Ventilation fan mounting structure and building

Abstract

To provide a ventilation fan mounting structure and a building that can improve the constructability of exterior walls and buildings having a ventilation fan mounting structure. [Solution] The ventilation fan mounting structure 20 comprises a first shaft member 23, a second shaft member 24, a first connecting member 25 connecting the first shaft member 23 and the second shaft member 24, a second connecting member 26 connecting the first shaft member 23 and the second shaft member 24, and a cylindrical body 30. The cylindrical body 30 is provided between the first shaft member 23 and the second shaft member 24 and between the first connecting member 25 and the second connecting member 26, connecting the inner space and the outer space of the outer wall 15, and to which the ventilation fan is mounted. The cylindrical body 30 is fixed to the first connecting member 25 and the second connecting member 26 by mounting members.

Description

Technical Field

[0001] The present disclosure relates to an attachment structure of a ventilation fan and a building.

Background Art

[0002] For indoor ventilation, a ventilation fan is provided on the outer wall of a building. The ventilation fan is attached to a through-hole provided in the outer wall. As an attachment structure of the ventilation fan, an example in which a mounting frame is used is known. In the example described in Patent Document 1, an outdoor frame is attached to a through-hole formed in the outer wall. Then, an intermediate frame is attached inside the outdoor frame, and an indoor frame is attached inside the intermediate frame. The ventilation fan is attached to the indoor frame.

[0003] In order to attach the ventilation fan to the outer wall, a reinforcing plate for reinforcing the periphery of the through-hole may be attached to a portion around the through-hole on the outer wall. The ventilation fan is fixed to the reinforcing plate. Since the outer wall is strengthened by the reinforcing plate, the attachment strength of the ventilation fan is improved.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] By the way, when the outer wall is reinforced with a reinforcing plate, operations such as fixing the reinforcing plate at the place where the ventilation fan is attached, further providing a through-hole in the reinforcing plate, and then inserting a frame body or the like through the through-hole of the reinforcing plate are required. Thus, it takes a lot of labor to provide a ventilation fan on the outer wall.

Means for Solving the Problems

[0006] (1) A ventilation fan mounting structure that solves the above problem is a ventilation fan mounting structure in a building, comprising: a first shaft member which is positioned in the vertical direction between the lower base of the building and an upper horizontal member positioned above the lower base in the building and attached to the lower base and the upper horizontal member; a second shaft member which is positioned in the vertical direction between the lower base and the upper horizontal member and attached to the lower base and the upper horizontal member, and positioned at a distance from the first shaft member; and the first shaft member and the second shaft member The structure comprises: a first connecting member positioned between the material and connecting the first shaft member and the second shaft member; a second connecting member positioned below the first connecting member between the first shaft member and the second shaft member and connecting the first shaft member and the second shaft member; and a cylindrical body provided between the first shaft member and the second shaft member and between the first connecting member and the second connecting member, which connects the inner space and the outer space of the outer wall and to which a ventilation fan is attached, wherein the cylindrical body is fixed to the first connecting member and the second connecting member by an attachment member.

[0007] In this configuration, the ventilation fan is supported by a frame composed of a first shaft member, a second shaft member, a first connecting member, and a second connecting member. Since the load of the ventilation fan is applied to the building structure via the frame, the load on the exterior panels or interior materials of the exterior wall can be reduced. This improves the strength of the ventilation fan mounting structure.

[0008] Since the first and second shaft members are attached to the building structure, they can be installed in the structure during construction. Furthermore, since the first and second connecting members are connected to the first and second shaft members, they can be connected to the first and second shaft members during construction. In this way, because these components can be assembled into the building structure during construction, the ease of installation of the ventilation fan mounting structure can be improved.

[0009] (2) In the ventilation fan mounting structure described in (1) above, the first shaft member, the second shaft member, the first connecting member, and the second connecting member are integrally formed. With this configuration, since the first shaft member, the second shaft member, the first connecting member, and the second connecting member are integrally formed, the workability of the exterior wall including the ventilation fan mounting structure can be improved.

[0010] (3) In the ventilation fan mounting structure described in (1) above, a first vertical member is provided between the first connecting member and the second connecting member, and a second vertical member is provided at a distance from the first vertical member in the horizontal direction intersecting the vertical direction, wherein the cylindrical body is provided in the opening between the first vertical member and the second vertical member and between the first connecting member and the second connecting member, and the cylindrical body is fixed to the first connecting member, the second connecting member, the first vertical member, and the second vertical member by the mounting member. With this configuration, the strength of the frame supporting the ventilation fan can be improved by the first vertical member and the second vertical member. In addition, the cylindrical body can be firmly fixed.

[0011] (4) In the ventilation fan mounting structure described in (3) above, a plurality of exterior panels are further provided, the cylindrical body having an upper surface, a lower surface located below the upper surface, a first side surface connecting the upper surface and the lower surface, and a second side surface arranged opposite to the first side surface and connecting the upper surface and the lower surface, the first connecting member and the second connecting member each having a first outer surface facing outwards, a first inner surface facing inwards, and a first intermediate surface connecting the first outer surface and the first inner surface, one of the exterior panels is fixed to the first outer surface of the first connecting member, the other exterior panel is fixed to the first outer surface of the second connecting member, the upper surface of the cylindrical body is fixed to the first inner surface of the first connecting member by the mounting member, and the lower surface of the cylindrical body is fixed to the first inner surface of the second connecting member by the mounting member. With this configuration, an exterior panel can be fixed to the first outer surface of the first connecting member and the second connecting member, and a cylindrical body can be fixed to the first inner surface of the first connecting member and the second connecting member.

