JP2019207041A - Ventilation louver and construction method of the same - Google Patents

Abstract

To provide a ventilation louver which prevents entry of birds and small animals in a simple and effective manner and enables improvement of durability, and to provide a construction method of the ventilation louver.SOLUTION: A ventilation louver 10 includes a ventilation louver body 11 and a bird-preventing material 20. The ventilation louver body 11 is formed including: a cylindrical part 12 inserted into a ventilation duct 3; a flange part 13 provided at an outer periphery of the cylindrical part 12 and arranged along an outer surface of an outer wall 2; and a hood part 14 arranged protruding from the outer wall 2 to an outdoor space. The bird-preventing material 20 is formed including: a bird-preventing body 21 having an inclined part 21b which inclines downward from the outer wall 2 side in a direction of the outdoor space; an attachment member 22 detachably attached to an outer periphery of the hood part 14; and a guard member 23 disposed in a gap between the bird-preventing body 21 and the hood part 14. The bird-preventing material 20 is fixed to the attachment part 22 by a lock screw 25 in a manner that an angle of the inclined part 21b can be adjusted.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a ventilation louver installed in a ventilation duct provided on an outer wall of a building and a method for constructing the ventilation louver.

  Conventionally, in order to perform ventilation between the outside of a building and a room, a ventilation gallery installed in a ventilation duct provided on an outer wall is known (for example, see Patent Document 1). This ventilation gallery is also called a vent cap.

  In Patent Document 1, in order to prevent rainwater blown from the top, bottom, left and right from entering the ventilation duct, a top surface rainproof plate in which flat rainproof plates and rain gutter-shaped rainproof plates are arranged in a multi-tiered manner is provided on the front surface. Provided inside the hood at the top inside, provided a bottom rainproof plate with flat rainproof plates arranged in multiple layers on the inside inside the bottom, and provided a side rainproof plate on the outside air opening window opened to the side of the front hood. A ventilation gallery of the configuration is disclosed.

  In such a ventilation gallery, there is a possibility that birds, small animals, insects, etc. may enter the ventilation duct through the gaps between the rainproof plates stacked in multiple stages. Also disclosed is an embodiment in which an insect repellent net is provided.

Japanese Patent No. 4708582

  However, it is difficult to prevent birds and the like from entering the ventilation gallery or staying in the ventilation gallery with the bird protection net and insect proof net as in Patent Document 1, and it is difficult to prevent damage to the ventilation gallery. There is a risk of contamination. In addition, the bird net and the insect net require time and effort for cleaning clogging due to dust, and removal and installation of ventilation louvers for this cleaning.

  Then, this invention aims at providing the construction method of the ventilation louver and ventilation louver which can prevent the penetration | invasion of a bird and a small animal simply and favorably and can improve durability.

  In order to achieve the above object, a ventilation gallery of the present invention comprises a ventilation gallery main body attached to a ventilation duct that communicates the outdoors and indoors of a building, and a bird's proof material attached to the ventilation gallery main body, The ventilation gallery main body is disposed so as to protrude from the outer wall to the outside, a cylindrical portion inserted into the ventilation duct, a flange portion provided on the outer periphery of the cylindrical portion and disposed along the outer surface of the outer wall. A hood portion, and the bird proof material is provided on the outer periphery of the hood portion with a bird proof body having an inclined portion inclined so as to descend from the outer wall side toward the outdoor direction. An attachment member that is detachably attached, and a guard member that is disposed in a gap between the bird-proof body and the hood portion. The bird-proof body is attached to the attachment member by a fixing member, and is inclined. Part Characterized in that it is adjustably secured in degrees.

  The guard member may include a vertical wall that rises vertically so as to close a gap between the bird-proof body and the hood portion, and a fixing piece that is fixed to the mounting member. Furthermore, the gap between the upper end edge of the inclined portion and the outer wall can be 8 mm or less. Moreover, the said bird-proof main body has the back part extended below from the upper end edge of the said inclination part in the said outer wall side, and can make the angle which the said inclination part and the said back part make into an acute angle. The ventilation louver main body may include a cover member that covers the hood portion, and the inclined portion of the bird-proof main body may have a length such that a lower end side protrudes above the cover member.

