JP4809693B2 - Ventilation device, method for attaching ventilation device, and method for ventilating indoor space - Google Patents

Description

  The present invention relates to a ventilator attached to a wall surface of a building, a method for attaching the ventilator, and a ventilating method for an indoor space. The present invention also relates to a method for attaching the same and a method for ventilating an indoor space using the ventilator.

  2. Description of the Related Art Conventionally, various ventilation devices and ventilation members have been used in order to ventilate an outdoor space and an indoor space that are attached to an outer wall surface of a building and communicate with each other. For example, the eaves back ventilation member 1 shown in FIG. 5 is a hardware installed in a line in the gap between the outer wall material and the eaves ceiling material, and a number of ventilation holes are formed in the hardware. By providing a vent hole in the joint between the eaves and the outer wall with such hardware, it is possible to ventilate the back of the hut and the back of the ceiling. Further, the wall-mounted ventilation device 2 shown in FIG. 6 is configured by connecting a duct to an opening provided in an outer wall material and attaching a hood-like ventilation member such as a round shape or a hemispherical shape to the end of the duct. ing.

However, the eaves back ventilation member 1 in FIG. 5 is limited to the gap between the outer wall material and the eaves ceiling material. Therefore, it cannot be attached to a wall surface other than the eaves side of the wife side wall or the single-flow roof, and cannot be ventilated from a wall surface other than the eaves side of the wife side wall or the single-flow roof. Moreover, there was a problem that it could not be attached to a flat roof building.
Moreover, although the wall-mounted type ventilation apparatus 2 of FIG. 6 can be installed other than under the eaves, a duct work is required to attach a ventilation member to the end of the duct, and there is a problem that installation takes time. In addition, in order to increase the ventilation amount, a large number of conspicuous ventilation members such as a round shape or a hemispherical shape must be attached to the wall surface, which causes a problem that the appearance design of the building is deteriorated.

In view of this, a configuration has been proposed in which a gavel provided in the upper part of the window is formed in a hollow shape, and the interior space of the gavel is used as a ventilation space (for example, see Patent Document 1).
The gavel of Patent Document 1 is provided with a hollow inner protrusion so as to pass through the gap between the sash frame and the outer wall, and a hollow gavel is connected to the outdoor side of this inner protrusion, A ventilation gallery is provided. Therefore, it is possible to secure a large amount of ventilation with a ventilation opening of the same width as the sash width, and since the ventilation member is also used as a small fence, it is necessary to install a large number of conspicuous ventilation members such as hemispheres side by side There is no. Accordingly, the appearance design of the building is not deteriorated.

JP-A-10-72921

  However, since the installation position of the gavel having the ventilation function of Patent Document 1 is limited to the upper part of the window, it cannot be used on a wall surface without a window. In addition, since the opening position on the indoor side is the upper end height of the window, if the upper end height of the window is low, the opening position on the indoor side is away from the shed space. Further, since the ventilation space is provided substantially horizontally along the upper surface of the sash frame, there is a problem that rainwater or the like easily enters inside.

  The present invention has been made in view of the above problems, and its purpose is a shape that can be attached to any position on the wall surface of the building with any size and does not deteriorate the appearance design of the building. Another object of the present invention is to provide a ventilator capable of preventing rainwater intrusion during a storm, a method for attaching the ventilator, and a method for ventilating an indoor space using the ventilator.

  According to the present invention, in the ventilator attached to the wall surface opening of the building, the vertical ventilation portion having an internal space disposed in the wall of the building and capable of venting in the vertical direction is formed so as to penetrate the wall surface opening. And a lateral ventilation portion having an internal space with one end communicating with the lower end of the vertical ventilation portion and the other end communicating with the outdoors, and an outdoor from the wall surface opening of the lateral ventilation portion A cover member attached to the protruding portion, and the outdoor protruding portion of the horizontal ventilation portion is a cylindrical body having a horizontally long rectangular cross section that can be inserted into a substantially horizontal horizontally long straight wall surface opening. The material is formed to have a U-shaped cross-sectional portion in which the upper surface and the side surface of the cylindrical body are inscribed, and a front end surface that closes one end side of the U-shaped cross-sectional portion, and the front end surface is It is a horizontally long straight shape corresponding to the cross-sectional shape of the ventilation portion, and the tip And the lower end face, the predetermined vent opening is solved by being mounted at such a position that is formed between the lower surface of the distal end of the tubular body.

