JP2003202143A - Outdoor hood - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an outdoor hood which prevents durability of home materials from being damaged, is capable of improving design properties and has small pressure loss. <P>SOLUTION: The outdoor hood is made up of a flange part 6 fitted to an external wall 5 positioned in an opening 3 of the outdoor side and having an opening 25 approximately at the center, a main body 8 composed of a duct 4 fitted to the flange part 6, communicating with a room 1 and the outdoors 2 and projecting from the opening of the outdoor side 3 by a prescribed length and a seal packing 7 brought into circumferential contact with the opening 25 of the flange part 6 to adhere to the outer periphery and having an opening approximately at the center, and having an opening 10 communicating with the duct 4. By the structure mentioned above, damage to the durability of home materials is prevented, the design properties can be improved and pressure loss is small in the outdoor hood. <P>COPYRIGHT: (C)2003,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an outdoor hood attached to a ventilation opening for ventilation of a building.

[0002]

2. Description of the Related Art In recent years, a house in a cold region has an outer wall having a heat insulating structure so that the indoor temperature is not affected by the outside air temperature. For this reason, a ventilation port is required, but due to the intrusion of rainwater from the outdoor hood attached to the outdoor side of the ventilation port during strong wind and rain, or the formation of dew condensation water in the duct in winter,
The freezing of water droplets in the winter sometimes peeled off and damaged the outer wall, or stained the wall surface around the outdoor hood, thereby impairing the durability of the housing material.

Conventionally, as an example of this type of outdoor hood, the one disclosed in Japanese Patent No. 3135208 has been known.

The structure will be described below with reference to FIGS. 14 and 1.
This will be described with reference to FIG.

As shown in FIGS. 14 and 15, the outer wall 1
01 is provided with an opening 104 which is opened from the indoor 102 to the outdoor 103, and the circular or rectangular duct 105 is provided there.
Is fixed by penetrating through and the ventilation grill 106 is provided in the interior of the duct 105 as necessary, and
The outdoor hood 107 is arranged in 03, and this outdoor hood 107
The inner diameter of the tubular portion 108 provided on the outside is set larger than the outer diameter of the duct by a predetermined millimeter unit, and the outdoor side opening 109 is provided.
There is an outdoor hood 107 having a structure in which the opening outer periphery 110 of the duct 105, which is further projected by a predetermined length, can be fitted and connected in a wrapped state.

[0006]

In such a conventional outdoor hood, the outer circumference 110 of the opening of the duct 105 protruding from the outdoor side opening 109 by a predetermined length is provided in the outdoor hood 1.
Since the cylindrical portion 108 of 07 is set to a large size by a predetermined millimeter unit and is configured to be fit and connected in a wrapped state, the humidity contained in the warm air from the room 102 becomes dew condensation water due to the difference between the inside and outside temperatures. Condensed water,
Rainwater that has entered the outdoor hood 107 in the event of a snowstorm or storm is exposed to the outside 10 from the tubular portion 108 that has jumped out of the outer wall 101.
Most are discharged to 3. However, the duct 105
Since the cylindrical portion 108 of the outdoor hood 107 is set to be large in the opening outer periphery 110 by a predetermined millimeter unit, unless the gap 111 is filled with a sealing material or the like, water droplets flow back to the outer wall 101 side due to the capillary phenomenon, and this outdoor hood is closed. There is an aesthetic problem that it overflows from 107 and pollutes the surrounding outer wall 101. Furthermore, in cold regions during the severe winter, the dew condensation water and rainwater that have overflowed from the outdoor hood 107 freeze and the outer wall 10
There was a problem such as causing peeling damage of No. 1. Also,
Even if the protrusion of the tubular portion 108 is made larger than the protrusion of the duct 105 in this configuration, the same problem will occur as long as the tubular portion 108 is set to be large in a predetermined millimeter unit.

Further, in order to solve this problem, the duct 105 and the cylindrical portion 108 are located at a position farthest from the outer wall 101 as much as possible.
Therefore, the distance between the hood 107 and the cylindrical portion 108 needs to be set large in order not to sacrifice the ventilation performance, and the depth dimension of the hood 107 from the outer wall 101 is increased. There was a problem that the design of the building installed on the wall was impaired, and ventilation performance and design were not compatible.

