JP3224789U - Flat circular roof or flat fan roof - Google Patents

Abstract

[PROBLEMS] To provide a flat circular roof or flat fan roof which has high durability even when an operator or the like rides on it, and maintains good engagement quality even in an environment such as an earthquake, strong wind, heavy rain, or thermal expansion. . An element trapezoidal flat plate (P, Q) cut in the direction of a rolling roll, which is inclined at a small angle with respect to the direction of the rolling roll, has a compression-side inward bending R axis (tensile-side bending) in the direction of the rolling roll. With R axis), a flat portion formed by roll forming bending in a direction substantially perpendicular to the direction of the rolling roll is formed, and a flat circular roof or a flat fan-shaped roof is formed including at least this portion. Then, the cutting machine and the roll forming machine are brought into the vicinity of the construction site for processing. [Selection diagram] Fig. 1

Description

    The present invention relates to an improvement in roofing construction using a thin plate, and relates to an overall flat circular thin plate roof having a flat plate shape and a flat plate shape at least in part.

    Traditional Japanese tiled roofs have a profound and luxurious appearance, and are used in many houses and buildings. However, houses and buildings with inadequate earthquake-resistant structures collapsed, causing half-destruction and damage. Such damage is a concern even in earthquakes expected to occur in the future. Although the effectiveness of slate roofs has been confirmed, slate roofs are also heavy and have a large burden on houses and buildings due to large earthquakes. The durability of a slate roof system is often said by the roof construction industry to be less durable and require more maintenance for around 10 years compared to a thin metal roof system. Here, in recent years, thin roof members including a metal plate having a good appearance have been widely used as roofs for schools, gymnasiums, factories, and the like. These thin roof members have been widely used because of their high waterproofness and wind pressure resistance. The roof member made of a thin plate including a metal plate can be fastened and assembled quickly by devising it, and the running cost including maintenance is low. The technique of the thin-plate root member can prevent a binding tool such as a bolt and nut for engagement from appearing on the outer surface. It can be applied to various types of side walls such as side walls of small and medium-sized buildings, side walls of traditional buildings, and side walls of columns. It can be applied to shining beauty side walls and sharp beauty side walls. Applicable to modern and modern buildings as well as traditional buildings. Here, in recent years, thin roofs having a flat circular shape and a flat fan shape in part have been adopted in schools, gymnasiums, factories, public facilities, shopping centers, etc. due to their design and functionality due to their design and functionality. is there. Conventional slate roofs include natural slate consisting of thin slate or layered shale, and thick slate as artificial slate (press-molded mortar tile), asbestos cement board Such as cement products have been widely used. The service life of the conventional slate roof is generally said to be 20 years, and painting maintenance is required. On the other hand, for example, it has been said that the service life of a roof using a thin metal plate has a service life of about 30 years without any special coating. Here, the demand for flat circular roof and flat fan technology for large buildings has been increasing in recent years.

    In Patent Document 1, a temporary support structure 4 including a temporary central support portion 41 located at a central portion and a temporary peripheral support portion 49 located at a peripheral portion is constructed, and a roof frame 21 is previously divided into a plurality of roof frame blocks 22. And one roof frame block 22 is placed at the temporary placement position P of the temporary support structure 4, and the horizontal force F applied to the roof frame block 22 causes the center of the roof plane to rotate horizontally about the rotation axis C. After the movement, the other roof frame blocks 22 are sequentially placed on the temporary placement position P, and are moved horizontally, and the plurality of roof frame blocks 22 are joined together to assemble the entire roof frame 21 to form the inside of the tank body. A tank with a metal roof frame that can be installed on the tank body, which can be widely applied regardless of the size of the site and the size of the roof frame without installing a full-scale scaffold. Roof framework construction method is disclosed.

  Further, in Patent Literature 2, first and second roof elements 24, 24 and 25, 25 are provided at least on an upper portion of a baseball field (structure) 22, and the first and second roof elements 24, 24 are provided. Each of 24, 25, 25 is supported by first and second rotating shafts 30, 30, 31, 31, 31 provided at different positions of the baseball stadium 22, thereby simplifying the opening / closing mechanism and structure. At the same time, there is disclosed a roof that can be opened and closed so that the cost for installation does not increase, thereby simplifying the opening / closing mechanism and structure, and the cost for installation does not increase.

    Patent Literature 3 discloses that a roof frame of a building is divided into an outer peripheral portion in which an outer peripheral edge and an inner peripheral edge of an arc shape are divided into a fan shape forming a concentric circle, and a center side portion excluded from the outer peripheral portion. The construction of the foundation and outer frame is to be carried out, and the traveling equipment is to be prepared. The central part is completed on the work stage until it is completed and installed on the roof. At the stage where the construction of the outer peripheral frame portion is completed, the outer peripheral portion is provided with a roof steel yard in the plane, a roof is provided in an adjacent part, a ceiling finishing yard, and a steel frame is assembled in the roof steel framing yard. Then, the roof and ceiling are finished in the roof and ceiling finishing yard, the building is moved by the length of the building, and the construction of the roof of the perimeter is advanced. An architectural construction method is disclosed in which the building is constructed at approximately the same height, travels, and the building is advanced.

  Patent Literature 4 discloses that a roof slab 1 is formed into a design shape by a tie rod 6 to form a ground structure on the ground surface, and then a first temporary installation of a central portion on a foundation G is performed using a lifting machine such as cranes 8 and 9. The same roof slab 1 is erected and constructed on the column 4 and the outer peripheral support 3 on the circular outer frame, and then on the first temporary column 4 and the outer peripheral support 3 which are point-symmetric with respect to the first temporary column 4. And then successively repeat the straddling and construction of the roof slab in the same manner as described above with one gap between the outer peripheral support portions 3 and 3 to construct a circular roof. When the roof slab 1 is constructed and becomes a stable structure, the tie rods 6 (and the second temporary supports 5) are removed and reused for an unconstructed roof slab or the like. Significant savings in work costs, work costs and construction time Method for constructing a roof structure was is disclosed.

    In Patent Literature 5, a center base 4 is erected at a central portion 2a of a bottom plate 2 of a cylindrical tank, and a ring 5 is rotatably fitted on the top of the center base 4, and a circular roof 3 is mounted on the ring 5 In the work table for assembling a circular roof in which stepped work table bodies 6 extending radially outward along the inner surface of the work table, the work table body 6 is divided in the radial direction, and each divided work table 6a , 6b are provided with leg members 7a, 7b, 7c extending downward, and bogies 8a, 8b, 8c, which circulate on the bottom plate 2 around the center gantry 4, are provided at the lower ends of these leg members 7a, 7b, 7c. A support 10 is provided between the carriages 8a, 8b, 8c, one end of which is in contact with the tank bottom plate 2 and the other end of which is in contact with the inner surface of the circular roof 3 so as to quickly and accurately prevent the roof member from bending. Good for use in large diameter tanks that can be assembled Assembly for the working table has been disclosed of such circular roof.

  Patent Literature 6 discloses a method for manufacturing a part having a three-dimensional structure by performing press working on a sheet-like springy metal material, and includes a main body portion and a bent portion from the sheet-like metal material. It has a punching step of punching out the intermediate part, and a hemming step of hemming the bent part of the intermediate part, and in performing these steps, it is formed in the rolling step of the sheet-like springy metal material. A method is disclosed in which the bending line of the curved portion is set in a direction intersecting with the roll direction, and a method of manufacturing a target part by performing press working without causing cracks or cracks in the springy metal material is disclosed. I have.

  Patent Document 7 has a tubular light source body and a reflector having a substantially U-shaped cross section so as to surround a part of the tubular light source body. The original image is formed on the photoreceptor by relatively moving while irradiating, and the reflector is made of a rolled aluminum member, and the direction of the roll is perpendicular to the longitudinal direction of the reflector. In the illumination device of the exposure scanning device in the image forming apparatus, a groove 12 for dividing a residual stress acting in a bending direction of the curved portion is provided in a curved portion of the reflection plate 12 so as to form a roll (hereinafter referred to as a roll roll). Is referred to as a roll eye.) A technique is disclosed that keeps the shape of the curved portion of the reflecting plate in which the curved portion is formed in the bending direction.

  In Patent Literature 8, side plates 2 and 3 are provided on four sides of a bottom plate 1 of an assembling returnable box A, and a back plate is connected to each of the opposed side plates 2 and 2. On the upper side surface connected to the side plate portions 4 and 4 opposed to the front side, a folded fastening portion 5 is provided so as to cover the back plate portions 3 and 3, and a fastening member detachable from the folded fastening portion 5 and the side plate portion 4. 6 and 7 are provided to make it easy to assemble and disassemble, and can be assembled and disassembled without any tools. In addition, the parts necessary for forming the box are in a flat state while attached to the cardboard board. A returnable box is disclosed.

JP 2003-213958 A JP-A-11-117445 JP-A-10-205136 JP-A-11-256690 JP-A-6-240857 JP-A-2005-66635 JP-A-6-118518 Registered Utility Model Publication No. 3051785

        Conventional circular and fan-shaped roofs including Patent Literature 1, Patent Literature 2, Patent Literature 3, Patent Literature 4, Patent Literature 5, Patent Literature 6, Patent Literature 7, and Patent Literature 8 have good engaging and assembling properties. It is easy to install, and at the same time, it satisfies the waterproofness and water return function, while maintaining the aesthetic appearance, absorbs the processing error and assembly error of the thin sheet roof member with good redundancy, and has a small number of parts and is stable. There was a problem that it was difficult to maintain the durability quality effectively. At the same time, in the conventional circular and fan-shaped roof technology related to the thin metal sheet roof member including Patent Literature 1, Patent Literature 2, Patent Literature 3, Patent Literature 4, Patent Literature 5, Patent Literature 6, Patent Literature 7, and Patent Literature 8, Due to the low specific heat of metal and thermal conductivity, when thermal expansion occurs due to the vertical fluctuation of the outside temperature, the thermal expansion dimensional difference accumulated by many thin roof members directly engages the thin roof There is a problem that it is difficult to stably absorb with good redundancy and durability in the assembly engagement structure with the member.

  Here, in Patent Document 1, when joining the roof frame blocks 22 to each other, the configuration, structure, assembly, processing method, and manufacturing method of the thin-plate roof having at least a part of a flat circular plate and a flat fan shape are disclosed. There was no problem. There was a problem that the structure and manufacturing method of the shingle itself were not disclosed. Regarding the assembling, manufacturing method and construction method, there is a problem that the means of the present invention is not disclosed.

    Patent Literature 2 has a problem in that nothing is disclosed about a processing method and a manufacturing method of a thin-plate roof having at least partly a flat plate shape and a flat fan shape. The prior art including Patent Literature 2 has a problem in which the configuration of the present invention, the structure of the shingle itself according to the means, and the manufacturing method are not disclosed. Regarding the assembling method and the construction method, there was a problem that the assembling method and the construction method of the shingle of the present invention were not disclosed. There was a problem that nothing was disclosed about the configuration and structure of the roof of the present invention.

