JP7431576B2 - Architectural boards and architectural panels - Google Patents

Description

The present disclosure relates to a building board and a building panel, and more particularly to a building board and a building panel including the building board.

Conventionally, walls of structures such as buildings have been made of ALC, extruded cement boards, etc., ceramic materials such as siding materials, and metal sandwich panels. For example, a sandwich panel is constructed by sandwiching a core material such as gypsum board or rock wool between front and back metal surface plates.

When forming architectural boards that make up the walls of buildings, etc. from a single rectangular board such as a metal or steel plate into a single piece with multiple side surfaces, processing is required by making cuts etc. Then, multiple sides are folded. That is, in order to form side ends that are adjacent to each other and become side surfaces, it is necessary to perform processing such as cutting in advance around the corners of the rectangular plate material.

Furthermore, in order to adjust the width of the gap between the outer walls of a structure such as a building, building boards and panels are sometimes used to fill the gaps between the outer walls. In such a case, it is necessary to control the dimensions of the width adjustment panel itself and process it to match the gap between the outer walls.

For example, in the metal sandwich panel of Patent Document 1, a core material is filled between two metal skins, and a side cover piece is provided by bending the side edge of the metal skin to cover the side end surface of the core material. This is disclosed.

Japanese Patent Application Publication No. 2012-172333

However, in the metal sandwich panel of Patent Document 1, the gap (slit) between the adjacent side portions is likely to be exposed on the front side of the wall surface at the corner portion when the adjacent side edge portions of the metal outer skin are bent. There was a problem.

An object of the present disclosure is to provide a construction board and a construction panel that can prevent gaps between adjacent side walls from being exposed to the front side.

An architectural board according to an aspect of the present disclosure includes a rectangular board, a pair of side walls protruding from two adjacent sides of the rectangular board toward the back side, and a building board located between the pair of side walls, A tongue piece protruding from the corner portion to the back surface side. A protruding length of the pair of side wall portions is longer than a protruding length of the tongue piece. The tip of the tongue piece intersects with the pair of side walls.

A construction panel according to one aspect of the present disclosure includes a core material, and a pair of outer skin material and inner skin material that face each other with the core material in between. The outer skin material includes the building board.

A method for manufacturing a construction board according to an aspect of the present disclosure includes a rectangular board, a pair of side wall parts protruding from two adjacent sides of the rectangular board to the back side, and a pair of side wall parts located between the pair of side wall parts, The method of manufacturing a construction board includes a tongue piece protruding from a corner portion of the rectangular board toward the back side. The method includes forming a first side wall and a second side wall by bending the pair of side wall portions.

The architectural board and architectural panel of the present disclosure have the advantage that the gap between the abutted portions of the side walls adjacent to the front side is not easily exposed.

FIG. 1 is an enlarged perspective view of a part of the construction board according to the first embodiment. FIG. 2A is an enlarged perspective view of a part of FIG. 1 further enlarged. FIG. 2B is an enlarged perspective view showing a part of the above construction board in more detail. FIG. 3A is a perspective view schematically showing the construction board same as above. FIG. 3B is a front view schematically showing the construction board same as above. FIG. 4A is an enlarged view of a part of the above construction board, schematically showing the first side wall viewed from the front. FIG. 4B is a cross-sectional view taken along the line AA in FIG. 4A. FIG. 4C is an enlarged view of a part of the above construction board, schematically showing the front surface of the rectangular board. FIG. 4D is a sectional view taken along line BB in FIG. 4C. FIG. 5 is a developed view schematically showing a state in which the same construction board as above is developed. FIG. 6A is a developed view schematically showing the vicinity of the tongue when the construction board is developed. FIG. 6B is a developed view showing the vicinity of the tongue in more detail when the construction board is unfolded. FIG. 7A is an enlarged perspective view showing one state of the construction board manufacturing process. FIG. 7B is an enlarged view showing another state of the construction board manufacturing process. FIG. 8 is a reduced development view showing a state in which the entire construction board same as the above is developed. Each of FIGS. 9A to 9E is an enlarged perspective view schematically showing a modified example of the above construction board. FIG. 10A is a perspective view schematically showing a construction board according to the second embodiment. FIG. 10B is a front view schematically showing the construction board same as above. FIG. 11A is a perspective view schematically showing the construction board same as above. FIG. 11B is a further enlarged perspective view of the enlarged view of FIG. 11A. FIG. 12A is a perspective view schematically showing a construction panel according to the third embodiment. FIG. 12B is a front view schematically showing the construction board same as above. FIG. 13 is an enlarged view of a part of the construction panel same as above and schematically showing the first side wall viewed from the front.

1. Overview First, an overview of the present embodiment will be described with reference to the drawings.

The architectural board 1 according to the present embodiment can be used, for example, as an outer skin material for a wall of a structure, or as a surface forming an exterior surface or an interior surface of a construction panel 10 such as a sandwich panel forming a wall or the like. It can also be used as a plate material.

The construction board 1 according to the present embodiment includes a rectangular board 2, a pair of side walls 21 and 22, and a tongue piece 3, as shown in FIGS. 1A to 2B, for example. The pair of side wall portions 21 and 22 protrude from two adjacent sides (201 and 202) of the rectangular plate 2 toward the back side. The tongue piece 3 is located between the pair of side wall parts 21 and 22, and protrudes from the corner part 30 of the rectangular plate 2 toward the back side. The protruding length of each of the pair of side wall parts 21 and 22 is longer than the protruding length of the tongue piece 3. The tip 31 of the tongue piece 3 and the pair of side walls 21 and 22 intersect (see FIGS. 2A and 2B).

