JP3159271U - Ventilation building - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ventilation building that can be installed on a single-flow roof and has high waterproof performance and easy expansion of ventilation capacity. SOLUTION: A ventilation building 5 includes a first member 10 installed on a roof material 52, a ventilation member 30 installed on the first member 10, and a second member 20 installed so as to cover the first member 10. It is composed of The first member 10 includes a flat surface 11 that is a predetermined distance X away from the roof material 52, and a hanging surface 12 that is located on the outer side of the outer wall 51. The ventilation member 30 has a large number of ventilation holes penetrating in the width direction. The second member 20 has a flat plate portion 21 parallel to the flat surface 11, a first hanging portion 22 in contact with the hanging surface 12, and extends downward toward a position on the outer side of the flat surface 11. And a second hanging portion 23 formed so as to be positioned on a virtual plane including the flat surface 11. Therefore, the ventilator building 5 can be easily installed on the single-flow roof 50, and the vent hole 28 can be expanded, that is, the ventilation capacity can be easily increased. [Selection] Figure 7

Description

  The present invention relates to a ventilation building, and more particularly, to a ventilation building attached to a single-flow roof for natural ventilation of the attic space in a house.

  Various proposals have been made for ventilation buildings that can be mounted on the roof. Among them, a ventilation building having high waterproof performance and easy expansion of ventilation capacity will be described below.

  FIG. 9 is a schematic exploded perspective view of the ventilation building disclosed in Patent Document 1, and FIG. 10 is a schematic end view of the XX line shown in FIG. 9 and shows a state of attachment to the roofing material. It is.

  With reference to these drawings, the ventilation building 70 includes a first member 71 made of a steel plate, a pair of ventilation members 81a and 81b installed on the first member 71, and a ventilation member as shown by arrows in FIG. It is mainly comprised from the 2nd member 75 which consists of a steel plate installed so that 81a, 81b may be covered. And the ventilation building 70 is installed on the roofing material 88 with the central part opened by the mountain shape.

  The first member 71 has a pair of flat surfaces 72 a and 72 b extending obliquely downward in the width direction in a parallel state with respect to the roof material 88 from an opening portion 74 formed at the center thereof. And the 1st member 71 is installed above the roof material 88 so that the opening part 74 may oppose the center part (opened part) of the roof material 88. As shown in FIG.

  The ventilation members 81a and 81b are installed on each of the flat surfaces 72a and 72b, have a rectangular cross section in the width direction, and are formed in a bar shape extending in the longitudinal direction along the opening portion 74. Specifically, they are integrated in a state where a plurality of synthetic resin sheets each having an uneven shape are laminated, and a large number of vent holes penetrating from one side wall in the width direction to the other side wall are formed. In addition, a plurality of Ω-shaped metal bands 82a and 82b are installed on the ventilation members 81a and 81b at predetermined intervals in the longitudinal direction so as to cover a part of the ventilation members 81a and 81b.

  The second member 75 has a substantially chevron shape and is parallel to each of the flat surfaces 72a and 72b. 10 is an imaginary plane that is connected to one end and extends downward toward a position on the outer side of the flat surfaces 72a and 72b in the installation state shown in FIG. It is composed of a pair of hanging portions 77a and 77b located on (a portion indicated by a two-dot chain line in FIG. 10). And the 2nd member 75 is installed so that flat plate part 76a, 76b is fixed to the upper surface of metal band 82a, 82b, and covers ventilation member 81a, 81b.

In the ventilation building 70 configured in this way, in the installed state, the lower ends of the hanging portions 77a and 77b of the second member 75 are arranged at the specific positions described above, and therefore, as shown by the one-dot chain line in FIG. Even if the blowing of wind and rain applied to the roofing material 88 occurs, there is no possibility that the blowing of wind and rain is directed directly to the ventilation members 81a and 81b.
Further, in the ventilation state, as shown by the arrows in FIG. 10, the air rising from the center portion of the roofing material 88 passes through the opening portion 74 of the first member 71 and then the ventilation members 81 a and 81 b. It passes from the inner side to the outer side through each vent hole. Then, it discharges | emits outside through the vent holes 85a and 85b which consist of the space between each lower end of the hanging parts 77a and 77b and the roof material 88. FIG. The vent holes 85a and 85b can increase the area of the vent holes 85a and 85b by increasing the predetermined distance Z between the flat surfaces 72a and 72b of the first member 71 and the roof material 88. Therefore, expansion of the ventilation capacity is facilitated.