  The prior art including Patent Literature 3 has a problem in which a processing method, a manufacturing method, and a construction method of a thin-plate roof having at least partly a flat plate shape and a flat fan shape are not disclosed. There was a problem that the structure and manufacturing method of the shingle itself were not disclosed. Regarding the construction method, there was a problem that the assembling method and the construction method of the shingle of the present invention were not disclosed. There was a problem that neither the configuration nor the structure of the roof of the present invention was disclosed.

  Here, Patent Literature 4 has a problem that the configuration, structure, and manufacturing method of the first roofing plate itself are not disclosed. There was a problem that nothing was disclosed about a processing method and a manufacturing method of a thin-plate roof having at least partly a flat plate shape and a flat plate shape. Regarding the construction method, there was a problem that the assembling method and the construction method of the shingle of the present invention were not disclosed. There was a problem that nothing was disclosed about the configuration and structure of the roof of the present invention.

  Patent Literature 5 has a problem that nothing is disclosed about a processing method, a manufacturing method, and a construction method of a thin-plate roof having at least partly a flat plate shape and a flat plate shape. There was a problem that the structure and manufacturing method of the shingle itself were not disclosed. Regarding the construction method, there was a problem that the assembling method and the construction method of the shingle of the present invention were not disclosed. There was a problem that nothing was disclosed about the configuration and structure of the roof of the present invention.

  Patent Literature 6 is a technology and a function of performing a press working without causing cracks and cracks in a spring metal material, and obtains a thermal expansion, a heat shrinkage, and a weather / durable waterproof function after construction of a sheet metal roof. There was no problem. This technique involves a metal material having a high spring property such as phosphor bronze, and an alloy made of zinc, nickel, or the like, which is called nickel silver or nickel silver. There has been a problem that the technology is used in the field of relatively small articles such as a package of a semiconductor device or a casing of a mobile phone. Therefore, the problems and problems that cannot be used in the environment where the heat shock head is large, the temperature and humidity difference is large, the water immersion environment including acid rain, the large area and the sheet metal roof area where the integration of thermal expansion and thermal contraction is extremely large are remarkable. there were. Here, there is a problem that the technical area of Patent Document 6 is a press technical area and not a long and large area roll forming technical area. Here, there is a problem that the inventor of the present disclosure and the applicant are not those skilled in the art. Although it is difficult to compare those skilled in the art from different technical fields, there is also a problem that the level of those skilled in the art differs depending on the technical field.

  Further, in Patent Document 6, as shown in the intermediate part 11 of FIG. 11, the width of the intermediate part 11 in the direction perpendicular to the roll 17 of the intermediate part 11 is substantially constant, and the difference between the widths is different as in the present invention. There is also a problem that there is no configuration effect. In addition, there is also a problem that the roll direction is not particularly a longitudinal direction as in the present invention. As described above, in the conventional circular roof, the circular flat plate, the circular flat fan-shaped flat roof, by not firmly contacting, especially by not having a certain large area to firmly contact the roof sheets together, That is, there is a problem in that the configuration, operation, and effects described below concerning the compatibility with the inclination variety of the flat roof slab, the ease of assembling and construction, the durability, and the stability of the weather and heat resistance quality due to not being fixedly connected are not disclosed.

  Patent Literature 7 has a problem in that thermal expansion and thermal contraction after construction of a sheet metal roof and weather / durable waterproof function are not obtained. There is a problem that the technique is used in the field of relatively small items such as an illumination device for exposure illumination in an image forming apparatus. Therefore, the problems and problems that cannot be used in the environment where the heat shock head is large, the temperature and humidity difference is large, the water immersion environment including acid rain, the large area and the sheet metal roof area where the integration of thermal expansion and thermal contraction is extremely large are remarkable. there were. Here, the present technology area is a press technology area, not a long and large area roll forming technology area. Here, there is a problem that the inventor of the present disclosure and the applicant are not those skilled in the art. Although it is originally difficult to compare those skilled in the art with different technical fields, there were also problems that the level of those skilled in the art was different depending on the technical field. As described above, in the conventional technology, although the whole is a circular flat plate and a sector-shaped flat plate, the number of component materials and the number of assembling man-hours are small with a small number of parts. There was a problem that the action and effect related to quality stability were not disclosed.

  Patent Literature 7 has a problem that the bending process is performed in the direction perpendicular to the roll, unlike the present invention in which the bending process is performed in the direction perpendicular to the roll. Since the internal crystal structure also flows in the direction of the roll, there is a problem that the effect of preventing cracking of the present invention by performing the process in a direction perpendicular to the roll cannot be obtained. Since the internal crystal structure also flows in the direction of the rolls, there is a problem in that the effect of hardly causing warpage or distortion due to lengthening the cutting in the direction of the approximate rolls of the present invention is not obtained.

  Patent Literature 8 has a problem that nothing is disclosed about a processing method, a manufacturing method, and a construction method of a flat plate roof having an element trapezoidal flat plate, an element square flat plate, and a flat plate fan-shaped thin plate roof. There was a problem that the structure and manufacturing method of the shingle itself were not disclosed. Regarding the construction method, there was a problem that the assembling method and the construction method of the shingle of the present invention were not disclosed. There was a problem that nothing was disclosed about the configuration and structure of the roof of the present invention.

  Patent Literature 8 has a technical purpose of a roll, but a roll having a trapezoidal flat plate and a rectangular flat plate having at least a part thereof, a flat circular plate, a flat fan-shaped thin plate roof, and its functions, assembly, manufacturing method, and construction method. There was a problem that nothing was disclosed about the technology.

  In a conventional flat roof having a flat circular shape and a flat fan shape, in addition to the engagement in the flat structure having a waterproofing function and a flat roof having a flat circular shape and a flat fan shape, in addition to the engagement in the flat shape, a flat circular shape and a flat fan shape roof are provided. No structure has been disclosed in which a bent portion for draining and waterproofing is provided at the tip of the element. As a result, there has been no disclosure of a simple roof slat engagement structure that simultaneously provides thermal expansion, thermal shrinkage, weather resistance and durable waterproofing functions after construction of a sheet metal roof. This is presumed to be due to the fact that circular and fan-shaped roofs were used for applications such as tanks and domes, and that there were few buildings with flat circular and fan-shaped roofs. .

  Therefore, the present invention has good engagement and assemblability, is easy to construct, and at the same time, satisfies waterproofness and water return function, while maintaining aesthetic appearance, processing error of element trapezoidal flat plate and element square flat plate, assembly An object of the present invention is to provide a flat circular roof, a flat fan-shaped roof, and a method of assembling, manufacturing and constructing the same, which effectively absorb errors and maintain stable and durable quality with a small number of parts and with a small number of parts. . It is an object of the present invention to provide a flat circular roof, a flat fan-shaped roof, and a method of assembling, manufacturing, and constructing the same, which effectively maintain stable and durable quality even when there is thermal expansion and contraction due to heat and cold or heat shock. In addition, the present invention absorbs the processing errors and assembly errors of the element trapezoidal flat plate and the element square flat plate with good redundancy, even if the thin roof member is steeply inclined, gently inclined, or flat. An object of the present invention is to provide a flat circular roof, a flat fan-shaped roof, and a method of assembling, manufacturing and constructing the same, which effectively maintain stable and durable quality with the number of parts.

  And, the present invention is suitable for a corner plate that can not be firmly fixed by not firmly contacting the element trapezoidal flat plate and the element square flat plate with a predetermined area, and at the same time, An object of the present invention is to provide a flat circular roof, a flat fan-shaped roof, and a method of assembling, manufacturing and constructing the same, which can maintain inclination variety, ease of assembling and construction, durability, and stability of weathering quality. Also, in the present invention, since the crystal structure inside the thin sheet metal of the roof flows in the direction of the roll, there is a case where the bending at the time of curving processing has a slight inclination angle in the roll. , By performing in a direction substantially perpendicular to the direction of the roll, it is difficult to crack, the cutting quality is stable and good, and the warpage and distortion of various types of element trapezoidal flat plate and elemental square flat plate are less likely to occur stably. It is an object of the present invention to provide a flat circular roof, a flat flat roof, and a flat flat roof in which the warpage and distortion of the flat flat roof are small and stable. In some cases, the roll may have a slight angle of inclination in the roll, but by performing it approximately perpendicularly, the element trapezoidal plate, elemental rectangular plate, dimensional accuracy, temporal change accuracy, elasticity, strength It is an object of the present invention to provide a flat circular roof and a flat fan-shaped roof which are easy to process and provide good assemblability, workability, durability, and weather resistance.

  In addition, at the same time, the present invention provides flat circular roofs and flat fan roofs that maintain the strength when workers climb on top during construction or maintenance or when temporarily placing construction equipment, materials and tools on the roof. It is an object to provide an assembling, manufacturing method, and a construction method. Also, during construction or maintenance, when the worker gets on top, or when the construction equipment, materials, tools, etc. are temporarily placed on the roof, they will bend, and the waterproof function etc. An object of the present invention is to provide a flat circular roof, a flat fan-shaped roof, and a method of assembling, manufacturing, and constructing the same. Also, at the time of construction or maintenance, when the worker climbs on, or temporarily places the construction equipment, materials, tools, etc., it bends due to gravity, and in the state where force is applied, by contact and rubbing, Provides flat circular roofs, flat fan-shaped roofs, and methods for assembling, manufacturing, and constructing them so that they can be prevented from being partially peeled off and causing corrosion when thin clad roof members are coated or clad materials are placed. The task is to In addition, the present invention provides a flat circular roof, a flat fan-shaped roof, and a method of assembling, manufacturing and constructing the same, which suppress the initiation of corrosion caused by contact and rubbing in a state where a force is applied by bending due to gravity. The task is to

  In order to solve the above-mentioned problem, the present invention relates to the use of at least one large element trapezoidal flat plate having a dimension of any of the upper and lower bottoms of the substantially trapezoidal shape. A trapezoidal side of the at least one substantially trapezoidal element trapezoidal flat plate in order to set a larger side of any dimension of the lower bottom to be an overall flat circular shape, an outer arc substantially outer circumferential curvature of the entire flat fan-shaped roof member. Forming a bent portion having a water return waterproof portion having a bending axis system in one of the upper and lower bottom directions and a substantially vertical axis, and connecting the trapezoidal sides of the element trapezoidal flat plate. The bending axis system is set near one of the axes of the upper and lower bottoms of the element trapezoidal plate and the axis substantially in the vertical direction, and the smaller side of either the upper or lower bottom of the element trapezoidal plate is bent. At least one is used to form an inner circular arc with a curvature of approximately the inner circumference. Flat roof, the flat fan-shaped roof, wherein the element trapezoidal flat plate is an integer multiple including at least one of the upper and lower bottom dimensions, and the at least upper or lower base dimensions The total value of an integral multiple including one of the above is the approximate width of the roll material, and the height direction of the element trapezoidal flat plate is rolled in a direction perpendicular to the approximate width of the roll material of the sheet metal roll material. Roll direction, the roll direction of the rolling roll material, i.e., in the vertical height direction between the upper bottom and the lower bottom of the element trapezoidal flat, while moving the element trapezoidal flat, at least the element trapezoidal flat One side, the vertical height direction between the upper bottom and the lower bottom, that is, the sheet metal roll material is substantially inclined so as to be inclined at a small angle with respect to the direction of the rolling roll of the sheet metal roll material. Cut straight By forming and bending the compression-side inner bending R-axis (tensile-side bending R-axis) parallel to each of the trapezoidal sides of the cut element trapezoidal flat plate, the bending is performed in a direction substantially perpendicular to the direction of the rolling roll. By forming the element trapezoidal flat plate forming the bent portion of the element trapezoidal flat plate.