Furthermore, even if the nominal duct diameter is the same, there are several kinds of ducts depending on the material of the duct. For example, vinyl chloride duct, spiral steel pipe duct, aluminum flexible duct, etc., the nominal duct diameter is Φ1.
In the case of 00, the outer diameter dimension is Φ102 mm to Φ.
Since there is a slight difference from 114 mm, there is a problem in that it is necessary to prepare at least two types in order to eliminate variations in the gap of the tubular portion 108 according to the slight difference in the outer diameter of the duct.

The present invention solves the above problems and prevents the durability of the housing material from being impaired, improves the design of the product, and has a small pressure loss without sacrificing ventilation performance and a duct. It is an object of the present invention to provide an outdoor hood capable of coping with the difference in outer diameter dimension of the.

[0010]

In the outdoor hood of the present invention, a flange portion which is attached to an outer wall and has an opening portion which communicates with an outdoor side opening portion provided in the outer wall is formed at a substantially central portion, and the flange portion. When attached to the outer wall, the inner periphery of the opening formed substantially in the center is in close contact with the outer periphery of the duct that communicates the interior and the exterior and is protruded by a predetermined length from the outdoor opening. The main body includes a seal packing provided in the opening of the flange, and a hood provided in the main body and having an opening communicating with the duct.

According to the present invention, the durability of the housing material can be prevented from being impaired, the design of the product can be improved, the pressure loss can be reduced without sacrificing ventilation performance, and the outer diameter of the duct can be different. It aims to provide an outdoor hood that can also be used.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention comprises a flange portion which is attached to an outer wall and which has an opening portion which is communicated with an outdoor side opening portion provided in the outer wall in a substantially central portion,
When this flange is attached to the outer wall, the inner periphery of the opening formed in the approximate center is closely attached to the outer periphery of the duct that communicates the inside and the outside and projects a predetermined length from the outdoor opening. An outdoor hood having a main body composed of a seal packing provided in the opening portion of the flange portion, and a hood provided in the main body and having an opening communicating with the duct. At this time, even if rain, snow, etc. enter the outdoor hood, rainwater does not drip from the duct and does not leak to the outer wall or leak out, and there is no aesthetic problem of polluting the outer wall around. Furthermore, it has the effect of preventing the condensation and rainwater that overflows from the outdoor hood from freezing in cold regions during the severe winter, causing peeling damage to the outer wall, and preventing the durability of housing materials from being impaired. That. Further, by making the depth dimension of the product thin, it is possible to improve the design of the product and the entire building when the product is installed, and also to have good ventilation performance and to cope with the difference in the outer diameter dimension of the duct.

Hereinafter, embodiments of the present invention will be described with reference to FIGS.
This will be described with reference to FIG.

(Embodiment 1) As shown in FIGS. 1 to 4, a flange portion 6 attached to the outer wall 5 and having an opening portion 25 at substantially the center located at the outdoor opening portion 3, and this flange portion. 6 is connected to the inside 1 and the outside 2 so as to be in close contact with the opening 25 of the flange 6 so as to be in close contact with the outer diameter dimension A of the duct 4 protruding from the opening 3 on the outdoor side by a predetermined length. The outdoor hood 12 is provided with a main body 8 including a seal packing 7 having a central opening, and a hood 9 provided with the main body 8 and having an opening 10 communicating with the duct 4.

When the outdoor hood 12 is installed on the outer wall 5, the duct 4 is inserted into the outdoor side opening 3 opened in the outer wall 5 so that the indoor 1 and the outdoor 2 communicate with each other. After the duct 4 is inserted into the inner diameter B of the inner peripheral portion of the seal packing 7 provided in circumferential contact with the opening 25 of the flange portion 6, the duct 4 is temporarily fixed to the outer wall 5 of the flange portion 6. After that, the outer wall 5 is screwed to the outer wall 5 through the four screw holes 14 provided in the flange portion 6, and then the hood 9 provided with the rattle 11 is attached to the main body 8 from the front surface, so that the outer wall 5 has an outdoor hood. Installation of 12 is completed.

