JP3810866B2 - Dormer structure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a dormer structure provided on a slope surface of a roof of a building.
[0002]
[Background]
In recent years, the number of three-story buildings that can secure a large floor area is increasing in buildings such as houses. The three-story part of such a three-story building may be formed inside a sloped roof, in which case the dorm with the opening is sloped to the roof to obtain the lighting and ventilation of the third-story part. Often provided on the surface.
[0003]
On the other hand, in a three-story building, it is obliged to install an emergency entrance on the third floor for public fire fighters to enter the building in the event of a disaster. This emergency entrance must be provided on the vertical surface of the third floor facing the road with a width of 750 mm or more and a height of 1200 mm or more.
[0004]
[Problems to be solved by the invention]
However, if you try to provide such an emergency entrance for a building whose third floor is located inside a sloped roof, if the roof is a dormitory or if the girder side of the building faces the road, etc. However, since it is necessary to form a vertical plane at the back of the sloped surface of the roof and form an emergency entrance on the vertical plane, it is difficult and troublesome to work with rain (for example). No. 8-10998).
[0005]
In order to solve such a problem, it is conceivable to provide an emergency entrance in the dormer mentioned above. However, since the emergency entrance needs to be at least larger than the above-mentioned dimensions, an existing daylighting aperture is required. There was a problem that it was too small to be used for emergency entrances. In addition, if the opening is to be formed large, there is a problem that the strength of the entire dormer is lowered in the conventional structure.
[0006]
An object of the present invention is to provide a dormer structure that can secure sufficient strength even when a large opening that can be used as an emergency entrance is provided.
[0007]
[Means for Solving the Problems]
Referring to the drawings, the present invention is a dormer structure having a box-shaped frame 20A provided on a slope surface 5B of a roof 5 of a building 1, and is provided so as to rise in a vertical direction from the slope surface 5B. And the vertical surface panel 60 in which the opening part 61 connected with the inside of the said roof 5 was formed, and this vertical surface panel 60 is between a pair of vertical vertical members 22 and the upper end part of these pair of vertical members 22. It has a gate-shaped vertical surface frame 21 including a cross member 23 to be connected, the vertical member 22 and the cross member 23 are rigidly joined , one end is joined to the lower end of the vertical member 22 of the vertical surface frame 21, and the The frame 20A includes a pair of inclined members 24 provided along the gradient direction of the inclined surface 5B, and a pair of horizontal members 25 respectively connecting the other ends of the inclined members 24 and the upper ends of the longitudinal members 22. Is configured, Braces 27 are installed on these horizontal members 25, and the roof 5 is configured to include the roof unit 13 having a rectangular inclined surface frame 33 along the inclined surface 5B. It includes a pair of diagonal members 34 along the gradient direction of the gradient surface 5B, and the inclined members 24 are fixed to the diagonal members 34, respectively .
[0008]
Here, the rigid joint refers to a joint in which the joined portion of the member is firmly integrated, and generates a horizontal reaction force, a vertical reaction force, and a bending moment. For example, in addition to joining by welding, riveting, etc., joining that is substantially rigid joining even in the case of bolt joining is included in rigid joining.
[0009]
In the present invention, since the vertical member 22 and the cross member 23 that constitute the vertical surface frame 21 of the vertical surface panel 60 are rigidly joined, the rigidity of the vertical surface panel 60 is increased, and thereby the entire skeleton 20A is increased. Stiffness can be improved. Therefore, sufficient strength can be maintained even if the opening 61 of the vertical panel 60 is formed large.
Further, since the vertical panel 60 is provided so as to rise in the vertical direction from the gradient surface 5B, if the opening 61 is formed large, it can be used as an emergency entrance, and the emergency entrance is used as the roof 5. Even if it has to be formed on the inclined surface 5B, it can be formed simply by installing the dormer 20.
Thus, the object is achieved.
[0011]
Moreover, the vertical member 22, the inclined member 24, and the horizontal member 25 of the vertical surface frame 21 are connected to a triangle by including the inclined member 24 and the horizontal member 25 connected to the lower end and the upper end of the vertical member 22 of the vertical surface frame 21. In addition, since the brace 27 is installed on the pair of horizontal members 25, extremely high rigidity can be obtained in the entire framework 20A.
[0013]
The roof unit 13 includes a pair of diagonal members 34 along the gradient direction of the gradient surface 5B, and the diagonal members 34 are provided along the gradient direction of the gradient surface 5B in the same manner as the gradient material 24. Therefore, the inclined member 24 can be fixed along the inclined member 34, and the framework 20 </ b> A can be reliably fixed to the roof unit 13.
