JPH1077714A - Dormer structure - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dormer structure capable of securing sufficient strength even when such a large opening as usable for an emergency entrance is provided. SOLUTION: This dormer structure, which includes an opening 61 communicating with the roof interior, is composed by having a vertical surface panel 60 erecting from the roof slope in the vertical direction contain a vertical surface frame 21 equipped with a pair of perpendicular vertical materials 22 and a lateral material 23 connecting the top ends of the vertical materials 22 together, while the vertical material 22 and the lateral material 23 are rigidly joined together. A frame 20A of the dormer 20 is composed by containing the vertical surface frame 21, a pair of inclined materials 24 having one of their ends connected to the lower ends of the vertical material 22 and provided along the roof slope in the inclined direction, and a pair of horizontal materials 25 connecting the other end of the inclined material 24 with the top end of the vertical material 22, and the horizontal materials 25 have a brace 27 laid across.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dormer structure provided on a slope of a building roof.

[0002]

BACKGROUND ART In recent years, in buildings such as houses, three-story buildings capable of securing a large floor area have increased. The third floor of such a three-storey building may be formed inside a sloping roof, in which case a dormer with an opening may be fitted with a roof slope to provide lighting and ventilation for the three-story part. Often provided on a surface.

On the other hand, in a three-story building, it is required to provide an emergency entrance on the third floor for a public fire department or the like to enter the building in the event of a disaster. This emergency entrance is 750 mm wide on the vertical surface of the third floor facing the road
As described above, it is necessary to provide a height of 1200 mm or more.

[0004]

However, if such an emergency entrance is to be provided for a building having a three-story portion provided inside a sloping roof, if the roof is a ridge or a girder of the building, If the side faces the road, it is difficult and it is difficult to rain because it is necessary to form a vertical plane at the back of the slope of the roof and to form an emergency entrance on the vertical plane. Was troublesome (Japanese Patent Application No. 8-10998).

In order to solve such a problem, it is conceivable to provide an emergency entrance in the above-mentioned doma.
Since the emergency entrance is required to be at least as large as the dimensions described above, there is a problem that the existing opening for daylighting is too small to be used for the emergency entrance. In addition, if the opening is to be formed large, there is a problem that the strength of the entire dormer decreases with the conventional structure.

SUMMARY OF THE INVENTION An object of the present invention is to provide a dormer structure that can secure sufficient strength even if an opening large enough to be used as an emergency entrance is provided.

[0007]

The present invention will be described with reference to the drawings. The present invention relates to a dormer structure having a box-shaped frame 20A provided on a slope 5B of a roof 5 of a building 1, wherein 5B, a vertical panel 60 having an opening 61 communicating with the inside of the roof 5 is provided. The vertical panel 60 includes a pair of vertical members 22 and a pair of vertical members 22. Vertical frame 2 including a horizontal member 23 connecting the upper ends of the vertical members 22
1, wherein the vertical member 22 and the horizontal member 23 are rigidly joined.

[0008] Here, the rigid joining means joining such that the joining portions of the members are 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, or the like, joining that becomes substantially rigid even in the case of bolt joining is included in rigid joining.

In the present invention, since the vertical members 22 and the horizontal members 23 constituting the vertical frame 21 of the vertical panel 60 are rigidly joined, the rigidity of the vertical panel 60 is increased, thereby increasing the skeletal structure. The rigidity of the entire 20A can be improved. Therefore, the opening 61 of the vertical panel 60
, A sufficient strength can be maintained. Further, since the vertical surface panel 60 is provided so as to rise in the vertical direction from the inclined surface 5B, if the opening 61 is formed large, it can be used as an emergency entrance. Can be easily formed only by installing the dormer 20. With these, the above object is achieved.

Further, the frame 20A includes the vertical frame 21 and the vertical members 2 of the vertical frame 21.
A pair of inclined members 24 each having one end joined to the lower end of the pair 2 and provided along the gradient direction of the inclined surface 5B, and a pair of inclined members 24 connecting the other ends of the inclined members 24 and the upper ends of the vertical members 22 respectively. It is desirable to include a horizontal member 25, and a brace 27 is installed on the horizontal member 25.

Thus, the vertical member 2 of the vertical frame 21 is
2. Since the inclined member 24 and the horizontal member 25 are connected in a triangular shape, and the pair of horizontal members 25 are provided with the braces 27, extremely high rigidity can be obtained in the entire frame 20A.

