Outdoor Food

Abstract

To suppress the scattering of water droplets, which dripped down to a lower-end blowout port due to the dew condensation on the inner surface of an air duct of an outdoor hood, together with exhaust emission.SOLUTION: A rear plate 10 having a penetration hole in a position of an exhaust port which is opened at an outer wall of a building is fixed along a wall face of the outer wall, a front plate 20a is arranged in a position opposing the rear plate via an air duct 6 therebetween, and exhaust discharged from the exhaust port is introduced to a downward blowout port 7 through the air duct. Also, a plurality of wind direction plates 30a which are aligned in parallel at prescribed intervals toward the front plate side from the rear plate side are arranged in advance in the blowout port which is opened at a lower end of the air duct, and the wind direction plates are inclined downward toward the front plate side from the rear plate side. Then, a separation plate 30b is erectly arranged in advance at the rear plate side via a clearance which is narrower than the prescribed interval with respect to a lower end of an opposing face 22a which opposes the exhaust port at an inner face of the air duct, and an extension plate 30c extending toward the front plate side from the blowout port is made to continue to a lower end side of the separation plate.SELECTED DRAWING: Figure 4

Description

[Technical Field]

[0001] The present invention relates to an outdoor hood that is installed to cover the exhaust port of a duct that opens into the exterior wall of a building. [Background technology]

[0002] Outdoor hoods are known that are installed to cover exhaust ports of ducts that open into the exterior wall of a building to prevent wind and rain from entering the exhaust port. An air passage is formed inside the outdoor hood, and exhaust air discharged from the exhaust port is generally guided along the air passage and blown out from an outlet at the bottom.

[0003] In such outdoor hoods, it has been proposed to attach a gallery with multiple parallel wind direction plates to the air outlet in order to direct the exhaust air blown out from the downward-facing air outlet away from the exterior wall (toward the front) (for example, Patent Document 1). The wind direction plates are inclined downward toward the front, so that the exhaust air passing between the wind direction plates is blown out toward the front. This prevents the exterior wall from getting dirty from the exhaust air. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Laid-Open No. 2011-190971 Summary of the Invention [Problem to be solved by the invention]

[0005] However, with the outdoor hood described above, when the exhaust air is humid, condensation occurs when the exhaust air hits the opposing surface of the air passage facing the exhaust port, and the water droplets that drip down the opposing surface to the outlet at the bottom end are blown forward by the exhaust air blowing out from the outlet, which can soil adjacent walls, etc.

[0006] This invention has been made in response to the above-mentioned problems in conventional technology, and aims to provide technology that can prevent water droplets that condense on the inner surface of the air passage of an outdoor hood and drip down to the outlet at the lower end from scattering forward along with the exhaust air. [Means for solving the problem]

[0007] In order to solve the above-mentioned problems, the outdoor hood of the present invention employs the following configuration: An outdoor hood is installed to cover an exhaust port of a duct opening into an exterior wall of a building, and has an internal air passage that guides exhaust air discharged from the exhaust port to a downward-facing air outlet, a rear plate having a through hole at the position of the exhaust port and fixed along a wall surface of the outer wall; a front panel disposed opposite to the rear panel with the air passage therebetween; a plurality of air direction plates that are installed at the air outlet that opens at a lower end of the air passage and are arranged in parallel at predetermined intervals from the rear panel side toward the front panel side; Equipped with The airflow direction plate is inclined downward from the rear plate side toward the front plate side, a separation plate provided upright on the rear plate side with a gap narrower than the predetermined distance from a lower end of an opposing surface of the inner surface of the air passage that faces the exhaust port, An extension plate extending from the air outlet toward the front plate is continuous with the lower end of the separation plate. It is characterized by:

[0008] In this outdoor hood of the present invention, even if the exhaust air discharged from the exhaust port hits the opposing surface of the air passage and condenses, the water droplets that drip down the opposing surface to the outlet at the lower end are received on the extension plate through the gap between the lower end of the opposing surface and the separation plate. In this way, the separation plate separates the water droplets dripping from the opposing surface from the main flow of exhaust air blown out from the outlet, making it possible to prevent water droplets from scattering along with the exhaust air from the outlet toward the front plate (away from the exterior wall). Furthermore, because the gap between the lower end of the opposing surface and the separation plate is narrower than the predetermined distance between the air direction plates, the amount of exhaust air passing through is reduced, making it possible to prevent water droplets from scattering on the extension plate due to the exhaust air flowing in through the gap.