[0012] (5) In the ventilation fan mounting structure described in (4) above, the first vertical member and the second vertical member each have a second outer surface facing outwards, a second inner surface facing inwards, and a second intermediate surface connecting the second outer surface and the second inner surface, the first side surface of the cylindrical body is fixed to the second inner surface of the first vertical member by the mounting member, and the second side surface of the cylindrical body is fixed to the second inner surface of the second vertical member by the mounting member. With this configuration, the cylindrical body can be fixed to the frame from four directions by the mounting member. This improves the fixing strength of the cylindrical body to the frame.

[0013] (6) In the ventilation fan mounting structure described in any one of (1) to (5) above, the first shaft member and the second shaft member are fixed to the upper horizontal member by an upper fixing member and to the lower base by a lower fixing member. With this configuration, the first shaft member and the second shaft member can be easily fixed to the building structure by the upper fixing member and the lower fixing member.

[0014] (7) In the ventilation fan mounting structure described in any one of (1) to (6) above, a vibration damping material is provided between the cylindrical body and the mounting member. With this configuration, vibrations when the ventilation fan is operating can be absorbed by the vibration damping material, thereby suppressing vibrations transmitted to the frame. As a result, vibrations of the exterior wall can be suppressed.

[0015] (8) In the ventilation fan mounting structure described in (4) above, the first inner surface of the first connecting member and the first inner surface of the second connecting member each have a plurality of first fixing holes for attaching the mounting member. With this configuration, the mounting member can be easily fixed to the first connecting member and the second connecting member. For this reason, the cylindrical body is easy to attach to the first connecting member and the second connecting member.

[0016] (9) In the ventilation fan mounting structure according to (5) above, each of the second inner surfaces of the first vertical member and the second vertical member has a plurality of second fixing holes for attaching the mounting member. According to this configuration, the mounting member can be easily fixed to the first vertical member and the second vertical member. Therefore, it is easy to attach the cylindrical body to the first vertical member and the second vertical member.

[0017] (10) The building that solves the problem includes a building main body, and the building main body is provided with the ventilation fan mounting structure according to any one of (1) to (9) above, and the ventilation fan is attached to the cylindrical body. According to this configuration, for a building having a ventilation fan mounting structure, the workability can be improved.

Effect of the Invention

[0018] According to the ventilation fan mounting structure and the building of the present disclosure, the workability of the outer wall and the building having the ventilation fan mounting structure can be improved.

Brief Description of the Drawings

[0019] [Figure 1] It is a schematic diagram of a building according to an embodiment. [Figure 2] It is a view of the outer side portion of the outer wall of the building according to the embodiment as seen from the indoor side. [Figure 3] It is a view of the ventilation fan mounting structure of the outer wall of the building according to the embodiment. [Figure 4] It is a cross-sectional view of the ventilation fan mounting structure along the D4-D4 line in FIG. 2. [Figure 5] It is a cross-sectional view of the ventilation fan mounting structure along the D5-D5 line in FIG. 2. [Figure 6] It is a cross-sectional view of the ventilation fan mounting structure along the D6-D6 line in FIG. 2.

Mode for Carrying Out the Invention

[0020] Referring to FIGS. 1 to 6, the building 1 and the mounting structure 20 of the ventilation fan 19 in the present embodiment will be described. The mounting structure 20 of the ventilation fan 19 is a structure for mounting the ventilation fan 19 in the building 1. In the present embodiment, the building 1 is a two-story house. The first floor indicates the floor closest to the ground. In the present embodiment, the front view indicates the direction when viewing the mounting structure 20 of the ventilation fan 19 from the indoor side. The vertical direction DZ indicates the direction along the vertical direction. The lateral direction DX indicates the direction that intersects the vertical direction DZ and is along the horizontal member 12 where the mounting structure 20 of the ventilation fan 19 is arranged in the building 1. The depth direction DY indicates the direction that intersects the vertical direction DZ and the lateral direction DX.

[0021] [Building] As shown in FIG. 1, the building 1 includes a building body 2. The building 1 also includes a ventilation fan 19. The ventilation fan 19 forcibly discharges the indoor air to the outside. The ventilation fan 19 is provided in the building body 2.

[0022] As shown in FIG. 1, the building body 2 has a foundation 3 and a framework 10 provided on the foundation 3. The foundation 3 is composed of reinforced concrete. The lower base 4 described later is a portion of the foundation 3 that is disposed below the upper horizontal member 13 described later. Note that the lower base 4 may be a base placed on the foundation 3. Also, when the ventilation fan 19 is provided on the second floor, the horizontal member 12 disposed near the floor of the second floor corresponds to the lower base 4.

[0023] The framework 10 includes a shaft member 11 extending in the vertical direction DZ and a plurality of horizontal members 12. The horizontal members 12 are provided so as to span a plurality of shaft members 11. The plurality of shaft members 11 are coupled to the horizontal members 12. A specific example of the shaft member 11 is a column. A specific example of the horizontal member 12 is a beam or a girder. The upper horizontal member 13 described later is one of the horizontal members 12. A specific example of the upper horizontal member 13 is a beam or a girder.

[0024] The structural frame 10 may include inclined members that extend diagonally with respect to the vertical direction DZ. The inclined members are connected to the axial members 11 or the horizontal members 12. Exterior panels 16 and interior panels 17 are attached to the structural frame 10. The exterior wall 15 is composed of the axial members 11 of the structural frame 10, the exterior panels 16, and the interior panels 17. The exterior wall 15 has thermal insulation material (not shown).

