JPH08218583A - Roof structure - Google Patents

Abstract

PURPOSE: To provide a lightweight roof structure, which has a simple constitution and is executed easily, low-cost, and lightweight. CONSTITUTION: A roof member 19 has a base section 12, an upper cover section 13, a lower cover section 14, a bearing section 17 and a reinforcing material 21. A left cover body 18 and a right cover body are fitted at both end sections in the longitudinal direction of the roof member 19. A roof structure 9 consisting of the roof member 19 and the cover bodies 18 is arranged on a approximately vertical wall surface 11 to the body so that the lose section 12 may extend horizontally.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a roof structure which can be suitably implemented as an eave provided on an outer wall of a building.

[0002]

2. Description of the Related Art A typical conventional roof structure 1 is shown in FIG.
As shown in Fig. 1, a pair of barrel trees 2 each having one end fixed to the outer wall of the building and inclined downward at the other end as it is separated from the building are arranged in parallel in a horizontal direction at regular intervals. 2 extends diagonally upward from the lower wall surface,
It has arms 3 supporting the rafters 2 from below, and a cover material 4 made of wood plywood is laid over the upper surfaces of the pair of rafters 2 and functions as an eaves. The cover member 4 may be formed of a corrugated plate made of metal or synthetic resin instead of the plywood.

[0003]

In such a conventional roof structure 1, the rafters 2, arms 3 and cover member 4 must be formed and assembled. Further, since the cover material 4 is made of wood, it needs to be waterproofed on site, and if a metal corrugated sheet is used, it needs to be rust-preventive coated, which is extremely troublesome, and the construction work on site is complicated. Therefore, there is a problem that the cost for constructing the roof structure 1 becomes expensive.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a roof structure which has a simple structure, is inexpensive, and can be easily constructed without requiring time and effort such as waterproofing or rust prevention coating.

[0005]

According to the present invention, there is provided a base portion fixed to a substantially vertical wall surface of a skeleton, and a thin plate-like upper cover portion which is continuous with the base portion and inclines downward as it protrudes in a direction away from the base portion. A thin plate-shaped lower cover portion that is continuous with the base portion at a distance below the upper cover portion and extends in a direction away from the base portion, and a reinforcing member that connects the upper cover portion and the lower cover portion to each other. The roof structure is characterized in that the base portion, the upper cover portion, the lower cover portion, and the reinforcing member are made of synthetic resin and are formed parallel to each other in the longitudinal direction. Further, the present invention is characterized in that the free end portion of the upper cover portion is formed with a concave groove facing upward and opening along the longitudinal direction.

[0006]

According to the present invention, the upper cover portion and the lower cover portion are provided so as to project in a direction away from the base portion on the base portion fixed to the substantially vertical wall surface of the frame, for example, the outer wall of the building. The upper cover portion and the lower cover portion are connected by a reinforcing material. The base portion, the upper cover portion, the lower cover portion and the reinforcing material are made of synthetic resin and are formed parallel to each other in the longitudinal direction. Such a roof structure
Since it can be integrally formed by extrusion molding, it can be easily manufactured, productivity can be improved, and manufacturing cost can be reduced. Moreover, the above roof structure
Since the structure is simpler and lighter than conventional ones, it can be easily attached to the wall surface and does not need to be assembled on site. Therefore, the labor of assembling work can be eliminated and the workability can be improved.

Further, according to the present invention, a concave groove that opens upward is formed at the free end portion of the upper cover portion. The concave groove prevents rainwater flowing on the upper cover portion from the base portion toward the free end portion into the concave groove, and prevents rainwater from directly dropping from the free end portion of the upper cover portion.

[0008]

FIG. 1 shows a roof structure 9 which is an embodiment of the present invention.
2 is a front view thereof, and FIG. 3 is an enlarged cross-sectional view taken along the section line III-III of FIG. 2. The roof structure 9 has a roof member 19 and a pair of left and right lids 18 and 20 provided at both ends in the longitudinal direction thereof,
For example, it is attached to the upper part of a window (not shown).

