JP2023146208A - ventilation structure - Google Patents

Abstract

To provide a ventilation structure having excellent ventilation and waterproofing functions.SOLUTION: A ventilation structure 4b mainly includes a frame 12 including a second vertical portion 16 in which a through hole 18 is formed, and a ventilation member 13 that performs a ventilation function from indoors to outdoors and a waterproof function inside the frame 12. The ventilation member 13 includes a first baffle plate 24 that extends vertically so as to cross the ventilation path from indoors to outdoors, and a second baffle plate 26 that extends vertically at a predetermined distance outward from the first baffle plate 24. Further, the first baffle plate 24 has a first ventilation hole 25 formed therein through which air can pass, and the second baffle plate 26 is similarly has a second ventilation hole 27 formed therein. With this configuration, the second vertical portion 16, the first baffle plate 24, and the second baffle plate 26 prevent rainwater from entering, while the through hole 18 of the second vertical portion 16, the first ventilation hole 25, and the second ventilation hole 27 ensure a ventilation path from indoors to outdoors.SELECTED DRAWING: Figure 2

Description

There is an application for exception to loss of novelty.

The present invention relates to a ventilation structure, and in particular to a ventilation structure installed at the top of a fence, balcony handrail, parapet, etc., on a cap, verge, or eaves.

Conventionally, the following technologies have been proposed as ventilation structures used to prevent corrosion, cracks, etc. by ventilating caps installed at the upper ends of frames (standing frames) of fences, balcony handrails, parapets, etc. ing.

Patent Document 1 discloses a Kasagi lower ventilation structure in which a ventilation member is installed above an outer wall base material and an outer wall material. The ventilation member is a laminate made of synthetic resin and has a corrugated cardboard structure, and has a large number of through holes of a predetermined size formed therein. This allows air to pass from the inside to the outside, while providing a waterproof function to prevent rainwater from penetrating into the structure through the ventilation members, and preventing humid air from accumulating under the Kasagi. Ventilation can be provided.

The Kasagi structure disclosed in Patent Document 2 uses a ventilation member having the same configuration as the ventilation member described in Patent Document 1, and further includes an apron portion extending vertically outward from the ventilation member. We are prepared. By hanging and fixing the Kasagi cover on the lower end of the apron, it can be fastened without driving screws into the upper end of the frame, and it prevents water from entering the frame from where the screws are driven. .

Japanese Patent Application Publication No. 2013-108314 Japanese Patent Application Publication No. 2018-127883

In conventional ventilation structures such as those disclosed in Patent Document 1 and Patent Document 2, the ventilation member has a specific structure, but there is still room for improvement in its ventilation function and waterproof function.

In addition, in conventional ventilation structures, caulking material was used to fill the area between the upper end of the exterior wall material and the ventilation member, but it was time-consuming to install it in areas that were difficult to see under the Kasagi. Ta.

This invention was made to solve the above-mentioned problems, and an object thereof is to provide a ventilation structure having excellent ventilation and waterproof functions.

In order to achieve the above object, the invention according to claim 1 provides a ventilation structure installed above an exterior wall material and extending in the longitudinal direction, the ventilation structure having a first vertical part extending in the vertical direction in an installed state; a frame body comprising a first horizontal part extending outdoors from the upper end of the vertical part; a second vertical part extending vertically downward from a part of the first horizontal part and having a through hole formed therein; a ventilation member having a ventilation function from the indoors to the outdoors and a waterproof function, the ventilation member extending in a vertical direction so as to cross the ventilation path from the indoors to the outdoors, and a first baffle plate in which a first ventilation hole is formed. and a second baffle plate extending vertically at a predetermined distance outward from the first baffle plate and having a second ventilation hole formed therein.

With this configuration, the second vertical portion, the first baffle plate, and the second baffle plate prevent rainwater from entering, while the through hole, the first ventilation hole, and the second ventilation hole provide a ventilation route from indoors to outdoors. Secured.