Further, the roof unit 5 includes a roof unit 1 having a rectangular inclined surface frame 33 along the inclined surface 5B.
3, the inclined surface frame 33 includes a pair of oblique members 34 along a gradient direction of the inclined surface 5B,
It is desirable that the inclined members 24 are fixed to these oblique members 34, respectively.

As described above, since the diagonal member 34 is provided along the gradient direction of the gradient surface 5B, similarly to the diagonal member 24, the diagonal member 24 can be fixed along the diagonal member 34, thereby. , Frame 20A to roof unit 13
Can be securely fixed.

The roof unit 13 includes the bottom frame 3
1, a vertical frame 32 rising vertically from one end of the bottom frame 31, and a vertical frame 32
And the inclined surface frame 33 connecting the other end of the bottom frame 31 and the inclined surface frame 33.
Is preferably joined to the end of the diagonal member 34 of the inclined frame 33, and a gap 90 is formed between the intermediate part of each diagonal member 34 and the inclined member 24.

By forming the gap 90 between the intermediate portion of the oblique member 34 and the inclined member 24 in this way, the load of the dormer 20 is not applied to the intermediate portion of the oblique member 34 and the inclined member 24 Even if it is bent, the bending is not transmitted to the oblique member 34 as it is. Therefore, the diagonal material 3
4 can be prevented, and the occurrence of distortion in the roof unit 13 can be suppressed.

Preferably, the opening 61 is provided over substantially the entire surface of the vertical panel 60. With this configuration, 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. It can be shared.

On the other hand, the dormer structure of the present invention comprises a pair of side structural members 10 erected on the slope 5 B of the roof 5 of the building 1.
1 and an upper surface structural member 102 connecting the upper end portions of the pair of side surface structural members 101 to each other. The side structural surface member 101 and the upper surface structural member 102 are rigidly joined,
An opening 103 is formed at the lower end of the side structural surface member 101 and the upper surface structural member 102 in the gradient direction, and is provided in parallel with the vertical plane and communicates with the inside of the roof 5.

In the present invention, since the side structural member 101 and the upper structural member 102 are rigidly joined, 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 material 102 is formed large. Further, since the opening 103 is provided in parallel with the vertical plane, if the opening 103 is formed large, it can be used as an emergency entrance, and the emergency entrance is formed on the slope 5B of the roof 5. Even if it is necessary to form it, it can be easily formed only by installing the dormer 100. With these, the above object is achieved.

[0019]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings. FIG. 1 shows the dormer 2 of the present embodiment.
A unit building 1 with 0 is shown. The unit building 1 includes a building frame 3 including a plurality of building units 4A and 4B arranged in combination on a foundation 2, and a substantially gable-shaped sloped roof 5 provided on the building frame 3. . The building units 4A and 4B assemble floor materials, wall materials, and the like to a rectangular parallelepiped frame (not shown) including four pillars, an upper beam connecting upper ends of these pillars, and a lower beam connecting lower ends of the pillars. 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. A floor portion is formed, and a second floor portion is formed by the second floor unit 4B.

The roof 5 has a rectangular parallelepiped skeleton similar to the building unit 4, and constitutes a third floor portion of the back of the unit of the unit building 1. A roof unit 11 is disposed on the roof unit 11 and has a roof. A ridge unit 12 that constitutes 5 ridges 5A, roof units 13 and 14 that are arranged on both sides of the hut back unit 11 and that constitute the slope 5B of the roof 5,
An eaves unit 15 which is arranged in parallel with these roof units 13 and 14 and constitutes an eaves 5C of the roof 5 is provided. The upper surface of the ridge unit 12 is formed in a mountain shape inclined on both sides of the ridge 5C.
The upper surfaces of the eaves units 15 are inclined in one direction.

These ridge unit 12 and roof unit 1
Roof 5 consisting of 3, 14 and the top of eaves unit 15
The sloped surface 5B is provided with a box-shaped dormer 20 having an opening 61 such as a window communicating with the inside of the cabin back unit 11. This dormer 20, as shown in FIG.
It is fixed to the roof unit 13 which forms the central part of the slope 5B. As shown in FIG. 3, the roof unit 13 connects a lower beam 311 made of a channel material or the like to the connection 31.
2, a vertical frame 32 that rises vertically from one end of the bottom frame 31, and a rectangular slope connecting the upper end of the vertical frame 32 and the other end of the bottom frame 31. The surface frame 33 is included.