  Further, the ventilation gallery construction method of the present invention is a ventilation gallery construction method as described above, wherein the tubular portion is inserted into the ventilation duct and the ventilation gallery main body is attached to the outer wall, Loosening the fixing member so that the angle of the inclined portion of the bird-proof material can be adjusted, attaching the attachment member to the outer periphery of the hood portion of the ventilation gallery main body, and the angle of the inclined portion. Adjusting and arranging the lower end side of the inclined portion to protrude above the hood portion, and tightening the fixing member to fix the bird-proof body to the mounting member. And

  In this invention comprised in this way, it can prevent that a bird stays in a ventilation louver with a bird-proof material. Moreover, the guard member provided in the clearance between the bird-proof body and the ventilation gallery main body can prevent birds and small animals from entering the ventilation gallery main body and the ventilation duct from the front and left and right. Therefore, the invasion of birds and small animals can be prevented easily and satisfactorily, and the durability can be improved.

It is a perspective view of the ventilation louver which concerns on embodiment of this application. It is the side view which notched a part of outer wall which attached this ventilation gallery shown in FIG. 1, and the short side direction sectional view of the bird-proof main body of ventilation gallery. It is a perspective view of the bird-proof material shown by FIG. It is the front view and side view of the guard member which are shown by FIG. 3, and the attachment member to which this guard member was fixed.

  Hereinafter, embodiments of the present application will be described with reference to the drawings. As shown in FIGS. 1 and 2, the ventilation gallery 10 of the present embodiment is attached to a ventilation duct 3 provided on the outer wall 2 of the building 1. The ventilation duct 3 communicates the outside (outside) and the inside (indoor) of the building 1 to take in the outside air, and as shown in FIG. 2, the opening 4 opened in the outer wall 2. It is arranged to face. In the present embodiment, the ventilation duct 3 has a rectangular shape when viewed from the front, and the opening 4 is also correspondingly rectangular as viewed from the front. However, the present invention is not limited to this configuration. Alternatively, it may be circular or elliptical when viewed from the front.

  The ventilation gallery 10 includes a ventilation gallery main body 11 attached to the outer wall 2 and a bird-proof material 20 attached to the ventilation gallery main body 11.

  In this specification, the configuration of each member will be described with the outdoor direction being the front and the indoor direction being the rear through the outer wall 2.

  The ventilation gallery main body 11 is provided along the outer surface of the outer wall 2 by being provided in the opening 4 and the cylindrical portion 12 inserted into the ventilation duct 3 and projecting radially on the outer periphery of the cylindrical portion 12. A flange portion 13, a hood portion 14 provided in front of the flange portion 13 and projecting from the outer wall 2 to the outside, a cover member 15 attached to the hood portion 14 and covering the front surface of the hood portion 14, It has.

  In the present embodiment, the cylindrical portion 12 has a rectangular shape in front view, corresponding to the rectangular ventilation duct 3 having a rectangular shape in front view, and the flange portion 13, the hood portion 14, and the cover member 15 have a rectangular shape in front view. It is said. In addition, the shape of these members is not limited to a rectangle, It can be set as a suitable shape according to the shape, function, design, etc. of the ventilation duct 3 or the opening part 4. FIG.

  A plurality of ventilation openings 14 a are opened in the hood portion 14 as indicated by phantom lines in FIG. 4. The ventilation port 14a may be provided with a net or the like for preventing entry of birds and small animals. A pair of engaging projections 14b and 14b for attaching the birdproof material 20 are provided on both sides of the hood portion 14.

  The cover member 15 is a member attached to the front surface of the hood portion 14 in order to prevent wind and rain, small animals and the like from entering the ventilation gallery main body 11. In order to enhance this intrusion prevention effect, the cover member 15 is longer than the hood portion 14 in the vertical and horizontal directions, and is slightly larger in size.

  Further, the cover member 15 is configured by a plurality of plate-like members 15a arranged in a multi-tiered manner at intervals, and a vent hole 15b is provided in the gap between the plate-like members 15a. Further, as shown in FIG. 2, an inclined surface 15 c that is inclined downward from the outer wall 2 side toward the front is provided on the upper surface of the cover member 15. The inclined surface 15 c can cause rainwater to flow down in front of the outer wall 2 and also prevent birds and the like from staying on the cover member 15.

  As shown in FIG. 2 and the like, the bird-proof material 20 includes a bird-proof main body 21 disposed above the hood portion 14 that protrudes outdoors, and an attachment member 22 for attaching the bird-proof main body 21 to the ventilation gallery main body 11. And a guard member 23 fixed to the mounting member 22. The length in the left-right direction of the bird-proofing material 20, the board portion 22 a of the mounting member 22, and the guard member 23 is substantially the same as the length in the left-right direction of the cover member 15.

