JP7060359B2 - Metal siding panel and its manufacturing method - Google Patents

Description

The present invention relates to a metal siding panel and a method for manufacturing the same.

Conventionally, as a siding panel used for an outer wall of a building or the like, a metal siding panel in which an uneven shape is formed on a metal plate and a plurality of the siding panels are arranged side by side and adjacent ends are fitted to each other is known. At the time of molding, the metal siding panel is formed by passing a metal plate between a pair of embossed rolls to form an uneven shape. At this time, in order to prevent twists and wrinkles from being formed on the metal plate, not only the uneven handle is formed on the center side in the width direction, but also the fitting parts arranged on both outer sides in the width direction are embossed. It is known to form an uneven shape by processing.

By the way, in recent years, the metal siding panel is required to have a higher quality feeling, and it is required to improve the design by deeply forming an uneven shape as a pattern. When the uneven shape is deepened, twists and wrinkles are likely to be formed on the metal plate. Therefore, when manufacturing a metal siding panel, a technique has been proposed in which a groove is formed between the handle portion and the fitting portion to form a deep uneven shape (see, for example, Patent Document 1).

Japanese Unexamined Patent Publication No. 2014-173247

However, in order to further deepen the uneven shape formed on the metal plate and improve the design, it is not enough to simply form a groove between the handle and the fitting portion, and twists and wrinkles are formed. It was inevitable.

An object of the present invention is to provide a metal siding panel in which an uneven shape is formed deeper and the design is further improved.

In order to achieve the above object, the present invention is a rectangular metal siding panel (for example, the metal siding panel 1 described later) that is mounted side by side on the outer wall of a building, and the main body of the metal siding panel (for example, the main body described later). 10) is configured, and is arranged on both sides of the main handle portion (for example, the main handle portion 11 described later) having a plurality of uneven shapes extending in the longitudinal direction of the metal siding panel and the main handle portion in the longitudinal direction. It has a fitting portion (for example, a fitting portion 20 described later) that can be fitted to each other between the adjacent metal siding panels, and the main handle is between the main handle portion and the fitting portion. A first step portion (for example, the first step portion 31 described later) arranged at a position shallower than the maximum depth of the uneven shape of the portion and a position equal to or larger than the maximum depth of the uneven shape of the main handle portion. A metal siding panel on which a second step portion (for example, a second step portion 32 described later) is formed.

It is preferable that the fitting portion has a scraped portion having a plurality of uneven shapes having a shallower maximum depth than the main handle portion (for example, the scraped portion 12 described later).

A flat surface portion (for example, a flat surface portion 33 described later) arranged between the first step portion and the second step portion on one side portion in the longitudinal direction of the main handle portion and extending in the surface direction of the metal siding panel. ) Is preferable.

Further, the present invention is a method for manufacturing a plurality of rectangular metal siding panels that are mounted side by side on the outer wall of a building, and is a pair of cylindrical embossed rolls having an uneven shape extending in the circumferential direction formed on the surface (for example, described later). The embossing step (for example, the embossing step S2 described later) is included in which the surface is patterned by passing a metal plate (for example, the metal plate 101 described later) between the embossing rolls 4). The main body of the metal siding panel is composed of a main handle having a plurality of uneven shapes extending in the longitudinal direction of the metal siding panel, and arranged on both sides of the main handle in the longitudinal direction, which is the largest than the main handle. Between the handle portion having a plurality of shallow uneven shapes and the main handle portion and the waste handle portion, in order from the main handle portion side, the depth is higher than the maximum depth of the uneven shape of the main handle portion. Provided is a method for manufacturing a metal siding panel that forms a first step portion arranged at a shallow position and a second step portion arranged at a position equal to or higher than the maximum depth of the uneven shape of the main handle portion.

A fitting portion forming step (for example,) of forming a fitting portion that is arranged on both sides in the longitudinal direction of the main handle portion and can be fitted to each other between the adjacent metal siding panels by bending the scrap portion. It is preferable to further have the fitting portion forming step S3) described later.