  Further, in order to solve the problem, the present invention provides the bent portion provided on at least one of the trapezoidal sides of the at least one element trapezoidal flat plate and the side portion of at least one elemental square plate. This is achieved by engaging the bent portions with each other.

  Furthermore, in order to solve the above-described problem, the present invention provides that, after forming one of the trapezoidal sides of the element trapezoidal flat plate, or any one of the sides of the element square flat plate, forming the bent R portion roll. The element trapezoidal flat plate, the element square flat plate, and the element square flat plate, in which the other part of the side of the element square flat plate is bent into a bend R portion around the other side with respect to one of the sides of the element square plate. Consisting of

  In order to solve the above-mentioned problem, the present invention provides a basic corner-engaging bent portion having the straight section in the vicinity of the trapezoidal side of the element trapezoidal plate, or the periphery of the side of the elemental rectangular plate. Alternatively, the waterproof drainer bend R is formed by roll forming.

  Further, in order to solve the above-described problem, the present invention relates to any one of the trapezoidal sides of the element trapezoidal flat plate, or any one of the sides of the element rectangular flat plate, after the bending R portion roll forming. The element trapezoidal flat plate, the element square flat plate, and the element square flat plate, in which the other part of the side of the element square flat plate is bent into a bend R portion around the other side with respect to one of the sides of the element square plate. Consisting of

  In order to solve the above problems, the present invention provides a method for forming a trapezoidal flat plate, a steel plate, a color steel plate, a painted stainless steel plate, a clad metal material, a galvanized steel plate, a galvalume steel plate (registered trademark), and an aluminum-zinc plate. It is formed by disposing any one of alloy-plated steel sheet, fluorine steel sheet, resin-coated steel sheet such as polyvinyl chloride resin, pre-painted aluminum sheet, painted aluminum sheet, copper sheet and zinc sheet.

  Further, in order to solve the above problem, the present invention is configured by laminating a heat insulating material on either the roof side of the element trapezoidal flat plate or on the side opposite to the roof.

  According to another aspect of the present invention, there is provided a roll forming machine for processing a part or the whole of the element trapezoidal flat plate, or the bent portion of the element square plate, or the waterproof drainer bent portion. The roll forming machine to be formed is brought into the vicinity of the roof construction site and processed.

  Further, in order to solve the above-mentioned problem, the present invention provides that the rolling direction of the rolling roll material coincides with a vertical height direction between an upper bottom and a lower bottom of the element trapezoidal flat plate, and at least the element trapezoidal flat plate One side, the vertical height direction between the upper bottom and the lower bottom, that is, the sheet metal roll material is substantially inclined so as to be inclined at a small angle with respect to the direction of the rolling roll of the sheet metal roll material. A cutting machine for cutting in a straight line is brought near the roof construction site to cut the element trapezoidal flat plate or the element square flat plate.

<Operation and Effect 1 According to Claims 1 to 7 of the Invention>
Therefore, according to the present invention, while forming and engaging a flat plate circular, flat fan-shaped thin plate roof, an element trapezoidal flat plate, and an element square flat plate, the same as the conventional flat plate flat roof, engagement, Good assemblability, easy to construct, and at the same time, satisfying waterproofness and water return function, maintaining good appearance, absorbing processing errors and assembling errors of thin sheet roof members with good redundancy, and reducing the number of parts Thus, the operation and effect of effectively maintaining stable durability quality can be achieved.

<Operation and Effect 2 According to Claims 1 to 7 of the Invention>
When the element trapezoidal flat plate and the element square flat plate according to the present invention are adopted as standard roof element parts, the element trapezoidal flat plate and the element square flat plate according to the present invention are formed to form a large area of a flat plate and a flat fan roof. Can be used as standard element trapezoidal flat plate and elemental square flat plate, and the operation and effect to improve the productivity in the factory and at the construction site can be achieved. Depending on the shape of the entire flat plate circular and flat fan shaped roofs, the specifications for the standard element trapezoidal flat plate and the elemental rectangular flat plate may be slightly changed to slightly more complicated It has the function and effect of being able to form an overall flat circular plate and flat fan shaped roof.

<Operation and Effect 3 According to Claims 1 to 7 of the Invention>
The flat circular and flat fan roofs of the present invention have good engagement and assemblability, are easy to construct, and at the same time, easily satisfy the waterproofness, water return function, and maintain the appearance while processing the thin roof members. Errors and assembly errors can be absorbed with good redundancy, and the operation and effect of effectively maintaining stable and durable quality with a small number of parts can be achieved. In addition to the function of maintaining the waterproofness and the water return function and maintaining the strength, the function and effect of these functional structures hardly affecting the deterioration of the external appearance are exhibited.

<Operation and Effect 4 According to Claims 1 to 7 of the Invention>
In addition, according to the flat circular and flat fan roofs of the present invention, when thermal expansion occurs due to the vertical fluctuation of the outside air temperature due to the low specific heat of metal and heat conductivity, it is accumulated in many thin roof members. With the assembling and engaging structure with the element trapezoidal flat plate and the elemental square plate that directly engage with each other, the function and effect of favorably absorbing the redundancy can be obtained.

<Operation and Effect 5 According to Claims 1 to 7 of the Invention>
And, according to the flat circular and flat fan roofs of the present invention, when negative pressure and positive pressure are repeatedly applied by typhoon or strong wind, redundancy and good waterproofness, water return function by bending part is maintained durably, During maintenance and maintenance, when workers climb on top, or temporarily place construction equipment, materials, tools, etc. on the roof, flexure and bending history are prevented from remaining with good redundancy. The function and effect of preventing the waterproof function from deteriorating due to the history of warping is prevented with a simple structure.

<Operation and Effect 6 According to Claims 1 to 7 of the Invention>
In other words, the flat circular and flat fan-shaped roofs according to the present invention are not a configuration or means for abutting or basically firmly bonding with an area. According to the present invention, the trapezoidal flat plate and the rectangular flat plate have a certain large area, especially when the arabesque members under the eaves and the thin-plate roof member do not abut firmly or not firmly. The effect and effect on the positional variation correspondence, the inclination variety correspondence, the ease of assembling and construction, the durability, and the stability of the weather resistance quality due to the element trapezoidal flat plate and the element square flat plate due to the surface not being firmly engaged. .

<Operation and Effect 7 According to Claims 1 to 7 of the Invention>
As a result, the flat circular and flat fan-shaped roofs of the present invention can be easily formed into a trapezoidal flat plate and a quadrangular flat plate by bending the rolled direction as a rough axis in the same manner as the bending, so that the bent back portion at the tip can be easily formed. Can be arranged. And even if it has the wind and rain of a side strike, such as a typhoon, it will have a raining action and an effect. Moreover, the flat circular and flat fan-shaped roofs of the present invention have a strength improving effect as a bending, raining and bending synergy effect. In other words, with less element trapezoidal flat plate and elemental rectangular flat plate, the strength will be reduced when the worker gets on top at the time of construction or temporarily places materials and tools etc. on the construction equipment and storage during construction etc. At the same time, the function and effect of preventing the waterproof function from being lowered due to the bending or the history of the bending being left remain.

<Operation and Effect 8 According to Claims 1 to 7 of the Invention>
In addition, the flat circular and flat fan roofs of the present invention are formed by bending an element trapezoidal flat plate and an element square flat plate, and forming a bent portion at the end by bending the roll direction substantially as an axis. Since the element square flat plate is subjected to work hardening, the above-mentioned bending, the history of bending and the effect of lowering the waterproof function and the improvement in strength can be effectively realized with a thinner, lighter and less material. According to the flat circular and flat fan roofs of the present invention, when the thermal expansion occurs due to the vertical fluctuation of the outside air temperature due to the low specific heat of the metal and the heat conductivity, many element trapezoidal flat plates, elements The function and effect of absorbing the thermal expansion dimensional difference accumulated by the square plate with the element trapezoid plate and the element square plate with good redundancy can be obtained.

<Operation and Effect 9 According to Claims 1 to 7 of the Invention>
And according to the flat circular and flat fan roofs of the present invention, when repeatedly applying negative pressure and positive pressure due to typhoons and strong winds, it maintains redundancy and water resistance, water return function durably, during construction and maintenance When workers climb on top or temporarily place construction equipment, materials, tools, etc. on the roof, it flexibly prevents flexing and leaving a history of flexing, flexing, flexing The simple structure prevents the waterproof function from deteriorating due to remaining history.

<Operation and Effect 1 According to Claim 2 of the Invention>
According to the flat circular and flat fan roofs of the present invention, the bent portion provided on at least one of the trapezoidal sides of the at least one element trapezoidal flat plate, and the bent portion provided on the sides of at least one elemental rectangular flat plate. By engaging the bent portions with each other, the curvature is large, that is, in a flat circular plate and flat fan shaped roof, the inner radius inside the curvature suitable for the size and shape of the building is approximately the inner radius, the outer radius It has the effect of being able to provide a larger flat circular roof or flat fan-shaped roof having a substantially outer circumference. Dimensional difference between the upper and lower bottoms of the element trapezoidal flat plate, the vertical height direction between the upper and lower bottoms, that is, the sheet metal to be inclined at a small angle with respect to the direction of the rolling roll of the sheet metal roll material. Element of inclination angle according to the angle of oblique angle that cuts the roll material into a substantially straight line By selecting the design dimensions of the trapezoidal flat plate and the height of the trapezoidal plate, the inner circular arc suitable for the size and shape of the building in the flat and flat fan roof The present invention provides an operation and effect of providing a larger flat circular roof or flat fan-shaped roof having a substantially circular inner curvature and a substantially outer circular inner curvature.

<Operation and Effect 2 According to Claim 2 of the Invention>
Also, in the present invention, various curves, wave curves, gradually increasing and decreasing curvatures, inner arcs and inner curvatures, and outer arcs and inner curvatures are approximately outer circles by combining and engaging element trapezoidal flat plates and element square flat plates. It has the function and effect of forming a roof such as the circumference. According to the element trapezoidal flat plate and the element square flat plate of the present invention, the inner radius of the inner arc and the outer radius of the inner arc and the outer radius of the outer radius of the outer radius are increased by a certain portion, or a straight portion is adopted and bent. An effect and advantage can be provided in that a deformed flat plate circular roof or a deformed flat fan shaped roof composed of an R portion, a straight portion, and a bent R portion can be provided.