At this time, if the seal packing 7 is a duct 4 having the same nominal diameter, regardless of the type of the duct, the seal packing 7 has an inner diameter capable of being brought into close contact with the outer diameter dimension of the duct. Made of flexible material,
For example, synthetic rubber, urethane resin, EDPM, soft foam resin, soft resin and the like. The inner diameter dimension B of the inner peripheral portion of the seal packing 7 is formed in a shape smaller than the smallest duct outer diameter dimension A so that it can be closely attached to the smallest duct outer diameter dimension A among the same nominal duct diameter. By inserting the duct 4 into the main body 8 provided with 7 while expanding the inner peripheral portion of the seal packing 7 by utilizing the elasticity of the seal packing 7, the tubular portion 108 enclosing the duct as in the conventional example of FIG. In addition, since the seal packing 7 is in close contact with the outer diameter of the duct 4 over the entire circumference with a width as small as possible, the contact area between the seal packing 7 and the outer diameter of the duct 4 can be reduced. Further, since the projection length C of the duct 4 from the outdoor side opening 3 can be made small, it is not necessary to excessively project the cylindrical portion 108 from the outer wall as in the conventional example of FIG. 14, and the depth dimension of the product can be reduced. It is possible to improve the design of the product and the entire building when the product is installed. Further, even if the hood 9 does not have a large protrusion to the outdoor side, a sufficient distance can be provided between the outdoor end of the duct 4 and the hood 9, and sufficient ventilation performance can be ensured.

Further, in the seal packing 7, when the outer circumference of the duct 4 and the inner circumference of the seal packing 7 are in close contact with each other, the convex portion 16 provided on the inner circumference of the seal packing 7 is directed outward with respect to the duct 4. And

Further, when the dew condensation water 17 and the like accumulated in the duct 4 is discharged to the outside 2, the opening of the flange portion 6 is provided just below the protruding duct 4 so that the dew condensation water 17 is dropped at a position as far as possible from the outer wall 5. 25, a draining plate 18 is provided below the draining plate 18. The draining plate 18 has a width E smaller than the outer diameter dimension A of the duct, and a predetermined draining plate more than the length C of the duct protruding from the outdoor side opening 3. With a protruding length D of. As a result, the dew condensation water collected in the duct 4 is received and discharged outdoors.

Further, a plurality of fixing claws 26 are provided in the opening portion 25 of the flange portion 6 so as to be circumscribed and fixed to the outer peripheral side of the duct 4.

In the above structure, the outdoor hood 1 is on-site.
When 2 is installed, the duct 4 is projected to a predetermined length from the outdoor side opening 3 that communicates the indoor 1 and the outdoor 2 in a ventilation manner, and the duct 4 is projected to the outer peripheral side to the predetermined length. The main body 8 of the outdoor hood 12 is brought into close contact with the outer wall 5 through the seal packing 7, and the main body 8 which is a part of the outdoor hood 12 is attached to the outer wall 5 through the screw holes 14 provided in the flange portion 6. After fixing by screwing, the hood 9 provided with the rattle 11 is attached to the main body 8. In this case, if a small amount of caulking material, vaseline, or the like is applied to either the seal packing 7 or the outer peripheral side of the duct 4, it can be smoothly inserted, and the adhesion between the duct 4 and the seal packing 7 becomes more reliable.

The seal packing 7 is made of a material having rubber-like elasticity and flexibility so as to closely follow the duct 4 having the same nominal diameter regardless of the difference in outer diameter depending on the type of the duct 4. The cross-sectional shape is tapered 15 toward the inner peripheral side.

Further, the seal packing 7 is configured such that the convex portion 16 provided on the inner peripheral portion thereof faces outward with respect to the duct 4 when the outer peripheral portion of the duct 4 is inserted, and the convex portion 16 has an outer surface. It will serve to stop or repel water around the entire circumference.