The vertical frame 32 is formed in a portal shape including a pair of columns 321 made of a square pipe or the like, and an upper beam 322 connecting upper ends of the columns 321 via a connection 323. . The inclined surface frame 33 includes a pair of diagonal members 34 that respectively connect the connection 323 of the vertical frame 32 and the connection 312 that constitutes the other end of the bottom frame 31. These diagonal members 34 are the slopes 5B of the roof 5
The diagonal member 34 is provided along the gradient direction (see FIG. 1).
A connecting member 35 is bridged between the upper end and the lower end.

The lower end of the oblique member 34 and the bottom frame 31
As shown in FIG. 9, the attachment box 341 fixed to the lower end of the diagonal member 34 is connected to the bracket 314 fixed to the connection 312 via the base plate 313 by bolts 45. And fixing with a nut 43. The mounting box 341 is attached to the oblique member 34 so as to protrude by a predetermined dimension from the upper surface (upper flange portion 34A, see FIG. 12) of the oblique member 34 made of a channel material or the like.

As shown in FIG. 12, a mounting member 342 is fixed to the upper end of the oblique member 34, and a bracket 324 is fixed to a connection 323 of the column 321. The mounting member 342 is fixed to the bracket 324. Covered bolt 3
25 and a nut (not shown). Positioning pins 326 are provided upright on the bracket 324 so that the oblique members 34 of the inclined frame 33 can be positioned with respect to the columns 321 of the vertical frame 32.

The flanges 34A, 3 of the oblique member 34
As shown in FIG.
A U-shaped first bracket 343 for joining to the zero inclined member 24 is fixed, and a positioning pin 344 is protruded from the upper flange portion 34A. A nut 4 for joining with the inclined member 24 is provided on an inner surface of the first bracket 343.
3 is fixed.

As shown in FIG. 4, the dormer 20 attached to the roof unit 13 has a box-shaped frame 20A having right and left triangular sides, and a gable roof frame 20B provided on the frame 20A. And
The frame 20 </ b> A is composed of a gate-shaped vertical frame 21 including a pair of vertical vertical members 22 and a horizontal member 23 connecting between upper ends of the pair of vertical members 22, and a vertical member 22 of the vertical frame 21. One end is joined to the lower end and the slope 5B (FIG. 1)
(See FIG. 2).
And a pair of horizontal members 25 connecting the other ends of the inclined members 24 and the upper ends of the vertical members 22 respectively.

A horizontal member 26 is provided between the vertical members 22 of the vertical frame 21 at a portion near the lower end. A vertical panel 60 that rises in the vertical direction from the slope 5B of the roof 5 is configured to include the vertical frame 21 as described above. The above-described opening 61 is provided on almost the entire vertical surface panel 60. This opening 61
Is formed in a space surrounded by a pair of the vertical member 22, the horizontal member 23, and the horizontal member 26. Specifically, the width dimension is 750 mm or more,
It has a height of 1200mm or more. In addition, between the lower part of the pair of inclined members 24 and between the upper ends thereof, bridging members 54 and 55 are respectively bridged, and a brace 27 is diagonally formed between 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 predetermined intervals.

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.
Is made of a channel material or the like. The vertical member 22 and the horizontal member 23 are rigidly connected. That is, a pair of vertically aligned bolt holes 41A is formed on the side surface of the vertical member 22 joined to the horizontal member 23.
A plate-shaped mounting plate 41 having a vertical line is provided, and an end face of the mounting plate 41 is fixed to the longitudinal member 22 by welding. An L-shaped bracket 42 is welded and fixed between the pair of flange portions 23A and 23B of the cross member 23, and a pair of vertically arranged nuts 43 are welded and fixed to the bracket 42. The mounting plate 41 and the bracket 42 are fixed to a washer 44 by a nut 43 and a bolt 45.
Has been concluded through.

A horizontal member 25 made of a channel material or the like is fixed to the vertical member 22 by welding on a side surface orthogonal to a side surface joined to the horizontal member 23.
A, 25B, are reinforced by a reinforcing plate 71 extending from them.