Utility Model Registration No. 3155946

  In the conventional ventilation building as described above, there is no problem with the expansion of the waterproof performance and the ventilation capacity, but there is a problem with the installation form. That is, the conventional ventilation building has a shape that can be installed only on a so-called gable roof having a mountain shape, and cannot be installed on a single-flow roof.

  The present invention has been made to solve the above-described problems, and has an object to provide a ventilation building that can be installed on a single-flow roof that has high waterproof performance and can easily increase the ventilation capacity. .

  In order to achieve the above object, the invention according to claim 1 is a ventilation building installed in a single-flow roof having an outer wall extending vertically downward and a roof material extending obliquely downward with an opening formed at the apex side portion thereof. It is installed in a sealed state on the roof material, has an opening portion facing the opening, and obliquely downward in the width direction in a parallel state at a predetermined distance from the opening portion with respect to the roof material. A first member having a flat surface extending in the direction of the outer wall, a sealed surface on the outer side of the outer wall, and extending vertically downward from the top of the flat surface; and a flat surface below the opening of the first member A ventilation member having a plurality of ventilation holes that penetrate from one side surface to the other side surface in the width direction, having a rectangular shape in cross section in the width direction and extending in the longitudinal direction along the opening. And installed to cover the ventilation member And a second member having a flat plate portion extending obliquely downward in the width direction and a first hanging portion that is installed in contact with the outer side of the drooping surface and extends vertically downward from the apex of the flat plate portion. Provided, the lower end portion in the width direction of the flat plate portion of the second member constitutes a second hanging portion extending downward toward the position on the outer side of the flat surface, and the position of the lower end of the second hanging portion is It is located on a virtual plane including a flat surface.

  If comprised in this way, it will become a shape corresponding to a single flow roof. In addition, the space between the lower end of the second hanging portion and the roof material serves as a ventilation hole, and blowing of wind and rain applied to the roof material does not directly face the ventilation member.

  The invention according to claim 2 further comprises a cylindrical duct member, which is installed between the roofing material and the first member, and connects the opening and the opening portion. is there.

  If comprised in this way, the air of a shed space moves to the 2nd member side through a duct member.

  The invention described in claim 3 is the configuration of the invention described in claim 2, wherein the periphery of the space formed by the first member and the second member excluding the ventilation member side is above the opening portion. It further includes a partition plate that surrounds the sealed state.

  If comprised in this way, the sealing performance above an opening part will improve.

  According to a fourth aspect of the present invention, in the configuration of the first aspect of the present invention, the predetermined distance is determined according to the ventilation capacity of the ventilation member.

  If comprised in this way, the ventilation capability between the lower end of a 2nd drooping part and a roof material will interlock | cooperate with the ventilation capability of a ventilation member.

  According to a fifth aspect of the present invention, in the configuration of the first aspect of the present invention, the ventilation member is formed into the first member by a plurality of Ω-shaped metal bands arranged at predetermined intervals in the longitudinal direction. The flat plate portion of the second member is fixed to the upper surface of each metal band, and the first hanging portion is fixed to the hanging surface of the first member.

  If comprised in this way, a 2nd member will be attached in the state which protected the ventilation member.

  The invention according to claim 6 is the lower surface of the flat plate portion of the second member in the configuration of the device according to any one of claims 1 to 5, and at least a portion corresponding to the opening portion of the first member. It is further provided with an attached heat insulating material.

  If comprised in this way, dew condensation from the 2nd member is prevented.

  As described above, since the device according to claim 1 has a shape corresponding to a single-flow roof, a ventilation building can be attached to the single-flow roof. Moreover, since the space between the lower end of the second drooping portion and the roof material becomes a vent hole, the ventilation capacity can be easily increased. Further, since the blowing of wind and rain applied to the roofing material does not go directly to the ventilation member, the reliability of the waterproof performance is further improved.

  In addition to the effect of the invention described in claim 1, the invention according to claim 2 reduces the ventilation resistance and the ventilation capacity since the air in the cabin space moves to the second member side through the duct member. improves.

  In addition to the effect of the invention described in claim 2, the invention described in claim 3 improves the sealing performance above the opening, thereby improving reliability and reducing ventilation resistance.