[0025] The building body 2 is provided with a mounting structure 20 for a ventilation fan 19. The building body 2 is provided with a ventilation fan 19. The ventilation fan 19 is attached to the cylindrical body 30 of the mounting structure 20 for the ventilation fan 19. The cylindrical body 30 is positioned on the exterior wall 15 so as to penetrate the exterior wall 15 in the depth direction DY. The cylindrical body 30 is configured as a rectangle or in the positive direction when viewed from the front. The outer opening end 30A on the outdoor side of the cylindrical body 30 is exposed to the outside (see Figure 5). The outer opening end 30A of the cylindrical body 30 is covered by the ventilation fan hood 19A (see Figure 5).

[0026] [Ventilation fan mounting structure] The mounting structure 20 for the ventilation fan 19 will be described with reference to Figures 2 to 6. Figure 2 shows the mounting structure 20 for the ventilation fan 19. Figure 3 shows the frame 21 with the exterior panel 16 and cylindrical body 30 removed from the mounting structure 20 for the ventilation fan 19 in Figure 2. Figure 4 shows a vertical cross-sectional view of the mounting structure 20 for the ventilation fan 19 with the cylindrical body 30 removed from the mounting structure 20 for the ventilation fan 19 in Figure 2. Figure 5 shows a cross-sectional view of the mounting structure 20 for the ventilation fan 19 along D5-D5 in Figure 2 with the ventilation fan 19 mounted on the cylindrical body 30. Figure 6 shows a cross-sectional view of the mounting structure 20 for the ventilation fan 19 along D6-D6 in Figure 2 with the ventilation fan 19 mounted on the cylindrical body 30.

[0027] The mounting structure 20 for the ventilation fan 19 comprises a first shaft member 23, a second shaft member 24, a first connecting member 25, and a second connecting member 26. The mounting structure 20 for the ventilation fan 19 further comprises a cylindrical body 30.

[0028] In other words, the mounting structure 20 for the ventilation fan 19 is configured as a frame 21 on which the cylindrical body 30 is provided. Specifically, the mounting structure 20 for the ventilation fan 19 comprises a frame 21 and a cylindrical body 30. The frame 21 is attached to the structural frame 10 of the building body 2. The frame 21 comprises the first axial member 23, the second axial member 24, the first connecting member 25, and the second connecting member 26. The frame 21 further comprises a first vertical member 27 and a second vertical member 28. The frame 21 is a structure in which these members are integrally joined. The frame 21 is manufactured in advance at a factory. The first axial member 23, the second axial member 24, the first connecting member 25, the second connecting member 26, the first vertical member 27, and the second vertical member 28 are joined by welding or brazing. The cylindrical body 30 and the frame 21 may also be configured as a single unit. The unit, which consists of the cylindrical body 30 and the frame 21, is manufactured in advance at the factory.

[0029] As shown in Figure 3, in this embodiment, the frame 21 of the mounting structure 20 for the ventilation fan 19 is provided between the upper horizontal member 13 and the lower base 4 of the building body 2. The upper horizontal member 13 is positioned above the lower base 4. The upper horizontal member 13 extends parallel to the lower base 4.

[0030] In this embodiment, the mounting structure 20 for the ventilation fan 19 further includes a plurality of exterior panels 16.

[0031] [First shaft member and second shaft member] As shown in Figure 3, the first shaft member 23 extends in the vertical direction DZ. The first shaft member 23 is positioned between the lower base 4 and the upper horizontal member 13 in the vertical direction DZ. The first shaft member 23 is attached to the lower base 4 and the upper horizontal member 13.

[0032] The first shaft member 23 is fixed to the building body 2 by an upper fixing member 41 and a lower fixing member 42. Specifically, the first shaft member 23 is fixed to the upper horizontal member 13 by the upper fixing member 41 and to the lower base 4 by the lower fixing member 42.

[0033] As shown in Figure 3, the second shaft member 24 extends in the vertical direction DZ. The second shaft member 24 is positioned between the lower base 4 and the upper horizontal member 13 in the vertical direction DZ. The second shaft member 24 is positioned at a distance DX from the first shaft member 23. The second shaft member 24 is attached to the lower base 4 and the upper horizontal member 13.

[0034] The second shaft member 24 is fixed to the building body 2 by an upper fixing member 41 and a lower fixing member 42, similar to the first shaft member 23. Specifically, the second shaft member 24 is fixed to the upper horizontal member 13 by the upper fixing member 41 and to the lower base 4 by the lower fixing member 42.

[0035] The first shaft member 23 and the second shaft member 24 are made of channel steel, angle steel, or square steel pipe. The upper fixing member 41 and the lower fixing member 42 are made of angle fittings. One end of the upper fixing member 41 attached to the first shaft member 23 is welded to the upper end of the first shaft member 23, and the other end is fixed to the upper horizontal member 13 with bolts and nuts. One end of the lower fixing member 42 attached to the first shaft member 23 is welded to the lower end of the first shaft member 23, and the other end is fixed to the lower base 4 with bolts and nuts. The upper fixing member 41 and the lower fixing member 42 attached to the second shaft member 24 are attached to the second shaft member 24 in the same way as the upper fixing member 41 and the lower fixing member 42 attached to the first shaft member 23.

[0036] [First connecting member and second connecting member] As shown in Figures 2 to 4, the first connecting member 25 extends in the lateral direction DX. The first connecting member 25 is positioned between the first shaft member 23 and the second shaft member 24. The first connecting member 25 is positioned parallel to the upper horizontal member 13. The first connecting member 25 connects the first shaft member 23 and the second shaft member 24.