[0009] In the outdoor hood of the present invention described above, the end of the extension plate on the front plate side may be spaced apart from the front plate to provide a gap.

[0010] This allows the water droplets on the extension plate to be moved away from the air outlet toward the front plate, allowing them to drip and drain through the gap between the front plate and the extension plate, where the volume of exhaust air blown out is reduced compared to the air outlet.As a result, it is possible to eliminate the need to periodically remove water droplets that have accumulated on the extension plate.

[0011] In the outdoor hood of the present invention described above, a sound-absorbing material of a predetermined thickness that absorbs sound in the air duct may be laid on the air duct side of the front panel, and the air duct side surface of the sound-absorbing material may form the opposing surface facing the exhaust port.

[0012] In this way, the thickness of the sound-absorbing material used to absorb sound in the air duct can be used to ensure the distance from the separation plate to the end (tip) of the extension plate on the front plate side, so that water droplets on the extension plate can be moved away from the air outlet and drained by dripping through the gap between the front plate and the tip of the extension plate without adding any other components.

[0013] In such an outdoor hood of the present invention, the lower end of the front plate may be positioned lower than the end of the extension plate on the front plate side.

[0014] In this way, when water droplets on the extension plate fall through the gap between the front plate and the tip of the extension plate due to the exhaust air blowing in from the gap between the lower end of the opposing surface and the separation plate, they hit the front plate and fall downward, making it possible to prevent water droplets from scattering away from the outer wall.

[0015] In addition, in such an outdoor hood of the present invention, a blocking portion may be protruded from either the extension plate or the front plate, which abuts against the other to block part of the gap between the front plate and the tip of the extension plate.

[0016] In this way, even if there is a gap between the front plate and the tip of the extension part, the front plate is supported by the blocking part from the extension plate side, so deformation of the front plate can be suppressed. Also, by positioning the blocking part, it is possible to adjust the location where water droplets on the extension plate fall through the gap between the front plate and the tip of the extension plate.

[0017] Furthermore, in such an outdoor hood of the present invention, multiple wind deflectors are formed by cutting and raising a plate-shaped member that is installed to cover the air outlet, and of the multiple wind deflectors, the frontmost wind deflector closest to the front plate constitutes the separation plate, and the part of the plate-shaped member that is closer to the front plate than the frontmost wind deflector constitutes the extension plate.

[0018] By integrating multiple wind direction plates, separation plates, and extension plates in this way, the number of parts can be reduced, and it is possible to simplify the assembly work of the outdoor hood, as it is only necessary to cover the air outlet and install a plate-shaped member. [Brief explanation of the drawings]

[0019] [Figure 1] FIG. 2 is an exploded perspective view showing a method for installing the outdoor hood 5 of the present embodiment. [Figure 2] FIG. 2 is a perspective view showing the shape of a cover sound absorbing material 22 of the present embodiment. [Figure 3] 2 is a vertical cross-sectional view showing the internal structure of an outdoor hood 5 of this embodiment installed on the exterior wall 1 of a building. FIG. [Figure 4]FIG. 2 is a vertical cross-sectional view showing the configuration of the gallery 30 of the present embodiment. [Figure 5] 2 is an enlarged perspective view showing the lower end side of the air passage 6 of the present embodiment. FIG. [Figure 6] 2 is an enlarged perspective view of a gallery 30 installed at the lower end of the outdoor hood 5 of this embodiment. FIG. [Figure 7] FIG. 4 is a vertical cross-sectional view showing the configuration of an outdoor hood 5 of a first modified example. [Figure 8] 10 is a vertical cross-sectional view showing the internal structure of an outdoor hood 5 of a second modified example. FIG. DETAILED DESCRIPTION OF THE INVENTION

[0020] FIG. 1 is an exploded perspective view showing a method for installing an outdoor hood 5 according to this embodiment. In the illustrated example, a duct 3 is inserted from the indoor side into a duct hole 2 provided in an exterior wall 1 of a building, and an exhaust port 3a at the end of the duct 3 opens into the exterior wall 1. When installing the outdoor hood 5 to cover this exhaust port 3a, a base plate 10 is first fixed along the surface of the exterior wall 1. The base plate 10 is made of sheet metal and has a through-hole 10a at the position of the exhaust port 3a. After aligning the exhaust port 3a with the through-hole 10a, the base plate 10 is first fixed at two locations on the upper left and right sides using fasteners such as screws 11. The base plate 10 in this embodiment corresponds to the "rear plate" of the present invention. Furthermore, the fasteners are not limited to screws 11, and may be nuts for anchors or the like.

