JPS6241149Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a roof ventilation system, and more specifically, a substantially circular opening 2 in a part of the roofing material 1 that communicates with the attic.
A receiving flange 4 is provided on the outer periphery of the lower edge of the cylindrical receiving body 3, and a presser flange 6 is provided on the outer periphery of the lower edge of the cylindrical holding body 5. The presser body 5 is screwed and fitted, and the roofing material 1 is held between the receiving flange 4 and the presser flange 6,
A lid body 8 is provided to close the ventilation opening 7 on the upper edge of the presser body 5, and the lid body 8 is supported by a changeable body 9 that is largely reversibly displaced due to temperature changes.
This relates to a roof ventilation system provided with 0.

Conventionally, when ventilating the attic, the method of always opening the vent has a problem in that cold air enters in the winter and lowers the indoor temperature. There are also ways to ventilate by driving ventilation doors and dampers.
The problem was that a drive structure was required, making the device large-scale, and that it could not be opened and closed automatically.

The present invention was devised in view of these problems, and its purpose is to provide a roof ventilation system that can automatically open and close ventilation holes using a simple device.

Embodiments of the present invention will be described in detail below with reference to the drawings.

Reference numeral 1 denotes a roof material, which is installed on a roof base material (not shown). Approximately circular openings 2 are formed in the roofing material 1 at appropriate locations to allow ventilation between the attic and the outdoors. Reference numeral 3 denotes a receiving body, which is formed into a cylindrical shape, has a receiving flange 4 formed on the outer periphery of the lower edge, and has a male thread 11 formed on the outer periphery of the receiving body 3. 5 is a presser foot;
It is formed in a cylindrical shape, and has a presser flange 6 formed on the outer periphery of the lower edge, and a female thread 12 formed on the inner periphery of the presser body 5. The presser flange 6 is inclined outward toward the bottom. Then, the holding body 5 is screwed into the receiving body 3 inserted into the opening 2 from below, and the roofing material 1 is held between the receiving flange 4 and the holding flange 6, and the receiving body 3 and the holding body are attached to the roofing material 1. 5 is attached. Reference numeral 10 denotes a rain shield shaped like a canopy, which is held by the presser body 5 via a support 13 connected to the presser body 5. A lid 8 is provided on the ventilation hole 7 at the upper edge of the presser foot 5.
are arranged so that the ventilation opening 7 can be opened and closed freely. A coil spring 15 as an example of the displacement body 9 is inserted into the rod-shaped body 14 extending from the lid body 8 , and the lower end of the coil spring 15 is supported by a supporter 13 . The displacement body 9 displaces greatly due to temperature changes, and as a displacement body 9 that displaces greatly and reversibly due to temperature changes, martensitic transformation occurs when a specific (transformation) temperature such as 30°C is exceeded. There is a shape memory alloy (commonly known as nitinol) that deforms greatly and reversibly deforms to its original shape when the temperature drops below a certain temperature, such as the above-mentioned 30° C., but other materials may also be used. Shape memory alloys are alloys of nickel, titanium, etc., and can be heated from -273℃ by changing the ratio of nickel to titanium and adding small amounts of other elements.
The transformation temperature can be controlled over a wide range of about 100℃. Moreover, when it transforms into a specific shape, the force it exerts is about 200 times greater than the force caused by expansion and contraction of a bimetal element of the same size.

According to this configuration, when the temperature exceeds about 30°C, the coil spring 15 made of a shape memory alloy deforms into a specific shape of a certain length, pushes up the lid body 8, opens the ventilation port 7, and releases hot air. This system automatically ventilates the air from the attic to the outside in the summer. Then, when the temperature drops below 30°C, the coil spring 15 deforms to its original shape with a certain length.
The lid 8 is lowered to close the ventilation opening 7 to prevent heating air from escaping during the winter.

FIG. 2 shows another embodiment similar to the above, in which an inclined surface 16 is formed on the lower surface of the lid 8 to facilitate good ventilation.

FIG. 3 shows still another embodiment similar to the above, in which the lid 8 is held by a coil spring 15 supported on the rain shield 10 side.

Fig. 4 shows still another embodiment of the same as above, which was implemented in the ridge section, and the roofing material 1 is a horizontal member provided along the entire length of the ridge extending between the ridge beams 17 and 17. . In this case, the roof ventilation devices A are scattered along the length of the ridge, and windbreak plates 18 serving as decorations are provided along the entire length of the ridge. The windbreak plate 18 may be a roofing material as shown in FIG. Further, as shown in FIG. 8, the roof ventilation device A may be formed at the top of the hip ridge.

In summary, the present invention is provided with a lid that closes the ventilation port at the upper edge of the presser body, and the lid is supported by a displacement body that is largely reversibly displaced due to temperature changes.
The displacement body can be greatly reversibly displaced due to temperature changes in summer and winter, allowing the lid to be moved to open and close the ventilation opening.
Although it is a simple device, it has the advantage of being able to automatically open and close ventilation holes. In addition, a receiving flange is provided on the outer periphery of the lower edge of the cylindrical receiver, a presser flange is provided on the outer periphery of the lower edge of the cylindrical presser body,
The retaining body is screwed into the receiving body inserted into the opening and the roofing material is held between the receiving flange and the retaining flange, making it easy and secure to drain water around the receiving body and presser body used to create ventilation holes. It has the advantage of being able to be carried out.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of one embodiment of the present invention, Fig. 2 is a partially omitted sectional view of another embodiment of the same, and Fig. 3 is a partially omitted sectional view of still another embodiment of the same. ,
4 is a schematic sectional view of still another embodiment of the same as above, FIG. 5 is a side view of the embodiment of FIG. 4, FIG. 6 is an overall side view of a house using the embodiment of FIG. 4, and FIG. Fig. 7 is a perspective view of the upper part of still another embodiment of the same as above, and Fig. 8 is an overall perspective view of a house using still another embodiment of the same as above, 1 is a roofing material, 2 is an opening, and 3 is a Receptacle, 4 is a receiving flange, 5 is a presser body, 6 is a presser flange, 7 is a ventilation hole, 8 is a lid body, 9 is a displacement body, 1
0 is for rain protection.

Claims (1)

[Scope of utility model registration request] A substantially circular opening communicating with the attic is formed in a part of the roofing material, a receiving flange is provided on the outer periphery of the lower edge of the cylindrical receiver, and a presser flange is provided on the outer periphery of the lower edge of the cylindrical presser body. A presser body is screwed into the receiver inserted into the opening, the roofing material is held between the receiver flange and the presser flange, and a lid body is provided to close the ventilation opening on the upper edge of the presser body. A roof ventilation system that is supported by a displacement body that reversibly displaces due to temperature changes, and a rain guard is provided in the upper part of the lid.