[0037] The first connecting member 25 comprises a first outer surface portion 51 facing outwards, a first inner surface portion 52 facing inwards, and a first intermediate surface portion 53. The first intermediate surface portion 53 is the portion that connects the first outer surface portion 51 and the first inner surface portion 52. Specifically, the first intermediate surface portion 53 connects the lower end of the first outer surface portion 51 and the lower end of the first inner surface portion 52. The first inner surface portion 52 has a plurality of first fixing holes 54 for attaching the mounting member 60. The first connecting member 25 is made of channel steel or square steel pipe.

[0038] As shown in Figures 3 and 4, a panel temporary placement member 65 is provided on the first intermediate surface portion 53 of the first connecting member 25. The panel temporary placement member 65 is a member used by workers to temporarily place the exterior panel 16 immediately before the installation of the exterior panel 16. The panel temporary placement member 65 is provided so as to protrude outward from the first outer surface portion 51. The exterior panel 16 is temporarily placed on the portion of the panel temporary placement member 65 that protrudes outward.

[0039] As shown in Figures 2 to 4, the second connecting member 26 extends in the lateral direction DX. The second connecting member 26 is positioned between the first shaft member 23 and the second shaft member 24. The second connecting member 26 is positioned below the first connecting member 25. The second connecting member 26 is positioned parallel to the first connecting member 25. The second connecting member 26 connects the first shaft member 23 and the second shaft member 24.

[0040] The second connecting member 26 comprises a first outer surface portion 51 facing outwards, a first inner surface portion 52 facing inwards, and a first intermediate surface portion 53. The first intermediate surface portion 53 is the portion that connects the first outer surface portion 51 and the first inner surface portion 52. Specifically, the first intermediate surface portion 53 connects the upper end of the first outer surface portion 51 and the upper end of the first inner surface portion 52. The first inner surface portion 52 has a plurality of first fixing holes 54 for attaching the mounting member 60. The second connecting member 26 is made of channel steel or square steel pipe.

[0041] [First vertical member and second vertical member] The first vertical member 27 is positioned between the first connecting member 25 and the second connecting member 26. The first vertical member 27 comprises a second outer surface portion 55 facing outwards, a second inner surface portion 56 facing inwards, and a second intermediate surface portion 57 connecting the second outer surface portion 55 and the second inner surface portion 56. The second inner surface portion 56 of the first vertical member 27 has a plurality of second fixing holes 58 for attaching the mounting member 60. The first vertical member 27 is made of channel steel or square steel pipe.

[0042] The second vertical member 28 is positioned between the first connecting member 25 and the second connecting member 26. The second vertical member 28 is positioned at a distance from the first vertical member 27 in the lateral direction DX, intersecting the vertical direction DZ. The second vertical member 28 comprises a second outer surface portion 55 facing outwards, a second inner surface portion 56 facing inwards, and a second intermediate surface portion 57 connecting the second outer surface portion 55 and the second inner surface portion 56. The second inner surface portion 56 of the second vertical member 28 has a plurality of second fixing holes 58 for attaching the mounting member 60. The second vertical member 28 is made of channel steel or square steel pipe.

[0043] [frame] The first shaft member 23, the second shaft member 24, the first connecting member 25, and the second connecting member 26 are integrally constructed. Specifically, in this embodiment, the first shaft member 23, the second shaft member 24, the first connecting member 25, the second connecting member 26, the first vertical member 27, and the second vertical member 28 are integrated to form a frame 21.

[0044] The frame 21 includes an exterior panel mounting section 22A and a cylindrical body mounting section 22B. The exterior panel mounting section 22A is the part to which the exterior panel 16 is attached. The cylindrical body mounting section 22B is the part to which the cylindrical body 30 is attached.

[0045] The exterior panel mounting portion 22A is provided on the outer surface side of the frame 21. The exterior panel mounting portion 22A has a first outer surface portion 51 of the first connecting member 25, a first outer surface portion 51 of the second connecting member 26, a second outer surface portion 55 of the first vertical member 27, and a second outer surface portion 55 of the second vertical member 28.

[0046] The cylindrical mounting portion 22B is provided on the inner surface side of the frame 21. The cylindrical mounting portion 22B has a first inner surface portion 52 of the first connecting member 25, a first inner surface portion 52 of the second connecting member 26, a second inner surface portion 56 of the first vertical member 27, and a second inner surface portion 56 of the second vertical member 28.

[0047] [Cylinder] As shown in Figures 5 and 6, the cylindrical body 30 connects the inner space and the outer space of the outer wall 15. The cylindrical body 30 is provided between the first shaft member 23 and the second shaft member 24 and between the first connecting member 25 and the second connecting member 26. In this embodiment, the mounting structure 20 of the ventilation fan 19 is provided with a first vertical member 27 and a second vertical member 28. In this case, the cylindrical body 30 is provided in the opening 29 having the following configuration. The opening 29 is the portion between the first vertical member 27 and the second vertical member 28 and between the first connecting member 25 and the second connecting member 26.

[0048] In the cylindrical body 30, the outer opening end 30A of the cylindrical body 30 is located near the outer surface of the outer wall 15, and the inner opening end 30B of the cylindrical body 30 is located near the inner surface of the outer wall 15.

[0049] The cylindrical body 30 has an upper surface portion 31, a lower surface portion 32 located below the upper surface portion 31, a first side portion 33, and a second side portion 34. The first side portion 33 connects the upper surface portion 31 and the lower surface portion 32. The second side portion 34 is positioned opposite the first side portion 33 and connects the upper surface portion 31 and the lower surface portion 32.

[0050] The cylindrical body 30 is fixed to the first connecting member 25 and the second connecting member 26 by the mounting member 60. Alternatively, as in this embodiment, the cylindrical body 30 may be fixed to the first connecting member 25, the second connecting member 26, the first vertical member 27, and the second vertical member 28 by the mounting member 60.

