JP5235339B2 - Ventilation device and house ventilation structure using the same - Google Patents

Description

  The present invention relates to a ventilation device for introducing outside air into an attic space of a house for ventilation, and a ventilation structure of a house using the ventilation device.

  DESCRIPTION OF RELATED ART Conventionally, the ventilation apparatus for introduce | transducing outside air into the attic space of a house and ventilating is provided practically (for example, refer patent document 1). FIG. 6 is a schematic cross-sectional view showing a conventional ventilator, and the ventilator 100 shown includes a box-shaped ventilator main body 106 attached to an eaves ceiling 104 of a house 102. An air intake opening 108 for sucking outside air into the ventilator main body 106 is provided on the side surface on the outdoor side of the ventilator main body 106. A ventilation opening 112 for communicating with the attic space 110 of the house 102 is provided. A drainage opening 114 is provided at the lower end of the ventilator body 106 to drain rainwater collected inside the ventilator body 106 to the outside. Further, inside the ventilation device main body 114, a closing wall portion 118 having a closing opening 116 and a closing member 120 swingably attached to the closing wall portion 118 are provided. The closing member 120 swings between a closing position (shown by a two-dot chain line in FIG. 6) for closing the closing opening 116 and an opening position (shown by a solid line in FIG. 6) for opening the closing opening 116. It is configured to be movable and is elastically biased toward the open position by a spring member 122.

  Ventilation of the attic space 110 of the house 102 using the ventilator 100 described above is performed as follows. When the wind is weak, the closing member 120 is positioned in the open position. When wind and rain flow into the ventilator main body 106 through the intake opening 108 in such a state, the rainwater collects in the ventilator main body 106 and opens to the drainage. The air is discharged to the outside through the portion 114, and the wind is introduced into the attic space 110 of the house 102 through the closing opening 116 and the ventilation opening 112, whereby the attic space 110 of the house 102 is ventilated. Further, during strong winds, the closing member 120 is positioned from the open position to the closed position by the wind pressure of the outside air sucked into the inside of the ventilator main body 106 through the intake opening 108, thereby blocking the entry of wind and rain into the attic space 110. Is done.

Japanese Utility Model Publication No. 63-57445

  However, the conventional ventilation device 100 described above has the following problems. When wind and rain flow into the inside of the ventilator main body 106 through the inlet opening 108 when the closing opening 116 is not completely closed by the closing member 120, rainwater collected inside the ventilator main body 106 is collected. There is a risk of flowing into the house side due to the wind pressure of outside air and entering the attic space 110 from the ventilation opening 112. When rainwater enters the attic space 110 in this manner, there is a problem that mold, corrosion, condensation, etc. occur in the house 102, and adversely affect the living environment. Further, since the intake opening 108 is opened downward, it is difficult for the wind from the lateral direction to be sucked into the inside of the ventilator main body 106 through the intake opening 108 when the wind is weak. There is a problem that cannot be performed efficiently.

The objective of this invention is providing the ventilation apparatus which can prevent reliably that rainwater penetrate | invades into the attic space of a house, and the ventilation structure of a house using the same.
Another object of the present invention is to provide a ventilator capable of efficiently ventilating an attic space.

The ventilator according to claim 1 of the present invention is a ventilator for introducing outside air into the attic space of a house for ventilation,
A ventilator body attached to the eaves part of the house; an intake opening provided on the outdoor side of the ventilator body, for sucking outside air into the ventilator body; and a house side of the ventilator body A ventilation opening for communicating the inside of the ventilation device main body with the attic space of the house, a closing member for closing the ventilation opening, and a base plate of the roof of the house A second drainer for preventing water flowing down the roof of the house from reaching the outdoor side of the ventilator body; With
The intake opening is opened in the lateral direction, and the closing member has one end inserted into and crimped to the inside of the second draining portion, and the other end of the support through the connecting member. The vent opening is configured to be swingable between a closed position for closing the vent opening and an open position for opening the vent opening. Is provided with a first water return portion extending obliquely downward toward the outdoor side,
When the wind is weak, the closing member is positioned in the open position, and the outside air sucked into the ventilation device main body through the intake opening is introduced into the attic space of the house through the ventilation opening, In a strong wind, the closing member is positioned from the open position to the closed position by the outside air sucked into the ventilation apparatus main body through the intake opening.

  In the ventilator according to claim 2 of the present invention, the first water return portion extends obliquely downward toward the outdoor side at an angle of 45 to 60 degrees with respect to the vertical direction. And

  Furthermore, in the ventilator according to claim 3 of the present invention, a sealing member is provided at a lower end portion of the closing member, and when the closing member is positioned at the closing position, the sealing member is the first member. It seals on the house side of the said ventilation apparatus main body under the water return part of this.