Specifically, the construction board 1 includes tongue pieces 3 at the corner portions 30 of the rectangular board 2. The tongue piece 3 protrudes so that the tip portion 31 of the tongue piece 3 and a pair of side wall portions (hereinafter also referred to as the first side wall 21 and the second side wall 22) intersect. The tongue piece 3 is bent toward the back surface 2b side of the rectangular plate 2. For this reason, in the construction board 1, each of the first side wall 21 and the second side wall 22 is bent, and the gap near the corner portion 30 where the first side wall 21 and the second side wall 22 are adjacent to each other is Covered by piece 3.

In the construction board 1, by having the above-mentioned tongue piece 3, the pair of side walls 21, 22 can be bent, and wrinkles due to the bending of the pair of side walls 21, 22 can be made less likely to occur in the abutting portion formed. . Therefore, by providing the tongue piece 3, wrinkles are less likely to appear on the surface 2a of the rectangular board 2 in the building board 1, and the appearance of the outer wall formed with the building board 1 can be made less likely to be damaged.

Further, in the construction board 1, the protruding length of the pair of side walls 21, 22 is longer than the protruding length of the tongue piece 3, and the tip end 31 of the tongue piece 3 and the pair of side walls 21, 22 intersect. are doing. Thereby, the construction board 1 can make it difficult to expose the gap between the abutting portions even to the front side (that is, the surface 2a of the rectangular board 2). For this reason, the architectural board 1 can be made more difficult to damage the appearance than conventional architectural boards that are formed by processing such as notches, and can avoid exposing gaps (slits) on the front side of the wall surface. It can be made difficult. Therefore, the building board 1 of this embodiment has high water-stopping properties because water leakage is less likely to occur on the front side thereof. Furthermore, in the corner portion 30 of the construction board 1, defects such as rust are less likely to occur in the abutting portions of adjacent side wall portions 20. Therefore, the construction board 1 has excellent durability.

Note that the rectangular plate 2 referred to here does not necessarily mean that its shape is strictly rectangular, but has at least four sides, these four sides are connected continuously, and the shape can be regarded as a rectangle. It is sufficient if the For example, in the rectangular plate 2, the connecting portions of the four sides may be continuous via a circular arc, that is, the four corners 30 of the rectangular plate 2 are not limited to being at right angles, but the corner portions 30 may be rounded. It may be tinged with.

As already mentioned, the building board 1 of this embodiment can be suitably used as an exterior material for structures such as buildings. For example, the building board 1 can be suitably used as a width-adjusting wall material for filling a gap between an outer wall of a building and an adjacent outer wall. Furthermore, as described above, it can also be suitably used as a surface plate material that forms at least one or both of the exterior and interior surfaces of the architectural panel 10 such as a sandwich panel that forms the walls of a structure. It is also possible to use it as a panel such as a sandwich panel for width adjustment.

2. Details The architectural board 1 according to one embodiment of the present invention will be described in more detail with reference to specific embodiments.

2.1. First Embodiment A construction board 1 according to a first embodiment will be described with reference to FIGS. 1A to 9.

The architectural board 1 of the first embodiment is used, for example, as a width adjustment accessory for a wall surface, specifically as a part of wall material constituting the wall surface. The architectural board 1 is a member for filling the width between wall surfaces. In addition, the building board 1 is not limited to this, and of course may be used to form an outer wall with the building board 1.

As shown in FIGS. 3A and 3B, the building board 1 includes a rectangular board 2, a pair of side walls (first side wall 21, second side wall 22), and a tongue piece 3. The first side wall 21 and the second side wall 22 protrude from two adjacent sides 201 and 202 of the rectangular plate 2 toward the surface opposite to the front surface 2a (for example, the back surface 2b shown in FIG. 1).

More specifically, the construction board 1 according to the present embodiment has a rectangular board 2 with one surface as the front surface 2a, and a back surface 2b side from each side including two adjacent sides 201 and 202 of the rectangular board 2. It is provided with four side wall parts 20 extending from .

The side wall portion includes a first side wall 21 , a second side wall 22 , a third side wall 23 , and a fourth side wall 24 . Hereinafter, unless the first side wall to the fourth side wall (21 to 24) are particularly distinguished, they will be collectively referred to as the "side wall portion 20."

3A and 3B, the first side wall 21 is adjacent to the second side wall 22 and the fourth side wall 24, and the second side wall 22 is adjacent to the first side wall 21 and the third side wall 23. Further, the first side wall 21 and the third side wall 23 face each other, and the second side wall 22 and the fourth side wall 24 face each other.

The protruding lengths of the first side wall 21 and the second side wall 22 are longer than the protruding length of the tongue piece 3. That is, the length of the first side wall 21 and the second side wall 22 protruding from the two sides 201 and 202 is longer than the length of the tongue piece 3 protruding. Similarly, the protruding lengths of the third side wall 23 and the fourth side wall 24 are longer than the protruding length of the tongue piece 3. Note that the tongue piece 3 will be described later.

The first side wall 21 and the second side wall 22 are formed substantially perpendicular to each other. Moreover, the third side wall 23 and the fourth side wall 24 are formed to be substantially perpendicular to each other. In other words, the line segment passing through the first side 201 of the rectangular plate 2 and the line segment passing through the second side 202 are approximately orthogonal, and the line segment passing through the third side 203 and the line segment passing through the fourth side 204 of the rectangular plate 2 are substantially orthogonal. (see FIG. 8, for example).

The rectangular plate 2 has a corner portion 30 near the intersection of a line segment passing through the first side 201 and a line segment passing through the second side 202, and the tongue piece 3 is formed at the corner portion 30. In this embodiment, each corner portion 30 of the rectangular plate 2 has a substantially arc shape. That is, each corner portion 30 of the rectangular plate 2 is rounded (see FIGS. 4A and 4D).

