JP3024070B2 - Eave ventilation structure - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation structure at an eaves tip, and more particularly to an arrangement of a ventilation wall provided with a ventilation hole and a fire protection cover to prevent the spread of fire simultaneously with ventilation. The present invention relates to an eaves ventilating structure that can be fitted over a front side of an eaves of a house to improve the appearance.

[0002]

2. Description of the Related Art Conventionally, as shown in a side sectional view of FIG. 6, for example, a ventilation gap d is formed between a nose cover b fixed to an eaves a and a wall material c below the eaves a. There is known a ventilation structure at the eaves in which a ventilation hole e is provided in the blindfold b so as to face the ventilation gap d, and the ventilation hole e communicates with the attic space f. However, in the above eaves ventilating structure, the purpose of fire protection is to provide between the ventilation hole e provided in the nose cover b so as to face the ventilation gap d and the attic space f. There is no shielding, and the flame directly enters the attic space f from the direction of the arrow, so that there is a problem that the fire is unprotected and the fire easily spreads.

In Japanese Patent Application Laid-Open No. Hei 7-259282, a plurality of ventilation holes communicating with the attic are formed in the bottom of the fascia, and a fire protection cover is provided at an upper position facing the ventilation holes. Are disclosed. However, since the fascia with the ventilation hole has a ventilation hole at the bottom thereof, the contamination of the hole edge of the ventilation hole due to rusting or dust adhesion is likely to be visible. There is a problem in appearance.

[0004]

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and is a ventilation structure made of a flame-retardant material or a non-combustible material attached to the eaves of a house. At the bottom of the fascia attached to the front, a front wall protruding below the fascia, a bottom wall extending from the front wall to the back eaves side, and a ventilation wall raised on the bottom wall facing the eaves A ventilation room is provided, which is surrounded by a ventilation hole formed from a lower end portion of the ventilation wall so as to allow outside air to be taken in through a ventilation hole, and is provided at both upper and lower ends of the ventilation wall to be fixed to a field edge. The fixed portion and the extending portion that shields the ventilation wall from below are connected to each other so as to protrude toward the rear eave, and the end of the ridge fixing portion is ventilated with an appropriate gap between the nose plate and the nose shield. Project from the front of the wall and from the end to the bottom wall. In which fire protection covering part hanging down to open the narrow gap than increased size is a configuration provided.

[0005]

Embodiments of the present invention will be specifically described below with reference to the drawings. FIG. 1 is a perspective view of the present invention, FIG. 2 is a rear view taken along the line XX of FIG.
FIG. 4 is a side view showing one embodiment of the present invention mounted on an eaves, FIG. 4 is a side sectional view showing a main part in one embodiment of the present invention, and FIG. Is shown in a side view.

The present invention relates to a ventilation structure 1 made of a flame-retardant material or a non-flammable material attached to the eaves of a house.
A front wall 111 projecting below the fascia plate 11, a bottom wall 13 extending from the front wall 111 to a rear eaves front side, and a bottom wall 13 facing the eaves facade. A ventilation room 12 is provided, which is surrounded by a ventilation wall 15 rising up and through which a fresh air is taken in from a lower end of the ventilation wall 15 through a ventilation hole 151 formed up and down. A ridge fixing portion 16 for fixing to the ridge and an extending portion 14 for blocking the ventilation wall 15 from below project from the rear eaves side, and are integrally connected to each other by a goby fold. End of nose shield 1
1 is protruded forward of the ventilation wall 15 with an appropriate gap t-1 therebetween, and a gap t-2 smaller than the rising dimension of the ventilation hole 151 between the end and the bottom wall 13. A fire protection cover 17 is provided which is opened and hangs down.

According to the present invention having the above-described structure, the arrangement of the ventilation wall 15 having the ventilation hole 151 and the fire protection cover 17 can prevent the spread of fire simultaneously with the ventilation.
Since the ventilation wall 15 is provided to face the eaves side, the ventilation wall 15 is blocked by the extension portion 14 so that contamination of the ventilation wall 15 and the like are not seen, and the appearance is improved.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS As shown in FIG.
Blindfold 11 attached to the front of the vehicle, and the blindfold 11
Of the front wall 111 is formed by projecting a lower portion of the front wall 111 to the front side, and a bottom wall 13 is formed rearward from a lower end of the front wall 111.
The bottom wall 13 protrudes rearward, the tip of the bottom wall 13 is bent to form an extended portion 14, and the front end of the extended portion 14 is raised to form a ventilation wall 15 with a vent hole 151 formed therein. Is formed, the ventilation chamber 12 surrounded by the front wall 111, the bottom wall 13, and the ventilation wall 15 is formed. The ventilation wall 15
2, a large number of ventilation holes 151 are formed upright from the lower end of the ventilation wall 15 at predetermined intervals in the horizontal direction, as shown in the rear view in FIG.

Further, the upper end of the ventilation wall 15 is extended rearward, and its rear end is folded back to form a field edge fixing portion 16, and the front end of the field edge fixing portion 16 is connected to the nose cover plate 11. Projecting forward of the ventilation wall 15 leaving a predetermined gap t-1 therebetween,
Further, at the protruding end, a fire protection cover portion 17 is formed so as to hang down from a position facing the ventilation room 12, and a predetermined gap t−2 is provided between the fire protection cover portion 17 and the bottom wall 13 of the ventilation room 12.
Is secured. The gap t-2 is set to be smaller than the rising dimension of the ventilation hole 151. According to the present invention, the nose cover 11, the ventilation room 12 surrounded by the front wall 111, the bottom wall 13, the ventilation wall 15, and the like, the extension portion 14, the field fixing portion 16, the fire protection cover portion 17, and the like are integrated. And is made of a flame-retardant material or a non-combustible material, preferably a non-combustible material.