Thus, since the ventilation apparatus of this invention is attached to the wall surface opening of a building, the attachment position is not limited to the eaves top part, the upper part of a window, etc., It can be attached to a desired position.
The ventilator is a cylindrical body having a horizontally long rectangular cross section in which an outdoor projecting portion can be inserted through a horizontally long straight linear wall opening. And the front end surface of the cover material attached to this cylindrical body is made into the horizontally long linear shape corresponding to the cross-sectional shape of this cylindrical body. Thus, in the present invention, the outdoor projecting portion of the ventilator is thin and has a horizontally long linear shape, and therefore it is difficult to recognize it as a ventilator from its appearance. Therefore, even if it is exposed and installed on the outer wall surface, there is no sense of incongruity and it does not stand out, so the appearance design of the building is not deteriorated.
Moreover, since it is horizontally long and thin and thin, the installation position and installation width can be appropriately changed according to the building shape. In addition, the ventilation area can be adjusted by changing the installation width.

  Moreover, in this invention, a clearance gap is set between the lower end of a cover material, and the front-end | tip of the cylindrical body which comprises a horizontal ventilation part, and this clearance gap is the ventilation opening which faced below. In this way, if the ventilation opening faces downward, it is difficult for rain to blow during rain, and the waterproofness is improved.

Moreover, in this invention, the opening provided in the upper end of the said vertical ventilation part can be formed so that the duct connected to the predetermined indoor space can be connected.
In this way, if the opening provided at the upper end of the vertical ventilation portion is communicated with the indoor space to be ventilated through the duct, the degree of freedom in setting the installation height position of the ventilation device can be increased. Therefore, the external design of the building can be improved.

Further, according to the present invention, the subject is a method for mounting a ventilator according to claim 1 or claim 2, wherein the mounting method is a horizontally long linear installation on an outer wall finishing material attached to a wall surface of a building. Forming an opening; arranging and fixing the vertical ventilation portion in a wall of the building at a position where an opening at an upper end thereof can communicate with a shed space of the building; and The problem is solved by performing a step of attaching the outer wall finishing material through the ventilation portion and a step of attaching and fixing the cover material to the lateral ventilation portion.
As described above, in the present invention, the ventilator is attached by inserting the lateral ventilation portion, which is an outdoor projecting portion, through the wall surface opening of the building, and the vertical ventilation portion is disposed in the wall. Therefore, since the connection between the ventilator and the part other than the outer wall does not occur, the construction is facilitated and the configuration is simplified.

In addition, according to the present invention, there is provided a ventilation method for an indoor space by the ventilator according to claim 1 or 2, wherein the outside air that has flowed from the ventilation opening is passed through the interior of the vertical ventilation section. The problem is solved by raising the space from the bottom to the top by a predetermined distance and then flowing from the upper end of the vertical ventilation section into a predetermined indoor space or a duct communicating with the indoor space.
In this way, by introducing outside air from the vent opening facing downward and carrying the air from below to above a certain distance, an effect of preventing intrusion of water droplets or the like can be achieved.
In addition, the ventilation space in the vertical direction is formed in this way, and if necessary, the duct is used to ventilate the desired indoor space (for example, the shed space), thereby installing the vent box S on the wall surface of the opening. The degree of freedom in setting the height position is increased. Thereby, the external appearance design property of a building can be improved.