[0021] The hood cover 20 is then attached to the base plate 10. The hood cover 20 is formed from sheet metal and has a front surface 20a positioned opposite the base plate 10, left and right side surfaces 20b and 20c located on both the left and right sides of the front surface 20a, and a top surface 20d located on the upper side, forming a roughly rectangular box shape with the surface facing the base plate 10 and the bottom surface open. The front surface 20a of the hood cover 20 in this embodiment corresponds to the "front panel" of the present invention.

[0022] 1, the gallery 30 is shown separated from the hood cover 20, but is fixed in advance to cover the underside of the hood cover 20. The gallery 30 has multiple air direction vanes 30a arranged in parallel, and is joined to the left and right side surfaces 20b, 20c of the hood cover 20 by spot welding or screws (not shown). Details of the gallery 30 of this embodiment will be described later using a separate drawing.

[0023] Furthermore, a groove 21 extending in the left-right direction is formed on the top surface 20d of the hood cover 20 by recessing it from the inside to the outside. On the other hand, a flange 12 is provided on the upper end of the base plate 10 by bending it toward the hood cover 20, and a ridge 13 extending in the left-right direction is formed by protruding upward from this flange 12.

[0024] When attaching the hood cover 20 to the base plate 10, the upper part is positioned by fitting the protrusions 13 of the flange 12 into the grooves 21 on the upper surface 20d, and then the lower part is aligned and fixed to the exterior wall 1 with fixing devices such as screws 11. In this embodiment, the gallery 30, which is fixed to the hood cover 20 in advance, is fastened together with the base plate 10 at two locations on the left and right sides of the lower part with screws 11.

[0025] When the hood cover 20 is attached in this manner, the surface of the base plate 10 opposite the exterior wall 1 is covered by the hood cover 20, and an air passage (described later) is formed between the base plate 10 and the front surface 20a of the hood cover 20, and the exhaust air discharged from the exhaust port 3a passes through the air passage and is guided to the air outlet at the lower end. The exhaust air blown out from the air outlet is then directed in a direction away from the exterior wall 1 (toward the front) by passing between the air direction plates 30a of the gallery 30.

[0026] Furthermore, in this embodiment, a base sound-absorbing material 14 that absorbs sound is laid on the surface of the base plate 10 facing the hood cover 20 (air passage side). The base sound-absorbing material 14 has ventilation holes 14a formed at the positions of the through holes 10a of the base plate 10, and the diameter of the ventilation holes 14a is slightly larger than the diameter of the through holes 10a. The base sound-absorbing material 14 is then fixed to the base plate 10 using adhesive, double-sided tape, or the like. Similarly, a cover sound-absorbing material 22 that absorbs sound is laid on the inner surface of the hood cover 20 and fixed using adhesive, double-sided tape, or the like.

[0027] 2 is a perspective view showing the shape of the cover sound-absorbing material 22 of this embodiment. The figure shows the state before the cover sound-absorbing material 22 is fixed to the hood cover 20. As shown in the figure, the cover sound-absorbing material 22 is composed of a front portion 22a corresponding to the front surface 20a of the hood cover 20 and an upper surface portion 22b corresponding to the upper surface 20d. The hood cover 20 is attached to the base plate 10 with the cover sound-absorbing material 22 fixed to the inner surface. Note that the cover sound-absorbing material 22 of this embodiment does not have side surfaces corresponding to the left and right side surfaces 20b, 20c of the hood cover 20, but side surfaces corresponding to the left and right side surfaces 20b, 20c may be provided.

[0028] FIG. 3 is a vertical cross-sectional view showing the internal structure of the outdoor hood 5 of this embodiment installed on the exterior wall 1 of a building. The figure shows a cross section of the outdoor hood 5 cut along a vertical plane perpendicular to the exterior wall 1. In the illustrated example, the through hole 10a of the base plate 10 is larger than the exhaust port 3a of the duct 3, and the through hole 10a and the exhaust port 3a are connected by an adapter 15. The adapter 15 is cylindrical and has a smaller diameter than the duct 3, and one end is provided with a flange portion whose outer diameter is larger than the through hole 10a. The other end of the adapter 15 is inserted through the through hole 10a and the exhaust port 3a, and a sealant 16 is interposed between the inner periphery of the duct 3 and the cylindrical outer periphery of the adapter 15. In this embodiment, a caulking material is used as the sealant 16. However, this is not limited to this, and any other suitable material, such as an O-ring, can be used as long as it has a sealing function.