[0014]
The roof unit 13 includes a bottom frame 31, a vertical frame 32 rising vertically from one end of the bottom frame 31, and the inclined frame 33 connecting the upper end of the vertical frame 32 and the other end of the bottom frame 31. The inclined member 24 is joined to the end of the inclined member 34 of the inclined frame 33, and a gap 90 is provided between the intermediate part of each inclined member 34 and the inclined member 24. It is desirable that it be formed.
[0015]
By forming the gap 90 between the intermediate portion of the diagonal member 34 and the inclined member 24 as described above, the load of the dormer 20 is not applied to the intermediate portion of the inclined member 34 and the inclined member 24 is bent. However, the bending is not transmitted to the diagonal member 34 as it is. Therefore, it becomes possible to prevent the slanted material 34 from being bent, and to suppress the occurrence of distortion in the roof unit 13.
[0016]
The opening 61 is preferably provided over substantially the entire surface of the vertical panel 60.
In this way, the opening 61 can be formed large, so that sufficient lighting and ventilation can be secured and the size required for the emergency entrance can be easily obtained, so the opening 61 can be used as the emergency entrance. Can also be used.
[0019]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
FIG. 1 shows a unit building 1 including a dormer 20 according to this embodiment. The unit type building 1 includes a building housing 3 including a plurality of building units 4A and 4B arranged in combination on the foundation 2, and a substantially gable-like sloped roof 5 provided on the building housing 3. .
The building units 4A and 4B assemble a flooring material, a wall material, and the like on a rectangular parallelepiped frame (not shown) including four columns, an upper beam connecting the upper ends of these columns and a lower beam connecting the lower ends of the columns. It is constituted by. These building units 4A and 4B are composed of a first-floor unit 4A arranged on the foundation 2 and a second-floor unit 4B stacked on the first-floor unit 4A. The floor part is configured, and the second floor part is configured by the second floor unit 4B.
[0020]
The roof 5 has a rectangular parallelepiped frame structure similar to that of the building unit 4, and a hut unit 11 constituting the third floor of the shed of the unit type building 1, and a ridge of the roof 5 disposed on the shed unit 11. The ridge unit 12 that constitutes 5A, the roof units 13 and 14 that are arranged on both sides of the hut unit 11 and constitute the slope 5B of the roof 5, and the roof units 13 and 14 that are arranged in parallel with the roof unit 13 and 14 It is comprised including the eaves unit 15 which comprises the eaves 5C. The upper surface of the building unit 12 is formed in a mountain shape inclined on both sides of the building 5C, and the upper surfaces of the roof units 13 and 14 and the upper surface of the eaves unit 15 are inclined in one direction along this inclination.
[0021]
On the slope surface 5B of the roof 5 formed by the upper surfaces of the ridge unit 12, the roof units 13 and 14, and the eaves unit 15, a box-like shape having an opening 61 such as a window communicating with the inside of the cabin unit 11 is provided. A dormer 20 is provided. As shown in FIG. 2, the dormer 20 is fixed to the roof unit 13 that forms the central portion of the inclined surface 5B.
As shown in FIG. 3, the roof unit 13 includes a bottom frame 31 in which a lower beam 311 made of a channel material or the like is rectangularly framed via a joint 312, and a vertical rising from one end of the bottom frame 31 in a vertical direction. The surface frame 32 and a rectangular inclined surface frame 33 that connects the upper end of the vertical surface frame 32 and the other end of the bottom surface frame 31 are configured.
[0022]
The vertical surface frame 32 is formed in a gate shape including a pair of pillars 321 made of square pipes and the like, and an upper beam 322 connecting the upper ends of these pillars 321 through a joint 323.
The inclined surface frame 33 includes a pair of slant members 34 that connect the joint 323 of the vertical surface frame 32 and the joint 312 constituting the other end of the bottom frame 31, respectively. These diagonal members 34 are provided along the gradient direction of the inclined surface 5B (see FIG. 1) of the roof 5, and connecting members 35 are bridged between the upper ends and the lower ends of the inclined members 34, respectively.
[0023]
As shown in FIG. 9, the lower end of the diagonal member 34 and the joint 312 of the bottom frame 31 are joined by attaching a mounting box 341 fixed to the lower end of the oblique member 34 to the joint 312 via a base plate 313. The fixing is performed by fixing the fixed bracket 314 with bolts 45 and nuts 43.