  In the ventilator according to claim 4 of the present invention, the lower end portion of the closing member is provided with a folded portion folded in a predetermined direction, and the sealing member is attached to the folded portion. It is characterized by.

  Furthermore, in the ventilator according to claim 5 of the present invention, water flowing down the outdoor side of the ventilator body is prevented from reaching the outer wall surface of the house at the lower end portion on the outdoor side of the ventilator body. The 1st draining part for doing is provided, It is characterized by the above-mentioned.

  Further, in the ventilator according to claim 6 of the present invention, the first drainer is provided with a drain opening, and the rainwater collected inside the ventilator main body is the drain opening. It is characterized by being discharged to the outside through.

  Furthermore, in the ventilator according to claim 7 of the present invention, the upper end portion of the mounting portion is provided with a second water return portion that is folded upward toward the outdoor side. To do.

  Furthermore, in the ventilator according to claim 8 of the present invention, a plurality of the intake openings are provided, and each of the plurality of intake openings is provided with a rainwater blocking part formed by punching. The rainwater blocking portion is bent in a substantially U shape toward the inside of the ventilation device main body.

  In the ventilator according to claim 9 of the present invention, the rainwater blocking part protrudes 1.0 to 4.0 mm toward the inside of the ventilator main body.

In the ventilator according to claim 10 of the present invention, the house ventilation structure includes a ventilator provided at the eaves of the house, and a ventilator communicating with the attic space of the house. A ventilation structure of a house in which outside air sucked by the ventilation device is exhausted from the ventilation section through the attic space,
The ventilator includes a ventilator main body attached to an eaves part of the house, an intake opening provided on the outdoor side of the ventilator main body, for taking outside air into the ventilator main body, and the ventilation A ventilation opening provided on the house side of the apparatus main body for communicating the inside of the ventilation apparatus main body with the attic space of the house; a closing member for closing the ventilation opening; and the house And a lower end portion of the mounting portion for preventing water flowing down the roof of the house from reaching the outdoor side of the ventilator body. With two drainers,
The intake opening is opened in the lateral direction, and the closing member has one end inserted into and crimped to the inside of the second draining portion, and the other end of the support through the connecting member. The vent opening is configured to be swingable between a closed position for closing the vent opening and an open position for opening the vent opening. Is provided with a first water return portion extending obliquely downward toward the outdoor side,
When the wind is weak, the closing member is positioned in the open position, and the outside air sucked into the ventilation device main body through the intake opening is introduced into the attic space of the house through the ventilation opening, In a strong wind, the closing member is positioned from the open position to the closed position by the outside air sucked into the ventilation apparatus main body through the intake opening.

According to the ventilation device of the first aspect of the present invention, the ventilation opening is provided with the first water return portion extending obliquely downward toward the outdoor side. Even when rainwater collected inside the ventilator body flows to the house side due to the wind pressure of the outside air in a state where the water is not completely blocked, this rainwater is blocked by the first water return section, Intrusion into the attic space of the house through the ventilation opening can be reliably prevented. Therefore, the occurrence of mold, corrosion, condensation, etc. due to rainwater entering the attic space can be prevented, and the living environment can be kept good. In addition, since the air intake opening is opened in the horizontal direction, it is easy for air from the horizontal direction to be sucked into the inside of the ventilator body through the air intake opening when the wind is weak. Can be done well. In addition, since the ventilator body is attached to the eaves portion of the house, the outside air is efficiently sucked into the inside of the ventilator body from the intake opening, whereby the outside air can be efficiently introduced into the attic space. Therefore, when the temperature of this attic space becomes high (for example, about 50 to 60 ° C.) by transferring solar heat to the attic space of the house through, for example, a roofing material or a field board, the attic space The temperature of the attic space can be efficiently lowered by the introduced outside air, and the temperature inside the house can be prevented from becoming high due to the temperature rise of the attic space. Moreover, since the second draining portion is provided at the lower end portion of the mounting portion, it is possible to prevent water flowing down the roof of the house from reaching the outdoor side of the ventilator body, This rainwater can be prevented from flowing into the inside of the ventilator body through the intake opening.
Moreover, the one end part of a support member is reliably supported inside the 2nd draining part, and it is prevented that rainwater penetrate | invades into an attic space from the clearance gap between a support member and a closure member.

