Roof structure
The roof structure simplifies the attachment of eaves materials by using a connecting member to support the base material on the folded plate, addressing installation complexity and preventing water leakage.
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- YKK AP INC
- Filing Date
- 2024-10-15
- Publication Date
- 2026-04-27
Smart Images

Figure 2026069868000001_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to a roof structure in which a folded plate is provided on the upper surface of a beam.
Background Art
[0002] Among roof structures applied to outdoor structures such as carports, there is one in which eaves materials such as ceiling panels are provided below the folded plate. That is, in this roof structure, a reinforcing material is disposed so as to span between the beams, and a base material is further disposed on the lower surface of the reinforcing material, and the eaves material is supported by the base material (see, for example, Patent Document 1).
Prior Art Documents
Patent Documents
[0003]
Patent Document 1
Summary of the Invention
Problems to be Solved by the Invention
[0004] By the way, the above-mentioned reinforcing material often has a dimension along the longitudinal direction set larger than the mutual interval of the beams, and the work of spanning the reinforcing material between the beams is not always easy. Moreover, in a state where a folded plate is provided on the upper surface of the beam, the above-mentioned work becomes more complicated, and there is a concern that the work of attaching the eaves material via the reinforcing material and the base material becomes difficult. In order to solve the above-mentioned problems, it is also conceivable to directly attach a base material to the lower surface of the lower wall portion of the folded plate to provide an eaves material. However, in this roof structure, there is a concern that holes for screwing screw members are provided in the lower wall portion of the folded plate, leading to a new problem of causing water leakage.
[0005] In view of the above circumstances, an object of the present invention is to provide a roof structure capable of facilitating the work of attaching an eaves material without causing water leakage from the folded plate.
Means for Solving the Problems
[0006] To achieve the above objective, the roof structure according to the present invention is a roof structure provided on the upper surface of a beam with a folded plate having an upper wall portion, an inclined wall portion, and a lower wall portion arranged in sequence, wherein a connecting member is attached to the upper wall portion or the inclined wall portion of the folded plate, and a soffit material is supported by the connecting member via a base material. [Effects of the Invention]
[0007] According to the present invention, since the base material is attached directly to the corrugated sheet metal via a connecting member, it is possible to attach the soffit material without providing reinforcing materials. Moreover, since the connecting member is attached to the upper wall or inclined wall portion of the corrugated sheet metal, there is no risk of water leakage from the corrugated sheet metal. [Brief explanation of the drawing]
[0008] [Figure 1] This is a perspective view from above of a carport to which a roof structure according to an embodiment of the present invention is applied. [Figure 2] Figure 1 is a partially broken perspective view of the carport, seen from below. [Figure 3] Figure 1 is a top-down perspective view of the carport shown in Figure 1, with the corrugated metal sheets, underlayment, and soffit materials omitted. [Figure 4] This is a longitudinal cross-sectional view showing the main parts of the carport shown in Figure 1. [Figure 5] This figure shows the connection between the corrugated metal sheet and the base material in the carport shown in Figure 1. [Figure 6] Figure 1 shows the connecting members applicable to the carport shown in Figure 1, with (a) being a side view and (b) being an unfolded view. [Figure 7] This diagram shows the connection state between the corrugated sheet metal and the underlayment of a roof structure, which is a modified example 1 of the present invention. [Figure 8] This is a cross-sectional view along line AA in Figure 7. [Figure 9] This diagram shows the connection state between the corrugated sheet metal and the underlayment of a roof structure, which is a modified example 2 of the present invention. [Figure 10]Figure 9 is a cross-sectional view along line BB. [Modes for carrying out the invention]
[0009] Hereinafter, preferred embodiments of the roof structure according to the present invention will be described in detail with reference to the attached drawings.
[0010] Figures 1 to 5 show a carport, an outdoor structure to which an embodiment of the present invention's roof structure is applied. The carport illustrated here is, for example, rectangular in shape and installed in a flat parking space, and has a roof structure 1 on top of four columns 10. The columns 10 are formed from a metal such as an aluminum alloy and are configured, for example, in the shape of a square tube. In the illustrated example, two columns 10 are erected on each side edge of the parking space. The projection dimensions of each column 10 from the ground are approximately equal to each other. Note that the cross-section of the columns 10 does not necessarily have to be square. The roof structure 1 is composed of beams 20, corrugated sheets 30, underlayment 40, and soffit material 50.