[0051] Specifically, the upper surface 31 of the cylindrical body 30 is fixed to the first inner surface 52 of the first connecting member 25 by the mounting member 60. The lower surface 32 of the cylindrical body 30 is fixed to the first inner surface 52 of the second connecting member 26 by the mounting member 60. The first side surface 33 of the cylindrical body 30 is fixed to the second inner surface 56 of the first vertical member 27 by the mounting member 60. The second side surface 34 of the cylindrical body 30 is fixed to the second inner surface 56 of the second vertical member 28 by the mounting member 60.

[0052] The mounting member 60 is made of an angle fitting. The mounting member 60 has a first mounting portion 61 and a second mounting portion 62 that intersects the first mounting portion 61. The mounting members 60 are fixed to the upper portion 31, lower portion 32, first side portion 33, and second side portion 34 of the cylindrical body 30. The first mounting portion 61 of each mounting member 60 is fixed to the cylindrical body 30.

[0053] As shown in Figure 5, the second mounting portion 62 of the mounting member 60 fixed to the upper surface portion 31 of the cylindrical body 30 is fixed to the first connecting member 25 by a bolt and nut that pass through the first fixing hole 54 of the first inner surface portion 52 of the first connecting member 25. The second mounting portion 62 of the mounting member 60 fixed to the lower surface portion 32 of the cylindrical body 30 is fixed to the second connecting member 26 by a bolt and nut that pass through the first fixing hole 54 of the first inner surface portion 52 of the second connecting member 26.

[0054] As shown in Figure 6, the second mounting portion 62 of the mounting member 60 fixed to the first side portion 33 of the cylindrical body 30 is fixed to the first vertical member 27 by a bolt and nut that pass through the second fixing hole 58 of the second inner surface portion 56 of the first vertical member 27. The second mounting portion 62 of the mounting member 60 fixed to the second side portion 34 of the cylindrical body 30 is fixed to the second vertical member 28 by a bolt and nut that pass through the second fixing hole 58 of the second inner surface portion 56 of the second vertical member 28.

[0055] A ventilation fan 19 is attached to the cylindrical body 30. Specifically, the ventilation fan 19 is attached to the indoor-side inner opening end 30B of the cylindrical body 30.

[0056] A vibration damping material 38 is provided between the cylindrical body 30 and the mounting member 60. The vibration damping material 38 is made of an elastic material. Examples of elastic materials include rubber, silicone, and porous resin materials.

[0057] Insulating material 66 is placed around the cylindrical body 30. Specifically, the insulating material 66 is provided on the upper side of the upper surface portion 31 of the cylindrical body 30, the lower side of the lower surface portion 32, the outside of the first side portion 33, and the outside of the second side portion 34.

[0058] [Exterior Panels] Referring to Figure 2, the arrangement of the exterior panels 16 in the mounting structure 20 of the ventilation fan 19 will be explained. One of the exterior panels 16 is fixed to the first outer surface 51 of the first connecting member 25. Another exterior panel 16 is fixed to the first outer surface 51 of the second connecting member 26. Another exterior panel 16 is fixed to the second outer surface 55 of the first vertical member 27. Another exterior panel 16 is fixed to the second outer surface 55 of the second vertical member 28.

[0059] As shown in Figures 2 and 4, the exterior panel 16 comprises an exterior panel body 16A and an engaging fitting 16B provided on the back surface of the exterior panel body 16A. The engaging fitting 16B has engaging claws 16C. The engaging claws 16C of the engaging fitting 16B are hooked onto the frame 21 or the panel engaging portion 68, thereby attaching the exterior panel 16 to the mounting structure 20 of the ventilation fan 19.

[0060] Specifically, the exterior panel 16 positioned near the upper horizontal member 13 has at least two engaging fittings 16B. One engaging fitting 16B of the exterior panel 16 engages with a panel engaging portion 68 provided on the upper horizontal member 13. The other engaging fitting 16B engages with the first connecting member 25. One engaging fitting 16B of the exterior panel 16 positioned on the lower base 4 engages with a panel engaging portion 68 provided on the lower base 4. The other engaging fitting 16B engages with the second connecting member 26. Other exterior panels 16 are similarly attached to the ventilation fan 19 mounting structure 20 by engaging fittings 16B.

[0061] [Operation of this embodiment] Conventionally, the ventilation fan 19 is attached to a reinforcing plate provided on the exterior wall 15. In this case, an opening for the cylindrical body 30 is made in the reinforcing plate on site. The size of the opening is formed to match the size of the cylindrical body 30. In this way, the mounting structure 20 for the ventilation fan 19 is installed on the exterior wall 15 through on-site work. Since this work requires manpower, if there is insufficient manpower, it may take a considerable amount of time to install the mounting structure 20 for the ventilation fan 19.

[0062] The mounting structure 20 for the ventilation fan 19 in this embodiment comprises a first shaft member 23, a second shaft member 24, a first connecting member 25, a second connecting member 26, and a cylindrical body 30. Such a mounting structure 20 for the ventilation fan 19 is installed on the building frame 10 when the building frame 1 is constructed. Therefore, the mounting structure 20 for the ventilation fan 19 can be installed as part of the construction process of the building frame 10, thereby improving work efficiency.

[0063] Furthermore, the first shaft member 23, the second shaft member 24, the first connecting member 25, and the second connecting member 26 are integrally constructed. Specifically, the first shaft member 23, the second shaft member 24, the first connecting member 25, and the second connecting member 26 are pre-assembled as a single unit at the factory. Therefore, at the construction site, the mounting structure 20 for the ventilation fan 19 can be constructed by attaching the frame 21, which is an integral part of the first shaft member 23, the second shaft member 24, the first connecting member 25, and the second connecting member 26, to the building structure 10. In this way, the ease of constructing the mounting structure 20 for the ventilation fan 19 at the construction site can be improved.