The invention according to claim 2 is the configuration of the invention according to claim 1, in which the ventilation member is configured by combining three U-shaped members, and the U-shaped member has a vertical cross-sectional shape in the transverse direction. It has a substantially U-shape including a surface portion, an upper surface portion, and a lower surface portion, and the vertical surface portion has a plurality of cut-and-raised holes formed at predetermined intervals in the longitudinal direction, rising on the open side in the cross-sectional shape in the transverse direction. The U-shaped member has a first U-shaped member with the release side facing outdoors, and the first U-shaped member and the release side face each other, and the upper surface parts and lower surface parts of each are stacked and combined. The second U-shaped member was placed with the open side facing outdoors, the vertical surfaces of the second U-shaped member were in contact with each other, and the positions of the cut and raised holes were aligned with each other. and a third U-shaped member.

With this configuration, air from indoors is discharged outdoors through the cut and raised holes.

According to a third aspect of the present invention, in the configuration of the first or second aspect of the present invention, the through hole is provided in a lower half region of the second vertical portion in the vertical direction.

With this configuration, waterproof function is enhanced while ensuring sufficient ventilation function.

The invention according to claim 4 is the structure of the invention according to any one of claims 1 to 3, in which the frame further includes a second horizontal part extending indoors from the lower end of the second vertical part, The member is fixed to the second horizontal portion.

With this configuration, the upper and lower portions of the first baffle plate and the second baffle plate are sandwiched between the first horizontal portion and the second horizontal portion.

The invention set forth in claim 5 is the structure of the invention set forth in claim 4, which further includes a drain hole provided at a connection point between the second vertical part and the second horizontal part to drain infiltrated rainwater to the outside. It is.

With this configuration, even if a small amount of rainwater enters, it will be discharged to the outside.

The invention according to claim 6 is the configuration of the invention according to any one of claims 1 to 5, which further comprises: an awning part extending in the vertical direction with a predetermined distance outward from the second vertical part; The device further includes a connecting portion connecting the horizontal portion and the apron portion.

With this configuration, a turbulent flow of air flowing into the space between the apron part and the second vertical part occurs. Also, a cap cover can be hung on the lower end of the apron to fix it.

The invention set forth in claim 7 is the configuration of the invention set forth in any one of claims 1 to 6, further comprising an elastically deformable cushioning material installed at a location between the ventilation member and the outer wall material. It is something.

With this configuration, the space between the ventilation member and the outer wall material can be filled with the cushioning material.

The invention according to claim 8 is the structure of the invention according to any one of claims 1 to 7, in which the outer wall material is attached via a rim attached to the outer surface of the outer wall base material, and 1. The vertical part is installed so as to be inserted into the gap between the outer wall base material and the rim.

With this configuration, positioning of the frame becomes easy.

As explained above, the invention according to claim 1 prevents the intrusion of rainwater by the second vertical part, the first baffle plate, and the second baffle plate, while preventing the intrusion of rainwater by the through hole, the first vent hole, and the second vent hole. Since a ventilation route from indoors to outdoors is secured, excellent ventilation and waterproofing functions are exhibited.

In addition to the effect of the invention described in claim 1, the invention described in claim 2 improves the stability of the ventilation path because air from indoors is discharged outdoors through the cut and raised holes.

In addition to the effects of the invention as set forth in claim 1 or 2, the invention set forth in claim 3 improves the waterproof function while ensuring sufficient ventilation function, so that the structure can be reduced in size.

The invention according to claim 4 has the advantage that, in addition to the effects of the invention according to any one of claims 1 to 3, the upper and lower sides of the first baffle plate and the second baffle plate are in the first horizontal part and the second horizontal part. Since it is sandwiched, the stability of the installation is improved.

In addition to the effect of the invention described in claim 4, the invention set forth in claim 5 improves the waterproof function because even if a small amount of rainwater enters, it is discharged to the outside.

In addition to the effects of the invention described in any one of claims 1 to 5, the invention as claimed in claim 6 provides the advantage that a turbulent flow of air flowing into the space between the apron part and the second vertical part occurs. This will further prevent rainwater from entering. Furthermore, since the cap cover can be hung and fixed on the lower end of the apron, it can be attached without driving screws or the like into the upper end of the frame.