  The bird-proof body 21 has a shape obtained by bending a plate member into a substantially Λ shape (inverted V shape) when viewed from the side, and an inclined portion 21b that inclines so as to descend forward from the top upper edge 21a, and the inclined portion. A rear portion 21c that is disposed behind the portion 21b and extends downward from the top upper edge 21a. The angle formed between the inclined portion 21b and the back surface portion 21c is an acute angle, and the bird or the like is less likely to stay on the bird-proof body 21.

  A pair of connection pieces 24, 24 are provided on both sides of the bird-proof body 21. The pair of connection pieces 24 and 24 are fixed to both sides of the upper end of the mounting member 22 by fixing screws 25 and 25 as fixing members, respectively, and an unexpected rotational movement due to wind and rain is prevented. In addition, by loosening the fixing screws 25, 25, the bird-proof body 21 can be rotated with respect to the attachment member 22, and the angle of the inclined portion 21b can be freely adjusted.

  Moreover, the damping material 26 is affixed on the lower surface (inner surface) of the inclined part 21b. As this damping material 26, for example, a damping tape or the like in which butyl rubber is bonded to an aluminum foil can be suitably used. In the present embodiment, the damping material 26 is affixed in advance at the time of manufacturing the birdproof material 20, but may be a specification that is affixed to the inclined portion 21b at the time of use. By providing the damping material 26 in this way, it is possible to suppress vibration and vibration sound of the bird-proof body 21 due to wind and rain.

  The attachment member 22 is a frontal portal type, and includes a board part 22a that is disposed above the hood part 14 and extends in the left-right direction, and a pair of attachment pieces 22b and 22b that extend downward from both sides of the board part 22a. I have. As shown in FIG. 4, the pair of mounting pieces 22b and 22b have a pair of fixing portions that have a plate member bent in a concavo-convex shape and sandwich and fix the guard member 23 between the substrate portion 22a. 22c, 22c and a pair of engaging recesses 22d, 22d for engaging a pair of engaging projections 14b, 14b provided on both sides of the hood portion 14 are provided.

  As shown in FIGS. 2 and 4, the guard member 23 has a shape in which a plate-like member is bent in a U-shape in a side view from both ends to a predetermined length and an L-shape in a side view (reverse L-shape) in the center. ing. That is, the guard member 23 includes a vertical wall 23b that rises vertically so as to close the gap between the bird-proof body 21 and the hood portion 14, and an upper fixing piece 23a that extends horizontally from the vertical wall 23b toward the mounting member 22. A pair of lower fixing pieces 23c, 23c extending horizontally from both sides of the lower end of the vertical wall 23b toward the mounting member 22 are configured.

  In addition, the vertical wall 23b is dimensioned and aligned so that the lower end of the vertical wall 23b substantially comes into contact with the upper surface of the hood portion 14 so that there is no interstitial space for entry of small animals or the like. Further, a notch 23d is provided in the center of the vertical wall 23b.

  The upper fixing piece 23a and the pair of lower fixing pieces 23c, 23c of the guard member 23 having such a configuration are inserted between the substrate portion 22a of the mounting member 22 and the pair of fixing portions 22c, 22c. The contact surface between the upper fixed piece 23a and the substrate portion 22a and the contact surface between the lower fixed pieces 23c and 23c and the fixed portions 22c and 22c are connected by welding or the like, so that the guard member 23 is attached to the mounting member. 22 is integrally fixed.

  Hereinafter, the construction procedure of the ventilation louver 10 having the above-described configuration will be described. First, the cylindrical part 12 of the ventilation gallery main body 11 is inserted into the ventilation duct 3 through the opening 4, and the ventilation gallery main body 11 is attached to the ventilation duct 3 of the outer wall 2 as shown in FIGS. A cover member 15 is attached to the front surface of the hood portion 14 of the ventilation louver main body 11. The cover member 15 may be attached later.

  Next, the birdproof material 20 is attached to the ventilation louver main body 11. For this purpose, first, the fixing screws 25 and 25 for fixing the connection pieces 24 and 24 of the bird-proof body 21 and the mounting member 22 are loosened so that the bird-proof body 21 can be rotated and moved in the front-rear direction around the fixing screws 25 and 25. To.