Further, a draining plate 18 for dropping the condensed water 17 in the duct 4 to a position as far as possible from the outer wall 5
Is provided below the opening 25 of the flange 6 at a position below the outdoor opening 3 of the duct 4 with a length and width as small as possible without sacrificing ventilation performance. Can be provided.

When the outdoor hood 12 is installed on the site, the outer periphery of the duct 4 protruding from the outer wall 5 is attached to the outdoor hood 12 provided with a plurality of fixing claws 26 arranged in the opening 25 of the flange portion 6. The side can be attached so that the fixed claw 26 is in pressure contact, and the elastic force of the fixed claw 26 can hold and fix it to the outer wall 5 via the duct 4.

As described above, according to the outdoor hood 12 of the first embodiment of the present invention, the flange portion 6 attached to the outer wall 5 and having the opening 25 at the substantially central portion located at the outdoor side opening 3 is provided.
The flange portion 6 is attached to the flange portion 6 so that the indoor portion 1 and the outdoor portion 2 are communicated with each other so as to be closely fitted to the outer diameter dimension A of the duct 4 protruding by a predetermined length from the outdoor side opening portion 3. Main body 8 including a seal packing 7 which is provided so as to be in circumferential contact with the opening 25 of the main body 8 and has an opening at the substantially center thereof, and the main body 8
The hood 9 is attached to the hood 9 and is provided with the hood 9 having the opening 10 communicating with the duct 4. Therefore, even if the rainwater enters the outdoor hood 12 in the event of a snowstorm or a storm, rainwater will enter the duct 4.
It does not drip from the outer wall 5 and does not leak to the outer wall 5, and also prevents dew condensation water 17 overflowing from the outdoor hood 12 from freezing in cold regions during the severe winter, causing peeling damage to the outer wall 5, etc. Can be prevented from impairing the durability. Also, there is no aesthetic problem of overflowing from the outdoor hood 12 and polluting the surrounding outer wall 5, and by making the depth dimension of the product thin, the design of the product and the entire building when the product is installed can be improved. At the same time, the protrusion from the outer wall 5 of the duct 4 can be reduced,
The pressure loss is small and the ventilation performance can be sufficiently secured.

The on-site water-tight connection between the duct 4 and the outdoor hood 12 is made of rubber that allows the ducts 4 having the same nominal diameter to adhere to different outer diameters of the duct 4 regardless of the type of the duct 4. Since it can be adhered only by inserting the duct 4 into the outdoor hood 12 (dry method) through the seal packing 7 having elastic elasticity and flexibility, the conventional caulking material (wet method), that is, the caulking material is used. It eliminates the need for on-site work to fill the gaps, making it easier and more reliable in a short time.

Further, the seal packing 7 has an inner diameter capable of closely adhering to ducts having different outer diameters regardless of the type of the duct 4 as long as the duct 4 has the same nominal diameter, and has rubber-like elasticity and flexibility. Therefore, it is not necessary to prepare for each outer diameter dimension that differs depending on the duct, and it is possible to deal with the duct 4 having a slight difference in outer diameter dimension with one type, so that parts can be shared.

Further, since the cross sectional shape of the seal packing 7 is tapered toward the inner peripheral side, the contact area between the seal packing 7 and the outer circumference of the duct 4 can be reduced,
Since the protrusion distance from the outdoor side opening 3 of the duct 4 can be reduced, the distance between the outdoor side end of the duct 4 and the hood 9 can be sufficiently secured, ventilation performance can be sufficiently secured, and the depth dimension of the product can be made thin. It is possible to improve the design of the product and the entire building when the product is installed.

Further, since the convex portion 16 which functions as a water stop or a water repellent is provided all around the inner peripheral portion of the seal packing 7, it is possible to prevent the dripping water transmitted from the duct 4 from flowing to the outer wall 5 side. , Can be reliably dropped on the draining plate 18 on the lower side thereof.