[0029] When the hood cover 20 is attached to the base plate 10, the aforementioned air passage 6 is formed inside the outdoor hood 5. The exhaust air discharged from the exhaust port 3a of the duct 3 flows into the outdoor hood 5 through the through-holes 10a, is guided along the air passage 6, and is blown out from the air outlet 7 at the lower end. A gallery 30 is installed to cover the downward-opening air outlet 7, and multiple air direction plates 30a are formed in parallel on the gallery 30. The air direction plates 30a are inclined downward from the base plate 10 side toward the front surface 20a of the hood cover 20, and the exhaust air that passes between the air direction plates 30a is blown out in a direction away from the exterior wall 1 (toward the front). This prevents the exterior wall 1 from becoming dirty with the exhaust air.

[0030] In addition, a dripping board 17 is provided at the lower end of the base plate 10, with an inclination that descends toward the front surface 20a of the hood cover 20. This dripping board 17 directs water droplets, such as rainwater, dripping from the outdoor hood 5 away from the exterior wall 1, thereby preventing the exterior wall 1 from becoming soiled.

[0031] Furthermore, in the outdoor hood 5, noise may leak from the indoors to the outdoors via the duct 3 and the air passage 6. For example, if noise is generated by a clothes dryer or a heater connected upstream of the duct 3, the noise travels along with the exhaust air through the duct 3 and the air passage 6 and leaks out through the air outlet 7. Conversely, outdoor noise may reverberate indoors from the air outlet 7 through the air passage 6 and the duct 3. To reduce such noise, the base sound-absorbing material 14 is installed on the surface of the base plate 10 facing the air passage 6, as described above, and the cover sound-absorbing material 22 is installed on the inner surface of the hood cover 20 (the inside of the front surface 20a and the top surface 20d). That is, the air passage 6 is formed between the base sound-absorbing material 14 and the front surface 22a of the cover sound-absorbing material 22. In this embodiment, the surface of the front surface 22a of the cover sound-absorbing material 22 facing the air passage 6 faces the exhaust port 3a, and therefore corresponds to the "facing surface" in the present invention.

[0032] Noise emitted together with the exhaust air from the exhaust port 3a of the duct 3 passes through the through-hole 10a of the base plate 10 and the vent hole 14a of the base sound-absorbing material 14 and enters the air passage 6. First, the noise hits the front surface 22a of the cover sound-absorbing material 22 that faces the exhaust port 3a, and a portion of the noise is absorbed within the front surface 22a. The noise reflected by the front surface 22a of the cover sound-absorbing material 22 then hits the base sound-absorbing material 14, and a portion of the noise is absorbed within the base sound-absorbing material 14. The noise reflected by the base sound-absorbing material 14 again hits the front surface 22a of the cover sound-absorbing material 22, and a portion of the noise is absorbed within the front surface 22a. By repeating this process, the noise leaking from the air outlet 7 is reduced.

[0033] Because noise absorption and reflection in air passage 6 occurs mainly at front surface 22a of cover sound-absorbing material 22 and base sound-absorbing material 14, cover sound-absorbing material 22 of this embodiment does not have the side surfaces corresponding to left and right side surfaces 20b, 20c of hood cover 20, as described above. By omitting the side surfaces of cover sound-absorbing material 22, it is possible to ensure the cross-sectional area of ​​air passage 6 while avoiding an increase in the size of outdoor hood 5.

[0034] Porous materials such as glass wool and urethane foam are used for the base sound-absorbing material 14 and the cover sound-absorbing material 22. When sound enters and diffuses into a porous material, the air vibrations are transmitted to the air in the pores within the material, and friction and viscous resistance on the surfaces of the pores convert part of the sound energy into heat energy, producing a sound-absorbing effect.