According to the present invention, it is possible to provide a metal siding panel having a deeper uneven shape and further improved design.

It is a front view which shows the metal siding panel of this embodiment. It is sectional drawing of the metal siding panel of this embodiment. It is sectional drawing of the fitting part of the metal siding panel of this embodiment. The metal plate of this embodiment is shown, (a) is a partial front view of the metal plate, and (b) is a view in which the surface shape of the embossed roll forming the metal plate is developed into a plane. It is a figure which shows the correspondence between the metal siding panel of this embodiment and the surface shape of the developed embossed roll, (a) figure shows one end part in the width direction, (b) figure shows the other end part.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a front view showing the metal siding panel 1 of the present embodiment. As shown in FIG. 1, a plurality of metal siding panels 1 are mounted side by side on the outer wall of a building or the like. The metal siding panel 1 is a rectangular panel, and has a main body 10, a fitting portion 20, a first step portion 31, a second step portion 32, and a flat surface portion 33 (see FIG. 2).

The main body 10 is a rectangular plate-shaped portion having a front surface 10a visible from the outside of the metal siding panel 1 and a back surface 10b facing the outer wall side. On the surface 10a of the main body 10, a plurality of uneven shapes extending in the longitudinal direction of the metal siding panel 1 are formed as if a plurality of blocks were stacked. The portion where this uneven shape is formed is the main handle portion 11 which will be described later. In the present embodiment, for example, the maximum depth D1 (see FIG. 2) of the concave-convex shape of the handle 11 is 3.6 mm to 5.0 mm, preferably about 3.8 mm to 4.2 mm. There is. The main body 10 is an aluminum-zinc alloy plated steel plate (galvalume steel plate (registered trademark)) whose front surface 10a is plated on ultra-low carbon steel, and its back surface 10b is a sheet-like member such as paper, and the front surface 10a is A filler 10c such as a urethane foam material is arranged between the back surface 10b and the back surface 10b.

FIG. 2 is a cross-sectional view of the metal siding panel 1.
The fitting portion 20 is arranged along both side portions in the longitudinal direction at one end and the other end portion in the width direction of the main body 10 (main handle portion 11). The fitting portion 20 is configured so that when a plurality of metal siding panels 1 are arranged side by side, they can be fitted to each other between the adjacent metal siding panels 1.

The fitting portion 20 has a different shape between one end and the other end of the main body 10 in the lateral direction. The fitting portion 20 is arranged on the upper end side or the lower end side with a plurality of metal siding panels 1 arranged side by side at one end and the other end portion. The fitting portion 20 is formed by extending a metal plate 101 having a surface 10a continuous from the main body 10, and has a fitting concave portion 21 and a fitting convex portion 22. Further, as will be described later, in the portion forming the fitting portion 20 of the metal plate 101, the maximum depth D2 is shallower than the uneven shape of the main handle portion 11 of the main body 10, and the scraped portion having a plurality of uneven shapes. 12 is formed (see FIGS. 5 (a) and 5 (b)).

FIG. 3 is a cross-sectional view of the fitting portion 20 of the metal siding panel 1, in which one fitting recess 21 and the other fitting protrusion 22 of the metal siding panel 1 adjacent in the vertical direction are fitted to each other. It shows the state.

The fitting recess 21 is bent toward the back surface 10b of the main body 10, and a metal plate 101 on the surface 10a continuous from the main body 10 extends a predetermined length toward the inside of the main body 10 and bends there to be an end portion of the main body 10. It is formed to return to the side.

The fitting convex portion 22 has a protruding portion 221, an extending portion 222, and an extending portion groove 223.
The protrusion 221 is formed by folding the metal plate of the surface 10a constituting the main body 10 so as to extend outward and project outward at the central portion in the thickness direction of the main body 10.
The extending portion 222 is a planar portion extending outward from the proximal end side of the protruding portion 221 close to the main body 10, and extends on the same surface as the back surface 10b of the main body 10.
The extension groove 223 is a U-shaped recess formed between the lower end of the protrusion 221 and the base end of the extension 222.

