Roof structure and fin

Abstract

To provide a roof structure and a fin capable of draining water from a drain hollow part and suitable for design.SOLUTION: A roof structural body 10 has: a roof material 18; a front frame 20 for supporting an edge of the roof material 18; and a fin 12 attached to an outer peripheral side of the front frame 20. The front frame 20 forms a drain hollow part 20e between itself and the roof material 18, a frame wall drain hole 30e is formed on an outer peripheral surface of the drain hollow part 20e, and the fin 12 is attached to a position covering the frame wall drain hole 30e, and has a drain passage 38 for guiding water discharged from the frame wall drain hole 30e to the outside.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a roof structure including a roofing material and a frame member that supports an edge of the roofing material, and a fin attached to the frame member.

Background Art

[0002] A roof structure in a carport or the like includes a roofing material and a frame member that supports an edge of the roofing material. Fins that further protrude outward may be provided on an outer peripheral side surface of the frame member for design considerations (Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the above-described frame member, a drainage hollow portion may be formed between the frame member and the roofing material. Depending on the specifications of the roof structure, water may enter the hollow portion, and in order to drain the water, it may be considered to form drainage holes on the outer peripheral surface. However, when the above-described fins are provided on the outer peripheral surface of the frame, the drainage holes are blocked. Further, when the fins are provided avoiding the drainage holes, the drainage holes are visually recognized and are not preferable in terms of design.

[0005] The present invention has been made in view of the above problems, and an object thereof is to provide a roof structure and a fin that enable drainage of a drainage hollow portion and are also suitable in terms of design.

Means for Solving the Problems

[0006] In order to solve the above-described problems and achieve the object, a roof structure according to the present invention includes a roof material, a frame material that supports an edge of the roof material, and fins attached to an outer peripheral side of the frame material. The frame material forms a drainage hollow portion between the frame material and the roof material, and frame wall drainage holes are formed on an outer peripheral surface of the drainage hollow portion. The fins are attached at positions covering the frame wall drainage holes and have drainage channels for guiding water discharged from the frame wall drainage holes to the outside.

[0007] Further, a fin according to the present invention is a fin attached to a roof structure including a roof material and a frame material that supports an edge of the roof material. The frame material forms a drainage hollow portion between the frame material and the roof material, and frame wall drainage holes are formed on an outer peripheral surface of the drainage hollow portion. The fin is attached at a position covering the frame wall drainage holes on an outer peripheral side of the frame material and has a drainage channel for guiding water discharged from the frame wall end drainage holes to the outside.

Effect of the Invention

[0008] According to the present invention, drainage of the drainage hollow portion is possible, and moreover, the frame wall end drainage holes are not visible, which is aesthetically suitable.

Brief Description of the Drawings

[0009]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Mode for Carrying Out the Invention

[0010] Hereinafter, embodiments of the roof structure and the fin according to the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited by this embodiment.

[0011] FIG. 1 is a front view of a carport 14 including a roof structure 10 and a fin 12 according to the present embodiment of the present invention. FIG. 2 is a side view of the carport 14.

[0012] The carport 14 supports both front ends of the roof structure 10 by two columns 16, and the rear side is supported by a building 18. In this embodiment, the side where a person normally gets on and off a vehicle parked in the carport 14 is defined as the front, and the opposite side is defined as the rear. However, the carport 14 does not prevent a person from getting on and off from a window or the like of the building 18. Further, regarding the roof structure 10, a front frame (frame member) 20, a rear frame 22, and left and right gable purlins 24 described later are regarded as a frame body, the outside of the frame is regarded as the outer peripheral side, and the inside of the frame is regarded as the inner peripheral side. For the front frame 20, the front side is the outer peripheral side and the rear side is the inner peripheral side.

[0013] The roof structure 10 slopes downward to the front to drain rainwater to the front side. A rain gutter is not provided at the front end of the roof structure 10. This is because in an area where a large amount of rain is expected in a short time such as a squall, it is more reasonable to drain directly rather than through a rain gutter and then through a downspout. Also, in the carport 14, the rain gutter may be omitted for design reasons or the like. The rear side of the carport 14 may be supported by columns or the like instead of the building 18.

