JPH0988200A - Eaves edge ventilator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve external appearance by making an intake air hole invisible in external appearance, increase an intake air quantity by enlarging the air supply area by the intake air hole, and improve external appearance by reducing downward projection of an intake air box. SOLUTION: A ventilating clearance 4 communicated with an attic space 5 is arranged between a lower part of an end plate 2 suspended from the eaves edge tip of a roof 1 and an end part on the eaves edge side of an eaves ceiling board 3 constructed under the edge of the eaves. An eaves edge decorative cover 6 is laid over the end part on the eaves edge side of the eaves ceiling board 3 from a front face of the end plate 2. The inside of an intake air box 7 arranged under the eaves edge decorative cover 6 and the ventilating clearance 4 are communicated with each other. A cross-sectional Z-shaped bending part 10 is arranged on the bottom surface side of the intake air box 7, and slit-like intake air holes 9 are arranged in an upper piece part 10a above this cross-sectional Z-shaped bending part 10 and an intermediate inclined piece part 10b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an eaves ventilation device for ventilating an attic from the eaves to the attic.

[0002]

2. Description of the Related Art A conventional eaves ventilation device of this type is disclosed in Japanese Utility Model Laid-Open No. 56-89811.
This is a nose plate 2 that hangs down from the eaves of the roof 1 as shown in FIG.
The ventilation gap 4 provided between the lower part of the roof and the eaves ceiling of the eaves ceiling plate 3 installed under the eaves is connected to the back of the hut 5, and between the front of the nose plate 2 and the eaves tip of the eaves ceiling plate 3. The eaves-edge makeup cover 6 is attached so as to crawl. The inside of the intake box 7 provided at the lower part of the eaves decorative cover 6 communicates with the above-mentioned ventilation gap 4, and the rear side, which is the ridge side of the intake box 7, is provided with a concave curved portion 8 which is concave toward the front side. A slit-shaped intake hole 9 is formed in the concave curved portion 8. The attic 5 is ventilated from the intake hole 9 through the intake box 7 and the ventilation gap 4 so that the attic 5 can be ventilated.

[0003]

In the above-mentioned conventional example, the intake hole 9 is formed in the recessed curved portion 8 on the back side of the intake box 7, so that the intake hole 9 is hard to be seen from below the eaves. Although the appearance is good, there is a problem that the intake area is small and the intake amount cannot be increased because the intake holes 9 are arranged in a line in the concavely curved portion 8 on the back side and the holes are not smoothly ventilated. In order to increase the size of the intake hole 9, the height h protruding below the intake box 7 must be increased, which causes a problem that the appearance is deteriorated.

The present invention has been made in view of the above-mentioned points, and improves the appearance by making the intake holes invisible so that the intake area is increased by the intake holes to increase the intake amount. Another object is to improve the appearance by reducing the downward projection of the intake box.

[0005]

In order to achieve the above object, the eaves ventilation device of the present invention comprises a lower part of a nose plate 2 hanging down from the eave tip of a roof 1 and an eaves side end of a eaves ceiling plate 3 installed under the eaves. An evacuation gap 4 communicating with the back of the hut 5 is provided between the front and rear parts, and the eaves makeup cover 6 is attached so that it extends from the front of the nose plate 2 to the end of the eaves ceiling plate 3 on the eaves side. The inside of the intake box 7 provided at the lower part of the
A bent portion 10 having a Z-shaped cross section is provided on the bottom surface side of the intake box 7, and a slit-shaped intake hole 9 is formed in an upper upper portion 10a of the bent portion 10 having a Z-shaped cross section and an inclined portion 10b in the middle.
Is provided. Therefore, the air under the eaves can be ventilated from the intake hole 9 to the inside of the intake box 7 and to the attic 5 through the ventilation gap 4 to ventilate the attic 5.
At this time, the intake hole 9 is provided in the upper piece 10a and the inclined piece 10b of the bent portion 10 having a Z-shaped cross section, so that the intake hole 9 is difficult to see from below the eaves, and the appearance is good. Further, since the intake hole 9 is formed in each of the upper piece 10a and the oblique piece 10b of the bent portion 10 having a Z-shaped cross section, the intake area of the intake hole 9 can be increased to increase the intake amount and smooth the ventilation. Can be done. Further, since the intake area is increased by providing the intake holes 9 in the upper piece portion 10a and the inclined piece portion 10b of the bent portion 10, in order to increase the intake air amount, the protruding height of the intake box 7 below is increased. It does not need to be raised and the appearance does not deteriorate.

