Roof connection structure

Abstract

The objective of the present invention is to provide a roof connecting structure that allows for a larger overhang than conventional structures, and also simplifies the number of construction steps and reduces costs. [Solution] In the roof connection structure in which the roof 100 is connected to the roof support portion 300 of the building frame 200, a plurality of connecting brackets 400 are provided on the roof support portion 300, protruding outward. The roof 100 is placed across the roof support portion 300 and the plurality of connecting brackets 400. The upper surface 411 of the connecting bracket 400 is an inclined surface that is tilted according to the inclination angle θ of the roof 100, and the lower surface of the roof 100 is placed on this inclined surface.

Description

Technical Field

[0001] The present invention relates to a roof connection structure.

Background Art

[0002] Conventionally, it has been known that by making the eaves of a roof project significantly, direct sunlight can be blocked, intrusion of snow, rain, etc. can be prevented, and deterioration of the outer wall can be prevented. For example, in Patent Document 1, an extended roof support frame that protrudes outward is provided at a portion that supports the roof in a building structure. And a roof is placed across the tip of the extended roof support frame and the portion that supports the roof of the building structure. An attachment fitting is attached to the extended roof support frame, and the rectangular upright piece of the attachment fitting is abutted against the side surface of the roof and fixed to the extended roof support frame by screwing. Therefore, depending on the inclination angle of the roof, the area where the upright piece abuts against the side surface of the roof becomes small, and it has been structurally difficult to make the eaves project more. Further, the extended roof support frame is configured to include a roof beam that supports the ridge side of the roof, a cantilever beam that is perpendicular to the roof beam and projects outward in parallel, and a front beam that connects the tips between the cantilever beams and has an upper surface lower than the upper surface of the roof beam. Since the extended roof support frame is composed of a plurality of members in this way, the number of construction steps at the site is large and the construction takes a long time.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] This invention has been made in view of the above circumstances, and its purpose is to provide a roof connecting structure that allows for a larger overhang than conventional structures, and also simplifies the number of construction steps and reduces costs. [Means for solving the problem]

[0005] The invention described in claim 1 is a roof connection structure in which the roof 100 is connected to a roof support portion 300 in the building frame 200, as shown in Figures 1 to 3, for example. Multiple connecting brackets 400 are provided on the roof support portion 300, protruding outward. The roof 100 is mounted across the roof support section 300 and the multiple connecting brackets 400. The upper surface 411 of the connecting bracket 400 is an inclined surface that is tilted according to the inclination angle θ of the roof 100. The aforementioned roof support portion 300 is a wall 301, Multiple notched recesses R are formed at the upper end of the wall 301. The connecting bracket 400 is fitted into the notched recess R. It is characterized by the following:

[0006] According to the invention described in claim 1, a plurality of connecting brackets 400 are provided on the roof support portion 300, projecting outward, and the roof 100 is placed across the roof support portion 300 and the plurality of connecting brackets 400. The upper surface 411 of the connecting bracket 400 is an inclined surface that is tilted according to the tilt angle θ of the roof 100, and the lower surface of the roof 100 is placed on this inclined surface. As a result, the lower surface of the roof can be supported by the inclined surface of the connecting bracket 400, and the support area is increased. Therefore, the lower surface of the roof 100 can be reliably supported by the inclined surface of the connecting bracket 400, and the overhang of the eaves can be made larger than in the conventional design. Furthermore, by using the connecting bracket 400, the overhang of the eaves can be increased, which simplifies the number of construction steps and reduces costs.

[0008] AlsoThe roof support section 300 is a wall 301, and multiple notched recesses R are formed at the upper end of the wall 301. The connecting bracket 400 is fitted into the notched recesses R, resulting in a simple structure in which the connecting bracket 400 is fitted into the notched recesses R. Therefore, the connecting bracket 400 can be easily installed on the wall 301 on site, simplifying the construction process.