As shown in FIGS. 7 and 8, the lower end of the vertical member 22 is welded to an upper flange portion 24A of an inclined member 24 made of a channel material or the like and an extension plate 51 extended from the flange portion 24A. Fixed. A reinforcing box 52 is welded and fixed between the pair of flange portions 24A and 24B, and the strength of the joint portion is secured. From the reinforcing box 52 of the inclined member 24, mounting plates 53 project from the pair of inclined members 24 in the direction in which the pair of inclined members 24 face each other, and a bridging member 54 connecting the lower portions of the inclined members 24 to these mounting plates 53 (see FIG. 4). ) Is bolt 45
And a nut 43.

As shown in FIG. 9, the lower end of the inclined member 24 is attached to a mounting box 341 provided at the lower end of the inclined member 34 of the roof unit 13 by a bolt 45 and a nut 43.
Has been fixed by. This mounting box 341
Protrudes from the diagonal member 34 by a predetermined dimension as described above, except for a joint portion between the mounting box 341 and the diagonal member 24, a gap 90 corresponding to the protruding dimension is formed between the diagonal member 24 and the diagonal member 34. Is formed.

At the upper end of the inclined member 24, FIG.
As shown in FIG. 11, a mounting plate 56 is provided so as to project in a direction in which the pair of inclined members 24 face each other. A mounting member 55 for connecting the upper ends of the inclined members 24 is attached to the mounting plate 56, and is fastened by nuts 43 and bolts 45 fixed to the mounting plate 56. An end of the horizontal member 25 is fixed to the upper flange portion 24A of the inclined member 24. The end of the horizontal member 25 is cut obliquely in accordance with the inclination angle of the inclined member 24, and the cut surface is welded to the flange portion 24A. An end plate 72 that covers the end surface 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.

The flange portions 24A, 2 of the inclined member 24
4B, a reinforcing rib 57 is provided at a position where the lower flange portion 25B of the horizontal member 25 is fixed, and the inclined member 24 is attached to the inclined member 34 of the roof unit 13 adjacent to the reinforcing rib 57. U-shaped second bracket 58 for fixing
Is fitted and fixed by welding. A nut 43 for joining to the oblique member 34 is fixed to the inner surface of the second bracket 58 by welding.

As shown in FIGS. 12 and 13, the inclined member 24 is joined to the inclined member 34 via a connecting plate 91 disposed over the second bracket 58 and the first bracket 343. . This connecting plate 9
1 is a nut 4 provided on each bracket 58, 343.
3 and bolt 45. Diagonal material 3
4 is 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. The spacer 91 has the same thickness as the size of the portion of the mounting box 341 that protrudes from the diagonal member 34, whereby the spacer 91 in the diagonal member 34 is
In the section from to the mounting box 341, the inclined material 24
Are formed at regular intervals.

Returning to FIG. 4, the roof frame 20B on the skeleton 20A includes an isosceles triangular wedge frame 81 installed on the cross member 23 of the vertical frame 21 and a top of the wedge frame 81. A pair of ridges 82 extending in parallel with the horizontal members 25 from the parts, a pair of eaves 83 installed along the horizontal members 25 on both sides of these ridges 82, and a pair of ridges 82 and the eaves 83. And rafters 84 spanned at predetermined intervals. As shown in FIGS. 14 and 15, the ridge member 82 has a curving bent bracket 85.
And are fixedly connected at a predetermined angle by bolts 45 and nuts 43. The building material 82 is made of a channel material or the like, and a reinforcing plate 8 is provided between the flange portions 82A and 82B.
6 is fixed to prevent distortion. These building materials 8
The joining between the rafter 2 and the rafter 84 and the joining between the rafter 84 and the eave material 83 are performed by welding.

As shown in FIGS. 16 and 17, the eave material 83 is made of a channel material and has flange portions 83A and 83A.
A fixing plate 88 is fixed across B. Such eaves 83 are attached to the horizontal member 25 via brackets 87 erected on the flange portion 25A of the horizontal member 25 at predetermined intervals.
It is fixed to. That is, the bracket 87 is provided with an inclined plate 87A which is inclined at a predetermined angle toward the eaves 83 side and has an L-shaped receiving member 87B fixed at the lower part, and a fixing plate for fixing the eaves 83 on the upper part of the inclined plate 87A. 8
8 is fixed, and the lower flange portion 83B of the eave material 83 is fixed to the upper surface of the receiving member 87B. These eaves 8
3 and the bracket 87 are joined by bolts 45 and nuts 43, and the frame 20A and the roof frame 20B are integrated by this joining.