The present invention has the following effects.
-Since the ventilation apparatus of this invention is attached to the wall surface opening of a building, the attachment position is not limited to the eaves top part, the upper part of a window, etc., It can be attached to a desired position.
○ The ventilator of the present invention has an outdoor projecting portion that is horizontally long and thin, and is difficult to recognize as a ventilator because of its appearance. Therefore, even if it is exposed and installed on the outer wall surface, there is no sense of incongruity and it does not stand out, so the appearance design of the building is not deteriorated.
O Since it is horizontally long, thin and thin, it can be used by appropriately changing the installation position and installation width according to the building shape. In addition, the ventilation area can be adjusted by changing the installation width.
○ A ventilation space in the vertical direction is formed, and if necessary, the installation height position on the wall surface of the building is set by ventilating the desired indoor space (for example, the space behind the hut) using a duct. The degree of freedom is increased. Therefore, the external design of the building can be improved.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings. It should be noted that members, arrangements, and the like described below do not limit the present invention, and it goes without saying that various modifications can be made in accordance with the spirit of the present invention.
1 to 4 show an embodiment of a ventilator according to the present invention. FIG. 1 is a perspective view of a building in which the ventilator is installed, and FIG. 2 is a longitudinal sectional view when the ventilator is installed in the building. 3 is a transverse cross-sectional view when the ventilator is installed in a building (A-A cross-sectional view of FIG. 1), and FIG. 4 is an exploded cross-sectional perspective view of the ventilator vertically cut at the center.
FIG. 5 is a cross-sectional view of a conventional ventilation device, and FIG. 6 is a front view of the conventional ventilation device.

(Configuration of vent box S)
An embodiment in which the ventilator of the present invention is applied to a vent box S for ventilating a shed of a building will be described. As shown in FIG. 1, the vent box S of this example is attached to a horizontally long slit-shaped opening formed at a predetermined position on the outer wall G of the building H, and the portion exposed to the outside of the building H is thin. It has a horizontally long rectangular parallelepiped shape. Therefore, the external appearance when attached to the building H is a horizontal straight line, is not easily recognized as a ventilation member, and even if it is exposed and installed on the outer wall surface, there is no sense of incongruity and it does not stand out. That is, it is formed in a shape that does not deteriorate the appearance design of the building H.

Since the vent box S of this example is thin and linear, the installation position and installation width can be appropriately changed according to the building shape. Moreover, the ventilation area can be adjusted appropriately by changing the installation width, and the ventilation volume can be adjusted.
In addition, in this example, each part is set so that the width of the vent box S and the opening width dimension of the outer wall G to which the vent box S is attached can be appropriately set in a predetermined dimension unit such as a module dimension unit or a module dimension of the building H. If configured, parts and fit can be standardized. As a result, on-site processing can be reduced, and the construction labor can be reduced.
In addition, such a thin and horizontally long rectangular parallelepiped shape is a shape that can be used as a gavel. That is, by providing the vent box S of this example, for example, immediately above the window, it can be used as a ventilator that also serves as a small fence.

  As shown in FIGS. 2 to 4, the vent box S of this example has a substantially vertical cross section by connecting the end portion of the horizontal cylindrical body 12 to the side surface of the lower end portion of the vertical cylindrical body 11. The body 10 formed to be L-shaped, the cover member 20 that covers the distal end portion of the horizontal cylindrical body 12 projecting from the outside, and the inner space of the vertical cylindrical body 11 are rotated. It attaches to the clearance gap between the water stop feather 30 attached so that it can move, the flame-proof mechanism 40 attached to the internal space of the horizontal cylinder 12, and the lower end part of the cover material 20, and the horizontal cylinder 12. The insect repellent net 50 is a main component. In this example, these members are formed of stainless steel, aluminum, various metals subjected to rust prevention treatment, or the like.

The outer wall G to which the vent box S of this example is attached includes a structural material G1 such as a wooden cross or a pillar constituting the outer wall frame material, a plywood G2 pasted on the outdoor side of the structural material G1, and an outdoor side of the plywood G2. A vertical trunk edge G3 to be attached and an outer wall surface material G4 attached to the outdoor side of the vertical trunk edge G3 are provided. A structural material G5 such as an eaves girder or a beam is provided on the indoor side of the structural material G1. Further, a heat insulating material such as glass wool is appropriately disposed between the structural material G1 and the structural material G1 or the structural material G5, but this prevents the air permeability between the wall and the shed space from being hindered. ing.
In this example, a horizontally long slit-shaped opening is formed so as to penetrate the outer wall surface material G4, the vertical trunk edge G3, and the plywood G2, but this opening communicates with the space between the structural materials G1, It communicates with the back space of the building H above the structural material G5 such as eaves beams and beams.