The mounting box 341 is attached to the diagonal member 34 so as to protrude by a predetermined dimension from the upper surface (upper flange portion 34A, see FIG. 12) of the diagonal member 34 made of a channel material or the like.
[0024]
Further, as shown in FIG. 12, an attachment member 342 is fixed to the upper end of the diagonal member 34, a bracket 324 is fixed to the joint 323 of the column 321, and the attachment member 342 is covered on the bracket 324. It is fastened and fixed by a bolt 325 and a nut (not shown). Positioning pins 326 are erected on the bracket 324 so that the diagonal members 34 of the inclined surface frame 33 can be positioned with respect to the pillars 321 of the vertical surface frame 32.
[0025]
As shown in FIG. 13, a U-shaped first bracket 343 for joining with the inclined member 24 of the dormer 20 described later is fixed between the flange portions 34 </ b> A and 34 </ b> B of the oblique member 34, A positioning pin 344 projects from the flange portion 34A. A nut 43 for joining to the inclined member 24 is fixed to the inner surface of the first bracket 343.
[0026]
As shown in FIG. 4, the dormer 20 attached to the roof unit 13 includes a box-shaped frame 20 </ b> A having both sides of a right triangle and a gable-shaped roof frame 20 </ b> B provided on the frame 20 </ b> A. ing.
The framework 20 </ b> A includes a pair of vertical vertical members 22 and a gate-shaped vertical surface frame 21 including a cross member 23 connecting the upper ends of the pair of vertical members 22, and the vertical members 22 of the vertical surface frame 21. A pair of inclined members 24 whose one ends are joined to the lower ends and provided along the gradient direction of the inclined surface 5B (see FIG. 1), and the other ends of the inclined members 24 and the upper ends of the longitudinal members 22 are respectively connected. The horizontal member 25 is included.
[0027]
Between the vertical members 22 of the vertical surface frame 21, a horizontal member 26 is installed at a portion near the lower end. A vertical surface panel 60 that includes such a vertical surface frame 21 and rises in the vertical direction from the gradient surface 5B of the roof 5 is configured. The vertical panel 60 is provided with the opening 61 described above over substantially the entire surface. The opening 61 is formed in a space surrounded by the pair of vertical members 22, the horizontal member 23, and the horizontal member 26, and specifically has a width dimension of 750 mm or more and a height dimension of 1200 mm or more. .
Further, between the lower portions of the pair of inclined members 24 and between the upper ends thereof, bridge members 54 and 55 are bridged, respectively, and braces 27 are diagonally bridged on the pair of horizontal members 25. The inclined member 24 and the horizontal member 25 are connected by a plurality of vertical bars 26 erected at a predetermined interval.
[0028]
As shown in FIGS. 5 and 6, the vertical member 22 of the vertical frame 21 is made of a square pipe or the like, and the cross member 23 is made of a channel material or the like. These vertical members 22 and cross members 23 are rigidly joined. That is, a plate-shaped mounting plate 41 having a pair of vertically arranged bolt holes 41 A is erected on the side surface of the vertical member 22 to which the horizontal member 23 is joined, and the end surface of the mounting plate 41 is welded to the vertical member 22. It is fixed. An L-shaped bracket 42 is welded and fixed between the pair of flange portions 23 </ b> A and 23 </ b> B of the cross member 23, and a pair of nuts 43 arranged vertically are welded and fixed to the bracket 42. The mounting plate 41 and the bracket 42 are fastened via a washer 44 by a nut 43 and a bolt 45.
[0029]
In such a vertical member 22, a horizontal member 25 made of a channel member or the like is welded and fixed to a side surface orthogonal to a side surface to be joined to the cross member 23, and extended from each flange portion 25 </ b> A, 25 </ b> B of the horizontal member 25. Reinforced by a reinforcing plate 71.
[0030]
As shown in FIGS. 7 and 8, the lower end of the vertical member 22 is welded and fixed to a flange portion 24A on the upper side of the inclined member 24 made of a channel material or the like and an extension plate 51 extending to the flange portion 24A. Yes. A reinforcing box 52 is fixed by welding between the pair of flange portions 24A and 24B, and the strength of the joint portion is ensured.
From the reinforcing box 52 of the inclined member 24, mounting plates 53 project in the direction in which the pair of inclined members 24 face each other, and a construction member 54 that connects the lower portions of the inclined member 24 to these attaching plates 53 (see FIG. 4). ) Are fixed by bolts 45 and nuts 43.