[0064] [Effects of this embodiment] The effects of this embodiment will now be explained. (1) The mounting structure 20 of the ventilation fan 19 comprises a first shaft member 23, a second shaft member 24, a first connecting member 25, a second connecting member 26, and a cylindrical body 30. The cylindrical body 30 is fixed to the first connecting member 25 and the second connecting member 26 by a mounting member 60.

[0065] In this configuration, the ventilation fan 19 is supported by a frame 21 composed of a first shaft member 23, a second shaft member 24, a first connecting member 25, and a second connecting member 26. Since the load of the ventilation fan 19 is applied to the building structure 10 via the frame 21, the load applied to the exterior panel 16 or interior material of the exterior wall 15 can be reduced. This improves the strength of the mounting structure 20 for the ventilation fan 19.

[0066] Since the first shaft member 23 and the second shaft member 24 are attached to the building frame 10, the first shaft member 23 and the second shaft member 24 can be installed on the building frame 10 during its construction. Furthermore, since the first connecting member 25 and the second connecting member 26 are connected to the first shaft member 23 and the second shaft member 24, the first connecting member 25 and the second connecting member 26 can be connected to the first shaft member 23 and the second shaft member 24 during the construction of the building frame 10. In this way, since these members can be assembled to the building frame 10 during its construction, the ease of installation of the ventilation fan 19 mounting structure can be improved.

[0067] (2) The first shaft member 23, the second shaft member 24, the first connecting member 25, and the second connecting member 26 are integrally constructed. With this configuration, since the first shaft member 23, the second shaft member 24, the first connecting member 25, and the second connecting member 26 are integrally constructed, the frame 21 including these members can be easily fixed to the building structure 10. This improves the constructability of the exterior wall 15, including the mounting structure 20 for the ventilation fan 19.

[0068] Furthermore, the first shaft member 23, the second shaft member 24, the first connecting member 25, the second connecting member 26, the first vertical member 27, and the second vertical member 28 may be integrally formed. With this configuration, since the first shaft member 23, the second shaft member 24, the first connecting member 25, the second connecting member 26, the first vertical member 27, and the second vertical member 28 are integrally formed, the frame 21 including these members can be easily fixed to the building structure 10. This improves the constructability of the exterior wall 15, including the mounting structure 20 for the ventilation fan 19.

[0069] (3) The mounting structure 20 for the ventilation fan 19 comprises a first shaft member 23, a second shaft member 24, a first connecting member 25, a second connecting member 26, a first vertical member 27, a second vertical member 28, and a cylindrical body 30. The cylindrical body 30 is provided in the opening 29 between the first vertical member 27 and the second vertical member 28 and between the first connecting member 25 and the second connecting member 26. The cylindrical body 30 is fixed to the first connecting member 25, the second connecting member 26, the first vertical member 27, and the second vertical member 28 by the mounting member 60. With this configuration, the strength of the frame 21 supporting the ventilation fan 19 can be improved by the first vertical member 27 and the second vertical member 28. In addition, the cylindrical body 30 can be firmly fixed.

[0070] (4) In the mounting structure 20 of the ventilation fan 19, one of the exterior panels 16 is fixed to the first outer surface 51 of the first connecting member 25. The other exterior panel 16 is fixed to the first outer surface 51 of the second connecting member 26. The upper surface 31 of the cylindrical body 30 is fixed to the first inner surface 52 of the first connecting member 25 by the mounting member 60. The lower surface 32 of the cylindrical body 30 is fixed to the first inner surface 52 of the second connecting member 26 by the mounting member 60.

[0071] With this configuration, the exterior panel 16 can be fixed to the first outer surface portion 51 of the first connecting member 25 and the second connecting member 26, and the cylindrical body 30 can be fixed to the first inner surface portion 52 of the first connecting member 25 and the second connecting member 26.

[0072] (5) In the mounting structure 20 of the ventilation fan 19, the upper surface 31 of the cylindrical body 30 is fixed to the first inner surface 52 of the first connecting member 25 by the mounting member 60. The lower surface 32 of the cylindrical body 30 is fixed to the first inner surface 52 of the second connecting member 26 by the mounting member 60. The first side surface 33 of the cylindrical body 30 is fixed to the second inner surface 56 of the first vertical member 27 by the mounting member 60. The second side surface 34 of the cylindrical body 30 is fixed to the second inner surface 56 of the second vertical member 28 by the mounting member 60. With this configuration, the cylindrical body 30 can be fixed to the frame 21 from four directions by the mounting member 60. This improves the fixing strength of the cylindrical body 30 to the frame 21.

[0073] (6) The first shaft member 23 and the second shaft member 24 are fixed to the upper horizontal member 13 by the upper fixing member 41 and to the lower base 4 by the lower fixing member 42. With this configuration, the first shaft member 23 and the second shaft member 24 can be easily fixed to the frame 10 by the upper fixing member 41 and the lower fixing member 42.

[0074] (7) A vibration damping material 38 is provided between the cylindrical body 30 and the mounting member 60. With this configuration, the vibrations when the ventilation fan 19 is operating can be absorbed by the vibration damping material 38, thereby suppressing the vibrations transmitted to the frame 21. As a result, vibrations of the exterior wall 15 can be suppressed.

[0075] (8) In the mounting structure 20 of the ventilation fan 19 described in (4) above, the first inner surface portion 52 of the first connecting member 25 and the first inner surface portion 52 of the second connecting member 26 each have a plurality of first fixing holes 54 for attaching the mounting member 60. With this configuration, the mounting member 60 can be easily fixed to the first connecting member 25 and the second connecting member 26. For this reason, the cylindrical body 30 is easy to attach to the first connecting member 25 and the second connecting member 26.

