Substrate material for construction

Abstract

To provide a substrate material for construction that is versatile, is easy to construct, and can be used without waste.SOLUTION: Provided is a long substrate material U for construction with an opened cross section formed by bending a metal sheet, comprising: a mountain portion 10 configured to form a right-angled trapezoidal-shaped space portion in an orientation in which a sloping surface that becomes wider is located on the center in a cross section in a short direction; and a valley portion 20 configured to form a right-angled trapezoidal-shaped space portion that is the same shape as the right-angled trapezoidal-shaped space portion in the mountain portion 10 and whose orientation is rotated 180 degrees. Lip portions 11, 21 toward the center are extended at each end of the right-angled legs 10b, 20b of the mountain portion 10 and the valley portion 20.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a building base material.

Background Art

[0002] Conventionally, as a base material for roofs, a board or a synthetic resin ridge board has been used, and the board or the like has been fixed to the roof board and the purlin using nails or bolts. On the other hand, in consideration of corrosion of wood and mass productivity, etc., it is made of a bent single metal plate or a surface-treated steel plate with various metal plating or painting, and has ridge portions with a trapezoidal cross section on at least both sides, and the valley portion formed in the middle of the ridge portion has an inverted trapezoidal cross section, and a building base metal fitting is proposed in which a screw groove is formed substantially at the center of the valley portion (Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, the above building base metal fitting has a wide width and a high height dimension, and when the ridge covering attached to the upper part has a steep gradient, the building base metal fittings attached opposite to each other interfere with each other, so there is a problem that it becomes difficult to install. In addition, the above building base metal fitting does not have the same cross section when rotated 180 degrees, so there is a problem that the material may be wasted depending on the mounting direction.

[0005] The present invention has been made to solve the above problems, and an object of the present invention is to provide a building base material that has high versatility, excellent workability, and can be used without waste.

Means for Solving the Problems

[0006] In order to achieve the above object, the building base material of the present invention (hereinafter sometimes referred to as "the present building base material") is a long building base material having an open cross-section formed by bending a metal plate. In the cross-section in the short side direction, a mountain portion is configured such that a space portion having a right trapezoidal shape in which an inclined surface (inclined portion) that becomes wider toward the center side is located is formed. The valley portion has the same shape as the space portion having the right trapezoidal shape of the mountain portion and is configured such that a space portion having a right trapezoidal shape with its direction rotated 180 degrees is formed. The building base material is characterized in that lip portions (protruding pieces having a predetermined width) extending toward the center side are provided at the tip ends of the legs in the right angle direction of the mountain portion and the valley portion.

[0007] The present building base material is particularly suitable as a building base for a building (the base material for a roofing material), but may also be used as a building base material for other parts such as a wall surface.

[0008] Further, it is necessary that the cross-sectional shape of the present building base material in the short side direction (the direction perpendicular to the long side direction) is the same shape when the mountain portion and the valley portion are rotated 180 degrees in their directions (a point-symmetric [left-right symmetric] relationship). However, there are no restrictions on the length, the shape and dimensions of the right trapezoid, the dimensions of the lip portion, and other forms (in the following description, when referring to the same shape, it shall include the case where the direction is rotated 180 degrees). Further, the present building base material is formed by bending a metal plate, and its material is preferably a metal of an aluminum-zinc alloy plated steel sheet from the viewpoint of resistance and the like, but there are no restrictions such as stainless steel or synthetic resin.

[0009] According to this building base material, in the cross-section in the short side direction, a ridge portion is formed with a trapezoidal space portion whose inclined surface is located in a direction that widens toward the center side, and the trapezoidal space portion of the ridge portion has the same shape, and is formed by two valley portions in which a trapezoidal space portion with its direction rotated 180 degrees is formed. Therefore, the width dimension and height dimension can be made compact, and interference of the fixture can be prevented, so that it is possible to perform attachment regardless of the gradient of the finishing material. Further, in the ridge portion, it can be attached to a roofing material such as a ridge covering, and in the valley portion, it can be attached to the top side of a building structural material (hereinafter referred to as "structural material"), so that it can be firmly attached and has a structure excellent in workability and constructability.

[0010] In addition, since this building base material can have the same shape even when its direction is rotated 180 degrees, it can be used without waste.

[0011] In addition, this building base material has a lip portion with a predetermined width and is attached to the structural material via the upper lip portion, so that it is possible to prevent the structural material from being dented due to stress concentration in the attachment portion. Further, when a waterproof material is laid on the lower surface of this building base material, etc., the waterproof material can be pressed via the lower lip portion, so that the waterproof material can be installed well.

Effect of the Invention

[0012] According to the present invention, it is possible to provide a building base material with high versatility, excellent workability, and the ability to be used without waste.

Brief Description of the Drawings

[0013]

Figure 1

Figure 2

Figure 3

Embodiments for Carrying Out the Invention

[0014] Hereinafter, with reference to the drawings, an embodiment of the present building base material U will be described in detail. In the description of the drawings, the same reference numerals are given to the same elements, and duplicate descriptions are omitted.

[0015] (1) Configuration of the present building base material As shown in FIG. 1, the present building base material U is formed in a long shape by bending a single metal plate, and based on an N-shaped (FIG. 2) (N-shaped in a rear view) that is reversed left and right, a horizontal portion is provided on the left upper end portion and the right lower end portion toward the center (intermediate portion) side to form a basic shape.