Further, when the dew condensation water 17 and the like accumulated in the duct 4 is discharged to the outside 2, the portion positioned below the outdoor side opening 3 of the duct 4 so as to be dropped at a position as far as possible from the outer wall 5, that is, Below the opening 25 of the flange portion 6, there is a downward slope toward the outdoor 2 side, and a predetermined protrusion length D that is greater than the protrusion length C of the protruded duct, and the outer diameter dimension of the protruded duct. Since the draining plate 18 having a width E smaller than A is provided, in order to receive the condensed water 17 collected in the duct 4 and discharge it to the outdoors 2 from a position as far as possible from the outer wall 5, rainwater drips from the duct 4 to the outer wall 5. It does not hang or leak, and there is no aesthetic problem of overflowing from the outdoor hood 12 and polluting the surrounding outer wall 5. Further, it is possible to prevent the dew condensation water 17 and the rainwater overflowing from the outdoor hood 12 from freezing in a cold region in the severe winter season to cause peeling damage of the outer wall 5 and prevent the durability of the housing material from being impaired. .

Further, by making the size of the draining plate 18 as small as possible in both length and width, sufficient ventilation performance can be secured without obstructing the passage of air.

Further, a plurality of fixing claws 26 are provided in the opening of the flange portion 6 so as to be circumscribed and fixed to the outer diameter dimension A of the duct.
Since they are provided at equal intervals, the connection to the duct 4 can be made with one touch using the outer peripheral surface of the duct 4, and the seal packing 7
It is possible to secure sufficient mounting strength in combination with the close contact and to simplify the construction.

(Embodiment 2) As shown in FIG. 5, the cross-sectional shape of the inner peripheral portion of the seal packing 7B provided in circumferential contact with the opening 25 of the flange portion 6 is such that the duct 4 is fitted to the inner peripheral portion. When it is inserted, the tip is formed in a dogleg shape so as to come into close pressure contact with the outer diameter dimension A of the duct over the entire circumference.

In the above construction, when the outdoor hood 12 is connected to the duct 4 through the seal packing 7B in the field, the tip of the inner peripheral portion of the seal packing 7B is in close contact with the outer diameter dimension A of the duct in a tight contact, and the duct Outer diameter A
Despite the slight difference, the curve will follow at the root of the dogleg shape.

As described above, according to the outdoor hood 12 of the second embodiment of the present invention, the seal packing 7B has a cross-sectional shape of the inner peripheral portion such that the tip thereof is in close contact with the outer peripheral side of the duct 4 in the entire periphery. Since it has a V-shape and is integrally formed so as to follow the outer periphery of the duct 4 at the root of the V-shape, regardless of the slight difference in the outer diameter A of the duct,
It is possible to provide the outdoor hood 12 which has good watertightness and good followability. Further, when the duct 4 is inserted, the cross-sectional shape of the inner peripheral portion of the seal packing 7B is formed in a dogleg shape in a direction with less insertion resistance, so that it can be inserted more smoothly.
It is possible to provide the outdoor hood 12 with good workability.

(Embodiment 3) As shown in FIGS. 6 to 8, an expandable seal ring 22 is provided around the entire circumference of the opening 25 of the flange 6.

In the above structure, when the outdoor hood 12 is installed at the site, the seal ring 22 is expanded by a chemical reaction, expanded on site, or made of a chemical material that expands in time, or a material that expands with the passage of time. Attached to the outdoor side opening portion 3, the duct 4 and the opening portion 25 of the flange portion 6 to expand or
It will be foamed and filled in the field, and the adhesion will be demonstrated. In addition, for example, the two-liquid type chemical materials 23A and 23B that expand and foam by mixing are formed into a seal ring shape that holds the two liquids as partitions, and if necessary, the partition 24 is removed and mixed to expand. It can also be formed so as to foam.

Further, the sheet ring may be formed of a gelled material that expands and expands by absorbing water, or a sheet-like material that expands with time, and the like.

As described above, according to the outdoor hood 12 of the third embodiment of the present invention, since the expandable seal ring 22 is provided around the entire circumference of the opening 25 of the flange portion 6, it is mixed, for example. The two-liquid chemical materials 23A and 23B that expand and foam due to the above are formed into a seal ring 22 shape that holds each of the two liquids by partitioning, and if necessary, the partition 24 is removed by mixing by kneading by hand. Then, the outdoor hood 12 is again provided so as to be in contact with the entire circumference of the opening 25.
Is a construction method of expanding and foaming after being set on the outer wall 5, and filling the gaps spreads to every corner along the shape of the filling part more than the conventional caulking material, so Watertightness is improved and construction requiring watertightness becomes more reliable.