<Operation and Effect 1 According to Claim 3 of the Invention>
Paragraphs 0037 to Paragraph 4 indicate that the trapezoidal flat plate and the bent squares provided on the sides of the element quadrangular flat plate are mutually engaged with each other to form a basic rounded cross section having a straight section in cross section. In addition to the functions and effects described in 0047, furthermore, durability strength, reduction of distortion, prevention of heat distortion, during construction and maintenance, workers get on, construction equipment, materials and tools, etc. on the roof When it is temporarily placed, it is possible to effectively prevent bending or a history of bending from being left, and to reduce the deterioration of the waterproof function due to bending or remaining of the history of bending.

<Operation and Effect 2 According to Claim 3 of the Invention>
Regarding claim 3 of the present invention, the direction of the rolling rolls on the sides of the element square flat plate is not specified, and it is free. However, in a preferred embodiment, the longitudinal direction of the sides of the element square flat plate is substantially the same as the direction of the rolling rolls. It is also possible to cut the rolls so that they coincide with each other, and to bend substantially perpendicular to the direction of the rolling roll. In this case, in addition to the operation described in paragraphs 0037 to 0047, and the effects described in paragraph 0048, the durability is further improved, the distortion is reduced, the heat distortion is prevented, and the construction and maintenance are performed by the worker. When riding, construction equipment, materials and tools, etc. are temporarily placed on the roof, flexing and bending history are prevented from remaining with good redundancy, and bending and bending history remain. It has the function and effect of reducing the deterioration of the waterproof function.

<Operation and Effect According to Claim 4 of the Invention>
Since it is roll-formed compared to press-forming, the element trapezoidal flat plate, the basic square-shaped engaging bent R portion having a linear cross section of the element square flat plate, or the waterproof water draining bent R portion is bent stepwise by a roll. Therefore, a large area can be molded with high productivity. An effect and an effect that can reduce residual strain without causing trouble phenomena such as cracks and cracks are exhibited. As a result, the functions and effects described in paragraphs 0037 to 0047 are achieved, and the functions and effects of paragraph 0048 are further achieved. Furthermore, even if a defect phenomenon such as cracks or cracks or abnormal distortion is detected, by adjusting the roller shape and the distance between the rolls, the optimum quality for the material and thickness of the element trapezoidal flat plate and the element square flat plate In addition, it is possible to provide an element trapezoidal flat plate, a flat plate circular shape, and a flat fan shaped roof with respect to a quadrangular flat plate with optimum productivity.

<Operation and Effect According to Claim 5 of the Invention>
Either one of the trapezoidal sides of the element trapezoidal flat plate or one of the sides of the element rectangular flat plate is formed by the bending R-section roll forming, and then the register mark is formed (inverted) so that the element trapezoidal shape is formed. By performing the roll forming of the bent portion R around the other side with respect to either the flat plate or the side of the element square flat plate, an effect and an effect that the bent portion can be roll formed by a simpler roll forming machine can be obtained. If the left and right sides of the element square plate are roll-formed to form a bend, if the rolls of the roll forming machine are arranged at symmetrical positions with respect to the element square plate, the left and right bends can be formed simultaneously. There is a merit that can be molded. However, the sides excluding the upper and lower bottoms of the trapezoidal flat plate that form the whole flat circular roof or flat fan roof are not parallel. It is necessary to gradually change the distance between the axes of the rolls of the forming machine in the height direction of the element trapezoidal flat plate. Here, after forming the R-shaped bend, forming a roll around the other side of one of the element trapezoidal flat plate and the side of the element square flat plate by performing registration marks (inverting the top and bottom). With the same roll setting, the same quality cornered bent section can be formed with the same roll setting, without making the roll position of the roll forming machine delicately complicated. It has the function and effect that can be given to the left and right. The other side of the element trapezoidal flat plate is also cut with respect to the cut line portion obtained by cutting the sheet metal roll material into a substantially straight line so as to be inclined at a small angle with respect to the direction of the rolling roll of the sheet metal roll material. It has the function and effect that it can form a corner bent portion of the same quality as that of. In addition, the functions and effects described in paragraphs 0037 to 0047 are exerted thereon. In addition, it has the effect of reducing the overall environmental impact of the large life cycle, such as the reduction of the environmental load during processing, including the reduction of the environmental load on the production of the material itself, the reduction of the input power of the processing equipment, and the reduction of the environmental load during recycling. Play

<Operation and Effect According to Claim 6 of the Invention>
Furthermore, according to the flat circular and flat fan roofs of the present invention, the corrosion resistance and durability are good, the colorful appearance is good, and the mass-produced thin folded plate roof member has good drainage waterproofing property, and the workability is good. Can be obtained. Further, there is an effect that the maintenance period span is extended. Also, the functions and effects described in paragraphs 0037 to 0047 are exhibited.

<Operation and Effect According to Claim 7 of the Invention>
On the roof side of the element trapezoidal flat plate, or by laminating a heat insulating material on one of the opposite side to the roof, the element trapezoidal flat plate or flat plate circular shape, a part of the flat fan-shaped roof of the element square flat roof, or When a thin metal plate is adopted by laminating a heat insulating material on one side of the roof and the other side, due to the low specific heat of the metal and the heat transfer, the element temperature traps The temperature and the temperature inside the rectangular flat plate have an effect and an effect of suppressing a phenomenon that can be easily followed. As a result, the operation and effect of reducing the occurrence of dew condensation are achieved. In addition, the functions and effects described in paragraphs 0037 to 0047 are exerted thereon.

<Auxiliary action and effect 11 according to the present invention>
By bringing the roll forming machine near the roof construction site and processing it, if the processing such as forming of the thin sheet roof member at the factory is increased, bending processing etc. into flat circular, flat fan shaped thin sheet roof member products, semi-finished products, etc. Depending on the degree to which it is applied, the product of the flat and flat fan-shaped thin roof members and the semi-finished product itself become three-dimensional. As a result, the volume is increased as a whole. In addition, it is necessary to manufacture material handling containers and jigs exclusively for transportation so that bent parts are not deformed by the overlapping weight of materials or vibration during transportation, etc., transportation cost, total cost Goes up. According to the present invention, these man-hours and costs can be reduced, and the quality deterioration of products and semi-finished products of flat circular and flat fan-shaped thin roof members during transportation can be avoided. In the vicinity of the construction site for flat circular and flat fan-shaped thin roof members, if the above-mentioned thin-plate folded flat roof members are processed, transportation costs for products of flat circular and flat fan-shaped thin roof members, semi-finished products, and material handling exclusively for transport It has the function and effect of greatly reducing the cost of manufacturing containers and jigs. Even in remote locations, it has the effect and effect that assembly and construction can be performed with low total cost.

<Auxiliary action and effect 12 according to the present invention>
In this way, the plastic processing is carried out by bringing a plastic working device that processes part or all of the sheet metal plastic working such as the bent portion of the element trapezoidal flat plate and the element square flat plate near the roof construction site, and the plastic working is performed. It has the effect of reducing the environmental load at the time of processing, including the reduction of the environmental load, the input power of the processing equipment, and the environmental load at the time of recycling, such as the reduction of the environmental load at the time of recycling. As for the element trapezoidal flat plate and the element square flat plate, the roof dimension of a large area shopping center, a large area gymnasium, a large area public facility, and the like often have a long dimension in the height direction of the element trapezoidal plate. It is difficult or impossible to transport such long element trapezoidal flat plate and element square flat plate to the construction site after the bent portion is plastically processed at the factory because of the length of transport means such as ordinary trucks. There are things. The operation and effect of avoiding this is achieved.

<Auxiliary action and effect 13 according to the present invention>
The roll direction of the rolling roll material is aligned with the vertical height direction between the upper and lower bases of the element trapezoidal flat plate, and at least one side of the element trapezoidal flat plate is positioned between the upper and lower bases. The vertical height direction, that is, a cutting machine that cuts the sheet metal roll material in a substantially straight line so as to be inclined at a small angle with respect to the direction of the rolling roll of the sheet metal roll material, near the roof construction site. By bringing the element trapezoidal flat plate, or a cutting machine that cuts the element square flat plate near the roof construction site and processing it, the element trapezoidal flat plate, the element square flat plate is a large area shopping center, a large area For roofs of gymnasiums, large-area public facilities, and the like, the height dimension of the trapezoidal flat plate is often set to be long. Such a long element trapezoidal flat plate and a long element quadrangular flat plate may be difficult or impossible in terms of quality and material handling to be transported to a construction site after plastic processing of a bent portion at a factory. . The operation and effect of avoiding these difficulties and impossibility are exhibited. The roll material can be supplied to the construction site as it is, and the operation and effect of effectively reducing the transportation cost can be achieved. Since the roll material can be supplied to the construction site as it is, it has the effect and effect that handling is easier than transporting it as a product or semi-finished product. Since the roll material can be supplied to the construction site as it is, it has the effect and effect of avoiding and reducing defects such as deformation defects, scratches and dents generated in the process of transporting the semi-finished product, and improving the yield.

<Auxiliary action and effect 14 according to the present invention>
The product of the element trapezoidal flat plate, the element square flat plate, and the semi-finished product itself become three-dimensional. As a result, the volume is increased as a whole. In addition, it is necessary to manufacture material handling containers and jigs exclusively for transportation so that bent parts are not deformed by the overlapping weight of materials or vibration during transportation, etc., transportation cost, total cost Goes up. According to the present invention, the man-hour and cost can be reduced, and an operation and an effect can be obtained in which the quality of a trapezoidal flat plate, a quadrangular flat plate product, and a semi-finished product during transportation can be avoided.

<Auxiliary action and effect 15 according to the present invention>
In the vicinity of the construction site of flat circular roofs and flat fan roofs, if many element trapezoidal flat plates and element square flat plate members are processed, the cost of transporting element trapezoidal flat plates, element square flat plate members, semi-finished products, and materials exclusively for transportation It has the effect and effect that the manufacturing cost of handling containers and jigs can be significantly reduced. Even in remote locations, it has the effect and effect that assembly and construction can be performed with low total cost. As described above, the shearing and cutting device for processing part or all of the shearing and cutting of the trapezoidal portion of the element trapezoidal flat plate and the elemental square flat plate is brought near the roof construction site and subjected to the shearing and cutting process. It has the effect of reducing the environmental load during processing, including the reduction of the manufacturing environmental load, the reduction of input power to the processing equipment, and the reduction of the environmental load during recycling. The functions and effects described in paragraphs 0037 to 0047 are exhibited.

    According to the element trapezoidal flat plate and the element square flat plate of the present invention, the engaging and assembling properties are good, the construction is easy, and at the same time, the waterproofness and the water return function are satisfied, and the element trapezoidal flat plate and the element are maintained while maintaining the aesthetic appearance. It is possible to provide a flat-plate circular roof and a flat-plate fan-shaped roof capable of absorbing a processing error and an assembling error of a rectangular flat plate with good redundancy and effectively maintaining stable durability quality with a small number of parts. At the same time, while performing the water return function against the wind and rain of side hitting, it absorbs the processing error and assembly error of the element trapezoidal flat plate and the element square plate with good redundancy, and effectively maintains stable durable quality with a small number of parts This has the effect of providing a flat circular roof and a flat fan roof.