The architectural board 1 has a first bent part 241 between the rectangular board 2 and the first side wall 21 (see FIG. 2B). The first bent portion 241 is bent from the front surface 2a side of the rectangular plate 2 toward the back surface 2b side, thereby forming the first side wall 21. That is, in the construction board 1, the rectangular board 2 and the first side wall 21 are connected via the first bent portion 241. The first bent portion 241 includes a first side 201 of the rectangular plate 2, a first bent piece 251, and a first side 211 on the first side wall 21 side. The first bent piece 251 is located between the first side 201 of the rectangular plate 2 and the first side 211 on the first side wall 21 side, and has a curvature. In other words, the first bent piece 251 can be said to be a boundary between the rectangular plate 2 and the first side wall 21 for forming the first side wall 21 by bending the first bent part 241 with respect to the rectangular plate 2. . The first bent piece 251 in the first bent part 241 is aligned with the first side 201 of the rectangular plate 2 and the first side 211 of the first side wall 21 in the developed view (see FIGS. 6A and 6B). In this case, the first bent piece 251 has a midpoint P11 on a line segment perpendicular to a line segment passing through the first side 201 of the rectangular plate 2 and a line passing through the first side 211 of the first side wall 21. (See Figure 8).

Furthermore, the building board 1 has a second bent portion 242 between the rectangular board 2 and the second side wall 22 (see FIG. 2B). The second bent portion 242 is bent from the front surface 2a side of the rectangular plate 2 to the back surface 2b, thereby forming the second side wall 22. That is, in the building board 1, the rectangular board 2 and the second side wall 22 are connected via the second bent portion 242. The second bent portion 242 includes the second side 202 of the rectangular plate 2, the second bent piece 252, and the first side 221 on the second side wall 22 side. The second bent piece 252 is located between the second side 202 of the rectangular plate 2 and the second side 221 on the second side wall 22 side, and has a curvature. In other words, the second bent piece 252 can be said to be a boundary between the rectangular plate 2 and the second side wall 22 for forming the second side wall 22 by bending the second bent part 242 with respect to the rectangular plate 2. . The first bent piece 251 in the second bent part 242 is aligned with the first side 201 of the rectangular plate 2 and the first side 211 of the first side wall 21 in the developed view (for example, see FIG. 2A). In this case, the second bent piece 252 passes through the midpoint P12 of a line segment perpendicular to the line segment passing through the second side 202 of the rectangular plate 2 and the line segment passing through the first side 221 of the second side wall 22. It is preferable (see FIG. 8).

In addition, in FIG. 2B, each of the first bending part 241 and the second bending part 242 shown by the two-dot chain line is shown near the tongue piece 3 (or corner part 30) of the building board 1. is shown schematically, and the positions of the first bent part 241 and the second bent part 242 are not limited to the positions shown in FIG. 2B.

In the corner portion 30 of the rectangular plate 2, the first bent portion 241 and the second bent portion 242 are preferably continuous. Specifically, in the building board 1, it is preferable that the first side 201 of the first bent part 241 and the second side 202 of the second bent part 242 are smoothly connected. Moreover, it is preferable that the first bent piece 251 of the first bent part 241 and the second bent piece 252 of the second bent part 242 are smoothly connected. In this case, even when an external wall is formed from the architectural board 1, the gap formed at the butt part can be made more difficult to expose to the front side of the wall surface, and the vicinity of the corner part 30 of the wall surface can be made smooth. , can improve the appearance of the exterior wall. In the corner portion 30 of the rectangular plate 2, it is more preferable that the first side 211 of the first side wall 21 and the first piece 221 of the second side wall 22 in the first bent portion 241 are continuous.

Similarly, the building board 1 may have a third bent portion 243 that is bent to form the third side wall 23 between the rectangular board 2 and the third side wall 23 (see FIG. 8). Similarly, the building board 1 may have a fourth bent part 244 between the rectangular board 2 and the fourth side wall 24, which is bent to form the fourth side wall 24 (see FIG. 8). . In addition, in FIG. 8, each bending part (first bending part 241, second bending part 242, third bending part 243, and fourth bending part 244) is schematically shown, and the illustrations are not exaggerated. However, this is not intended to limit the position, shape, size, etc. of each bent portion.

As shown in FIGS. 6A and 6B, which are exploded views, each end of each side wall portion 20 has a cutout piece 410 (a first cutout piece 411, a second cutout piece 411, and a second cutout piece 410 cut out in a substantially L-shape). It is preferable that a cutout piece 412 (also referred to as a cutout piece 412 or the like) is formed, and each cutout piece 410 is preferably spaced apart from each other.

The first cutout piece 411 includes a first corner 421 and a second corner 431, as shown in FIGS. 2A and 2B, for example. The second cutout piece 412 includes a third corner 422 and a fourth corner 432, as shown in FIGS. 2A and 2B, for example. That is, each cutout piece 410 includes at least two corners 420 and 430. Note that the term "corner" as used herein is not necessarily limited to one having an angle formed from two or more sides, such as a right angle, an acute angle, or an obtuse angle, but also includes one having a roundness. For example, the first corner 421 and the second corner 431 of the first cutout piece 411 may be rounded (see, for example, FIG. 9B). Similarly, the third corner 422 and fourth corner 432 of the second cutout piece 412 may be rounded. That is, at least one of the corners 420 (421, 422) and 430 (431, 432) may be rounded.

As shown in FIGS. 4A to 4D, for example, when the first side wall 21 has a first cutout piece 411 and the second sidewall 22 has a second cutout piece 412, the portion that becomes the first sidewall 21 and By bending the portion that will become the second side wall 22, the first cutout piece 411 and the second cutout piece 412 of the adjacent first sidewall 21 and second sidewall 22 are brought close to each other. Then, the second corner 431 of the first cutout piece 411 and the fourth corner 432 of the second cutout piece 412 come close to each other, so that the tongue piece located between the adjacent side wall parts 20 3, a space is formed in which the tongue piece 3 can be accommodated.

The distance (dimension) between the first cutout piece 411 and the second cutout piece 412 may be set as appropriate. For example, when the tongue piece 3 is bent, the both ends of the tongue piece 3 are It is sufficient that they are spaced apart to the extent that they do not come into contact with each of the cutout piece 411 and the second cutout piece 412. In addition, although the shape of the notch piece 410 is approximately L-shaped in this embodiment, it is not limited to this, and may be, for example, approximately C-shaped.