  In addition to the effect of the device according to any one of claims 1 to 3, the device described in claim 4 has the ventilation capability between the lower end of the second hanging portion and the roof material in the ventilation capability of the ventilation member. Because it is linked, the ventilation capacity of the ventilation building can be easily adjusted.

  In addition to the effect of the device according to any one of claims 1 to 4, the device according to claim 5 has the second member attached with the ventilation member protected, so that the ventilation member is not damaged. The second member is stably attached.

  In addition to the effects of the invention described in any one of claims 1 to 5, the invention described in claim 6 prevents condensation from the second member. improves.

It is a general | schematic disassembled perspective view of the ventilation building by 1st Embodiment of this invention. It is an expanded sectional view of the II-II line shown in FIG. It is the schematic perspective view which showed the external appearance shape of the ventilation member shown in FIG. It is a general | schematic disassembled end view which showed the 1st attachment process to the roof material of the ventilation building shown in FIG. It is the schematic perspective view which showed the duct member used at the time of the 1st attachment process shown in FIG. It is a schematic decomposition | disassembly end view which showed the 2nd attachment process to the roof material of the ventilation building shown in FIG. It is the schematic end elevation which showed the attachment state to the roof material of the ventilation building shown in FIG. It is a schematic end view which shows the attachment state to the roof material of the ventilation building by 2nd Embodiment of this invention, Comprising: It corresponds to FIG. 7 of 1st Embodiment. It is a schematic exploded perspective view of the conventional ventilation building. FIG. 10 is a schematic end view of the XX line shown in FIG. 9, showing a state of attachment to the roofing material.

  FIG. 1 is a schematic exploded perspective view of a ventilation building according to a first embodiment of the present invention, and FIG. 2 is an enlarged sectional view taken along line II-II shown in FIG.

  With reference to these drawings, the ventilation building 5 includes a first member 10 formed by pressing a steel plate, a ventilation member 30 installed on the first member 10, and a ventilation member as indicated by arrows in the figure. It is mainly comprised from the 2nd member 20 formed by the press work of the steel plate installed so that 30 may be covered.

  The first member 10 has an opening portion 16a to 16d formed substantially at the center thereof, a flat surface 11 extending obliquely downward in the width direction in parallel with a roof material (not shown), and an outer wall (not shown). A hanging surface 12 that is installed on the side and extends vertically downward from the apex of the flat surface 11, a vertical portion 13 that is connected to the outer end facing the hanging surface 12 of the flat surface 11 and extends substantially vertically downward, and The flange portion 14 is connected to the lower end portion of the portion 13 and extends outward substantially parallel to the flat surface 11. A sealing material 41 is attached to the lower surface of the flat surface 11 along the outer edges of the opening portions 16a to 16d, and a longitudinally extending sealing is applied to the inner surface of the drooping surface 12. A material 42 is attached. Furthermore, a plurality of attachment holes 56 for inserting a fixing nail or the like, which will be described later, are formed in the longitudinal direction at the end of the flat surface 11 on the vertical portion 13 side.

  The ventilation member 30 is installed on the upper surface of the flat surface 11 closer to the vertical portion 13 than the opening portions 16a to 16d, has a rectangular cross section in the width direction, and extends in the longitudinal direction along the opening portions 16a to 16d. Is formed. The detailed structure of the ventilation member 30 will be described later.

  Further, a draining member 15 extending in the longitudinal direction along the opening portions 16a to 16d and having an L-shaped cross section in the width direction is disposed on the opening portions 16a to 16d side of the ventilation member 30. Further, a partition plate 17 having a U-shaped cross section in the width direction is fixed to the flat surface 11 with a rivet or the like at a position facing the draining member 15 through the opening portions 16a to 16d. Further, partition plates 18 a and 18 b formed so as to cover from the vicinity of the end in the longitudinal direction of the ventilation member 30 to the partition plate 17 are fixed to the flat surface 11 with rivets or the like. The effects of the partition plates 17, 18a, 18b will be described later.

  The ventilation member 30 is provided with a plurality of Ω-shaped metal bands 35 at predetermined intervals in the longitudinal direction so as to cover a part of the ventilation member 30. And the part which touches each flat surface 11 of the metal band 35 is being fixed to the flat surface 11 by the rivets 36a and 36b. A mounting hole 57 is formed on the upper surface of the metal band 35. The effect of the metal band 35 will be described later.