[0009] Claim 2 The invention described is, for example, as shown in Figure 2, 1 In the roof connection structure described above, The aforementioned wall 301 comprises a wall portion 30 and a column portion 31 sandwiched between the wall portions 30, The upper end of the column portion 31 is lower than the height of the two wall portions 30 adjacent to the column portion 31. The notched recess R is characterized by being formed by the upper end surface 311 of the column portion 31 and the side surfaces 321 of the upper ends of the two wall portions 30.

[0010] Claim 2 According to the invention described above, the wall 301 comprises a wall portion 30 and a column portion 31 sandwiched between the wall portions, the upper end of the column portion 31 is lower than the height of the two wall portions 30 adjacent to the column portion 31, and the notched recess R is formed by the upper end surface 311 of the column portion 31 and the side surfaces 321 of the upper ends of the two wall portions 30. Therefore, by making the upper end of the column portion 31 lower than the height of the wall portions 30, the notched recess R can be easily formed. As a result, construction can be simplified.

[0011] Claim 3 The invention described above, as shown in Figures 2 and 3, for example, in the roof connecting structure described in claim 1, A slope adjustment member 500 is provided on the upper end surface 322 of the roof support portion 300. The upper surface 501 of the slope adjustment material 500 is a sloped surface that is inclined according to the inclination angle θ of the roof 100.

[0012] Claim 3According to the invention described in [reference], a gradient adjustment member 500 is provided on the upper end surface 322 of the roof support portion 300, and the upper surface 501 of the gradient adjustment member 500 is an inclined surface inclined according to the inclination angle θ of the roof 100. Therefore, the lower surface of the roof 100 can also be supported by the inclined surface of the gradient adjustment member 500. As a result, the support area becomes larger and it is excellent in terms of strength. Therefore, the eaves can project more than before.

Effect of the Invention

[0017] According to the present invention, it is possible to provide a roof connection structure capable of projecting the eaves more than before, and also capable of simplifying the number of construction steps and reducing costs.

Brief Description of the Drawings

[0018] [Figure 1] It is a plan view of the gable roof in the first embodiment. [Figure 2] It is an exploded perspective view of the roof connection structure at one of the projecting corners in FIG. 1. [Figure 3] It is a side view seen in the direction of the arrow on the line III-III of FIG. 1. [Figure 4] It is a view showing a modified example of FIG. 3. [Figure 5] It is a view showing a modified example of FIG. 3. [Figure 6] It is a plan view of the roof in the second embodiment. [Figure 7] It is a plan view of the roof in the third embodiment. [Figure 8] It is a plan view of the roof in the fourth embodiment.

Modes for Carrying Out the Invention

[0019] Hereinafter, embodiments will be described with reference to the drawings. The features and technical effects of the embodiments will be understood from the following detailed description and the drawings. However, the scope of the present invention is not limited to the embodiments disclosed below. Since the drawings are provided for illustrative purposes only, the scope of the present invention is not limited to the illustrations in the drawings.

[0020] 1. First Embodiment [Roof connection structure] The roof connection structure of the present invention can be applied to various types of roofs, such as hip roofs, gable roofs, or pyramidal roofs of buildings. The following description will use a hip roof as an example, but the present invention is not limited to this.

[0021] Figure 1 is a plan view of a hip roof. The roof 100 is connected to the roof support portion 300 of the building frame 200 by connecting brackets 400. Multiple connecting brackets 400 are provided on the roof support portion 300 of the building frame 200, protruding outward. Preferably, the connecting brackets 400 are provided on the roof support portion 300 at the position that forms the eaves. The roof 100 is then placed across the roof support section 300 and multiple connecting brackets 400. The building structure 200 can be constructed using a panel construction method, in which building components such as walls, floors, and roofs are pre-fabricated into panels in a factory and then assembled at the construction site. Alternatively, the building structure 200 may be constructed using methods other than panel construction, such as conventional post-and-beam construction, wall-type construction, or two-by-four construction. The following explanation will use the panel construction method as an example.