  Moreover, according to the ventilation apparatus of Claim 2 of this invention, since the 1st water return part is extended diagonally downward toward the outdoor side at an angle of 45-60 degrees with respect to the perpendicular direction, When the rainwater collected inside the ventilator body flows to the house side due to the wind pressure of the outside air, this rainwater is effectively rebounded to the outdoor side by the first water return section, and the rainwater is passed through the ventilation opening and It is possible to more reliably prevent entry into the attic space. In addition, as for the angle with respect to the perpendicular direction of a 1st water return part, 50-55 degree | times is more preferable.

  Furthermore, according to the ventilator according to claim 3 of the present invention, when the closing member is positioned at the closing position, the seal member provided at the lower end of the closing member is located below the first water return portion. Since it is sealed to the house side of the main body, when rain water collected inside the ventilation device main body flows to the house side due to the wind pressure of the outside air, this rain water can be surely blocked by the sealing member.

  In the ventilator according to claim 4 of the present invention, the lower end portion of the closing member is provided with a folded portion that is folded in a predetermined direction, and a sealing member is attached to the folded portion. The strength of the lower end portion of the closing member can be increased. Therefore, when the closing member is positioned at the closing position, the sealing performance between the sealing member and the house side of the ventilation device main body can be improved.

  Furthermore, according to the ventilator according to claim 5 of the present invention, since the first draining portion is provided at the lower end portion on the outdoor side of the ventilator body, the water flowing down on the outdoor side of the ventilator body Reaching the outer wall surface of the house can be prevented, thereby preventing the rainwater from entering the gap between the ventilator body and the outer wall surface of the house.

  According to the ventilator of claim 6 of the present invention, since the drainage opening is provided in the first draining part, wind and rain flowed into the ventilator main body through the intake opening. In this case, rainwater collected inside the ventilator main body can be discharged to the outside through the drainage opening.

  Furthermore, according to the ventilator of Claim 7 of this invention, the 2nd water turned up toward the outdoor side at the upper side edge part of the mounting part with which the base plate of the roof of a house is mounted | worn is carried out. Since the return part is provided, when rainwater flows in between the roofing material and the mounting part, this rainwater can be blocked by the second water return part. Therefore, it is possible to prevent rainwater from entering between the roofing material and the field board, and it is possible to prevent the occurrence of rain leakage in the house.

  Furthermore, according to the ventilator according to claim 8 of the present invention, each of the plurality of intake openings is provided with a rainwater blocking part formed by punching, and the rainwater blocking part is provided with the ventilator. Since it is bent in an approximately U shape toward the inside of the main body, for example, when the wind speed is about 50 m / s, the rainwater is rebounded and blocked by the rainwater blocking section. Inflow to the inside can be suppressed. Further, when outside air is sucked into the ventilator main body through a plurality of intake openings, the outside air is diffused in almost the entire interior of the ventilator main body by colliding with the rainwater blocking portion, and therefore the blocking member is It is pressed with substantially the same wind pressure in the length direction, and the closing member can be reliably positioned at the closing position.

  According to the ventilator of claim 9 of the present invention, since the rainwater blocking portion protrudes 1.0 to 4.0 mm toward the inside of the ventilator body, the width of the intake opening is 1 For example, pests such as bees can be prevented from entering the attic space of the house through the air intake opening. In addition, as for the protrusion amount to the inside of the ventilation apparatus main body of a rainwater cutoff part, 2.0-3.0 mm is more preferable.

Further, according to the ventilation structure for a house according to claim 10 of the present invention, since the first water return portion extending obliquely downward toward the outdoor side is provided in the ventilation opening portion, Even when the rainwater collected inside the ventilator body flows to the house side due to the wind pressure of the outside air when the ventilation opening is not completely closed, the rainwater is blocked by the first water return section. Thus, it is possible to reliably prevent rainwater from entering the attic space of the house through the ventilation opening. Therefore, the occurrence of mold, corrosion, condensation, etc. due to rainwater entering the attic space can be prevented, and the living environment can be kept good. In addition, since the air intake opening is opened in the horizontal direction, it is easy for air from the horizontal direction to be sucked into the inside of the ventilator body through the air intake opening when the wind is weak, and ventilation of the attic space of the house is efficient. Can be done well. In addition, since the ventilator body is attached to the eaves portion of the house, the outside air is efficiently sucked into the inside of the ventilator body from the intake opening, whereby the outside air can be efficiently introduced into the attic space. Therefore, when the temperature of this attic space becomes high (for example, about 50 to 60 ° C.) by transferring solar heat to the attic space of the house through, for example, a roofing material or a field board, the attic space The temperature of the attic space can be effectively reduced by the introduced outside air, and the temperature inside the house can be prevented from becoming high due to the temperature increase of the attic space. Moreover, since the second draining portion is provided at the lower end portion of the mounting portion, it is possible to prevent water flowing down the roof of the house from reaching the outdoor side of the ventilator body, This rainwater can be prevented from flowing into the inside of the ventilator body through the intake opening.
Moreover, the one end part of a support member is reliably supported inside the 2nd draining part, and it is prevented that rainwater penetrate | invades into an attic space from the clearance gap between a support member and a closure member.

