Roof structure for parking space

Abstract

To prevent rainwater leakage in a roof structure for a parking space in which panel members are arranged.SOLUTION: A roof structure for a parking space includes: a skeleton having a plurality of purlin materials (301) provided to be parallel or substantially parallel to each other and a plurality of rafter materials (302) extending in a direction crossing the purlin materials and being sloped downward to a horizontal direction; a plurality of panel members (303) supported by at least the plurality of rafter materials of the skeleton and covering an upper part of a parking space (PS). A rainwater receiving member (310) is provided between each rafter material and panel member. Thus, rainwater containing rainwater entering through the plurality of panel members is drained by the plurality of rainwater receiving members (310).SELECTED DRAWING: Figure 6A

Description

[Technical Field]

[0001] The present invention relates to a roof structure for a parking lot. [Background technology]

[0002] As shown in Figures 10 to 12, one example of a conventional roof structure for a parking lot is a roof structure consisting of a plurality of purlins 301, a plurality of rafters 302 intersecting these purlins 301, and panel members 303 that are rectangular in plan view and supported by these rafters 302. This type of roof structure is supported by a plurality of supports 20 erected on foundations 10 formed underground in the parking space PS, so that it is inclined relative to the horizontal in a direction intersecting the purlins 301, i.e., in the extension direction of the rafters 302. Rainwater that falls on panel members 303 is collected in horizontal gutters 41 installed on the downward sloping side and drained through connecting gutters 42 and vertical gutters 43 connected to horizontal gutters 41.

[0003] For example, in a conventional roof structure where the panel member 303 is composed of a solar panel body 303a and a frame 303b, the frame 303b is fixed to the upper surface of the rafter 302 with bolts 307 and nuts 308, and waterproofing is ensured by interposing, for example, rubber gaskets 304, 305 between the panel members 303 arranged vertically and horizontally. Summary of the Invention [Problem to be solved by the invention]

[0004] However, as shown in Figures 11 and 12, at the points where gaskets 304 and 305 intersect with each other, one of the gaskets (in Figures 11 and 12, gasket 305 arranged in a direction intersecting with rafter 302) is discontinued, which can allow rainwater to seep in through the gaps between the gaskets at such intersections, causing leaks.

[0005] The present invention aims to prevent rain leakage in a roof structure for a parking lot in which panel members are arranged. [Means for solving the problem]

[0006] In order to achieve the above-mentioned object, the roof structure for a parking lot of the present invention comprises a framework having a plurality of purlins arranged parallel or approximately parallel to each other, and a plurality of rafters extending in a direction intersecting the plurality of purlins and sloping downward relative to the horizontal direction, a plurality of panel members of the framework supported by at least the plurality of rafters and covering the top of the parking space, and a plurality of rainwater receiving members arranged between each of the rafters and the panel members to receive and drain rainwater including rainwater that has seeped in between the plurality of panel members.

[0007] By providing a rainwater receiving member between each rafter and panel member, rainwater that seeps in between the panel members is drained by this rainwater receiving member.

[0008] In one example configuration of the roof structure for a parking lot described above, the rainwater receiving member may be formed to have a mounting portion that extends along each of the multiple rafters and is placed on the rafter, and a flow path forming portion that is formed integrally with the mounting portion and forms a flow path for rainwater along the rafter on at least one side of the rafter when placed on the rafter.

[0009] In one configuration example of the roof structure for a parking lot described above, the flow path forming portion may be provided on both sides of the rafter.

[0010] Furthermore, in one example of the above-mentioned roof structure for a parking lot, the panel members may be arranged above each of the flow path forming portions provided on both sides of the rafters.

[0011] In addition, in the above-mentioned roof structure for a parking lot, the panel member is arranged only on the upper side of one of the flow path forming portions provided on both sides of the rafter, and this panel member may be a panel member arranged at the horizontal end of a plurality of the panel members arranged side by side in the horizontal direction.