  Due to the low specific heat of metal and thermal conductivity, when thermal expansion occurs due to vertical fluctuation of outside air temperature, the thermal expansion dimensional difference accumulated by many element trapezoidal flat plates and element square flat plate members, A flat circular roof and a flat fan-shaped roof exhibiting an operation and effect of absorbing redundancy with good assembling structure can be provided.

  According to the flat round roof and flat fan roof of the present invention, when negative pressure and positive pressure due to typhoon or strong wind are repeatedly applied, waterproofness and water return function are maintained with good redundancy, and work is performed during construction and maintenance. When a person climbs on top or temporarily places construction equipment, materials, tools, etc. on the roof, it flexibly prevents bending and the history of bending to remain, and flexing and bending history The effect of preventing the deterioration of the waterproof function due to the remaining structure with a simple structure.

  The flat circular roof and flat fan roof according to the present invention have good corrosion resistance and durability, colorful appearance, good mass productivity and good drainage waterproofing, and good workability. Can be. Further, there is an effect that the maintenance period span is extended.

  In the flat circular roof and flat fan roof of the present invention, when a thin metal plate is adopted as the element trapezoidal flat plate and the element square flat plate member, due to the low specific heat of the metal and the heat transfer, due to the vertical fluctuation of the outside air temperature, It is possible to suppress a phenomenon that the temperature inside the thin folded plate roof member easily follows. As a result, it is possible to reduce the occurrence of dew condensation.

  In the flat circular roof and the flat fan roof composed of the element trapezoidal flat plate and the element quadrangular flat plate provided with the heat insulating material of the present invention, the heat insulating effect of the element trapezoidal flat plate and the element quadrangular flat plate member can be maintained more durably over time. To play. After bending of the bent portion of the element trapezoidal flat plate or the element quadrangular flat plate member, there is an effect of protecting a surface defect which is likely to occur on a stressed surface layer and its expansion from an external environment.

  In addition, the flat circular roof and flat fan roof of the present invention reduce the vibration, resonance, and amplitude of the building itself due to the vibration of the building excited by the heavy roof when a large earthquake occurs due to the weight reduction of the entire roof system. It has the effect of being able to reduce. This has the effect of reducing the damage caused by the collapse or semi-collapse of the building at the time of the occurrence of an earthquake, and also has the effect of suppressing the deterioration of the building over time due to resonance or the like even with a small earthquake. In addition, the color variety of the plate material has an effect of creating an aesthetic appearance and appearance desired by the construction subject, which is suitable for the building. It has the effect that fasteners and bent parts do not appear on the exterior of the roof.

  In addition, the flat circular roof and the flat fan-shaped roof of the present invention have the effect of increasing the strength of the rib and making it harder to deform. As a result, the waterproof effect is stably improved with time. In addition, the durability is improved under both negative and positive pressures due to typhoons and strong winds. In addition, the strength is improved in both the negative pressure and the positive pressure, and the durability with time when the negative pressure and the positive pressure are repeatedly applied is also improved.

    The present invention has the following effects by bringing a shearing cutter or a roll forming machine near the roof construction site and performing plastic working. When the processing such as forming of the thin-plate roof member in the factory is increased, the product of the thin-sheet roof member, the semi-finished product itself depends on the degree to which the bending and the like are performed on the product of the thin-plate roof member and the semi-finished product. Becomes three-dimensional. As a result, the volume is increased as a whole. In addition, it is necessary to manufacture material handling containers and jigs exclusively for transportation so that bent parts are not deformed by the overlapping weight of materials or vibration during transportation, etc., transportation cost, total cost Goes up. According to the present invention, the man-hour and cost can be reduced, and the quality of products and semi-finished products of the thin folded plate roof member during transportation can be avoided. In the vicinity of the construction site of the thin folded sheet roof member, if the processing of the thin folded sheet roof member is often performed, the transportation cost of the product of the thin folded sheet roof member, the semi-finished product, and the material handling container and jig dedicated to the transportation. This has the effect of greatly reducing the production cost of In addition, even in remote construction, there is an effect that assembly and construction can be performed while suppressing the total supply chain total cost such as material processing cost and transportation.

(A), (b) is a schematic plan view which shows the element trapezoid flat plate of the flat-plate circular roof of this invention, and a flat fan-shaped roof. (C) is a schematic plan view showing a rectangular flat plate of the flat circular roof and the flat fan roof of the present invention. 1 is a schematic perspective view showing the entire flat circular roof and flat fan roof of the present invention. FIG. 4 is a schematic overall perspective view of a step for forming a trapezoidal portion by roll forming an element trapezoidal flat plate and an element square flat plate according to the embodiment of the present invention. FIG. 5 is a perspective view schematically showing a final step of a forming process of forming a trapezoidal portion by roll forming an element trapezoidal flat plate and an element square flat plate according to the embodiment of the present invention. It is a perspective view which shows the cutting process of the element trapezoid flat plate and the element square plate of embodiment of this invention.

  Hereinafter, an embodiment of the present invention will be described with reference to the accompanying drawings. 1 (a) and 1 (b) show an embodiment of the flat circular roof of the present invention, the trapezoidal flat element of the flat fan-shaped roof, the flat circular roof of the present invention, and the quadrangular flat element of the flat fan-shaped roof. It is a schematic plan view shown with A. In FIG. 1 (a), P and Q are element trapezoidal flat plates of the flat circular roof and flat fan type roof embodiments of the present invention. PU is a small upper bottom of the element trapezoidal flat plate P, and PB is a large upper bottom of the element trapezoidal flat plate P. Similarly, QU is a small upper base of the element trapezoidal flat plate Q, and QB is a large upper base of the element trapezoidal flat plate Q. The element trapezoidal flat plate has an integral multiple length including a single dimension length of at least one of the upper base and the lower base, and at least one of the upper base or the lower base. A total of three values of integral multiples including the dimension length is the approximate width dimension of the roll material. In other words, the total value of the PU single dimension length and the QU single dimension length is made to match the roll width in the roll direction indicated by the double-headed arrow A, thereby eliminating waste of material. Further, the sum of the PB and QB times is made equal to the rolling roll width to reduce material waste.

  In FIG. 1A, QU is a large lower base of the element trapezoidal flat plate Q, and QB is a small upper base of the element trapezoidal flat plate Q. T1 and T2 are the heights of the trapezoidal flat plates P and Q, respectively. In FIG. 1 (a), the sum of PU and QU, that is, the heights T1 and T2 with respect to the rolling roll width, is determined by the magnitude of the outer circular arc and the outer radius of curvature of the outer circular arc of the entire flat fan shaped roof member to be designed. Set as appropriate. By adopting the roll width of the so-called fixed-size width, it is possible to obtain elemental trapezoidal flat plates and square quadrangular flat plates of stable quality, economical efficiency and good productivity that conform to JIS standards and industry standards. Good flat circular roof and flat fan roof can be obtained.

  In FIG. 1A, La is the left end of the roll material 1, and Ra is the right end of the roll material 1. In the case of deep drawing progressive feeding with a breath stroke of a phosphor bronze plate having a diameter of 3 to 4 mm and a depth of about 20 to 30 mm, for example, a few mm from the left end La and a few mm from the right end Ra of the rolling roll material 1 are phosphor bronze. In most central parts of the roll material excluding La and Ra, which are several mm apart, problems such as a slight difference in deep drawability and a tendency to cause troubles such as slight cracks may occur. However, in the case of the embodiment of the present invention, bending from all directions, that is, not drawing, that the bending stroke is extremely slow due to roll forming, bending in only one direction that is sequentially bent according to the roll shape, and the like. As a result, there is provided an operation and effect that does not cause any trouble phenomenon in the deep drawing progressive feeding by the breath stroke of the phosphor bronze plate.

  In the embodiment of the present invention, in FIG. 1 (a), when the corner bending according to the embodiment of the present invention is applied to the left end La of the roll material 1 and the vicinity of the right end Ra of the roll material 1 by roll forming, There is an operation and effect that almost all corners of the roll material 1 are several mm from the left end La and several mm from the right end Ra. Even if the left end portion La and the right end portion Ra are provided with a return bent portion, deep drawing by the breath stroke of the phosphor bronze plate can be performed as long as the curled portion of the material according to the embodiment of the present invention is roll-formed. An operation and effect that does not cause any trouble in the progressive processing or the like is achieved. In the embodiment of the present invention, the upper and lower bases of the element trapezoidal flat plates P and Q are set to be opposite to each other, so that the rolling roll edge, the left end La, and the right end Ra have the same height and T1, T2 and It is possible to obtain trapezoidal flat plates P and Q having similar properties on both sides. It works and effects. As a result, when performing roll forming on the left end portion La and the right end portion Ra, it is only necessary to turn the front and back into a roll forming machine, and the quality is stable, and setup is changed, roll setting conditions are changed, and the like. The need for adjustment is reduced, the yield of the curling roll forming is improved, and the effect of improving the productivity is exhibited.

  In the embodiment of the present invention, in FIG. 1A, C1 is a small upper bottom PU of the element trapezoidal flat plate P, a large upper bottom PB of the element trapezoidal flat plate P, and a large lower bottom QU of the element trapezoidal flat plate Q. The sheet metal roll material is inclined at a small angle to the height direction sides T1, T2 of the element trapezoidal flat plate Q with respect to the small upper bottom QB, that is, the arrow A in the direction of the rolling roll of the sheet metal roll material. Is a cutting line formed by cutting a substantially straight line. The cutting line C1 forms a trapezoidal side H1 of the element trapezoidal flat plate P and a trapezoidal side H2 of the element trapezoidal flat plate Q.

  In the embodiment of the present invention, in FIG. 1A, the left end La and the right end Ra are parallel to the arrow A of the rolling direction of the roll of the sheet metal roll material. The cutting line C1 formed by cutting the sheet metal roll material into a substantially straight line so as to be oblique with a small angle with respect to the arrow A of the rolling direction of the rolling direction of the sheet metal roll material also has It is formed obliquely at a small angle so as to form a flat circular roof or flat fan-shaped roof, but is substantially parallel to the direction A of the rolling direction of the rolling roll of the sheet metal roll material. Here, since the internal crystal structure after the rolling of the sheet metal roll material also flows in the direction of the arrow A of the roll, the element trapezoidal flat plate P and the element trapezoidal flat plate are both cut at the time of cutting along the cutting line C1 and after cutting along the cutting line C1. An effect and an effect that warp and distortion hardly occur in Q are exhibited. The straightness of the small upper base PU, the large upper base PB, the large lower base QU, and the small lower base QB has an operation and an effect that is less likely to be out of order at the time of assembling than immediately after processing. At the time of assembling immediately after the processing, at the time of assembling, the flatness of the element trapezoidal flat plate P and the element trapezoidal flat plate Q is effectively prevented from being out of order.

