JPS6329781Y2 - - Google Patents

Description

[Detailed explanation of the idea]

[Technical Field] The present invention relates to a ridge ventilation structure, and more specifically to a technique for effectively ventilating the ridge as a whole. [Background technology] In general, when ventilation is performed in a ridge, ventilation is promoted toward the center in the longitudinal direction of the ridge, and ventilation is performed well in the summer, but on the other hand, there is a problem in that a lot of heat is released in the winter. . In addition, there is a problem in that air tends to stagnate at both ends in the ridge length direction, and therefore condensation tends to occur. As described above, there is a problem in that the ventilation characteristics differ depending on the position in the ridge length direction. [Purpose of the invention] The present invention was made in view of the above problems, and its purpose is to effectively utilize a shape memory alloy that automatically deforms by sensing changes in ambient temperature. By varying the operating temperature characteristics of this shape memory alloy, it is possible to cope with differences in ventilation characteristics due to differences in position in the longitudinal direction of the ridge, thereby providing a ridge ventilation structure with good ventilation efficiency as a whole. [Disclosure of the invention] The present invention automatically opens and closes a plurality of ventilation holes 1 provided at different positions in the longitudinal direction of the ridge by operating the cover body 3 of each with a heat-sensitive displacement body 2 made of a shape memory alloy. This relates to a ridge ventilation structure which is an automatic opening/closing type in which the heat-sensitive displacement body 2 made of a shape memory alloy has different operating temperatures.
We were able to achieve the above objectives. Embodiments of the present invention will be described in detail below with reference to the drawings. A field board 5 and roofing 6 are laid over the entire roof surface on a tree 4 extending in the direction of the eaves, and a roofing material 7 is covered on top of this. A communication port 14 communicating with the attic is formed at the top of the ridge. In the ridge part, a ridge sill 8 which is long in the ridge length direction is fixed with nails 9 with bolts. A rain cutting board 10 is installed between both ridges 8, 8, the rain cutting board 10 is fixed to the ridge sill 8 with screws 11, and a communication port 14 is covered with the rain cutting board 10. In the figure, 12 is a drain plate. A ventilation hole 1 is formed in the rain cutter plate 10 to pass through the rain cutter plate 10 from the top and bottom. This ventilation port 1 is shifted in position from the communication port 14. Approximately inverted U-shaped support fittings 15 are attached to the screw nails 11 on the rain cutting board 10 at intervals in the ridge length direction.
It is attached to ridge 8. Reference numeral 16 is a ridge tile having a substantially inverted U-shaped cross section, and as shown in FIG. A connecting portion 18 is formed. A tile ventilation opening 19 is formed in the ridge tile 16, and a perforated plate 20 is fitted into the tile ventilation opening 19 to prevent birds such as sparrows from entering. And the perforated plate 2 fitted into the tile ventilation opening 9
0 to the support metal fitting 15 with bolts 21 and nuts 22, the ridge tile 16 is attached to the support metal fitting 15. The tile ventilation opening 19 and the ventilation opening 1 are shifted in position in the ridge length direction to prevent rainwater passing through the perforated plate 20 from directly entering the ventilation opening 1 of the rain cutter plate 10. Further, a drain baffle plate 23 is hung from the perforated plate 20 to prevent rainwater entering from the perforated plate 20 from being blown toward the ventilation port 1 side and scattered. As shown in Figures 5 and 6, the ventilation holes 1 at both ends of the ridge length are always open, so that air does not stagnate at both ends of the ridge length. This prevents condensation from forming on the back of the shed due to temperature changes at night due to air stagnation. Further, the ventilation opening 1 in the central part in the longitudinal direction of the ridge can be opened and closed automatically by operating a lid 3 provided on the ventilation opening 1 using a heat-sensitive displacement body 2 made of a shape memory alloy. The configuration will be explained in detail below. As shown in FIG. 7, a guide 26 is attached within the flanged cylindrical body 24 via a stay 25 using an epoxy resin adhesive. The guide 26 has a small diameter cylindrical shape, and a shaft 28 having an enlarged portion 27 at its lower end is slidably inserted from below to prevent it from slipping out upwards. A lid 3 having a larger diameter than the upper opening of the flanged cylindrical body 24 is attached to the upper end of the shaft 28 with bolts 29, and the lid 3 is attached to the peripheral flange 30 of the flanged cylindrical body 24 from above. By bringing them into contact with each other, the flanged cylindrical body 24 can be closed. In this way, the ventilation opening 1 can be closed off via a flanged cylindrical body 24 attached to the peripheral edge of the ventilation opening 1 of the rain-cutting plate 10 with an attachment means such as a nut. A coil spring 31 as a heat-sensitive displacement body 2 made of a shape memory alloy is provided between the lid body 3 and the guide 26 and wound around the shaft 28 . When the heat-sensitive displacement body 2 made of a shape memory alloy exceeds a specific (transformation) temperature such as 30° C., martensitic transformation occurs and it is greatly deformed into a specific shape, pushing up the lid 3 and opening the ventilation port 1. The hot air is discharged from the attic to the outside, allowing automatic ventilation in the summer. Furthermore, when the temperature of the heat-sensitive displacement body 2 made of a shape memory alloy decreases to below 20°C, for example, martensitic transformation occurs and the body returns to its original specific shape and is deformed, releasing the force that pushes up the lid 3 and removing the lid. 3
is lowered by its own weight and closes the ventilation opening 1 to prevent heating air from escaping outdoors in winter. Shape memory alloys are alloys of nickel, titanium, etc., and their transformation temperature can be controlled over a wide range by changing the ratio of nickel to titanium and adding small amounts of other elements. . Moreover, when it takes on a specific shape through metamorphosis, the force exerted is the expansion of a bimetal element of the same size,
This is about 200 times more powerful than the force caused by contraction. According to such a configuration, when the temperature exceeds about 30°C in the central part in the longitudinal direction of the ridge, the coil spring 31 made of a shape memory alloy expands into a specific shape of a certain length, and lifts the lid body 3. By opening the ventilation opening 1 and discharging hot air from the attic to the outside, ventilation is automatically performed in the summer season. When the temperature drops to 20 degrees Celsius during rain or winter, the coil spring 31 contracts and deforms to its original shape, lowering the lid 3 and closing the ventilation opening 1 to prevent heating air from escaping. . By the way, the temperature trend in the attic in the standard area is summer: 50℃ (daytime) to 23℃
(nighttime), winter: 23℃ (daytime) to -5℃ (nighttime). To attach the flanged cylindrical body 24 to the rain-cutting plate 10, a screw tube 32 is attached to the peripheral edge of the ventilation opening 1 of the rain-cutting plate 10.
, and the outer peripheral threaded portion 33 of the flanged cylindrical body 24 is screwed into this threaded cylinder 32 for installation. Such a mounting configuration can be modified in various designs. Then, the operating temperature of the heat-sensitive displacement body 2 related to the ventilation port 1 (indicated by in Fig. 1) at the central part in the longitudinal direction of the building is set to 20°C to 30°C as described above, and the ventilation port 1 adjacent to this is set to 20°C to 30°C. The operating temperature of the heat-sensitive displacement body 2 (indicated by . The operating temperature is set at 0 DEG to 10 DEG C., and the ventilation port 1 at the end (indicated by 1 in FIG. 1) is of an open type that is always open as described above. With these settings, as shown in Figure 8, the doors are opened in order from the lowest temperature setting, and closed in order from the highest temperature setting, and the state shown below is reached. Obtained.

