Ventilation fan mounting structure and building

Abstract

To provide a ventilation fan mounting structure and a building that can improve the workability of exterior walls and buildings having the ventilation fan mounting structure. [Solution] The ventilation fan mounting structure 20 includes 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, communicates the inner space with the outer space of the outer wall 15, and has a ventilation fan mounted thereon. 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 a ventilation fan mounting structure and a building. [Background technology]

[0002] To ventilate the interior of a building, a ventilation fan is installed on the exterior wall. The ventilation fan is attached to a through-hole provided in the exterior wall. An example in which a mounting frame is used as a mounting structure for the ventilation fan is known. In the example described in Patent Document 1, an exterior frame is attached to a through-hole formed in the exterior wall. Then, an inner frame is attached to the inside of the exterior frame, and an interior frame is attached to the inside of the inner frame. The ventilation fan is attached to the interior frame.

[0003] In order to mount the ventilation fan on the exterior wall, a reinforcing plate may be attached to the exterior wall around the through hole to reinforce the area around the through hole. The ventilation fan is fixed to the reinforcing plate. The reinforcing plate strengthens the exterior wall, improving the mounting strength of the ventilation fan. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 11-230589 Summary of the Invention [Problem to be solved by the invention]

[0005] When reinforcing an exterior wall with a reinforcing plate, it is necessary to fix the reinforcing plate to the location where the ventilation fan is to be installed, drill a through hole in the reinforcing plate, and then insert a frame or the like through the through hole in the reinforcing plate. As such, installing a ventilation fan on an exterior wall requires a lot of work. [Means for solving the problem]

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

[0007] With this configuration, the ventilation fan is supported by a frame made up of a first shaft member, a second shaft member, a first connecting member, and a second connecting member. Because the load of the ventilation fan is applied to the building frame via the frame, the load applied to the exterior panel of the exterior wall or the interior material can be reduced. This improves the strength of the ventilation fan mounting structure.

[0008] Because the first shaft member and the second shaft member are attached to the skeleton, the first shaft member and the second shaft member can be installed on the skeleton when the skeleton is constructed. Also, because the first connecting member and the second connecting member are connected to the first shaft member and the second shaft member, the first connecting member and the second connecting member can be connected to the first shaft member and the second shaft member when the skeleton is constructed. In this way, these members can be assembled to the skeleton when the skeleton is constructed, which improves the ease of construction of the ventilation fan mounting structure.

[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 configured. With this configuration, the first shaft member, the second shaft member, the first connecting member, and the second connecting member are integrally configured, which improves the workability of the exterior wall including the ventilation fan mounting structure.

[0010] (3) The ventilation fan mounting structure described in (1) above further includes 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 a horizontal direction intersecting the vertical direction, and the cylinder is provided in an opening between the first vertical member and the second vertical member and between the first connecting member and the second connecting member, and the cylinder 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 first vertical member and the second vertical member can improve the strength of the frame supporting the ventilation fan. Furthermore, the cylinder can be firmly fixed.

[0011] (4) The mounting structure for a ventilation fan described in (3) above further includes a plurality of exterior panels, and the cylindrical body has an upper surface portion, a lower surface portion located lower than 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, and the first connecting member and the second connecting member each have a first outer surface portion facing the outside of the room, a first inner surface portion facing the inside of the room, and a first intermediate surface portion connecting the first outer surface portion and the first inner surface portion, one of the exterior panels is fixed to the first outer surface portion of the first connecting member, and the other of the exterior panels is fixed to the first outer surface portion of the second connecting member, the upper surface portion of the cylindrical body is fixed to the first inner surface portion of the first connecting member by the mounting member, and 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. According to this configuration, the exterior panel can be fixed to the first outer surface portions of the first connecting member and the second connecting member, and the cylindrical body can be fixed to the first inner surface portions 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 portion facing the outside of the room, a second inner surface portion facing the inside of the room, and a second intermediate surface portion connecting the second outer surface portion and the second inner surface portion, and the first side surface portion of the cylinder is fixed to the second inner surface portion of the first vertical member by the mounting member, and the second side surface portion of the cylinder is fixed to the second inner surface portion of the second vertical member by the mounting member. With this configuration, the cylinder can be fixed to the frame from four directions by the mounting members, thereby improving the fixing strength of the cylinder 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 each fixed to the upper cross member by an upper fixing member and fixed 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 frame 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 cylinder and the mounting member. With this configuration, vibrations generated when the ventilation fan operates 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 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 mounting the mounting member. With this configuration, the mounting member can be easily fixed to the first connecting member and the second connecting member. Therefore, it is easy to mount the cylindrical body to the first connecting member and the second connecting member.

[0016] (9) In the ventilation fan mounting structure described in (5) above, 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. With 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 cylinder to the first vertical member and the second vertical member.

