is not required and fewer tiles are needed, the ridge structure can be made lighter. In the case of the simplified ridge tile 10 of the embodiment, depending on the height of the ridge surface 121, a weight reduction of more than 50% compared to the conventional stacking method can be expected. Furthermore, because the simplified ridge tile 10 of the present invention has a pair of structures separated into left and right sides, it can be used for wide ridge sections in large buildings, and it is possible to combine wide ridge tiles. In addition, while conventional stepped ridge tiles, which have a roughly U-shaped cross-section as a whole, had to be cut in half on-site as needed, the simplified ridge tile 10 of the present invention does not require the effort of cutting in half, resulting in better workability and no loss due to mis-cutting.

[0030] Although the present invention has been described above with reference to the embodiments described, the present invention is not limited to the above embodiments and can be implemented in various forms. [Explanation of Symbols]

[0031] 10 Simple Noshi tiles 10a Right noshi tile 10b left noshi tile 11 Top part 12 Hanging part 121 Noshi mask 122 Top edge 123 Lower edge 124 Horizontal section 13 Tile body 14 Horse-eye pattern 15 Horizontal graben 16 Vertical joint groove 17. Beaded edge 18 protrusion 20 Main mold 21 Upper mold 22 Lower mold 23 Cavity 30 Roof underlayment 40 Building fittings 50 Core material

Claims

[Claim 1] A mold for forming a tile body having a rectangular upper surface and a hanging portion having a horse-shaped pattern formed thereon, and the overall cross-section being substantially 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.

Citation Information

Patent Citations

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