The roof member 19 is the outer wall 1 which is the skeleton of the building.
0, a base 12 attached to a substantially vertical wall surface 11, an upper cover 13 that is continuous to the base 12 toward the upper side, and is inclined downward as it protrudes from the base 12, and a space below the upper cover 13 on the base 12. Open the base and join the base 12
A lower cover portion 14 including an end wall 16 which is bent upward from a free end portion 26 of the bottom plate 15 and a free end portion 26 of the bottom plate 15 which rises upward as it separates from the upper cover portion 13, and the upper cover portion 13 and the lower cover portion 13. And a plurality of reinforcing members 21 that connect 14 with each other.

The left lid 18 is provided at one end on the left side in the longitudinal direction of the roof member 19 when the roof structure 9 is viewed from the outside, and the right lid 20 is provided at the other longitudinal end of the roof member 19. To be Roof member 19, left lid 18 and right lid 20
Is a synthetic resin such as hard polyvinyl chloride (hereinafter, H-
(Abbreviated as PVC), AES resin, polycarbonate resin, etc., and in this embodiment, for example, HP
Formed by VC.

The base 12 of the roof member 19 is formed in the shape of a rectangular thin plate, extends in the horizontal direction, and is arranged such that the surface thereof is in close contact with the wall surface 11 of the building, which is made of concrete, for example. The base portion 12 is fixed to the outer wall 10 by inserting the base portion 12 by a plurality of screws 22 for concrete arranged near the upper end portion and the lower end portion thereof in the longitudinal direction of the base portion 12 so as to be spaced from each other. These screws 22 are made of a material having corrosion resistance, for example, stainless steel.

On the upper cover portion 13 of the roof member 19, two step surfaces 23a and 23b parallel to the longitudinal direction are formed. The upper surface of the upper cover portion 13 connected to the base portion 12, and the base portion 1
The angle θ1 formed by the front surface of 2 is selected to be larger than 90 °, for example, 110 °. The two step surfaces 23a and 23b have a height ΔH, and the height ΔH
Is approximately equal to the thickness t1 of the upper cover portion 13 in this embodiment. In this way, since the upper cover portion 13 is provided with the two step surfaces 23a and 23b, the gradient from the base 12 to the free end portion 24 is larger than that in the case where there is no step surface, and the drainage is improved. On the lower surface of the upper cover portion 13, a plurality of reinforcing members 21 are provided in parallel with one plane of the base portion 12. A plurality of (seven in this embodiment) reinforcing members 21 are an upper cover portion 13, a lower cover portion 14 including an end wall 16, and a base portion 1.
The space surrounded by 2 is partitioned so as to provide a plurality of (seven in this embodiment) space portions with substantially equal intervals.
The upper cover portion 13 forming an angle θ1 with the base portion 12 is
Widths B1, B2, B from the free end 24 toward the free end 24
A plurality (three in this embodiment) of upper cover portions 1 having three
3a, 13b, 13c and an upper cover portion 1 having a width B4 which is provided closest to the free end and is smaller than the widths B1 to B3.
3d and. The upper cover portions 13a to 13c are provided in parallel to each other, and the upper cover portion 13d is the upper cover portion 1
It is inclined downward by an angle Δθ from 3c. In this embodiment, the angle Δθ is selected to be 1 ° to 2 °. Therefore, the slope of the upper cover portion 13 is inclined downward at a steeper angle in the vicinity of the free end portion 24, and the rainwater flowing down from the upper portion of the upper cover portion 13 at a relatively slow speed is removed.
3d accelerates, drains better and drainage can be improved. The upper surface of the free end portion 24 has the same plane as the upper surface of the upper cover portion 13d provided at the most free end portion,
An arcuate surface 27 formed in an arc shape from the upper surface of the free end portion 24 to the lower end surface 25, and a lower end surface 25 continuous from the arcuate surface 27.
Have. Therefore, since the arcuate surface 27 and the lower end surface 25 intersect at a substantially right angle, rainwater or the like flowing from above the upper cover portion 13 does not wrap around the lower end surface 25 as indicated by the imaginary line Y1 and is indicated by the imaginary line Y2. As described above, it falls from the portion where the arc surface 27 and the lower end surface 25 intersect, and the drainage is further improved. The free end portion 24 is provided so as to project from the upper end portion of the end wall 16 of the lower cover portion 14 by an arbitrary length m, and in this embodiment, m is selected to be 6 mm, for example. Since the lower end surface 25 and the end wall 16 intersect at a right angle, the thickness of the portion of the free end portion 24 where the upper cover portion 13 is continuous with the end wall 16 is most thick than the thickness t1 of the upper cover portion 13. , Free end 24
Increases the strength of.