The main body 10 includes a vertically-oriented cylindrical body 11 having a wide and thin rectangular cross section, a laterally-shaped cylindrical body 12 having a wide and thin rectangular section, and the cylindrical body 11 and the surface of the cylindrical body 12. And an extending piece 13 formed to extend in four directions so as to form substantially the same plane as the surface including the side surface 11a from the position including the side surface 11a on the outdoor side of the cylindrical body 11. Is formed.
The cylindrical body 11 is disposed in a space between the structural members G1, and is formed to have a predetermined vertical length. The side surface 11a of the tubular body 11 is formed with a horizontally long slit-shaped attachment opening substantially the same as the cross-sectional shape of the tubular body 12 at the lower end thereof, and one end side of the tubular body 12 is formed in this attachment opening. It is connected. Moreover, the other end side of the cylindrical body 12 is extended to the outdoor side rather than the outer wall surface material G4 through the attachment opening of the outer wall surface material G4, the vertical trunk edge G3, and the plywood G2.

  The main body 10 is fixedly supported by the structural material G1 by bringing the extending piece 13 into contact with the structural material G1 or the base frame G1a fixedly supported between the structural materials G1 and joining them with nails, screws, or the like. Yes. Therefore, the structural material G1 or the ground beam G1a is provided at a position where the extending piece 13 reaches around the horizontally long slit-shaped opening for attaching the vent box S. When the base beam G1a is provided, the position of the outdoor side surface is set on the same plane as the outdoor side surface of the structural material G1. Thereby, the outdoor protrusion dimension of the cylindrical body 12 can be made substantially the same as when it is attached to the structural material G1.

  Further, the plywood G2 is in contact with the fixed extending piece 13 and the side surface 11a. That is, in this example, the extending piece 13 is configured to be sandwiched between the plywood G2 and the structural material G1 or the base bar G1a. Then, a double-sided waterproof tape 14 as a secondary waterproofing member is continuously pasted on the outdoor side surface of the extension piece 13 in order to prevent rainwater and the like from entering through the gap between the vent box S and other members. Established. In this example, the gap between the extending piece 13 and the plywood G2 is closed by the double-sided waterproof tape 14, so that rainwater or the like can enter the space on the structural material G1 side from the opening formed in the plywood G2. It is preventing. In addition, sealing as a primary water stop member is given to the gap between the mounting opening formed in the outer wall surface material G4 and the cylindrical body 12.

The upper end of the cylindrical body 11 is an opening, and the upper end on the indoor side is cut so that the upper end position of the indoor side surface 11b is lower than the upper end position of the outdoor side surface 11a. Thereby, the cylindrical body 11 will open toward an upward direction and an indoor direction. Therefore, the internal space of the cylindrical body 11 and the main body 10 communicates with the shed space of the building H via the space between the structural materials G1 or the upper space of the structural material G5 such as eaves and beams. .
In this example, the main body 10 is attached at a height position such that the opening position of the upper end of the cylindrical body 11 is above the structural material G5 such as an eaves beam or a beam. As a result, the cabin space and the internal space of the main body 10 are directly communicated with each other, and the cabin space can be efficiently ventilated. In addition, when the opening position of the upper end of the cylindrical body 11 and the distance from the hut space are separated, one end of a duct is connected to the upper end of the cylindrical body 11, and the shed space is connected via the duct. The vent space in the vent box S may be communicated.

Inside the cylindrical body 11, a waterstop 30 described later is attached to the substantial center thereof so as to be rotatable about a substantially horizontal axis. Specifically, both ends of the rotating shaft of the waterstop blade 30 are pivoted at substantially the center of the substantially parallel side surfaces 11c and 11d that connect the both ends of the side surface 11a and the side surface 11b to form the cylindrical body 11 having a square cross section. It is worn.
A thin plate-like stopper piece 15 is attached to the inside of the cylindrical body 11 in a band shape at a position where the tip of the waterstop 30 abuts when the waterstop 30 rotates. The stopper piece 15 is made of a cushioning material such as a rubber piece. If it does in this way, the tip can be elastically supported at the time of rotation of water stop feather 30.