The first step portion 31 (the first step portion 31a provided on the side where the fitting recess 21 is formed and the first step portion 31b provided on the side where the fitting convex portion 22 is formed are collectively referred to below. The first step portion 31) and the second step portion 32 (the second step portion 32a formed in the fitting recess 21 and the second step portion 32b formed in the fitting convex portion 22 are collectively referred to as follows. , The second step portion 32) is formed by bending a metal plate 101 continuous from the surface 10a of the main body 10 between the main body 10 and the fitting portion 20 as shown in FIG.

As shown in FIG. 2, the first step portion 31 is arranged at a position shallower than the maximum depth D1 of the uneven shape formed in the main handle portion 11 of the main body 10, that is, the uneven shape of the main handle portion 11. It extends outward of the body 10 between the highest outer part and the lowest inner part.

FIG. 3 is a cross-sectional view of the fitting portion 20 of the metal siding panel 1. As shown in FIG. 3, the first step portion 31a provided on the side where the fitting recess 21 is formed extends outward from the end portion of the main body 10 at the intermediate portion of the maximum depth D1 of the main handle portion 11. It is folded back at the distal end and bent toward the back surface 10b, and faces the inside of the main body 10.
The first stepped portion 31b provided on the side where the fitting convex portion 22 is formed extends outward from the end portion of the main body 10 and then further bends toward the center side in the thickness direction of the main body 10.
As described above, the fitting concave portion 21 and the fitting convex portion 22 have different shapes, but as shown in FIGS. 2 and 3, the first step portions 31a and 31b both have the maximum depth of the uneven shape of the surface 10a. At a position shallower than D1, it extends outward from the main body 10. As shown in FIG. 3, when one fitting recess 21 and the other fitting protrusion 22 of the metal siding panel 1 are fitted to each other, the first step portion 31a and the fitting protrusion of the fitting recess 21 are fitted to each other. The distal end of the first step portion 31b of the portion 22 abuts.

The second step portion 32 is a portion continuous from the distal end of the first step portion 31 toward the fitting portion 20 side. The second step portion 32 extends from the first step portion 31 side so as to reach the maximum depth D1 of the uneven shape of the surface 10a.
The second step portion 32a formed in the fitting recess 21 is inclined and extends from the folded first step portion 31a to the inside of the main body 10 to the maximum depth D1 of the main handle portion 11.
The second step portion 32b formed on the fitting convex portion 22 is inclined and extends from the first step portion 31b side formed on the fitting convex portion 22 to the maximum depth D1 of the main handle portion 11, and further extends as it is. The main body 10 is inclined toward the center side in the thickness direction to a position having a maximum depth of D1 or more.
As described above, the second step portion 32a formed in the fitting concave portion 21 and the second step portion 32b formed in the fitting convex portion 22 have different shapes, but are uneven from the first step portions 31a and 31b. It is common in that it extends toward the maximum depth D1 of the shape. As shown in FIG. 3, when one fitting concave portion 21 and the other fitting convex portion 22 of the metal siding panel 1 are fitted to each other, the second step portion 32b on the fitting convex portion 22 side is formed. It is located so as to be located on the back surface 10b side of the second step portion 32a on the fitting recess 21 side, and extends toward the center side in the thickness direction of the main body 10 at a larger inclination angle than the second step portion 32a.

The flat surface portion 33 has a first step portion 31b and a second step portion 32b at one side portion in the longitudinal direction of the main handle portion 11, that is, at the end portion of the main body 10 on which the fitting convex portion 22 is formed. Placed between. As shown in FIG. 3, the flat surface portion 33 has an end portion on the first step portion 31b of the fitting convex portion 22 on the second step portion 32b side and an end portion on the second step portion 32b on the first step portion 31b side. Between, it extends along the plane direction of the body 10. The flat surface portion 33 extends to the back side of the first step portion 31a provided on the fitting concave portion 21 side in a state where the fitting concave portion 21 and the fitting convex portion 22 are fitted.