According to the present embodiment, the following effects can be obtained. That is, since the vertical members 22 and the horizontal members 23 forming the vertical frame 21 of the vertical panel 60 are rigidly joined, the rigidity of the vertical panel 60 is increased,
Thereby, the rigidity of the whole frame 20A can be improved. Therefore, sufficient strength can be maintained even when the opening 61 of the vertical panel 60 is formed large. Further, since the vertical surface panel 60 is provided so as to rise vertically from the inclined 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 easily formed only by installing the dormer 20.

Further, the frame 20A connects the vertical frame 21, a pair of inclined members 24 having one ends joined to the lower ends of the vertical members 22, and connects the other ends of these inclined members 24 and the upper ends of the vertical members 22 respectively. The vertical member 22, the inclined member 24, and the horizontal member 25 are connected in a triangular shape, and the pair of horizontal members 25 are formed.
Is provided with a brace 27, so that the frame 20A
Extremely high rigidity is obtained as a whole.

The inclined member 34 of the inclined surface frame 33 of the roof unit 13 is provided along the gradient direction of the inclined surface 5B in the same manner as the inclined member 24.
Since the fixing member 4 is fixed, the inclined member 24 is fixed along the inclined member 34, and the frame 20A can be fixed to the roof unit 13 reliably.

Further, the spacer 92 in the oblique member 34
And a portion between the mounting box 341 and the inclined member 24
And a gap 90 at a predetermined interval is formed between
The load of the dormer 20 is not applied to the intermediate portion of the diagonal member 34, and even if the inclined member 24 is bent, the bending is not transmitted to the diagonal member 34 as it is. Therefore, the bending of the oblique member 34 can be prevented, and the occurrence of distortion in the roof unit 13 can be suppressed.

Since the opening 61 is provided over substantially the entire surface of the vertical panel 60, sufficient lighting and ventilation can be ensured, and a width of 750 mm or more and a height of 120 mm or more.
Since the size is 0mm or more, it can also be used as an emergency entrance.

It should be noted that the present invention is not limited to the above-described embodiment, but includes other configurations capable of achieving the object of the present invention, and also includes the following modifications.
That is, the dormer 20 of the above embodiment is composed of a frame 20 including a vertical frame 21, an inclined member 24,
A, as shown in FIG. 18, as shown in FIG. 18, the dormer 100 has a pair of side structural members 101 erected on the slope 5 </ b> B of the roof 5, and a pair of these side structural members 10.
1 and upper surface structural members 102 for connecting between the upper end portions of the side structural members 101, and these side structural surface members 101 and the upper surface structural surface members 102 are rigidly joined by welding, finger joints, or the like. An opening 103 that is parallel to the vertical plane and communicates with the inside of the roof 5 may be formed at the lower end in the gradient direction of the upper structural member 102. In addition, this dormer 1
A sash or the like that can be opened and closed is attached to the opening 103 of the 00 (not shown).

When the dormer 100 is configured as described above, the rigidity of the dormer 100 as a whole can be improved because the side structural member 101 and the upper structural member 102 are rigidly joined. 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 material 102 is formed large. Further, since the opening 103 is provided in parallel with the vertical plane, it is possible to use the opening 103 as an emergency entrance by making the opening 103 large, and the emergency entrance is used as the slope 5B of the roof 5. Even if it is necessary to form the dome 100, it can be easily formed only by installing the dormer 100.

In the above embodiment, the opening 61 has a width of 750 mm or more and a height of 1200 mm or more. The opening 61 is also used as an emergency entrance. The size may be as follows, and the specific size of the opening 61 may be set as appropriate in implementation.

Although the dormer 20 of the embodiment has the gable roof frame 20B, it may have another shape, or the roof frame 20B may not be provided.

Further, the dormer 20 of the embodiment is fixed to the roof unit 13,
May be fixed. The building is not limited to the unit-type building 1, and may be, for example, a building constructed by a panel construction method or a conventional construction method. The type is arbitrary.

[0047]

As described above, according to the present invention,
Since the vertical members and the horizontal members constituting the vertical frame of the vertical panel are rigidly joined, the rigidity of the vertical panel is increased, and thus the rigidity of the entire framework can be improved. Therefore, sufficient strength can be maintained even if the opening of the vertical panel is made large. In addition, since the vertical panel is provided standing upright from the slope, it can be used as an emergency entrance if the opening is made large, and the emergency entrance can be used on the slope of the roof. Even if it must be formed, it can be formed simply by installing a dormer.