[0012] In the above-described example of the roof structure for a parking lot, an edge of the flow path forming portion along the longitudinal direction of the rainwater receiving member may be folded back toward the storage portion, thereby preventing rainwater from leaking out from the edge of the flow path forming portion to the outside by the folded back portion toward the storage portion.

[0013] In addition, in one example configuration of the roof structure for a parking lot described above, the rainwater receiving member arranged between the rafter and the panel member may be fastened to the panel member and the rafter by a fastening member that fixes the panel member to the rafter.

[0014] In addition, in one example configuration of the roof structure for a parking lot described above, the panel member further comprises a panel body and a frame provided on the peripheral edge of the panel body and supporting the panel body, and the rainwater receiving member is arranged between the rafter and the frame, and the rainwater receiving member is fastened to the frame and the rafter by fastening members that fix the frame to the rafter.

[0015] In addition, in one example configuration of the roof structure for a parking lot described above, the structure may further include a horizontal gutter extending in a direction intersecting the plurality of rafters at one end side of the downward sloping side of the plurality of rafters, and receiving rainwater flowing down from the rainwater receiving members provided on each of the plurality of rafters.

[0016] In addition, in one configuration example of the roof structure for a parking lot described above, at least some of the panel members among the plurality of panel members may be solar panels for solar power generation. [Effects of the Invention]

[0017] According to the present invention, rainwater that seeps in between multiple panel members is drained by the rainwater receiving member, thereby preventing rain leaks in a roof structure for a parking lot in which panel members are arranged. [Brief explanation of the drawings]

[0018] [Figure 1] FIG. 1 is a side view of a roof structure for a parking lot according to an embodiment of the present invention. [Figure 2] FIG. 2 is a perspective view of the roof structure for a parking lot according to the embodiment shown in FIG. [Figure 3] FIG. 3 is a diagram showing one configuration example of a panel member, and is a diagram showing a schematic view of a solar panel installed on rafters as viewed from below. [Figure 4] 4 is a front cross-sectional view showing the configuration of a portion of the panel member of FIG. [Figure 5] FIG. 5 is a diagram showing the configuration of the frame of the panel member of FIG. [Figure 6A] FIG. 6A is an enlarged view of part (VI) of FIG. 2, and is a perspective view illustrating the relationship between the rafters, the rainwater receiving member, and the panel member, and shows the horizontal gutter with a dashed line. [Figure 6B] FIG. 6B is a front view illustrating the relationship between the rafters, the rainwater receiving member, and the panel member in the embodiment of the present invention. [Figure 7A] FIG. 7A is a perspective view showing an example of a configuration of a rainwater receiving member. [Figure 7B] FIG. 7B is a front cross-sectional view showing the rainwater receiving member of FIG. 7A. [Figure 8] FIG. 8 is a front view showing a rainwater receiving member disposed in a different position from those in FIGS. 6A and 6B in a roof structure for a parking lot according to an embodiment of the present invention. [Figure 9A] FIG. 9A is a front view showing a first modified example of the rainwater receiving member. [Figure 9B] FIG. 9B is a front view showing a second modified example of the rainwater receiving member. [Figure 9C] FIG. 9C is a front view showing a third modified example of the rainwater receiving member. [Figure 9D] FIG. 9D is a front view showing a fourth modified example of the rainwater receiving member. [Figure 10]FIG. 10 is a perspective view for explaining a conventional roof structure for a parking lot. [Figure 11] FIG. 11 is an enlarged view of a part (XI) of FIG. [Figure 12] FIG. 12 is a front view illustrating a part of a conventional roof structure for a parking lot. DETAILED DESCRIPTION OF THE INVENTION

[0019] Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

[0020] 1 to 8 are diagrams illustrating a roof structure according to an embodiment of the present invention. 1 and 2, the roof structure for a parking lot according to this embodiment is supported by a plurality of posts 20 erected on foundations 10 formed underground in the parking space PS, and comprises a framework having a plurality of purlins 301 arranged parallel or approximately parallel to one another, and a plurality of rafters 302 extending in a direction intersecting the purlins 301 and sloping downward relative to the horizontal. From the standpoint of lightweight and corrosion resistance, the purlins 301 and rafters 302 can be made of, for example, aluminum or aluminum alloy H-bars or T-bars formed by extrusion.