[0022] The building frame 200 is preferably constructed based on a module, which is a standard dimension. A module is a standard dimension used when trying to arrange all parts of a building in multiples of a certain size. For example, if 1 module is the standard dimension, then lengths of 1M (module) can be 800mm, 900mm, 910mm, 1000mm, etc. In this embodiment, 1M (module) is set to 910 mm. In the building frame 200 in this embodiment, it is preferable that the distance between the centerlines (column centers) of the columns constituting the building frame 200 is 1M (module).

[0023] <Roof> The roof 100 comprises multiple roof panels 10a, 10b, and 10c. Although not shown in the figures, the roof panels 10a, 10b, and 10c are constructed by attaching a surface material made of plywood or the like to the surface of a frame body which is assembled from frame members into a modular shape. Reinforcing frame members are provided vertically and horizontally within the frame body. Specifically, the roof 100 shown in Figure 1 comprises, in plan view, a triangular roof panel 10a, a rectangular roof panel 10b, and a trapezoidal roof panel 10c, etc. In Figure 1, a triangular roof panel 10a is placed at one of the two outer corners 20a and 20b, while a rectangular roof panel 10b and a trapezoidal roof panel 10c are placed at the other outer corner 20b. A trapezoidal roof panel 10c and a rectangular roof panel 10b are placed at the inner corner 20c. In addition, rectangular roof panels 10b are placed at locations other than the two outer corners 20a and 20b and the inner corner 20c. The arrangement of these roof panels 10a, 10b, and 10c is merely an example, and the present invention may be arranged in ways other than this, and is not limited to this arrangement.

[0024] The two triangular roof panels 10a positioned at one of the outer corners 20a and the trapezoidal roof panel 10c positioned at the other outer corner 20b are connected to the roof support section 300 by connecting brackets 400, from a weight-bearing standpoint. Other roof panels besides the triangular roof panels 10a and the trapezoidal roof panel 10c may also be connected to the roof support section 300 using connecting brackets 400 as needed.

[0025] <Roof support section> Examples of roof support structures 300 include walls, beams, and girders. The following describes the case where a wall 301 is used as the roof support structure 300. Multiple notched recesses R are formed at the upper end of the wall 301. A connecting bracket 400 is fitted into each notched recess R. In Figure 1, connecting brackets 400 are installed on the wall 301 located at one of the outer corners 20a and the wall 301 located at the other outer corner 20b.

[0026] The following explanation will use the case where a connecting bracket 400 is installed on the wall 301 located at one of the aforementioned corner portions 20a as an example. Figure 2 is an exploded perspective view of the roof connection structure at one of the corner sections 20a in Figure 1. The wall 301 comprises a wall section 30 and a column section 31 sandwiched between the wall sections 30. That is, multiple wall sections 30 are arranged side by side at predetermined intervals, with a column section 31 sandwiched between each adjacent wall section 30.

[0027] (Column) The column portion 31 is a long member that extends vertically. Preferably, the column portion 31 is a square timber, for example.

[0028] (wall) The wall section 30 is equipped with wall panels 32. The wall panels 32 are made by attaching a surface material made of plywood or the like to the surface of a frame body, which is assembled from frame members into a rectangular shape (not shown). Reinforcing frame members are provided vertically and horizontally within the frame body.

[0029] In Figure 2, the wall section 30 comprises a wall panel 32a with a long length in the width direction and a small wall panel 32b with a shorter length in the width direction that constitutes the corner section 20a. The two small wall panels 32b are arranged to form a roughly L-shape when viewed from above, and a column 31a is positioned between these small wall panels 32b. The wall panels 32a are arranged side by side along the width direction of each small wall panel 32b.