Hereinafter, various embodiments of a ventilation device according to the present invention and a ventilation structure of a house using the same will be described with reference to the accompanying drawings.
[First Embodiment]
First, with reference to FIGS. 1-4, the ventilation apparatus of 1st Embodiment and the ventilation structure of a house using the same are demonstrated. FIG. 1 is a perspective view showing a ventilator according to a first embodiment of the present invention, FIG. 2 is a schematic sectional view showing a ventilation structure of a house using the ventilator of FIG. 1, and FIG. FIG. 4 is a schematic cross-sectional view showing a state in which the closing member of the ventilating device of FIG. 2 is positioned at an open position, and FIG. 4 is a schematic cross-sectional view showing a state in which the closing member of the ventilating device of FIG. is there.

  With reference to FIG. 2, the ventilation structure of the house 2 shown in the figure is a ventilation building 12 having a ventilation device 6 attached to the eaves part 4 of the house 2 and a ventilation port 10 provided on the top of the roof 8 of the house 2. (Which constitutes a ventilation section) and an attic space 14 that allows the inside of the ventilation device 6 and the ventilation opening 10 of the ventilation building 12 to communicate with each other. The attic space 14 is formed below a field board 18 provided on the upper side of the rafter 16. Further, a roof material 64 such as a tile is sown on the baseboard 18 through a lower roofing material (roofing) (not shown).

  Next, referring also to FIGS. 1, 3, and 4, the illustrated ventilator 6 includes a ventilator body 22 that is attached to the eaves portion 4 of the house 2. The ventilator main body 22 is made of, for example, a metal material such as a galvalume steel plate or an aluminum material, and is configured to be horizontally long corresponding to the length of the eaves portion 4 of the house 2. Closed cover members (not shown) are provided at both ends of the ventilator main body 22, and both end portions of the ventilator main body 22 are closed by the close cover member. A plurality of intake openings 26 for taking outside air into the inside of the ventilator body 22 are provided on the side surface 24 on the outdoor side of the ventilator body 22, and the plurality of intake openings 26 are arranged horizontally. It opens in a direction (left direction in FIGS. 2 to 4) and is disposed at a predetermined interval in a lateral direction (left and right direction in FIG. 1). Each of the plurality of intake openings 26 is provided with a rainwater blocking portion 28 formed by stamping the press, and the rainwater blocking portion 28 has a substantially U-shape toward the inside of the ventilator main body 22. It is bent and protrudes about 2.6 mm toward the inside of the ventilator main body 22.

  A ventilation opening 32 is provided on the side surface 30 of the ventilation device main body 22 on the house side, and the inside of the ventilation device main body 22 and the attic space 14 of the house 2 communicate with each other through the ventilation opening 32. Has been. A first water return portion 34 is provided at the lower end portion of the ventilation opening 32 (that is, the upper end portion of the side surface 30 on the house side of the ventilator main body 22). , And extends obliquely downward toward the outdoor side at a predetermined angle θ (for example, about 53 degrees) with respect to the vertical direction.

  A first draining portion 36 extending downward is provided at the lower end portion on the outdoor side of the ventilator main body 22, and a plurality of circular drainage, for example, are provided on the side surface of the first draining portion 36 on the house side. Opening portions 38 are provided at predetermined intervals in the lateral direction (left-right direction in FIG. 1). The outer diameter of the drain opening 38 is set to about 5 mm, for example. Further, a waterproof tape 42 is interposed in a gap between the house side surface 30 of the ventilator body 22 and the outer wall surface 40 of the house (for example, a windbreak plate). Intrusion is prevented.

  Further, a mounting portion 44 to be mounted on the base plate 18 of the roof 8 of the house 2 is provided at the upper end portion of the ventilator main body 22, and this mounting portion 44 is obliquely upward from the outdoor side toward the house side. It extends to. A second water return portion 46 that is folded upward toward the outdoor side is provided at the upper end portion of the mounting portion 44, and the lower end portion thereof extends obliquely downward toward the outdoor side. A second draining portion 48 is provided. The attachment portion 44 is attached to the lower end portion of the field plate 18 by, for example, engaging the tip of the hanging piece 50 attached to the field plate 18 with the second water return portion 46. The lower material is disposed so as to cover the upper surface of the mounting portion 44.