  The second member 20 has a flat plate portion 21 extending obliquely downward in the width direction in a parallel state with respect to the flat surface 11 of the first member 10 and an outer side of the hanging surface 12 of the first member 10 in the installed state. The flat surface 11 is connected to a first hanging portion 22 that extends vertically downward from the apex of the flat plate portion 21 and an outer end that faces the first drooping portion 22 of the flat plate portion 21, and is in an abutted state. And a second hanging portion 23 extending downward toward the outer side position. In the flat plate portion 21, mounting holes 58 are formed at positions corresponding to the mounting holes 57 on the upper surface of the metal band 35 in the installed state. Further, on the lower surface of the flat plate portion 21, a sealing material 43 attached to a position corresponding to the upper surface of the metal band 35, the upper surface of the partition plate 17, and the partition plates 18 a and 18 b in the installed state, and an opening portion of the first member 10. And a heat insulating material 45 attached to positions corresponding to 16a to 16d.

  Next, the detailed structure of the ventilation member 30 will be described.

  FIG. 3 is a schematic perspective view showing the external shape of the ventilation member shown in FIG.

  Referring to the drawing, the ventilation member 30 has a rectangular cross section in the width direction, and has a rod shape having substantially the same length as the length of the opening portions 16a to 16d shown in FIG. is doing. Specifically, the ventilation member 30 is connected and integrated with each other by thermal fusion in a state where a plurality of synthetic resin sheets each having an uneven cross-sectional shape are stacked. A large number of vent holes 26 penetrating from one side wall to the other side wall are formed.

  In this embodiment, the length A in the width direction of the rectangular cross-sectional shape is 18 mm, and the length B corresponding to the height is 30 mm. The vent hole 26 is set to have a rectangular opening size of approximately 1 mm × 4 mm. Such a ventilation member 30 has basically the same structure as the ridge cover material disclosed in Japanese Patent No. 2610342, like the ventilation member shown in FIG. Thus, under certain conditions, the ventilation member 30 can ventilate through the vent hole 26, and also exhibits ventilation performance and waterproof performance that prevent rainwater from entering through the vent hole 26. .

  Next, attachment to the roof material of the ventilation building 5 shown in FIG. 1 will be described.

  4 is a schematic exploded end view showing a first attachment process to the roofing material of the ventilation building shown in FIG. 1, and FIG. 5 shows a duct member used in the first attachment process shown in FIG. It is a schematic perspective view.

  First, referring to FIG. 4, a single-flow roof 50 includes an outer wall 51 that extends vertically downward, and a roof material 52 that extends obliquely downward and has an opening 53 formed at the apex side portion thereof. Specifically, the roofing material 52 is formed on a field board 65 installed on a rafter (not shown), a waterproof paper 66 laid on the upper surface below the opening 53 of the field board 65, and the waterproof paper 66. It is composed of an installed lower roof 67 and a flat roof tile 68 installed on the lower roof 67. Further, the lower flange 49 of the duct member 47 is mounted on the waterproof paper 66, and the lower collar member 67 is installed in this state. The shape of the duct member 47 will be described.

  Referring to FIG. 5, duct member 47 is formed by pressing a steel plate or the like, and is formed in a square tube shape having an upper flange 48 and a lower flange 49 and corresponding to opening 53 of roof material 52. Yes. The effect of the duct member 47 will be described later.

  Referring to FIG. 4 again, when mounting, first, the draining member 15 and the ventilation member 30 are installed in this order on the flat surface 11 of the first member 10 on the vertical portion 13 side from the opening portion 16. The metal band 35 is covered from above, and both ends of the metal band 35 are fixed to the flat surface 11 with rivets 36a and 36b. At this time, the upper end portion of the metal band 35 is fixed to the flat surface 11 by the rivet 36 b together with the draining member 15. Then, the draining member 15 and the ventilation member 30 are fixed on the flat surface 11.

  Next, the first member 10 to which the ventilation member 30 is attached is lowered from above so that the opening portion 16 faces the opening 53 above the roof material 52. Then, the sealing material 41 on the lower surface of the flat surface 11 is installed on the upper flange 48 of the duct member 47, and the flange portion 14 is installed on the roof material 52. Further, the drooping surface 12 is positioned on the outer side of the outer wall 51, and the sealing material 42 and the outer wall 51 are in contact with each other. That is, the flat surface 11 of the first member 10 is installed in a sealed state with respect to the roof material 52, and the hanging surface 12 is installed in a sealed state on the outer side of the outer wall 51.