It is preferable that the first cutout piece 411 and the second cutout piece 412 protrude from the tip 31 of the tongue piece 3 in a direction perpendicular to the direction aligned with the surface 2a of the rectangular plate 2. In this case, as shown in FIGS. 3B and 3C, it is preferable that the protruding tip of the first cutout piece 411 and the protruding tip of the second cutout piece 412 intersect and not contact each other.

The tongue piece 3 has a tip portion 31, both side end portions 33 and 34, and a bent portion 35 (see, for example, FIGS. 2A and 2B). In the tongue piece 3, the bent portion 35 is located on the opposite side of the tip portion 31, and at least a portion of the tip portion 31 and the bent portion 35 are opposed to each other. The first side end portion 33 and the second side end portion 34 of both side end portions are opposed to each other. Moreover, the tongue piece 3 is located between the first side wall 21 and the second side wall 22 adjacent to the first side wall 21, as described above. The tongue piece 3 protrudes toward the back surface 2b at the corner portion 30 of the rectangular plate 2.

Conventional architectural boards are formed by cutting and processing them (processing and forming), but when bent to form the side wall, the notches are exposed on the surface of the building board (the front side of the exterior wall material). do. Further, when processing without making cuts, more complicated processing and larger equipment (for example, a press machine and a mold) are required in the bending process. In contrast, in this embodiment, the construction board 1 is provided with the tongue piece 3, so that even when the construction board 1 is formed by cutting and processing, the gap due to the cuts etc. can be used for construction. It is possible to make it difficult to expose even the front (surface) of the outer wall formed from the plate 1. Furthermore, since the building board 1 of this embodiment can be formed by forming the side wall portion 20 and bending the tongue piece 3, it can be manufactured without using complicated processing or large-sized equipment. be. Therefore, the building board 1 of this embodiment is less susceptible to external dimensions, and when manufacturing the building board 1, it is less likely to be subject to dimensional restrictions.

The tip 31 of the tongue piece 3 intersects with the first side wall 21 and the second side wall 22. The protruding length of the tongue piece 3 is formed shorter than the protruding lengths of the first side wall 21 and the second side wall 22. Therefore, as described above, even if the tongue piece 3 is bent, the tongue piece 3 can be accommodated in the space formed by the notch pieces 210 of adjacent side wall parts 20 being close to each other. The protruding length of the tongue 3 herein means the length from the tip 31 of the tongue 3 to the bent portion 35 of the tongue 3. In the construction board 1 of this embodiment, among the cut portions in the vicinity of the bent portion 35 of the tongue piece 3, particularly the cut portion on the side closer to the bent portion 35 of the tongue piece 3, which will be described later, The tip of the chip 410 is designed not to reach the surface 2a of the rectangular plate 2. Therefore, it is possible to make it difficult to expose the gap formed by the side wall portion 20 to the front side of the building board 1. Further, a gap portion that may be formed between the first side wall 21, the second side wall 22, and the tongue piece 3 can be filled with a sealing material or the like. An appropriate material can be used as the sealant.

It is preferable that each of the opposite end portions 33 and 34 of the tongue piece 3 be located between the first cutout piece 411 and the second cutout piece 412. In this case, even if the wall surface is formed from the architectural board 1, the space (gap) formed between the adjacent notch pieces 411 and 412 can be filled with the entire tongue piece 3, and the butt part This can contribute to making it difficult to expose gaps caused by

The bent portion 35 of the tongue 3 is located on the opposite side of the tip 31 of the tongue 3. It is preferable that the bent portion 35 connects the first side wall 21 and the second side wall 22 at a position where the first bent portion 241 and the second bent portion 242 intersect. That is, it is preferable that the first bent portion 241 and the second bent portion 242 are continuous through the tongue piece 3 at the corner portion 30 of the rectangular plate 2 .

Although the shape of the tongue piece 3 is not particularly limited, it is, for example, approximately rectangular. When the shape of the tongue piece 3 is approximately rectangular, the length dimension of the tip part 31 of the tongue piece 3 and the length dimension from one end of the bent part 35 to the other end may be the same. .

More specifically, the shape of the tongue piece 3 may be approximately trapezoidal, as shown in FIGS. 9C to 9E, for example. In FIGS. 9C and 9D, both ends of the bent portion 35 of the tongue piece 3 are located in a direction away from each other. That is, the length of the bent portion 35 from one end to the other end is longer than the length of the tip 31. On the other hand, in FIG. 9E, both ends of the bent portion 35 of the tongue piece 3 are located in a direction approaching each other. That is, the length of the bent portion 35 from one end to the other end is shorter than the length of the tip 31. In addition, in FIG. 9D, the tip 410a of the first cutout piece 410 is located in a direction closer to the pair of side wall parts 20.

Further, the shape of the tongue piece 3 may be such that, for example, the tip portion 31 has a circular arc. In addition, when the tip part 31 has a circular arc, there is no particular restriction on the direction of the circular arc. Contains a concave arc in the opposite direction. Further, for example, the tongue piece 3 may be curved so that its center portion protrudes from both side end portions 33 and 34 of the tongue piece 3. Further, both side ends 33 and 34 of the tongue piece 3 may also be formed to have circular arcs, and in this case as well, the direction of the circular arcs at both side ends 33 and 34 is not particularly limited. In addition, in FIG. 9E, the tip 410a of the first cutout piece 410 is located in the direction away from the pair of side wall portions 20 side.