  A closing member 52 for closing the ventilation opening 32 is provided inside the ventilation device main body 22. The closing member 52 is formed in a horizontally long plate shape, and a folded portion 54 that is folded in a predetermined direction (for example, a house side) is provided at a lower end portion thereof. The folded portion 54 has, for example, a tape-like seal. A member 56 is attached. One end portion of a support member 58 is inserted and pressure-bonded inside the second draining portion 48 of the mounting portion 44, so that one end portion of the support member 58 is reliably supported inside the second draining portion 48. The The other end of the support member 58 is connected to the upper end of the closing member 52 via a connecting member 60 formed of a soft material, for example, a rubber material such as elastomer or a resin material such as hard resin and soft resin. Are swingably connected. The other end of the support member 58 is folded in a predetermined direction and is crimped to one end of the connection member 60, and the upper end of the closing member 52 is folded in a predetermined direction and is crimped to the other end of the connection member 60. Thus, the gap between the support member 58 and the closing member 52 is sealed by the connection member 60, and rainwater is prevented from entering the attic space 14 from this gap. Further, the other end portion of the support member 58 extends substantially parallel to the lower end surface of the field plate 18 so that the front end portion of the field plate 18 is sandwiched between the mounting portion 44 and the other end portion of the support member 58. Thus, the ventilator 6 is securely fixed to the eaves portion 4, and fluttering of the ventilator 6 due to, for example, a gust of wind speed of about 50 m / s or more is prevented.

  The closing member 52 is configured to be swingable between an open position (see FIG. 3) for opening the ventilation opening 32 and a closing position (see FIG. 4) for closing the ventilation opening 32. . When the closing member 52 is positioned at the open position, the closing member 52 extends substantially in the vertical direction. Further, when the closing member 52 is positioned at the closing position, the closing member 52 extends at a predetermined angle to the house side with respect to the vertical direction, and in this state, the seal member 56 is ventilated below the first water return portion 34. It is sealed to the side surface 30 on the house side of the apparatus main body 22.

  The elastomer has light resistance and heat resistance. When the connection member 60 is formed of such an elastomer, sunlight introduced into the ventilator main body 22 through the plurality of intake openings 26 is used. The connection member 60 is prevented from being corroded by solar heat.

  Next, the ventilation method of the attic space 14 of the house 2 using the above-described ventilation device 6 will be described as follows. If the outside air is sucked into the ventilator main body 22 through the plurality of intake openings 26 when the outside air speed is relatively low, the closing member 52 is moved to the open position (or the open position and the closed position) by the wind pressure of the outside air. (See FIG. 3), and the outside air thus sucked in is introduced into the attic space 14 of the house 2 through the ventilation opening 32. The outside air thus introduced is exhausted from the ventilation port 10 of the ventilation building 12 through the attic space 14 (see FIG. 2), and thus the attic space 14 is ventilated. Since the plurality of intake openings 26 are opened in the lateral direction, the wind from the lateral direction is efficiently sucked into the inside of the ventilator main body 22 through the plurality of intake openings 26 when the wind is weak.

  Further, when solar heat is transmitted to the attic space 14 via the roofing material 64, the field plate 18 or the like, the temperature in the attic space 14 is raised and becomes higher than the outside air temperature. Thus, when the temperature of the attic space 14 becomes high (for example, about 50 to 60 ° C.), the outside air is easily introduced into the attic space 14 through the plurality of intake openings 26 due to a temperature difference between the outdoor and the attic space 14. The introduced outside air efficiently flows upward in the attic space 14. Thereby, the temperature of the attic space 14 can be efficiently lowered by the outside air introduced into the attic space 14, and the temperature in the house 2 (for example, the living room) becomes high due to the temperature increase of the attic space 14. Can be prevented.

  When wind and rain flow into the inside of the ventilator main body 22 through the plurality of intake openings 26 in this weak wind, the wind and rain are separated into wind and rain water by hitting the blocking member 52. Rainwater accumulates inside the ventilator main body 22 and is discharged to the outside through the drainage opening 38, and the discharged rainwater flows down to the rain gutter 62 attached to the outer wall surface 40 of the house 2. Further, the wind is introduced into the attic space 14 of the house 2 through the ventilation opening 32, and is discharged from the ventilation opening 10 of the ventilation building 12 through the attic space 14. In this state, when rainwater stored inside the ventilator main body 22 flows to the house side due to the wind pressure of the outside air, the rainwater is bounced back to the outdoor side by the first water return portion 34, and the rainwater is recirculated to the ventilation opening 32. Intrusion into the attic space 14 is prevented.