Further, according to the present invention, since the side structural member and the upper structural member constituting the doma are rigidly joined, the rigidity of the entire doma can be improved. Therefore, sufficient strength can be maintained even if the openings provided at the lower ends in the gradient direction of the side structural surface material and the upper surface structural material are formed large. Also, 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 unless the emergency entrance is formed on the slope of the roof Even if this is not the case, it can be 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 a dormer and a roof unit of the embodiment.

FIG. 3 is a perspective view showing the roof unit of the embodiment.

FIG. 4 is a perspective view showing the dormer of the embodiment.

FIG. 5 is a plan view showing a part of the vicinity of an upper end portion of the longitudinal member of the embodiment in a partially broken manner.

FIG. 6 is an exploded perspective view showing the vicinity of the upper end of the longitudinal member of the embodiment.

FIG. 7 is a plan view showing a part of the vicinity of a lower end portion of the longitudinal member of the embodiment, partially broken away.

FIG. 8 is a perspective view showing the vicinity of the lower end of the longitudinal member of the embodiment.

FIG. 9 is a partially cutaway view showing a joint structure between the inclined member and the inclined member according to the embodiment.

FIG. 10 is an exploded perspective view showing the vicinity of the upper end of the inclined member of the embodiment.

FIG. 11 is a view showing the vicinity of the upper end of the inclined member of the embodiment.

FIG. 12 is a partially cutaway view showing a joint structure between the inclined member and the inclined member according to the embodiment.

FIG. 13 is a 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 ridge of the roof frame of the embodiment.

FIG. 15 is a perspective view showing a ridge of the roof frame of the embodiment.

FIG. 16 is a perspective view showing a joint structure between the eaves member and the horizontal member of the embodiment.

FIG. 17 is a cross-sectional view showing a joint structure between the eaves member and the horizontal member of 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 Slope 13,14 Roof unit 20,100 Doma 20A Frame 21 Vertical frame 22 Vertical member 23 Cross member 24 Incline member 25 Horizontal member 27 Brace 31 Bottom frame 32 Vertical frame 33 Incline frame 34 Diagonal material 60 Vertical panel 61,103 Opening 101 Side structure face material 102 Top structure face material

Claims (6)

[Claims] 1. A dormer structure having a box-shaped skeleton provided on a slope of a roof of a building, wherein the opening is provided to rise vertically from the slope and communicates with the interior of the roof. A vertical panel having a portal-shaped vertical frame including a pair of vertical members and a cross member connecting upper ends of the pair of members. A dormer structure characterized in that the timber and crosspiece are rigidly joined. 2. The dormer structure according to claim 1, wherein the skeleton has one end joined to a lower end of the vertical frame and the vertical member of the vertical frame, and extends along a gradient direction of the gradient surface. It is configured to include a pair of inclined members provided, and a pair of horizontal members respectively connecting the other ends of these inclined members and the upper ends of the vertical members, and a brace is erected on these horizontal members. A dormer structure characterized by the following. 3. The dormer structure according to claim 2, wherein the roof includes a roof unit having a rectangular inclined surface frame along the inclined surface, and the inclined surface frame includes the inclined surface frame. A pair of diagonal members extending along the gradient direction of the above, and the diagonal members are fixed to the diagonal members, respectively. 4. The dormer structure according to claim 3, wherein the roof unit includes a bottom frame, a vertical frame rising vertically from one end of the bottom frame, and an upper end and a bottom frame of the vertical frame. And said inclined frame connecting the ends,
A dormer structure, wherein the inclined member is joined to an end of the inclined member of the inclined frame, and a gap is formed between an intermediate portion of each inclined member and the inclined member. 5. The dormer structure according to claim 1, wherein the opening is provided over substantially the entire surface of the vertical panel. 6. A side structure comprising a pair of side structural members erected on a slope of a roof of a building, and an upper structural member connecting between upper ends of the pair of side structural members. The face material and the top structure face material are rigidly joined, and an opening provided in parallel with the vertical plane and communicated with the inside of the roof is formed at a lower end of the side structure face material and the top structure face material in a gradient direction. A dormer structure characterized in that: