Architectural exterior structure

Abstract

To easily achieve a shape that prevents rainwater from seeping into the connection points between adjacent vertical roofing cladding materials, this invention provides an exterior building structure that reduces the amount of material used by simplifying the shape, and also aims to simplify the molding machine. [Solution] The building exterior structure of the present invention is characterized in that vertical roofing exterior material 1 having molded parts 12, 12 on the left and right sides is laid between retaining members 2, 2 installed on a base 4, the retaining member 2 is provided with a tower-shaped part 21 in the center and upward-facing upright parts 22, 22 on the left and right sides thereof, the molded part 12 of the vertical roofing exterior material 1 is provided with an inner rising part 12B on the left and right side edges of a flat face plate part 11 and an outer rising part 12A on the outside thereof, the inner rising part 12B is held in a fitted manner by the upright part 22 of the retaining member 2 and the outer rising part 12A is held in a fitted manner by the tower-shaped part 21, and the vertical roofing exterior material 1 is characterized in that it is formed only of a continuous curved molded surface, or of a curved molded surface and a flat surface.

Description

Technical Field

[0001] The present invention relates to an exterior structure for buildings, which can simply achieve a shape in which rainwater does not penetrate into the connection part between adjacent vertically laid exterior materials, reduce the materials used by adopting a simple shape, and can simplify the molding machine due to the simple shape.

Background Art

[0002] There are various methods for vertically laid roofs in which mountain-shaped parts and valley-shaped parts are alternately continuous in the flow direction. When constructing a roof, etc., a vertically laid roof material is attached between holding members fixed to the base, and its upper end is caulked or a cap material is attached, etc.

[0003] As a problem in such a vertically laid roof, there was a risk that rainwater was blown onto and penetrated into the connection part between the vertically laid roof materials. Therefore, in order to prevent the intrusion of rainwater, etc. from the connection part, for example, measures such as complicating the rising forming part (vertical ridge) of the vertically laid roof material, or setting the connection part at a high position, or arranging a waterproof material, etc. in the vertical ridge have been taken, but various concerns have arisen, such as increased molding costs, increased and rising use materials, performance degradation due to negative pressure, etc., and aging deterioration. Alternatively, in order to prevent the intrusion of rainwater itself, as in Patent Document 1, a structure has been adopted in which the forming part of the vertically laid roof material is formed into a shape including a bent part, and the drain groove is covered with a cap material (cover material). In particular, in this structure, a cap material having an umbrella-shaped covering part that protrudes greatly to the left and right outside is used. Note that roll forming used for molding is a method in which a plurality of rolls are combined in multiple stages (in combination of upper and lower "steps") to continuously mold a steel plate, a metal plate material, etc.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

[0005] However, in recent years, the cost of various materials such as steel plates and metal sheets has soared, leading to increased raw material prices. This has resulted in higher costs for vertical roofing materials and the molding machines used to form them, ultimately leading to higher product prices and higher construction costs. Furthermore, the roof structure described in Patent Document 1 requires the use of a specially shaped cap material as described above, which further increases the burden of rising material costs. On the other hand, when rainfall is accompanied by strong winds, rainwater is strongly pressed against the connection points, especially the bent areas, making it easy for rainwater to penetrate and for the components to detach. The above-mentioned "bent area" refers to a point where a metal plate to be bent is bent at an obtuse or acute angle while maintaining two sides of the plate flat.

[0006] Therefore, the present invention aims to propose an exterior building structure that can easily achieve a shape that prevents rainwater from penetrating the connection between adjacent vertical roofing exterior materials, by reducing the amount of material used through a simple shape, and also by simplifying the molding machine due to the simple shape. [Means for solving the problem]

[0007] The present invention has been proposed in view of the above, and relates to an exterior building structure in which vertical roofing exterior material having molded parts on the left and right sides is laid between retaining members installed on a substrate, wherein the retaining member is provided with a tower-shaped part in the center and upward-facing upright parts on the left and right sides thereof, the molded part of the vertical roofing exterior material is provided with inner upright parts on the left and right side edges of a flat surface plate and outer upright parts on the outside thereof, the inner upright parts are held in a fitted manner by the upright parts of the retaining member and the outer upright parts are held in a fitted manner by the tower-shaped part, and the vertical roofing exterior material is formed only of a continuous curved molded surface, or of a curved molded surface and a flat surface.

[0008] Furthermore, the present invention proposes an exterior building structure characterized in that the tower-shaped portion has upper fitting portions formed on its left and right sides, and the upper holding portion formed at the upper end of the outer rising portion is held in an engaged manner. [Effects of the Invention]

[0009] The building exterior structure of the present invention is formed of vertical roofing material consisting only of continuous curved molded surfaces, or curved molded surfaces and flat surfaces, that is, it does not include any bends. Therefore, the molding machine only needs to be set to curve molding, and thus it can be assembled into an easy and simple structure. The above-mentioned "bend" refers to a place where the metal plate to be bent is bent at an obtuse or acute angle while maintaining two sides of the plate flat, as described above. Furthermore, it is possible to easily create a shape that prevents rainwater from seeping into the connection points between adjacent vertical roofing panels, reduce the amount of material used by creating a simple and smooth shape, guide rainwater away from the connection points, and also simplify the molding machine due to the simple shape.

[0010] Furthermore, when the tower-shaped portion has upper fitting portions formed on its left and right sides, and the upper holding portion formed at the upper end of the outer rising portion is held in an engaged manner, the vertical roofing exterior material can be stably attached to the holding member. [Brief explanation of the drawing]

[0011] [Figure 1] (a) A longitudinal cross-sectional view showing the building exterior structure of Embodiment 1 of the present invention, and (b) an enlarged longitudinal cross-sectional view showing the flow of rainwater at the connection portion thereof. [Figure 2] (a) A magnified vertical cross-sectional view of the vertical roofing material used in the building exterior structure of Example 1, (b) A magnified vertical cross-sectional view of the cover material used, and (c) A magnified vertical cross-sectional view of the retaining member used. [Best Mode for Carrying Out the Invention]

[0012] The building exterior structure of the present invention is a building exterior structure in which vertical roofing exterior material having molded parts on the left and right sides is laid between retaining members installed on a substrate, wherein the retaining member is provided with a tower-shaped part in the center and upward-facing upright parts on the left and right sides thereof, the molded part of the vertical roofing exterior material is provided with inner rising parts on the left and right side edges of a flat surface plate and outer rising parts on the outside thereof, the inner rising parts are held in a fitted manner by the upright parts of the retaining member and the outer rising parts are held in a fitted manner by the tower-shaped part, and the vertical roofing exterior material is formed only of a continuous curved molded surface, or of a curved molded surface and a flat surface.

[0013] The retaining member used in this invention is a member commonly referred to as a hanger, used to attach vertical roofing cladding to a substrate, and has a configuration in which a tower-shaped part is provided in the center and upward-facing upright parts on the left and right sides thereof. Although a fixing part to the substrate is formed in this retaining member, the position of the formation of this fixing part is not particularly limited. Preferably, the retaining member is made of an extruded aluminum material, a roll-formed material such as a steel plate, or a hard resin molded material. Since it is installed so as to extend in the direction of flow, it may be molded to be long in the direction of flow, or it may be made as a fixed-length material of a predetermined length and multiple pieces may be fixed along the direction of flow.

[0014] The aforementioned tower-like section is formed to extend in the height direction from the center of the base section, which is arranged along the ground surface, and the molded parts of the vertical roofing exterior material are attached to its left and right sides. As for this tower-like section, for example, by forming it in a roughly T-shape as shown in the illustrated embodiment described later, spaces are created on the left and right below the top piece where the molded parts for the vertical roofing cladding material are arranged, and the left and right vertical roofing cladding materials can be stably arranged in these spaces.

[0015] The aforementioned upright portions are formed on the left and right sides of the tower-like portion, extending upward from the bottom surface, and are the parts that hold the inner upright portion of the vertical roofing cladding in a fitted manner. This upright portion is shaped to match the shape of the inner upright portion of the vertically laid exterior cladding.

[0016] The vertically laid exterior finishing material used in the present invention is a member having molding parts on the left and right. The molding parts are provided with inner rising parts on the left and right side edges of the flat panel part as described above, and outer rising parts on the outside thereof. As this vertically laid exterior finishing material, various metal plate materials including steel plates capable of roll forming are used.

