JP2003041726A - Ventilating device for roof - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent rainwater infiltrating a ventilation opening 20 from penetrating an attic. SOLUTION: This ventilating device comprises a top plate 1 having a top face part 4 and side face parts 5 suspended from both ends thereof, and a broom board 2 set to form a central air passage 9 communicating with the attic. In the top plate 1, the ventilation opening 20 is formed near both the ends of the top face part 4, and the side face part 5 side is mounted on the broom board 2. The broom board 2 comprises a partitioning part 10 the upper end of which is arranged with a prescribed space from the top face part 4 of the top plate 1, so that an air passage of through state communicating with the central air passage 9 and the ventilating opening 20 is formed between it and the top face part 4. A flashing board 23 is protrusively formed downward from the vicinity of the upper edge of the ventilating opening 20, and a baffle plate 24 is extended obliquely downward from the tip of the flashing board 23 along the inclination of the broom board 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation device installed in a roof ridge, and more particularly to a roof ventilation device for preventing rainwater entering through a ventilation port from further entering the attic.

[0002]

2. Description of the Related Art Generally, a ventilator installed in a roof ridge of this type is, for example, as shown in FIG.
The top plate portion 30 and the hem plate portion 31 are in a state of being integrally formed.

The top plate portion 30 includes a top surface portion 32 and the top surface portion 3.
2 and the side surface portion 33 that hangs from both ends, and the hem plate portion 31
Is extending from the lower end of the side surface portion 33 along the slope of the roof, and the hem plate portion 31 is fixed to the head tree 35 attached to the roof ridge portion 34.

In addition, ventilation openings 37 are formed near both ends of the top surface portion 32 of the top plate portion 30, and the outside is opened from the attic through the opening (not shown) of the ridge, the central ventilation passage 36, and the ventilation opening 37. And exhaust is possible.

Rainwater entering through the ventilation port 37 is
Although the water is discharged from the drain hole formed at the lower end of the side surface of the top plate portion 30, a water return piece 38 is formed in the vicinity of the ventilation port 37 so as to prevent rain from entering the attic.

[0006]

However, in such a ventilator, when the wind and rain are strong, it is not enough to use only the reversing piece, and the rain sometimes enters the attic along with the wind.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above problems (deficiencies), and in particular to provide a roof ventilation device for preventing rainwater entering from the ventilation port from further entering the attic.

[0008]

In order to solve the above-mentioned problems, a roof ventilation device according to the present invention includes a top plate having a top surface portion and side surfaces hanging from both widthwise end portions of the top surface portion, and It has a partition part that is provided inside the top plate and forms a central air passage communicating with the attic, and has a hem plate installed in the attic part, wherein the top plate is the both end portions of the top surface part. A ventilation port is formed in the vicinity of the side, the side surface side is attached to the hem plate, and the hem plate is arranged such that the upper end of the partition part is arranged at a predetermined distance from the top surface part of the top plate. In a ventilation device for a roof in which a ventilation hole in a communicating state with the central ventilation passage and the ventilation opening is formed between the roof surface and a top surface portion, a water return plate is formed to project downward from the vicinity of the upper edge of the ventilation opening. , Diagonally along the slope of the bottom plate from the tip of the water return plate Rainwater that has entered from extending the ventilation opening of the baffle towards is characterized in that so as to prevent from entering the central air passage.

It is preferable that the baffle plate is interposed between the ventilation port and the skirt plate so that the skirt plate is not directly exposed from the ventilation port.

[0010]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below. 1 to 3 show a roof ventilation device according to an embodiment of the present invention.

The roof ventilation device is installed in the ridge of the roof R and has a top plate 1 and a pair of hem plates 2 facing each other as separate members.

The top plate 1 and the skirt plate 2 are both formed by extrusion molding a metal material or a plastic material, or by roll forming a metal plate.

Both sides of the top plate 1 are rotatable around a central hinge portion 3, and a top surface portion 4 which is inclined downward from the hinge portion 3 toward both sides in the width direction, and the top surface portion 4 of the top surface portion 4. It has a side surface portion 5 hanging from both end portions in the width direction.

Each hem plate 2 is provided inside the top plate 1 and a hem part 8 fixed on a head tree 7 mounted on the ridge part 6 by fixing means such as nails or wood screws. It integrally has a partition 10 that communicates with the attic and forms a central ventilation passage 9.

The partition portion 10 includes a first rising portion 11 that vertically rises from an end portion of the hem portion 8 in the facing direction, and an inclined portion 13 that tilts obliquely upward in the facing direction from an upper end portion of the first rising portion 11. A second rising portion 12 that rises vertically from the upper end of the slope of the slope 13 is provided, and a chamber 14 is formed between the partition 10 and the top plate 1.