(Embodiment 4) As shown in FIGS. 9 and 10, a curl shape 19 protruding toward the outdoor side 2 is formed on the entire circumference of the opening 25 of the flange portion 6A, and the opening 25 The bottom side of the curled shape 19 is projected more than other curled portions to form a draining plate 18A, and the seal packing 7A is the outer wall 5 of the flange 6A.
It is configured to be provided on the side. Further, the entire peripheral portion 20 at the opening tip of the seal packing 7A has a predetermined thickness and an opening dimension 27, and the opening dimension 27 is formed smaller than the minimum outer diameter dimension A of the duct, and the flange portion 6A and the outer wall 5 are formed. It is a configuration in which it is fixedly held via a mounting plate 21 between the two. Further, the seal packing 7A projects toward the outer wall 5 side from the end of the flange portion 6A on the outer wall 5 side by a predetermined dimension.

In the above structure, when the main body 8A is inserted from the outdoor side 2 into the duct 4 which is protruded from the outdoor side opening 3 by the predetermined length D, the seal packing 7A has the entire peripheral portion 20 at the opening tip, The curl shape 19 of the flange portion 6A,
Regardless of the difference in the type of the duct 4 with respect to the nominal diameter of the duct, it is sandwiched between the duct outer diameter dimension A and adheres to the duct 4.

As described above, according to the outdoor hood 12 of the fourth embodiment of the present invention, the curl shape 19 protruding toward the outdoor side 2 is formed on the entire circumference of the opening 25 of the flange 6A, and the opening is formed. The bottom side of the curl shape 19 of 25 is projected more than the other curled shape to form a draining plate 18A, and the seal packing 7A is a flange portion 6A.
Since it is provided on the outer wall 5 side of the seal packing 7
A is sandwiched between the curl shape 19 of the flange portion 6A and the outer diameter dimension A of the duct at a constant pressure and is in close contact, and is more watertight, and rainwater overflows from the outdoor hood 12 and pollutes the surrounding outer wall 5. There is no aesthetic problem. In addition, the dew condensation water 17 overflowing from the outdoor hood 12 in the cold district in the severe winter season
It is possible to prevent the freezing of rainwater and rainwater to cause peeling damage to the outer wall 5 and the like, and to prevent the durability of the housing material from being impaired.

The curl shape 19 has a downward slope toward the outdoor side 2 on the bottom side and has a predetermined projection length D larger than the projected duct 4 and a projected outside diameter dimension of the duct. Since the draining plate 18A having a width E smaller than A is integrally provided, the condensed water 17 and rainwater overflowing from the duct 4 are caught and dropped to a position far from the outer wall 5, and peeling damage of the outer wall 5 due to freezing. It is possible to prevent the deterioration of the durability of the housing material by preventing the occurrence of
Further, the draining plate 18A can be provided in a size as small as possible without sacrificing ventilation performance.

Further, the seal packing 7A is configured to protrude toward the outer wall 5 side from the outer wall side end of the flange portion 6A by a predetermined dimension, so that when the outdoor hood 12 is attached to the outer wall 5, the unevenness of the outer wall 5 is formed. As a backup material before caulking, it serves to close the gap and prevent rainwater from entering the outdoor hood 12.

(Embodiment 5) As shown in FIG. 11, the condensation water 17 and the like collected in the duct 4 is efficiently dropped to the opening 10 at the lower part of the hood 9 so as to be dropped at a position as far as possible from the outer wall 5. 11 is provided, and in the central part of the galleries 11,
It is configured such that the gullet 11 and the draining plate 18B are integrally provided.

In the above structure, the condensed water 1 in the duct 4
7 flows out downward from the end of the duct 4 on the outdoor 2 side, is caught by the water receiving plate 18B, and is dripped outdoors from a position as far as possible from the outer wall 5.