[0021] Of this framework, a plurality of panel members 303 arranged vertically and horizontally and supported by at least a plurality of rafters 302 cover the upper part of the parking space PS. In this embodiment, each panel member 303 is arranged between two adjacent rafters 302 in a plan view, and three panel members 303 are arranged in the longitudinal direction of the purlin member 301.

[0022] In this embodiment, the panel member 303 is formed into a rectangular shape in a plan view. At least some of the multiple panel members 303 are solar panels for solar power generation. However, in the drawings, all of the panel members 303 are solar panels. A solar panel is a plate-shaped member in which multiple semiconductor elements (solar cells) that convert light energy into electrical energy are arranged, and is sometimes called a "module."

[0023] As an example of the panel member 303, a configuration example of a solar panel is shown in FIGS. Fig. 3 is a diagram showing the solar panel as viewed from the back (the underside when installed on rafters). As shown in Fig. 3, the solar panel that becomes panel member 303 includes solar panel main body 303a that is rectangular in plan view, frames 303b attached to the four edges of solar panel main body 303a, elongated mounting holes 303bc provided in two of the four frames 303b that are parallel to rafters 302, a pair of terminal boxes 303d provided on solar panel main body 303a to extract power generated by the solar panel main body, a pair of output cables 303e each connected at one end to terminal boxes 303d, and output connectors 303f connected at the other end of each output cable 303e.

[0024] Fig. 4 is a diagram showing the configuration of a portion of panel member 303 of Fig. 3, specifically a front cross-sectional view taken along line IV-IV of Fig. 3. In this embodiment, solar panel body 303a is made up of solar cell 303ab, cover glass 303ac provided on one side of solar cell 303ab, and back film 303aa provided on the other side of solar cell 303ab, as shown in Fig. 4, and frame 303b is attached to each of the four edges via filler 303c.

[0025] Furthermore, the frame 303b is made of a metal material such as aluminum or an aluminum alloy to provide sufficient strength and corrosion resistance to support the panel. Figure 5 shows one configuration of the frame 303b attached to the edge of the solar panel body 303a, and is depicted upside down compared to Figure 4. As shown in Figure 5, the frame 303b has a leg 303bb with a substantially L-shaped cross section perpendicular to the longitudinal direction, and a panel receiving part 303ba connected to the leg, having a substantially U-shaped cross section and gripping the edge of the solar panel body 303a. The elongated hole 303bc for attaching the panel member 303 to the rafter 302 is formed in the leg 303bb in a portion substantially parallel to the solar panel body 303a.

[0026] As such, the panel member 303 in the roof structure of this embodiment has a frame 303b fixed to the rafters 302 with bolts 307 and nuts 308, as shown in Figures 6A and 6B, and the solar panel body 303a is supported by the frame 303b.

[0027] On the other hand, on the downward sloping side of the roof structure, a horizontal gutter 41 is provided in the width direction of the roof structure, attached to the end of the rafter 302 via the mounting member 40 shown in Figure 1. One end of a connecting gutter 42 is connected to this horizontal gutter 41, and the other end of the connecting gutter 42 is connected to a vertical gutter 43.

[0028] In the roof structural body according to this embodiment, a rainwater receiving member 310 is further provided between the rafter timber 302 and the panel member 303, as shown in FIGS. 6A and 6B.