[0031]
As shown in FIG. 9, the lower end portion of the inclined member 24 is fixed to a mounting box 341 provided at the lower end of the oblique member 34 of the roof unit 13 by bolts 45 and nuts 43. Since the mounting box 341 protrudes by a predetermined dimension from the slanting member 34 as described above, the projecting dimension of the mounting box 341 between the slanting member 24 and the slanting member 34 is the amount other than the joint portion between the mounting box 341 and the slanting member 24. The gap 90 is formed.
[0032]
As shown in FIGS. 10 and 11, a mounting plate 56 projects from the upper end of the inclined member 24 in a direction in which the pair of inclined members 24 face each other. A mounting member 55 that connects the upper ends of the inclined members 24 is attached to the attachment plate 56, and fastened with nuts 43 and bolts 45 fixed to the attachment plate 56. Further, the end of the horizontal member 25 is fixed to the upper flange portion 24 </ b> A of the inclined member 24. The end of the horizontal member 25 is cut obliquely according to the inclination angle of the inclined member 24, and the cut surface is welded to the flange portion 24A. An end face plate 72 covering the end face of the horizontal member 25 is welded and fixed between the upper flange portion 25A of the horizontal member 25 and the upper flange portion 24A of the inclined member 24.
[0033]
Further, a reinforcing rib 57 is provided between the flange portions 24A and 24B of the inclined member 24 at a position where the lower flange portion 25B of the horizontal member 25 is fixed, and the inclined member is adjacent to the reinforcing rib 57. A U-shaped second bracket 58 for fixing 24 to the diagonal member 34 of the roof unit 13 is fitted and fixed by welding. On the inner surface of the second bracket 58, a nut 43 for joining to the diagonal member 34 is fixed by welding.
[0034]
As shown in FIGS. 12 and 13, the inclined member 24 is joined to the oblique member 34 via a connection plate 91 disposed across the second bracket 58 and the first bracket 343. The connecting plate 91 is fixed by nuts 43 and bolts 45 provided on the brackets 58 and 343.
Positioning pins 344 erected on the diagonal member 34 are inserted into the flange portion 24B of the inclined member 24 via the spacer 91 so that the inclined member 24 can be positioned with respect to the inclined member 34. This spacer 91 has the same thickness as the dimension of the portion protruding from the diagonal member 34 of the mounting box 341 described above, and accordingly, in the section from the spacer 91 to the mounting box 341 in the diagonal member 34, the inclined member 24 and A gap 90 is formed at regular intervals.
[0035]
Returning to FIG. 4, the roof frame 20 </ b> B on the framework 20 </ b> A is formed from the isosceles triangular wife face frame 81 installed on the cross member 23 of the vertical face frame 21 and the top of the face face frame 81. A pair of building materials 82 extending in parallel with the horizontal material 25, a pair of eaves 83 installed along the horizontal material 25 on both sides of these building materials 82, and a predetermined space between the building material 82 and the eaves 83 And a rafter 84 spanned at intervals.
As shown in FIGS. 14 and 15, the building material 82 is connected and fixed at a predetermined angle by bolts 45 and nuts 43 via a bent bracket 85 having a U-shape. The building material 82 is made of a channel material or the like, and a reinforcing plate 86 is fixed between the flange portions 82A and 82B to prevent distortion.
The joining of the building material 82 and the rafter 84 and the joining of the rafter 84 and the eaves 83 are performed by welding.
[0036]
As shown in FIGS. 16 and 17, the eaves member 83 is made of a channel material, and a fixing plate 88 is fixed over the flange portions 83 </ b> A and 83 </ b> B. Such an eaves material 83 is fixed to the horizontal member 25 via brackets 87 erected on the flange portion 25A of the horizontal member 25 at a predetermined interval.
That is, the bracket 87 includes an inclined plate 87A that is inclined at a predetermined angle toward the eave material 83 and has an L-shaped receiving member 87B fixed to the lower portion, and a fixing plate for the eave material 83 is disposed above the inclined plate 87A. 88 is fixed, and the lower flange portion 83B of the eaves 83 is fixed to the upper surface of the receiving member 87B. The eaves 83 and the bracket 87 are joined by a bolt 45 and a nut 43, and the frame 20A and the roof frame 20B are integrated by this joining.
[0037]
According to this embodiment, there are the following effects.
That is, since the vertical members 22 and the cross members 23 constituting the vertical surface frame 21 of the vertical surface panel 60 are rigidly joined, the rigidity of the vertical surface panel 60 is increased, thereby improving the rigidity of the entire skeleton 20A. Can be made. Therefore, sufficient strength can be maintained even if the opening 61 of the vertical panel 60 is formed large.