  The cylindrical body 12 is connected to the side surface of the lower end portion of the cylindrical body 11 as described above, and is formed so that the outdoor-side tip is directed slightly downward. The cylindrical body 12 includes a wide upper surface 12a positioned above, a lower side surface 12b formed substantially parallel to the upper side surface 12a and positioned below the upper side surface 12a, and both ends of the upper side surface 12a and the lower side surface 12b. Each of the substantially parallel side surfaces 12c and 12d connected to each other is formed so as to form a thin and wide square cross section, and the outdoor side tip protrudes from the surface of the outer wall surface material G4 to the outdoor side by a predetermined dimension. Further, a flap 12e that is bent downward and extends with a very short length is formed at the tip of the lower side surface 12b.

  The cover member 20 has a shape in which the end of the tubular body having a cross-sectional shape in which the tubular body 12 is just inscribed is closed and the surface that contacts the lower side surface 12b is cut. That is, the cover member 20 includes an upper side surface 21 that contacts the outside of the upper side surface 12a, side surfaces 22 and 23 that are connected substantially perpendicularly to the left and right sides of the upper side surface 21, and abut on the outer side of the side surfaces 12c and 12d. And a front end surface 24 connected substantially perpendicularly to the front ends of the side surfaces 22 and 23, and a lower side surface 25 formed to extend from the lower end side of the front end surface 24 toward the outer wall surface material G4 with a short length. Is formed.

With such a shape, the cover member 20 can be attached to or detached from the tip of the cylindrical body 12 from above, and is removable. Further, the cover member 20 is attached to the cylindrical body 12 so that the shape of the front view seen from the front of the outer wall G is a thin and horizontally long rectangular parallelepiped shape.
Further, in a state where the cover member 20 is attached, a gap having a predetermined width is formed between the lower side surface 25 of the cover member 20 and the distal end portion of the lower side surface 12b of the cylindrical body 12, that is, the flap 12e. Therefore, outside air can be introduced into the inside of the cylindrical body 12 through this gap, and then introduced into the shed space side through the ventilation path passing through the cylindrical body 11 from the cylindrical body 12 for ventilation.

Thus, in this example, a vent opening (external air flow inlet) that connects the outdoor and the vent space in the vent box S is formed on the lower end surface of the outdoor projecting portion of the vent box S. Further, as described above, the vent box S has a vent opening (the upper end of the cylindrical body 11) that communicates with the vent space in the vent box S and the back of the shed and the wall. Are formed). Therefore, inflow air from the outside is moved from the bottom to the top in the ventilation space. Moreover, in this example, since the ventilation opening faces downward, it is difficult for rain to blow during rain, and the waterproofness is improved.
And in this example, the insect net 50 is attached to the clearance gap between the lower surface 25 of the cover material 20, and the flap 12e of the cylindrical body 12. FIG. Accordingly, it is possible to prevent dust and insects from entering the ventilation space.

  The waterstop 30 is a substantially rectangular plate-like member that can rotate around a rotation axis that is substantially parallel to the side surfaces 11 a and 11 b of the cylindrical body 11. The rotating shaft of the waterstop 30 is at an intermediate position between the side surfaces 11a and 11b. The central part of 30 short sides is pivotally attached. The long side length of the still water wing 30, that is, the length in the rotation axis direction is substantially the same as the internal dimension of the cylindrical body 11 in the width direction of the side surfaces 11 a and 11 b. Moreover, the short side length of the still water wing 30, that is, the length in the direction perpendicular to the rotation axis, is larger than the inner dimension of the cylindrical body 11 in the width direction of the side surfaces 11 c and 11 d.

  The stationary water wing 30 is oriented vertically with the end on the long side facing up and down as shown by the solid line in FIG. 2 when there is no wind. In this state, when the external air that has flowed into the cylindrical body 11 rises from the bottom to the top as shown by the arrow X in FIG. 2, the lower blade surface receives the flow of the rising air, and the wind pressure of the rising air If the value exceeds a certain value, the waterstop 30 is rotated. Further, when the outflow air from the back of the shed descends from the top to the bottom, the upper blade surface receives the flow of the descending air, and if the wind pressure of the descending air exceeds a certain level, the waterstop feather 30 is rotated.

