JP2001234675A - Ventilation louver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To compatibly improve the rain ingress preventive effect and the ventilation efficiency. SOLUTION: A louver pipe 4 extending through an opening part 2 in an external wall W, a slightly rising water drip piece 7 is provided on an inner peripheral surface thereof, and a net frame 10 having an insect net 9 is fitted on the indoor side of the water drip piece 7 in an attachable/detachable manner.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation gallery that can ensure high ventilation efficiency while preventing rainwater from entering a house.

[0002]

2. Description of the Related Art FIG.
As schematically shown in (A), a ventilation gallery c provided with an outdoor grill c1 and an indoor grill c2 is often used at one end and the other end of an opening b extending through the outer wall a and extending outside the house. . Initially, in this ventilation garb c, a coarse grid bird d1 and a fine insect net d2 are used to prevent birds and insects from entering the room through the opening b. Were attached to the openings of the outdoor grill c1, respectively.

However, in such a case, there is a problem that clogging easily occurs in the insect-controlling net d2. In recent years, for example, as disclosed in Japanese Patent Application Laid-Open No. 10-292938, the insect-controlling net d2 is installed indoors. A structure that is attached to the opening of the grill c2 (schematically shown in FIG. 10B) has been proposed.

[0004]

However, in this case, since the wind pressure from the outside is large and rainwater or the like easily blows indoors together with the wind, a louver e for directing the wind downward is provided in the opening b. It is necessary. As a result, there is a problem that the ventilation efficiency is lowered such as an increase in air resistance.

Therefore, the present invention is based on the principle that a small-sized water drainage piece is protruded from the inner peripheral surface of a gullry pipe extending through the opening and an insect-proof net is attached to the indoor side of the water drainage piece. Another object of the present invention is to provide a ventilation gully that can improve both the effect of preventing rainwater from entering a house and the ventilation efficiency.

[0006]

In order to achieve the above object, the invention according to claim 1 of the present application is arranged in an opening formed on an outer wall of a house and penetrating inside and outside the house, and the house can be naturally ventilated. A ventilation gallery, comprising a substantially cylindrical gallery pipe extending through the opening, an outdoor grill mounted on the outdoor side of the gallery pipe, and an indoor grill mounted on the indoor side of the gallery pipe. In addition, the gully pipe is provided with, on its inner peripheral surface, a water piece that rises at a small height from the inner peripheral surface, and a net frame having an insect repellent net is detachably attached to the indoor side of the water piece. Features.

In the invention according to a second aspect, the net frame is arranged so that an upper portion thereof is inclined outward to the outside, and the net frame is held by the drain pieces.

[0008] In the invention according to claim 3, the squirrel pipe comprises an outdoor-side cylindrical portion inserted into the opening from the outdoor side and an indoor-side cylindrical portion inserted from the indoor side into the opening. And, the gully pipe is characterized in that at least a bottom portion of the inner peripheral surface of the outdoor-side cylindrical portion, and at least a bottom portion of the inner peripheral surface of the indoor-side cylindrical portion include an overlapping portion that overlaps with each other. I have.

Further, in the invention according to claim 4, the outdoor-side cylindrical portion has an outer-flow inclined portion on its inner peripheral surface for flowing water droplets to the outdoor portion of the house, and the indoor-side cylindrical portion has The inner peripheral surface is formed with an inner flow inclined portion that allows water droplets to flow into the house.

According to a fifth aspect of the present invention, the outdoor-side tubular portion is inserted into an inner peripheral surface of the indoor-side tubular portion, and the water drainage piece is provided on the outdoor-side tubular portion. It is characterized by that.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a longitudinal sectional view of a ventilation gallery according to the present invention, and FIG. 2 is an exploded perspective view showing a main part thereof.

1 and 2, a ventilation gallery 1 extends through an opening 2 formed in an outer wall W of a house to form an air passage 3 having one end communicating with the outdoor part of the house and the other end communicating with the indoor part of the house. It is formed from the stub pipe 4 to be formed, and the outdoor grill 5 and the indoor grill 6 attached to the outdoor side and the indoor side of the stub pipe 4. On the inner peripheral surface of the gullary pipe 4, a small height water drainage piece 7 is protruded, and an insect repelling net 9 is provided on the indoor side of the water drainage piece 7.
Is detachably attached.