  Further, in the embodiment of the present invention, the straightness of the small upper base PU, the large upper base PB, the large lower base QU, and the small upper base QB immediately after assembling are not correct after repeated application of a temperature change, a heat shock, a weather resistance change, and the like. Has a difficult action and effect. In the embodiment of the present invention, the flatness immediately after assembling the element trapezoidal flat plate P and the element trapezoidal flat plate Q exhibits an action and an effect that is hard to be deviated after repeated application of a temperature change, a heat shock, a weather resistance change and the like.

  The corner bending near the left end La by the roller bending in the direction perpendicular to the axis of the bending axis parallel to the direction of the roll arrow A, the in-plane direction perpendicular to the axis of the bending axis parallel to the direction of the roll arrow A. Bending in the vicinity of the right end Ra by the roller bending, and bending in the direction perpendicular to the axis of the bending axis parallel to the direction of the rolled arrow A near the trapezoidal side H1 of the element trapezoidal flat plate P. In addition, the curving by the roller bending in the in-plane direction perpendicular to the axis on the bending axis parallel to the direction of the rolled arrow A near the trapezoidal side H2 of the element trapezoidal flat plate Q has the effect of making the surface crack less likely to occur. It works.

  The corners of the element trapezoidal flat plates P, Q are trapezoidal sides H1, H2, T1, T2 by roller bending in an in-plane direction perpendicular to the axis of the bending axis parallel to the direction of the roll arrow A. Therefore, the flat-plate circular roof and the flat fan-shaped roof of the embodiment of the present invention exhibit the operations and effects described in paragraphs 0037 to 0053. The corners of the element trapezoidal flat plates P, Q are trapezoidal sides H1, H2, T1, T2 by roller bending in an in-plane direction perpendicular to the axis of the bending axis parallel to the direction of the roll arrow A. Therefore, the effects and effects described in paragraphs 0045, 0048, 0049, and 0053 are significantly exhibited.

  Next, an embodiment of an element trapezoidal flat plate having a flat circular roof and a flat fan roof according to the present invention will be described with reference to FIG. In FIG. 1B, M is a left element trapezoidal flat plate, N is a central element trapezoidal flat plate, and O is a right element trapezoidal flat plate. Lb is the left end of the roll material 1, and Rb is the right end of the roll material 1. MB is a large bottom of the element trapezoidal flat plate Q, and MU is a small upper bottom of the element trapezoidal flat plate M. NB is a large lower bottom of the element trapezoidal flat plate N, and NU is a small upper bottom of the element trapezoidal flat plate M. OB is a large lower bottom of the element trapezoidal flat plate O, and OU is a small upper bottom of the element trapezoidal flat plate O. T3 and T4 are heights with respect to the width of the rolling roll, as in FIG. For the element trapezoidal flat plate, a sum of integer multiples including at least one of the upper and lower bottom dimensions with respect to an integer multiple including at least one of the at least upper and lower base dimensions. The value is the approximate width of the roll material. In other words, the total b3 value of MU, OU, and NB is made equal to the rolling roll width in the direction of the rolling roll indicated by the double-headed arrow A, thereby eliminating waste of material. Further, the total value of the three values of MB, OB, and NU is set to match the roll width, thereby reducing waste of material.

  In one embodiment of the present invention, in FIG. 1B, C2 and C3 are height sides T3 with respect to the small upper base, the large upper base, the large lower base and the small lower base of the element trapezoidal flat plates M, N and O. , T4, that is, a cutting line formed by cutting the sheet metal roll material in a substantially straight line so as to be oblique at a small angle with respect to the arrow B of the rolling direction of the sheet metal roll material. The cutting lines C2 and C3 form a trapezoid of the element trapezoidal flat plate P.

  Next, an embodiment of the element trapezoidal flat plate of the flat circular roof and the flat fan roof of the present invention will be described with reference to the drawings as appropriate, with reference to FIG. In FIG. 1C, C5 is the sheet metal with respect to the height sides T5 and T6 with respect to the side parts Ww and Vw of the element square flat plates W and V, that is, the arrow C in the rolling direction of the sheet metal roll material. This is a cutting line formed by cutting the roll material into a substantially straight line. By the cutting line C5, the squares of the element square flat plates W and V are formed together with the left end Lc and the right end Rc of the roll material 1.

  In one embodiment of the present invention, the combination of the element trapezoidal flat plates P, Q, M, N, O and the element square flat plates W, V shown in FIGS. 1 (a), 1 (b), 1 (c) Due to the difference between the T1 to T5 dimensions and the upper and lower base dimensions of the trapezoidal flat plates P, Q, M, N, and O, a flat circular roof with a large curvature, a flat fan with a large curvature, and a flat plate with a small curvature It has the function and effect of assembling a circular roof, a flat-plate fan roof with a small curvature, a corrugated flat roof with a large curvature, and a corrugated flat roof with a small curvature.

  In one embodiment of the present invention, at the time of the assembly engagement described in paragraph 0081, one of the left end La, the side corresponding to the cutting line C1 (trapezoidal sides H1, H2), and the right end Ra in FIG. Engagement between the two, the left end Lb in FIG. 1 (b), any one of the sides corresponding to the cutting lines C2 and C3, and the right end Rb, the left end Lc in FIG. 1 (c), the cutting line At the time of engagement between any two of the C4 corresponding side and the right end Rc, a flat circular roof is obtained by performing the assembly engagement described in Japanese Patent No. 3749999 (JP-A-2003-247303). The flat fan-shaped roof and the corrugated flat roof have the functions and effects described in paragraphs 0037 to 0053.

  That is, in one embodiment of the present invention, the left end of the flat portion is provided with a left step portion, a left flat portion, an upright portion, a semi-triangular projecting portion, and a left upright portion in which a vertical portion and a horizontal portion are sequentially connected. A roof plate provided with a right step portion, a right flat portion, an upright portion, a semi-triangular projecting portion, a vertical portion, a flat portion and a hanging portion at the right end of the flat portion at the right end; A left turn is provided at the lower part of the inclined part, a left turn piece is continuously connected to the left turn part via the turn part, and a right turn is provided at the lower part of the right inclined part through the turn part at the right turn part. A right turn piece is provided, a gap is provided between the left turn piece and the right turn piece, and the left inclined part and the right inclined part are connected to each other. Provided at the lower end of the vertical portion and a suspension provided with a lower horizontal portion in the left direction. The lower horizontal part is fixed, the left upright part of the roof shingle is installed on the right side of the vertical part of the suspension, and the right upright part of the roof shingle is installed on the left side so as to be in close contact with the left upright part of the roof shingle. The right upright portion is wound and joined by the suspenders, and the cap is fitted to the joined portion to form the element trapezoidal flat plates P, Q, M, N, O, etc. and the element square flat plates W, V building. By the combination, the operation and effects described in paragraphs 0037 to 0053 are achieved as a flat circular roof, a flat fan roof, and a corrugated flat roof. It has the function and effect of particularly effectively preventing rainwater from entering by capillary action. Even in the event of an influx of water, by attaching a waterproof tape to the lower part, an effect and an effect of effectively preventing rainwater from entering can be obtained. And, as a flat circular roof, flat fan roof and corrugated flat roof, even if it has a gentle slope, flat flat roofs, flat fan roofs and corrugated flat roofs have curved surfaces with gentle curvature. Even so, there is an effect that can maintain good workability. The functions and effects described in paragraphs 0037 to 0053 and 0083 are exerted even on a roof such as a rooftop.

  1 is a schematic perspective view showing an entire flat circular roof and flat fan-shaped roof according to an embodiment of the present invention. With reference to FIG. 2, one embodiment of the flat circular roof and the flat fan-shaped roof of the present invention will be described. In FIG. 2, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, and 14 are large trapezoidal roof units. 2a, 3a, 4a, 5a, 6a, 7a, 13a, 14 are schematic perspective views for easily showing the trapezoidal roof units 2, 3, 4, 5, 6, 7, 13, 14, etc. This is behind each large trapezoidal roof unit.

  In FIG. 2, the trapezoidal roof units 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, and 14 of one embodiment of the flat circular roof and the flat fan roof of the present invention are as follows. Any one of the element trapezoidal flat plates P, Q, M, N, and O is arranged at least partially.

  In FIG. 2, as one embodiment of the flat circular roof and the flat fan roof of the present invention, the large trapezoidal roof unit 2 has an element trapezoid flat plate P, an element trapezoid flat plate Q, an element trapezoid flat plate M, or an element trapezoid flat plate at the left end. O, etc., and one or more element square flat plates W and V are arranged in the middle, and at the right end of the large trapezoidal roof unit 2, an element trapezoid flat plate P or an element trapezoid flat plate Q or an element trapezoid flat plate M Or an element trapezoidal flat plate O or the like is arranged. Here, when the element trapezoidal flat plate P or the right end La and the left end Ra of the element trapezoidal flat plate Q are arranged, the vertical surface of the roof of the large trapezoidal roof unit 2 and the building has a flat circular roof and a radius of the flat fan roof. Because it matches the direction exactly, it has the effect of improving the aesthetics of the roof and the building. Also in the large trapezoidal roof unit 5, when the left and right sides of the large trapezoidal roof unit 2 are replaced, the same functions and effects as those before the upper L8 of paragraph 0086 are obtained. Also, the functions and effects described in paragraphs 0037 to 0053 are exhibited.

  In FIG. 2, as one embodiment of the flat circular roof and the flat fan roof of the present invention, the large trapezoidal roof units 3 and 4 each have an element trapezoidal flat plate P, an element trapezoidal flat plate Q, an element trapezoidal flat plate M, or an element trapezoidal plate at the left end. A trapezoidal flat plate O or the like is arranged, one or more element square flat plates W and V are arranged in the middle, and an element trapezoidal flat plate P or an element trapezoidal flat plate Q, An element trapezoidal flat plate M or an element trapezoidal flat plate O is disposed. Then, the functions and effects described in paragraphs 0037 to 0053 are achieved.

  In FIG. 2, as one embodiment of the flat circular roof and the flat fan roof of the present invention, the large trapezoidal roof units 8, 9, 10, 11, 12, 13, 14, the large trapezoidal roof units 6, 7 are both paragraph 0084. The effects and advantages described in paragraphs 0037 to 0053 are exhibited in the same manner as the contents described in to 0087.

  In the embodiments described so far, the large upper base PB, the large lower base QU, the large lower base MB, the large lower base such as the element trapezoidal flat plate P or the element trapezoidal flat plate Q, the element trapezoidal flat plate M, or the element trapezoidal flat plate O are described. OB showed a linear embodiment. In these embodiments, a portion corresponding to the large upper bottom of the trapezoidal roof unit becomes straight in relation to the element square flat plates W, V, etc. other than the ends. Although the result is a multi-sided polygon, it is included in the definition of the flat circular roof and the flat fan roof of the present invention.