FIG. 4A is a partial front view of the metal plate 101 before forming the metal siding panel 1. FIG. 4B shows a view in which the surface shape of the cylindrical embossed roll 4 that forms the uneven shape as shown in FIG. 4A on the metal plate 101 is developed into a plane. FIG. 5 (a) shows one end of the metal siding panel 1 and the unfolded embossed roll 4, and FIG. 5 (b) shows the other end. A method for manufacturing the metal siding panel 1 of the present embodiment will be described with reference to FIGS. 4 (a) to 5 (b).

As shown in FIGS. 4A and 4B, the metal siding panel 1 is formed by pressing a metal plate 101 against a cylindrical embossed roll 4 having an uneven shape extending in the circumferential direction formed on the surface thereof. , The main handle portion 11 and the waste handle portion 12 having a concave-convex shape symmetrical to the surface shape of the embossed roll 4 are formed.

First, the metal plate 101 forming the surface 10a and the fitting portion 20 of the main body 10 of the metal siding panel 1 is provided in a rolled state (providing step S1). In the providing process, the strip-shaped metal plate 101 is attached to the production line and moves in the processing progress direction.

The production line is provided with a pair of embossed rolls 4 on which the handle of the metal siding panel 1 is formed. The pair of embossing rolls 4 have an upper embossing roll arranged above and a lower embossing roll located below (not shown). The metal plate 101 is supplied so as to pass between the upper type embossing roll and the lower type embossing roll (embossing step S2). The surface of the metal plate 101 is patterned by passing between the pair of embossed rolls.

Here, the embossed roll 4 has different uneven shapes between the roll main handle portion 41 formed in the central portion in the width direction of the cylinder and the roll scrap portion 42 formed on both outer portions of the cylinder. Further, a roll groove portion 43 in which the uneven shape is not formed is formed between the roll main handle portion 41 and the portion in which the uneven shape of the roll scrap portion 42 is formed.

The roll main handle 41 abuts on the central portion in the width direction of the metal plate 101, and forms the main handle 11 on the corresponding portion of the metal plate 101. The uneven shape of the roll main handle 41 has a maximum depth D1 (height difference) of, for example, 3.6 mm to 5.0 mm, preferably 3.8 mm to 4.2 mm, and the same uneven shape of the main handle 11 Is formed. The main handle 11 of the metal plate 101 formed by the roll main handle 41 constitutes the surface 10a of the main body 10 of the metal siding panel 1 at the time of completion.

The roll scrap portion 42 abuts on both outer portions of the metal plate 101, and forms the scrap portion 12 at the corresponding portion of the metal plate 101. The roll scrap portion 42 has a maximum depth D2 shallower than the uneven shape of the roll main handle portion 41, and therefore the scrap handle portion 12 has a maximum depth D2 shallower than the main handle portion 11. The scrap portion 12 constitutes the fitting portion 20 of the metal siding panel 1 when completed.

The roll groove portion 43 abuts between the main handle portion 11 and the scrap portion 12 of the metal plate 101, and forms the groove portion 13 in the corresponding portion of the metal plate 101 (see FIG. 4A). As shown in FIGS. 5A and 5B, a step is formed in the roll groove portion 43, and the roll groove portion 43 has a roll with the first roll step portion 431 on the roll main handle portion 41 side. It has a second roll stepped portion 432 on the discarding portion 42 side. The first roll step portion 431 extends toward the roll disposal portion 42 at a position shallower than the maximum depth D1 of the roll main handle portion 41. The second roll step portion 432 extends from the end portion of the first roll step portion 431 on the roll waste portion 42 side toward the roll waste portion 42 at the position of the maximum depth D1 of the roll main handle portion 41.

As described above, in the embossing step S2, the metal plate 101 is sandwiched between the pair of embossed rolls 4 on which the roll main handle portion 41, the roll waste handle portion 42, and the roll groove portion 43 are formed, and the metal plate 101 is passed through the metal plate. The main handle portion 11, the waste handle portion 12, and the groove portion 13 are formed on the 101, respectively.