As described above, according to the outdoor hood 12 of the fifth embodiment of the present invention, since the draining plate 18B is provided integrally with the rattle 11, it is not necessary to separately provide a draining plate, and the number of parts is small. Therefore, the cost can be reduced.

(Embodiment 6) As shown in FIGS. 12 and 13, the seal ring 22A is made of a non-combustible material such as a foamed non-combustible material, a foamed ceramic material, or foamed concrete, and the outdoor hood 12A is infiltrated with rainwater or the like. Used as a prevention member.

In the above structure, the seal ring 22A made of a non-combustible material is used as a fireproof seal material that penetrates the fireproof compartment, and prevents rainwater and the like from entering the housing material such as the outer wall 5 from the outdoors 2. be able to.

As described above, according to the seal ring 22A of the sixth embodiment of the present invention, since the seal ring 22A is made of the non-combustible material, it can be used as the outdoor hood 12A penetrating the fireproof compartment, and The same action and effect as those of the seal ring 22 formed in the third embodiment can be obtained. In addition, there is no need to fill the space between the outer wall 5 and the incombustible duct 4A (wet construction method) on site with the incombustible mortar used in the conventional fireproof section.
It will be easier to construct.

[0051]

As is apparent from the above embodiments, according to the invention described in claim 1, it is possible to prevent the durability of the housing material from being impaired and the surrounding outer wall from being soiled. Further, the depth dimension of the product can be reduced to reduce the pressure loss, and the designability at the time of product installation can be improved. Further, it is possible to provide an outdoor hood that can accommodate ducts made of various materials.

According to the second aspect of the invention, since it can be performed only by inserting the outdoor hood into the duct through the seal packing which has rubber-like elasticity and flexibility and is closely fitted (dry method). Compared with the conventional caulking material (wet method), it can be performed more easily and reliably in a shorter time without gaps. Also, since the seal packing has rubber-like elasticity and flexibility against the slight difference in outer diameter due to the difference in duct material, it is not necessary to prepare each size, and ducts with different outer diameters are required. We can provide an outdoor hood that can also be used.

According to the third aspect of the present invention, it is possible to prevent the dripping water from flowing to the outer wall side and surely drop it to the outdoor side.

Further, according to the invention of claim 4, it is possible to receive the dew condensation water and discharge it to the outdoors from a position farther than the outer wall, and there is no aesthetic problem that the outer wall is polluted, and the dew condensation occurs in the cold district in the severe winter season. It is possible to prevent water from freezing and causing peeling damage to the outer wall, and to prevent the durability of the housing material from being impaired.

According to the fifth aspect of the present invention, the connection to the duct can be made with one touch by utilizing the outer peripheral surface of the duct, and in addition to the close fitting with the seal packing, sufficient mounting strength can be secured. The construction can also be simplified.

According to the sixth aspect of the invention, the duct can be inserted more smoothly.

Further, according to the invention of claim 7, the gap filling is more extensive than the conventional caulking material along the shape of the filled portion, so that the water tightness is improved and the water tightness is required. Make sure to do the construction.

Further, according to the invention described in claim 8, the watertightness is further improved, peeling damage of the outer wall due to freezing is prevented, and the durability of the housing material is prevented from being impaired.

Further, according to the invention as set forth in claim 9, when the outdoor hood is attached to the outer wall, the unevenness of the outer wall is followed, and as a backup material before caulking, it serves to close the gap and rainwater from the outdoor opening. It can prevent infiltration and prevent the durability of housing materials from being impaired.

According to the tenth aspect of the invention, the number of parts can be reduced and the cost can be reduced.

According to the eleventh aspect of the present invention, it can be used as a sealing material that penetrates the fireproof compartment.

[Brief description of drawings]

FIG. 1 is a perspective view showing a configuration of an outdoor hood according to a first embodiment of the present invention.

FIG. 2 is a sectional view showing a state before the outdoor hood is attached to an outer wall.

FIG. 3 is a cross-sectional view showing a state after the outdoor hood is attached to the outer wall.

FIG. 4 is a sectional view showing a state after the outdoor hood is attached to the outer wall.