[0011] The beams 20 are constructed from a metal such as an aluminum alloy, with a rectangular cross-section forming a cylindrical shape. The two beams 20 have their upper and lower surfaces extending horizontally, and their two sides extending vertically. Although not explicitly shown in the diagram, the two beams 20 are configured to be at different heights. The beams 20 having the above configuration are installed by being stretched approximately horizontally between the upper ends of the two columns 10.
[0012] The corrugated sheet 30 is a surface material provided with an upper wall portion 30a, an inclined wall portion 30b, and a lower wall portion 30c arranged in a continuous manner, and is formed from metal such as plated steel sheet. The length and width dimensions of the corrugated sheet 30 are set to a size that can almost completely cover the parking space. The corrugated sheet 30 is supported on the upper surface of each beam 20 via a tight frame 31. More specifically, the corrugated sheet 30 is supported on the upper surface of the beam 20 such that the curved lines between the upper wall portion 30a and the inclined wall portion 30b, and the curved lines between the lower wall portion 30c and the inclined wall portion 30b, are perpendicular to the extending direction of the beam 20. The tight frame 31 is a narrow member formed with an upper plate portion 31a, an inclined plate portion 31b, and a lower plate portion 31c arranged in a continuous manner so that it can be superimposed on the upper surface of the corrugated sheet 30, and is arranged along the longitudinal side of the beam 20. The tight frame 31 and the corrugated sheet 30 are connected by, for example, inserting a screw member 31d provided on the tight frame 31 into the upper wall portion 30a of the corrugated sheet 30 and then screwing a nut member 32 onto the screw member 31d. As described above, the two beams 20 are configured to be of different heights. Therefore, the corrugated sheet 30, which is laid across the two beams 20, is arranged in a sloping manner, gradually decreasing in height from the taller beam 20 to the shorter beam 20. The four perimeter ends of the corrugated sheet 30 are each covered with fascia boards 33.
[0013] The base material 40 is a long member having a rectangular cylindrical base body portion 40a and a mounting plate portion 40b extending along the upper surface from one upper corner of the base body portion 40a. Multiple of these base materials 40 are attached to the underside of the corrugated sheet 30 via connecting members 60 along the longitudinal direction of the beam 20. As shown in Figure 6, the connecting member 60 has a flat plate-shaped inclined surface portion 60a and a flat plate-shaped horizontal surface portion 60b connected to one side edge of the inclined surface portion 60a. The inclined surface portion 60a is provided such that when the horizontal surface portion 60b is positioned horizontally, it has the same inclination angle as the inclined wall portion 30b of the corrugated sheet 30. The inclined surface portion 60a is provided with two screw insertion holes 60c, and the horizontal surface portion 60b is provided with one screw hole 60d. The connecting member 60 is attached to the corrugated sheet 30 by overlapping the inclined surface portion 60a with the lower surface of the inclined wall portion 30b, and then screwing the screw member (fixing device) 61 into the inclined wall portion 30b through the screw insertion hole 60c of the inclined surface portion 60a, so that the horizontal surface portion 60b is horizontal slightly below the lower wall portion 30c. As is clear from Figure 5, it is not necessary to provide connecting members 60 on all inclined wall portions 30b of the corrugated sheet 30, but it is sufficient to provide connecting members 60 at multiple positions with appropriate spacing between them. In this case, it is not necessary to provide connecting members 60 on inclined wall portions 30b that are inclined in the same direction, and they may be provided on inclined wall portions 30b that are inclined in opposite directions. For the connecting member 60 attached to the corrugated sheet 30, the mounting plate portion 40b is placed on top of the lower surface of the horizontal portion 60b, and from this state, the screw member (fixing device) 62 is screwed into the screw hole 60d of the horizontal portion 60b via the mounting plate portion 40b, thereby enabling the base material 40 to be attached.
[0014] As shown in Figures 2 and 4, the soffit material 50 is configured to be in the shape of a plate. This soffit material 50 is attached to the base material 40 by screwing in a screw member 63 while it is overlapping the lower surface of the base body portion 40a. In this embodiment, multiple soffit materials 50 are arranged side by side on the lower surface of the base material 40 so as to cover the entire lower area of the corrugated sheet 30. As is clear from the figures, in this embodiment, each soffit material 50 is arranged so that its length is perpendicular to the length of the base material 40.