The tongue piece 3 may be located between the second side wall 22 and a third side wall 23 adjacent to the second side wall 22. Further, the tongue piece 3 may be between the third side wall 23 and the fourth side wall 24 adjacent to the third side wall 23, or between the fourth side wall 24 and the first side wall 21 adjacent to the fourth side wall 24. It may be in between. That is, the tongue piece 3 may be provided at at least one of the four corner parts 30 of the rectangular plate 2, and the number of the tongue pieces 3 is not particularly limited. Of course, the tongue pieces 3 may be provided at all four corners 30 of the rectangular plate 2 (for example, see FIG. 8). In this case, the gaps between any of the side wall parts 20 and the tongue pieces 3 may be filled with a sealing material as appropriate.

The construction board 1 is arranged between one of the both ends of the tongue piece 3 on the side of the first cutout piece 411 (referred to as the first side end 33 of the tongue piece 3) and the first cutout piece 411. It has a first slit portion 511. Furthermore, the construction board 1 has the other of the both side ends of the tongue piece 3 on the second notch piece 412 side (referred to as the second side end part 34 of the tongue piece 3), and the second notch piece 412. A second slit portion 512 is provided in between. The first slit portion 511 and the second slit portion 512 are part of the space formed by the first cutout piece 411 and the second cutout piece 412 for bending the tongue piece 3, and the tongue piece 3 is bent. Each is formed by being Note that the construction board 1 is not limited to the first cutout piece 411 and the second cutout piece 412, and may have cutout pieces other than these.

It is preferable that a tip 511a of the first slit portion 511 located on the surface 2a side of the rectangular plate 2 is located closer to the first side wall 21 than the surface 2a of the rectangular plate 2. Specifically, the tip 511a of the first slit portion 511 is preferably located closer to the line segment passing through the first side 211 of the first side wall 21 than the line segment passing through the first side 201 of the rectangular plate 2. It is preferable that the tip of the second slit portion 512 on the surface 2a side of the rectangular plate 2 is located closer to the second side wall 22 than the surface 2a of the rectangular plate 2. Specifically, the tip 512a of the second slit portion 512 is preferably located closer to the line segment passing through the first side 221 of the second side wall 22 than the line segment passing through the second side 202 of the rectangular plate 2. In this case, the pair of side wall portions (first side wall 21, second side wall 22) are bent, and wrinkles due to bending can be made less likely to occur in the abutting portion formed. Furthermore, in this case, the gap formed between the abutted portions of the adjacent side walls of the building board 1 can be made more difficult to expose on the front side of the wall surface. For this reason, when the outer wall is formed using the architectural board 1, the appearance can be made more difficult to spoil. It is more preferable that the tip 511a of the first slit portion 511 be located closer to the line segment passing through the first side 211 of the first side wall 21 than the line segment passing through the first bent piece 251 in the first bent portion 241. It is more preferable that the tip 512a of the second slit portion 512 be located closer to the line segment passing through the first side 221 of the second side wall 22 than the line segment passing through the second bending piece 252 in the second bending portion 242.

A core material 4 (described later) such as rock wool, glass wool, and foamed synthetic resin, and a reinforcing material 7 (described later) such as gypsum board or wood may be interposed on the back surface 2b side of the rectangular plate 2.

The construction board 1 according to the first embodiment can be manufactured by any appropriate method. Then, each part for forming each side wall part 20 and tongue piece 3 is formed by cutting or the like. Next, the corners 420 of the notch pieces 410 of adjacent side wall parts 20 are connected to each other (for example, the first corner 421 of the first cutout piece 411 and The side wall portion 20 is bent at the position shown by the dashed line in FIG. 8 so that the third corner 422) of the second notch piece 412 is close to each other. That is, the manufacturing method of the building board 1 of this embodiment includes forming the first side wall 21 and the second side wall 22 by bending the pair of side wall parts 20. The angle to be bent may be set as appropriate, and for example, the intersection between the surface 2a of the rectangular plate 2 and the side wall 20 does not necessarily have to be a right angle, but the angle between the surface 2a of the rectangular plate 2 and the side wall 20 is It is preferable that they be substantially orthogonal.

Subsequently, by bending the protruding tongue piece 3, it is accommodated in the space formed by the notch pieces 220 of the adjacent side wall parts 20. The angle at which the tongue piece 3 is bent may be set as appropriate.

It is also preferable that the architectural board 1 is produced, for example, as follows.

First, as shown in developed views in FIGS. 6A and 8, a metal plate is formed by cutting the parts for forming the rectangular plate 2, each side wall part 20, and the tongue piece 3. Prepare the parts. This plate-shaped member is bent so that either one of the adjacent side wall portions (the side wall portions serving as the first side wall 21 or the second side wall 22) 20 faces the back surface 2b side. At this time, as shown in FIG. 7A, the side wall portion 20 (the side wall portion 20 that becomes the first side wall 21 in FIG. 7A) is bent, and a part of the bent portion 35 of the tongue piece 3 is bent to the first bent piece 251 ( 6A and 6B) toward the back side 2b. Subsequently, one side wall portion 20 other than the side wall portion 20 bent above is bent toward the back surface 2b side. At this time, as shown in FIG. 7B, the side wall portion 20 (in FIG. 7B, the side wall portion 20 that becomes the second side wall 22) is bent, and a part of the bent portion 35 of the tongue piece 3 is bent into the second bent piece 252 ( 6A and 6B) toward the back side 2b. That is, the method for manufacturing the architectural board 1 preferably includes bending the pair of side wall portions 20 and further bending the tongue piece 3.

As a result, the first side wall 21, the second side wall 22, and the tongue piece 3 are formed. The third side wall 23, the fourth side wall 24, and the tongue piece 3 located between each side wall can also be formed in the same manner. When bending each side wall portion 20, it is preferable to perform the bending process along a portion of the side wall portion 20 on the back surface 2b side that will become a bent piece (first bent piece 251 when forming the first side wall 21). For bending, an appropriate machine such as a press brake can be used, but is not limited thereto.