[0017] The inner rising part is a part where the rising part of the holding member is fitted and attached, and the outer rising part is a part where it is fitted and attached to the tower-shaped part. The inner rising part is formed in a substantially mountain shape with the lower part open with respect to the upwardly formed rising part. The outer rising part is formed into a shape corresponding to the shape of the tower-shaped part of the holding member, and is formed into a shape that is fitted and disposed laterally in the space formed on the left and right below the top piece with respect to the tower-shaped part formed in a substantially T shape.

[0018] And this vertically laid exterior finishing material is formed only with continuous curved molding surfaces, or with curved molding surfaces and flat surfaces, that is, it does not include any bending portions at all. Roll forming can form continuous curved molding surfaces at predetermined locations of various metal plate materials including continuous steel plates by combining a plurality of rolls called "frames" in multiple stages.

[0019] Note that the illustrated embodiment described later has a structure in which a cover material is attached so as to straddle adjacent vertically laid exterior finishing materials, but the present invention is not limited to this and can be applied to various vertically laid roofs. This cover material can be formed of the same material as the vertically laid exterior finishing material, includes a covering part that covers between the outer rising parts of the vertically laid exterior finishing material, and includes a fitting part that is fitted into a space (fitted part) provided in the tower-shaped part. And, similar to the vertically laid exterior finishing material, it is preferably formed by roll forming only with continuous curved molding surfaces, or with curved molding surfaces and flat surfaces.

[0020] Note that the base for fixing the holding member can use all building structures such as wooden structures, steel frame structures, and concrete structures to which fixtures such as nails, screws, and anchors can be attached. In the illustrated embodiment described later, wood wool cement boards and the like are used.

[0021] In the building exterior structure of the present invention having such a configuration, the vertical roofing exterior material is formed only of continuous curved molded surfaces, or of curved molded surfaces and flat surfaces, that is, it does not include any bends at all. Therefore, the molding machine only needs to be set to curved molding, and thus it can be assembled into an easy and simple structure. Furthermore, it is possible to easily create a shape that prevents rainwater from seeping into the connection points between adjacent vertical roofing materials, reduce the amount of material used by creating a simple and smooth shape, guide the flow of rainwater away from the connection points, and also simplify the molding machine due to the simple shape. Furthermore, the "connection points" where rainwater intrusion is expected refer to the connection (joining) points between vertical roofing cladding materials when no cover material is used, but when a cover material is used for connection as shown in the illustrated example described later, it refers to the connection (joining) point between the tip of the vertical roofing cladding material and the cover material.

[0022] Furthermore, if the tower-shaped section has upper fitting sections formed on its left and right sides, and the upper holding section formed at the upper end of the outer rising section is held in an engaged manner, the vertical roofing exterior material can be stably attached to the holding member. [Examples]

[0023] The building exterior structure of Embodiment 1 of the present invention shown in Figure 1(a) consists of vertical roofing exterior material 1 having molded parts 12, 12 on the left and right sides, laid between retaining members 2, 2 installed on a substrate 4, and this vertical roofing exterior material 1 is formed with a continuous curved molded surface and a flat surface.

[0024] As shown in Figure 2(c), the holding member 2 is an extruded aluminum material with a tower-shaped section 21 in the center and upward-facing, flat-shaped upright sections 22, 22 on its left and right sides. It is made as a fixed-length material and multiple members are fixed in place along the flow direction, that is, continuously from the front to the back of the drawing. In this embodiment 1, the holding member 2 has a tower-shaped portion 21 formed in the center of a flat bottom portion 23 so as to extend in the height direction, and upward-facing, flat upright portions 22, 22 formed on the left and right sides thereof.

[0025] The tower-shaped portion 21 is the part to which the molded portions 12, 12 of the vertical roofing exterior materials 1, 1 are attached on its left and right sides. In this embodiment 1, it is formed in a substantially T-shape with a horizontal top piece 211 at its upper end, and spaces 24, 24 are formed below the top piece 211 on the left and right sides, where the molded portions 12, 12 (outer rising portions 12A, 12A) of the vertical roofing exterior materials 1, 1 are arranged. In this embodiment 1, the tower-shaped portion 21 is formed intermittently, meaning there are multiple locations where the tower-shaped portion 21 is not formed, and these locations where it is not formed serve as fixing portions (holes 230 into which the fixing device 2b is driven).

