JPH0240181Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field] The present invention relates to a ventilation system for a corner portion between the lower roof and the outer wall of a house.

[Background technology] Conventionally, ventilation has been devised at the eaves and roof ridges, but in the corner area between the lower roof and the outer wall, such as the projecting roof of the second floor, this area is used for ventilation. has not been done much. Therefore, the inventors of the present invention considered attaching a drainage board with a ventilation hole to the corner between the lower roof and the outer wall in order to ventilate this area. However, in this case, since the number of ventilation holes provided in the draining board is fixed, there is a problem in that it is not possible to change the ventilation capacity according to the needs of the site, such as the size of the house.

[Purpose of the invention] The present invention was made in view of the above points, and the purpose is to provide a lower roof ventilation system that can provide ventilation capacity according to the needs of the site, such as the size of the house. That is.

[Disclosure of the invention] Accordingly, the lower roof ventilation system according to the present invention includes an outer drainage plate 2 attached to the outside of the inner drainage plate 1 so as to cover the inner drainage plate 1 to form a ventilation unit 3; An inner ventilation opening 4 is provided to open vertically, and an outer ventilation opening 5 is provided in the outer drainage plate 2, and a space 6 is provided between the inner drainage plate 1 and the outer drainage plate 2, where both the ventilation openings 4 and 5 communicate with each other. A cover body 15 is fitted over the inner ventilation opening 4, and the cover body 15 is supported by a coil material 19 made of a shape memory alloy that expands and deforms to push up the cover body 15 due to the action of high temperatures. , a plurality of ventilation units 3 are installed along the corner portions of the lower roof 7 and the outer wall 8, and the inner ventilation openings 4 are communicated with the inside of the lower roof 7, and the cross-section is formed to have approximately the same shape as the cross-sectional shape of the outer draining plate 2. Attach the connecting drain plate 9 that has been installed to the above-mentioned corner between adjacent ventilation units 3, and connect the ventilation unit 3 and the connecting drain plate with the ends of the outer drain plate 2 and the connecting drain plate 9 overlapping each other. The ventilation unit 3 and the connecting drain plate 9 are used to achieve the above object, and the present invention will be described below as an example. This will be explained in detail.

The ventilation unit 3 is formed of an inner drain plate 1 and an outer drain plate 2, as shown in FIG. It is formed by bending a plate, and an inner ventilation opening 4 is provided in the center of the horizontal piece 11. A cylindrical portion 14 is provided around the inner ventilation port 4 so as to rise up.
4 is covered with an umbrella-shaped lid 15. A slide piece 16 is projected downward from the center lower surface of the lid body 15, and the slide piece 16 can be slid up and down into a receiving tube 18 provided at the tip of a support piece 17 extending from the inner edge of the inner ventilation opening 4. A coil material 19 made of a bidirectional shape memory alloy is attached between the lid body 15 and the receiving tube 18 on the outer periphery of the slide piece 16. The outer drain plate 2 is formed by extending a rising piece 21 and a water section 22 from a central piece 20 provided with an outer ventilation opening 5. The rising piece 21 and the water cutter 22 of the plate 2 are superimposed on each other, and the inner water cutter plate 1 and the outer water cutter plate 2 are integrated by fitting with the fitting piece 23 or other means such as welding or riveting, thereby forming the ventilation unit 3. It is intended to cause the formation of
A space 6 is formed between the inner draining plate 1 and the outer draining plate 2, in which the inner ventilation opening 4 and the outer ventilation opening 5 communicate with each other. A side door 24 is installed between the inner drain plate 1 and the outer drain plate 2 on both sides of the ventilation unit 3, so that the space 6 is closed off on both sides. The ventilation unit 3 is set, for example, to have a height of about 20 cm and a width of about 30 cm. On the other hand, the connecting drain plate 9 is formed by bending a metal plate to have a cross section that is almost the same as the cross-sectional shape of the outer drain plate 2, without providing a ventilation hole or the like, as shown in FIG. ,
It is formed into a long piece of about 180cm and can be cut at any position.

FIG. 1 shows the ventilation unit 3 installed at the corner of the lower roof 7 and the outer wall 8. The lower roof 7 has a shedding board 26 mounted on a tree 25. It is formed by attaching a flat tile 27 made of asbestos or the like on top, and the upper end of the roof board 26 is cut out, and the area between the trees 25 is made into an opening 28 so that the interior of the lower roof 7 and the outdoors communicate with each other. be. Further, for the outer wall 8, a base plate 30 is attached to the outside of the pillar 29, and an outer wall material 31 is attached to the outside of the base plate 30.
It is formed by stretching. The ventilation unit 3 is arranged so as to cover the opening 28, and the lower part is fixed to the cap 32 fixed on the flat tile 27, the upper part is fixed to the base plate 30, and the ventilation unit 3 is installed so as to be covered with the outer wall material 31. is carried out. This ventilation unit 3 is installed in a desired number at predetermined intervals on the lower roof 7 and the outer wall 8.
However, a connection drain plate 9 is installed between the ventilation units 3. The connection drain plate 9 can be attached in the same manner as the ventilation unit 3, but the both ends of the connection drain plate 9 are attached to the outer surface of the side edges of the outer drain plate 2 of the ventilation unit 3 as shown in FIG. By stacking them in this manner, adjacent ventilation units 3 are connected by a connection drain plate 9.