FIG. 5 is a cross-sectional view showing a state after the outdoor hood according to the second embodiment of the present invention is attached to the outer wall.

FIG. 6 is a cross-sectional view showing a state before attachment to an outer wall of an outdoor hood according to a third embodiment of the present invention.

FIG. 7 is a sectional view showing a state after the outdoor hood is attached to the outer wall.

FIG. 8 is a partial cross-sectional perspective view showing the configuration of the seal ring of the outdoor hood.

FIG. 9 is a cross-sectional view showing a state before attachment to an outer wall of an outdoor hood according to a fourth embodiment of the present invention.

FIG. 10 is a sectional view showing a state after the outdoor hood is attached to the outer wall.

FIG. 11 is a sectional view showing a state after the outdoor hood according to the fifth embodiment of the present invention is attached to the outer wall.

FIG. 12 is a partial cross-sectional perspective view showing the configuration of the seal ring of the outdoor hood according to the sixth embodiment of the present invention.

FIG. 13 is a sectional view showing a state after the outdoor hood is attached to the outer wall.

FIG. 14 is a sectional view showing the structure of a conventional outdoor hood.

FIG. 15 is a partially enlarged sectional view of the outdoor hood.

[Explanation of symbols]

1 indoor 2 outdoors 3 Outdoor side opening 4 ducts 5 outer wall 6 Flange 6A flange 7 Seal packing 7A seal packing 7B seal packing 8 body 9 hood 10 openings 11 Garari 12 outdoor hoods 16 convex 18 Drainer 18A drain board 18B draining board 19 curl shape 22 Seal ring 22 Seal ring 22A seal ring 25 openings 26 Fixed claw Outer diameter of A duct B Inner diameter of inner part of seal packing C Projected duct length D Drain plate length E Drain board width

Claims (11)

[Claims] 1. A flange portion attached to an outer wall, the flange portion having an opening at approximately the center which communicates with an outdoor opening provided in the outer wall, and the inside and the outside when the flange portion is attached to the outer wall. A seal packing provided in the opening portion of the flange portion so that the inner peripheral portion of the opening formed substantially in the center is in close contact with the outer periphery of the duct that is communicated with and projects a predetermined length from the outdoor side opening portion. An outdoor hood including a main body made of and a hood provided in the main body and having an opening communicating with the duct. 2. The seal packing, if it is a duct having the same nominal diameter, has an inner diameter dimension of an inner circumferential portion which has flexibility so as to closely adhere to different outer diameter dimensions of the outer circumference of the duct regardless of the type of the duct. The outdoor hood according to claim 1, wherein the outdoor hood has a structure. 3. The outdoor hood according to claim 1, wherein when the duct and the seal packing come into close contact with each other, the convex portion formed on the inner peripheral portion of the seal packing faces outward with respect to the duct. . 4. A configuration in which a draining plate is provided below the opening of the flange portion, the draining plate having a width smaller than the outer diameter of the duct, and projecting beyond a predetermined length of the duct projected from the outdoor side opening. The outdoor hood according to claim 1, 2, or 3. 5. The outdoor hood according to claim 1, wherein the flange portion is provided with a plurality of fixing claws circumscribing the outer circumference of the duct. 6. The cross-sectional shape of the inner peripheral portion of the seal packing is
The outdoor hood according to claim 1 or 2, wherein the tip has a substantially doglegged shape so that the tip is in close contact with the outer circumference of the duct. 7. The outdoor hood according to claim 1, wherein instead of the seal packing, an expandable seal ring is provided all around the opening of the flange. 8. The curl shape projecting toward the outdoor side is formed all around the opening of the flange portion, and the drain side plate is formed by projecting the bottom side of the curl shape more than other portions. The outdoor hood according to 1 or 2. 9. The outdoor hood according to claim 8, wherein the seal packing is configured to project a predetermined dimension from the outer wall side end portion of the flange portion toward the outer wall. 10. The outdoor hood according to claim 1, wherein the opening of the hood is provided with a rattle, and the rattle and the draining plate are integrally provided. 11. The outdoor hood according to claim 7, wherein the seal ring is made of a nonflammable material.