[0026] The upright portion 22 is formed on the left and right sides of the tower-shaped portion 21 in an upward-facing, flat shape from the bottom portion 23, and is the portion into which the inner rising portion 12B of the vertical roofing exterior material 1 is held in a fitted manner. This upright portion 22 is shaped into a gentle, mountain-like form.

[0027] As shown in Figure 2(a), the aforementioned vertical roofing exterior material 1 has a substantially flat surface panel 11 in the center, and molded sections 12, 12 on its left and right sides. The molded portion 12 is provided with inner rising portions 12B on the left and right side edges of the faceplate portion 11, and outer rising portions 12A on the outside thereof. A drainage groove 12C is formed between these 12A and 12B, and the inner rising portions 12B are held in a fitted manner by the upright portion 22, and the outer rising portions 12A are held in a fitted manner by the tower-shaped portion 21.

[0028] Furthermore, this vertical roofing exterior material 1 is formed such that, when laid, an elastic resistance force acts outward on the outer rising portions 12A, 12A of the molded portions 12, 12. The aforementioned inner rising portion 12B consists of an inner portion formed by raising the side edge of the faceplate portion 11 upwards and an outer portion formed by folding its upper end downwards. Furthermore, the bottom of the drainage channel 12C is formed at a lower position than the faceplate portion 11.

[0029] As described above, this vertical roofing exterior material 1 is formed with continuous curved and flat surfaces. Specifically, the panel portion 11 is formed with a flat surface, and the portion shown in the right-hand molded section 12 in the figure is continuously curved by roll molding using a combination of upper and lower "spools". This vertical roofing exterior material 1 is formed from known metal materials such as surface-decorated steel sheets, laminated steel sheets, plated steel sheets, stainless steel sheets, aluminum alloy sheets, titanium alloy sheets, copper sheets, brass sheets, and lead sheets. The thickness of the material is not particularly limited, but is generally around 0.4 to 1.6 mm.

[0030] In this embodiment 1, the cover material 3 is laid in a fitted manner so as to straddle the vertical roofing exterior materials 1,1 attached to the left and right sides of the retaining member 2 installed on the base 4. This cover material 3 is a long material that extends continuously from the upstream side to the downstream side, similar to the vertical roofing exterior material 1, and has a covering portion 31 that covers the space between the outer rising portions 12A, 12A of adjacent vertical roofing exterior material 1, 1. An engaging portion 32 that curves inward is formed at the lower end of the covering portion 31, and a leg piece 33 that extends slightly outward from the lower end is formed thereon. Furthermore, since this cover material 3 is also formed with a continuous curved molded surface, it is curved by roll molding, similar to the molded portion 12 of the vertical roofing exterior material 1. Furthermore, when the cover material 3 is laid, it is formed such that an elastic resistance force acts inward on the covering portion 31 and the engaging portion 32. Furthermore, the base 4 in this embodiment 1 is a wood wool cement board 4A with a water-repellent sheet material 4B attached to its surface, and a frame 5 with steel members arranged horizontally is formed on the back surface of this base 4.

[0031] The procedure for constructing the building exterior structure composed of these components is not particularly limited. For example, the retaining members 2 of the above configuration are attached in advance to predetermined positions on the substrate 4, and the vertical roofing exterior material 1 of the above configuration is laid in a fitted manner between adjacent retaining members 2,2 in the horizontal direction. After that, the cover material 3 of the above configuration is attached from above in a fitted manner so as to straddle the adjacent vertical roofing exterior material 1,1.

[0032] For the installation of the vertical roofing cladding 1, the molded parts 12, 12 of the vertical roofing cladding 1 are fitted into the tower-shaped part 21 and the upright parts 22, 22 of the retaining member 2 by adjusting the mounting angle. At that time, there is almost no need for particularly troublesome adjustment operations; the mounting angle is adjusted and the cladding is fitted simply by positioning it by dropping it from above. More specifically, the face panel portion 11 of the vertical roofing exterior material 1 is placed along the space between adjacent retaining members 2, 2 fixed to the base 4, and the inner rising portion 12B is fitted to the upright portion 22, while the drainage groove 12C and the outer rising portion 12A are fitted between the upright portion 22 and the tower-shaped portion 21. In this case, as described above, the outer rising portion 12A is formed so that an elastic resistance force acts outward, that is, toward the retaining member 2 side, so the outer rising portion 12A is fitted into the space 24 formed on the left and right sides of the tower-shaped portion 21 of the retaining member 2 from the side.