Here, in the present embodiment, the outer wall W is formed using an outer wall panel P which is integrally portable. As shown in FIG. 8, the outer wall panel P is made of a wooden or steel outer frame material 50.
A has a peripheral frame 50 formed by joining A to a rectangle,
Wall materials 51o and 51i are provided on the outdoor side surface and the indoor side surface of the peripheral frame 50 except for the opening 2 having a horizontally long rectangular shape.

The inner peripheral surface of the opening 2 is surrounded by, for example, a wooden base beam 52 framed in a rectangular shape via a middle frame member 52A. A rubber sheet-like watertight packing material 53 is fitted between the material 51o. In addition, on the outdoor side surface of the base beam 52,
The inner peripheral edge of the wall surface member 51o is disposed below the inner peripheral surface of the base rail 52 to form a gallery pipe mounting surface portion 52S from which the watertight packing material 53 is exposed.

Next, the stub pipe 4 has a substantially cylindrical shape extending through the opening 2 and, in this example, an outdoor-side cylindrical portion 4o inserted into the opening 2 from the outdoor side. It is formed from an indoor side cylindrical portion 4i inserted from the indoor side.

As shown in FIG. 2, in the present embodiment, the tubular portion 4o on the outdoor side has a rectangular tubular base 14 which connects the upper plate 11 and the lower plate 12 with a side plate 13; In this example, the flange piece 15 protrudes up and down from the outer periphery. Then, by fixing this flange piece 15 to the gullari pipe mounting surface 52S using screws or the like, the outdoor side tubular portion 4o is firmly attached to the foundation bar 52 via a watertight packing material 53. . The wall material 51 on the outdoor side
The joint between o and the base 14 is filled with a caulking material 16 (shown in FIG. 1) for waterproofing.

The base 14 is provided with a drain piece 7 standing at a small height from the inner peripheral surface of the base 14 at the indoor side edge.
In this example, the case where the indoor side edge is formed with an external inclination in which the upper part is inclined to the outdoor side is illustrated.

The drain piece 7 has at least a lower drain piece 7L extending from the lower plate piece 12, but preferably includes an upper drain piece 7U extending from the upper plate piece 11. As shown in the example, it is preferable to include a drain piece (not shown) on the side extending from the side plate piece 13, that is, to be formed over the entire periphery of the indoor side edge. In this example, the lower drainage portion 7L is formed substantially vertically, and the upper and lower drainage portions 7U are formed with the outer inclination. However, the lower drainage portion 7L is also formed as the outer drainage portion. It may be formed with an inclination.

A net frame 10 is detachably mounted on the indoor side of the drainer 7.

The net frame 10 has a base frame 17 held by the drainer 7 and an insect-proof net 9 attached thereto.
It is arranged at an intermediate position of the air passage 3. Base frame 17
In this example, as shown in FIG. 3, a rectangular peripheral frame portion 17A which is inclined outwardly along the indoor side surface of the water drainage piece 7, projects from the peripheral frame portion 17A to the outdoor side, and the water drainage piece 7 And a hook-shaped upper and lower engaging piece 17B detachably engaged with an end of the peripheral frame 1.
7A and a holding plate 17C fixed by welding or the like on the indoor side surface, for example.

The net frame 10 can effectively prevent rainwater from entering the house. That is, the net frame 10
When rainwater blows with the wind from the outdoor grill 5, the rainwater is captured by the insect-proof net 9, guided along the insect-proof net 9, and dropped downward. Moreover, since this insect-repelling net 9 is arranged at a distance from the indoor,
The rainwater on the insect-controlling net 9 once captured can be prevented from blowing into the room.

Further, since there is no need to provide a conventional louver e (shown in FIG. 10B) in the air passage 3, there is no increase in air resistance and the ventilation efficiency can be greatly improved. In particular, in the case where the net frame 10 is arranged with an outer inclination as in this example, the opening area is substantially increased, so that the ventilation efficiency can be further improved.

The outdoor side tubular portion 4o is provided with the lower plate piece 12 which is inclined upward toward the indoor and stretches upward, so that water droplets (rainwater) captured by the insect repellent net 9 on the inner peripheral surface are directed to the outdoor portion of the house. And an outer flow inclined portion 19 for flowing the water. In this example,
In order to further smooth outflow of rainwater, the outflow slope portion 19 is formed by a gentle slope portion 19A on the indoor side and a steep slope portion 19B on the outdoor side.