Further, since the vertical surface panel 60 is provided so as to rise in the vertical direction from the gradient surface 5B, the opening 61 can be used as an emergency entrance. Therefore, even if the slope 5B of the roof 5 faces the road, the emergency entrance can be formed simply by installing the dormer 20.
[0038]
Further, the skeleton 20A includes a vertical plane frame 21, a pair of inclined members 24 whose one ends are joined to the lower ends of the longitudinal members 22, and a pair of the other ends of these inclined members 24 and the upper ends of the longitudinal members 22. Since the horizontal member 25 is included, the vertical member 22, the inclined member 24, and the horizontal member 25 are connected to each other in a triangular shape, and the brace 27 is installed on the pair of horizontal members 25. , Extremely high rigidity is obtained in the entire framework 20A.
[0039]
Further, the slanting material 34 of the slanted surface frame 33 of the roof unit 13 is provided along the gradient direction of the slanting surface 5B in the same manner as the slanting material 24, and since the slanting material 24 is fixed to the slanting material 34, the slanting material 24 is inclined. The material 24 is fixed along the diagonal material 34, and the framework 20 </ b> A can be reliably fixed to the roof unit 13.
[0040]
Further, since a gap 90 is formed at a predetermined interval between the portion of the diagonal member 34 between the spacer 92 and the mounting box 341 and the inclined member 24, the load of the dormer 20 is applied to the intermediate portion of the diagonal member 34. In addition, even if the inclined member 24 is bent, the bending is not transmitted to the inclined member 34 as it is. Therefore, it becomes possible to prevent the slanted material 34 from being bent, and to suppress the occurrence of distortion in the roof unit 13.
[0041]
Moreover, since the opening 61 is provided over almost the entire surface of the vertical surface panel 60, it is possible to ensure sufficient lighting and ventilation, and it is used as an emergency because it has a width dimension of 750 mm or more and a height dimension of 1200 mm or more. Can also be used for entrance.
[0042]
In addition, this invention is not limited to the said embodiment, Other modifications etc. which can achieve the objective of this invention are included, The deformation | transformation etc. which are shown below are also contained in this invention.
That is, the dormer 20 of the above embodiment is configured to include the framework 20A including the vertical plane frame 21, the inclined member 24, and the horizontal member 25. However, as shown in FIG. A pair of side structural surface materials 101 erected on the surface 5B, and an upper surface structural surface material 102 connecting the upper end portions of the pair of side surface structural surface materials 101, and these side surface structural surface materials 101 and the upper structural surface material 102 are rigidly joined by welding, finger joints, or the like, and the lower end in the gradient direction of the side structural surface material 101 and the upper structural surface material 102 is connected to the interior of the roof 5 in parallel with the vertical surface. 103 may be formed. An openable / closable sash or the like is assembled in the opening 103 of the dormer 100 (not shown), and a roof frame (not shown) similar to the above-described embodiment is installed on the dormer 100.
[0043]
If the dormer 100 is configured in this manner, the side structural member 101 and the upper structural member 102 are rigidly joined, so that the rigidity of the entire dormer 100 can be improved. Therefore, sufficient strength can be maintained even if the opening 103 provided at the lower end in the gradient direction of the side structural surface material 101 and the upper surface structural surface material 102 is formed large.
In addition, since the opening 103 is provided in parallel with the vertical surface, the opening 103 can be used as an emergency entrance by forming the opening 103 large, and the emergency entrance can be used as the slope surface 5B of the roof 5. Even if it has to be formed, it can be formed simply by installing the dormer 100.
[0044]
In the above embodiment, the opening 61 has a width dimension of 750 mm or more and a height dimension of 1200 mm or more, which is also used as an emergency entrance. The specific dimensions of the opening 61 may be set as appropriate in implementation.
[0045]
And although the dormer 20 of the said embodiment was provided with the gable-like roof frame 20B, it is good also as another shape, or the roof frame 20B does not need to be.
[0046]
Furthermore, although the dormer 20 of the said embodiment was being fixed to the roof unit 13, you may fix to the roof unit 14. FIG. In addition, the building is not limited to the unit type building 1 and may be a building constructed by a panel method or a conventional method, for example, as long as it has a sloped roof on which the dormer 20 is installed. The type is arbitrary.
