JPS637785Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a ridge ventilation system, and more particularly to a technique for automatically performing natural ventilation in a ridge using a simple device.

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. In addition, there are means to achieve ventilation by driving a ventilation door or a damper, but this requires a drive structure, making the device large-scale, and there are problems in that it cannot be opened and closed automatically.

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

That is, the present invention provides a ridge cover in which a ventilation opening 2 communicating with an attic 1 is formed in the ridge, a draining edge 3 is erected on the edge of the ventilation opening 2, and the ventilation opening 2 can be opened and closed by moving up and down. This relates to a ridge ventilation system in which the ridge cover 4 is fitted onto the draining edge 3 so as to be freely changeable in its vertical position, and the ridge cover 4 is supported by a displacement body 5 that is largely displaceable in the vertical direction due to temperature changes. With this configuration, it was possible to automatically open and close the ventilation holes with a simple device.

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

At the ridge part, rafters 7 are attached to the ridgepole 6 at appropriate intervals, a shedding board 8 is pasted on the rafter 7, and a draining board 10 is attached to the ridgepole 9 that is fixed on the shedding board 8 and presses down the shedding board 8. It is fixed with 17 nails. A ventilation opening 2 is provided between the pair of draining plates 10, 10. A draining edge 3 is provided in series on a draining plate 10 at the edge of the ventilation opening 2. A long ridge cover 4 having a substantially inverted U-shaped cross section is fitted onto a pair of opposing draining edges 3, 3 so as to be movable up and down. Lower edge 1 of ridge cover 4
1 is folded back inward, and its lower edge 11 abuts against the upper surface of the draining plate 10 to close the ventilation opening 2. 12 is a holding plate, and a push-up rod 14 is inserted into a through hole 13 of the holding plate 12 so as to be vertically movable. The upper end of the push-up bar 14 is fixed to the upper lower surface of the ridge cover 4, and a pin 15 is provided at the lower end of the push-up bar 14 to prevent it from coming off. A coil spring 16 as an example of the displacement body 5 is inserted into the upper half of the push-up rod 14, and the lower end of the coil spring 16 is supported by the retaining plate 12, and the upper end is in contact with the ridge cover 4. The displacement body 5 is one that is largely displaced due to temperature changes, and the displacement body 5 that is largely reversibly displaced due to temperature changes is, for example, 30°C.
When a specific (transformation) temperature is exceeded, martensitic transformation occurs and the material is greatly deformed into a specific shape, and
For example, there is a shape memory alloy (commonly known as nitinol) that reversibly deforms to its original shape when the temperature falls below a certain temperature such as 30° C., but other materials may also be used. Shape memory alloys are alloys of nickel, titanium, etc., which can be heated to -273°C 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 from 100℃ to 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 16 made of a shape memory alloy deforms into a specific shape of a certain length, pushes up the ridge cover 4, opens the ventilation port 2, and releases hot air. This system automatically ventilates the air from the attic to the outside in the summer. And during rainy days and winter, the temperature is 30
When the temperature drops below 0.degree. C., the coil spring 16 deforms to its original shape with a certain length, lowers the ridge cover 4 and closes the ventilation opening 7, preventing heating air from escaping.

In summary, the present invention has a draining edge erected on the edge of the ventilation opening, a ridge cover that can be moved up and down to open and close the ventilation opening, and a ridge cover that can be moved up and down to open and close the ventilation opening is fitted onto the draining edge so that its vertical position can be changed freely. Since it is supported by a displacement body that reversibly displaces greatly in the vertical direction due to changes in temperature, the displacement body can largely reversibly displace due to temperature changes in summer and winter, allowing the ridge cover to move up and down 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. Furthermore, since the ridge cover itself is moved up and down, the ridge cover required for the ridge can be effectively used, and the structure can be further simplified compared to a main stage provided with an on-off valve.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of one embodiment of the present invention, Fig. 2 is an explanatory view of the same operation, and Fig. 3 is a perspective view of the support structure of the displacement body of the above, 1 is an attic, 2 is a ventilation opening. ,
3 is a draining edge, 4 is a ridge cover, and 5 is a displacement body.

Claims (1)

[Scope of utility model registration request] A ventilation opening is formed in the ridge that communicates with the attic, and a drainage edge is set up on the edge of the ventilation opening, and the ridge cover, which can be moved up and down to open and close the ventilation opening, is exteriorized so that the vertical position can be changed freely on the drainage edge. A ridge ventilation system in which the ridge cover is supported by a displacement body that reversibly displaces vertically in response to temperature changes.