Further, a ventilation gap 4 communicating with the attic 5 is provided between the lower part of the nose plate 2 hanging from the tip of the eaves of the roof 1 and the end of the eaves ceiling plate 3 erected under the eaves. A front eaves cover 6 is attached so as to extend from the front surface of the plate 2 to the end of the eaves ceiling plate 3 on the eaves side, and the inside of the intake box 7 provided at the lower part of the front eaves cover 6 is communicated with the ventilation gap 4. A plurality of bent portions 11 having a substantially inverted V-shaped cross section are provided on the bottom side of the intake box 7 in a row in the eaves ridge direction, and a slit-shaped intake hole is formed in a vertical piece 11a of the bent portions 11 having an inverted V-shaped cross section. It is also preferable that it is provided with 9. Therefore, the air under the eaves can be ventilated from the intake hole 9 to the inside of the intake box 7 and to the attic 5 through the ventilation gap 4 to ventilate the attic 5. At this time, the intake hole 9 is provided from below the eaves because the vertical hole 11a of the bent portion 11 having a substantially inverted V-shaped cross section is provided.
Is hard to see and has a good appearance. Further, since the intake holes 9 are provided in each of the vertical pieces 11a of the plurality of bent portions 11 having a substantially inverted V-shaped cross section, the intake area of the intake holes 9 can be increased and the intake amount can be increased to smoothly perform ventilation. be able to. Further, since the intake area is increased by providing the intake holes 9 in the vertical pieces 11a of the plurality of bent portions 11, it is necessary to increase the downward projection height of the intake box 7 in order to increase the intake amount. Without the appearance does not deteriorate.

It is also preferable that the thermal foam 12 that foams and expands by heating to close the intake path in the intake box 7 is internally provided in the intake box 7. In this case, even if the attic 5 can be ventilated by ventilation, it is possible to prevent the thermal foam 12 from foaming and expanding when a fire occurs to block the intake path and spread the fire.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS First, the embodiment shown in FIGS. 1 and 2 will be described. The roof 1 is formed by laying a roof substrate 14 on a rafter 13, and covering a roof substrate 14 with a roof tile 15. A nose board 2 is attached to the eaves of the roof 1 so as to hang from a roof substrate 14, and an eave ceiling board 3 is provided at the eave ceiling portion below the attic 5, which hangs from a rafter 13. The eaves ceiling plate 3 is suspended and supported by a hanging tree 16.
The eaves ceiling plate 3 is preferably an inorganic plate or a metal plate. Nose plate 2
A ventilation gap 4 is formed in the purlin direction between the lower part of the and the end of the eaves ceiling plate 3 on the eaves side. A drainer plate 15 is attached to an end of the roof substrate 14 on the eaves side, and a hanging piece 15a of the drainer plate 15 is hung downward. The eaves tip decorative cover 6 is formed of sheet metal or the like in a shape as shown in FIG. 2A, and is attached so as to extend from the front surface of the nose plate 2 to the lower surface of the end portion of the eaves ceiling plate 3 on the eaves side. ing. When the eaves tip cover 6 is attached to the nose plate 2, it is attached to the front and bottom surfaces of the nose plate 2 with the noncombustible material 21 interposed therebetween. The front piece 6a of the eaves tip cover 6 is along the front surface of the nose plate 2, and the tip of the inclined piece 6b extending obliquely downward from the tip of the front piece 6a is engaged with the tip of the hanging piece 15a of the draining board 15. There is. Between the front piece 6a and the bottom surface portion 6c of the eaves decorative cover 6, there is a bent portion 6
d is provided, and the bottom face portion 6c is provided with an intake box 7 whose inside is an intake path. An opening 17 elongated in the purlin direction is provided on the upper surface of the intake box 7, and the inside of the intake box 7 and the attic 5 are communicated with each other with the opening 17 and the ventilation gap 4 corresponding to each other. A bent portion 10 having a Z-shaped cross section is provided on the bottom surface of the intake box 7 so as to extend in the purlin direction, and a horizontal upper piece portion 10a and an inclined piece portion 10b above the bent portion 10 having the Z-shaped cross section are provided. A slit-shaped intake hole 9 is formed. The intake holes 9 are arranged in a row at a predetermined pitch in the purlin direction. Further, on the bottom surface in the intake box 7, a thermal foam 12 that expands by heating and closes the intake path in the intake box 7 is formed.
The air intake box 7 is installed so that
A projecting piece 18 is hung so as to face the thermal foam 12 from the upper surface thereof with a space. The thermal foam 12 is, for example, a graphite-based noncombustible foam material, and is a clay-like expandable graphite filler solidified with a urethane-based binder. This starts foaming at about 150 ° C and about 2 at about 200 ° C.
It expands to double the volume and foams about 30 times at about 300 ° C. An eaves gutter suspender 19 is attached to the front side of the front piece 6a of the eaves-edge makeup cover 6, and an eaves gutter 20 is suspended from and held by the eaves gutter suspender 19.