In the vicinity of the free end portion 26 of the bottom plate 15 of the lower cover portion 14, a horizontal portion 28 which is vertically connected to the end wall 16 and is provided horizontally is formed. By providing the horizontal portion 28, the view from a window (not shown) below the roof structure 9 can be expanded as compared with the case where the end wall 16 is directly provided on the bottom plate 15. The lower cover portion 14 includes a base portion 12 and an upper cover portion 1.
A space of about 6 cm is provided below 3, and the upper cover 1
Since it is provided at an angle θ1 with respect to the base portion 12 as in the case of 3, the bottom plates 15 of the upper cover portion 13 and the lower cover portion 14 are parallel to each other.

A screw margin 29 having a width of about 1 cm is provided near the lower end of the base 12 along the longitudinal direction. Support part 17
Protrudes from the upper end of the screw allowance 29 of the base 12, and the bottom plate 1
5, the lower cover portion 14 is supported from below. Support part 1
Since 7 is provided so as to be perpendicular to the bottom plate 15, it can be most efficiently supported.

Base 12, upper cover 13, lower cover 1
4 and the supporting portion 17 have the same thickness t1, and t1 is 2
mm to 5 mm, preferably 3.5 mm
To be chosen. The thickness t2 of the reinforcing member 21 is thinner than t1,
It is selected within the range of 1.5 mm to 3 mm, preferably 2 m
Selected for m. The two step surfaces 23a and 23b are provided with a reinforcing material 21 at their lower portions.
The a and 23b are provided in a virtual plane including a plane of the corresponding reinforcing member 21 on the free end side, and are formed so as not to become thin near the step surfaces 23a and 23b. Also, the base 1
Since the lower end surface 30 of the second cover 2 is formed so as to be included in a virtual plane including the outer surface of the lower cover portion 14 that faces below the horizontal portion 28, the height position of the free end portion 26 of the lower cover portion 14 can be easily adjusted. The height of the roof structure 9 can be easily set.

The base portion 12 of the roof member 19 and the upper cover portion 1
3, the lower cover portion 14, the support portion 17, and the reinforcing member 21 are configured to be parallel to each other, so that they can be integrally formed by extrusion molding. Therefore, the roof members 19 having different lengths can be easily formed.

FIG. 4 is a plan view showing the roof structure 9,
5 is a bottom view thereof, FIG. 6 is a rear view thereof, FIG. 7 is an enlarged view of a right side surface thereof, and FIG. 8 is an enlarged view of a left side surface thereof. The left lid 18 is fitted to one end on the left side in the longitudinal direction of the roof member 19 when the roof structure 9 is viewed from the outside. The peripheral portion 31 of the left lid 18 is the base portion 1 of the roof member 19.
2 from the upper end surface 35 of the base 2 through the upper cover portion 13, the free end portion 24, the lower cover portion 14, and the support portion 17
9 and the lower end surface 30 are formed so as to surround them. The side portion 32 of the left lid body 18 has the same shape as the cross section perpendicular to the longitudinal direction of the roof member 19, and one end portion on the left side in the width direction of the peripheral edge portion 31 is provided at the peripheral edge of the side portion 32. The width of the peripheral portion 31 is about 2 cm in this embodiment, and the peripheral portion 3
1, the thickness of the side portion 32 is the same as the thickness t1 of the roof member 19. The left lid 18 is H-PVC of the same quality as the roof member 19.
And can be integrally formed by injection molding. The left lid 18 is used in a state of being fitted to the roof member 19, and rainwater and the like may leak from a gap between the peripheral edge portion 31 and the roof member 19. Therefore, the left lid 18 and the roof member 19 are different from each other. It is fixed with an adhesive. Right lid 20
Is provided on the other end of the roof member 19 in the longitudinal direction, and is configured to be symmetrical with the left lid body 18.