  Thus, when the 1st member 10 which attached the ventilation member 30 on the single flow roof 50 is installed, it will be in the state shown in FIG.

  FIG. 6 is a schematic exploded end view showing a second attaching step to the roof material of the ventilation building shown in FIG.

  Referring to the drawing, the flat surface 11 of the first member 10 installed in a sealed state on the roof material 52 is in a parallel state with a predetermined distance from the roof material 52. Then, the fixing nail 37 is inserted and driven in a state where the waterproof packing 62 is attached to the lower side of the attachment hole 56 shown in FIG. Further, on the drooping surface 12, the fixing nail 38 is driven from the outer side toward the outer wall 51 so as to penetrate the sealing material 42. In this way, the first member 10 is fixed to the outer wall 51 and the roof material 52.

  Next, the second member 20 is lowered from above so as to cover the ventilation member 30 above the first member 10 and the ventilation member 30 fixed to the outer wall 51 and the roof material 52. Then, the sealing material 43 on the lower surface of the flat plate portion 21 is installed on the upper surface of the metal band 35 and the upper surface of the partition plate 17. Further, the first drooping portion 22 is installed in contact with the outer side of the drooping surface 12. Then, the state shown in FIG. 7 is obtained.

  FIG. 7 is a schematic end view showing a state in which the ventilation building shown in FIG. 1 is attached to the roofing material.

  Referring to the drawing, the second member 20 installed so as to cover the ventilation member 30 is connected to the metal band by the screw 39a through the attachment hole 58 and the attachment hole 57 formed in the metal band 35 shown in FIG. 35. Further, the first hanging portion 22 installed in contact with the outer side of the hanging surface 12 is fixed to the hanging surface 12 by screws 39b. That is, the second member 20 is attached in a state where the ventilation member 30 is protected by the metal band 35 having high rigidity. Therefore, the 2nd member 20 is stably attached, without damaging the ventilation member 30 by the impact from the outside.

  And in the 2nd member 20 installed in this way, the 2nd drooping part 23 is extended below toward the outer side of the flat surface 11, as above-mentioned. Furthermore, the position of the lower end of the second drooping portion 23 is located on a virtual plane (a portion indicated by a two-dot chain line in the drawing) including the flat surface 11. Therefore, even if the blowing of wind and rain applied to the roofing material 52 as indicated by the alternate long and short dash line in the figure occurs, there is no possibility that the blowing of wind and rain is directed directly to the ventilation member 30. Therefore, the reliability of the waterproof performance of the ventilation building 5 is further improved. In the case where wind and rain are blown from between the first member 10 and the roof material 52, the first member 10 is installed in a sealed state on the roof material 52 by the sealing material 41 as described above. Intrusion of wind and rain inward is prevented.

  In the aerated state, the air rising from the opening 53 of the roof material 52 passes through the opening portion 16 of the first member 10 through the duct member 47 as indicated by arrows. Thereafter, the air passes through the ventilation hole of the ventilation member 30 outward. And the air which passed the ventilation member 30 is discharged | emitted outside through the vent 28 which consists of the space between the lower end of the 2nd drooping part 23, and the roofing material 52. FIG.

  Thus, since the ventilation building 5 has a shape corresponding to the single-flow roof 50 having the outer wall 51 and the roof material 52, the ventilation building 5 can be attached to the single-flow roof 50 as described above.

  Further, in the installed state, the duct member 47 installed between the roof material 52 and the first member 10 is in a state in which the opening 53 of the roof material 52 and the opening portion 16 of the first member 10 are connected. Yes. Therefore, as described above, the air in the attic space moves through the duct member 47 to the second member 20 side. Therefore, since there is no possibility that the passing air is affected from the outside of the duct member 47, the ventilation resistance is reduced and the ventilation capacity is improved.

  Furthermore, in the installed state, the periphery excluding the ventilation member 30 side in the space formed by the first member 10 and the second member 20 is sealed by the partition plates 17, 18a and 18b (not shown). Surrounded by Therefore, the sealing performance above the opening portion 16 is improved. Therefore, the reliability of the ventilation building 5 is improved and the ventilation resistance in the ventilation state is reduced.

  Furthermore, in the vent hole 28, the ventilation area of the vent hole 28 can be increased by increasing the predetermined distance from the roof material 52 on the flat surface 11 of the first member 10, that is, the distance X shown in the drawing. Therefore, expansion of the ventilation capacity is facilitated.