When the metal plate 101 is sandwiched between the pair of emboss rolls 4 and passed through, if the depth of the uneven shape formed on the main handle portion 11 of the metal plate 101 is too deep, the convex portions of the pair of emboss rolls 4 facing each other cause. The portion on the side edge side of the metal plate 101 is pulled toward the central portion in the width direction, and twists and wrinkles are likely to be formed on the metal plate 101. Here, if the maximum depth of the groove portion 13 of the metal plate 101 is made to match the maximum depth D1 of the main handle portion 11, the deep portion is located on the waste handle portion 12 side of the main handle portion 11, and the metal is formed. Since the entire width of the main handle portion 11 of the plate 101 is uniformly wound, twists and wrinkles are less likely to be formed on the peripheral edge of the main handle portion 11.

On the other hand, if the depth of the entire groove portion 13 is adjusted to the maximum depth D1 of the main handle portion 11, the thickness required for folding the waste handle portion 12 cannot be secured when forming the fitting portion 20. .. That is, since the fitting portion 20 is formed by bending the scrap portion 12 on the outside of the main body 10 in the thickness direction, the width in the thickness direction from the front surface 10a of the main body 10 toward the back surface 10b side is the fitting portion. It becomes the width for forming 20. When the groove portion 13 is deepened, the width between the front surface 10a and the back surface 10b becomes narrow, so that the width in which the fitting portion 20 can be formed becomes narrow. From the viewpoint of the joining strength of the metal siding panel 1, the fitting portion 20 needs to have a predetermined width. Therefore, the groove portion 13 is formed in a two-stage configuration, and the main handle portion 11 side of the groove portion 13 is extended shallower than the maximum depth D1 of the uneven shape of the surface 10a to provide a starting point for bending in order to form the fitting portion 20. It can be brought closer to the surface 10a side. Further, by extending the waste handle portion 12 side of the groove portion 13 to the position of the maximum depth D1 of the uneven shape of the surface 10a, it is possible to prevent wrinkles and the like from being formed on the main handle portion 11.

In the embossing step S2, after forming an uneven shape on the metal plate 101 with the embossing roll 4, the scraping portion 12 is bent to form fitting portions 20 arranged on both sides of the main handle portion 11 in the longitudinal direction. (Matching portion forming step S3). Specifically, in order from the main handle portion side, the main handle portion 11 side of the groove portion 13 is designated as the first step portion 31, and the waste handle portion 12 side of the groove portion 13 is designated as the second step portion 32.

As shown in FIG. 5A, on the fitting recess 21 side, the first step portion 31a is extended outward at a position shallower than the maximum depth D1 of the uneven shape of the surface 10a, and then the main body 10 side. Bend to. Further, the second step portion 32a is extended toward the lowest position of the maximum depth D1 of the concave-convex shape, the scrap portion 12 is overlapped on the back surface side of the main body 10, folded by a predetermined width, and bent outward of the main body 10. Let me.

As shown in FIG. 5B, on the fitting convex portion 22 side, the first step portion 31b is extended outward at a position shallower than the maximum depth D1 of the uneven shape of the surface 10a, and then the main body 10 The flat surface portion 33 is extended along the surface direction of the main body 10 by bending toward the center side in the thickness direction of the main body 10. Further, the second step portion 32a is extended from the flat surface portion 33 toward the lowest position of the maximum depth D1 of the concave-convex shape, and the scrap portion 12 is folded so as to project outward to form the protrusion 221. .. Then, it is bent again from the base end of the protrusion 221 toward the outside to form the extension portion 222 through the extension portion groove 223.

After that, a sheet-like member such as paper is attached to the back surface of the metal plate 101 to form the back surface 10b of the main body 10. Further, a filler 10c such as a urethane foam material is filled between the front surface 10a and the back surface 10b (core material filling, back surface forming step S4).
Then, the shape is straightened and cut (straightening, cutting step S5) to obtain a metal siding panel 1.