[0076] (9) The second inner surface portion 56 of the first vertical member 27 and the second inner surface portion 56 of the second vertical member 28 each have a plurality of second fixing holes 58 for attaching the mounting member 60. With this configuration, the mounting member 60 can be easily fixed to the first vertical member 27 and the second vertical member 28. For this reason, the cylindrical body 30 is easy to attach to the first vertical member 27 and the second vertical member 28.

[0077] (10) The building 1 comprises a building body 2. The building body 2 is provided with a mounting structure 20 for one of the above-described ventilation fans 19. In the mounting structure 20 for the ventilation fan 19, the ventilation fan 19 is attached to the cylindrical body 30. With this configuration, the constructability of the building 1 having the mounting structure 20 for the ventilation fan 19 can be improved.

[0078] <Variation> The above embodiment is an example of possible forms for the mounting structure 20 of the ventilation fan 19 and the building 1, and is not intended to limit their form. The mounting structure 20 of the ventilation fan 19 and the building 1 may take forms different from those exemplified in the above embodiment. Examples include forms in which some of the configurations of the embodiment are replaced, modified, or omitted, or forms in which new configurations are added to the embodiment. Modifications of the embodiment are shown below.

[0079] In this embodiment, the cylindrical body 30 is fixed to the first connecting member 25 and the second connecting member 26 by the mounting member 60. In this embodiment, the mounting member 60 is made of an angle fitting. The mounting member 60 for attaching the cylindrical body 30 may be a bolt and nut or a screw.

[0080] In the mounting structure 20 of the ventilation fan 19, the first vertical member 27 and the second vertical member 28 may be omitted. In this case, the first side portion 33 and the second side portion 34 of the cylindrical body 30 do not need to be fixed to the frame 21, and may be fixed to the first connecting member 25 and the second connecting member 26 by angle fittings.

[0081] In the mounting structure 20 of the ventilation fan 19, the first vertical member 27 and the second vertical member 28 may be omitted, and the first side portion 33 and the second side portion 34 of the cylindrical body 30 may be fixed to the first shaft member 23 and the second shaft member 24 by fittings.

[0082] In the mounting structure 20 of the ventilation fan 19, the distance between the first vertical member 27 and the second vertical member 28 may be set to an exact distance that allows the cylindrical body 30 to fit inside.

[0083] In the mounting structure 20 for the ventilation fan 19, the size of the opening 29 should be such that a cylindrical body 30 can be inserted through it. The size of the opening 29 may be configured to accommodate multiple cylindrical bodies 30 of different sizes.

[0084] This specification discloses the following technologies: [Note 1] Note 1 describes the mounting structure of the ventilation fan. The mounting structure of the ventilation fan is the mounting structure of the ventilation fan in a building. The mounting structure of the ventilation fan comprises a first shaft member, a second shaft member, a first connecting member, a second connecting member, and a cylindrical body. The first axial member is positioned in the vertical direction between the lower base of the building and the upper horizontal member positioned above the lower base in the building, and is attached to the lower base and the upper horizontal member. The second shaft member is positioned between the lower base and the upper horizontal member in the vertical direction and is attached to the lower base and the upper horizontal member, and is positioned at a distance from the first shaft member. The first connecting member is positioned between the first shaft member and the second shaft member, and connects the first shaft member and the second shaft member. The second connecting member is positioned below the first connecting member between the first shaft member and the second shaft member, and connects the first shaft member and the second shaft member. The cylindrical body is provided between the first shaft member and the second shaft member and between the first connecting member and the second connecting member, connecting the inner space and the outer space of the outer wall, and a ventilation fan is attached to it. The cylindrical body is fixed to the first connecting member and the second connecting member by an attachment member.

[0085] [Note 2] In the ventilation fan mounting structure described in Appendix 1, the first shaft member, the second shaft member, the first connecting member, and the second connecting member are integrally formed.

[0086] [Note 3] The ventilation fan mounting structure described in Appendix 1 further comprises a first vertical member disposed between the first connecting member and the second connecting member, and a second vertical member disposed at a distance from the first vertical member in the horizontal direction intersecting the vertical direction. The cylindrical body is provided in the opening between the first vertical member and the second vertical member and between the first connecting member and the second connecting member. The cylindrical body is fixed to the first connecting member, the second connecting member, the first vertical member, and the second vertical member by the mounting member.

[0087] [Note 4] The ventilation fan mounting structure described in Appendix 3 further comprises multiple exterior panels. The cylindrical body has an upper surface, a lower surface located below the upper surface, a first side surface connecting the upper surface and the lower surface, and a second side surface positioned opposite the first side surface and connecting the upper surface and the lower surface. Each of the first and second connecting members comprises a first outer surface facing outwards, a first inner surface facing inwards, and a first intermediate surface connecting the first outer surface and the first inner surface. One of the exterior panels is fixed to the first outer surface of the first connecting member. The other exterior panel is fixed to the first outer surface of the second connecting member. The upper surface of the cylindrical body is fixed to the first inner surface of the first connecting member by the mounting member. The lower surface of the cylindrical body is fixed to the first inner surface of the second connecting member by the mounting member.

[0088] [Note 5] In the ventilation fan mounting structure described in Appendix 4, the first vertical member and the second vertical member each have a second outer surface facing outwards, a second inner surface facing inwards, and a second intermediate surface connecting the second outer surface and the second inner surface. The first side surface of the cylindrical body is fixed to the second inner surface of the first vertical member by the mounting member. The second side surface of the cylindrical body is fixed to the second inner surface of the second vertical member by the mounting member.