[0017] (10) A building that solves the problem includes a building body, the building body is provided with the ventilation fan mounting structure described in any one of (1) to (9) above, and the ventilation fan is mounted to the cylindrical body. This configuration improves the ease of construction of a building having a ventilation fan mounting structure. [Effects of the Invention]

[0018] According to the ventilation fan mounting structure and building of the present disclosure, the workability of exterior walls and buildings having a ventilation fan mounting structure can be improved. [Brief explanation of the drawings]

[0019] [Figure 1] 1 is a schematic diagram of a building according to an embodiment. [Figure 2] FIG. 2 is a diagram showing the outer portion of an exterior wall of a building according to an embodiment, as viewed from the indoor side. [Figure 3] 1 is a diagram showing a structure for mounting a ventilation fan on an exterior wall of a building according to an embodiment. [Figure 4] 4 is a cross-sectional view of the ventilation fan mounting structure taken along line D4-D4 in FIG. 2. [Figure 5] 5 is a cross-sectional view of the ventilation fan mounting structure taken along line D5-D5 in FIG. 2. [Figure 6] 6 is a cross-sectional view of the ventilation fan mounting structure taken along line D6-D6 in FIG. 2. DETAILED DESCRIPTION OF THE INVENTION

[0020] 1 to 6, a building 1 and a mounting structure 20 for a ventilation fan 19 according to this embodiment will be described. The mounting structure 20 for the ventilation fan 19 is a structure for mounting the ventilation fan 19 in the building 1. In this embodiment, the building 1 is a two-story house. The first floor refers to the floor closest to the ground. In this embodiment, a front view refers to the direction when viewing the mounting structure 20 for the ventilation fan 19 from inside the room. The up-down direction DZ refers to a direction along the vertical direction. The lateral direction DX refers to a direction that intersects the up-down direction DZ and is along the cross member 12 on which the mounting structure 20 for the ventilation fan 19 is arranged in the building 1. The depth direction DY refers to a direction that intersects the up-down direction DZ and the lateral direction DX.

[0021] [Buildings] As shown in Fig. 1, a building 1 includes a building main body 2. The building 1 also includes a ventilation fan 19. The ventilation fan 19 forcibly exhausts indoor air to the outside. The ventilation fan 19 is provided in the building main body 2.

[0022] As shown in FIG. 1, the building body 2 has a foundation 3 and a skeleton 10 placed on the foundation 3. The foundation 3 is made of reinforced concrete. A lower base 4, which will be described later, is the portion of the foundation 3 that is placed below an upper cross member 13, which will be described later. The lower base 4 may also be a base placed on the foundation 3. Furthermore, if a ventilation fan 19 is installed on the second floor, the cross member 12 placed near the floor of the second floor corresponds to the lower base 4.

[0023] The body 10 comprises an axial member 11 extending in the vertical direction DZ, and a plurality of cross members 12. The cross members 12 are arranged so as to span the plurality of axial members 11. The plurality of axial members 11 are connected to the cross members 12. A specific example of the axial member 11 is a column. A specific example of the cross members 12 is a beam or a girder. An upper cross member 13, which will be described later, is one of the cross members 12. A specific example of the upper cross member 13 is a beam or a girder.

[0024] The skeleton 10 may include an inclined member extending obliquely relative to the vertical direction DZ. The inclined member is connected to the shaft member 11 or the cross member 12. An exterior panel 16 and an interior panel 17 are attached to the skeleton 10. An exterior wall 15 is formed by the shaft member 11 of the skeleton 10, the exterior panel 16, and the interior panel 17. The exterior wall 15 has a heat insulating material (not shown).

[0025] A mounting structure 20 for a ventilation fan 19 is provided in the building main body 2. The ventilation fan 19 is provided in the building main body 2. The ventilation fan 19 is attached to a cylindrical body 30 of the mounting structure 20 for the ventilation fan 19. The cylindrical body 30 is arranged on the exterior wall 15 so as to penetrate the exterior wall 15 in the depth direction DY. The cylindrical body 30 is configured in a rectangular or square shape when viewed from the front. An 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 a 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 the cylindrical body 30 removed from the mounting structure 20 for the ventilation fan 19 of 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 of Figure 2. Figure 5 shows a cross-sectional view of the mounting structure 20 for the ventilation fan 19 taken along line D5-D5 in Figure 2 with the ventilation fan 19 attached to the cylindrical body 30. Figure 6 shows a cross-sectional view of the mounting structure 20 for the ventilation fan 19 taken along line D6-D6 in Figure 2 with the ventilation fan 19 attached to the cylindrical body 30.