[0030] The upper ends of these multiple wall panels 32 (wall panel 32a and small wall panel 32b) are all at approximately the same height. Furthermore, the upper end of each wall panel 32 is higher than the height of the column 31. In other words, the upper end of the column 31 is lower than the height of the wall panels 32. Therefore, the notched recess R is formed by the upper end surface 311 of the column 31 and the side surfaces 321 that form the upper ends of two adjacent wall panels 32. The height from the upper end surface 311 of the column 31 to the upper end surface 322 of the wall panel 32 is the depth of the notched recess R. The notched recess R is rectangular in plan view. The connecting bracket 400 is fitted into the notched recess R.

[0031] Furthermore, in the case of the column portion 31a positioned between the small wall panels 32b that form the corner portion 20a, its upper end is at approximately the same height as the upper end of the small wall panel 32b.

[0032] <Connecting bracket> The connecting bracket 400 includes a fitting portion 40 and a protruding portion 41. The fitting portion 40 is fitted into the notched recess R. The fitting portion 40 is a rectangular plate member with a shape and dimensions approximately equal to those of the notched recess R. Therefore, when the fitting portion 40 is fitted into the notched recess R, the upper end surface 322 of the wall panel 32 and the upper surface 401 of the fitting portion 40 are flush.

[0033] The protrusion 41 is attached to the outer surface 402 of the fitting portion 40 so as to protrude outward, approximately perpendicular to it. Here, the outer surface refers to the surface facing outwards, and the inner surface refers to the surface facing inwards. The protruding portion 41 has a rectangular prism shape that is roughly trapezoidal when viewed from the side. The outer surface 412 and inner surface 413 of the protrusion 41 are substantially parallel to each other. The inner surface 413 of the protrusion 41 abuts against the outer surface 402 of the fitting portion 40. The height of the outer surface 412 of the protrusion 41 is lower than the height of the inner surface 413. The upper surface 411 of the protrusion 41 is an inclined surface that slopes from the inner surface 413 toward the outer surface 412 according to the inclination angle θ of the roof 100. Here, the inclination angle of the upper surface 411 of the protrusion 41 can be changed by changing the height H1 on the outer surface 412 of the protrusion 41 or the height H2 on the inner surface 413 of the protrusion 41. Therefore, the height H1 on the outer surface 412 and the height H2 on the inner surface 413 of the protrusion 41 should be set according to the inclination angle θ of the roof 100. Furthermore, it is preferable to appropriately change the height H3 of the fitting portion 40 and the depth of the notched recess R, which will be described later, in accordance with the change in the height H1 of the outer surface 412 and the height H2 of the inner surface 413 of the protrusion 41.

[0034] The height H2 of the inner surface 413 of the protrusion 41 is slightly higher than the height H3 of the fitting portion 40. Therefore, when the fitting portion 40 is fitted into the notched recess R, the protrusion 41 protrudes from the upper end surface 322 of the wall panel 32. Preferably, adhesive is applied to the contact surfaces of the fitting portion 40 and the protrusion 41, that is, the outer surface 402 of the fitting portion 40 and the inner surface 413 of the protrusion 41, so that they are bonded together. Furthermore, it is preferable that the fitting portion 40 and the protrusion 41 are fixed by nailing or screwing.

[0035] The connecting bracket 400 has a fitting portion 40 fitted into a notched recess R. Preferably, adhesive is applied to the contact surfaces of the fitting portion 40 and the notched recess R to bond them together. Furthermore, it is preferable that the fitting portion 40 and the notched recess R are fixed together by nailing or screws. In this way, the fitting portion 40 is fixed to the notched recess R, so that the protrusion 41 protrudes outward from the outer surface of the wall panel 32.

[0036] <Gradient adjustment material> A slope adjustment member 500 is provided on the upper end surface 322 of the wall 301. The slope adjustment member 500 comprises a first slope adjustment member 500a and a second slope adjustment member 500b. These first and second slope adjustment members 500a and 500b are elongated members that run along the width direction of the wall 301. Specifically in Figure 2, the first slope adjustment member 500a is provided along the width direction of the left wall 301 that constitutes the corner 20a. The second slope adjustment member 500b is provided along the width direction of the right wall 301 that constitutes the corner 20a.