[0015] In the carport configured as described above, as shown in FIGS. 1 and 2, the lower surface of the roof structure 1 is covered by the eaves board 50. Therefore, it becomes difficult to visually recognize the folded plate 30 from below, which is advantageous in terms of appearance quality. Moreover, since the base material 40 is directly attached to the folded plate 30 via the connecting member 60, it is possible to attach the eaves board 50 without the need for the complicated operation of providing a reinforcing material between the beams 20. Further, a screw member 61 for attaching the connecting member 60 to the folded plate 30 is provided on the inclined wall portion 30b above the lower wall portion 30c. Therefore, even when water such as rainwater is stored on the upper surface of the folded plate 30, there is no immediate risk of causing water leakage.
[0016] In the above-described embodiment, the connecting member 60 is attached to the inclined wall portion 30b of the folded plate 30, but the connecting member can also be attached to the upper wall portion. For example, in Modified Example 1 shown in FIGS. 7 and 8 and Modified Example 2 shown in FIGS. 9 and 10, in both cases, the base material 40 is supported by the connecting members 160 and 260 attached to the upper wall portion 30a of the folded plate 30.
[0017] That is, the connecting member 160 of Modification 1 shown in FIGS. 7 and 8 is configured to have a rectangular cross-sectional tubular shape. The width of the connecting member 160 is set to a dimension that can abut against the lower surface of the upper wall portion 30a. At the upper end portion of the connecting member 160, flange portions (upper connecting plate portions) 160a project on both sides along the extending direction of the rectangular tube. This connecting member 160 overlays the upper surface and the flange portion 160a on the lower surface of the upper wall portion 30a, and in this state, a screw member (fastener) 161 is screwed into the upper wall portion 30a through the flange portion 160a, so that it is maintained in a state where the lower surface is horizontal slightly below the lower wall portion 30c and is attached to the folding plate 30. With respect to the connecting member 160 attached to the folding plate 30, the mounting plate portion 40b is overlaid on the lower surface, and in this state, a screw member (fastener) 162 is screwed into the lower surface portion (lower connecting plate portion) 160b through the mounting plate portion 40b, whereby the base material 40 can be attached. Although not shown in the figure, with respect to the base material 40, if a screw member is screwed in a state where the eaves top material 50 is overlaid on the lower surface of the base main body portion 40a, the eaves top material 50 can be attached.
[0018] In the carport to which the connecting member 160 of Modification 1 is applied, the lower surface of the roof structure 1 is covered with the eaves top material 50. Therefore, it becomes difficult to visually recognize the folding plate 30 from below, which is advantageous in terms of appearance quality. Moreover, since the base material 40 is directly attached to the folding plate 30 via the connecting member 160, it is possible to attach the eaves top material 50 without requiring a complicated operation of providing a reinforcing member between the beams 20. Further, since the screw member 161 for attaching the connecting member 160 to the folding plate 30 is provided on the upper wall portion 30a, there is no risk of immediately causing water leakage even when water such as rainwater is stored on the upper surface of the folding plate 30.
[0019] The connecting member 260 of the modified example 2 shown in Figures 9 and 10 has side plate portions 260b on both side edges of the base portion (lower connecting plate portion) 260a. The upper edge of the side plate portion 260b is provided with flange portions (upper connecting plate portion) 260c that extend horizontally in directions away from each other. This connecting member 260 is attached to the corrugated sheet 30 by overlapping the two flange portions 260c on the lower surface of the upper wall portion 30a and then screwing a screw member (fixing device) 261 into the upper wall portion 30a via the flange portions 260c, so that the lower surface is horizontal slightly below the lower wall portion 30c. The connecting member 260 attached to the corrugated sheet 30 can be fitted with a base material 40 by overlapping the mounting plate portion 40b on the lower surface and then screwing a screw member (fixing device) 262 into the lower surface via the mounting plate portion 40b. Although not explicitly shown in the diagram, the soffit material 50 can be attached to the base material 40 by screwing the screw member into the base material 40 while the soffit material 50 is overlapped with the lower surface of the base body 40a.
[0020] In a carport to which the connecting member 260 of Modified Example 2 is applied, the underside of the roof structure 1 is covered by the soffit material 50. Therefore, it becomes difficult to see the corrugated metal 30 from below, which is advantageous in terms of appearance quality. Moreover, since the base material 40 is attached directly to the corrugated metal 30 via the connecting member 260, it is possible to attach the soffit material 50 without the complicated work of providing reinforcing materials between the beams 20. Furthermore, since screw members 261 for attaching the connecting member 260 to the corrugated metal 30 are provided on the upper wall portion 30a, there is no immediate risk of water leakage even if rainwater or other water accumulates on the upper surface of the corrugated metal 30.