The base portion 14 extends from the position of the flange piece 15 beyond the outer wall surface to the outdoor side.
4A, a circumferential groove 21 is formed on the outer peripheral surface of the extended portion 14A on its upper surface and side surfaces to receive rainwater dripping from the outer wall surface and guide it downward.

On the inner peripheral surface of the extension portion 14A, upper and lower mounting portions 22U and 22L for mounting an outdoor grill are provided on surfaces facing vertically. This attached portion 22U, 2
2L has locking portions 23U and 23L in which rows of steps, such as hooks, extending parallel to the outer wall surface are arranged in multiple rows.
The U and 23L are formed continuously over the entire width of the base 14 as in this example, or intermittently at appropriate intervals.

Next, the tubular portion 4i on the indoor side is substantially the same as the tubular portion 4o, and has a rectangular tubular base body 27 surrounded by an upper plate piece 24, a lower plate piece 25, and a side plate piece 26; A flange piece 29 protruding from the outer periphery of the base body 27 is provided, and this flange piece 29 is fixed to the wall surface member 51i on the indoor side using a screw or the like.

In the present embodiment, the base plate 27 has, at the outdoor side edge, a lower plate piece 25 protruding more outward than the upper plate piece 24, and a side plate piece 26 having an inclined edge 26e having an inner slope. Thus, the lower plate piece 25 and the upper plate piece 24 are connected. As shown in FIG. 1, the base body 27 on the outdoor side is provided in the inner peripheral surface thereof.
4 are inserted in the form of a plug to connect.

Therefore, at least the bottom portion of the inner peripheral surface of the outdoor base 14, ie, the lower plate piece 12, and the at least bottom surface portion of the inner peripheral surface of the indoor base 27, ie, the lower plate piece 25, are mutually connected. An overlapping portion 30 is formed.
On the other hand, at least between the upper plate pieces 11 and 24 are separated without overlapping each other. Due to the formation of the separated portion, the insertion connection between the bases 14 and 27 is smoothly performed, and the formation of the overlapping portion 30 causes the rainwater dripping in the stub pipe 4, particularly the rainwater captured by the insect-proof net 9, to leak. Thus, it is possible to prevent corrosion and mold from entering the outer wall W.

In order to more reliably prevent the rainwater from leaking, as shown in FIG. 3, a drop piece 12A projecting downward from the indoor side edge of the lower plate piece 12 to promote the dripping of rainwater is provided. It is preferable to provide a water return piece 25 </ b> A that protrudes upward and abuts or presses against the lower plate piece 12 at the outdoor edge of the piece 25. Further, for the same purpose, the lower plate piece 25 is tilted downward toward the interior to form an inner flow inclined portion 20 that allows water droplets to flow to the interior of the house. The inner flow slope 20 allows the rainwater trapped by the insect net 9 to flow down and prevents the rainwater from entering the outer wall W, similarly to the outer flow slope 19.

The overlapping portion 30 can absorb variations in the thickness of the outer wall W when the gully pipe 4 is mounted in the opening 2, and is useful for improving workability.

Next, the outdoor grill 5 is shown in FIGS.
As shown in the figure, a case-shaped hood body 3 exposed outdoors
1 and upper and lower mounting portions 32U and 32L extending from the hood main body 31 and held by the mounted portions 22U and 22L of the outdoor side cylindrical portion 4o. In this example, the upper and lower mounting portions 32U and 32L are plate-shaped upper and lower mounting members 33 fixed to the hood main body 31 with screws or the like.
34, and the upper and lower mounting members 33,
34 illustrates a case where the members 34 are arranged so as to be displaced inward and outward of the house.

More specifically, the upper mounting member 33 has a substantially L-shape in which a mounting piece 36 extending substantially horizontally toward the indoor side is provided on an upper edge of a fixing piece 35 fixed to the hood body 31. The mounting portion 36U forms the mounting portion 32U. In the present example, a step portion K having a small height is formed at a substantially intermediate position of the mounting piece 36 for the purpose of increasing rigidity. The mounting piece 36 is provided with an engaging portion 36A having a hook-like stepped portion which is locked to the locking portion 23U of the upper mounted portion 22U on its outward facing surface (upper surface). It is formed in the vicinity.