[0029] Here, rainwater receiving member 310 is a member extending along rafter 302. As shown in FIGS. 7A and 7B, rainwater receiving member 310 has a flat mounting portion 310b that is placed on the upper surface of rafter 302, and flow path forming portions 310a provided on both sides of mounting portion 310b. Of these, flow path forming portion 310a is a portion that forms a flow path that serves as a drainage channel for rainwater. In this embodiment, flow path forming portion 310a is a V-groove whose cross section perpendicular to the longitudinal direction of rainwater receiving member 310 is approximately V-shaped. Furthermore, mounting portion 310b is formed with hole 310c through which the shaft of bolt 307, which serves as a fastening member, is inserted.

[0030] The rainwater receiving member 310 receives rainwater that has seeped in between two adjacent panel members 303 above the rafters 302 in a direction intersecting the rafters 302 (horizontally) and rainwater that has fallen directly onto the rainwater receiving member 310, and drains it through the flow path formed by the flow path forming portion 310a. The rainwater receiving member 310 having such a flow path forming portion 310a can be formed by bending a metal plate such as a Galvalume steel plate (registered trademark). The rainwater receiving member 310 may also be formed by extrusion molding of aluminum, an aluminum alloy, or a resin.

[0031] In this embodiment, rainwater receiving members 310 are provided along the rafters 302 between the rafters 302 and the panel members 303. As shown in FIG. 6B , a pair of panel members 303 are placed on both sides of the rafters 302, as viewed along the length of the rafters 302, except for the rafters 302 at both lateral ends of the roof structure. The panel members 303 are fastened to the rafters 302 with bolts 307 and nuts 308 for attaching the panels. The rainwater receiving members 310 are fastened together to the panel members 303 and the rafters 302, more specifically, to the frames 303b of the panel members 303 and the rafters 302, with the bolts 307 and nuts 308 serving as fastening members for attaching the panels. In this case, the rainwater receiving members 310 form flow path forming portions 310a below each panel member 303.

[0032] Focusing on the rafters 302 at both lateral ends of the roof structure, panel members 303 are placed on only one side of the rafters 302 and fastened with panel mounting bolts 307 and nuts 308. In this case, it is desirable that the rainwater receiving member 310 has a flow path forming portion 310a formed at least below the panel member 303. The flow path forming portion 310a may be formed on only one side of the mounting portion 310b that is placed on the rafters 302, but as shown in Figure 8, the flow path forming portion 310a may also be formed on both sides of the mounting portion 310b.

[0033] In this way, for the rafters 302 at both lateral ends of the roof structure, rainwater receiving members 310 having the same configuration as the rainwater receiving members 310 placed on the other rafters 302, i.e., a configuration with flow channel portions 310a on both sides of the mounting portion 310b along the longitudinal direction, can be used for all rainwater receiving members 310, thereby reducing the number of parts and reducing costs. Furthermore, among the multiple horizontally arranged panel members 303, the panel member 303 located at the horizontal end is located above only one of the flow channel portions 310a provided on both sides of the mounting portion 310b. As shown in Figure 8, even if no panel member 303 is located above the other flow channel portion 310a, this other flow channel portion 310a can prevent rainwater from falling from the horizontal end of the roof structure.

[0034] In the roof structure according to this embodiment, as shown in Fig. 2, among the joints between panel members 303 arranged vertically and horizontally, rubber gaskets 305 are inserted in the horizontal joints that intersect with the rafters 302. On the other hand, it is not necessary to insert gaskets in the vertical joints that run along the rafters 302. Therefore, in the roof structure according to this embodiment, the gaskets do not intersect with each other, so the gaskets 305 provided in the direction that intersects with the rafters 302 are not interrupted.

[0035] In this roof structure, some of the rainwater that falls on the panel members 303 arranged vertically and horizontally flows over the surfaces of the panel members 303, which are supported at an incline by the rafters 302, and flows into the horizontal gutter 41 provided on the downwardly sloping side. In addition, rainwater that seeps in between the panel members 303 or rainwater that falls directly on the rainwater receiving member 310 is received by the rainwater receiving member 310 and collected in the flow path formed by the flow path forming portion 310a, flows through the V-shaped groove formed by the flow path forming portion 310a, and flows into the horizontal gutter 41. The rainwater that flows into the horizontal gutter 41 is drained through the connecting gutter 42 and the vertical gutter 43 connected to the horizontal gutter 41.