[0021] In the embodiment described above, a roof structure applied to a carport is shown as an example, but it can also be applied to other roof structures. In this case, the number of beams does not necessarily have to be two; there may be three or more beams.
[0022] As described above, the roof structure according to the present invention is a roof structure that has a folded plate on the upper surface of a beam, in which an upper wall portion, an inclined wall portion, and a lower wall portion are sequentially provided, wherein a connecting member is attached to the upper wall portion or the inclined wall portion of the folded plate, and a soffit material is supported by the connecting member via a base material. According to this invention, since the base material is attached directly to the corrugated sheet metal via a connecting member, it is possible to attach the soffit material without providing reinforcing materials. Moreover, since the connecting member is attached to the upper wall or inclined wall portion of the corrugated sheet metal, there is no risk of water leakage from the corrugated sheet metal.
[0023] Furthermore, the present invention is characterized in that, in the roof structure described above, the connecting member is attached to the inclined wall portion. According to this invention, a connecting member is attached to the corrugated sheet metal via an inclined wall section.
[0024] Furthermore, the present invention is characterized in that, in the roof structure described above, the connecting member has an inclined surface portion connected to the inclined wall portion and a horizontal surface portion connected to the upper surface of the base material. This invention is advantageous in terms of manufacturing costs because it uses a simple shape as a connecting member.
[0025] Furthermore, the present invention is characterized in that, in the roof structure described above, the base material has a flat mounting plate portion, is connected to the connecting member by attaching a fastener to the horizontal surface portion via the mounting plate portion, and the connecting member is connected to the corrugated plate by attaching a fastener to the inclined wall portion via the inclined surface portion. According to this invention, it is possible to attach a base material to a corrugated sheet by using a fastener.
[0026] Furthermore, the present invention is characterized in that, in the roof structure described above, the connecting member is attached to the upper wall portion. According to this invention, a connecting member is attached to the corrugated sheet metal via the upper wall portion.
[0027] Furthermore, the present invention is characterized in that, in the roof structure described above, the connecting member has an upper connecting plate portion connected to the upper wall portion and a lower connecting plate portion connected to the upper surface of the base material. This invention is advantageous in terms of manufacturing costs because it uses a simple shape as a connecting member.
[0028] Furthermore, the present invention is characterized in that, in the roof structure described above, the base material has a flat mounting plate portion, is connected to the connecting member by attaching a fastener to the lower connecting plate portion via the mounting plate portion, and the connecting member is connected to the corrugated plate by attaching a fastener to the upper wall portion via the upper connecting plate portion. According to this invention, it is possible to attach a base material to a corrugated sheet by using a fastener. [Explanation of symbols]
[0029] 1 Roof structure, 20 beam, 30 folded plate, 30a upper wall, 30b inclined wall, 30c lower wall, 40 base material, 40b mounting plate, 50 eaves ceiling material, 60,160,260 connecting member, 60a inclined surface, 60b horizontal surface, 61,161,261 Screw member, 62,162,262 Screw member, 160a,260c flange part, 160b bottom part, 260a board part
Claims
1. A roof structure having a folded plate on the upper surface of a beam, in which an upper wall section, an inclined wall section, and a lower wall section are sequentially provided in a continuous manner, A roof structure characterized in that a connecting member is attached to the upper wall portion or the inclined wall portion of the corrugated sheet, and the soffit material is supported by the connecting member via a base material.
2. The roof structure according to claim 1, characterized in that the connecting member is attached to the inclined wall portion.
3. The roof structure according to claim 2, characterized in that the connecting member has an inclined surface portion connected to the inclined wall portion and a horizontal surface portion connected to the upper surface of the base material.
4. The base material has a flat mounting plate portion, and is connected to the connecting member by attaching a fastener to the horizontal surface via the mounting plate portion. The roof structure according to claim 3, characterized in that the connecting member is connected to the corrugated plate by attaching a fastener to the inclined wall portion via the inclined surface portion.
5. The roof structure according to claim 1, characterized in that the connecting member is attached to the upper wall portion.
6. The roof structure according to claim 5, characterized in that the connecting member has an upper connecting plate portion connected to the upper wall portion and a lower connecting plate portion connected to the upper surface of the base material.
7. The base material has a flat mounting plate portion, and is connected to the connecting member by attaching a fastener to the lower connecting plate portion via the mounting plate portion. The roof structure according to claim 6, characterized in that the connecting member is connected to the corrugated plate by attaching a fastener to the upper wall portion via the upper connecting plate portion.
Citation Information
Patent Citations
Ceiling structure and ceiling installing method
JP2017179846A