Since the roof structure 9 is left outdoors, there is a risk of deterioration, coloring, bending and cracking due to sunlight, wind and rain. Roof structure 9 to prevent them
Protects the parts that may be directly exposed to sunlight, wind, and rain by covering them with a weather-resistant coating material. In this embodiment,
As a coating material, for example, polymethylmethacrylate (hereinafter,
(Abbreviated as PMMA). The PMMA includes a roof member 19 with left and right lids 18 and 20, and a front surface of the base 12 that is located above the upper cover portion 13 and faces the front, an upper surface of the upper cover portion 13, a free end portion 24, an end wall 16, Horizontal part 28
And the outer surfaces of the left and right lids 18 and 20 are covered. The coating layer thickness of PMMA is 0.4 mm or more and 1 mm
It is selected within the following range, preferably 0.7 mm. If it is less than 0.4 mm, it is too thin and the weather resistance is poor.
If the thickness exceeds mm, PMMA is relatively expensive and the manufacturing cost increases. The roof member 19 can be extruded integrally with the roof member 19 and can be extruded integrally with PMMA as a covering material. Also, the PM
A film having weather resistance other than MA or PMMA is separately prepared, and the roof member 19 and the lids 18 and 2 are provided.
At the time of forming 0, a film to which an adhesive has been applied in advance is attached, or after the formation, the roof member 19 and each lid 18,
It is also possible to apply an adhesive to 20 and attach a film.
Further, these coatings are not always performed, and may not be coated.

In the roof structure 9, the screw allowances 29 provided on the upper and lower portions of the base portion 12 are used as a plurality of concrete screws 22.
It is fixed to the body with. Further, screws located at both ends in the upper and lower portions of the base 12 in the longitudinal direction are inserted into the respective lids 18 and 20 and the base 12 and fixed to the body, and the respective lids 18 and 20 are fixed to the roof member 19 and the roof member 19. Fix on both the body. The lids 18 and 20 are fixed to the roof member 19 by screws 33 in front of the peripheral edge portion 31 that covers the end wall 16.

Further, seven space portions of the roof structure 9 partitioned by the base portion 12, the upper cover portion 13, the lower cover portion 14 and the six reinforcing members 21, the support portion 17, the lower cover portion 14 and the base portion. A minute air hole communicating with the outside may be provided in each of the spaces partitioned by 12. By doing so, it is possible to prevent deformation of the roof structure 9 caused by expansion of the air inside the roof structure 9 when the temperature rises such as in summer. When forming these air holes, they can be formed by a drilling tool such as a drill.

FIG. 9 is a sectional view of a roof structure 50 showing another embodiment of the present invention. In addition, the same reference numerals are attached to the portions corresponding to those of the above-described embodiment FIGS. A groove 51 is provided in the longitudinal direction near the free end 24 of the upper cover portion 13 of the roof structure 50. The recessed groove 51 has a substantially semicircular cross section, one end 52 on the free end 24 side is continuous with the end wall 16 and the free end 24, and the other end 53 is on the flat portion 54 of the upper cover part 13. It is provided so that the open portion of the concave groove 51 faces upward. Therefore, the rainwater that flows down from above the upper cover portion 13 once flows into the concave groove 51, and the lids 18 and 20 provided at both ends in the longitudinal direction of the roof structure 50.
Since water is drained from the left and right sides of the roof structure 50 through the, it is possible to prevent a large amount of water droplets from falling from the free end portion 24.