[Effect of idea]

In summary, the present invention is an automatic opening/closing type that automatically opens and closes a plurality of ventilation openings that are staggered in the longitudinal direction of the ridge by actuating the lids using heat-sensitive displacement bodies made of a shape memory alloy. Since the operating temperatures of the heat-sensitive displacement bodies made of memory alloy are made to be different, for example, the operating temperature of the heat-sensitive displacement body made of shape memory alloy related to the ventilation opening in the central part in the longitudinal direction of the ridge is higher than that of other parts. By setting this, the ventilation openings in the central part, which are easy to ventilate, are closed in the winter, suppressing the release of a large amount of heat in the winter, and closing the ventilation openings in the central part, which is easy to ventilate, in the winter, and suppressing the release of a large amount of heat in the winter. By setting the operating temperature low, the ventilation openings at this location are kept open even in relatively low-temperature periods to provide ventilation, and in this way, the operating temperature of the heat-sensitive displacement body made of a formation memory alloy can be varied. This has the advantage of being able to deal with the characteristics of the ventilation openings along the length of the ridge, increasing ventilation efficiency while suppressing heat release as a whole.

[Brief explanation of drawings]

Fig. 1 is a schematic side sectional view showing the function of the present invention, Fig. 2 is a partially omitted exploded perspective view of the same as above, and Fig. 3 is a cross section of the ventilation opening in the center of the above in a direction perpendicular to the ridge direction. Figure 4 is a cross-sectional view along the ridge direction of the same as above, Figure 5 is a cross-sectional view of the ventilation opening at the end of the same above in a direction perpendicular to the ridge direction, and Figure 6 is a cross-sectional view of the same as above along the ridge direction. 7 is a cross-sectional view showing the relationship between the lid body and the flanged cylindrical body as described above, and FIG. 3 is a heat-sensitive displacement body, and 3 is a lid body.

Claims (1)

[Scope of utility model registration request] A plurality of ventilation holes, which are staggered along the length of the ridge, are automatically opened and closed by operating the lids using heat-sensitive displacement bodies made of shape memory alloy.
A ridge ventilation structure consisting of heat-sensitive displacement bodies made of shape memory alloy with different operating temperatures.