[0014] The roof structure 10 has a plurality of roof members 18, a front frame 20 that supports the edges around the perimeter of the roof member 18, a rear frame 22, left and right gable purlins 24, and fins 12 attached to the outer peripheral side of the front frame 20. The front frame 20, rear frame 22, gable purlins 24, and fins 12 are extrusion-molded materials made of a metal such as aluminum (including alloys) and are configured to have a substantially uniform cross-sectional shape over the entire length along the longitudinal direction. Both ends of each shaped material are closed by caps or the like.

[0015] The roof members 18 are provided with long plates in the front-rear direction arranged side by side left and right, and are connected to each other by purlins 26. The roof members 18 are, for example, polycarbonate materials. The rear frame 22 also serves as a connector to the building 18. The roof members 18 are supported with the purlins 26 and gable purlins 24 serving as beams.

[0016] Figure 3 is a cross-sectional side view of the front end portion of the carport 14. Figure 4 is a bottom view of the front end portion of the carport 14. Figure 5 is a front view of the front frame 20.

[0017] First, the front frame 20 will be described. The front frame 20 has a substantially rectangular hollow portion 20a as a base. Support pieces 20b project inward from the lower end of the inner peripheral side of the hollow portion 20a, and the support pieces 20b and the inner peripheral wall abut against and support the end face of the purlin 26. An L-shaped fixing piece 20c is provided from the upper end of the inner peripheral side of the hollow portion, and a seal 28 is fixed to the fixing piece 20c. The seal 28 abuts against and seals the lower surface of the roof member 18. In this embodiment, the front frame 20 supports the gently inclined roof member 18 via the purlin 26 and supports the lower edge by the seal 28.

[0018] An upper protruding portion 30 protrudes from the upper end on the outer peripheral side of the hollow portion 20a. The upper protruding portion has an outer peripheral wall 30a extending from the outer peripheral side surface of the hollow portion 20a, an engaging convex portion 30b formed at the tip thereof, a roofing material pressing portion 30c formed on the inner peripheral side thereof, and a protruding piece 30d protruding upward from the inner peripheral side end portion. The engaging convex portion 30b has a convex shape upward and is a low rectangular U-shaped opening downward. The front-rear width of the engaging convex portion 30b is slightly larger than the head of the screw 32. The roofing material pressing portion 30c is in contact with the upper surface of the front end portion of the roofing material 18. The front end small opening of the roof cleaning material presser separated from the rafter abuts against the protruding piece 30d.

[0019] The front frame 20 forms a drainage hollow portion 20e between it and the roofing material 18. Specifically, the upper wall 20d of the hollow portion 20a serves as a partition wall, and the space covered by the outer peripheral wall 30a, the roofing material 18, and the seal 28 is the drainage hollow portion 20e. A small amount of water can infiltrate from parts where the roofing material 18 and the roofing material pressing portion 30c are in metal contact. A frame wall drainage hole 30e is formed at the lower end of the outer peripheral wall 30a, enabling the water in the drainage hollow portion 20e to be drained. The upper wall of the hollow portion 20a that serves as the bottom wall of the drainage hollow portion 20e has the same inclination as the roofing material 18, allowing for smooth drainage. A plurality of frame wall drainage holes 30e are provided along the longitudinal direction of the front frame 20, and in this embodiment, five are provided at equal intervals. The frame wall drainage holes 30e are elongated in the lateral direction.

[0020] The outer peripheral end of the lower wall of the hollow portion 20a forms a small inclined surface 20f of 45 degrees. The outer peripheral wall of the hollow portion 20a protrudes further downward from the intersection with the inclined surface 20f to form a frame end water cut piece 20g. The lower wall of the hollow portion 20a is inclined downward toward the outer peripheral side, and since the frame end water cut piece 20g is formed, the water flowing down along the outer peripheral wall of the hollow portion 20a does not enter the inner peripheral side.