  Next, the pair of attachment pieces 22b, 22b of the attachment member 22 are elastically deformed outward to widen the interval, and are arranged on the outer periphery of the hood portion 14 of the ventilation louver main body 11. Then, while the pair of attachment pieces 22b and 22b are reduced in diameter and restored, the engagement protrusions 14b and 14b of the hood portion 14 are engaged with the engagement recesses 22d and 22d, so that the bird-proof material is attached to the hood portion 14. 20 is attached. At this time, it attaches, adjusting the angle of the bird-proof main body 21 so that the front-end | tip (lower end) of the inclination part 21b may be located above the cover member 15 (outside).

  When the cover member 15 is not attached to the hood portion 14, the cover member 15 is attached to the hood portion 14. At this time, adjustment is made so that the tip of the inclined portion 21 b of the bird-proof body 21 is positioned above the cover member 15.

  Next, the distance D between the top upper edge 21a of the bird-proof main body 21 and the outer wall 2 shown in FIG. 2 is 8 mm or less, and the tip of the inclined portion 21b is disposed so as to protrude above the cover member 15. The angle of the bird-proof body 21 is adjusted. When this angle adjustment is completed, the fixing screws 25 are tightened to fix the bird-proof body 21 to the mounting member 22 so that the bird-proof body 21 does not rotate and move unexpectedly. This completes the attachment of the bird-proof material 20 to the ventilation gallery main body 11, and the gap between the bird-proof main body 21 and the hood portion 14 is closed by the guard member 23, so that birds and small animals can enter the ventilation gallery main body 11. Can be prevented.

Next, the effect of the ventilation louver 10 of this Embodiment is demonstrated. The ventilation gallery 10 of the present embodiment includes a ventilation gallery main body 11 that is attached to the ventilation duct 3 that communicates the outdoors of the building 1 with the indoors, and a bird-proof material 20 that is attached to the ventilation gallery main body 11. The ventilation gallery main body 11 includes a cylindrical portion 12 inserted into the ventilation duct 3, a flange portion 13 provided on the outer periphery of the cylindrical portion 12 and disposed along the outer surface of the outer wall 2, and from the outer wall 2 to the outside. And a hood part 14 disposed so as to protrude. The bird-proof material 20 includes a bird-proof body 21 having an inclined portion 21b that is inclined so as to descend from the outer wall 2 toward the outdoor direction, an attachment member 22 that is detachably attached to the outer periphery of the hood portion 14, and And a guard member 23 disposed in the gap between the bird body 21 and the hood portion 14. The bird-proof body 21 is fixed to the mounting member 22 by a fixing member (for example, a fixing screw 25) so that the angle of the inclined portion 21b can be adjusted.
Therefore, according to the present embodiment, it is possible to prevent the birds and the like from staying in the ventilation louver 10 by the birdproof material 20. In addition, with a simple configuration in which the guard member 23 is simply provided in the gap between the bird-proof body 21 and the ventilation gallery main body 11, birds and small animals enter the ventilation gallery main body 11 and the ventilation duct 3 from the front and left and right. Can be prevented. Therefore, it is possible to provide the ventilation louver 10 that can easily and satisfactorily prevent entry of birds and small animals and improve durability.

  Moreover, the construction method of the ventilation louver 10 according to the present embodiment includes the step of inserting the tubular part 12 into the ventilation duct 3 and attaching the ventilation louver main body 11 to the outer wall 2 and the angle of the inclined part 21b of the birdproof material 20. Adjusting the angle of the inclined portion 21b, the step of loosening the fixing member (for example, the fixing screw 25) so as to be adjustable, the step of attaching the mounting member 22 to the outer periphery of the hood portion 14 of the ventilation louver main body 11, and There are a step of projecting and arranging the lower end side of the inclined portion 21b on the upper surface of the hood portion 14, and a step of fastening the fixing member to fix the bird-proof body 21 to the mounting member 22. Therefore, the ventilation louver 10 that can easily and satisfactorily prevent entry of birds and small animals and improve durability can be easily constructed in a simple process.

  In the present embodiment, the guard member 23 includes a vertical wall 23b that rises vertically so as to close the gap between the bird-proof body 21 and the hood portion 14, and a fixed piece (upper fixed piece 23a) that is fixed to the attachment member 22. And a lower fixing piece 23c). Even with such a simple configuration, the vertical wall 23b can satisfactorily prevent entry of small animals and the like, and the guard member 23 can be easily fixed to the mounting member 22 by the fixing piece.