[0035] In this type of outdoor hood 5, when humid exhaust air is discharged from the exhaust port 3a of the duct 3, condensation forms on the inner surface of the air passage 6. To prevent the condensation from getting on the inside of the air passage 6, the base sound-absorbing material 14 and the cover sound-absorbing material 22 are wrapped in a water-repellent wrapping material such as aluminum film. In particular, the inner surface of the front surface 22a of the cover sound-absorbing material 22 facing the exhaust port 3a is prone to condensation due to direct contact with the exhaust air discharged from the exhaust port 3a. Water droplets that run down the inner surface of the front surface 22a to the air outlet 7 at the lower end are blown away from the exterior wall 1 (toward the front) by the exhaust air blown out from the air outlet 7, and may soil adjacent walls, etc. Therefore, the outdoor hood 5 of this embodiment employs a gallery 30 configured as follows to prevent water droplets from scattering forward from the air outlet 7.

[0036] FIG. 4 is a vertical cross-sectional view showing the configuration of the gallery 30 of this embodiment. The figure shows a cross section of the outdoor hood 5 cut along a vertical plane perpendicular to the exterior wall 1, with an enlarged view of the area around the lower air outlet 7. The drip board 17 at the lower end of the base plate 10 is not shown. The gallery 30 of this embodiment is a plate-shaped member installed to cover the air outlet 7 at the lower end of the air passage 6. Multiple wind direction plates 30a formed by cutting and raising are arranged in parallel at a predetermined interval G1 from the base plate 10 side toward the front surface 20a of the hood cover 20. Each wind direction plate 30a is inclined downward from the base plate 10 side toward the front surface 20a of the hood cover 20.

[0037] Of these multiple air direction plates 30a, the one closest to the front surface 20a of the hood cover 20 constitutes the separation plate 30b. Separation plate 30b is erected on the base plate 10 side relative to the lower end of the inner surface of the front surface portion 22a of the cover sound absorbing material 22, with a gap G2 narrower than the predetermined gap G1. Furthermore, a substantially horizontal extension plate 30c continues from the lower end of separation plate 30b toward the front surface 20a of the hood cover 20. In other words, the portion of the gallery 30, which is a plate-shaped member, closer to the front surface 20a of the hood cover 20 than separation plate 30b constitutes the extension plate 30c.

[0038] The extension plate 30c is arranged with its end (tip) on the front surface 20a side of the hood cover 20 separated from the front surface 20a, thereby providing a gap G3 between the front surface 20a of the hood cover 20 and the tip of the extension plate 30c. The gap G3 in this embodiment is wider than the gap G2 between the front surface 22a of the cover sound-absorbing material 22 and the separation plate 30b, and narrower than the predetermined distance G1 between the airflow direction plates 30a.

[0039] 5 is an enlarged perspective view of the lower end of the air passage 6 of this embodiment. In the figure, the outdoor hood 5 is cut along a vertical plane perpendicular to the exterior wall 1 so that the inner surface of the front portion 22a of the cover sound-absorbing material 22 can be seen, and the water dripping board 17 is not shown. As described above, the exhaust air discharged from the exhaust port 3a is guided through the air passage 6 to the downward-facing air outlet 7, and is blown out in a direction away from the exterior wall 1 (toward the front) by passing between the air direction plates 30a of the gallery 30 that covers the air outlet 7. The open arrows in the figure schematically represent the flow of the exhaust air.

[0040] Furthermore, when humid exhaust air is discharged from the exhaust port 3a, the exhaust air may hit the inner surface of the front portion 22a of the sound-absorbing cover material 22, causing condensation. In the outdoor hood 5 of this embodiment, water droplets resulting from condensation drip down the inner surface of the front portion 22a of the sound-absorbing cover material 22 to the air outlet 7 at the lower end, as indicated by the dashed arrow in the figure, and then pass through the gap G2 between the lower end of the front portion 22a and the separation plate 30b and are received on the extension plate 30c. In this way, the water droplets dripping from the front portion 22a of the sound-absorbing cover material 22 and the main flow of exhaust air blown out from the air outlet 7 are separated by the separation plate 30b of the gallery 30, making it possible to prevent water droplets from scattering forward along with the exhaust air.

[0041] Furthermore, the gap G2 between the lower end of the front portion 22a and the separation plate 30b is narrower than the gap between the airflow direction vanes 30a (predetermined distance G1), so the amount of exhaust air passing through is reduced, making it possible to prevent water droplets on the extension plate 30c from being scattered by the exhaust air flowing in through the gap G2.