In order to mount the present invention, as shown in a side view in FIG. 3, the ventilation structure 1 is mounted on the front surface of a siding base material A laid under a base plate D supporting a roof material C. At the same time that the fascia plate 11 is applied and fixed, at the same time, between the field edge B and the eaves ceiling H, which are arranged under the fascia substrate A at right angles thereto,
The nose cover plate 11 of the ventilation structure 1 is fixed to the front surface of the nose cover base material A by inserting and fixing the ridge fixing portion 16 of the ventilation structure 1 or as shown in the side view in FIG. At the same time as fixing, the rear end of the field edge fixing portion 16 of the ventilation structure 1 is applied to the front surface of the eave girder G to fix the upper surface of the field edge fixing portion 16 to the lower surface of the field edge B, and By sealing at the upper end, the invention can easily be mounted on the eaves.

The present invention mounted on the eaves tip as described above,
Since the ventilation room 12 is arranged in a horizontal state at the lower corner of the tip of the ridge B, as shown in FIG. 3, the flow of air entering from the eaves is passed through the ventilation wall 15 as shown by an arrow x. It passes through the pores 151, rises through the gap t-2 below the fire protection cover 17 in the ventilation room 12, and rises as shown by the dashed arrows B, B
Ventilation is performed by following a path extending from the gap t-1 between the spaces to the attic space E.

On the other hand, when the flame approaches the eaves due to the fire of the neighboring house or the like, the rising flame is blocked by the extending portion 14 protruding to the rear eaves side of the ventilation wall 15 and enters from the eaves. At this time, since the temperature is high, the rising angle of the flame becomes large as shown by the arrow y as shown in the sectional view of FIG. 4, and the gap between the fire protection cover portion 17 and the bottom wall 13 is formed by the ventilation hole 15.
1 is smaller than the rising dimension of the ventilation hole 1,
Immediately after passing through 51, it was blocked by the fire protection cover 17 and swirled,
It is possible to prevent the flame from entering the attic space E due to stagnation.

According to the present invention, the rear wall of the ventilation room 12 provided at the lower part of the fascia plate 11 is formed as a ventilation wall 15 having a ventilation hole 151, and a fire protection cover 17 is formed on the front side of the ventilation wall 15 in a hanging manner. With this, it is possible to prevent the spread of fire simultaneously with the ventilation. In addition, the ventilation wall 1 having the ventilation hole 151 formed therein
5 is provided facing the eaves side, and the ventilation wall 15 is obstructed by the extension 14 projecting from the bottom wall 13 to the eaves side, so that the contaminated ventilation wall 15 is not visible. Furthermore, even if the lower end of the eaves ceiling H is cut irregularly, it is obstructed by the extension portion 14 and becomes invisible, so that the appearance of the eaves is improved.

[0014]

Since the present invention has the above-described structure, the following effects can be obtained. That is, by the arrangement of the ventilation wall having the ventilation hole and the fire protection cover in the present invention, it is possible to prevent the spread of fire simultaneously with the ventilation, and the ventilation wall is provided facing the eaves side. In addition, since the ventilation wall is obstructed by the extended portion protruding from the bottom wall to the eaves front side, it is not visible, so that the effect of improving the appearance of the ventilation structure at the eaves is improved.

[Brief description of the drawings]

FIG. 1 shows the invention in a perspective view.

FIG. 2 is a rear view taken along the line XX of FIG. 1;

FIG. 3 shows a side view of one embodiment of the present invention mounted on an eaves tip.

FIG. 4 is a side sectional view showing a main part in one embodiment of the present invention.

FIG. 5 shows a side view of another embodiment of the present invention mounted on an eaves tip.

FIG. 6 is a side sectional view showing a conventional eaves structure.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Ventilation component 11 Nose cover 111 Front wall 12 Ventilation room 13 Bottom wall 14 Extension part 15 Ventilation wall 151 Vent hole 16 Nose fixing part 17 Fire protection cover A Nose concealing base material B Nose C Roof material D Nose plate E Attic space F Exterior wall G eaves girder H eaves ceiling

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int.Cl. ⁷ , DB name) E04D 13/15-13/16 E04D 1/94 E04D 1/70

Claims (1)

(57) [Claims] 1. A ventilation structure comprising a flame-retardant material or a non-combustible material attached to the eaves of a house, and protruding below a fascia plate below a fascia plate attached to the front of a fascia base material. The front wall, the bottom wall extending from the front wall to the back eaves side and the ventilation hole raised on the bottom wall facing the eaves, and formed with a ventilation hole rising from the lower end of the ventilation wall. A ventilation room is provided so that outside air can be taken in, and a ridge fixing portion for fixing to a ridge and an extending portion for shielding the ventilation wall from below protrude toward the rear eaves side at both upper and lower ends of the ventilation wall. The end of the ridge fixing portion is protruded forward of the ventilation wall with an appropriate gap between the nose cover and the end wall, and between the end and the bottom wall. A fire protection cover was provided with a gap narrower than the rising dimension of the vent hole and hung down. Ventilation constructs eaves having formed.