  That is, the waterstop 30 is rotated when the wind pressure of the airflow passing through the cylindrical body 11 in the vertical direction becomes a predetermined value or more. Since the length in the direction perpendicular to the rotation axis is larger than the internal dimension of the cylindrical body 11, as shown by the dotted line in FIG. 2, the end on the long side hits the side surfaces 11a and 11b and rotates. Stops. As described above, a thin plate-like stopper piece 15 attached in a strip shape is provided inside the cylindrical body 11 at a position where the tip of the waterstop 30 hits. And the small substantially C-shaped cross-section part is formed in the edge part of the long side of the still water feather 30. FIG. Therefore, the impact that the end portion of the waterstop 30 rotates and vibrates is buffered by the stopper piece 15 and the impact is received on the outer peripheral surface of the substantially C-shaped cross section. The corners of the substantially C-shaped cross section collide with 15 elastically, and the stopper piece 15 and the end of the waterstop 30 are brought into close contact with each other.

  As described above, in this example, the waterstop 30 is rotated by the air flow and its tip is brought into close contact with the stopper piece 15, thereby closing the ventilation path in the cylindrical body 11 and blocking the air flow. The In other words, when wind and rain begin to enter the cylindrical body 11 from the tubular body 12 communicated outdoors, the waterstop 30 is rotated by the wind pressure to close the ventilation path and prevent subsequent wind and rain intrusion. can do. In the vent box S of this example, as a result of the confirmation test conducted by the applicant of the present application, it was confirmed that the waterstop 30 rotated at a wind speed of 7 to 15 m / s to close the ventilation path.

  Moreover, in this example, although the inflow of the rainwater which blows into a cylinder body from the bottom to the top with an air flow is also interrupted | blocked by the water stop feather 30 with a storm, the interruption | blocking of the inflow of rain water by such a water stop feather 30 The effect depends on the height of the ventilation space where rainwater blows up from the bottom and the installation height of the waterstop 30. That is, in the configuration of this example, by forming a ventilation space in which air flows from the bottom to the top inside the vent box S, the rainwater intrusion prevention effect during ventilation is improved. Specifically, the height of the ventilation space in which the waterstop 30 is installed, that is, the vertical length of the cylindrical body 11 is about 130 mm, and the center of rotation of the waterstop 30 is near its center. Has been.

  In such a dimension setting, a confirmation test of the rainwater intrusion blocking effect was performed by a test reproducing a stormy state such as a local wind test. As a result, in the local wind and rain test, it was confirmed that there was no intrusion of rainwater from the upper part of the tubular body 11 into the shed space side in a storm with a wind speed of 20 to 25 m / s. Also, in other tests, it was confirmed that there was no rainwater intrusion into the shed space side in a test that reproduced a storm with a wind speed of 35 m / s. Thus, in the configuration of the vent box S of the present example, it is possible to satisfactorily prevent rainwater from entering during a storm such as a typhoon.

  The flameproof mechanism 40 is provided on a closing plate 41 that is rotatably supported at one end on the front end surface 24 of the cover member 20, and a rotating shaft of the closing plate 41. 12 is provided with a biasing member 42 such as a spring that biases the lower surface 12b of the twelve side, and a fuse member 43 that temporarily fixes the free end of the closing plate 41 to the upper side surface 12a of the cylindrical body 12.

  With such a configuration, the flameproof mechanism 40 is configured so that the closing plate 41 contacts the lower side surface 12b of the cylindrical body 12 in the event of a fire by the fuse member 43 being cut by the hot air during the fire or the high heat of the flame. It is rotated. And the ventilation opening, ie, the clearance gap between the lower surface 25 of the cover material 20, and the flap 12e of the cylindrical body 12 can be forcibly closed by the rotated closing plate 41. Thereby, at the time of a fire, it can prevent that a fire penetrate | invades indoors through the ventilation space in the vent box S from an external airflow inlet_port | entrance.

Further, in a place where the flameproof mechanism 40 is unnecessary, the flameproof mechanism 40 may be omitted from the vent box S. In this example, since the cover member 20 is detachable, the flameproof mechanism 40 can be easily detached and retrofitted.
In addition, the cylindrical part 11 of this example is equivalent to the vertical ventilation part of this invention, the cylindrical part 12 of this example is equivalent to the horizontal ventilation part of this invention, the upper side surface 21, the side surface 22, and the side surface 23 of this example. Corresponds to the U-shaped cross section of the present invention, and the gap between the lower surface 25 of this example and the flap 12e corresponds to the vent opening of the present invention.