[0037] The first slope adjustment member 500a is elongated along the longitudinal direction of the wall 301 and, like the protrusion 41 of the connecting bracket 400, has a rectangular prism shape that is roughly trapezoidal in side view. Specifically, the outer surface 502 and inner surface 503 of the first slope adjustment member 500a are roughly parallel to each other. The height of the outer surface 502 of the first slope adjustment member 500a is lower than the height of the inner surface 503. The upper surface 501 of the first slope adjustment member 500a is an inclined surface that slopes from the inner surface 503 toward the outer surface 502 according to the inclination angle θ of the roof 100.

[0038] The second gradient adjustment member 500b has basically the same configuration as the first gradient adjustment member 500a, except that the shape of the longitudinal end face is different. In Figure 2, the same reference numerals are used for the same components of the second gradient adjustment member 500b as for the first gradient adjustment member 500a. The shape of the longitudinal end face 504 of the second gradient adjustment member 500b is formed to be flush with the upper surface 501 and outer surface 502 of the first gradient adjustment member 500a.

[0039] These first and second slope adjustment members 500a and 500b are installed continuously on the upper end surface 322 of the wall panel 32 and the upper surface 401 of the fitting portion 40 of the connecting bracket 400. As a result, the upper end surfaces 322 of multiple wall panels 32 and the upper surface 401 of the fitting portion 40 of the connecting bracket 400 are connected by the first and second slope adjustment members 500a and 500b. Consequently, the wall panel 32, the connecting bracket 400, and the first and second slope adjustment members 500a and 500b are firmly fixed together. The first and second slope adjustment members 500a and 500b are preferably fixed to the upper end surface 322 of the wall panel 32 and the upper surface 401 of the fitting portion 40 of the connecting bracket 400 by adhesive, nailing, or screws. With the first and second slope adjustment members 500a and 500b installed on the upper end surface 322 of the wall panel 32 and the upper surface 401 of the fitting portion 40 of the connecting bracket 400, the inner surfaces 503 of the first and second slope adjustment members 500a and 500b are flush with the inner surface of the wall panel 32 and the inner surface of the fitting portion 40. Also, the upper surfaces 501 of the first and second slope adjustment members 500a and 500b are flush with the upper surface 411 of the protrusion 41 of the connecting bracket 400 (see Figure 3).

[0040] Figure 3 is a side view taken along the line III-III in Figure 1. As shown in Figure 3, the connecting bracket 400 is installed in the notched recess R (not shown in Figure 3) of the wall 301. That is, the connecting bracket 400 is installed on the upper end surface of the column 31. In addition, the first slope adjustment member 500a is installed on the upper surface of the fitting portion 40 of the connecting bracket 400. The roof panel 10a is then placed across the multiple connecting brackets 400 and the wall 301. As a result, the upper surface 501 of the first slope adjustment member 500a and the upper surface 411 of the protrusion 41 of the connecting bracket 400 support the underside of the eaves of the roof panel 10a. Here, it is preferable from a strength standpoint that the core material of the roof panel 10a is placed on the upper surface 501 of the first slope adjustment member 500a. It is preferable to fix the roof panel 10a, the connecting bracket 400, and the first slope adjustment member 500a together by, for example, nailing, screwing, or adhesive.

[0041] The overhang refers to the length from the center of the wall (column 31 in Figure 3), which is the outer wall supporting the roof 100, to the eaves 101, which is the tip of the roof 100. The length L of the overhang is measured as a horizontal distance in a plan view, not along the slope, or flow, of the roof 100. In Figure 3, the length L of the eaves overhang is preferably longer than 1M (module). Specifically, the length L of the eaves overhang is preferably 1592.5 mm, 1365 mm, or 1137.5 mm. In addition, the length Q in a plan view from the ridge of the roof panel 10a to the center of the wall 301 in the thickness direction is preferably 1M (module) or more.