Similarly, the lower mounting member 34 has a substantially L-shape in which a mounting piece 39 corresponding to the mounting portion 32L is provided substantially horizontally on the upper edge of the fixing piece 37.
An engaging portion 39A to be locked by the locking portion 23L of the lower attached portion 22L is formed on an outward surface (lower surface) of the lower portion. The engagement portion 39A is formed so as to be displaced to the outdoor side from the indoor side edge due to the displacement. In this example,
For the sake of commonality, the upper and lower mounting members 33 and 34 have the same configuration.

Further, in the outdoor grill 5, at least one of the upper and lower mounting pieces 36, 39 is provided with a deformation restricting portion 40 for preventing approach to the other. This deformation restricting section 40
Is a flat receiving piece 41 extending from at least one of the upper and lower mounting pieces 36 and 39 toward the other.
A small gap G allowing deformation of the upper and lower mounting pieces 36 and 39 is formed between the tip of the first mounting piece and the other mounting piece.

Accordingly, it is possible to effectively prevent the upper and lower mounting pieces 36 and 39 from being excessively deformed in a direction approaching each other and the hood main body 31 from accidentally falling off from the outdoor side tubular portion 4o. In addition, since a necessary amount of deformation is provided by the formation of the small gap G, the ease of detachment is ensured.

In this example, the receiving piece 41 (deformation restricting portion 40) has an upper end fixed to the upper mounting piece 36 and hangs down toward the lower mounting piece 39. In addition, the indoor side edge of the receiving piece 41 terminates at the upper end side at a position separated from the engaging portion 36A to the outdoor side, and terminates at the lower end side at a position near the lower engaging portion 39A. .

As described above, in this embodiment, the lower mounting piece 39
Since the upward elastic deformation of the engaging portion 39A is suppressed by the receiving piece 41, even when a downward external force acting on the hood body 31 in a normal mounting state acts on the hood main body 31, this external force is reduced. The hood main body 31 is prevented from falling off by being supported by the receiving piece 41. On the other hand, the upper mounting piece 36 can be elastically deformed vertically in a region Y from the indoor edge on the upper end side of the receiving piece 41 to the engaging portion 36A. Therefore, when an upward and artificial force is applied, the upper mounting piece 36 is deformed in the region Y, so that the hood main body 31 can be lifted upward, and the lower engaging portion can be lifted. The locking of the 39A can be easily released. That is, it is possible to further improve the ease of intentional attachment / detachment while maintaining the effect of preventing detachment in a normal attachment state at a high level.

As shown in FIG. 7, in order to prevent the receiving piece 41 from shifting to the left and right and to sufficiently exert the ability to support external force, the mounting piece on the side having the small gap G (the lower mounting piece in this example). It is preferable to form rib-shaped projections 42, 42 extending on both sides of the piece 39) in the vicinity of the receiving piece 41. At this time, the protrusion height H of the ridge 42 is preferably equal to or greater than the small gap G.

The hood main body 31 has a box-shaped base housing 31A having a substantially full opening on the indoor side surface, and a lattice bar 31B for bird protection is formed on the lower surface of the base housing 31A. . The hood body 31 is not particularly limited, and may have various conventional shapes and structures.

The indoor grill 6 has a well-known opening / closing means for freely opening and closing the air passage 3 and a well-known louver means for adjusting the direction of the wind. Various things can be adopted. Note that the insect net 9 is not provided because it is disposed on the stub pipe 4.

FIG. 9 is a sectional view showing another embodiment of the ventilation gallery 1 of the present invention. In this example, the squirt pipe 4 is formed only of the indoor-side cylindrical portion 4i into which the opening 2 is inserted from the indoor side.

More specifically, the base 27 of the cylindrical portion 4i is formed of a cylindrical body extending continuously between the indoor surface and the outdoor surface of the outer wall W. In this example, the base 27 has a substantially cone shape whose diameter increases toward the indoor. On the outdoor side of the large-diameter portion 27A, a substantially cone-shaped small-diameter portion 27B expanding toward the outdoors is formed via a step 27C. Therefore, in this example, the large-diameter portion 27A and the small-diameter portion 27B form the inner flow inclined portion 20 and the outer flow inclined portion 19 through which water droplets flow to the inside and outside of the house. The large diameter portion 27A may be formed in a right cylindrical shape.