[0021] Next, the fin 12 will be described. FIG. 6 is a bottom view of the fin 12. FIG. 7 is a cross-sectional side view of the fin 12.

[0022] The fin 12 is composed of a fin body 34 and a fixing engagement part 36. Although the fin 12 is mainly provided for improving the design, it can also be regarded as an extension frame when attached to the front frame 20. The fixing engagement part 36 is composed of a standing wall 36a, a screw fixing part 36b, and a downward protruding piece 36c. The screw fixing part 36b protrudes from the end of the standing wall 36a to the inner peripheral side. The downward protruding piece 36c protrudes downward from the end of the screw fixing part 36b. The standing wall 36a abuts against the outer peripheral wall 30a, the screw fixing part 36b abuts against the upper surface of the engaging convex part 30b, and the downward protruding piece 36c abuts against the inner peripheral side surface of the engaging convex part 30b. That is, the fixing engagement part 36 abuts against the engaging convex part 30b without a gap and is stably engaged. By fixing the screw fixing part 36b and the engaging convex part 30b with a screw 32 (see Fig. 3), the fin 12 is attached to the front frame 20.

[0023] The fin body 34 has a flat shape that is long in the front-rear direction and has a hollow structure. In this embodiment, the ratio of the upper and lower dimensions to the front and rear dimensions of the fin body 34 is about 1:4, and it appears as a plate shape in general view. The upper and lower dimensions of the fin body 34 are slightly smaller than the drainage hollow part 20e. The fin body 34 is partitioned by a partition wall 34a into a tip chamber 34b on the tip side and a base end recess 34c that opens to the side facing the front frame 20. The tip chamber 34b has a sealed hollow structure, and the base end recess 34c has a side-opening hollow structure. The base end recess 34c is substantially square.

[0024] Fin lower drainage holes 34e are formed in the lower wall 34d of the base end recess 34c. A plurality of fin lower drainage holes 34e are provided along the longitudinal direction of the fin 12, and in this embodiment, five are provided at equal intervals. The fin lower drainage holes 34e are elongated in the lateral direction. The number and intervals of the fin lower drainage holes 34e and the frame wall drainage holes 30e are not limited, but it is preferable to provide them so that their longitudinal positions and lengths match each other.

[0025] The fin 12 is attached at a position where the base end recess 34c covers the frame wall drain hole 30e. Specifically, the lower wall 34d and the upper wall 34f of the base end recess 34c in the fin body 34 are in contact with the outer peripheral wall 30a. The frame wall drain hole 30e is between the lower wall 34d and the upper wall 34f and opens into the base end recess 34c. The lower end of the frame wall drain hole 30e and the upper end of the lower wall 34d are substantially aligned.

[0026] The lower wall 34d is arranged at a position that is an extension of the upper wall 20d of the hollow portion 20a, and no load is applied to the outer peripheral wall of the front frame 20 such as the outer peripheral wall 30a. Since the drainage hollow portion 20e, which is mainly for minor drainage compared to the hollow portion 20a that requires strength, has a smaller vertical dimension, the upper wall 20d, which is the partition wall between the two, is relatively above, and the lower wall 34d is aligned with the extension of the upper wall 20d of the hollow portion 20a, so that the fin 12 is necessarily arranged upward and has a continuous overall appearance with the roof material 18, which is aesthetically suitable.

[0027] The upper wall 34f is slightly lower than the roof material 18 but is parallel to the extension surface of the roof material 18, and a suitable appearance in which the upper wall 34f and the roof material 18 are substantially continuous can be obtained. The fin body 34 has the same inclination as the roof material 18, but basically it only needs to have a downward inclination in the front. The upper wall 34f and the extension surface of the roof material 18 may be completely aligned.