A plurality of the metal siding panels 1 formed as described above are arranged side by side according to the shape of the outer wall of the building or the like. The metal siding panel 1 is connected to each other by fitting the protrusion 221 of the other fitting convex portion 22 into one fitting concave portion 21 of the metal siding panel 1 adjacent in the vertical direction. A watertight material 224 such as rubber is arranged between the protrusion 221 and the fitting recess 21. When fitted in this way, as shown in FIG. 3, the first stepped portions 31a and 31b extend outward (on the surface 10a side) between the fitting concave portion 21 and the fitting convex portion 22 and are adjacent to each other. The joints between the metal siding panels 1 are obscured.

According to this embodiment, the following effects are achieved.
In the present embodiment, a plurality of rectangular metal siding panels 1 mounted side by side on the outer wall of a building constitute the main body 10 of the metal siding panel 1, and the main handle has a plurality of uneven shapes extending in the longitudinal direction of the metal siding panel 1. A portion 11 and a fitting portion 20 arranged on both sides in the longitudinal direction of the main handle portion 11 and capable of being fitted to each other between the adjacent metal siding panels 1 are included. Further, the first step portion 31 arranged between the main handle portion 11 and the fitting portion 20 at a position shallower than the maximum depth D1 of the uneven shape of the main handle portion 11 and the uneven shape of the main handle portion 11. A second step portion 32, which is arranged at a position of the maximum depth D1 or more of the above, is formed.
By providing the second step portion 32 at a position equal to or greater than the maximum depth D1 of the uneven shape of the main handle portion 11 between the main handle portion 11 and the fitting portion 20 of the metal siding panel 1, the metal plate 101 has unevenness. When forming the shape, it becomes difficult for the metal plate 101 to be twisted or wrinkled. Therefore, it becomes possible to deeply form the uneven shape of the main handle portion 11, and the design of the metal siding panel 1 can be improved.
Further, by forming the first step portion 31 at a position shallower than the maximum depth D1 of the main handle portion 11, even if the uneven shape of the main handle portion 11 is formed deeply, the fitting portion 20 has a required thickness. Since it can be formed in a siding, it is possible to improve the design while appropriately fitting and connecting the adjacent metal siding panels 1.

Further, in the present embodiment, the fitting portion 20 is configured to include a scraped handle portion 12 having a plurality of uneven shapes having a shallower maximum depth D2 than the main handle portion 11. By forming the fitting portion 20 by the scraped handle portion 12 having a plurality of uneven shapes having a shallower maximum depth D2 than the main handle portion 11, the uneven shape can be formed deeper in the metal plate 101, further. , It is possible to make it difficult for the metal plate 101 to be twisted or wrinkled. Therefore, it becomes easy to manufacture the metal siding panel 1 having improved design.

Further, in the present embodiment, the surface of the metal siding panel 1 is arranged between the first step portion 31 and the second step portion 32 at the end portion of the handle portion 11 on the side where the fitting convex portion 22 is formed. It is configured to include a flat surface portion 33 extending in the direction. By forming the flat surface portion 33 between the first stepped portion 31b and the second stepped portion 32b of the fitting convex portion 22, when the adjacent metal siding panels 1 are fitted together by the fitting portion 20, they are fitted. The flat surface portion 33 can be arranged so as to extend behind the first step portion 31 on the concave portion 21 side. Therefore, the joint portions of the adjacent metal siding panels 1 can be covered with the first step portion 31a on the fitting recess 21 side, and the first step portion 31a can be supported by the flat surface portion 33, so that they are adjacent to each other. The design of the joints between the metal siding panels 1 is improved.

Further, in the present embodiment, a method for manufacturing a plurality of rectangular metal siding panels to be mounted side by side on the outer wall of a building is performed between a pair of cylindrical embossed rolls 4 having an uneven shape extending in the circumferential direction formed on the surface. It was configured to include an embossing step S2 in which the surface was patterned by passing through the plate 101. Further, in the embossing step S2, the main body 10 of the metal siding panel 1 is formed, and the main handle portion 11 having a plurality of uneven shapes extending in the longitudinal direction of the metal siding panel 1 and both side portions of the main handle portion 11 in the longitudinal direction are formed. The book is arranged in order from the main handle 11 side between the scrap portion 12 having a plurality of uneven shapes whose maximum depth D2 is shallower than that of the main handle 11 and the main handle 11 and the scrap portion 12. The first step portion 31 arranged at a position shallower than the maximum depth D1 of the uneven shape of the handle portion 11 and the second step portion 32 arranged at a position equal to or higher than the maximum depth D1 of the uneven shape of the main handle portion 11. And was configured to form.
As a result, the same effect as described above can be obtained.