[0042] Furthermore, water droplets on the extension plate 30c can be moved away from the air outlet 7 toward the front surface 20a of the hood cover 20 and drained through a gap G3 between the front surface 20a and the tip of the extension plate 30c. Because the volume of exhaust air blown out from this gap G3 is reduced compared to the air outlet 7, water droplets dripping from the gap G3 can be prevented from scattering due to the exhaust air. Furthermore, in the outdoor hood 5 of this embodiment, a portion of the gap G3 is blocked by a blocking portion 30d protruding from the gallery 30.

[0043] FIG. 6 is an enlarged perspective view of the gallery 30 installed at the lower end of the outdoor hood 5 of this embodiment. The figure shows the gallery 30 as viewed from below. As described above, the gallery 30, which is a plate-shaped member, has multiple parallel wind direction vanes 30a formed by cutting and raising. Each wind direction vane 30a is divided into left and right halves by a beam 30e supporting the center. The wind direction vane 30a closest to the front surface 20a of the hood cover 20 constitutes a separation plate 30b, and a substantially horizontal extension plate 30c continues from the lower end of the separation plate 30b toward the front surface 20a. A blocking portion 30d protrudes from the tip of this extension plate 30c on an extension line of the beam 30e. The tip of the blocking portion 30d abuts against the front surface 20a of the hood cover 20, thereby partially blocking the gap G3 between the front surface 20a and the tip of the extension plate 30c.

[0044] In this way, the blocking portion 30d abuts against the extension plate 30c and supports the front surface 20a of the hood cover 20, thereby ensuring the strength of the front surface 20a even if a gap G3 is provided between the front surface 20a and the extension plate 30c. Furthermore, the position of the blocking portion 30d can be selected appropriately, and the location where water droplets on the extension plate 30c fall through the gap G3 can be adjusted by the position of the blocking portion 30d.

[0045] As described above, in the outdoor hood 5 of this embodiment, the separation plate 30b is erected on the base plate 10 side with a gap G2 interposed between the lower end of the inner surface of the front portion 22a of the cover sound-absorbing material 22, and the substantially horizontal extension plate 30c continues from the air outlet 7 toward the front surface 20a of the hood cover 20 at the lower end side of the separation plate 30b. In this way, even if the exhaust air discharged from the exhaust port 3a hits the inner surface of the front portion 22a of the cover sound-absorbing material 22 and condenses, the water droplets that drip down the inner surface of the front portion 22a to the air outlet 7 at the lower end are received on the extension plate 30c through the gap G2 and are separated from the main flow of exhaust air blown out from the air outlet 7 by the separation plate 30b, making it possible to prevent the water droplets from scattering forward (away from the exterior wall 1) together with the exhaust air. Furthermore, by making the gap G2 narrower than the predetermined distance G1 between the airflow direction plates 30a, the amount of exhaust air passing through can be reduced, thereby making it possible to suppress the scattering of water droplets on the extension plate 30c due to the exhaust air flowing in through the gap G2.

[0046] Furthermore, in the outdoor hood 5 of this embodiment, a gap G3 is provided between the front surface 20a of the hood cover 20 and the tip of the extension plate 30c. This allows water droplets on the extension plate 30c to be moved away from the air outlet 7 and drip down and drained from the gap G3, where the volume of exhaust air blown out is reduced compared to the air outlet 7. As a result, it is possible to save the effort of periodically removing water droplets that remain accumulated on the extension plate 30c.

[0047] Furthermore, in the outdoor hood 5 of this embodiment, a blocking portion 30d is provided protruding from the tip of the extension plate 30c, and this blocking portion 30d abuts against the front surface 20a of the hood cover 20, thereby blocking a portion of the gap G3 between the front surface 20a and the tip of the extension plate 30c. In this way, even if the gap G3 is provided, the front surface 20a is supported by the abutment of the blocking portion 30d from the extension plate 30c side, so deformation of the front surface 20a of the hood cover 20 can be suppressed. In addition, by arranging the blocking portion 30d, it is possible to adjust the location where water droplets fall on the extension plate 30c through the gap G3.

[0048] Furthermore, in the outdoor hood 5 of this embodiment, multiple wind direction plates 30a are formed by cutting and raising on the gallery 30, a plate-like member that is installed to cover the air outlet 7. The wind direction plate 30a closest to the front surface 20a of the hood cover 20 forms the separation plate 30b, and the portion of the plate-like member closer to the front surface 20a of the hood cover 20 than the separation plate 30b forms the extension plate 30c. In this way, the gallery 30 that integrates multiple wind direction plates 30a, separation plate 30b, and extension plate 30c can reduce the number of parts, and because the gallery 30 only needs to be installed to cover the air outlet 7, the assembly work of the outdoor hood 5 is not complicated.