In addition to the effects of the invention according to any one of claims 1 to 6, the invention according to claim 7 can fill the space between the ventilation member and the external wall material with a cushioning material. In addition, the installation process can be reduced and replacement can be facilitated.

In addition to the effects of the invention described in any one of claims 1 to 7, the invention set forth in claim 8 facilitates positioning of the frame, making the installation work more efficient.

FIG. 2 is a sectional view showing how the ventilation structure according to the first embodiment of the present invention is installed in the lower part of a house. FIG. 2 is a sectional view showing a ventilation structure included in the X portion shown in FIG. 1. FIG. 3 is an enlarged perspective view of the Y portion shown in FIG. 2. FIG. 4 is a schematic diagram showing an assembly process of the ventilation member shown in FIG. 3. FIG. FIG. 7 is a sectional view showing how a ventilation structure according to a second embodiment of the present invention is installed in the lower part of a house. FIG. 7 is a cross-sectional view showing how a ventilation structure according to a third embodiment of the present invention is installed in the lower part of a house. 7 is a sectional view showing a ventilation structure included in the Z section shown in FIG. 6. FIG. It is a sectional view showing how the ventilation structure according to the fourth embodiment of the present invention fits in the lower part of a house.

FIG. 1 is a sectional view showing how the ventilation structure according to the first embodiment of the present invention is installed in the lower part of a house.

The Kasagi structure 1, Kasagi 2, and ventilation structure 4 described below are elongated along the longitudinal direction of a frame 40 such as a fence, balcony handrail, parapet, etc., and FIG. 1 shows a cross-section in the transverse direction. This shows how well it fits. Further, the center direction of the figure is the indoor side, and both left and right sides are the outdoor side.

Referring to the same figure, a pair of outer wall base materials 41a and 41b are arranged at the outdoor end in the transverse direction of the frame 40, and a pair of furring edges 42a and 42b are provided on the outer surface thereof. A pair of exterior wall materials 45a and 45b made of ceramic siding are provided on the outside (outdoor side). The furring edges 42a, 42b are provided at predetermined intervals in the longitudinal direction (not shown), and the intervals serve as ventilation passages 48a, 48b. Further, the space inside the frame 40 is communicated with the ventilation passages 48a, 48b (not shown) so that the warm, humid air inside the frame 40 rises through the ventilation passages 48a, 48b. The Kasagi structure 1 is installed at the upper end of the frame 40.

The Kasagi structure 1 mainly consists of a Kasagi 2 installed at the upper end of the frame 40 and a pair of ventilation structures 4a and 4b installed above the pair of exterior wall materials 45a and 45b and below the Kasagi 2. It is configured.

The caps 2 are made of metal, and are connected to the outdoor side from above the upper end of the frame 40 and the ventilation structures 4a, 4b via cap mounting brackets 3 provided at predetermined intervals in the longitudinal direction at the upper end of the frame 40. It is installed so as to cover the entire area, and prevents rainwater from directly entering the frame 40 inside the cap 2 from above.

Each of the pair of ventilation structures 4a and 4b crosses a ventilation path from the inside to the outside (from the indoor side to the outdoor side) shown by the dashed-dotted arrow 38 in the figure above the exterior wall materials 45a and 45b. It is set up to do so.

FIG. 2 is a sectional view showing the ventilation structure included in the X section shown in FIG. 1, and FIG. 3 is an enlarged perspective view of the Y section shown in FIG.

First, referring to FIG. 2, the ventilation structure 4b is mainly composed of a frame body 12 made of a steel plate, and a ventilation member 13 disposed within the frame body 12 and having a ventilation function from indoors to outdoors and a waterproof function. ing.