A pair of upper and lower closing pieces 15 and 16 for closing the lower portion of the chamber 14 are provided between the first rising portion 11 and the side surface portion 5 of the top plate 1 with a space therebetween. Has been. Drainage holes 25 and 26 are formed in the longitudinal direction of the upper and lower blocking pieces 15 and 16 in a non-polymerized state.

Then, with the connecting piece 17 of the upper blocking piece 15 in contact with the side surface portion 5 of the top plate 1, the side surface portion 5 and the connecting piece 17 are connected and fixed by the screw 18, whereby the top plate 1 and It is designed to connect and fix the hem plate 2.

By connecting and fixing the top plate 1 and the hem plate 2, the upper end of the partitioning part 10 is arranged at a predetermined distance from the top surface part 4 of the top plate 1, and a central ventilation path is provided between the top part 4 and the top surface part 4. A ventilation path is formed so as to communicate with the chamber 9 and the chamber 9.

Further, the top plate 1 is provided with ventilation openings 20 near both ends of the top surface portion 4. The ventilation port 20 is divided into a plurality of, for example, two in the width direction of the top surface portion 4 via the partition piece 21. Then, a blow-out preventing piece 22 protruding downward is formed between the two formed ventilation openings 20 to prevent the rain water from being blown into the ventilation passage from the ventilation openings 20 located particularly on the widthwise end side. It is designed to prevent rainwater from entering the attic.

Further, a water return plate 23 protruding downward from the vicinity of the upper edge of the ventilation port 20 is formed between the ventilation passage in the top surface portion 4 and the ventilation port 20 on the center side, and the water return plate 23 is formed. A baffle plate 24 extends obliquely downward from the lower end of the skirt plate 2 along the inclination of the skirt plate 2. The baffle plate 24 is interposed between the ventilation port 20 and the hem plate 2, and is formed so that the hem plate 2 is not directly exposed from the ventilation port 20.

As a result, the rainwater entering from the ventilation port 20 is prevented from being blown into the ventilation passage by the water return plate 23, and the rainwater blown to the water return plate 23 is further guided to the baffle plate 24 and is moved downward. Flow down to. In the meantime, raindrops aggregate and grow. For this reason, the rainwater is transported away from the central ventilation passage 9 by the baffle plate 24, and the weight of the rainwater is increased so that the rainwater is not easily carried by the wind. And is guided to flow downward. Therefore, entry into the central ventilation passage 9 side is reliably prevented, and the waterproof performance is improved.
Rainwater is discharged to the outside from drainage holes 25 and 26 formed in the longitudinal direction of the upper and lower blocking pieces 15 and 16 in a non-polymerized state. Even if rainwater is blown from the lower drain hole 26, it is possible to reliably prevent the rainwater from being blown into the chamber 14 by being obstructed by the upper blocking piece 15.

The ventilation system for the roof is not limited to the above example. For example, as shown in FIG. 4, the flattened structure is formed by forming the slanted edge 27 from the lower end of the side surface portion 5 of the top plate of the above embodiment and omitting the first rising portion of the hem plate 2. May be In addition, the ventilation port 2 of the top plate 1
A partition piece 21 for dividing 0 and a blow-in prevention piece 22 are formed in a substantially T shape. 4, the same reference numerals as those in the examples of FIGS. 1 to 3 indicate the same members.

By the way, between the central ventilation passage 9 and the ventilation port 20, a water return plate 23 protruding downward from the vicinity of the upper edge of the ventilation port 20 is formed, and the water return plate 23 is formed.
A baffle plate 24a extends obliquely downward from the lower end of the skirt plate 2 along the inclination of the skirt plate 2. Further, another baffle plate 24b is formed so as to face the baffle plate 24a also from the side portion of the side surface portion 5. The baffles 24a and 24b are formed so as to be flush with each other and above the lower end of the blow-in prevention piece 22. The both baffle plates 24 are arranged inside the lower portion of the partition piece 21 with a space. In this way, the baffles 24a and 24b are connected to the ventilation port 20 and the bottom plate 2.
The hem plate 2 is not exposed directly from the ventilation port 20 by interposing between the two.