[0047]
【The invention's effect】
As described above, according to the present invention, since the vertical member and the cross member constituting the vertical surface frame of the vertical surface panel are rigidly joined, the rigidity of the vertical surface panel can be increased, and thereby the entire framework can be improved. Stiffness can be improved. Therefore, sufficient strength can be maintained even if the opening of the vertical panel is formed large.
In addition, since this vertical panel is provided so as to rise vertically from the slope surface, if the opening is made large, it can be used as an emergency entrance, and the emergency entrance can be used as a roof slope surface. Even if it must be formed, it can be formed simply by installing a dormer.
[0048]
Further, according to the present invention, since the side structure member and the upper structure member constituting the dormer are rigidly joined, the rigidity of the entire dormer can be improved. Accordingly, sufficient strength can be maintained even if the opening provided at the lower end in the gradient direction of the side structure face material and the upper structure face material is formed large.
In addition, since this opening is provided in parallel with the vertical plane, if the opening is formed large, it can be used as an emergency entrance, and if the emergency entrance is not formed on the slope surface of the roof Even if it is not possible, it can be easily formed simply by installing a dormer.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of the present invention.
FIG. 2 is a perspective view showing the dormer and roof unit of the embodiment.
FIG. 3 is a perspective view showing the roof unit of the embodiment.
4 is a perspective view showing the dormer of the embodiment. FIG.
FIG. 5 is a plan view showing the upper end portion of the longitudinal member according to the embodiment with a part thereof broken away.
6 is an exploded perspective view showing the vicinity of the upper end portion of the longitudinal member of the embodiment. FIG.
FIG. 7 is a plan view showing a portion of the vertical member according to the embodiment with the lower end portion thereof partially broken.
FIG. 8 is a perspective view showing the periphery of the lower end portion of the longitudinal member of the embodiment.
FIG. 9 is a partially broken view showing the joint structure between the inclined member and the inclined member of the embodiment.
FIG. 10 is an exploded perspective view showing the periphery of the upper end portion of the inclined member according to the embodiment.
FIG. 11 is a view showing a periphery of an upper end portion of the inclined member according to the embodiment.
FIG. 12 is a diagram showing a partially broken view of the joint structure between the inclined member and the inclined member according to the embodiment.
FIG. 13 is a cross-sectional view showing a joint structure between the inclined member and the inclined member according to the embodiment.
FIG. 14 is a view showing a roof frame building material of the embodiment.
FIG. 15 is a perspective view showing a building material of the roof frame of the embodiment.
FIG. 16 is a perspective view showing a joint structure between an eave material and a horizontal material according to the embodiment.
FIG. 17 is a cross-sectional view showing a joint structure between an eave material and a horizontal material according to the embodiment.
FIG. 18 is a perspective view showing another dormer of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Unit type building 5 Roof 5B Gradient surface 13,14 Roof unit 20,100 Dormer 20A Frame 21 Vertical surface frame 22 Vertical material 23 Horizontal material 24 Inclined material 25 Horizontal material 27 Brace 31 Bottom frame 32 Vertical surface frame 33 Inclined surface frame 34 Diagonal material 60 Vertical surface panels 61, 103 Opening 101 Side structure surface material 102 Upper surface structure surface material

Claims (3)

A dormer structure having a box-shaped frame provided on the slope of the roof of the building,
The vertical surface panel includes a vertical surface panel that is provided so as to rise from the slope surface in the vertical direction and that communicates with the inside of the roof. The vertical surface panel includes a pair of vertical vertical members and a pair of vertical members. A vertical frame having a gate shape including a cross member connecting between the upper ends of the two, the vertical member and the cross member are rigidly joined,
A pair of inclined member provided at one end on the lower end of the longitudinal material before Symbol vertical plane frame along the gradient direction of the bonded and the slope face, these inclined member and the other end and the upper end of the vertical member, respectively The frame includes a pair of horizontal members to be connected, and braces are installed on these horizontal members,
Configured said roof having a roof unit with a rectangular inclined surface frame along the front Symbol inclined surface, the inclined surface frame includes a pair of oblique members along the slope direction of the slope surface, these A dormer structure in which the inclined members are fixed to the inclined members. The dormer structure according to claim 1 , wherein the roof unit connects the bottom frame, a vertical frame rising in a vertical direction from one end of the bottom frame, and an upper end of the vertical frame and the other end of the bottom frame. The inclined member is joined to an end of the inclined member of the inclined member frame, and a gap is formed between an intermediate portion of each inclined member and the inclined member. A dormer structure characterized by The dormer structure according to claim 1 or 2 , wherein the opening is provided over substantially the entire surface of the vertical panel .

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