[0028] A drain channel 38 for guiding the water discharged from the frame wall drain hole 30e to the outside is formed in the fin 12. The drain channel 38 is composed of an opening of the base end recess 34c as an inlet facing the frame wall drain hole 30e and a fin lower drain hole 34e formed in the lower wall 34d. According to the drain channel 38, as shown by the broken line A, drainage is possible from the drainage hollow portion 20e through the base end recess 34c and out through the fin lower drain hole 34e. In this way, according to the roof structure 10 and the fin 12, drainage of the drainage hollow portion 20e is possible, and moreover, the frame wall drain hole 30e is covered, which is aesthetically suitable. Note that the fin lower drain hole 34e is on the lower surface of the fin body 34, near the inner peripheral side end of the downwardly inclined lower wall 34d, and is formed at the inner corner with the front frame 20, so it is hardly visible.

[0029] The outer peripheral end of the lower wall 34d of the fin body 34 forms a small inclined surface 34g of 45 degrees. The outer peripheral wall of the fin body 34 further projects downward from the intersection with the inclined surface 34g to form a fin end water cut piece 34h. The lower wall 34d is inclined downward toward the outer peripheral side, and since the frame end water cut piece 34h is formed, the water flowing down along the upper surface of the fin body 34 from the roofing material 18 as shown by the broken line B does not enter the inner peripheral side. The protruding width of the fin end water cut piece 34h is small and reaches the position of the extension line of the lower wall 34d, so it is not conspicuous. Moreover, the appearance of the fin body 34 is visually recognized as plate-shaped and is suitable in terms of design.

[0030] FIG. 8 is a cross-sectional side view of a state where the fin 12A according to the first modification is attached to the front frame. FIG. 9 is a cross-sectional side view of a state where the fin 12B according to the second modification is attached to the front frame.

[0031] In the fin 12A, instead of the inclined surface 34g described above, a rectangular recess 40 opening downward is formed. The rectangular recess 40 is slightly longer in the front-rear direction. The depth of the rectangular recess 40 is about half of the vertical dimension of the fin body 34. The fin end water cut piece 34h is the same as in the above example. In addition, instead of the inclined surface 20f in the front frame 20, a rectangular recess 42 similar to the rectangular recess 40 may be provided.

[0032] In the fin 12B, instead of the inclined surface 34g described above, a rectangular recess 44 opening downward is formed. The rectangular recess 44 is substantially square. In the fin 12B, the upper wall 34f also serves as the bottom wall of the rectangular recess 44, and the tip chamber 34b is narrowed accordingly. In this case, the entire outer peripheral wall of the fin 12B becomes the fin end water cut piece 34h. In addition, instead of the inclined surface 20f in the front frame 20, a rectangular recess 46 similar to the rectangular recess 44 may be provided.

[0033] The present invention is applicable not only to carports but also to roof structures in outdoor structures such as terraces and eaves. A carport is also called a canopy. When the roof structure has a downward slope, a frame wall drain hole may be provided in the rear frame, and fins may be attached so as to cover the frame wall drain hole. The present invention is not limited to the above-described embodiments, and it goes without saying that it can be freely changed without departing from the gist of the present invention.

[0034] The roof structure according to the present invention includes a roof material, a frame material that supports the edge of the roof material, and fins attached to the outer peripheral side of the frame material. The frame material forms a drainage hollow portion between the frame material and the roof material, and frame wall drain holes are formed on the outer peripheral surface of the drainage hollow portion. The fins are attached at positions covering the frame wall drain holes, and have drainage channels for guiding water discharged from the frame wall drain holes to the outside.

[0035] The fin according to the present invention is a fin attached to a roof structure including a roof material and a frame material that supports the edge of the roof material. The frame material forms a drainage hollow portion between the frame material and the roof material, and frame wall drain holes are formed on the outer peripheral surface of the drainage hollow portion. The frame material is attached on the outer peripheral side at a position covering the frame wall drain holes, and has a drainage channel for guiding water discharged from the frame wall end drain holes to the outside.

[0036] According to the present invention, drainage of the drainage hollow portion is possible, and moreover, the frame wall end drain holes are not visible, which is aesthetically suitable.