The base 27 is provided with a ring-shaped drain piece 7 which rises at a small height from the inner peripheral surface of the step portion 27C to prevent rainwater from entering from outside. Further, the stub pipe 4 has a holding tube 43 which is freely inserted into and removed from the large diameter portion 27A. The net frame 10 is sandwiched between the outdoor end of the holding tube 43 and the drainage piece 7. It is held detachably. In this example, the net frames 10 are arranged substantially vertically.

Although the preferred embodiment of the present invention has been described in detail above, the present invention is not limited to the illustrated embodiment, but may be implemented in various forms.

[0045]

As described above, the ventilation gully of the present invention has a small-height drainage piece projecting from the inner peripheral surface of a gully pipe that extends through the opening of the outer wall, and uses this drainage piece. Since the insect-proof net is installed, it is possible to effectively prevent rainwater from entering the house. That is, when rainwater or the like blows from the outdoor grill together with the wind, the rainwater or the like is captured by the insect repellent net, guided along the insect repellent net, and dropped downward. In addition, since the insect repellent net is arranged at a distance from the indoor, it is possible to prevent the rainwater on the insect repellent net once captured from blowing into the room with the wind.

Further, since it is not necessary to provide a conventional louver in the air passage, there is no increase in air resistance, and the ventilation efficiency can be greatly improved.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating an embodiment of a ventilation louver of the present invention.

FIG. 2 is an exploded perspective view showing a main part thereof.

FIG. 3 is a sectional view showing an attached state of a net frame.

FIG. 4 is a perspective view showing a mounting portion of the outdoor grill.

FIG. 5 is a front view thereof.

FIG. 6 is a cross-sectional view illustrating an attached state of an outdoor grill.

FIG. 7 is a diagram illustrating a deformation restricting portion of the outdoor grill.

FIG. 8 is a sectional view showing an example of an outer wall panel.

FIG. 9 is a cross-sectional view illustrating another embodiment of the ventilation lash of the present invention.

FIGS. 10A and 10B are diagrams illustrating a conventional technique of ventilation galleries.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 2 Opening 4 Guarari pipe 4i Indoor cylindrical part 4o Outdoor cylindrical part 5 Outdoor grill 6 Indoor grill 7 Drain piece 9 Insect repellent net 10 Net frame 19 Outward slope 20 Inner slope 30 Overlapping part W Outer wall

Continued on front page F-term (reference) 2E036 JA09 JB01 JB06 JC01 KA02 KA04 KA05 KB02 LA08 3L058 BA02 BB04 BC05 BC07 3L080 AE05

Claims (5)

[Claims] A ventilation pipe formed in an outer wall of a house and formed in an opening penetrating into and out of the house and capable of naturally ventilating the house, wherein the pipe is substantially cylindrical and extends through the opening. An outdoor grill mounted on the outdoor side of the gallery pipe, and an indoor grill mounted on the indoor side of the gallery pipe, and the gallery pipe has an inner peripheral surface at a small height from the inner peripheral surface. A ventilation rattle comprising a rising water piece, and a net frame having an insect-proof net is detachably attached to the indoor side of the water piece. 2. The ventilation gusset according to claim 1, wherein the net frame is arranged with an outer slope having an upper portion inclined to an outdoor side, and the net frame is held by the drain pieces. 3. The gusset pipe comprises an outdoor cylinder inserted into the opening from the outdoor side, and an indoor cylinder inserted from the indoor into the opening. 3. An overlapping portion in which at least a bottom portion of an inner peripheral surface of the outdoor-side cylindrical portion and at least a bottom portion of an inner peripheral surface of the indoor-side cylindrical portion overlap with each other. Ventilation rattle as described. 4. The outdoor-side cylindrical portion has, on an inner peripheral surface thereof, an outward flow inclined portion for flowing water droplets to an outdoor portion of the house, and the indoor-side cylindrical portion has a water droplet on its inner peripheral surface. The ventilation gusset according to claim 3, wherein an inner flow slope portion for flowing the air into the house interior is formed. 5. The outdoor-side cylindrical portion is arranged so as to be inserted into an inner peripheral surface of the indoor-side cylindrical portion, and the outdoor-side cylindrical portion is provided with the water drainage piece. Claim 3
Or the ventilation gull according to 4.