  Further, during rain, the rain water that flows down the roof material 64 sown by the field board 18 flows downward from the tip of the second draining portion 48 of the mounting portion 44, so that the rain water flows into a plurality of intake air. Intrusion into the inside of the ventilator main body 22 from the opening 26 for use is prevented.

  In addition, rainwater that flows down the side surface 24 on the outdoor side of the ventilator main body 22 starts to flow downward from the front end portion of the first draining portion 36, whereby the rainwater flows on the bottom surface of the ventilator main body 22 and the house. It is possible to prevent the rainwater from entering the gap between the side wall 30 on the house side of the ventilation device main body 22 and the outer wall surface 40 of the house 2.

  When rainwater flows into the gap between the roofing material 64 and the mounting portion 44 and the rainwater flows on the upper surface of the mounting portion 44 toward the house by the wind pressure of the outside air, the rainwater is caused by the second water return portion 46. It is bounced back to the outdoor side. Therefore, rainwater can be prevented from entering the gap between the roofing material 64 and the field board 18, and rain leakage of the house 2 can be prevented.

  When the wind speed of the outside air is relatively high, the closing member 52 is swung in the direction indicated by the arrow P by the wind pressure of the outside air sucked through the plurality of intake openings 26 and is positioned from the open position to the closing position (see FIG. 4). As a result, when wind and rain flow into the inside of the ventilator main body 22 through the plurality of intake openings 26, the wind and rain is blocked by the closing member 52, and rainwater enters the attic space 14 through the ventilation openings 32. Is prevented. Further, since the sealing member 56 is sealed to the side surface 30 on the house side of the ventilator body 22 below the first water return portion 34, the rainwater accumulated inside the ventilator body 22 is moved to the house side by the wind pressure of the outside air. Even when it flows, the flowing rainwater is reliably blocked by the seal member 56.

  In addition, since the folding | returning part 54 is provided in the lower end part of the closing member 52, the intensity | strength of the lower end part of the closing member 52 is raised and it is prevented that the lower end part of the closing member 52 is curved, Therefore The sealing property between the seal member 56 and the side surface 30 on the house side of the ventilation device main body 22 is enhanced.

  Further, since the rainwater blocking portion 28 is bent in a substantially U shape toward the inside of the ventilator main body 22, when outside air is taken into the ventilator main body 22 from the plurality of intake openings 26. When the outside air hits against the rainwater blocking portion 28, it is diffused almost in the entire area of the inside of the ventilator main body 22. Therefore, the closing member 52 is pressed with substantially the same wind pressure in the length direction, thereby closing the closing member 52. It can be positioned reliably in the position. Further, for example, when the wind speed is about 50 m / s, rainwater is rebounded and blocked by the rainwater blocking unit 28, and the inflow of rainwater into the ventilation device main body 22 can be suppressed. Further, since the rainwater blocking portion 28 protrudes about 2.6 mm toward the inside of the ventilator main body 22, the width D (see FIG. 3) of the intake opening 26 is about 2.6 mm. Are prevented from entering the attic space 14 through the air intake opening 26 and the formation of beehives or the like in the attic space 14 is prevented.

  Therefore, in the ventilation structure of the house 2 using the ventilation device 6 of the present embodiment, rainwater can be reliably prevented from entering the attic space 14 of the house 2 through the ventilation opening 32, and rainwater can be prevented from entering the attic space. It is possible to prevent the occurrence of mold, corrosion, dew condensation, etc. due to intrusion 14 and maintain a good living environment. In addition, the outside air can be efficiently introduced into the attic space 14, whereby the temperature of the attic space 14 can be efficiently lowered by the outside air introduced into the attic space 14, and the house 2 is increased by the increase in the temperature of the attic space 14. It is possible to prevent the inside temperature from becoming high.

  In addition to the conventional ventilation structure of the house 2, for example, a ventilation structure for introducing outside air into the attic space 14 from a building ventilation, an effective plate of the eaves ceiling, a goat, a ventilation part, an outer wall ventilation layer (not shown), By adopting the ventilation structure of the house 2 using the ventilation device 6 of this embodiment, the attic space 14 can be ventilated more effectively.

[Second Embodiment]
Next, with reference to FIG. 5, 2nd Embodiment of a ventilation apparatus and the ventilation structure of a house using the same is demonstrated. FIG. 5 is a schematic cross-sectional view showing a ventilation device according to a second embodiment of the present invention. In the following embodiments, the same components as those of the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  In the ventilation device 6A according to the second embodiment, a reinforcing plate member 66 is detachably attached to the mounting portion 44. A stepped portion 67 formed by being slightly bent upward is provided at an intermediate portion in the width direction (left-right direction in FIG. 5) of the reinforcing plate member 66. The lower end portion of the roof material 64A protrudes from the stepped portion 67 to the outdoor side by a predetermined length (about 10 mm). An insertion portion 68 folded downward is provided at the lower end portion of the reinforcing plate member 66, and the distal end portion of the second draining portion 48 is detachably inserted into the insertion portion 68. Moreover, the 3rd water return part 70 turned up toward the outdoor side is provided in the upper side edge part of the reinforcement plate member 66, This reinforcement plate member 66 is attached to the field board 18, for example. By attaching the tip of the hanger 72 to the third water return portion 70, the suspension 72 is attached to the upper portion of the attachment portion 44.