[0037] When the fin is a shaped material with a hollow structure, and the drainage channel is composed of an inlet facing the frame wall drain hole and a fin lower drain hole formed in the lower wall of the hollow structure, drainage is easy.

[0038] When the fin is partitioned into a tip chamber on the tip side and a base end recess that opens on the side facing the frame material, and the fin lower drain hole is formed in the lower wall in the base end recess, water does not enter the tip chamber and is drained from the base end recess.

[0039] If the roof material is inclined and the frame material supports the lower edge of the inclination of the roof material, drainage can be achieved along the inclination.

[0040] If a fin end water slicer that protrudes downward is provided at the tip of the fin, it is easy to let water fall.

[0041] If the frame material includes a hollow portion partitioned by a partition wall below the drainage hollow portion, and the lower wall of the fin is arranged at a position on the extension of the partition wall, no load is applied to the outer peripheral wall other than the partition wall.

[0042] If a frame end water slicer that protrudes downward is formed on the outer peripheral side surface of the frame material, it is easy to let water fall.

[0043] The roof material may be supported by a plurality of columns and beams.

[0044] If the upper surface of the fin forms the extension surface of the roof material or is parallel to the extension surface, it is suitable in terms of design.

Explanation of Signs

[0045] 10 Roof structure 12, 12A, 12B Fins, 14 Carport, 18 Roof material, 20 Front frame, 20d Upper wall (partition wall), 20e Drainage hollow portion, 20g Frame end water slicer, 30 Upper protruding portion, 30a Outer peripheral wall, 30b Engaging convex portion, 30e Frame wall drain hole, 34 Fin body, 34b Tip chamber, 34c Base end recess, 34d Lower wall, 34e Fin lower drain hole, 34f Upper wall, 34h Fin end water slicer, 36 Fixed engaging portion, 38 Drainage path

Claims

1. A roofing material, a frame member that supports the edge of the roofing material, and fins attached to the outer peripheral side of the frame member, characterized in that the frame member forms a drainage hollow portion between itself and the roofing material, and frame wall drainage holes are formed on the outer peripheral surface of the drainage hollow portion, the fins are attached at positions covering the frame wall drainage holes and have a drainage channel for guiding the water discharged from the frame wall drainage holes to the outside roof structure.

2. The fin is a shaped member with a hollow structure, and the drainage channel is composed of an inlet facing the frame wall drainage hole and a fin lower drainage hole formed in the lower wall of the hollow structure roof structure according to claim 1, characterized in that.

3. The fin is partitioned into a tip chamber on the tip side and a base end recess that opens to the side facing the frame member, and the fin lower drainage hole is formed in the lower wall in the base end recess roof structure according to claim 2, characterized in that.

4. The roofing material is inclined, and the frame member supports the lower edge of the inclination of the roofing material roof structure according to claim 1, characterized in that.

5. A fin end water cut piece that protrudes downward is provided at the tip of the fin roof structure according to claim 1, characterized in that.

6. The frame member includes a hollow portion partitioned by a partition wall below the drainage hollow portion, and the lower wall of the fin is arranged at a position on the extension of the partition wall roof structure according to claim 1, characterized in that.

7. A frame end water cut piece that protrudes downward is formed on the outer peripheral side surface of the frame member roof structure according to claim 1, characterized in that.

8. The roofing material is supported by a plurality of columns and beams roof structure according to claim 1, characterized in that.

9. The upper surface of the fin forms the extension surface of the roofing material or is parallel to the extension surface roof structure according to claim 1, characterized in that.

10. A fin attached to a roof structure including a roofing material and a frame member that supports the edge of the roofing material, wherein the frame member forms a drainage hollow portion between itself and the roofing material, and frame wall drainage holes are formed on the outer peripheral surface of the drainage hollow portion, attached at a position on the outer peripheral side of the frame member to cover the frame wall drainage holes and having a drainage channel for guiding the water discharged from the frame wall end drainage holes to the outside fin, characterized in that.

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