The frame 12 includes a first vertical part 14 that extends vertically in the installed state, and a first horizontal part 15 that extends substantially horizontally from the upper end of the first vertical part 14 toward the outdoors (right direction in FIG. 2). It mainly consists of a second vertical section 16 extending vertically downward from the outdoor end of the first horizontal section 15 . The frame body 12 further includes a second horizontal portion 17 extending from the lower end of the second vertical portion 16 in parallel with the first horizontal portion 15 and leaving a predetermined distance in the direction of the first vertical portion 14 (indoor direction). We are prepared. In addition, a plurality of through holes 18 are formed in the second vertical portion 16 at predetermined intervals in the longitudinal direction, and these through holes 18 are arranged so as to fit in the lower half region A of the second vertical portion 16 in the vertical direction. It is set in. The effects of this configuration will be described later.

Further, the connection angle between the first vertical portion 14 and the first horizontal portion 15, shown as θ ₁ in FIG. 2, is set to 87°. Here, since the first vertical part 14 is installed in the vertical direction, each of the first horizontal part 15 and the second horizontal part 17 is inclined downward by 3 degrees toward the outdoor direction. In addition, a plurality of drain holes 19 are formed at predetermined intervals in the longitudinal direction at the connection point between the second vertical portion 16 and the second horizontal portion 17 for draining rainwater that has entered the drain to the outside.

Further, the inner (leftward direction in FIG. 2) end 20 of the second horizontal portion 17 is bent upward.

Next, the ventilation member 13 includes a first baffle plate 24 that extends vertically so as to cross the ventilation route from indoors to outdoors, and a first baffle plate 24 that extends vertically at a predetermined distance outward (in the outdoor direction) from the first baffle plate 24. The second baffle plate 26 extends. Further, the first baffle plate 24 is formed with a first vent hole 25 through which air can pass, and the second baffle plate 26 is similarly formed with a second vent hole 27.

With this configuration, the second vertical portion 16, the first baffle plate 24, and the second baffle plate 26 prevent rainwater from entering, while the through hole 18, the first ventilation hole 25, and the second ventilation hole 27 prevent rainwater from entering. A ventilation path from indoors to outdoors, indicated by arrow 38 in FIG. 1, is secured. Therefore, while the air inside the frame 40 is ventilated, there is a so-called three-stage barrier against the infiltration of water such as rainwater from the outside, and the ventilation structure 4b has excellent ventilation and waterproof functions. Demonstrated.

At this time, as described above, the through hole 18 is provided in the vertical lower half region A of the second vertical portion 16, so that even if rainwater tries to enter along with wind blowing from the outside, Once the air is blown into the space 30 above the outside of the second vertical section 16 and the force is reduced, it comes into contact with the through hole 18 of the second vertical section 16 . Therefore, even if the through hole 18 is not provided in the entire second vertical portion 16, sufficient ventilation function can be ensured and the waterproof function can be improved. The number can be reduced to three, and the structure can be made smaller.

In addition, as mentioned above, by providing the drain hole 19 at the connection point between the second vertical part 16 and the second horizontal part 17, even if a small amount of rainwater enters, it will be drained outward, making it easier to use. The waterproof function has been improved. Furthermore, as described above, the first horizontal part 15 and the second horizontal part 17 are inclined downward by 3 degrees toward the outdoor direction, so that the rainwater that has entered is guided to the drain hole 19. Furthermore, the waterproof function has been improved.

Further, the ventilation member 13 described above is fixed to the second horizontal portion 17 of the frame body 12 using rivets 21a and 21b. With this configuration, the upper and lower sides of the first baffle plate 24 and the second baffle plate 26 are sandwiched between the first horizontal part 15 and the second horizontal part 17, so that the stability of the installation is improved.

Referring back to FIG. 1, an elastically deformable EPDM cushioning material 22 is provided between the second horizontal portion 17 of the ventilation structure 4b and the outer wall material 45b. By installing the cushioning material 22 attached to the ventilation structure 4b in advance above the exterior wall material 45b, the space between the ventilation member 13 and the exterior wall material 45b can be filled with the cushioning material 22. There is no need to caulk in areas that are difficult to see, and the installation process can be reduced. In addition, replacement becomes easy.

Note that the ventilation structure 4a on the other side of the ventilation structure 4b described above has a similar configuration. Therefore, excellent ventilation and waterproof functions are exhibited on both sides in the outdoor direction.