[0089] [Note 6] In the ventilation fan mounting structure described in Appendix 1, the first shaft member and the second shaft member are fixed to the upper horizontal member by an upper fixing member and to the lower base by a lower fixing member.

[0090] [Note 7] In the ventilation fan mounting structure described in Appendix 1, a vibration damping material is provided between the cylindrical body and the mounting member.

[0091] [Note 8] In the ventilation fan mounting structure described in Appendix 4, the first inner surface portion of the first connecting member and the first inner surface portion of the second connecting member each have a plurality of first fixing holes for attaching the mounting member.

[0092] [Note 9] In the ventilation fan mounting structure described in Appendix 5, the second inner surface portion of the first vertical member and the second inner surface portion of the second vertical member each have a plurality of second fixing holes for attaching the mounting member.

[0093] [Note 10] Note 10 is a building having a ventilation fan. The building comprises a building body. The building body is provided with a ventilation fan mounting structure as described in any one of claims 1 to 9. The ventilation fan is mounted on the cylindrical body. [Explanation of Symbols]

[0094] DX...horizontal direction, DZ...vertical direction, 1...building, 2...building body, 4...lower base, 13...upper horizontal member, 15...exterior wall, 16...exterior panel, 19...ventilation fan, 20...mounting structure, 23...first axis member, 24...second axis member, 25...first connecting member, 26...second connecting member, 27...first vertical member, 28...second vertical member, 29...opening, 30...cylinder body, 31...upper surface part, 32...lower surface part, 33...first side surface part, 34...second side surface part, 38...damping material, 41...upper fixing member, 42...lower side fixing member, 51...first outer surface part, 5 2...first inner surface part, 53...first intermediate surface part, 54...first fixing hole, 55...second outer surface part, 56...second inner surface part, 57...second intermediate surface part, 58...second fixing hole, 60...attachment member.

Claims

1. A mounting structure for ventilation fans in buildings, A first axial member is positioned between the lower base of the building and the upper horizontal member positioned above the lower base in the building, and is attached to the lower base and the upper horizontal member. A second shaft member is positioned between the lower base and the upper horizontal member in the vertical direction, attached to the lower base and the upper horizontal member, and positioned at a distance from the first shaft member, A first connecting member is positioned between the first shaft member and the second shaft member and connects the first shaft member and the second shaft member, A second connecting member is positioned below the first connecting member between the first shaft member and the second shaft member, and connects the first shaft member and the second shaft member. The device comprises a cylindrical body provided between the first shaft member and the second shaft member and between the first connecting member and the second connecting member, which connects the inner space and the outer space of the outer wall and to which a ventilation fan is attached, The cylindrical body is fixed to the first connecting member and the second connecting member by an attachment member. Ventilation fan mounting structure.

2. The first shaft member, the second shaft member, the first connecting member, and the second connecting member are integrally formed. The mounting structure for a ventilation fan according to claim 1.

3. The device further comprises a first vertical member positioned between the first connecting member and the second connecting member, and a second vertical member positioned at a distance from the first vertical member in the horizontal direction intersecting the vertical direction, The cylindrical body is provided in the opening between the first vertical member and the second vertical member and between the first connecting member and the second connecting member, The cylindrical body is fixed to the first connecting member, the second connecting member, the first vertical member, and the second vertical member by the mounting member. The mounting structure for a ventilation fan according to claim 1.

4. It also features multiple exterior panels, The cylindrical body has an upper surface portion, a lower surface portion located below the upper surface portion, a first side surface portion connecting the upper surface portion and the lower surface portion, and a second side surface portion arranged opposite the first side surface portion and connecting the upper surface portion and the lower surface portion. Each of the first connecting member and the second connecting member comprises a first outer surface facing outwards, a first inner surface facing inwards, and a first intermediate surface connecting the first outer surface and the first inner surface. One of the exterior panels is fixed to the first outer surface of the first connecting member, Another of the exterior panels is fixed to the first outer surface of the second connecting member, The upper surface of the cylindrical body is fixed to the first inner surface of the first connecting member by the mounting member. The lower surface portion of the cylindrical body is fixed to the first inner surface portion of the second connecting member by the mounting member. The mounting structure for a ventilation fan according to claim 3.

5. Each of the first and second vertical members comprises a second outer surface facing outwards, a second inner surface facing inwards, and a second intermediate surface connecting the second outer surface and the second inner surface. The first side surface of the cylindrical body is fixed to the second inner surface of the first vertical member by the mounting member. The second side portion of the cylindrical body is fixed to the second inner surface portion of the second vertical member by the mounting member. The mounting structure for a ventilation fan according to claim 4.

6. The first shaft member and the second shaft member are each fixed to the upper horizontal member by an upper fixing member and to the lower base by a lower fixing member. The mounting structure for a ventilation fan according to claim 1.

7. A vibration damping material is provided between the cylindrical body and the mounting member. The mounting structure for a ventilation fan according to claim 1.

8. Each of the first inner surface portion of the first connecting member and the first inner surface portion of the second connecting member has a plurality of first fixing holes for attaching the mounting member. The mounting structure for a ventilation fan according to claim 4.

9. Each of the second inner surface portion of the first vertical member and the second inner surface portion of the second vertical member has a plurality of second fixing holes for attaching the mounting member. The mounting structure for a ventilation fan according to claim 5.

10. A building equipped with a ventilation fan, Equipped with the main building structure, The building body is provided with a ventilation fan mounting structure according to any one of claims 1 to 9. The ventilation fan is attached to the cylindrical body. architecture.

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