FIG. 10 is a sectional view of a roof structure 60 showing still another embodiment of the present invention. In addition, the same reference numerals are attached to the portions corresponding to those of the above-described embodiment FIGS.
The upper cover portion 13 is similar to the roof structures 9 and 50 in the base portion 1.
An angle θ1 is formed with respect to 2, and a groove 51 is provided in the vicinity of the free end portion 24 as in the roof structure 50. Therefore, a large amount of rainwater is prevented from flowing down from the free end portion 24, so that it is not necessary to form a protrusion for improving the drainage of the free end portion 24, and the upper cover portion 13 is directly connected to the lower cover portion 14. It is connected to the end wall 16. Since the bottom plate 15 of the lower cover portion 14 is horizontally provided, the free end portion 26 of the lower cover portion 14 serves as the end wall 1.
6 and the base end portion 61 and the base portion 12. Therefore, the roof member 19 is formed so that the thickness thereof increases from the free end portion 24 toward the base end portion, and a bearing area similar to that in the case where the support member 17 of each roof structure 9, 50 is provided is obtained. be able to. Therefore, a sufficient reaction force can be obtained from the wall surface 11 through the base portion 12, and it is not necessary to provide the support portion 17 unlike the roof structures 9 and 50 of the above-described embodiment.

[0023]

As described above, according to the present invention, the roof structure has the base portion, the upper cover portion, the lower cover portion and the reinforcing member, and is fixed to the substantially vertical wall surface of the body. Since the base portion, the upper cover portion, the lower cover portion, and the reinforcing material are configured in parallel with each other, they can be integrally formed by extrusion molding a synthetic resin. Therefore, it can be easily manufactured, productivity can be improved, and manufacturing cost can be reduced. Moreover, since the structure is simpler and lighter than the conventional one, it can be easily attached to the wall surface, and since it is not necessary to assemble it on site, the labor of the assembly work can be eliminated and the workability can be improved.

Further, according to the present invention, the free end portion of the upper cover portion is formed with a concave groove facing upward and opening along the longitudinal direction. The concave groove prevents rainwater flowing down from the base portion toward the free end portion on the upper cover portion to flow into the concave groove, and prevents rainwater from directly dropping from the free end portion of the upper cover portion.

[Brief description of drawings]

FIG. 1 is a sectional view of a roof structure 9 according to an embodiment of the present invention.

FIG. 2 is a front view of a roof structure 9.

FIG. 3 is a sectional view taken along section line III-III in FIG.

FIG. 4 is a plan view of a roof structure 9.

FIG. 5 is a bottom view of the roof structure 9.

FIG. 6 is a rear view of the roof structure 9.

FIG. 7 is an enlarged view of the right side surface of the roof structure 9.

FIG. 8 is an enlarged view of the left side surface of the roof structure 9.

FIG. 9 is a cross-sectional view of a roof structure 50 which is another embodiment of the present invention.

FIG. 10 is a cross-sectional view of a roof structure 60 that is still another embodiment of the present invention.

FIG. 11 is a perspective view of a conventional roof structure 1.

[Explanation of symbols]

 9, 50, 60 Roof structure 10 Outer wall 11 Wall surface 12 Base portion 13 Upper cover portion 14 Lower cover portion 15 Bottom plate 16 End wall 17 Support portion 18 Left lid body 19 Roof member 20 Right lid body 21 Reinforcement material 22, 33 Screw 23 Step Surface 24 Free end 28 Horizontal part 29 Screw allowance 31 Peripheral part 32 Side part 51 Recessed groove

Claims (2)

[Claims] 1. A base portion fixed to a substantially vertical wall surface of a skeleton, a thin plate-shaped upper cover portion that is continuous with the base portion and inclines downward as it protrudes in a direction away from the base portion, and a base portion from the upper cover portion. Also includes a thin plate-shaped lower cover portion that extends in a direction away from the base portion, and a reinforcing member that connects the upper cover portion and the lower cover portion, and the base portion and the upper cover. The roof structure, wherein the portion, the lower cover portion, and the reinforcing material are made of synthetic resin and are formed in parallel with each other in the longitudinal direction. 2. The roof structure according to claim 1, wherein the free end of the upper cover is formed with a recessed groove facing upward and opening along the longitudinal direction.