Next, a method of configuring the ventilation member 13 in such ventilation structures 4a, 4b will be explained.

FIG. 4 is a schematic diagram showing an assembly process of the ventilation member shown in FIG. 3.

Referring to the figure, the ventilation member 13 is constructed by combining a first U-shaped member 51, a second U-shaped member 61 and a third U-shaped member 71 having the same shape. Ru.

The first U-shaped member 51 is formed by bending a long metal plate into a substantially U-shape in cross-section in the transverse direction shown in the figure to form a vertical surface portion 52, an upper surface portion 53, and a lower surface portion 54. It consists of: In addition, a plurality of cut-and-raised holes 55 are formed in the vertical surface portion 52 at predetermined intervals in the longitudinal direction, and are raised on the open side 56 in the cross-sectional shape in the transverse direction.

When assembling the ventilation member 13, first, referring to FIG. 4 (1), the open side 56 of the first U-shaped member 51 and the open side 66 of the second U-shaped member 61 are opposed The upper surface portions 53, 63 and the lower surface portions 54, 64 are made to approach each other as shown by arrows 60a and 60b, and are overlapped with each other as shown in (2) of FIG. combine to form.

Next, the third U-shaped member 71 has its release side 76 facing outdoors (the same direction as the release side 56 of the first U-shaped member 51), and as shown by the arrow 70, the third U-shaped member 71 The vertical surface portion 72 of the character-shaped member 71 and the vertical surface portion 62 of the second U-shaped member 61 are in contact with each other, and the positions (heights) of the cut-and-raised hole 75 and the cut-and-raised hole 65 are aligned. By arranging the ventilation member 13, the assembly of the ventilation member 13 is completed.

In the ventilation member 13 assembled in this manner, the vertical surface portion 52 of the first U-shaped member 51 functions as the first baffle plate 24 and the cut-and-raised hole 55 functions as the first ventilation hole 25. Further, the vertical surface portion 62 of the second U-shaped member 61 and the third U-shaped member are spaced outward from the first baffle plate 24 and held by the upper surface portions 53 and 63 and the lower surface portions 54 and 64. The vertical surface portion 72 of 71 functions as the second baffle plate 26, and the cut and raised holes 65, 75 function as the second ventilation hole 27.

With this configuration, air from indoors is exhausted to the outdoors through the cut and raised holes 55, 65, and 75, improving the stability of the ventilation path. Further, since the first baffle plate 24 and the second baffle plate 26 are arranged at a certain distance apart, the ventilation path from indoors to outdoors is less likely to be clogged, and the waterproof function is improved.

Referring back to FIGS. 1 and 2, the ventilation member 13 is inside the frame 12 formed by bending a metal plate (below the first horizontal part 15 and inward from the second vertical part 16). The ventilation structure 4b is configured by arranging the ventilation structure 4b at

In addition, when installing the ventilation structure 4b, first widen the space between the upper end of the outer wall base material 41b and the upper end of the rim 42b to form a gap, and fill the gap with the upper end of the frame 12 of the ventilation structure 4b. 1 Install by inserting the vertical part 14.

By doing so, positioning of the frame body 12 becomes easy, so that the installation work becomes efficient.

In the ventilation structure 4b installed above the exterior wall material 45b in this way, as described above, while preventing the intrusion of rainwater, the risk of clogging is also reduced, and the ventilation route from indoors to outdoors is prevented. As a result, excellent ventilation and waterproofing functions can be achieved.

Next, FIG. 5 is a sectional view showing how a ventilation structure according to a second embodiment of the present invention is installed in the lower part of a house.

The ventilation structure 5 according to the second embodiment of the present invention has basically the same configuration as the ventilation structure 4 according to the first embodiment described above, so the differences will be mainly explained below. .