[0036] In this way, by providing the rainwater receiving member 310 between the rafter 302 and the panel member 303, rainwater and the like that seeps in between adjacent panel members 303 is collected in the V-shaped groove formed by the flow path forming portion 310a of the rainwater receiving member 310 and drained into the horizontal gutter 41 provided on the downward sloping side of the rafter 302, thereby preventing leaks.

[0037] Furthermore, the rainwater receiving member 310 can be easily installed by placing the mounting portion 310b of the rainwater receiving member 310 on the upper surface of the rafter 302, and then fastening the rainwater receiving member 310 to the frame 303b and the rafter 302 using the existing panel mounting bolts 307 and nuts 308.

[0038] Furthermore, the rainwater receiving member 310 can be easily manufactured by bending a thin plate, and in particular, by forming the flow path forming portion 310a into an approximately "V" shape, the number of bends required when forming it by bending can be reduced.

[0039] Furthermore, by using rainwater receiving member 310 to receive rainwater that seeps in through the joints of panel members 303 along rafters 302, there is no need to embed gaskets in the joints along rafters 302. As a result, it is only necessary to insert gaskets 305 in the horizontal joints that intersect with rafters 302, among the joints formed between adjacent panel members 303, which improves workability compared to the conventional method of embedding gaskets in vertical and horizontal joints. Furthermore, since the gaskets inserted into the horizontal joints are not interrupted at the intersections of the joints, rainwater is prevented from seeping in through the gaps in the gaskets, thereby preventing leaks.

[0040] In this embodiment, an example has been described in which solar panels are used for at least some of the multiple panel members 303, but in the present invention, the panel members are not limited to solar panels and may be, for example, plate-shaped members made of resin such as acrylic, or plate-shaped members made of metal such as aluminum or galvalume steel sheet.

[0041] [Modifications of the embodiment] In the above-described embodiment, the flow path forming portion 310a of the rainwater receiving member 310 has been described as forming a V-shaped groove whose cross section perpendicular to the longitudinal direction of the rainwater receiving member 310 is substantially V-shaped, but in the present invention, the flow path formed by the flow path forming portion is not limited to a V-shaped groove, and may have any cross-sectional shape as long as it functions as a flow path for rainwater. Figures 9A to 9D show modifications of the rainwater receiving member.

[0042] In the rainwater receiving member 310A shown in FIG. 9A, flow path forming portions 310Aa provided on both edges of a flat mounting portion 310b form semicircular grooves whose cross sections perpendicular to the longitudinal direction of the rainwater receiving member 310A are substantially semicircular. In the rainwater receiving member 310B shown in FIG. 9B, the flow path forming portions 310Ba provided on both edges of the flat mounting portion 310b form a square groove whose cross section perpendicular to the longitudinal direction of the rainwater receiving member 310B is U-shaped (with the open side facing upward). In the rainwater receiving member 310C shown in Figure 9C, flow path forming portions 310Ca provided on both edges of a flat mounting portion 310b include inclined surfaces 310Ca0 that slope downward from the mounting portion 310b, and form a groove with a trapezoidal cross section perpendicular to the longitudinal direction of the rainwater receiving member 310C.

[0043] 9D includes an inclined surface 310Da0 that slopes downward from a flat mounting portion 310b, and includes a folded portion 310Da1 where an edge along the longitudinal direction of the rainwater receiving member 310D is folded back toward the mounting portion 310b. According to this example, even when the amount of rainwater flowing through the flow path formed by the flow path forming portion 310Da increases, the folded portion 310Da1 can prevent the rainwater from overflowing the flow path, thereby reducing the risk of rain leakage.