The air in the lower roof 7 passes through the opening 28 and flows into the space 6 from the inner ventilation opening 4 of the inner drainage plate 1 of the ventilation unit 3, and is further discharged outdoors from the outer ventilation opening 5 of the outer drainage plate 2. Ru. In addition, the desired ventilation capacity will differ depending on the size of the house, but in the case of a large house, 3 ventilation units are required.
Increase the number of vents to increase the number of vents,
Increase ventilation capacity. On the other hand, in the case of a small house, the number of ventilation units 3 is reduced, the number of ventilation openings is reduced, and the ventilation capacity is reduced. The number of ventilation units 3 can be arbitrarily adjusted by connecting the connecting drainage members 9 to make them longer or cutting them to make them shorter. Here, in a wood that requires ventilation such as in the summer, the shape memory alloy coil material 19 is deformed to extend due to the action of high temperatures, pushing up the lid body 15, and the inner ventilation port 4 is wide open to provide ventilation. is done efficiently, but
When ventilation is not required, such as in winter, the shape memory alloy coil material 19 is not deformed because the temperature is low, the lid 15 remains down, the inner ventilation opening 4 is closed, and ventilation is not performed. In addition, the space 6 of the ventilation unit 3 is
Rainwater that has entered the interior is blocked by the inner drain plate 1 and further blocked by the side door 24, and is then removed from the lower roof 7.
It does not extend inside.

The outer ventilation port 5 of the outer drain plate 2 of the ventilation unit 3 may be formed in a slit shape as shown in FIG. 4, or may be formed in a slit shape as shown in FIG. good.

[Effects of the invention] As described above, in the present invention, the ventilation unit is formed by attaching the outer drainage plate to the outside of the inner drainage plate, covering the inner drainage plate, and the inner ventilation opening is connected to the outer drainage plate. Each board is provided with an outside ventilation hole, and multiple ventilation units are installed along the corners of the lower roof and the outer wall to communicate the inside ventilation hole with the inside of the lower roof, creating a cross-sectional shape that is approximately the same as the cross-sectional shape of the outside draining board. Since the connecting drainage plates formed in The ventilation capacity can be adjusted to suit the size of the house. In addition, the ventilation unit is unitized, which reduces the number of construction steps. Moreover, the inner ventilation opening is fitted with a lid, and the lid is supported by a shape-memory alloy coil material that expands and deforms when exposed to high temperatures, pushing the lid upwards, so ventilation is required during the summer. At times like this, the coil material stretches and pushes up the lid, opening the inner ventilation port wide and allowing for efficient ventilation.On the other hand, when ventilation is not required, such as in the winter, the coil material does not deform and the lid opens downwards. The inner ventilation opening can be blocked and ventilation can be prevented while the lid remains closed, and in this way, rational ventilation can be performed depending on the external environment. Furthermore, the inner ventilation opening is provided in the inner drainage plate with an opening in the vertical direction, and the lid is fitted onto the top side of the conventional inner opening, so that the inner ventilation opening that opens in the vertical direction improves air circulation efficiency. In addition to being able to improve ventilation efficiency, the inner ventilation openings are designed to open vertically in this way, making it easier for rainwater to blow in and infiltrate. It is covered with a lid to prevent rainwater from entering.

[Brief explanation of the drawing]

Figure 1 is a sectional view of an embodiment of the present invention, Figure 2 is a reduced front view of the same as above, Figures 3 a and b are sectional views and front views of the same ventilation unit, and Figures 4 a and b are the same as above. Figures 5a and b are sectional views and front views of still another embodiment of the same, and Figures 6a and b are sectional views of the connecting drain plate of the same. It is a front view of a part. 1 is an inner drain plate, 2 is an outer drain plate, 3 is a ventilation unit, 4 is an inner ventilation hole, 5 is an outer ventilation hole, 6 is a space, 7 is a lower roof, 8 is an outer wall, 9 is a connection drain material, 15 , 16 is a coil material.

Claims (1)

[Scope of utility model registration request] An outer drain plate is attached to the outside of the inner drain plate to cover the inner drain plate to form a ventilation unit, an inner ventilation opening is provided in the inner drain plate to open vertically, and an outer ventilation opening is provided in the outer drain plate, A space is formed between the inner drain plate and the outer drain plate in which both the ventilation holes communicate with each other, and a lid body is fitted on the upper surface side of the inner ventilation hole, and the lid body expands due to the action of high temperature and pushes the lid body. It is supported by a shape memory alloy coil material that deforms in the upward direction, and multiple ventilation units are installed along the corners of the lower roof and the outer wall to connect the inner ventilation openings to the inside of the lower roof. A connecting drain plate formed with a cross section of approximately the same shape is attached to the above-mentioned corner between adjacent ventilation units, and ventilation is carried out with the ends of the outer drain plate and the connecting drain plate overlapping each other. A lower roof ventilation system consisting of a unit and a connecting drain plate.