Referring to the figure, below each of the ventilation structures 5a and 5b, a single hat joiner 32a and 32b is provided without the cushioning material 22 (see FIG. 1). The single hat joiners 32a and 32b extend in the longitudinal direction and have hat portions 33a and 33b having a U-shaped cross section. Then, the single hat joiners 32a, 32b are nailed to the body edges 42a, 42b, respectively, so that the lower surfaces of the hat parts 33a, 33b are in contact with the upper ends of the exterior wall materials 45a, 45b, and the upper surfaces are in contact with the lower parts of the ventilation structures 5a, 5b. etc. is fixed.

The gaps between the lower parts of the ventilation structures 5a, 5b and the upper ends of the outer wall materials 45a, 45b are filled using caulking materials 34a, 34b for the hat parts 33a, 33b of the single hat joiners 32a, 32b installed in this way. be done.

In this way, it is also possible to use the caulking materials 34a, 34b for the ventilation structures 5a, 5b without using the cushioning material 22.

Next, FIG. 6 is a cross-sectional view showing how the ventilation structure according to the third embodiment of the present invention is installed in the lower part of a house, and FIG. FIG. 2 is a sectional view showing a ventilation structure.

Note that the ventilation structure 6 according to the third embodiment of the present invention has basically the same configuration as the ventilation structure 4 according to the first embodiment described above, so the differences will be mainly explained below. .

First, referring to FIG. 6, ventilation structures 6a and 6b are provided above outer wall materials 45a and 45b via cushioning materials 22a and 22b. The top plate 81 of the cap 78 is inclined downward from one end 79 on the outdoor side of the house to the other end 80 on the indoor side. Therefore, when rain falls on the cap 78, the rainwater is guided to flow toward the other end 80 of the cap 78 (the indoor side of the house), thereby preventing traces of rainwater from remaining on the outdoor side of the house. I can do it.

Further, between the cap 78 and the frame 40, there is provided an elastically deformable buffer 82 whose upper surface follows the slope of the top plate 81 and whose cross section is trapezoidal. Thereby, even when a load is applied to the top plate portion 81, the shape of the cap 78 is stabilized.

Further, the lower ends of one end 79 and the other end 80 of the cap 78 are bent inward and upward to form folded parts 83a and 83b, respectively.

Next, referring also to FIG. 7, in addition to the structure of the ventilation structure 4b in the first embodiment described above, the ventilation structure 6b is provided vertically at a predetermined distance outward from the second vertical part 86. The front hanging part 89 extends in the direction, and the connecting part 87 connects the first horizontal part 85 and the front hanging part 89. As shown in FIG. 6, the folded part 83b of the other end 80 of the cap 78 is hooked to the lower end 90 of the apron part 89, and the same holds true for the folded part 83a of the one end 79. Note that the other end portion 80 is fixed to the front hanging portion 89 with screws or the like. In this way, the Kasagi 78 can be attached to the top plate part 81 or the upper end of the frame 40 without driving any mounting tools such as screws, so there is no need to form a hole for attachment, and it is possible to Rainwater can be prevented from penetrating into the frame 40 through the holes.

Further, the lower end 90 of the front hanging portion 89 is located lower than the through hole 88 of the second vertical portion 86 in the vertical direction. Therefore, it is possible to prevent lateral rain and wind from blowing directly into the ventilation structure 6b.

By arranging the front hanging part 89 outward from the second vertical part 86 via the connecting part 87 with a predetermined interval, the front hanging part 89 and The through hole 88 of the second vertical portion 86 is formed in the lower half region of the second vertical portion 86 in the vertical direction, since turbulence of air flowing into the space between the second vertical portion 86 and the second vertical portion 86 occurs. It has a synergistic effect and further prevents rainwater from entering.

Next, FIG. 8 is a sectional view showing how a ventilation structure according to a fourth embodiment of the present invention is installed in the lower part of a house.

Referring to the figure, ventilation structures 7a and 7b have the same structure as ventilation structures 6a and 6b according to the third embodiment described above. Further, like the ventilation structures 5a and 5b according to the second embodiment described above, they are installed above the outer wall materials 45a and 45b via single-hat joiners 32a and 32b.

In this way, it is also possible to caulk the ventilation structures 7a, 7b provided with the apron portions 99a, 99b using the single hat joiners 32a, 32b.