[0044] 7A and 7B and 9A to 9D show examples of the configuration of the rainwater receiving member in which the flow path forming portions are provided symmetrically on either side of the placing portion 310b, but this does not necessarily have to be symmetrical. [Industrial Applicability]

[0045] The present invention can be used for roofs for parking lots. [Explanation of symbols]

[0046] 301...purlin material, 302...rafters, 303...panel member, 303a...solar panel body, 303b...frame, 304, 305...gasket, 310...rainwater receiving member, 310a...flow path forming portion, 310b...mounting portion, 41...horizontal gutter, PS...parking space.

Claims

1. a frame having a plurality of purlins arranged parallel or approximately parallel to one another, and a plurality of rafters extending in a direction intersecting the plurality of purlins and sloping downward relative to the horizontal direction; A plurality of panel members of the framework that are supported by at least the plurality of rafters and cover the parking space above; a plurality of rainwater receiving members provided between each of the rafters and the panel members, for receiving and draining rainwater including rainwater that has infiltrated between the plurality of panel members; and The rafters, the panel members, and the rainwater receiving members each have a through hole. A roof structure for a parking lot, wherein the rainwater receiving member is fastened to the panel member and the rafter by a fastening member that passes through the through hole and fixes the panel member to the rafter.

2. The roof structure for a parking lot according to claim 1, The panel member further includes a panel body and a frame provided on a peripheral edge of the panel body and supporting the panel body, The frame is provided with the through hole, A roof structure for a parking lot, characterized in that the rainwater receiving member is arranged between the rafter and the frame, and is fastened to the frame and the rafter by the fastening member that passes through the through hole and fixes the frame to the rafter.

3. The roof structure for a parking lot according to claim 2, The rafters are H-shaped or T-shaped bars having a plate-like portion facing the panel member and a cross section perpendicular to the longitudinal direction that is approximately H-shaped or T-shaped, The frame has legs each having a substantially L-shaped cross section perpendicular to the longitudinal direction, The through holes are provided in the plate-shaped portion and the leg portion, A roof structure for a parking lot, characterized in that the rainwater receiving member is arranged between the plate-shaped portion of the rafter and the leg portion of the frame, and is fastened to the frame and the rafter by the fastening member that passes through the through hole and fixes the frame to the rafter.

4. The roof structure for a parking lot according to any one of claims 1 to 3, The rainwater receiving member includes a mounting portion extending along each of the plurality of rafters and mounted on the rafters; a flow path forming portion formed integrally with the mounting portion and configured to form a flow path for rainwater along the rafters on at least one side of the rafters when the rafters are placed on the rafters; A roof structure for a parking lot, comprising:

5. The roof structure for a parking lot according to claim 4, A roof structure for a parking lot, characterized in that the flow path forming portion is provided on both sides of the rafters.

6. The roof structure for a parking lot according to claim 5, A roof structure for a parking lot, characterized in that the panel members are arranged above each of the flow path forming portions provided on both sides of the rafters.

7. The roof structure for a parking lot according to claim 5, A roof structure for a parking lot, characterized in that the panel member is arranged only on the upper side of one of the flow path forming portions provided on both sides of the rafter, and this panel member is a panel member arranged at the horizontal end of a plurality of the panel members arranged side by side in the horizontal direction.

8. The roof structure for a parking lot according to any one of claims 4 to 7, A roof structure for a parking lot, characterized in that the edge portion of the flow path forming portion along the longitudinal direction of the rainwater receiving member is folded back toward the side of the storage portion.

9. The roof structure for a parking lot according to any one of claims 1 to 8, A roof structure for a parking lot, further comprising a horizontal gutter extending in a direction intersecting the rafters at one end of the downwardly sloping side of the rafters, and receiving rainwater flowing down from the rainwater receiving members provided on each of the rafters.

10. The roof structure for a parking lot according to any one of claims 1 to 9, A roof structure for a parking lot, characterized in that at least some of the panel members among the plurality of panel members are solar panels for solar power generation.

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