  When the reinforcing plate member 66 is attached to the mounting portion 44, the mounting portion 44 is covered with the reinforcing plate member 66, whereby the strength of the mounting portion 44 can be increased, and snow falls on the roof material 64 during snowfall. In this case, it is possible to prevent the mounting portion 44, the base plate 18 and the like from being damaged due to the weight of snow. Further, when rainwater or snowmelt water enters the gap between the reinforcing plate member 66 and the roof material 64, the rainwater or snowmelt water is bounced back to the outdoor side by the third water return portion 70, and rainwater. Or snowmelt water can be prevented from entering the gap between the roofing material 64 and the field board 18, and rain leakage of the house 2 can be prevented. In addition, the snow accumulated below the stepped portion 67 of the reinforcing plate member 66 slides on the reinforcing plate member 66 and falls from the insertion portion 68, so that the weight of the snow lowers the mounting portion 44. The side end is prevented from being damaged. In the ventilator of the other embodiment, the same effect as described above is achieved.

  As mentioned above, although various embodiment of the ventilator according to this invention and the ventilation structure of a house using the same was described, this invention is not limited to this embodiment, Various without departing from the scope of the present invention. Deformation or correction is possible.

For example, in the first and second embodiments, the ventilation device main body 22 and the closing member 52 are configured separately, but may be configured integrally.
Further, for example, in each of the above embodiments, the angle θ of the first water return portion 34 with respect to the vertical direction is set to about 53 degrees, but it is preferable to set the angle θ to 50 degrees to 55 degrees. By setting in this way, rainwater is effectively rebounded to the outdoor side by the first water return portion 34, and rainwater can be more reliably prevented from entering the attic space 14 of the house 2 through the ventilation opening 32. Can do.

  In addition, for example, in each of the above-described embodiments, the projection amount of the rainwater blocking section 28 into the ventilation device body 22 is set to about 2.6 mm, but this projection amount is set to 1.0 to 4.0 mm. preferable. With this setting, the width D of the air intake opening 26 becomes about 1.0 to 4.0 mm, so that, for example, a pest such as a bee enters the attic space 14 of the house 2 through the air intake opening 26. It can be surely prevented.

  Further, for example, in the first and second embodiments, the roof material 64 (64A) is configured from tiles (slate), but is not limited thereto, and is configured from various roof materials such as cement tiles and sheet metal roof materials. can do. When the roofing material 64 is made of a sheet metal roofing material, a lower end portion of the sheet metal roof is attached to the second draining portion 48 and an upper end portion thereof is attached to, for example, the field plate 18 (see FIG. The roofing material 64 can be fixed to the base plate 18 by being latched to the tip end portion (not shown).

  Further, for example, in the first and second embodiments described above, the present invention is applied to the single field type roof 8 in which the field board 18 is provided on the upper part of the rafter 16, but the present invention is not limited to this, for example, the upper part of the rafter 16. The present invention can also be applied to a double field type roof in which field plates 18 are respectively provided on the lower side.

  Further, for example, in the first and second embodiments, the attachment portion 44 is attached to the lower end portion of the base plate 18 using the hanging member 50. However, the present invention is not limited to this. For example, the mounting portion 44 may be mounted on the lower end portion of the base plate 18 by using, for example.

  Further, for example, in the first and second embodiments, the ventilator 6 (6A) is configured to be attached to the eaves part 4 of the roof 8 (8A). You may comprise so that it may attach to an eaves part, a curtain part, etc.

  In addition, for example, in the first and second embodiments, the connection member 60 is formed from a soft material such as a rubber material or a resin material. Can be configured.

It is a perspective view which shows the ventilation apparatus by the 1st Embodiment of this invention. It is a schematic sectional drawing which shows the ventilation structure of the house using the ventilation apparatus of FIG. It is a schematic sectional drawing which shows the state by which the obstruction | occlusion member of the ventilation apparatus of FIG. 2 was located in the open position. It is a schematic sectional drawing which shows the state by which the obstruction | occlusion member of the ventilation apparatus of FIG. 2 was located in the obstruction | occlusion position. It is a schematic sectional drawing which shows the ventilation apparatus by the 2nd Embodiment of this invention. It is a schematic sectional drawing which shows the conventional ventilation apparatus.