Note that the combination of the side wall portions 20 to be bent and the order in which they are bent are not particularly limited. For example, among the four side wall portions 20, adjacent side walls (for example, the first side wall 21 and the second side wall 22, The building board 1 is produced by bending either the third side wall 23, the third side wall 23 and the fourth side wall 24, or the fourth side wall 24 and the first side wall 21), and then sequentially bending the adjacent side walls. It's okay. Further, the angle at which each side wall portion 20 is bent can be adjusted as appropriate.

In this way, in the method for manufacturing the building board 1 described above, the tongue piece in the building board 1 can be easily bent without directly bending the portion that will become the protruding tongue piece 3 located between the adjacent side walls 20. 3 can be formed. Therefore, in producing the architectural board 1, it is possible to omit some of the manufacturing steps. Moreover, in this manufacturing method as well, a building board 1 can be obtained in which the gap between the abutting portions of adjacent side walls is less likely to be exposed toward the front side. In this case as well, in the case where the outer wall is formed from the architectural board 1, the tip 511a of the first slit portion 511 is closer to the first side 211 of the first side wall 21 than the line passing through the first side 201 of the rectangular board 2. The tip 512a of the second slit portion 512 is located on the side of the line passing through the first side 221 of the second side wall 22 rather than the line passing through the second side 202 of the rectangular plate 2. can be located. Therefore, in the construction board 1, the pair of side wall portions (first side wall 21, second side wall 22) are bent, and wrinkles due to bending can be made less likely to occur in the abutting portion formed. Furthermore, in this case, the gap formed between the abutted portions of the adjacent side walls of the building board 1 can be made more difficult to expose on the front side of the wall surface. For this reason, when the outer wall is formed using the architectural board 1, the appearance can be made more difficult to spoil.

The rectangular plate 2 has a long side dimension L1 of approximately 400 mm or more and 6,000 mm or less, and a short side dimension L2 of approximately 200 mm or more and 1000 mm or less. However, it is not limited to these illustrative numerical values.

The rectangular plate 2 may be formed from a metal plate material or a steel plate, but is not limited thereto. When the rectangular plate 2 is formed from a metal plate, the thickness of the rectangular plate 2 is, for example, 0.8 mm or more and 2.0 mm or less. When the rectangular plate 2 is formed from a steel plate, the thickness of the rectangular plate is, for example, 0.8 mm or more and 1.6 mm. The thickness of the rectangular plate 2 is not limited to this, and may be set as appropriate. In this embodiment, even if the building board 1 is made from a relatively thick steel plate, for example, the building board 1 can make it difficult to expose the gap caused by the butted portion to the front side.

(Modification 1)
In the first embodiment described above, a substantially circular opening 50 is provided at the tip 410a of the cutout piece 410 (for example, the first cutout piece 411 and the second cutout piece 412) on the rectangular plate 2 side. is also preferably formed (see FIG. 9A). In this case, it is easy to process the rectangular plate 2 when folding the tongue piece 3 from the front surface 2a side of the rectangular plate 2 to the back surface 2b side. More specifically, approximately circular openings are provided at the tips (411a, 412a) of the cutout pieces 410 (for example, the first cutout piece 411 and the second cutout piece 412) on the side wall portion 20 side of the rectangular plate 2, etc. When the hole 50 is formed, the rectangular plate 2 and the vicinity of the opening 50 in the first bent part 241 and the second bent part 242 are bent when forming the first side wall 21 and the second side wall 22. The force applied to the side wall portion 20 can be dispersed. Thereby, in the outer wall formed from the building board 1, it is further difficult to expose the gap caused by the cut at the abutting portion to the front side of the outer wall. In particular, when the rectangular plate 2 is a steel plate, the above effect is remarkable. Furthermore, in this case, even when the tongue piece 3 is folded as described above, wrinkles due to the bending can be made less likely to occur on the front side of the architectural board 1.

When the tip 410a of the notch piece 410 of the construction board 1 has an opening 50, the position where the opening 50 is formed is the tip 410a of the notch piece 410 on the rectangular plate 2 side, as described above. . Since the first slit portion 511 is a gap between the first side end 33 of the tongue piece 3 on the side of the first cutout piece 411 and the first cutout piece 411, the opening 50 is For example, it can be said that it is a part of the first slit portion 511. As shown in FIG. 9A, it is preferable that the opening 50 is located closer to the back surface 2b (back side) than the front surface 2a. More specifically, the opening 50 is located closer to the first side of the first side wall 21 than the line passing through the first side 201 of the rectangular plate 2 with respect to each of the first bent part 241 and the second bent part 242. It is preferable to be located on the line segment side passing through 211. It is more preferable that the opening 50 be located on the line segment passing through the midpoint P11 (see FIG. 8) or on the side of the line passing through the first side 211 of the first side wall 21 rather than the line segment passing through the midpoint P11. . Further, the opening 50 may be located on the line segment passing through the midpoint P12 (see FIG. 8), or on the side of the line segment passing through the second side 221 of the second side wall 22, rather than the line segment passing through the midpoint P12. More preferred.

For example, each bent portion (for example, the first bent portion 241 and the second bent portion 242, etc.) is formed with a curved surface, and in this case as well, the opening 50 is formed on the first side 201 (or It is preferable to be located closer to the line segment passing through the first side 211 of the first side wall 21 (or the first side 221 of the second side wall) than the line segment passing through the second side 202). In this case, in the building board 1 of this embodiment, in the outer wall formed from the building board 1, it is difficult to expose the gap caused by the cut at the abutting portion to the front side of the outer wall. In particular, if the rectangular plate 2 in the architectural board 1 is a relatively thick metal plate, such as a steel plate, the curvature of the bent part 240 tends to be large, but the gap including the slit parts 511 and 512 is widened, and the slit part Since 511 and 512 are divided, it is difficult for a gap to occur in the abutted portions to the front side. Therefore, in the construction board 1 of this embodiment, even if the rectangular board 2 is a relatively thick metal plate, such as a steel plate, the gap created by the cut in the butt part is made more difficult to expose to the front side of the outer wall. Is possible.