Also with the above structure, the rainwater entering from the upper side of the ventilation port 20 is guided from the water return plate 23 to the upper baffle plate 24a and flows downward. Also, ventilation port 2
Part of the rainwater entering from the lower side of 0 directly hits the blow-in prevention piece 22 and flows down as it is, and the other part is guided by the lower baffle 24b so as to hit the blow-in prevention piece 22. Then, after being transferred away from the central ventilation passage 9 by the upper baffle plate 24a, it flows down from between the upper and lower baffle plates 24. During that time, the rainwater increases in weight and becomes difficult to be carried by the wind, and when it falls on the skirt plate 2, it is guided so as to flow downward along the inclination of the skirt plate 2. Therefore, entry into the central ventilation passage 9 side is reliably prevented, and the waterproof performance is improved.

Further, the ventilation device may be configured such that the cross section of the top surface portion 4 of the top plate 1 is curved in an arc shape as shown in FIG. The hem plate 2 is the same as the example of FIG. Also in this example, the same reference numerals as those in the examples of FIGS. 1 to 3 indicate the same members.

A water return plate 23 is formed so as to project downward from the vicinity of the upper edge of the ventilation port 20, and the baffle plate 24 is obliquely downward from the lower end of the water return plate 23 along the inclination of the hem plate 2. Has been extended. The tip of the baffle plate 24 extends below a line orthogonal to the lower edge of the ventilation port 20. Therefore, the baffle plate 24 includes the ventilation port 20 and the hem plate 2.
The hem plate 2 is not exposed directly from the ventilation port 20 by interposing between the two. Even with the above-described configuration in which 21 is a partition of the ventilation port 20, rainwater entering from the upper side of the ventilation port 20 is guided from the water return plate 23 to the upper baffle plate 24 and flows downward. In addition, when it falls on the bottom plate 2, it is guided so as to flow downward along the inclination of the bottom plate 2. Therefore, after being transferred away from the central air passage 9 by the baffle plate 24, it flows down from the tip of the baffle plate 24. During that time, the rainwater increases in weight and becomes difficult to be carried by the wind, and when it falls on the skirt plate 2, it is guided so as to flow downward along the inclination of the skirt plate 2.
Therefore, entry into the central ventilation passage 9 side is reliably prevented, and the waterproof performance is improved.

[0027]

According to the first aspect of the present invention, the rainwater entering from the ventilation port is prevented from being blown into the ventilation passage by the water return plate, and the rainwater sprayed on the water return plate is further disturbed. It is guided by and flows down. In the meantime, raindrops aggregate and grow. For this reason, rainwater is transported away from the central ventilation passage by the baffle plate,
In addition, the weight increases and it is difficult for the wind to carry, and when it falls on the hem plate, it is guided so as to flow downward along the slope of the hem plate. Therefore, it is surely prevented from entering the central ventilation passage side, and the waterproof performance is improved.

According to the second aspect of the present invention, the baffle plate is interposed between the ventilation port and the hem plate so that the hem plate is not exposed directly from the ventilation port. Is reliably prevented from flowing into the central ventilation passage.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of an example of a roof ventilation device according to the present invention.

FIG. 2 is a perspective view of the ventilation device.

FIG. 3 is an enlarged view of a part of the ventilation device.

FIG. 4 is a sectional view of another example of the ventilation device.

FIG. 5 is a cross-sectional view of still another example of the ventilation device.

FIG. 6 is a cross-sectional view of a conventional roof ventilation device.

[Explanation of symbols]

1 Top plate 2 hem plate 9 Central ventilation passage 20 ventilation openings 23 Water flip board 24 baffle

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Ken Ueda             1-11-1 Osaki, Shinagawa-ku, Tokyo Shin Nikkei             Within the corporation F term (reference) 2E001 DA03 DB02 FA16 NA07 NC01

Claims (2)

[Claims] 1. A top plate having a top surface part and side parts hanging from both ends of the top surface part 4 in the width direction, and a partition provided inside the top plate and forming a central ventilation passage communicating with the attic. And a bottom plate installed on the attic, and the top plate has ventilation openings near both end sides of the top part, and the side part side is attached to the bottom plate. The hem plate is arranged in such a manner that the upper end of the partition portion is disposed at a predetermined distance from the top surface portion of the top plate, and the bottom plate is in communication with the central ventilation passage and the ventilation port between the top plate portion 4 and the bottom plate. In a roof ventilator having a ventilation port, a water baffle plate is formed so as to project downward from the vicinity of the upper edge of the ventilation port, and the tip of the water baffle plate is slanted downward along the slope of the hem plate. Rainwater that extends from the plate and enters through the ventilation port is vented to the center. Ventilator roof being characterized in that so as to prevent from entering the. 2. The ventilation device for a roof according to claim 1, wherein the baffle plate is interposed between the ventilation port and the skirt plate, and is formed so that the skirt plate is not directly exposed from the ventilation port.