[0042] Roofing material is laid on the surface of the roof panel 10a, although it is not shown in the diagram. A triangular mounting member 11 is fixed to the leading edge of the roof panel 10a in cross-sectional view. A support member 12 is attached to the mounting member 11.

[0043] The support member 12 is attached to the lower side of the mounting member 11. The support member 12 receives and supports the tip of the soffit material 13. The support member 12 has a protruding ridge 121 that extends inward. The tip of the soffit material 13 is placed on this protruding ridge 121, and the tip of the soffit material 13 is supported from below by the protruding ridge 121.

[0044] Multiple joists 14 are arranged horizontally on the underside of the leading edge of the roof panel 10a. The joists 14 are assembled vertically and horizontally to form a grid. The leading edges of these grid-like joists 14 are fixed to the eaves 101 of the roof panel 10a. The base ends of the joists 14 are fixed to the wall 301. The joists 14 may also be suspended and fixed from the roof panel 10a by hangers (not shown). The soffit material 13 is attached to the joists 14 by nailing or other means.

[0045] A shutter device 600 is attached to the lower end of wall 301. The shutter device 600 is a device for covering the opening into which the window sash S is installed. The shutter device 600 includes a shutter case 601 and a shutter curtain 602, etc. The shutter case 601 is provided on the outer surface of the wall 301 and above the opening. A shutter opening (not shown) is formed on the lower end surface of the shutter case 601 through which the shutter curtain 602 passes.

[0046] The shutter curtain 602 moves up and down by being wound up or unwound in a winding mechanism provided in the shutter case 601, thereby opening and closing the opening from the outside.

[0047] The above description explains the structure at the location where the first gradient adjustment member 500a is installed, but the structure at the location where the second gradient adjustment member 500b is installed is similar.

[0048] Next, we will explain the roof connection structure when the roof slope angle is changed. The roof connection structure shown in Figure 4 is the case where the roof is installed so that its inclination angle is greater than the inclination angle θ shown in Figure 3. The roof connection structure shown in Figure 5 is the case where the roof is installed so that its inclination angle is even greater than the inclination angle θ shown in Figure 4. The size of the roof panels 10a in Figures 3 to 5 is the same in all cases. As shown in Figures 4 and 5, the height of the connecting bracket 400 increases as the inclination angle θ of the roof panel 10a increases. Specifically, the height H2 of the inner surface 413 of the protrusion 41 and the height H3 of the fitting portion 40 of the connecting bracket 400 shown in Figure 4 are higher than the height H2 of the inner surface 413 of the protrusion 41 and the height H3 of the fitting portion 40 of the connecting bracket 400 shown in Figure 3. Furthermore, the height H2 of the protrusion 41 and the height H3 of the fitting portion 40 of the connecting bracket 400 shown in Figure 5 are higher than the height H2 of the inner surface 413 of the protrusion 41 and the height H3 of the fitting portion 40 of the connecting bracket shown in Figure 4.

[0049] On the other hand, in Figures 3 to 5, the length of the eaves overhang L is the same regardless of the inclination angle θ of the roof panel 10a. Here, the length of the eaves overhang L is longer than one module. Also, in plan view, the length from the outer surface 412 of the protrusion 41, which is the tip of the connecting bracket 400, to the eaves portion 101 of the roof 100 is constant. Since the length L of the eaves is the same in all of Figures 3 to 5, the length of the connecting bracket 400 protruding from the outer surface of the wall 301 is also the same in all of Figures 3 to 5. In Figures 4 and 5, the basic configuration of the roof connection structure is the same as that shown in Figure 3; therefore, the same reference numerals are used for the same components, and their explanations are omitted.