In each of the above embodiments, the cap and the frame of the ventilation structure are made of steel plates, but they may be made of other materials. Examples include those made of aluminum or synthetic resin. Moreover, it is also possible to integrally mold it by extrusion molding.

Further, in each of the above embodiments, the ventilation member has a specific configuration, but includes a first baffle plate in which a first ventilation hole is formed, and a second baffle plate provided outwardly at a predetermined distance from the first baffle plate. Any other configuration may be used as long as it includes a second baffle plate in which two ventilation holes are formed. For example, there is a structure in which two longitudinally extending steel plates each having a ventilation hole are fixed to the inside of the frame so as to be separated by a predetermined distance.

Further, in each of the above embodiments, the through hole is provided in the lower half region of the second vertical portion in the vertical direction, but it may be provided in another location of the second vertical portion.

Furthermore, in each of the above embodiments, the frame body was provided with the second horizontal part, but the structure is not provided with the second horizontal part and the first baffle plate and the second baffle plate are fixed to the upper part of the frame body. It may be.

Furthermore, in each of the embodiments described above, a drain hole is formed at the connection location between the second vertical portion and the second horizontal portion, but the drain hole may not be formed. Also, drain holes may be provided at other locations.

Furthermore, in the first and third embodiments described above, the cushioning material made of a specific material is provided, but the cushioning material is elastically deformable and can fill the area between the ventilation member and the outer wall material. It may be made of other materials if possible.

Furthermore, in each of the above embodiments, the first vertical part of the frame is installed by being inserted into the gap between the outer wall base material and the rim, but if the position can be fixed, it can be installed by other methods. You can leave it there.

Furthermore, in each of the above embodiments, the top plate has a specific cross-sectional shape in the transverse direction, but rainwater, etc. that falls from above is guided downward, and water accumulates at the top of the top plate. Any other shape may be used as long as it can prevent this from happening.

Furthermore, in each of the embodiments described above, the outer surface of the apron part of the ventilation member and the inner surface of the first side wall part of the cap cover may be liquid-tightly joined with adhesive, double-sided tape, or the like. With this configuration, even if rainwater tries to blow into the Kasagi structure from horizontally or diagonally downward, even if it enters from the folded part, the water will not reach the outer surface of the awning part. It is possible to prevent water from entering upward into the space under the Kasagi due to surface tension or the like between the end of the Kasagi and the inner surface thereof.

Furthermore, in each of the embodiments described above, the end of the cap and the awning part of the ventilation structure are attached with screws, but other attachment means may be used.

Furthermore, in each of the above embodiments, the first horizontal part, the second horizontal part, and the communication part are inclined downward at a specific angle toward the outside, but water that has entered inward from the through hole is Any other angle may be used as long as it is inclined downward so that water can be drained to the outside through a drainage hole. Alternatively, it may be provided horizontally without being inclined downward.

Furthermore, in each of the above embodiments, the structure of the lower part of the cap is specific, but other structures may be used as long as the part is located between the exterior wall material and the cap installed above it. It's okay.

Furthermore, in each of the above embodiments, the frame of the ventilation member has a specific structure, but it may have another structure.

Furthermore, in each of the above embodiments, the lower end of the apron part is located below the through hole of the second vertical part, but it does not have to be located so below.

Further, in each of the above embodiments, the inner side of the horizontal part where the ventilation member is not installed is bent upward at a specific angle, but it is bent at another angle. Also good. Further, the portion may be omitted.

Further, in each of the above embodiments, the ventilation member is arranged so as to be surrounded inside the frame, but the position of the ventilation member may be fixed, and the positional relationship with the frame is not limited.

Furthermore, in each of the above embodiments, the ventilation structure is used at a specific lower portion of the cap, but the ventilation structure can also be used at other locations such as the verge, the gable side, and the eaves side.

Further, in the third and fourth embodiments described above, a buffer body is provided inside the cap, but the buffer body may have other configurations, such as a metal support. Further, it is not necessary to provide a support structure such as a buffer.