(Construction method for bent box S)
Next, the construction method of the outer wall G to which the vent box S having the above-described configurations is attached will be described. The construction of the outer wall G to which the bent box S is attached is carried out in the factory when the outer wall G part is assembled in the factory outer wall panel production line and brought into the construction site, and the outer wall G is assembled in the construction site. In some cases this is done on site.

(1) First, a long and narrow mounting opening of substantially the same shape for mounting the vent box S is formed at a predetermined position of the outer wall surface material G4 and the plywood G2 constructed as a base thereof. Moreover, about the vertical trunk edge G3 constructed | assembled between the outer wall surface material G4 and the plywood G2, the process which cuts a member is performed so that it may not be constructed in this attachment opening part.

(2) Next, the main body 10 having the waterstops 30 already mounted therein is positioned at a position corresponding to the mounting opening between the structural members G1 assembled into the outer wall frame shape, and the extending piece 13 Is piled on the outdoor side surface of the structural material G1 and fixed with a nail or a screw. In addition, when the structural material G1 to be fixed at the position of the extending piece 13 is not provided, a base member G1a is appropriately attached to the structural material G1, and a base member for fixing the extending piece 13 is secured. To do.

(3) Next, the double-sided waterproof tape 14 is applied to the outdoor side surface of the fixed extended piece 13. And while positioning the plywood G2 so that the cylindrical body 12 of the main-body part 10 may be inserted in the attachment opening, the double-sided waterproof tape 14 as a secondary waterproofing member is extended to the extension piece 13 and the cylindrical body 11. Through. Then, the plywood G2 is fixed to the structural material G1 with nails, screws or the like. It should be noted that a waterproof material such as waterproof paper may be applied to the indoor side of the plywood G2 at a site other than the site where the main body 10 is attached. Further, when the double-sided waterproof tape 14 is constructed so as to straddle the boundary between the extended piece 13 and the structural material G1 or the ground beam G1a, water from the gap between the extended piece 13 and the structural material G1 or the ground beam G1a is used. Since the intrusion can be prevented, it is still effective.

(4) Next, on the outdoor side surface of the plywood G2, a vertical trunk edge G3 is constructed avoiding the position of the mounting opening. Then, the outer wall surface material G4 is positioned and fixed to the vertical trunk edge G3 so that the cylindrical body 12 of the main body 10 is inserted through the mounting opening. Thereafter, a backup material is inserted into the gaps between the outer wall surface material G4, the vertical trunk edge G3, and the outer peripheral surface of the cylindrical body 12, and a sealing material as a primary water stop member is applied to the outside thereof.

(5) Next, the cover member 20 is placed on the distal end portion of the cylindrical body 12 protruding to the outdoor side from the mounting opening of the outer wall surface material G4, and positioned and fixed. The fixing method can be performed, for example, by engaging screws or metal pieces. In addition, if the protrusion which contact | abuts the front-end | tip part of the cylindrical body 12 is provided in the inner surface of the cover material 20, the positioning of the cover material 20 can be performed more easily.
Since the cover member 20 is detachable, the flameproof mechanism 40 can be removed or the flameproof mechanism 40 can be retrofitted even after being attached once.

(Ventilation method for indoor space)
Then, the ventilation method of the indoor space (for example, hut space) of the building performed by installing the vent box S by each said structure is demonstrated.
(1) In this example, the ventilation opening (external airflow inlet) is provided facing the lower end surface of the outdoor protrusion of the vent box S downward. Therefore, when outside air is introduced into the vent box S from the ventilation opening, an air flow is generated from the bottom to the top as indicated by an arrow X in FIG. 2 at the ventilation opening (external airflow inlet).
(2) The outside air flowing in from the ventilation opening (external air flow inlet) passes through the cylindrical body 12 substantially horizontally toward the indoor side, and then passes through the cylindrical body 11 and then flows from the bottom to the top again. It becomes.
(3) The outside air that has flowed out of the vent box S from the upper end of the cylindrical body 11 directly flows into the wall space or the shed space close to the shed space. Or, it flows into the cabin space through a duct connected to the upper end of the cylindrical body 11. The air flow at this time is the inflow direction from the outdoor side to the indoor side or the inflow direction from the bottom to the top.