[0049] The outdoor hood 5 of the above-described embodiment also has the following variations. The following describes the variations, focusing on the differences from the above-described embodiment. In the description of the variations, the same components as those in the above-described embodiment are given the same reference numerals and will not be described again.

[0050] Fig. 7 is a vertical cross-sectional view showing the configuration of the outdoor hood 5 of the first modified example. The figure shows a cross section of the outdoor hood 5 cut along a vertical plane perpendicular to the exterior wall 1, with the lower end side enlarged. In the outdoor hood 5 of the embodiment described above, the lower end of the front surface 20a of the hood cover 20 was located at approximately the same height as the tip of the extension plate 30c of the gallery 30 (see Fig. 4). In contrast, in the outdoor hood 5 of the first modified example, as shown in Fig. 7, the lower end of the front surface 20a of the hood cover 20 is located lower than the tip of the extension plate 30c of the gallery 30.

[0051] In this first variant outdoor hood 5, exhaust air flowing in from the gap G2 between the lower end of the front portion 22a of the cover sound-absorbing material 22 and the separation plate 30b is blown against the water droplets on the extension plate 30c, causing them to fall downward when they hit the front surface 20a as they fall from the gap G3 between the front surface 20a of the hood cover 20 and the tip of the extension plate 30c, thereby making it possible to prevent water droplets from scattering forward.

[0052] Furthermore, in the outdoor hood 5 of the embodiment described above, the sound-absorbing cover material 22 was laid on the inner surface of the hood cover 20. However, the present invention can also be applied to an outdoor hood 5 in which the sound-absorbing cover material 22 is not laid on the inner surface of the hood cover 20. Fig. 8 is a vertical cross-sectional view showing the internal structure of the outdoor hood 5 of a second modified example. The figure shows a cross-section of the outdoor hood 5 cut along a vertical plane perpendicular to the exterior wall 1, with the lower end side enlarged.

[0053] As shown in the drawings, in the outdoor hood 5 of the second modified example, the cover sound-absorbing material 22 is not laid inside the front surface 20a of the hood cover 20, and instead an air path plate 23 is installed. The air path plate 23 has an inclined surface 23a that slopes downward from the front surface 20a of the hood cover 20 toward the base plate 10, and a vertical surface 23b that bends downward approximately perpendicularly from the lower end side of the inclined surface 23a, and is joined by spot welding or the like with the upper end side of the inclined surface 23a in contact with the front surface 20a of the hood cover 20. In other words, the lower end side of the air path 6 forms the front surface 20a side of the hood cover 20 by the air path plate 23.

[0054] The separation plate 30b of the gallery 30 is erected on the base plate 10 side with a gap G2 narrower than the predetermined interval G1 between the air direction plates 30a relative to the lower end of the vertical surface 23b of the air passage plate 23. A substantially horizontal extension plate 30c continues from the lower end side of the separation plate 30b toward the front surface 20a of the hood cover 20.

[0055] In the outdoor hood 5 of the second modified example, the exhaust air discharged from the exhaust port 3a hits the front surface 20a of the hood cover 20 and condenses, and the resulting water droplets drip from the front surface 20a along the inclined surface 23a and vertical surface 23b of the air path plate 23 to the air outlet 7 at the lower end, and then pass through the gap G2 between the lower end of the vertical surface 23b and the separation plate 30b and are received on the extension plate 30c. Therefore, as in the above-described embodiment, it is possible to prevent water droplets from scattering forward (away from the exterior wall 1) together with the exhaust air from the air outlet 7.

[0056] However, if the cover sound-absorbing material 22 is laid on the inner surface of the hood cover 20 as in the above-mentioned embodiment, the thickness of the cover sound-absorbing material 22 can be used to ensure the distance from the separation plate 30b to the tip of the extension plate 30c, so that water droplets on the extension plate 30c can be moved away from the air outlet 7 and allowed to drip and be drained through the gap G3 between the front surface 20a of the hood cover 20 and the tip of the extension plate 30c without adding any other components (air path plate 23).

[0057] The above describes the outdoor hood 5 of this embodiment and modified examples, but the present invention is not limited to the above embodiments and modified examples, and can be implemented in various forms within the scope of the gist of the present invention.