  In FIG. 2, as one embodiment of the present invention, a large upper base PB, a large lower base QU, a large lower base MB, such as an element trapezoidal flat plate P, an element trapezoidal flat plate Q, an element trapezoidal flat plate O, or the like. The lower bottom OB is made a gentle curve, and the sides corresponding to the lower bottom of the large trapezoidal roof units 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, and 14 are entirely formed. By making it a gentle curve, from a flat circular roof and a flat fan roof that includes multi-sided polygons in the definition, to a flat circular roof, a flat fan roof, and a corrugated flat roof consisting of strictly continuous curves, It has the effect and effect of obtaining the beauty of the image.

  Further, as another embodiment of the present invention, when producing the element trapezoidal flat plate P, the element trapezoidal flat plate Q, the element trapezoidal flat plate M, the element trapezoidal flat plate O, etc., efficiently cut and roll-form on a flat surface, Applying the means described in paragraph 0083, at the time of assembling and constructing, having a gentle curvature, assembling and constructing element trapezoidal flat plate P, element trapezoidal flat plate Q, element trapezoidal flat plate M, element trapezoidal flat plate O, etc. Rather than a flat circular roof, a fan-shaped roof, or a corrugated roof, the function and effect can be completed as a circular roof, a fan-shaped roof, and a corrugated roof having a gentle curvature as a result.

  The embodiments up to paragraph 0091 have been described in embodiments using the term roof. Here, the present invention has an operation and an effect as a side wall and a siding of a building as another embodiment of the present invention, except for only horizontal and vertical. Even if the roof is replaced with the side walls and siding of the building, all the actions and effects described can be achieved with the same means and configuration. In the present invention, even if the term roof is replaced with the side wall and siding of the building, all the operations and effects of the description can be achieved with the same means and configuration.

  FIG. 3 is a schematic overall perspective view of a step of forming a trap portion by roll forming of an element trapezoidal flat plate and an element square flat plate according to the embodiment of the present invention. In FIG. 3, 22 is a forming-side roll. The forming side rolls are arranged from the front left side in FIG. 3 to the back right side in the embodiment of the present invention, and the shape and position are changed little by little as shown in FIG. In the process of reaching the trapezoidal flat plates P1 and Q1 to the element trapezoidal flat plate P2 near the completion of the tapered portion and the element trapezoidal flat plate Q2 near the completion of the tapered portion, the tapered portion 21 is formed while being fed in the feed direction D substantially the same as the roll direction. Although the embodiment in which the forming-side roll 22 has 16 sets is shown in FIG. 3, it may be 17 sets or more or 15 sets or less depending on the thickness and material characteristics to be processed. Here, the element trapezoidal flat plates P1 and Q1 have been described as the element trapezoidal flat plate P2 near completion of the flute portion and the element trapezoidal flat plate Q2 near completion of the flute portion. The square plate p1, the element square plate q1, which has just been introduced, the element square plate p2 near completion of the cutting unit, and the element square plate q2 near completion of the cutting unit, are provided.

  In one embodiment of the present invention, the forming-side rolls 22 are gradually changed in shape and position, and are arranged on the forming-side rolls 22 from the forming-side rolls 22 at the lower left of the drawing to the rolls 22 at the upper right of the drawing. In the course of sending, the bending process is advanced in order, and the flute 21 is brought closer to completion.

  The element trapezoidal flat plates P1 and Q1 are almost completed, and the element trapezoidal flat plates P2 and the flattening portion are almost completed, while making the direction substantially the same as the direction of the rolling roll in the direction perpendicular to the width of the roll material substantially coincide with the feed direction D 1. An element trapezoidal flat plate Q2, an element square flat plate p1, an element square flat plate q1, which has just been introduced, an element square flat plate p2 near completion of the cutting unit, and an element square flat plate q2 near completion of the cutting unit are sent. Here, in the case of the element square flat plate p1, the element square flat plate q1, which has just been introduced, the element square flat plate p2 near the completion of the finishing unit, and the element square flat plate q2 near the completion of the finishing unit, the rolling direction of the roll and the feeding direction D match. In the case of the element trapezoidal flat plates P1 and Q1 and the element trapezoidal plate P2 near completion of the thin portion, and the element trapezoidal flat plate Q2 near completion of the thin portion, the right end La, the left ends Ra and Lb, and the left end Rb are connected to the forming roll 22 in FIG. Side, and when feeding in the feed direction D, the rolling direction of the rolls coincides with the feed direction D. When H1, H2, etc., corresponding to C1, C2, C3, which are cut slightly obliquely, are set on the forming-side roll 22 and sent, a small angle of H1, H2, etc., corresponding to C1, C2, C3 which is obliquely cut. Since the roll direction and the feed direction D do not coincide with each other, it is described that they substantially coincide.

  In one embodiment of the present invention, as shown in FIG. 3, an element trapezoidal flat plate P2 near the completion of the flute portion and an element trapezoidal flat plate Q2 near the completion of the flute portion constitute a series of forming-side rolls 22 and feed-side rolls 23 in FIG. Before the element trapezoidal flat plate P1 and the element trapezoidal plate Q1 that have just been thrown in can be continuously fed from the left side in FIG. 3 before coming out to the upper right, an operation and effect with very high productivity can be achieved. The processing of the lot can be completed before the characteristics of the forming-side roll 22 group and the feed-side roll 23 group are not changed, so that the operation and effect of stabilizing the quality can be achieved.

  In one embodiment of the present invention, as shown in FIG. 3, the roll direction of the rolling roll material, that is, the vertical height direction between the upper bottom and the lower bottom of the element trapezoidal flat plate is the same as the forming roll 22. Since the direction is substantially the same as the axis (the expression “abbreviated” is the same as the meaning of the coincidence between the rolling direction of the roll and the feed direction D in paragraph 0095), that is, it is parallel to the trapezoidal sides of the element trapezoidal flat plate. The element trapezoidal flat plate forming the bent portion of the element trapezoidal flat plate is formed by bending the compression-side inner bending R-axis (tensile-side bending R-axis) in a direction substantially perpendicular to the direction of the rolling roll. Therefore, the operations and effects described in paragraphs 0037 to 0053 are achieved.

  Next, referring to FIG. 4 which is a perspective view schematically showing the final step of the forming process of the element trapezoidal flat plate and the square quadrangular plate of the present invention by roll forming, the element trapezoidal flat plate of the present embodiment of the present invention will be described. Next, a process of finally forming the flat portion of the element square flat plate will be described. FIG. 4 is a view of the near side of FIG. 3 from the upper right position of FIG. That is, the left and right sides of FIG. 3 are reversed, and the direction of arrow D in FIG. 3 is the direction of arrow E in FIG. In the process of passing through the plurality of forming rollers 22 in FIG. 3, the deformation gradually progresses, and while moving continuously in the direction of arrow E, the final forming is settled by the forming roller 22z in FIG. P2, Q2, an element square plate p2, and an element square plate q2 are output. 23z is a feed-side roll disposed coaxially with the final forming roller 22z. The feed-side roll 23z, like the other feed-side rolls, restrains the element trapezoidal flat plates P2, Q2, the element square flat plate p2, and the element square flat plate q2 in the vertical direction, and also holds the element trapezoidal flat plates P2, Q2, and the element square flat plate p2. The operation and effect of continuously sending the element square flat plate q2 in the direction of arrow E is achieved. The plurality of forming rollers 22 and the forming rollers 22z shown in FIG. 3 have an operation and effect of obtaining a bent portion shape of a constant quality by a lower forming roller which forms an upper and lower pair with the forming roller 22z. Since the bending is in the direction perpendicular to the roll of the rolling roll, cracks are less likely to occur, and the finished product or semi-finished product is less likely to be warped or distorted.

  FIG. 5 is a perspective view showing a cutting process of the element trapezoidal flat plate and the element square flat plate according to one embodiment of the present invention. In FIG. 5, arrow F indicates the direction of the rolling roll, C5 indicates a cut portion, α indicates an element trapezoidal flat plate P, and β indicates an element trapezoidal flat plate Q. When α is the element trapezoidal flat plate M, β is the element trapezoidal flat plate N. When α is an element trapezoidal flat plate N, β is an element trapezoidal flat plate O. When α is the element square flat plate W, β is the element square flat plate V. In FIG. 5, while being constrained in the vertical direction by the right cylindrical roll, feeding is performed, and continuous cutting is performed by a cutter installed on the left side of the right cylindrical roll, and the cut portion C5 (C1, C2, C3, C4, etc.) ) Is formed. Here, in one embodiment of the present invention, the cut portion C5 (C1, C2, C3, C4, etc.) matches the roll direction or substantially matches the roll direction to a degree having a small angle. Warp or distortion occurs in semi-finished products such as the element trapezoidal flat plate P, the element trapezoidal flat plate Q, the element trapezoidal flat plate M, the element trapezoidal flat plate N, the element trapezoidal flat plate N, the element trapezoidal flat plate O, the element square flat plate W, and the element square flat plate V. It has an action and effect that is hardly generated. For this reason, after cutting, the skew can be sent less during the step of bending the bent portion described in paragraphs 0093 to 0098, and the operation and effect of improving the workability with accuracy and continuous bending can be achieved.

  As one embodiment of the present invention, the element square flat plate W, the element square flat plate V, etc. are produced by simultaneously processing the left and right curls by feeding the forming rolls arranged on the left and right by matching the roll direction. It has a function and effect that can enhance the performance. Either one of the trapezoidal sides of the element trapezoidal flat plate, or one of the sides of the element square flat plate, after forming a curved R portion roll, perform registration marks (in the opposite direction) to the element trapezoidal flat plate, The element trapezoidal flat plate having a trapezoidal side partly obliquely cut by forming the bent part R around the other side with respect to one of the sides of the element square plate or the water draining bent part R by roll forming. It has the function and effect of stably processing. By registering (inverting the top and bottom) and forming the other bent R portion by roll forming, that is, by forming the left and right bent R portions or the waterproof draining bent R portion by the same roll group. In addition, there is an effect that the processing can be stably performed without picking up variations in the apparatus.

  Steel plate, color steel plate, painted stainless steel plate, clad metal material, hot-dip aluminum plated steel plate, galvalume steel plate (registered trademark), aluminum-zinc alloy plated steel plate, fluoro steel plate, poly By arranging any one of a resin-coated steel plate such as a vinyl chloride resin, a pre-painted aluminum plate, a painted aluminum plate, a copper plate, and a zinc plate, the flat circular roof and the flat fan roof according to one embodiment of the present invention are provided. It is possible to obtain a thin and folded roof member having good corrosion resistance and durability, colorful appearance, good mass productivity, good drainage waterproofing property, and good workability. Further, there is an effect that the maintenance period span is extended. Also, the functions and effects described in paragraphs 0037 to 0047 are exhibited.