[0016] That is, the present building base material U is bent so that a trapezoidal space portion in which an inclined surface 30 that widens toward the center is located is formed in a cross section in the short side direction, and a mountain portion 10, and a valley portion 20 that has the same shape as the trapezoidal space portion of the mountain portion 10 and is bent so that a trapezoidal space portion with its orientation rotated 180 degrees is formed, resulting in an open cross section. And the mountain portion 10 and the valley portion 20 are formed so as to have the same shape when their orientations are rotated 180 degrees (so as to have the same shape when reversed left and right). Incidentally, the mountain portion 10 and the valley portion 20 are distinguished (differentiated) at the intermediate portion of the inclined surface 30 formed in the center for convenience.

[0017] Also, at the lower end portion (tip portion) of the vertical direction (right angle direction) leg 10b of the mountain portion 10 and the upper end portion (tip portion) of the vertical direction (right angle direction) leg 20b of the upper end portion of the valley portion 20, lip portions 11 and 21 with a predetermined width are respectively extended in a direction orthogonal (at a 90-degree angle) toward the center side.

[0018] (2) Usage mode of the present building base material Referring to FIG. 3, the case where the base material U for this building is used as a part of the roofing material will be described. The pair of base materials U for this building are arranged such that the valley portion 20 is located on the top side and the ridge portion 10 is located obliquely downward so as to be symmetric about the left and right. A waterproof material 7 is interposed between each base material U for this building and the structural material 6. Then, with the waterproof material 7 being pressed by the lip portion 11 of the ridge portion 10 and the lower surface 20a of the valley portion 20, the base material U for this building is attached to the structural material 6 by a fixture 41 attached to the lower surface 20a of the valley portion 20.

[0019] In addition, the pair of base metal fittings U for the building are covered with a ridge covering 5 which is a roofing material formed in a substantially umbrella shape. The ridge covering 5 is supported by the upper surface 10a of the base material U for this building and the lip portion 21 of the valley portion 20, and is fixed by a plurality of screws 42 at the portions of the vertical legs 10b of the ridge portion 10 in the base material U for this building where the vicinity of both ends of the ridge covering 5 is provided on the inner side.

[0020] (3) Function and effect of the base material for this building The base material U for this building has lip portions 11 and 21 having a predetermined width, and since it is attached to the ridge covering 5 via the lip portion 11 of the ridge portion 10, it is possible to effectively prevent the ridge covering 5 from being dented due to stress concentration at the attachment portion, etc. In addition, a waterproof material 7 is laid on the lower surface of the base material U for this building, and since the waterproof material 7 can be pressed through the lip portion 21 of the valley portion 20, the waterproof material 7 can be installed well.

[0021] In addition, according to the base material U for this building, in the cross section in the short side direction, a mountain portion 10 in which a space portion having a right trapezoidal shape with an inclined surface 30 located in a direction of becoming wider toward the center side is formed, and only two portions of the valley portion 20 having the same shape as the mountain portion 10 are formed. Therefore, the width dimension and the height dimension can be made compact, and it can be easily processed during manufacturing. Furthermore, interference of the fixture 41 can be prevented, and attachment can be performed regardless of the gradient of the structural material 6.

[0022] In addition, since it can be attached to the building wrap 5 in the ridge portion 10 and can be attached to the top side of the structural material 6 in the valley portion 20, it can be firmly attached. Furthermore, since it does not have a complicated shape, it is possible to achieve a structure with excellent workability, such as labor-saving cutting work at the construction site. Moreover, since the building base material U can have the same shape even when its orientation is rotated by 180 degrees, it can be used without waste.

[0023] In addition, both the ridge portion 10 and the valley portion 20 of the building base material U are right trapezoids with the same shape, and an inclined surface 30 is formed at their boundary. Therefore, dew condensation, rainwater, etc. can be drained well through the inclined surface 30.

[0024] As described above, an example of a preferred embodiment of the present invention has been explained. However, the present invention is not limited to the above embodiment, and design changes can be made as appropriate without departing from the spirit of the present invention. In addition, the present invention illustrates the minimum necessary components, and other necessary components may be added as long as the effects thereof are not inhibited. Furthermore, the aspects of the ridge portion, valley portion, and lip portion described in the claims have a basic configuration and can be appropriately designed as long as they exhibit the effects thereof.

Explanation of Reference Numerals

[0025] U Building base material 5 Building wrap 6 Structural material 7 Waterproof material 10 Ridge portion 11 Lip portion 20 Valley portion 21 Lip portion 30 Inclined surface

Claims

【Claim 1】 In a long building base material having an open cross-section formed by bending a metal plate, a ridge portion configured such that a trapezoidal space portion with an inclined surface that is wider on the central side is formed in a direction perpendicular to the cross-section in the short side direction, a valley portion configured such that a trapezoidal space portion having the same shape as the trapezoidal space portion of the ridge portion and rotated 180 degrees in its orientation is formed, and a lip portion extending toward the central side is provided at each tip of the legs in the perpendicular direction of the ridge portion and the valley portion. A building base material characterized by the above.

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