[0050] 2. Second Embodiment Figure 6 is a plan view of the roof in the second embodiment. In the second embodiment, a portion of the roof is lowered. The roof 100 shown in Figure 6 comprises a main roof panel 10d and a sloping roof panel 10e. In addition, a triangular panel 60a is installed at the eaves of the corner between the main roof panel 10d and the sloping roof panel 10e. Similar to the first embodiment, the main roof panel 10d has an overhang length L exceeding 1M (module). Therefore, similar to the first embodiment, the main roof panel 10d is supported and fixed by a connecting bracket 400 fitted into a notched recess R. The connection structure between the main roof panel 10d and the connecting bracket 400 is the same as the connection structure in the first embodiment described above, so its explanation is omitted.

[0051] Furthermore, the sloping roof panel 10e has an overhang length L that does not exceed 1M (module). Therefore, it is not supported and fixed by the connecting bracket 400.

[0052] 3. Third Embodiment Figure 7 is a plan view of the roof in the third embodiment. In the third embodiment, as in the second embodiment, a portion of the roof is lowered. In the roof 100 shown in Figure 7, the size of the triangular roof panel 10f, which is positioned on the ridge side of the sloping roof panel 10e, is larger compared to the second embodiment. Furthermore, the length M from the ridge side to the eaves of the sloping roof panel 10e is shorter than the length M from the ridge side to the eaves of the sloping roof panel 10e in the second embodiment. Accordingly, a trapezoidal panel 60b is installed at the eaves of the corner between the main roof panel 10d and the sloping roof panel 10e. The main roof panel 10d has an overhang length L exceeding 1M (module), similar to the first embodiment. Thus, by using a trapezoidal panel 60b in plan view, the size is reduced compared to using a triangular panel 60a as in the second embodiment. As a result, the weight of the trapezoidal panel 60b can be reduced, the load on the eaves is lessened, and the degree of design freedom is also improved.

[0053] 4. Fourth Embodiment Figure 8 is a plan view of the roof in the fourth embodiment. In the fourth embodiment, similar to the third embodiment, a portion of the roof is lowered. In the roof 100 shown in Figure 8, the size of the triangular roof panel 10f, which is positioned on the ridge side of the sloping roof panel 10e, is even larger compared to the third embodiment. Also, the length M from the ridge side to the eaves of the sloping roof panel 10e is shorter than the length M from the ridge side to the eaves of the sloping roof panel 10e in the third embodiment. Accordingly, a trapezoidal panel 60c is installed at the eaves of the corner between the main roof panel 10d and the sloping roof panel 10e. The main roof panel 10d has an overhang length L exceeding 1M (module), similar to the first embodiment. Thus, in the fourth embodiment, the size of the trapezoidal panel 60c in plan view can be made even smaller compared to the third embodiment. As a result, the weight of the trapezoidal panel 60c in plan view can be made even lighter, further reducing the load on the eaves.

[0054] In Figures 6 to 8, the length N of the gable overhang is the same in all cases. Also, the gable drop distance P is the same in all cases. Furthermore, the length Q in a plan view from the ridge of the main roof panel 10d to the center of the wall 301 in the thickness direction is preferably 1M (module) or more.

[0055] This embodiment provides the following excellent effects. Multiple connecting brackets 400 are provided on the roof support section 300, protruding outward. The roof 100 is placed across the roof support section 300 and the multiple connecting brackets 400. The upper surface 411 of the connecting brackets 400 is an inclined surface that is tilted according to the inclination angle θ of the roof 100. The lower surface of the roof 100 rests on this inclined surface, so the lower surface of the roof can be supported by the inclined surface of the connecting brackets 400, and the support area is increased. As a result, the lower surface of the roof 100 can be reliably supported by the inclined surface, allowing for a larger overhang than before. For example, the length L of the overhang can be made to more than 1M (module). Furthermore, by using the connecting bracket 400, the overhang of the eaves can be increased, which simplifies the number of construction steps and reduces costs.

[0056] The roof support section 300 is a wall 301, and multiple notched recesses R are formed at the upper end of the wall 301. The connecting bracket 400 is fitted into the notched recesses R, resulting in a simple structure in which the connecting bracket 400 is fitted into the notched recesses R. Therefore, the connecting bracket 400 can be easily installed on the wall 301 on site, simplifying the construction process.