2 house 4 eaves part 6A Ventilation device 10 Ventilation port 14 Attic space 18 Field 22 Ventilation device body 26 Intake opening 28 Rain water blocking portion 32 Ventilation opening 34 First water return portion 36 First draining portion 38 For drainage Opening portion 44 Mounting portion 46 Second water return portion 48 Second draining portion 52 Closure member 54 Turn-up portion 56 Seal member

Claims (10)

A ventilator for introducing outside air into the attic space of a house for ventilation,
A ventilator body attached to the eaves part of the house; an intake opening provided on the outdoor side of the ventilator body, for sucking outside air into the ventilator body; and a house side of the ventilator body A ventilation opening for communicating the inside of the ventilation device main body with the attic space of the house, a closing member for closing the ventilation opening, and a base plate of the roof of the house And a second drainer for preventing water flowing down the roof of the house from reaching the outdoor side of the ventilator body at the lower end of the mounting portion. Prepared,
The intake opening is opened in the lateral direction, and the closing member has one end inserted into and crimped to the inside of the second draining portion, and the other end of the support through the connecting member. The vent opening is configured to be swingable between a closed position for closing the vent opening and an open position for opening the vent opening. Is provided with a first water return portion extending obliquely downward toward the outdoor side,
When the wind is weak, the closing member is positioned in the open position, and the outside air sucked into the ventilation device main body through the intake opening is introduced into the attic space of the house through the ventilation opening, Further, the ventilator is characterized in that the closing member is positioned from the open position to the closed position by outside air sucked into the ventilator main body through the intake opening during a strong wind.   The ventilation device according to claim 1, wherein the first water return portion extends obliquely downward toward the outdoor side at an angle of 45 to 60 degrees with respect to the vertical direction.   A sealing member is provided at a lower end portion of the closing member, and when the closing member is positioned at the closing position, the sealing member is located on the house side of the ventilation device main body below the first water return portion. The ventilation apparatus according to claim 1 or 2, wherein the ventilation apparatus is sealed.   The ventilator according to claim 3, wherein a folding portion that is folded in a predetermined direction is provided at a lower end portion of the closing member, and the sealing member is attached to the folding portion.   The lower end portion on the outdoor side of the ventilator main body is provided with a first draining portion for preventing water flowing down the outdoor side of the ventilator main body from reaching the outer wall surface of the house. The ventilator according to any one of claims 1 to 4.   The drainage opening is provided in the first draining part, and rainwater collected inside the ventilator main body is discharged to the outside through the drainage opening. The ventilation device described.   The ventilation apparatus according to any one of claims 1 to 6, wherein a second water return portion that is folded upward toward the outdoor side is provided at an upper end portion of the mounting portion.   A plurality of the intake openings are provided, and each of the plurality of intake openings is provided with a rainwater blocking part formed by punching, and the rainwater blocking part is provided inside the ventilator body. The ventilator according to any one of claims 1 to 7, wherein the ventilator is bent in a substantially U shape.   The ventilator according to claim 8, wherein the rainwater blocking portion protrudes 1.0 to 4.0 mm toward the inside of the ventilator main body. A ventilation device provided at an eaves portion of a house, and a ventilation unit communicating with the attic space of the house, and outside air sucked by the ventilation device is exhausted from the ventilation unit through the attic space A ventilation structure,
The ventilator includes a ventilator main body attached to an eaves part of the house, an intake opening provided on the outdoor side of the ventilator main body, for taking outside air into the ventilator main body, and the ventilation A ventilation opening provided on the house side of the apparatus main body for communicating the inside of the ventilation apparatus main body with the attic space of the house; a closing member for closing the ventilation opening; and the house And a lower end portion of the mounting portion for preventing water flowing down the roof of the house from reaching the outdoor side of the ventilator body. With two drainers,
The intake opening is opened in the lateral direction, and the closing member has one end inserted into and crimped to the inside of the second draining portion, and the other end of the support through the connecting member. The vent opening is configured to be swingable between a closed position for closing the vent opening and an open position for opening the vent opening. Is provided with a first water return portion extending obliquely downward toward the outdoor side,
When the wind is weak, the closing member is positioned in the open position, and the outside air sucked into the ventilation device main body through the intake opening is introduced into the attic space of the house through the ventilation opening, Further, the house ventilation structure is characterized in that when the wind is strong, the closing member is positioned from the open position to the closed position by outside air sucked into the ventilation apparatus main body through the intake opening.

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