The eaves of the roof 1 is constructed as described above, and the air under the eaves is sucked into the intake box 7 through the intake holes 9 and is sucked from the intake box 7 into the attic 5 through the opening 17 and the ventilation gap 4. The outdoor air is ventilated in the attic 5,
The air in the attic 5 is exhausted from the ridge and the like, and the attic 5 is ventilated. At this time, the intake hole 9 has a bent portion 10 having a Z-shaped cross section.
Since the intake holes 9 are provided in both the upper piece portion 10a and the inclined piece portion 10b, the intake area can be increased and the intake amount can be increased. In addition, the intake holes 9 are provided in both the upper piece 10a and the inclined piece 10b of the bent portion 10 having a Z-shaped cross section so that the height h protruding downward of the intake box 7 is increased in order to increase the intake amount. Without increasing the intake volume, the appearance does not deteriorate. Further, the upper piece portion 10a having a Z-shaped cross section and the oblique piece portion 1
Since the intake hole 9 is provided in 0b, the intake hole 9 cannot be seen from below the eaves and the appearance does not deteriorate. Further, when a fire occurs, it is possible to prevent the thermal foam 12 from foaming due to heating and expanding to block the intake path in the intake box 7 and spread the fire.

Next, the embodiment shown in FIGS. 3 and 4 will be described. This example is also basically the same as the example shown in FIG. 1 and FIG. 2, and only the structure of the intake box 7 portion of the eaves cover 6 is different. Therefore, the overall description will be omitted and only the structure of the intake box 7 will be described. A plurality of bent portions 11 having an inverted V-shaped cross section are provided in parallel on the bottom surface of the intake box 7. In the case of this example, the two bent portions 11 are formed so as to extend in the longitudinal direction. The bent portion 11 having an inverted L-shaped cross section includes a vertical piece portion 11a and a diagonal piece portion 11b.
A slit-shaped intake hole 9 is formed in 1a. A large number of the intake holes 9 are formed at a predetermined pitch in the purlin direction.
Further, a thermal foam 12 and a projecting piece 18 are provided in the intake box 7.

The air under the eaves is sucked into the air intake box 7 through the air intake holes 9, and is sucked from the air intake box 7 into the attic 5 through the opening 17 and the ventilation gap 4.
The outdoor air is ventilated, the air in the attic 5 is exhausted from the ridge, and the attic 5 is ventilated. At this time, the intake hole 9
Since each of the plurality of bent portions 11 is provided, the intake area can be increased and the intake amount can be increased. Further, the intake box 7 is provided in order to increase the intake amount by providing the intake holes 9 in the plurality of bent portions 11.
The amount of intake air can be increased without increasing the height h protruding downward, and the appearance does not deteriorate. Furthermore, since the intake hole 9 is provided in the vertical piece 11a of the bent portion 11 having an inverted V-shaped cross section, the intake hole 9 is not visible from below the eaves and the appearance is not deteriorated. Further, when a fire occurs, it is possible to prevent the thermal foam 12 from foaming due to heating and expanding to block the intake path in the intake box 7 and spread the fire.

[0012]

The invention according to claim 1 of the present invention communicates with the attic between the lower part of the nose plate hanging from the eave tip of the roof and the eaves side end of the eave ceiling plate installed under the eaves. There is a ventilation gap, and a front cover of the eaves is attached so that it extends from the front of the nose plate to the end of the eaves ceiling side, and the inside of the intake box provided under the front cover of the eaves communicates with the ventilation gap. Let
Since a bent portion having a Z-shaped cross section is provided on the bottom surface side of the intake box, and a slit-shaped intake hole is provided in the upper piece and the oblique piece in the middle of the bent portion having the Z-shaped cross section, the eaves below Can be ventilated from the air intake hole to the inside of the intake box through the ventilation gap to the back of the hut, as well as to the upper part and the diagonal part of the bent part with a Z-shaped cross section. Since the intake hole is provided in the lower part, it is difficult to see the intake hole from under the eaves, and the appearance is good. Moreover, the intake hole is formed in the upper part and the oblique part of the bent part having a Z-shaped cross section. The intake area of the intake hole can be increased to increase the intake volume for smooth ventilation, and the intake area can be increased by providing an intake hole on the upper part of the bent part and the diagonal part. Therefore, to increase the intake amount, the protrusion height of the intake box below is increased. If there is no essential it is that there is no that is poor appearance.