Further, although the shape of the opening 50 is approximately circular in FIG. 9A, it is not particularly limited, and may be, for example, an elliptical shape or a polygonal shape.

(Modification 2)
In the first embodiment described above, the shape of the tongue piece 3 is such that, as shown in FIG. may have roundness. In this case, when constructing the building board 1 and forming an external wall from the building board 1, the gap formed at the butt part can be made more difficult to expose to the front side of the wall surface, and the wall surface The vicinity of the corner portion 30 can be made smoother. Therefore, if the outer wall is formed from the architectural board 1, the appearance can be further improved. Furthermore, the construction board 1 can be made less likely to damage other members during transportation or construction.

Moreover, as shown in FIG. 9B, it is also preferable that the first corner 421 and the second corner 331 of the first cutout piece 411 have roundness. In this case, even when an outer wall is formed from the architectural board 1, the gap formed at the abutting portion can be made more difficult to expose to the front side of the wall surface, and the vicinity of the corner portion 30 of the wall surface can be made smoother. Therefore, if the outer wall is formed from the architectural board 1, the appearance can be further improved. Furthermore, the construction board 1 can be made more difficult to damage other members during transportation and construction. It is also preferable that the third corner 422 and the fourth corner 432 of the second notch piece 412 are rounded. Note that in FIG. 9B, the first corner 421, the second corner 431, the third corner 422, and the fourth corner 432 are all rounded, but the first corner 421, the second corner 431, the third corner 422, and the fourth corner 432.

2.2. Second Embodiment A construction board 1 according to a second embodiment will be described with reference to FIGS. 10A to 11B.

The building board 1 of the second embodiment has a flange portion 260 (e.g. In FIG. 10A, it has a flange portion 262, etc.).

Hereinafter, a construction board 1 according to the second embodiment will be described, but the same components as those in the first embodiment will be denoted by the same reference numerals, and redundant explanation will be omitted.

The flange portion 260 in the side wall portion 20 may be formed on any side wall. For example, as shown in FIG. 10A, a second flange portion 262 may be formed on the second side wall 22. Note that a first flange portion (not shown) may be formed on the first side wall 21.

The first flange portion 261 extends, for example, from one end of the first side wall 21 to the other end of the first side wall 21 protruding from the rectangular plate 2 toward the outside with respect to the rectangular plate 2. It is formed by bending it and making it protrude further. The first flange portion 261 is bent, for example, substantially perpendicularly to the surface 21a of the first side wall 21. Note that the first flange portion 261 may be formed by bending the rectangular plate 2 inward.

Similarly to the first flange portion 262, the second flange portion 262, for example, connects the tip portion of the second side wall 22 protruding from the rectangular plate 2 from one end of both side ends of the second side wall 22 to the other end. It is formed by bending the rectangular plate 2 outward and further protruding. The second flange portion 262 is bent, for example, substantially perpendicularly to the surface 22a of the second side wall 22. Note that the second flange portion 262 may be formed by bending the rectangular plate 2 inward.

The dimensions of the first flange portion 261 and the second flange portion 262 that protrude outward from the rectangular plate 2 are not particularly limited, but may be adjusted as appropriate depending on, for example, the distance between the wall surfaces on which they are installed. Bye. The shapes of the first flange portion and the second flange portion 262 are not particularly limited, and may be rectangular, for example.

Further, in the third side wall 23 and the fourth side wall 24 as well, each flange portion may be formed by bending the protruding tip of each side wall portion 20. For example, as shown in FIG. 10B, the flange portion 264 of the fourth side wall 24 is formed to protrude outward with respect to the rectangular plate 2, similarly to the flange portion 262 of the second side wall 22. Further, the flange portion (not shown) of the third side wall 23 may be formed to protrude inwardly or outwardly with respect to the rectangular plate 2, similarly to the flange portion of the first side wall 21. Note that the direction in which each flange portion 260 projects is not particularly limited.

The construction board 1 according to the second embodiment may be manufactured by any appropriate method. For example, the flange portion 260 can be formed on the side wall portion 20 by bending the tip of at least one side wall portion 20 of the side wall portions 20 of the construction board 1 manufactured by the method described in the first embodiment. . Thereby, the building board 1 according to the second embodiment is obtained. In addition, the bending process for forming the flange part 260 may be performed before bending the tongue piece 3, or may be performed before the bending process for forming the side wall part 20.

Moreover, the tongue piece 3 in the construction board 1 according to the second embodiment may be formed by the preferable manufacturing method described in the first embodiment. That is, one of the adjacent side wall portions 20 of the metal plate-shaped member is bent toward the back surface 2b, and then one side wall portion other than the side wall portion 20 bent above is bent. 20 may be produced by bending it toward the back surface 2b side. In this case, the tongue piece 3 of the building board 1 can be formed without directly bending the portion that will become the protruding tongue piece 3 located between the adjacent side walls 20. Therefore, in producing the architectural board 1, it is possible to omit some of the manufacturing steps. Moreover, in this manufacturing method as well, a building board 1 is obtained in which the gap between the abutting portions of adjacent side walls is hardly exposed to the front side. Note that the method for forming the flange portion 260 may be the same as described above.

2.3. Third Embodiment A construction panel 10 according to a third embodiment will be described with reference to FIGS. 12A, 12B, and 13.

The architectural panel 10 of the third embodiment includes the above-described architectural board 1 as at least one of the outer skin material and the inner skin material. That is, the panel 10 according to this embodiment includes the construction board 1 of the first embodiment or the second embodiment. Hereinafter, the same reference numerals will be given to the configurations described in the construction board 1 of the first and second embodiments, and overlapping explanations will be omitted as appropriate. Further, in the following description, a case where the outer skin material is the building board 1 will be described, but the present invention is not limited to this.