As described above, in the vent box S of the present example, outside air is introduced from the ventilation opening facing downward, and is carried from the bottom to the top by a certain distance or more. Therefore, when introduced into the ventilation space, an effect of preventing intrusion of water droplets or the like is first achieved, and further, an effect of preventing intrusion of water droplets or the like is further achieved by transporting the route transported from below to above by a certain length or more.
In addition, the ventilation space in the vertical direction is formed in this way, and if necessary, the duct is used to ventilate the desired indoor space (for example, the shed space), thereby installing the vent box S on the wall surface of the opening. The degree of freedom in setting the height position is increased. Thereby, the external appearance design property of a building can be improved.

It is a perspective view of the building where the ventilator of this embodiment was installed. It is a longitudinal cross-sectional view when the ventilation apparatus of this embodiment is installed in the building. It is a cross-sectional view when the ventilation apparatus of this embodiment is installed in a building. It is a section exploded perspective view of the ventilator of this embodiment. It is sectional drawing of the ventilator of a prior art example. It is a front view of the ventilator of a prior art example.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Eave back ventilation member 2 ... Ventilation apparatus 10 ... Main-body part 11 ... Cylindrical body 11a, 11b, 11c, 11d ... Side surface 12 ... Cylindrical body 12a ... Upper side surface 12b ... Lower side surface 12c, 12d · Side surface 12e · Flap 13 · · · Extension piece 14 · · · Double-sided waterproof tape 15 · · · Stopper piece 20 · · · Cover material 21 · · · Upper side surface 22 · · · Side surface 23 · · · Side surface 24 · · · End surface 25 · · · Bottom Side surface 30 ······························································································ Closed Plate 42 ··· Biasing Member 43 ··· Fuse Member 50 ··· Insect Screen G · · · Outer Wall G1 Plywood G3 Vertical body edge G4 Outer wall material G5 Structural material H Building S Vent box

Claims (4)

In the ventilation device attached to the wall opening of the building,
A vertical ventilation portion having an internal space that is disposed in the wall of the building and has a vertically ventilated interior, and is disposed so as to penetrate the wall surface opening, and has one end communicating with the lower end of the vertical ventilation portion and the other end outdoors. A body portion including a lateral ventilation portion having an internal space communicated with the cover, and a cover member attached to a portion of the lateral ventilation portion that protrudes outdoors from the wall surface opening,
The outdoor projecting portion of the lateral ventilation portion is a tubular body having a laterally long rectangular cross section that can be inserted into a substantially horizontal laterally long linear wall opening,
The cover material is formed to have a U-shaped cross-sectional portion in which the upper surface and the side surface of the cylindrical body are inscribed, and a front end surface that closes one end side of the U-shaped cross-sectional portion, It is a horizontally long linear shape corresponding to the cross-sectional shape of the lateral ventilation portion, and is positioned and attached at a position where a predetermined ventilation opening is formed between the lower end of the distal end surface and the distal end of the lower surface of the cylindrical body. Ventilator characterized by being able to.   The ventilation device according to claim 1, wherein the opening provided at the upper end of the vertical ventilation portion is formed so as to be connectable to a duct communicating with a predetermined indoor space. A method for mounting a ventilator according to claim 1 or 2,
Forming a substantially horizontally long linear attachment opening in the outer wall finishing material attached to the wall of the building;
In the wall of the building, the vertical ventilation portion is disposed and fixed at a position where the opening at the upper end can communicate with the shed space of the building; and
Attaching the outer wall finishing material by passing the lateral ventilation portion through the attachment opening;
And a step of attaching and fixing the cover material to the lateral ventilation portion. A ventilating method for an indoor space by the ventilator according to claim 1 or 2,
After the outside air that has flowed in from the ventilation opening is raised a predetermined distance from the bottom to the top in the internal space of the vertical ventilation portion, it is communicated from the upper end of the vertical ventilation portion to the predetermined indoor space or the indoor space A method for ventilating indoor spaces, characterized by flowing into a duct.

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