  Moreover, in this Embodiment, since the clearance gap between the upper end edge of the bird-proof material 20 and the outer wall 2 is 8 mm or less, invasion of the small animal etc. from between the bird-proof main body 21 and the outer wall 2 is prevented. It is possible to improve the effect of preventing small animals and the like from entering the ventilation louver 10.

  Further, in the present embodiment, the bird-proof body 21 has a back surface portion 21c extending downward from the upper end edge of the inclined portion 21b on the outer wall 2 side, and the angle formed by the inclined portion 21b and the back surface portion 21c is an acute angle. Yes. With this configuration, it is difficult for birds or the like to stay on the bird-proof body 21, and the bird protection effect can be improved. Therefore, the durability of the ventilation louver 10 can be further improved, and contamination of the ventilation louver 10 due to feces can be well prevented.

  Furthermore, in this embodiment, the ventilation louver main body 11 includes a cover member 15 that covers the hood portion 14. The inclined portion 21 b of the bird-proof body 21 has a length such that the lower end side protrudes from the upper surface of the cover member 15. In this way, the tip of the inclined portion 21 b projects on the upper surface of the cover member 15, whereby entry of small animals and the like from between the bird-proof body 21 and the cover member 15 can be prevented. Further, rainwater or the like that has flowed down the inclined portion 21 b flows down the inclined surface 15 c of the outer surface of the cover member 15 without flowing down to the inside of the cover member 15, and then falls. Therefore, the effect of preventing the entry of wind and rain into the ventilation louver main body 11 can also be improved.

  The embodiment of the present invention has been described in detail above with reference to the drawings. However, the specific configuration is not limited to this embodiment, and design changes that do not depart from the gist of the present invention are not limited to this embodiment. Included in the invention.

DESCRIPTION OF SYMBOLS 1 Building 2 Exterior wall 3 Ventilation duct 10 Ventilation gallery 11 Ventilation gallery main body 12 Cylindrical part 13 Flange part 14 Hood part 15 Cover member 15c Inclined surface 20 Bird-proof material 21 Bird-proof main body 21b Inclined part 21c Back surface part 22 Mounting member 23 Guard member 23a Upper fixed piece (fixed piece)
23b Vertical wall 23c Lower fixed piece (fixed piece)
25 Fixing screw (fixing member)

Claims (6)

A ventilation gallery main body that is attached to a ventilation duct that communicates between the outside and the inside of the building;
A bird-proof material attached to the ventilation gallery main body,
The ventilation gallery main body is
A cylindrical part inserted into the ventilation duct;
A flange portion provided on the outer periphery of the cylindrical portion and disposed along the outer surface of the outer wall;
And a hood portion that is arranged to protrude from the outer wall to the outdoors,
The bird protection material is
A bird-proof body having an inclined portion inclined to descend from the outer wall side toward the outdoor direction;
An attachment member detachably attached to the outer periphery of the hood portion;
A guard member disposed in a gap between the bird-proof body and the hood,
The ventilation louver, wherein the bird-proof body is fixed to the attachment member by a fixing member so that the angle of the inclined portion can be adjusted.   The said guard member is the structure which has a vertical wall which stands | starts up perpendicularly so that the gap | interval of the said bird-proof main body and the said food | hood part may be plugged up, and the fixed piece fixed to the said attachment member. The ventilation gallery of 1.   The ventilation louver according to claim 1 or 2, wherein a gap between an upper end edge of the inclined portion and the outer wall is 8 mm or less.   The said bird-proof body has a back surface portion that extends downward from an upper end edge of the inclined portion on the outer wall side, and an angle formed by the inclined portion and the back surface portion is an acute angle. Ventilation gallery as described in any one of -3.   The said ventilation gallery main body is provided with the cover member which covers the said food | hood part, and the said inclination part of the said bird-proof main body has the length by which a lower end side protrudes above the said cover member, It is characterized by the above-mentioned. Ventilation gallery as described in any one of 4. It is the construction method of the ventilation louver according to any one of claims 1 to 5,
Inserting the tubular part into the ventilation duct and attaching the ventilation gallery main body to the outer wall;
Loosening the fixing member so that the angle of the inclined portion of the bird-proof material can be adjusted;
Attaching the attachment member to the outer periphery of the hood portion of the ventilation louver main body;
Adjusting the angle of the inclined part and projecting the lower end side of the inclined part above the hood part; and
Tightening the fixing member and fixing the bird-proof body to the mounting member;
A method for constructing a ventilation louver, comprising: