Ventilation control device

Abstract

To perform ventilation while securing further cut-off performance.SOLUTION: A ventilation control device 50 for performing ventilation control of a vent hole 40 which is opened in a side face of a middle-bone attachment 31 to communicating with the inside and outside of a room includes: a first ventilation control part 50A where a plurality of vertical louver materials 51 extending up and down are arranged right and left in parallel; and a second ventilation control part 50B where a plurality of lateral louver materials 55 extending right and left are arranged vertically in parallel. The first ventilation control part 50A and the second ventilation control part 50B are provided in parallel at positions of overlap with an opening of the vent hole 40 in a ventilation direction. On each of the vertical louver materials 51, a regulation member 51c is provided.SELECTED DRAWING: Figure 9

Description

[Technical Field]

[0001] The present invention relates to an airflow control device that controls airflow through an air vent that is opened on the side of a wall so as to connect the inside and outside of a room. [Background technology]

[0002] Some walls, such as curtain walls, are provided with air vents that connect the inside and outside of the room. At the opening of the air vent, multiple vertical louver materials extending up and down are arranged in parallel on the left and right sides, so that even while the room is being ventilated, outside water such as rainwater is prevented from entering the room (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Publication No. 2024-107 Summary of the Invention [Problem to be solved by the invention]

[0004] However, in recent years, unexpectedly strong storms have been observed, which has led to a demand for a ventilation control device that can ventilate while ensuring even greater watertightness.

[0005] In view of the above circumstances, an object of the present invention is to provide a ventilation control device that can perform ventilation while further ensuring watertightness. [Means for solving the problem]

[0006] In order to achieve the above-mentioned object, the ventilation control device of the present invention is a ventilation control device that controls the ventilation of an air vent opened on the side of a wall to connect the inside and outside of the room, and is characterized in that it comprises a first ventilation control unit in which multiple vertical louver materials extending up and down are arranged in parallel on the left and right, and a second ventilation control unit in which multiple horizontal louver materials extending left and right are arranged in parallel on the top and bottom, the first ventilation control unit and the second ventilation control unit are arranged side by side in the ventilation direction at a position overlapping the opening of the air vent, and the vertical louver material is provided with a regulating member that regulates the flow of fluid toward the inside of the room. [Effects of the Invention]

[0007] According to the present invention, the first ventilation control section is made of vertical louvers with restricting members, which prevents water from entering the room. Furthermore, the second ventilation control section is made of horizontal louvers extending in different directions, which are arranged in parallel in the ventilation direction. Therefore, even if water from the outside, such as rainwater, passes through the ventilation control section on the outside, the ventilation control section on the inside can prevent water from entering the room. This allows ventilation with improved watertightness. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a diagram showing the appearance of a building equipped with a ventilation curtain wall to which an air ventilation control device according to an embodiment of the present invention is applied, as viewed from the outside of the building. [Figure 2] This is an appearance diagram of the ventilation curtain wall applied to the building shown in Figure 1. [Figure 3] FIG. 2 is a vertical cross-sectional view of the building shown in FIG. 1, cut at a panel portion. [Figure 4] FIG. 2 is a vertical cross-sectional view of the building shown in FIG. 1, taken at a bay window portion. [Figure 5] FIG. 2 is a cross-sectional view of the building shown in FIG. 1. [Figure 6] FIG. 2 is a perspective view of the upper part of the ventilation curtain wall of the building shown in FIG. 1, viewed from the outside of the room. [Figure 7]FIG. 2 is a perspective view of the upper part of the ventilation curtain wall of the building shown in FIG. 1, with a part cut away, as seen from the outside of the room. [Figure 8] 3 is a cross-sectional view of a main part of the ventilation curtain wall shown in FIG. 2, taken at the position of the ceiling space. [Figure 9] 3 is a cross-sectional view of a main part of the ventilation curtain wall shown in FIG. 2, taken at the position of the indoor space. FIG. [Figure 10] FIG. 3 is a cross-sectional view of an upper frame applied to the ventilation curtain wall shown in FIG. 2. [Figure 11] 3 is a cross-sectional view of the lower frame applied to the ventilation curtain wall shown in FIG. 2, broken at the panel portion. [Figure 12] FIG. 3 is a cross-sectional view of the left vertical frame applied to the ventilation curtain wall shown in FIG. 2. [Figure 13] FIG. 3 is a cross-sectional view of the right vertical frame applied to the ventilation curtain wall shown in FIG. 2. [Figure 14] This shows the vertical ribs to be applied to the ventilation curtain wall shown in Figure 2, where (a) is a cross-sectional view cut at the ceiling space, and (b) is an exploded cross-sectional view cut at the indoor space. [Figure 15] 3 is a cross-sectional view of the lower frame applied to the ventilation curtain wall shown in FIG. 2, broken at the bay window portion. [Figure 16] 3 is a cross-sectional view of an upper frame attachment applied to the ventilation curtain wall shown in FIG. 2. FIG. [Figure 17] 3 is a vertical cross-sectional view of the ventilation curtain wall shown in FIG. 2 as seen from the room side in the X direction. FIG. [Figure 18] FIG. 3 is a vertical cross-sectional view of the ventilation curtain wall shown in FIG. 2 as seen from the outside of the room in the Y direction. [Figure 19] FIG. 18 is an enlarged view of a main part of FIG. [Figure 20] FIG. 19 is an enlarged view of a main part of FIG. 18. [Figure 21] 3 is an exploded cross-sectional plan view of a ventilation control device applied to the ventilation curtain wall shown in FIG. 2. FIG. [Figure 22]This shows the ventilation hole portion of the ventilation curtain wall shown in Figure 2, where (a) is a cross-sectional plan view of the ventilation control device in the middle of being installed, (b) is a cross-sectional plan view immediately after the mounting wall portion of the ventilation control device has been abutted against the abutting surfaces of the vertical center rib and center rib attachment, and (c) is a cross-sectional plan view of the ventilation control device attached to the vertical center rib and center rib attachment by screwing in the screw members. DETAILED DESCRIPTION OF THE INVENTION

[0009] DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the ventilation control device according to the present invention will be described in detail below with reference to the accompanying drawings. 1 to 9 show ventilation curtain walls to which an air ventilation control device according to an embodiment of the present invention is applied. The ventilation curtain wall 1 illustrated here is configured to form the exterior wall of a building by arranging a standard curtain wall 2 and a divided standard curtain wall 3 vertically and horizontally in combination. The building has a ceiling panel C between an upper floor slab S1 and a lower floor slab S2, thereby defining an interior space below the ceiling panel C and a ceiling space above the ceiling panel C. The ventilation curtain wall 1, standard curtain wall 2, and divided standard curtain wall 3 described above are disposed on the outdoor side of the upper and lower floor slabs S1 and S2. The standard curtain wall 2 is configured by arranging a standard panel 15, such as double-glazed glass, inside a frame 10 formed by a standard upper frame 11, a standard lower frame 12, and left and right standard vertical frames 13 and 14. The divided standard curtain wall 3 is constructed by arranging standard vertical ribs 16 along the top and bottom of a frame body 10 made up of a standard top frame 11, a standard bottom frame 12, and left and right standard vertical frames 13, 14, and disposing standard panels 15 such as double-glazed glass inside each of the ribs. Although not shown in the figure, the standard top frame 11, standard bottom frame 12, standard vertical frames 13, 14, and standard vertical ribs 16 are constructed so that the dimensions of the standard panels 15 along the thickness direction are approximately equal to each other.

[0010] In contrast, the ventilation curtain wall 1 has a frame 20 composed of an upper frame 21, a lower frame 22, and left and right vertical frames 23, 24. Vertical ribs 25 are arranged vertically along the top and bottom of the frame 20. A panel 26, such as double-glazed glass, is arranged on one side of the vertical ribs 25, while a bay window 30 protruding to the outside is arranged on the other side of the vertical ribs 25. The following description will mainly focus on the ventilation curtain wall 1, which has a panel 26 between the vertical frame 25 and the vertical rib 25 when facing the exterior wall of a building from the outside. The panel 26 is located between the vertical frame 23 (hereinafter referred to as the left vertical frame 23) and the vertical rib 25, and the bay window 30 is located between the vertical frame 24 (hereinafter referred to as the right vertical frame 24) and the vertical rib 25. For convenience, the following description will refer to the horizontal direction along the exterior wall surface of the building as the X direction and the horizontal direction perpendicular to the exterior wall surface as the Y direction. In other words, in the illustrated example, the panel 26 is arranged along the X direction, and the bay window 30 is arranged to protrude to the outside of the building in the Y direction.

[0011] The upper frame 21, lower frame 22, left vertical frame 23, right vertical frame 24, and vertical center frame 25 that make up the frame 20 of the ventilation curtain wall 1 are all extruded shapes made of metal such as aluminum alloy, and are configured so that each has a cross-sectional shape that is approximately uniform along its length. Of these, the upper frame 21, lower frame 22, and left vertical frame 23 have the same configuration as the standard upper frame 11, standard lower frame 12, and standard left vertical frame 13, respectively.

[0012] As shown in Figure 10, the upper frame 21 includes an upper frame main body 21a, a storage groove wall 21b, and a panel support portion 21c. The upper frame main body 21a is cylindrical with a substantially rectangular cross section. An upper engagement groove 21d is provided on the upper surface of the upper frame main body 21a, opening upward. The storage groove wall 21b extends from the upper edge of the upper frame main body 21a located on the exterior side of the room in the Y direction toward the exterior side of the room in the Y direction, then bends and extends downward, forming a panel storage groove 21e that opens to the inner periphery between the upper frame main body 21a and the upper frame main body 21a. The panel support portion 21c is cylindrical with a rectangular cross section that is smaller than the upper frame main body 21a and protrudes from the upper edge of the upper frame main body 21a located on the interior side of the room in the Y direction toward the interior side of the room in the Y direction.

[0013] As shown in FIG. 11 , the lower frame 22 has a lower frame main body 22a and a storage groove wall 22b. The lower frame main body 22a extends almost horizontally along the Y direction. The dimension of the lower frame main body 22a along the Y direction is approximately equal to the combined dimension of the upper frame main body 21a and the panel support portion 21c of the upper frame 21. An upper engagement protrusion 22c is provided on the underside of the lower frame main body 22a at a position corresponding to the upper engagement groove 21d of the upper frame 21, and is insertable into the upper engagement groove 21d. The storage groove wall 22b extends downward from an edge of the lower frame main body 22a located on the room exterior in the Y direction, and then extends toward the room exterior in the Y direction. A ledge 22A is attached to the portion of the storage groove wall 22b extending toward the room exterior in the Y direction. The flange 22A extends in the Y direction on the underside of the portion of the storage groove forming wall 22b that extends toward the outside of the room in the Y direction, and then the edge on the outside of the room bends and extends upward, forming a panel storage groove 22d that opens to the inner periphery between the flange 22A and the storage groove forming wall 22b. The panel storage groove 22d of the lower frame 22 is provided in a portion that faces the panel storage groove 21e of the upper frame 21 and is located between the left vertical frame 23 and the vertical center rib 25.

[0014] As shown in Figure 12, the left vertical frame 23 has a left frame main body 23a and a storage groove-forming wall 23b. The left frame main body 23a extends almost vertically along the Y direction. The dimension of the left frame main body 23a along the Y direction is slightly smaller than the combined dimension of the upper frame main body 21a and the panel support portion 21c of the upper frame 21. A lateral engagement groove 23c is provided on the left side of the left frame main body 23a in the X direction, opening to the left in the X direction. The storage groove-forming wall 23b extends to the left in the X direction from the edge of the left frame main body 23a located on the room's outside in the Y direction, and then extends toward the room's outside in the Y direction. A ledge 23A is attached to the storage groove-forming wall 23b. The ledge 23A extends in the Y direction on the left side in the X direction of the portion of the storage groove forming wall portion 23b that extends toward the outside of the room in the Y direction, and then the edge portion on the outside of the room in the Y direction bends and extends to the right side in the X direction, and forms a panel storage groove 23d that opens to the inner periphery between the ledge 23A and the storage groove forming wall portion 23b. The panel storage groove 23d of the left vertical frame 23 is provided over the entire longitudinal length so as to be continuous with the panel storage groove 21e of the upper frame 21 and the panel storage groove 22d of the lower frame 22.

[0015] As shown in FIG. 13 , the right vertical frame 24 has a right frame main body 24a and a bay window groove-forming wall 24b. The right frame main body 24a extends substantially vertically along the Y direction. The dimension of the right frame main body 24a along the Y direction is larger than the dimension of the left frame main body 23a along the Y direction. An auxiliary groove-forming wall 24c and two side protruding walls 24d are provided on the right side of the right frame main body 24a in the X direction. The auxiliary groove-forming wall 24c is flat and extends along the X direction, and is located approximately midway in the Y direction. The side protruding walls 24d each extend along the X direction and are flat, with their extending edges substantially parallel to each other. They are located at positions corresponding to the side engagement grooves 23c of the left vertical frame 23 so as to be insertable into the side engagement grooves 23c. The bay window groove-forming wall portion 24b extends from the Y-direction exterior edge of the right-frame main body portion 24a toward the right in the X-direction, gradually tilting inward in the Y-direction, before bending and extending toward the exterior in the Y-direction. Between the auxiliary groove-forming wall portion 24c and the bay window groove-forming wall portion 24b, an outer wall portion 24e extending along the Y-direction defines a hollow portion 24f between the right-frame main body portion 24a and the auxiliary groove-forming wall portion 24c. A bay window joist 24A is attached to the portion of the outer wall portion 24e to the right of the bay window groove-forming wall portion 24b in the X-direction. The bay window joist 24A extends toward the exterior in the Y-direction along the outer wall portion 24e, then gradually tilts toward the exterior in the Y-direction toward the left in the X-direction, forming a bay window panel storage groove 24g between the bay window groove-forming wall portion 24b and the bay window panel storage groove 24g. The bay window panel storage groove 24g opens toward the left in the X-direction, gradually tilting toward the exterior in the Y-direction. As shown in Figures 3, 4, 6, and 7, the upper ends of the right frame body 24a, outer wall 24e, bay window groove-forming wall 24b, and bay window ledge 24A that protrude further outward in the Y direction than the panel accommodating groove 21e of the upper frame 21 are inclined so as to match an imaginary plane that slopes gradually downward toward the outside in the Y direction and gradually downward toward the left in the X direction. The lowest position of the imaginary plane is set to be above the ceiling panel material C.

[0016] As shown in Figures 8, 9, and 14, the vertical backbone 25 has a backbone main body 25a and an outward protruding portion 25b. The backbone main body 25a has a cylindrical shape with a substantially square cross section. The outward protruding portion 25b has a cylindrical shape with a rectangular cross section. Both the short and long sides of the outward protruding portion 25b are configured to be shorter than one side of the backbone main body 25a. This outward protruding portion 25b protrudes toward the outside of the room in the Y direction from the outer surface of the backbone main body 25a located on the outside of the room in the Y direction. A flange 25A is attached to the left side of the outward protruding portion 25b in the X direction, and a panel receiving groove 25c is formed between the backbone main body 25a and the backbone main body 25a. The panel housing groove 25c of the vertical rib 25 faces the panel housing groove 23d of the left vertical frame 23 and is formed so as to be continuous with the panel housing groove 21e of the top frame 21 and the panel housing groove 22d of the bottom frame 22. A panel 26 is supported between the top frame 21, the bottom frame 22, the left vertical frame 23, and the vertical rib 25 via the respective panel housing grooves 21e, 22d, 23d, and 25c. A left horizontal member 27 is disposed between the left vertical frame 23 and the vertical rib 25 along the left-right direction at a height corresponding to the ceiling panel material C, and a fire-resistant panel 5 is disposed in the area surrounded by the top frame 21 and the left horizontal member 27 via a panel support portion 21c. Similarly, a right horizontal member 28 is erected between the right vertical frame 24 and the vertical center frame 25 along the left-right direction at a height corresponding to the ceiling panel material C, and a fire-resistant panel 5 is arranged in the area surrounded by the upper frame 21 and the right horizontal member 28 via a panel support part 21c.

[0017] Additionally, a backbone attachment (wall) 31 is attached to the vertical backbone 25 via an attachment mounting portion 25d at the inside corner on the right side in the X direction between the backbone main body portion 25a and the outward protrusion portion 25b. The attachment mounting portion 25d is a plurality of protrusions provided for positioning the backbone attachment 31 at the inside corner of the vertical backbone 25. The backbone attachment 31 is an extruded member formed from a metal such as an aluminum alloy, and is configured with an attachment main body 31a and a bay window groove-forming wall portion 31b.

[0018] The attachment body 31a is cylindrical with a trapezoidal cross section, surrounded by a base end wall portion 31c, an inner wall portion 31d, an outer wall portion 31e, and an inclined wall portion 31f, and its dimension along the Y direction is set so that it protrudes further toward the outside of the room in the Y direction than the right vertical frame 24. The base end wall portion 31c extends in the X direction on the inside of the room in the Y direction. The inner wall portion 31d extends from an edge of the base end wall portion 31c located on the right side in the X direction toward the outside of the room in the Y direction. The outer wall portion 31e extends from an edge of the base end wall portion 31c located on the left side in the X direction toward the outside of the room in the Y direction, parallel to the inner wall portion 31d. The extension dimension of the outer wall portion 31e is formed to be shorter than that of the inner wall portion 31d. The inclined wall portion 31f is provided to connect the extended edge of the inner wall portion 31d and the extended edge of the outer wall portion 31e. An inner guide wall portion 31g and an outer guide wall portion 31h, which are substantially parallel to the base end wall portion 31c, are provided inside the attachment body 31a, bridging the inner wall portion 31d and the outer wall portion 31e. The attachment body 31a is attached to the vertical backbone 25 by engaging a plurality of engagement pieces 31i, provided at the corners of the base end wall portion 31c and the outer wall portion 31e, with the attachment mounting portion 25d. An interior cover member 32 is attached to the inner wall portion 31d of the attachment body 31a up to a position that covers a portion of the backbone main body portion 25a. Bay window groove-forming wall portion 31b slopes gradually toward the outside of the room in the Y direction from the connecting portion between inner wall portion 31d and inclined wall portion 31f toward the left in the X direction, and then bends and extends toward the outside of the room in the Y direction. Bay window batten 31A is attached to bay window groove-forming wall portion 31b, and a bay window panel storage groove 31j is formed between bay window batten 31A and bay window batten 31A. Bay window panel storage groove 31j opens gradually toward the inside of the room in the Y direction toward the right in the X direction, thereby facing bay window panel storage groove 24g in the right vertical frame 24. As shown in Figures 3, 4, 6, and 7, the attachment main body 31a, bay window groove-forming wall portion 31b, and bay window batten 31A are sloped so that the upper ends of the portions that protrude toward the outside of the room in the Y direction beyond panel storage groove 21e in the upper frame 21 coincide with the imaginary plane described above.

[0019] The above-mentioned center rib attachment 31 is set so that its lower edge is located slightly above the upper surface of the bottom frame 22 and its upper edge is below the bay window panel storage groove 24g provided in the right vertical frame 24. As shown in Figure 4, a bottom frame attachment 33 is provided opposite the lower ends of the center rib attachment 31 and the interior cover member 32, and an upper frame attachment 34 is provided opposite the upper ends of the center rib attachment 31 and the interior cover member 32.

[0020] As shown in Figures 4, 5, and 15, the lower frame attachment 33 is attached to the lower frame 22 in the portion between the vertical rib 25 and the right vertical frame 24, and includes a lower attachment main body 33a and a lower frame mounting portion 33b. The lower attachment main body 33a is a flat plate extending approximately horizontally along the Y direction. The lower frame mounting portion 33b protrudes downward from the underside of the lower attachment main body 33a on the indoor side in the Y direction. This lower frame attachment is attached to the lower frame 22 via the lower frame mounting portion 33b and the storage groove forming wall portion 22b. The extending edge of the lower attachment main body 33a extends along the line connecting the bay window panel storage groove 24g of the right vertical frame 24 and the bay window panel storage groove 31j of the rib attachment 31. A bay window groove component 35 is attached to the underside of the extended edge of the lower attachment main body 33a. The bay window groove component 35 has a groove component main body 35a that is tubular and has a substantially square cross section, and a ridge fin portion 35b that extends from the lower edge of the groove component main body 35a, located on the outside of the room in the Y direction, toward the outside of the room in the Y direction. A bay window ridge 35A is attached to the groove component main body 35a, and a bay window panel storage groove 35c is formed between the bay window ridge 35A and the bay window panel storage groove 35c. The bay window panel storage groove 35c is provided so as to connect the lower end of the bay window panel storage groove 24g of the right vertical frame 24 and the bay window panel storage groove 31j of the rib attachment 31.

[0021] As shown in FIG. 16, the upper frame attachment 34 is inclined gradually upward from the upper end of the backbone attachment 31 toward the right in the X direction and is configured to connect to the right vertical frame 24. It is composed of an upper attachment member 34A and an upper cover member 34B. The upper attachment member 34A has an attachment main body 34a and a cover connecting portion 34b. The attachment main body 34a has a cylindrical shape with a substantially trapezoidal cross section. The cover connecting portion 34b has a flat plate shape that extends from a portion of the attachment main body 34a located on the exterior side of the room in the Y direction toward the exterior side of the room in the Y direction. The upper cover member 34B has a cover main body 34c, a cover plate portion 34d, and a bay window groove forming portion 34e. The cover main body 34c has a rectangular cross section and is tubular, extending along the line connecting the bay window panel storage groove 24g of the right vertical frame 24 and the bay window panel storage groove 31j of the rib attachment 31, as well as along the imaginary plane. The cover plate 34d is flat and extends from the upper edge of the cover main body 34c on the indoor side in the Y direction toward the interior of the room in the Y direction. The edge of the cover plate 34d on the indoor side in the Y direction extends along the X direction. The bay window groove forming portion 34e extends from the upper edge of the cover main body 34c on the outdoor side in the Y direction toward the exterior of the room in the Y direction, then bends and extends downward, forming a bay window panel storage groove 34f that opens downward between the cover main body 34c and itself. The bay window panel storage groove 34f of the upper frame attachment 34 is provided so as to connect the upper ends of the bay window panel storage groove 24g of the right vertical frame 24 and the bay window panel storage groove 31j of the rib attachment 31. A bay window panel 36, such as double-glazed glass, is supported between the right vertical frame 24, rib attachment 31, lower frame attachment 33, and upper frame attachment 34 via the bay window panel storage grooves 24g, 31j, 35c, and 34f. Furthermore, as shown in Figures 3, 4, and 6, an upper end cover 37 is provided above the upper frame attachment 34 to cover the right vertical frame 24 and the vertical rib 25, including the portions that protrude further outside the room in the Y direction than the panel storage groove 21e of the upper frame 21.

[0022] As described above, in the ventilation curtain wall 1, the frame body 20 has a bay window section 30 between the right vertical frame 24 and the vertical rib 25 that protrudes to the outside of the room in the Y direction and communicates with the indoor space. This bay window section 30 has an air vent 40 provided in the rib attachment 31 along the X direction to connect the indoors and outdoors, and an air vent control device 50 is provided to the left of the air vent 40 in the X direction (to the outside of the room). Furthermore, a water guide member 60 is provided in a position above the air vent 40.

[0023] The ventilation holes 40 are formed by providing outer notches 41 between the inner guide wall 31g and the outer guide wall 31h in the outer wall 31e of the rib attachment 31, and inner notches 42 between the inner guide wall 31g and the outer guide wall 31h in the inner wall 31d. The outer notches 41 are generally square-shaped, and as shown in Figures 17 to 20, multiple outer notches 41 are arranged side by side at equal intervals vertically within a height range corresponding to the indoor space. The width of each outer notch 41 along the left and right is smaller than the distance between the inner guide wall 31g and the outer wall 31e. The inner notch 42 is formed to include all of the outer notches 41 and is formed as an elongated hole vertically. The width of each inner notch 42 along the left and right is approximately equal to the distance between the inner guide wall 31g and the outer guide wall 31h. Furthermore, the interior cover member 32 is also provided with a cover cutout portion 43 so as to include all of the outer cutouts 41. The width dimension of the cover cutout portion 43 along the left and right is set to be smaller than that of the inner cutout 42 and larger than that of the outer cutout 41.

[0024] A screen door 44 and a ventilation door 45 are provided between the outer wall 31e of the rib attachment 31 and the interior cover member 32. The screen door 44 includes a screen frame 44a and a mesh 44b that covers the opening of the screen frame 44a. The screen door 44 is attached to the rib attachment 31 with the screen frame 44a abutting against the outer wall 31e and the mesh 44b covering all of the outer cutouts 41. The ventilation door 45 is sized to fit in the cover cutout 43 of the interior cover member 32 and is supported by the screen frame 44a via its side edge on the outside of the room in the Y direction. Shape hinges 45a and 44c are provided between the edge of the ventilation door 45 and the screen frame 44a, centered on vertical axes, allowing the ventilation door 45 to rotate around the vertical axis relative to the screen frame 44a.

[0025] When the ventilation door 45 is rotated to the left in the X direction, as shown by the solid lines in Figure 9, it can close the opening in the screen frame 44a (closed position of the ventilation door 45), and the inner and outer sealing members 44d and 44e on the screen frame 44a each come into close contact with the ventilation door 45, thereby preventing ventilation between the inside and outside of the room through the outer notch 41. In this state, the locking device 46 provided between the inside edge of the ventilation door 45 in the Y direction and the screen frame 44a can be locked, allowing the ventilation door 45 to be maintained in the closed position. If the locking device 46 is unlocked from the above state, the ventilation door 45 can be opened to the right in the X direction, as shown by the two-dot chain line in Figure 9, allowing ventilation between the inside and outside of the room through the outer notch 41, the screen frame 44a, the inner notch 42, and the cover notch 43 in the bay window section 30.

[0026] The ventilation control device 50 is equipped with a first ventilation control unit 50A and a second ventilation control unit 50B, and is supported on the contact portions 25e, 31m provided on the outward protrusion 25b of the vertical backbone 25 and the outward extension portion 31k of the backbone attachment 31 on the left side of the outer wall portion 31e of the backbone attachment 31 in the X direction.

[0027] The abutment portion 25e of the vertical backbone 25 is flat and extends from the edge located on the right side of the outward protrusion 25b in the X direction toward the outside of the room in the Y direction. The edge located on the right side of the outward protrusion 25b in the X direction has a positioning protrusion 25f protruding toward the right in the X direction abutting against the outer wall 31e of the backbone attachment 31, thereby ensuring a gap between the abutment portion 25e of the vertical backbone 25 and the outer wall 31e. The outward extension portion 31k of the backbone attachment 31 is flat and protrudes to the left in the X direction from a portion of the outer wall 31e located on the outside of the room in the Y direction. The abutment portion 31m of the backbone attachment 31 is flat and extends from the portion of the outward extension portion 31k corresponding to the abutment portion 25e of the vertical backbone 25 in a direction approaching each other. A gap larger than the width dimension of the outer notch 41 is secured between these abutment portions 25e, 31m. Engagement protrusions 25g, 31n are provided on the outward protrusion 25b and the outward extension 31k to the left of the abutment portions 25e, 31m in the X direction. The engagement protrusions 25g, 31n are provided in positions facing each other. The engagement protrusion 31n provided on the outward extension 31k has a greater protruding height than the engagement protrusion 25g provided on the outward protrusion 25b.

[0028] As shown in FIG. 21 , the first ventilation control unit 50A is configured by arranging multiple vertical louver members 51 in parallel in the Y direction. Each vertical louver member 51 is an extruded member formed from a metal such as an aluminum alloy. In this embodiment, the vertical louver member 51 has a louver body 51a that protrudes from the center portion toward the interior of the room in the Y direction and side wall blades 51b that extend from both side edges of the louver body 51a toward the exterior of the room in the Y direction. As shown in FIG. 3 , each vertical louver member 51 is continuously provided from the portion above the lower frame attachment 33 to the upper end cover 37. As shown in FIG. 21 , each vertical louver member 51 has a restricting member 51c protruding from the louver body 51a located on the interior side of the room in the Y direction. The restricting member 51c is a so-called baffle plate or obstruction plate and is provided to restrict the flow of fluid to the right in the X direction. In this embodiment, a restricting member 51c is used, the gap between which gradually widens toward the left in the X direction and the louver main body 51a, and the extending edge is curved toward the louver main body 51a. These vertical louver materials 51 are arranged side by side at equal intervals between support members 52 and 53 on both sides, and are integrated by connecting the side wall blades 51b located on the right side in the X direction to louver connecting members 54. The mutual interval between adjacent vertical louver materials 51 is set so that the louver main body 51a and the restricting member 51c overlap in the X direction but do not contact each other.

[0029] The support members 52 and 53 each include a partition wall portion 52a, 53a, an attachment wall portion 52b, 53b, and a connecting wall portion 52c, 53c. The partition wall portions 52a, 53a are flat and extend in the X direction. The dimension of the partition wall portions 52a, 53a along the X direction is approximately equal to the distance from the abutment surfaces 25h, 31p located on the left side of the abutment portions 25e, 31m in the X direction to the outer wall portion 31e. The partition wall portions 52a, 53a are configured so that the extended edges of the partition wall portions 52a, 53a abut against the outer wall portion 31e when the attachment wall portions 52b, 53b (described later) are abutted against the abutment surfaces 25h, 31p. The spacing between the partition wall portions 52a, 53a is set to be smaller than the spacing between the abutment portions 25e, 31m and larger than the width of the outer notch 41. The mounting walls 52b, 53b extend away from each other in the Y direction from the left edge of the partition walls 52a, 53a in the X direction, then bend and extend to the left in the X direction. The maximum width from one mounting wall 52b to the other mounting wall 53b is set to be greater than the distance between the contact portions 25e, 31m and smaller than the distance between the engagement protrusions 25g, 31n. The dimension of the mounting walls 52b, 53b along the X direction is approximately equal to the distance between the contact portions 25e, 31m and the engagement protrusions 25g, 31n. The connecting walls 52c, 53c extend toward each other from the left edge of the partition walls 52a, 53a in the X direction. The louver connecting member 54 is connected to the support members 52, 53 via the partition walls 52a, 53a and the connecting walls 52c, 53c. In addition, a vertical louver portion 53d having the same cross-sectional shape as the vertical louver material 51 is integrally formed on the support member 53 on the exterior side in the Y direction from the edge of the connecting wall portion 53c.

[0030] As shown in FIGS. 17 to 20, the second ventilation control section 50B is configured by arranging a plurality of horizontal louver members 55 in a vertical line. Each horizontal louver member 55 is an extruded member formed from a metal such as an aluminum alloy, and has a lower edge plate portion 55a, an inclined plate portion 55b, and an upper edge plate portion 55c. The lower edge plate portion 55a is a flat plate extending in the vertical direction. The inclined plate portion 55b is a flat plate extending upward from the upper edge of the lower edge plate portion 55a so as to gradually incline to the right in the X direction. The upper edge plate portion 55c is a flat plate extending upward in the vertical direction from the upper edge of the inclined plate portion 55b. The dimensions along the Y direction of the lower edge plate portion 55a, the inclined plate portion 55b, and the upper edge plate portion 55c are equal to one another and approximately equal to the distance between the partition walls 52a and 53a provided in the first ventilation control portion 50A. The dimension from the surface of the lower edge plate portion 55a located on the left side in the X direction to the surface of the upper edge plate portion 55c located on the right side in the X direction is slightly smaller than the dimensions along the X direction of the partition walls 52a and 53a. The dimension from the lower edge of the lower edge plate portion 55a to the upper edge of the upper edge plate portion 55c is smaller than the opening pitch of the outer cutouts 41, i.e., the distance from the upper edge of the outer cutout 41 located above to the upper edge of the outer cutout 41 located below. The dimension from the lower edge of the lower edge plate portion 55a to the upper edge of the inclined plate portion 55b is larger than the dimension along the top and bottom of the outer cutout 41. The vertical dimension of upper edge plate portion 55c is smaller than the dimension of outer wall portion 31e located between outer cutouts 41. Each horizontal louver material 55 is supported on first ventilation control portion 50A by threading screw members 56 through partition wall portions 52a, 53a while positioned between partition wall portions 52a, 53a. The positions at which horizontal louvers 55 are provided are set equal to the opening pitch of outer cutouts 41, and are set so that the upper edges of inclined plate portions 55b of horizontal louver material 55 coincide with the upper edges of outer cutouts 41 when attached to vertical ribs 25 as described below.

[0031] The ventilation control device 50, which integrates the first ventilation control unit 50A and the second ventilation control unit 50B as described above, is attached to the vertical rib 25 and the rib attachment 31 by abutting the mounting walls 52b, 53b against the abutment surfaces 25h, 31p of the abutment portions 25e, 31m with the vertical louver material 51 facing left in the X direction (facing outside the room in the X direction) and then threading the screw members 57 into the abutment portions 25e, 31m via the mounting walls 52b, 53b. The horizontal louver materials 55 of the second ventilation control unit 50B have elastic members 55d previously provided on their upper edge plate portions 55c, so that the upper edge plate portion 55c abuts against the surface of the outer wall portion 31e on the left side in the X direction via the elastic members 55d. As described above, the outward protrusion 25b of the vertical rib 25 and the outward extension 31k of the rib attachment 31 are provided with the engagement protrusions 25g, 31n. Therefore, as shown in FIG. 22(a), the ventilation control device 50 is tilted, and the mounting wall 53b of the support member 53 located on the outside of the room in the Y direction is first inserted between the abutment 31m and the engagement protrusion 31n. Then, as shown in FIG. 22(b), the mounting wall 52b of the support member 52 located on the inside of the room in the Y direction is inserted between the abutment 25e and the engagement protrusion 25g. Furthermore, as shown in FIG. 22(c), the ventilation control device 50 is moved toward the inside of the room in the Y direction until the mounting wall 52b abuts against the outward protrusion 25b, thereby temporarily fastening the ventilation control device 50 to the vertical rib 25 and the rib attachment 31. In this state, the mounting walls 52b, 53b abut against the engaging projections 25g, 31n, and therefore the screw members 57 can be screwed into the abutment portions 25e, 31m via the mounting walls 52b, 53b without supporting the ventilation control device 50, facilitating the installation of the ventilation control device 50. Conversely, even if the screw members 57 become loose, there is no risk of the ventilation control device 50 falling off the vertical rib 25 and the rib attachment 31.

[0032] The vertical rib 25 and rib attachment 31 to which the ventilation control device 50 is attached define an outer space 38 surrounded by the outer wall 31e, two partition walls 52a, 53a, and multiple vertical louver members 51, and drainage spaces 39 are defined on both sides of the outer space 38 in the Y direction. The outer space 38 is a space in which horizontal louver members 55 are disposed, and the portion above the uppermost outer notch 41 forms a vertically extending void. The drainage space 39 on the indoor side in the Y direction is surrounded by the outer wall 31e, positioning protrusion 25f, mounting wall 52b, and partition wall 52a. The drainage space 39 on the outdoor side in the Y direction is surrounded by the outer wall 31e, outward extension 31k, mounting wall 53b, and partition wall 53a. In addition, reference numeral 58 in the drawing denotes an opening / closing door provided on the room outer side in the Y direction relative to the ventilation control device 50, and can be opened to the left in the X direction.

[0033] The water guide member 60 is made of an elastic material such as EPDM, and is a block-shaped member that is rectangular in plan view. The dimension of the water guide member 60 along the Y direction is set to be greater than the distance between the partition wall portions 52a, 53a provided in the ventilation control device 50. The upper surface of the water guide member 60 is provided with a water guide surface 60a that slopes gradually downward from the center toward both sides in the Y direction. The lower surface of the water guide member 60 is flat, and has insertion recesses 60b at both ends in the Y direction. The insertion recesses 60b are sized to allow the partition wall portions 52a, 53a to be inserted therein, and the spacing between them is set so that the two partition wall portions 52a, 53a can be inserted simultaneously.

[0034] The water guide member 60 is supported on the ventilation control device 50 via a mounting bracket 61. In the illustrated example, the water guide member 60 is disposed slightly above the upper edge of the uppermost outer cutout 41 and above the ceiling panel C. The mounting bracket 61 has a flat mounting plate portion 61a extending vertically along the Y direction and a flat fitting plate portion 61b extending from the mounting plate portion 61a to the right in the X direction. The mounting bracket 61 supports the water guide member 60 via the fitting plate portion 61b and is attached to the multiple vertical louver members 51 and support members 52, 53 via the mounting plate portion 61a. When attached to the ventilation control device 50, both surfaces in the X direction of the water guide member 60 are in pressure contact with the mounting plate portion 61a and the outer wall portion 31e. Both ends of the water guide member 60 protrude into the two drainage spaces 39 through notches 62 provided in the partition wall portions 52a, 53a. The water guide surface 60a extends beyond the partition wall portions 52a, 53a and reaches the drainage spaces 39, and the partition wall portions 52a, 53a are inserted into the insertion recesses 60b on the lower surface.

[0035] In the bay window section 30 of the ventilation curtain wall 1 configured as described above, the first ventilation control section 50A, which includes multiple vertical louver members 51 arranged side by side, is positioned so as to overlap the outer notch 41 of the ventilation hole 40 in the X direction. As described above, the vertical louver members 51 are provided with restricting members 51c so that they overlap adjacent ones in the X direction. Therefore, with the ventilation control device 50 described above, the outer notch 41 is not directly visible when viewed from the outside of the room in the X direction. Furthermore, because the restricting members 51c restrict the flow of fluid, ventilation is permitted between the outside and inside of the room in the X direction. However, even if water infiltrates the room through the louver body 51a, the restricting members 51c prevent further infiltration of water into the room. As a result, by opening the ventilation door 45 on the indoor side in the X direction, it is possible to ventilate the room while preventing outside water, such as rainwater, from infiltrating the room in the X direction. Moreover, in the above-described bay window section 30, the second ventilation control section 50B, which has multiple horizontal louver materials 55 arranged vertically in a row, is positioned on the indoor side of the first ventilation control section 50A in a position overlapping in the X direction with the outer notch 41 of the ventilation hole 40. Therefore, even if water from outside passes through the first ventilation control section 50A, the second ventilation control section 50B can prevent it from entering the indoor side, thereby improving watertightness.

[0036] In the portion above the uppermost outer notch 41, water that passes through the vertical louver material 51 of the first ventilation control section 50A and reaches the outer wall section 31e gradually drips downward in the outer space 38. Therefore, when water in the outer space 38 reaches the portion corresponding to the outer notch 41, there is a risk that this water will enter the room through the air vent 40. However, in the above-described ventilation curtain wall 1, the water guide member 60 is provided above the upper edge of the uppermost outer notch 41 so as to block the outer space 38 from above and below. Therefore, water that passes through the first ventilation control section 50A in the portion above the outer notch 41 is received by the water guide member 60 as it drips in the outer space 38, and is then guided to the drainage spaces 39 according to the inclination of the water guide surface 60a, and is guided downward in each drainage space 39. The drainage space 39 is a space that is isolated from the outer space 38 except for the notch 62 provided in the portion corresponding to the water-guiding member 60. This prevents the water guided through the drainage space 39 from returning to the air vent 40 and allows it to be discharged directly to the outside, which is advantageous in terms of watertightness.

[0037] Although the above-described embodiment illustrates an air vent control device 50 that controls the airflow through the air vent 40 of the bay window 30 provided in the ventilation curtain wall 1, the present invention is not limited thereto. The present invention may also be applied to air vents 40 provided in walls other than curtain walls, such as fittings. In this case, the air vent 40 is not limited to one that vents along the X direction, but may also vent along the Y direction. The position of the bay window 30 is also not limited to that described in the embodiment, and may be provided on the left side of the vertical rib 25. Furthermore, the air vent 40 does not need to have multiple outer notches 41, but may have a single outer notch. Furthermore, although the second air vent control unit 50B is provided on the indoor side of the first air vent control unit 50A in the air flow direction of the air vent 40, the second air vent control unit 50B may also be provided on the outdoor side of the first air vent control unit 50A. Furthermore, although the second ventilation control unit 50B is supported by the first ventilation control unit 50A, the first ventilation control unit 50A and the second ventilation control unit 50B may be provided separately on the wall. Furthermore, although the rib attachment 31 is configured separately from the vertical rib 25, the vertical rib 25 and the rib attachment 31 may be configured integrally.

[0038] As described above, the ventilation control device of the present invention is a ventilation control device that controls the ventilation of air vents opened on the side of a wall to connect the inside and outside of the room, and is characterized in that it comprises a first ventilation control unit in which multiple vertical louver materials extending up and down are arranged in parallel on the left and right, and a second ventilation control unit in which multiple horizontal louver materials extending left and right are arranged in parallel on the top and bottom, the first ventilation control unit and the second ventilation control unit are arranged side by side in the ventilation direction at a position overlapping the opening of the air vent, and the vertical louver material is provided with a regulating member that regulates the flow of fluid toward the inside of the room. According to this invention, the first ventilation control section is made of vertical louvers with restricting members, which prevents water from entering the room. Furthermore, the second ventilation control section is made of horizontal louvers extending in different directions, which are arranged in parallel in the ventilation direction. Even if water from the outside, such as rainwater, passes through the ventilation control section on the outside, the ventilation control section on the inside can prevent water from entering the room. This allows ventilation with improved watertightness.

[0039] Furthermore, in the ventilation control device of the present invention, the vertical louver members are arranged so as to overlap adjacent vertical louver members in the ventilation direction. According to this invention, the vertical louver materials are arranged so as to overlap in the air passage direction, which is advantageous in terms of waterproofing.

[0040] The present invention is also characterized in that, in the above-mentioned ventilation control device, the first ventilation control section has partition wall sections extending along the ventilation direction of the ventilation hole at the left and right edges, and the horizontal louver material is supported by the first ventilation control section via the partition wall sections. According to this invention, the first ventilation control section and the second ventilation control section can be handled as a single unit, which is advantageous in terms of workability when attaching them.

[0041] The present invention is also characterized in that, in the above-mentioned ventilation control device, the first ventilation control unit has mounting wall portions on the left and right edges extending in a direction intersecting the partition wall portion, and the first ventilation control unit is attached to the wall body via the mounting wall portions. According to this aspect of the invention, the first ventilation control section and the second ventilation control section can be attached to the wall body via the mounting wall section.

[0042] The present invention is also characterized in that, in the above-mentioned ventilation control device, the wall body is provided with an abutment surface against which the mounting wall portion abuts, and an engaging protrusion that engages with the mounting wall portion when the mounting wall portion abuts against the abutment surface, thereby restricting movement of the mounting wall portion in a direction away from the abutment surface. According to this invention, the engagement of the engaging projection can prevent the first ventilation control section from falling off.

[0043] Furthermore, in the ventilation control device of the present invention, the first ventilation control section is provided on the outdoor side of the room with respect to the second ventilation control section. According to this invention, the restricting member is provided in the first ventilation control section disposed on the outdoor side, which is advantageous in terms of waterproofing.

[0044] Furthermore, in the above-described ventilation control device, the present invention is characterized in that the horizontal louver material is arranged so as to overlap adjacent horizontal louver materials in the ventilation direction of the ventilation holes. According to this invention, since the horizontal louver materials are arranged so as to overlap, it is possible to improve the watertightness of air vents having openings with large dimensions in the vertical direction. [Explanation of symbols]

[0045] 1 ventilation curtain wall, 25 vertical center rib, 25g, 31n engaging protrusion, 25h, 31p abutment surface, 31 center rib attachment, 40 ventilation hole, 41 outer notch, 50 ventilation control device, 50A first ventilation control section, 50B second ventilation control section, 51 vertical louver material, 51c regulating member, 52a, 53a partition wall section, 52b, 53b mounting wall section, 55 horizontal louver material

Claims

1. An airflow control device that controls airflow through an air vent that is opened on a side surface of a wall body so as to communicate between the indoors and outdoors, a first ventilation control section in which a plurality of vertical louver members extending up and down are arranged in parallel on the left and right sides; a second ventilation control section in which a plurality of horizontal louver members extending left and right are arranged in parallel above and below; the first ventilation control section and the second ventilation control section are arranged side by side in the ventilation direction at positions overlapping with the openings of the ventilation holes, The ventilation control device is characterized in that the vertical louver material is provided with a restricting member that restricts the flow of fluid toward the indoor side.

2. The ventilation control device according to claim 1, wherein the vertical louver members are arranged so as to overlap adjacent vertical louver members in the ventilation direction.

3. the first ventilation control section has partition wall sections at left and right edges extending along the ventilation direction of the ventilation hole, The ventilation control device according to claim 1 , wherein the horizontal louver member is supported by the first ventilation control unit via the partition wall.

4. The first ventilation control section has mounting walls at left and right edges, the mounting walls extending in a direction intersecting the partition wall, 4. The ventilation control device according to claim 3, wherein the first ventilation control section is attached to the wall body via the mounting wall section.

5. The ventilation control device described in claim 4, characterized in that the wall body is provided with an abutment surface against which the mounting wall portion abuts, and an engagement protrusion that engages with the mounting wall portion when the mounting wall portion abuts the abutment surface, thereby restricting movement of the mounting wall portion in a direction away from the abutment surface.

6. The ventilation control device according to claim 1 , wherein the first ventilation control unit is provided on an outdoor side of the second ventilation control unit.

7. The ventilation control device according to claim 1, wherein the horizontal louver members are arranged so as to overlap adjacent horizontal louver members in the ventilation direction of the ventilation holes.

Images