[0057] The wall 301 comprises a wall section 30 and a column section 31 sandwiched between the wall sections. The upper end of the column section 31 is lower than the height of the two wall sections 30 adjacent to the column section 31. The notched recess R is formed by the upper end surface 311 of the column section 31 and the side surfaces 321 of the upper ends of the two wall sections 30. By making the upper end of the column section 31 lower than the height of the wall sections 30, the notched recess R can be easily formed. This simplifies construction.

[0058] A slope adjustment member 500 is provided on the upper end surface 322 of the roof support section 300, and the upper surface 501 of the slope adjustment member 500 is an inclined surface that is tilted according to the inclination angle θ of the roof 100. Therefore, the inclined surface of the slope adjustment member 500 can also support the lower surface of the roof 100. As a result, the support area is larger and it is superior in terms of strength. Consequently, the overhang of the eaves can be made larger than in conventional designs.

[0059] Regardless of the inclination angle θ of the roof 100, in a plan view, the length from the tip of the connecting bracket 400 to the eaves 101 of the roof 100 is constant. Therefore, even in buildings with multiple types of roofs 100 having different inclination angles θ, the length L of the eaves is unified, resulting in superior appearance quality.

[0060] Since the connecting bracket 400 is installed in the roof support section 300 at the position that will be the eaves, the eaves can be easily increased by using the connecting bracket 400.

[0061] Furthermore, in recent years, there has been a growing demand for the realization of a decarbonized society through the promotion of carbon neutrality, which aims to achieve virtually zero carbon dioxide emissions, and for the achievement of the SDGs (Sustainable Development Goals). In the construction industry, efforts are also being made to use wood in buildings to reduce carbon dioxide emissions. The roofs and walls mentioned above utilize wood-based materials, and therefore contribute to the realization of a decarbonized society through the promotion of carbon neutrality and the achievement of the SDGs.

[0062] The embodiments to which the present invention can be applied are not limited to those described above, and can be modified as appropriate without departing from the spirit of the invention. For example, the number, size, and shape of the connecting brackets 400 and slope adjustment members 500 in the above embodiment can be changed as appropriate. Also, the shutter device 601 described above does not need to be installed. Furthermore, the mounting structure of the soffit material 13 can also be changed as appropriate. Furthermore, although the above-mentioned building frame 200 was described as being constructed using a panel construction method, when using a post-and-beam construction method, it is preferable, for example, to attach groove-shaped beam support fittings to the beam members and then attach the above-mentioned connecting brackets 400 to these beam support fittings. [Explanation of Symbols]

[0063] 30 Wall 31 Column section 100 roof 200 Building structure 300 Roof support section 301 Wall 311 Upper end surface 322 Upper end surface 400 Connecting Bracket 411 Top surface R notch recess θ Tilt angle

Claims

1. A roof connection structure in which the roof is connected to the roof support portion of the building frame, Multiple connecting brackets are provided on the roof support section, protruding outward. The roof is mounted across the roof support and the multiple connecting brackets, The upper surface of the connecting bracket is an inclined surface that is tilted according to the slope angle of the roof. The aforementioned roof support is a wall, Multiple notched recesses are formed at the upper end of the aforementioned wall. The connecting bracket is fitted into the notched recess. A roof connection structure characterized by the following features.

2. The aforementioned wall comprises a wall portion and a column portion sandwiched between the wall portions, The upper end of the column is lower than the height of the two wall sections adjacent to the column. The aforementioned notched recess is formed by the upper end surface of the column portion and the side surfaces of the upper ends of the two wall portions. The roof connection structure according to feature 1.

3. A slope adjustment member is provided on the upper end surface of the roof support portion. The upper surface of the slope adjustment material is an inclined surface that is sloped according to the slope angle of the roof. The roof connection structure according to feature 1.

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