Further, according to the second aspect of the present invention, the lower part of the nose plate hanging down from the eave tip of the roof and the eaves side end of the eave ceiling plate installed under the eave communicate with the attic. A ventilation gap is provided, and a front eaves cover is attached so that it extends from the front of the nose plate to the eaves side end of the eaves ceiling plate, and the inside of the intake box provided under the front eaves cover is communicated with the ventilation gap. , A plurality of bent portions having a substantially inverted L-shaped cross section are provided in a row in the eaves ridge direction on the bottom side of the intake box, and a slit-shaped intake hole is provided in a vertical piece of the plurality of bent portions having an inverted L-shaped cross section. Therefore, the air under the eaves can be ventilated from the air intake hole to the inside of the intake box through the ventilation gap to the back of the hut, and of course the vertical piece of the bent part with a generally inverted L-shaped cross section. Since the intake hole is provided in the, it is difficult to see the intake hole from under the eaves and the appearance is good, In addition, since the intake holes are provided in each of the vertical pieces of the bent portion having a substantially inverted V-shaped cross section, the intake area of the intake hole can be increased, the intake amount can be increased, and ventilation can be smoothly performed. In addition, since the intake area is increased by providing the intake holes in the vertical pieces of the plurality of bent portions, it is not necessary to increase the protruding height of the intake box downward to increase the intake amount. The appearance does not deteriorate. Further, in the invention according to claim 3 of the present invention, since a thermal foam body that foams and expands by heating to close the intake path in the intake box is installed inside the intake box,
Even if the back of the hut is ventilated and ventilated, when a fire occurs, the thermal foam will expand and expand, blocking the intake path and preventing the fire from spreading.

[Brief description of drawings]

FIG. 1 is a cross-sectional view showing an entire example of the present invention.

FIG. 2 (a) is a perspective view showing the eaves tip decorative cover of the above,
(B) is a cross-sectional view showing an enlarged intake box portion.

FIG. 3 is a sectional view showing the whole of another example of the above.

FIG. 4 is an enlarged perspective view of a main part of the above intake box.

FIG. 5 is a perspective view showing a conventional example.

[Explanation of symbols]

 1 Roof 2 Nose Plate 3 Ceiling Ceiling 4 Ventilation Gap 5 Back of House 6 Front Cover of Eave 7 Intake Box 9 Intake Hole 10 Bend 10a Upper Piece 10b Slanting 11 Bend 11a Vertical Piece 12 Thermal Foam

Claims (3)

[Claims] 1. A ventilation gap communicating with the back of the shed is provided between the lower part of the nose plate hanging from the eave tip of the roof and the end of the eave ceiling plate installed under the eaves on the eave side, and from the front of the nose plate. The eaves decorative cover is attached so as to cover the end of the eaves ceiling plate on the eaves side, and the inside of the intake box provided at the lower part of the eaves decorative cover communicates with the ventilation gap, and the Z-shaped cross section is on the bottom side of the intake box. An eaves-ventilating device, characterized in that a curved bent portion is provided, and a slit-shaped intake hole is provided in an upper piece portion and an intermediate slanted portion in an upper portion of the bent portion having a Z-shaped cross section. 2. A ventilation gap communicating with the back of the shed is provided between the lower part of the nose plate hanging from the tip of the eaves of the roof and the end of the eave ceiling plate installed under the eaves on the eaves side, and from the front of the nose plate. Cover the eaves cover with the eaves side end of the eaves ceiling plate, connect the inside of the intake box provided at the bottom of the eaves cover with the ventilation gap, and reverse the cross section to the bottom side of the intake box. An eaves-ventilating device comprising a plurality of L-shaped bent portions arranged in a row in the eaves ridge direction and a slit-shaped air intake hole provided in a vertical piece of the plurality of inverted L-shaped bent portions. 3. The eaves ventilation device according to claim 1, wherein the intake box is internally provided with a thermal foam that foams and expands by heating to close an intake path in the intake box.