Further, in the present embodiment, by bending the waste handle portion 12, the fitting portions 20 which are arranged on both side portions in the longitudinal direction of the main handle portion 11 and can be fitted to each other are formed between the adjacent metal siding panels 1. The fitting portion forming step S3 is further included. This makes it possible to form a fitting portion 20 that facilitates the installation of the metal siding panel 1 while preventing twists, wrinkles, and the like from being formed on the handle portion 11.

The present invention is not limited to the above embodiment, and modifications, improvements, and the like to the extent that the object of the present invention can be achieved are included in the present invention.
For example, in the above embodiment, the handle 11 is formed of a galvalume steel plate (registered trademark), but the present invention is not limited to this. As long as it is the metal siding panel 1, the material is not limited, and it may be a galfan steel plate or another steel plate.
Further, in the above embodiment, the state in which the fitting convex portion 22 of the metal siding panel 1 is arranged on the upper end side and the fitting concave portion 21 is arranged on the lower end side is exemplified, but the present invention is not limited to this. The positions of the fitting convex portion and the fitting concave portion may be reversed, and the folded shape of the metal plate 101 is not limited to the shape described as long as the fitting structure due to the unevenness can be formed.

Further, in the above embodiment, in the groove portion 13 of the metal plate 101, the width of the step formed by the first roll step portion 431 on the surface of the embossed roll 4 is the width of the first step portion 31a and 31b of the metal siding panel 1, respectively. It is described that the width of the step corresponding to the position and formed by the second roll step portion 432 on the surface of the embossed roll 4 in the groove portion 13 matches the position of each of the second step portions 32a and 32b. However, it does not necessarily have to match on both sides of the fitting recess 21 and the fitting protrusion 22. At least either the side where the fitting recess 21 is formed (first step portion 31a, second step portion 32a) or the side where the fitting convex portion 22 is formed (first step portion 31b, second step portion 32b). In the above, the width of the step in the groove 13 formed by the first roll step portion 431 and the second roll step portion 432 on the surface of the embossed roll 4, and the position of the step of the first step portion 31 and the second step portion 32. Should match.

Further, the width of the step of the groove portion 13 to be the first step portion 31 and the second step portion 32 may be different between the fitting concave portion 21 side and the fitting convex portion 22 side.

1 Metal siding panel 4 Embossed roll 10 Main body 11 Main handle part 12 Discarded part 20 Fitting part 31 First step part 32 Second step part 33 Flat part 101 Metal plate S2 Embossing process S3 Fitting part forming process

Claims (2)

It is a method of manufacturing rectangular metal siding panels that can be mounted side by side on the outer wall of a building.
It includes an embossing step of patterning the surface by passing a metal plate between a pair of cylindrical embossing rolls having an uneven shape extending in the circumferential direction formed on the surface.
In the embossing process,
A main handle portion that constitutes the main body of the metal siding panel and has a plurality of uneven shapes extending in the longitudinal direction of the metal siding panel.
A scraped handle portion having a plurality of uneven shapes arranged on both sides in the longitudinal direction of the main handle portion and having a shallower maximum depth than the main handle portion.
A first step portion arranged between the main handle portion and the waste handle portion at a position shallower than the maximum depth of the uneven shape of the main handle portion in order from the main handle portion side, and the main handle. A method for manufacturing a metal siding panel that forms a second step portion arranged at a position equal to or higher than the maximum depth of the uneven shape of the portion. Further, a fitting portion forming step of forming a fitting portion which is arranged on both sides in the longitudinal direction of the main handle portion and which can be fitted to each other between the adjacent metal siding panels by bending the waste handle portion is further performed. The method for manufacturing a metal siding panel according to claim 1.

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