The architectural panel 10 includes a core material 4 and a pair of outer skin material 5 and inner skin material 6 that face each other with the core material 4 in between. The outer skin material 5 includes the construction board 1.

The architectural panel 10 is constructed by interposing a core material 4 and a reinforcing material 7 between an outer skin material 5 and an inner skin material 6, as shown in FIG. 12A, for example. The skin material 5 is a surface plate that forms the exterior surface (one surface) of the architectural panel 10. The inner skin material 6 is a surface plate that forms the interior surface (the other surface) of the architectural panel 10. The core material 4 is, for example, rock wool, glass wool, foamed synthetic resin, or the like. The reinforcing material 7 is, for example, gypsum board or wood.

Hereinafter, the core material 4 and the reinforcing material 7 will be referred to as the inside of the architectural panel 10, the surfaces that will become either the exterior surface or the interior surface of the outer skin material 5 will be referred to as surfaces 5a and 6a, respectively, and the surfaces 5a and 6a of the outer skin material 5 will be referred to as surfaces 5a and 6a. The opposite surfaces, which face the inside of the core material 4, etc., are referred to as back surfaces 5b and 6b, respectively.

The outer skin material 5 includes the building board 1 as already explained. That is, the outer skin material 5 is located between the rectangular plate 2, a pair of side walls 21, 22 that protrude from the two adjacent sides 201, 202 of the rectangular plate 2 toward the back surface 2b, and a pair of side walls 21, 22, A tongue piece 3 protrudes from a corner part 30 of the rectangular plate 2 toward the back surface 2b side. In this embodiment, in the construction board 1 of the outer skin material 5, the flange portion 260 is not formed on the first side wall 21 and the third side wall 23 facing the first side wall 21. On the other hand, in the construction board 1 of the outer skin material 5, the second side wall 22 and the fourth side wall 24 opposite to the second side wall 22 each have a flange portion 260 that projects outward with respect to the rectangular board 2. It is formed. However, the present invention is not limited to this embodiment, and the construction board 1 in the outer skin material 5 may not have the flange portion 260 or may have at least one flange portion 260.

The inner skin material 6 may be any suitable plate material, and may be, for example, a plate material obtained by bending the peripheral edge of a rectangular plate material in plan view. Specifically, as shown in FIGS. 12B and 13, the inner skin 6 has a bent piece 61 formed by bending the long side of a long plate having long sides and short sides, and a short side. It may also have a protruding strip 62 formed by folding inward so that the side has a protruding part. The bent piece 61 can be formed, for example, by bending the long side approximately at right angles to the plate material to an appropriate dimension. Further, the convex strip 62 may be formed by, for example, bending the tip of the short side approximately at right angles to an appropriate dimension, then further bending the tip so that it faces the side with the long side, and then returning the tip to the original plate material. It can be formed by folding back substantially perpendicular to the surface of the. Note that the form of the inner skin material 6 is not limited to the above, and for example, the dimensions of the long side and the short side may be the same length or may be different lengths. Further, the bent pieces 61 may be formed on both the long sides and the short sides, or the protruding strips 62 may be formed on both the long sides and the short sides. Alternatively, the protruding strips 62 may be formed on the long sides, and the bent pieces 61 may be formed on the short sides. Further, the bent piece 61 and the protruding portion 62 can be formed by any appropriate method. Furthermore, although the case where the inner skin material 6 has the bent piece 61 and the protruding strip part 62 has been described above, the present invention is not limited to this, and may be formed by an appropriate process.

The architectural panel 10 is formed by interposing the core material 4 between the architectural board 1 and the inner skin material 6 of the outer skin material 5 described above, as shown in FIGS. 12A, 12B, and 13. can.

Note that the dimensions and angles of each part in each of the embodiments described above are merely examples of preferred values, and the dimensions and angles of each part may vary depending on the dimensions and application of the sandwich panel, the performance of the manufacturing equipment, the route, etc. It may be set as appropriate, and is not limited to the illustrated numerical values.

1 Architectural board 2 Rectangular board 2a Front surface of rectangular board 2b Back surface 20 Side wall portions 201, 201 Two adjacent sides 21 First side wall 22 Second side wall 241 First bent portion 242 Second bent portion 3 Tongue piece 30 Corner portion 31 ( Tip (of the tongue piece) 33, 34 Side end (of the tongue piece) 411 First cutout piece 412 Second cutout piece 10 Architectural panel 4 Core material 5 Outer skin material 6 Inner skin material

Claims (3)

a rectangular plate,
a pair of side walls protruding from two adjacent sides of the rectangular plate toward the back side;
a tongue piece located between the pair of side wall parts and protruding from the corner part of the rectangular plate to the back surface side,
The protruding length of the pair of side wall portions is longer than the protruding length of the tongue piece,
the tip of the tongue piece and the pair of side walls intersect ,
A first cutout piece is formed in a first sidewall of the pair of sidewall portions,
A second notch piece is formed in the second side wall of the pair of side wall parts,
The first cutout piece and the second cutout piece are spaced apart from each other,
Each side end of the tongue piece is located between the first cutout piece and the second cutout piece,
a first slit portion between the first cutout piece and a first side end of the tongue piece, and a second slit between the second cutout piece and a second side end of the tongue piece; has a department;
The tip of the first slit portion on the surface side of the rectangular plate is located closer to the first side wall than the surface of the rectangular plate,
The tip of the second slit portion on the surface side of the rectangular plate is located closer to the first side wall than the surface of the rectangular plate.
Architectural board. a first bending portion that is bent from the front side to the back side of the rectangular plate between the rectangular plate and the first side wall, and between the rectangular plate and the second side wall, the rectangular plate has a second bent part bent from the front side to the back side,
The first bent portion and the second bent portion are continuous at the corner portion of the rectangular plate.
Architectural board according to claim 1. comprising a core material, and an outer skin material and an inner skin material facing each other via the core material,
The outer skin material includes the architectural board according to claim 1 or 2.
Architectural panels.

Images