[0058] For example, in the embodiment described above, of the multiple wind direction plates 30a formed in the gallery 30, the one closest to the front surface 20a of the hood cover 20 constitutes the separation plate 30b, and the separation plate 30b and the other wind direction plates 30a are integrated. However, the separation plate 30b may be provided separately from the wind direction plate 30a.

[0059] In the above-described embodiment, the separation plate 30b is parallel to the airflow direction plate 30a and is inclined downward from the base plate 10 side toward the front surface 20a side of the hood cover 20. However, the separation plate 30b does not have to be parallel to the airflow direction plate 30a and may, for example, be upright.

[0060] In the above-described embodiment, the extension plate 30c is substantially horizontal. However, the extension plate 30c is not limited to being horizontal, and may be gently inclined downward from the separation plate 30b side toward the front surface 20a side of the hood cover 20. In this way, water droplets on the extension plate 30c can be guided toward the front surface 20a side (gap G3) at an incline. Alternatively, the extension plate 30c may be inclined downward from the center toward both left and right sides. In this way, water droplets on the extension plate 30c can be guided to the left and right ends of the gap G3 and dropped.

[0061] In the above-described embodiment, the blocking portion 30d protruding from the extension plate 30c of the gallery 30 abuts against the front surface 20a of the hood cover 20. However, on the contrary, a blocking portion protruding from the front surface 20a of the hood cover 20 toward the base plate 10 may be provided, and this blocking portion may abut against the extension plate 30c of the gallery 30. [Explanation of symbols]

[0062] 1...exterior wall, 2...duct hole, 3...duct, 3a...exhaust port, 5...outdoor hood, 6...air duct, 7...air outlet, 10...base plate, 10a...through hole, 11...Screw, 12...Flange, 13...Protrusion, 14...base sound absorbing material; 14a...ventilation hole; 15...adapter; 16...Sealing material, 17...Draining board, 20...Hood cover, 20a...front, 20b...left side, 20c...right side, 20d...top surface, 21...groove, 22...cover sound absorbing material, 22a...Front part, 22b...Top part, 23...Air tract board, 23a...inclined surface, 23b...vertical surface, 30...gallery, 30a...Wind direction plate, 30b...Separation plate, 30c...Extension plate, 30d...Occluded part, 30e...Beam.

Claims

1. An outdoor hood is installed to cover an exhaust port of a duct opening into an exterior wall of a building, and has an internal air passage that guides exhaust air discharged from the exhaust port to a downward-facing air outlet, a rear plate having a through hole at the position of the exhaust port and fixed along a wall surface of the outer wall; a front panel disposed opposite to the rear panel with the air passage therebetween; a plurality of air direction plates that are installed at the air outlet that opens at a lower end of the air passage and are arranged in parallel at predetermined intervals from the rear panel side toward the front panel side; Equipped with The airflow direction plate is inclined downward from the rear plate side toward the front plate side, a separation plate that is erected on the rear plate side with a gap narrower than the predetermined distance from a lower end of an opposing surface of an inner surface of the air passage that is located between the front plate and the rear plate and that faces the exhaust port; An extension plate is continuous with the lower end side of the separation plate, and extends from the air outlet toward the front plate to a position closer to the front plate than the lower end of the opposing surface. An outdoor hood characterized by:

2. The outdoor hood of claim 1, The end of the extension plate on the front plate side is spaced from the front plate by a gap. An outdoor hood characterized by:

3. The outdoor hood according to claim 2, a sound-absorbing material having a predetermined thickness is laid on the air passage side of the front panel to absorb sound in the air passage; The surface of the sound absorbing material on the air passage side constitutes the opposing surface that faces the exhaust port. An outdoor hood characterized by:

4. The outdoor hood according to claim 2 or 3, The lower end of the front plate is located lower than the end of the extension plate on the front plate side. An outdoor hood characterized by:

5. The outdoor hood according to any one of claims 2 to 4, A blocking portion is provided on either the extension plate or the front plate so as to protrude and block a part of the gap by contacting the other plate. An outdoor hood characterized by:

6. The outdoor hood according to any one of claims 1 to 5, The plurality of wind direction plates are formed by cutting and raising a plate-shaped member that is installed to cover the air outlet, Among the plurality of wind direction plates, the front wind direction plate closest to the front plate constitutes the separation plate, A portion of the plate-shaped member closer to the front plate than the front wind direction plate constitutes the extension plate. An outdoor hood characterized by:

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