  In the ventilation building 5 according to this embodiment, the distance X is set to 15 mm so as to correspond to the ventilation capacity of the ventilation member having the dimensions shown in FIG. That is, the ventilation area between the lower end of the second hanging part 23 and the roof material 52 is set based on the ventilation capacity of the ventilation member 30. As described above, since the adjustment of the ventilation area of the ventilation hole 28 can be adjusted by a predetermined distance from the roof material 52 on the flat surface 11, it can be easily set based on the ventilation capacity of the ventilation member 30. That is, the ventilation capacity of the ventilation building 5 can be easily adjusted.

  Further, as described above, the heat insulating material 45 is attached to the lower surface of the portion of the flat plate portion 21 of the second member 20 corresponding to the opening portion 16 of the first member 10. Therefore, condensation by the second member 20 is prevented. Therefore, since the drop of the water drop to the cabin space through the opening portion 16 of the first member 10 and the opening 53 of the roofing material 52 is prevented, the reliability of the ventilation building 5 is improved.

  FIG. 8 is a schematic end view showing the state of attachment of the ventilation building to the roof material according to the second embodiment of the present invention, and corresponds to FIG. 7 of the first embodiment.

  With reference to the drawings, the basic structure of the ventilation building 6 according to this embodiment is the same as that of the ventilation building shown in FIG. In this embodiment, the size of the ventilation member 31 and the predetermined distance between the flat surface 11 of the first member 10 and the roof material 52 are different.

  In the ventilation member 31, the length in the width direction of the rectangular cross-sectional shape is 18 mm, and the height is 40 mm. Therefore, compared with the ventilation member in 1st Embodiment, since the passage area of air increases, it becomes the ventilation member 31 with a large ventilation capability. Then, the distance between the flat surface 11 of the first member 10 and the roof material 52 so that the ventilation area between each lower end of the second hanging portion 23 and the roof material 52 is based on the ventilation capacity of the ventilation member 31. Y is set to 20 mm. That is, the ventilation building 6 has a larger ventilation capacity than the ventilation building according to the first embodiment.

  Here, the basis for setting the distance Y, which is a predetermined distance, will be described.

The dimensions of the ventilation member 30 in the ventilation building 5 shown in FIG. 7 are a width of 18 mm and a height of 30 mm, and a distance X that is a predetermined distance between the flat surface 11 and the roof material 52 is 15 mm. Here, the opening ratio of the ventilation member 30 with respect to the height of the ventilation member 30 is defined as A. A coefficient for converting the air passage area of the ventilation member 30 into a predetermined distance is α. Then, the distance X which is a predetermined distance is
X = 30 × A × α = 15 (1)
It becomes.

Next, the dimensions of the ventilation member 31 in the ventilation building 6 according to this embodiment are a width of 18 mm and a height of 40 mm. Since the shape of each ventilation hole of the ventilation member 31 and the ventilation member 30 shown in FIG. 7 is the same, the distance Y which is a predetermined distance is
Y = 40 × A × α (2)
It becomes. Here, when the equation (1) is transformed,
A × α = 15/30 (3)
When substituting equation (3) into equation (2),
Y = 40 × (15/30) = 20 (4)
It becomes. In this way, the distance Y is set.

  In addition, by setting the predetermined distance based on the ventilation capacity of the ventilation member 31 in this way, the predetermined distance can be set for the ventilation members having various dimensions. Therefore, the ventilation capacity of the ventilation building 6 can be set freely.

  In each of the above embodiments, the structure of a single-flow roof is specified. However, the structure may have an outer wall extending vertically downward and a roof material extending obliquely downward with an opening formed at the apex side thereof. For example, other structures can be similarly applied.

  In each of the above embodiments, the first member is formed in a specific shape, but the flat surface is installed in a sealed state in a parallel state with a predetermined distance from the roofing material, and the hanging surface is the outer wall. As long as the first member is installed in a sealed state on the outer side, the first member may have another shape.

  Furthermore, in each said embodiment, although the dimension and shape of the ventilation member are specified, as long as the same ventilation function and waterproof function are exhibited, another dimension and shape may be sufficient. In this case, it is preferable that the same effect is exhibited under the same conditions as the wind and rain test described in the specification of Japanese Patent No. 2610342.