  The element trapezoidal flat plate, or the roof side of the element square flat plate, or by laminating a heat insulating material on one of the opposite side to the roof, the element trapezoidal flat plate and the flat plate, some of the element square flat plate flat fan By laminating the heat insulating material on either the roof side or the side opposite to the roof, the flat circular roof and the flat fan roof according to one embodiment of the present invention have a low specific heat of metal when a thin metal plate is adopted. The effect of suppressing the phenomenon that the temperature inside the element trapezoidal flat plate and the element square flat plate easily follows the vertical fluctuation of the outside air temperature due to the heat transfer property. As a result, the operation and effect of reducing the occurrence of dew condensation are achieved. In addition, the functions and effects described in paragraphs 0037 to 0047 are exerted thereon.

  In one embodiment of the present invention, a roll forming machine for processing part or all of the element trapezoidal flat plate, or the bent portion of the element square plate, or the waterproof drainer bent portion is brought near the roof construction site. By processing, the functions and effects described in paragraphs 0054 and 0055 are achieved.

  In one embodiment of the present invention, the roll direction of the rolling roll material is made to coincide with the vertical height direction between the upper base and the lower base of the element trapezoidal flat plate, and at least one side of the element trapezoidal flat plate is Cutting in which the sheet metal roll material is cut in a substantially straight line so as to be inclined at a small angle with respect to the vertical height direction between the upper bottom and the lower bottom, that is, with respect to the direction of the rolling roll of the sheet metal roll material. By bringing the machine near the roof construction site and cutting the element trapezoidal flat plate or the element square flat plate, the functions and effects described in paragraphs 0056, 0057, and 0058 are achieved.

  Further, in one embodiment of the present invention, as the material of the element trapezoidal flat plate and the element square flat plate, a coated stainless steel plate, a clad metal material, a galvanized steel plate, a galvalume steel plate (registered trademark), an aluminum-zinc alloy plated steel plate Fluorine steel plate, resin coated steel plate such as polyvinyl chloride resin, pre-painted aluminum plate, painted aluminum plate were subjected to weather test in the Kanto region. Also, the state where the rainwater leakage phenomenon does not occur is being updated.

    In one embodiment of the flat circular roof or the flat fan-shaped roof in which the heat insulating material is laminated on the element trapezoidal flat plate, the element square rectangular flat plate, or the like, 2 mm thick polyethylene foam is laminated as the heat insulating material T. As the polyethylene foam, a commercially available foam obtained by subjecting a polyethylene resin (LDPE, EVA) to a base and foaming and cross-linking is suitable for laminating as a heat insulating material for a roof. Originally, it is produced in block form, but after processing such as slicing, cutting, sticking, fusing, punching, bonding, and hot pressing, it hardly induces dew condensation even under the heat cycle of a sheet metal roof. It functions as a composite laminated member with good waterproofing and thin roof.

    In addition, in the flat circular roof or the flat fan roof according to the embodiment of the present invention, as a material of the element trapezoidal flat plate and the element square flat plate, a painted stainless steel plate, a clad metal material, a hot-dip aluminized steel plate, a galvalume steel plate (registered trademark) ), Aluminum-zinc alloy coated steel sheet, fluorine steel sheet, resin coated steel sheet such as polyvinyl chloride resin, pre-painted aluminum sheet, painted aluminum sheet were subjected to weather tests in the Kanto region, 8 years old sample, 11 years old Both the sample and the sample after 21 years are updating the state in which the rainwater leakage phenomenon does not occur.

  In one embodiment of the present invention, there are two types of polyethylene foam laminated on the heat insulating material T: a closed cell type that does not allow water and air to pass, and an open cell type that allows water and air to pass therethrough. A closed cell type that does not allow water and air to pass through is preferred. When the closed cell polyethylene foam is laminated on a metal folded sheet roof member, the cells are originally fine, flexible, resilient, excellent cushioning, heat insulation, levitation, weather resistance, chemical resistance, so heat insulation. In addition to being highly effective, when a worker is on top of the construction, or when the construction equipment, materials, tools, etc. are temporarily placed, the element trapezoidal flat plate and element square flat plate are subjected to vertical and horizontal stresses due to gravity etc. It has an elastically opposing action. As a result, it is possible to reduce the possibility of bending or leaving a history of bending when a worker climbs on the floor or temporarily places a construction device, a material, a tool, or the like at the time of construction. In addition, there is an effect that the waterproof effect is prevented from being reduced due to bending or a history of bending. Even if acid rain gets around from the rainy area, it functions as a durable, long-lived element trapezoidal flat plate and elemental rectangular flat plate. Adopting a closed-cell polyethylene foam having flame retardancy is advantageous in the event of a fire.

  In one embodiment of the present invention, as the element trapezoidal flat plate and the element square plate, a hot-rolled thin steel plate, a cold-rolled thin steel plate, a surface-treated thin steel plate [zinc-plated galvanized steel plate, tin-plated tin plating Steel plate (tin plate), tin-free steel treated with chromic acid, painted colored steel plate (painted steel plate, pre-coated steel plate), copper plate, zinc plate] were subjected to a weather test in the Kanto region, and the slate of the comparative example While the system roof, cracks, cracks and other rainwater leakage phenomena were detected multiple times in less than 20 years, for all the element trapezoidal flat plates and element square flat plates, when 30 years passed with the validity element test device However, no rainwater leakage phenomenon has been detected.

    In recent years, large earthquakes in Japan have caused heavy Japanese roof tiles to collapse and half-destroy houses and buildings with insufficient earthquake-resistant structures. Such damage is a concern even in earthquakes expected to occur in the future. Heavy roofs, such as slate roofs, place a heavy burden on houses and buildings in the event of a large earthquake. Here, it is possible to avoid these problems, to provide a highly durable, long maintenance span, for example, a thin metal folded sheet roof member that is made of a thin metal plate, and that is lightweight, strong, and waterproof. Great nature. In addition to the so-called roof of a building, the present invention can be applied to various types of side walls such as a large building, a small building, a traditional building, and a pillar. It can be applied to shining beauty side walls and sharp beauty side walls. Applicable to modern and modern buildings as well as traditional buildings. Here, in recent years, there is great industrial applicability as roofs for schools, gymnasiums, factories, public facilities, shopping centers, and the like.

1 Roll material P Element trapezoidal flat plate Q Element trapezoidal flat plate D Feed direction PU Small upper bottom PB of element trapezoidal flat plate P Large upper bottom QUA of element trapezoidal flat plate P Large lower bottom QB of element trapezoidal flat plate Q Small upper side of element trapezoidal flat plate Q Bottom 2 Large trapezoid roof unit 3 Large trapezoid roof unit 4 Large trapezoid roof unit 5 Large trapezoid roof unit 6 Large trapezoid roof unit 7 Large trapezoid roof unit 8 Large trapezoid roof unit 9 Large trapezoid roof unit 10 Large trapezoid roof unit 11 Large trapezoid roof Unit 12 Large trapezoidal roof unit 13 Large trapezoidal roof unit 14 Large trapezoidal roof unit 21 Reed part 22 Forming roll 23 Feeding roll P1 Element trapezoidal flat plate Q1 just put in Element trapezoidal flat plate P2 just put out Element trapezoidal part near completion Flat plate Q2 Element trapezoidal plate near completion

Claims (7)

When using at least one large element trapezoidal flat plate of any one of the upper and lower bottoms of a substantially trapezoid,
Either the upper bottom or the lower bottom of the substantially trapezoidal element trapezoidal flat plate,
In order to make the overall flat circular shape and the outer circular arc approximately the outer circumferential curvature of the entire flat fan shape roof member,
In the trapezoidal side of the at least one substantially trapezoidal element trapezoidal flat plate, a bendable portion bending structure having a water return waterproofing portion having one of a direction of an upper bottom and a lower bottom and a substantially vertical axis as a bending axis system. Forming
A connection is engaged at the trapezoidal side of the element trapezoidal flat plate,
Bending axis system near any one side of the axis of the element trapezoid flat plate and the direction of the upper bottom and the lower bottom and substantially vertical direction axis,
Using at least one of the smaller side of either the upper bottom or the lower bottom of the element trapezoid flat plate,
A roof having an inner circular arc with a curvature substantially equal to the inner circumference, the whole being the flat plate circular shape, the flat plate fan shape,
For the element trapezoidal flat plate, for at least an integral multiple including at least one of the upper and lower bottom dimensions,
While the total value of the integral multiples including at least one of the upper or lower bottom dimensions is substantially the width of the roll material,
The height direction of the element trapezoidal flat plate and the roll width direction of a direction perpendicular to the substantially width dimension of the roll material of the sheet metal roll material,
While moving the element trapezoidal plate in the roll direction of the rolling roll material, that is, in the vertical height direction between the upper and lower bottoms of the element trapezoidal plate,
At least one side of the element trapezoidal flat plate, the vertical height direction between the upper bottom and the lower bottom, i.e., with a small angle with respect to the rolling direction of the roll of the sheet metal roll material, Forming the sheet metal roll material by cutting it into a substantially straight line,
The element trapezoidal plate is formed by bending the cut element trapezoidal flat plate in a direction substantially perpendicular to the direction of the rolling rolls with a compression-side inward bending R-axis (tensile-side bending R-axis) parallel to the trapezoidal sides. A flat circular roof or a flat fan roof comprising the element trapezoidal flat plate forming the bent portion of the flat plate.     The bent portions provided on at least one of the trapezoidal sides of the at least one element trapezoidal flat plate and the bent portions provided on the sides of at least one of the element rectangular flat plates are engaged with each other. The flat-plate circular roof or the flat fan-shaped roof according to claim 1.     The flat part having a straight section in cross section is basically a straight part in which the bent part provided on the side of the element trapezoidal flat plate and the side of the element square flat plate is engaged with each other. The flat-plate circular roof or the flat fan-shaped roof according to claim 1. Around the trapezoidal sides of the element trapezoidal plate, or around the sides of the element square plate,
The flat round roof or the flat fan-shaped roof according to any one of claims 1 to 3, wherein the basic rounded bent portion having the straight section in cross section or the waterproof drained bent portion is roll-formed. . Either one of the trapezoidal sides of the element trapezoidal flat plate, or one of the sides of the element square flat plate,
After forming the bent R portion by roll forming, perform a registration mark (upside down), and form the element square in which the bent R portion around the other side with respect to one of the sides of the element trapezoidal flat plate and the element square flat plate is roll formed. The flat roof or flat fan roof according to claim 4, wherein the flat roof is a flat plate and the element is a rectangular flat plate. The element trapezoidal flat plate,
Steel plate, color steel plate, painted stainless steel plate, clad metal material, hot-dip aluminized steel plate, galvalume steel plate (registered trademark), aluminum-zinc alloy plated steel plate, fluorine steel plate, resin-coated steel plate such as polyvinyl chloride resin, pre-coating The flat-plate circular roof or the flat fan-shaped roof according to any one of claims 1 to 6, wherein any one material of an aluminum plate, a painted aluminum plate, a copper plate, and a zinc plate is provided.   The flat circular roof or the flat fan-shaped roof according to any one of claims 1 to 6, wherein a heat insulating material is laminated on one of a side of the element trapezoidal flat plate and a side opposite to the roof.