Further, in the second and fourth embodiments described above, a single hat joiner with a specific configuration is provided, but the single hat joiner may not be used.

Furthermore, in each of the above embodiments, a pair of ventilation structures are provided in the Kasagi structure, but for example, for a frame in which an external wall material or a ventilation path exists only on one side, a ventilation member is provided. It may be present only on one side.

Further, in each of the embodiments described above, the space inside the body is communicated with the ventilation passage in the trunk rim by a specific means, but moisture and air may be discharged into the ventilation passage by other means. Further, the space inside the frame and the ventilation path in the trunk rim may not be in communication with each other.

1... Kasagi structure 4, 5, 6, 7... Ventilation structure 12... Frame body 13... Ventilation member 14... First vertical part 15, 85... First horizontal part 16, 86... Second vertical part 17... Second Horizontal portion 18, 88... Through hole 19... Drain hole 22... Cushioning material 24... First baffle plate 25... First ventilation hole 26... Second baffle plate 27... Second ventilation hole 41... Outer wall base material 42... Furring rim 45 ...Outer wall material 51...First U-shaped member 52, 62, 72...Vertical surface portion 53, 63...Top surface portion 54, 64...Bottom surface portion 55, 65, 75...Cut and raised hole 56, 66, 76...Release side 61 ...Second U-shaped member 71...Third U-shaped member 87...Communication portion 89, 99...Apron portion Note that the same reference numerals in each figure indicate the same or equivalent parts.

Claims (8)

A ventilation structure installed above the exterior wall material and extending in the longitudinal direction,
A first vertical part that extends in the vertical direction in an installed state, a first horizontal part that extends in an outdoor direction from an upper end of the first vertical part, and a through hole that extends vertically downward from a part of the first horizontal part. a frame body comprising a second vertical portion;
A ventilation member having a ventilation function from indoors to outdoors and a waterproof function inside the frame,
The ventilation member includes a first baffle plate that extends vertically across a ventilation route from indoors to outdoors and has a first ventilation hole formed therein, and a first baffle plate that is vertically spaced apart from the first baffle plate by a predetermined distance outwardly from the first baffle plate. a second baffle plate extending in the direction and having a second ventilation hole formed therein. The ventilation member is configured by combining three U-shaped members,
The U-shaped member has a substantially U-shaped cross-sectional shape in the transverse direction including a vertical surface portion, an upper surface portion, and a lower surface portion,
The vertical surface portion has a plurality of cut-and-raised holes formed at predetermined intervals in the longitudinal direction, rising on the open side in the cross-sectional shape in the transverse direction,
The three U-shaped members are
a first U-shaped member with the release side facing outdoors;
a second U-shaped member in which the first U-shaped member and the release side face each other, and each of the upper surface portions and the lower surface portions are stacked and combined;
A third U-shaped member is arranged such that the open side faces outdoors, and the second U-shaped member and each of the vertical surface portions are in contact with each other, and the positions of the cut and raised holes are aligned with each other. 2. The ventilation structure of claim 1, comprising: The ventilation structure according to claim 1 or 2, wherein the through hole is provided in a vertical lower half region of the second vertical portion. The frame further includes a second horizontal part extending in the indoor direction from the lower end of the second vertical part,
The ventilation structure according to any one of claims 1 to 3, wherein the ventilation member is fixed to the second horizontal part. 5. The ventilation structure according to claim 4, further comprising a drainage hole provided at a connection point between the second vertical part and the second horizontal part to discharge infiltrated rainwater to the outside. Claims 1 to 3, further comprising: an awning part extending in the vertical direction at a predetermined distance outward from the second vertical part; and a connecting part connecting the first horizontal part and the apron part. 5. The ventilation structure according to any one of 5. The ventilation structure according to any one of claims 1 to 6, further comprising an elastically deformable cushioning material installed at a location between the ventilation member and the outer wall material. The exterior wall material is attached via a rim attached to the outer surface of the exterior wall base material,
The ventilation structure according to any one of claims 1 to 7, wherein the first vertical portion of the frame is installed so as to be inserted into a gap between the outer wall base material and the rim.

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