  Furthermore, in each of the above-described embodiments, the second hanging portion of the second member is formed in a specific shape, but each of the second hanging portions is directed toward the position on the outer side of the flat surface of the first member. As long as it extends downward and the position of each lower end is located on a virtual plane including the flat surface of the first member, it may be formed in another shape.

  Furthermore, in each of the above-described embodiments, a duct member having a specific shape is provided. However, as long as the duct member is formed in a cylindrical shape that connects the opening of the roofing material and the opening portion of the first member, Also good. Alternatively, the duct member may be omitted.

  Further, in each of the above embodiments, a partition plate having a specific shape is installed in the space formed by the first member and the second member, but the periphery of the space excluding the ventilation member side is sealed. As long as the shape surrounds the state, the partition plate may have another shape. Alternatively, the partition plate may be omitted.

  Further, in each of the above embodiments, the predetermined distance between the flat surface of the first member and the roofing material is determined according to the ventilation capacity of the specific ventilation member, but the overall structure including the ventilation member is also included. You may decide based on. Needless to say, a predetermined distance may be set according to the ventilation capacity of other ventilation members. On the other hand, the predetermined distance may not be determined according to the ventilation capacity of the ventilation member.

  Further, in each of the embodiments described above, the ventilation member is fixed to the first member by the metal band, but may be fixed to the first member by another member, adhesion, or the like.

  Further, in each of the above embodiments, the second member is fixed to the upper surface of each metal band and the bottom surface of the first member. However, as long as the second member can maintain the installation state, the other members It may be fixed to the first member or the like by a method.

  Furthermore, in each said embodiment, although the heat insulating material is attached to the lower surface of the flat plate part of a 2nd member, the heat insulating material may be attached to the whole lower surface of a flat plate part. Or there may be no heat insulating material.

5, 6 ... Ventilation ridge 10 ... 1st member 11 ... Flat surface 12 ... Drooping surface 16 ... Opening part 17, 18 ... Partition plate 20 ... 2nd member 21 ... Flat plate part 22 ... 1st drooping part 23 ... 2nd drooping part DESCRIPTION OF SYMBOLS 26 ... Ventilation hole 28 ... Ventilation hole 30, 31 ... Ventilation member 35 ... Metal band 45 ... Insulation material 47 ... Duct member 50 ... Single-flow roof 51 ... Outer wall 52 ... Roof material 53 ... Opening The corresponding part is shown.

Claims (6)

A ventilation building installed in a single-flow roof having an outer wall extending vertically downward and a roof material extending obliquely downward with an opening formed at the apex side portion thereof,
It is installed in a sealed state on the roof material, and has an opening portion facing the opening, and obliquely downward in the width direction in a parallel state separated from the opening portion by a predetermined distance from the roof material. A first member having a flat surface extending to the outer wall and a hanging surface that is installed in a sealed state on the outer side of the outer wall and extends vertically downward from the apex of the flat surface;
The first member is installed on the flat surface below the opening portion, and the cross section in the width direction has a rectangular shape and a bar shape extending in the longitudinal direction along the opening portion, and the width direction A ventilation member having a plurality of ventilation holes penetrating from one side surface to the other side surface;
A flat plate portion that is installed to cover the ventilation member, extends obliquely downward in the width direction, and is installed in contact with the outer side of the drooping surface, and extends vertically downward from the apex of the flat plate portion. A second member having one hanging part,
An end on the lower side in the width direction of the flat plate portion of the second member constitutes a second hanging portion that extends downward toward a position on the outer side of the flat surface, and a lower end of the second hanging portion. Is a ventilation building located on a virtual plane including the flat surface.   The ventilation building according to claim 1, further comprising a cylindrical duct member that is installed between the roof material and the first member and connects the opening and the opening portion.   3. A partition plate that surrounds the periphery of the space excluding the ventilation member side in a sealed state in the space formed by the first member and the second member above the opening portion. The listed ventilation building.   The ventilation building according to any one of claims 1 to 3, wherein the predetermined distance is determined according to a ventilation capacity of the ventilation member. The ventilation member is fixed to the first member by a plurality of Ω-shaped metal bands arranged at predetermined intervals in the longitudinal direction,
The flat plate portion of the second member is fixed to the upper surface of each of the metal bands, and the first hanging portion is fixed to the hanging surface of the first member. The ventilation building described in Crab.   6. The heat treatment according to claim 1, further comprising a heat insulating material attached to a lower surface of the flat plate portion of the second member and corresponding to at least the opening portion of the first member. Ventilation building.

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