[0033] Regarding the installation of the cover material 3, it is fitted from above so as to straddle the adjacent vertical roofing exterior materials 1,1. As mentioned above, the covering portion 31 and the engaging portion 32 are formed so that an elastic resistance force acts inward. Therefore, simply by positioning the covering portion 31 so as to press it from above, the covering portion 31 elastically expands and the engaging portion 32 is fitted into the tip 123 of the outer rising portion 12A. In other words, simply by positioning it so as to press it from above, the mounting angle can be adjusted and it can be fitted.

[0034] As described above, the building exterior structure of the present invention, constructed from these components, has a molded portion 12 of the vertical roofing exterior material 1 that is formed with a continuous curved molded surface and a flat surface, meaning that there are no bent parts at all. Therefore, it is possible to easily realize a shape that prevents rainwater from penetrating the connection between adjacent vertical roofing exterior materials 1,1, and by making it a simple and smooth shape, the flow of rainwater can be directed away from the connection part. The "connection portion" mentioned above refers to the part into which rainwater enters, and in this embodiment 1, it refers to the space (gap) between the downward-facing tip 123 of the outer rising portion 12A and the covering portion 31.

[0035] As shown by the dotted arrows in Figure 1(b), the flow of rainwater (rainfall) described above is blown from the outside to the inside by strong winds, etc., and gently crosses the inner rising section 12B as indicated by the dotted arrows. Subsequently, rainwater that has passed over the inner riser 12B flows through the drainage channel 12C in the direction of flow (from the front to the back in the diagram). Rainwater exceeding the storage capacity of the drainage channel 12C is further sprayed inward and rises in a reverse flow (against gravity) along the surface of the outer rising section 12A. Rainwater that rises along the outer rising section 12A falls away from the outer rising section 12A, being drawn in as it falls.

[0036] When there is little or no wind and the conditions are calm, the rainwater may flow over the inner rising section 12B mentioned above and into the drainage channel 12C in the direction of flow. However, when the wind becomes strong, the rainwater easily flows over the inner rising section 12B as described above. Therefore, the flow of rainwater can be directed away from the gap between the tip 123, which is the downward-facing piece of the outer rising portion 12A, and the covering portion 31, which is the "connection point" where rainwater infiltrates.

[0037] Furthermore, in this embodiment 1, since the aforementioned simple cover material 3 is used, it can be formed with a continuous curved molded surface, similar to the molded portion 12 of the vertical roofing exterior material 1, and moreover, it does not require a special shape like the cap material in the aforementioned Patent Document 1, so there is no burden on material costs. [Explanation of symbols]

[0038] 1. Vertical roofing cladding 11 Face plate part 12 Molding section 12A Outside rising section 12B Inner rising section 12C Drain 2. Retaining member 21 Tower 22 Standing part 23 Bottom part 230 holes 2b Fixture 3. Cover material 31 Covering part 32 Engaging part 33 leg piece 4. Primer 4A Insulation 5 skeleton

Claims

1. In a building exterior structure in which vertical roofing exterior material having molded parts on the left and right is laid between retaining members installed on the substrate, The aforementioned holding member has a tower-shaped section in the center and upward-facing upright sections on its left and right sides. The molded portion of the vertical roofing exterior material has inner rising portions on the left and right side edges of the flat panel portion, and outer rising portions on the outside thereof, and the inner rising portions are held in a fitted manner by the upright portion of the holding member, and the outer rising portions are held in a fitted manner by the tower-shaped portion. The aforementioned vertical roofing exterior material is characterized by being formed only of continuous curved molded surfaces, or of curved molded surfaces and flat surfaces, for use as an exterior building structure.

2. The building exterior structure according to claim 1, characterized in that the tower-like portion has upper fitting portions formed on its left and right sides, and the upper holding portion formed at the upper end of the outer rising portion is held in an engaged manner.

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