[0027] The mounting structure 20 for the ventilation fan 19 includes 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 includes 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 a cylindrical body 30 is provided. Specifically, the mounting structure 20 for the ventilation fan 19 includes the frame 21 and the cylindrical body 30. The frame 21 is attached to the skeleton 10 of the building main body 2. The frame 21 includes the first shaft member 23, the second shaft member 24, the first connecting member 25, and the second connecting member 26 described above. The frame 21 further includes a first vertical member 27 and a second vertical member 28. The frame 21 is a structure in which these members are joined together. The frame 21 is fabricated in advance at a factory. 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 joined together by welding or brazing. Alternatively, the cylindrical body 30 and the frame 21 may be configured as a single unit. The unit in which the cylindrical body 30 and the frame 21 are integrated is fabricated in advance in a 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 cross member 13 and the lower base 4 of the building main body 2. The upper cross member 13 is positioned above the lower base 4. The upper cross 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] 3, the first shaft member 23 extends in the vertical direction DZ. The first shaft member 23 is disposed between the lower base 4 and the upper cross member 13 in the vertical direction DZ. The first shaft member 23 is attached to the lower base 4 and the upper cross member 13.

[0032] The first shaft member 23 is fixed to the building main 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 cross member 13 by the upper fixing member 41, and is fixed to the lower base 4 by the lower fixing member 42.

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

[0034] Similar to the first shaft member 23, the second shaft member 24 is fixed to the building main body 2 by an upper fixing member 41 and a lower fixing member 42. Specifically, the second shaft member 24 is fixed to the upper cross member 13 by the upper fixing member 41, and is fixed 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 pipes. The upper fixing member 41 and the lower fixing member 42 are made of angle brackets. One end of the upper fixing member 41 attached to the first shaft member 23 is fixed to the upper end of the first shaft member 23 by welding, and the other end is fixed to the upper cross member 13 with a bolt and a nut. One end of the lower fixing member 42 attached to the first shaft member 23 is fixed to the lower end of the first shaft member 23 by welding, and the other end is fixed to the lower base 4 with a bolt and a nut. 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 FIGS. 2 to 4, the first connecting member 25 extends in the lateral direction DX. The first connecting member 25 is disposed between the first shaft member 23 and the second shaft member 24. The first connecting member 25 is disposed so as to be parallel to the upper cross member 13. The first connecting member 25 connects the first shaft member 23 and the second shaft member 24 together.

[0037] The first connecting member 25 has a first outer surface portion 51 facing the outside of the room, a first inner surface portion 52 facing the inside of the room, and a first intermediate surface portion 53. The first intermediate surface portion 53 is a 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 to 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 a channel steel or a 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 on which a worker temporarily places the exterior panel 16 immediately before attaching the exterior panel 16 when attaching 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 FIGS. 2 to 4 , the second connecting member 26 extends in the lateral direction DX. The second connecting member 26 is disposed between the first shaft member 23 and the second shaft member 24. The second connecting member 26 is disposed below the first connecting member 25. The second connecting member 26 is disposed so as to be 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 has a first outer surface portion 51 facing the outside of the room, a first inner surface portion 52 facing the inside of the room, and a first intermediate surface portion 53. The first intermediate surface portion 53 is a 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 to 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 a channel steel or a square steel pipe.

[0041] [First vertical member and second vertical member] The first vertical member 27 is disposed between the first connecting member 25 and the second connecting member 26. The first vertical member 27 has a second outer surface portion 55 facing the outside of the room, a second inner surface portion 56 facing the inside of the room, 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 a channel steel or a square steel pipe.

[0042] The second vertical member 28 is disposed between the first connecting member 25 and the second connecting member 26. The second vertical member 28 is disposed at a distance from the first vertical member 27 in the horizontal direction DX that intersects with the vertical direction DZ. The second vertical member 28 includes a second outer surface portion 55 facing the outside of the room, a second inner surface portion 56 facing the inside of the room, 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 formed of a channel steel or a 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 configured. 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 configured as a frame 21 in which these members are integrated.

[0044] The frame 21 includes an exterior panel mounting portion 22A and a cylindrical body mounting portion 22B. The exterior panel mounting portion 22A is a portion to which the exterior panel 16 is attached. The cylindrical body mounting portion 22B is a portion 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 body mounting portion 22B is provided on the inner surface side of the frame 21. The cylindrical body 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 FIGS. 5 and 6, the cylindrical body 30 connects the inner space of the outer wall 15 with the outer space. 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, a first vertical member 27 and a second vertical member 28 are provided in the mounting structure 20 for the ventilation fan 19. In this case, the cylindrical body 30 is provided in an 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 , an outer open end 30 A of the cylindrical body 30 is disposed near the outer surface of the outer wall 15 , and an inner open end 30 B of the cylindrical body 30 is disposed 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 surface portion 33, and a second side surface portion 34. The first side surface portion 33 connects the upper surface portion 31 and the lower surface portion 32. The second side surface portion 34 is disposed opposite the first side surface 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 attachment 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 attachment member 60.

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

[0052] The mounting member 60 is formed of an angle metal fitting. The mounting member 60 has a first mounting portion 61 and a second mounting portion 62 that intersects with the first mounting portion 61. The mounting members 60 are fixed to the upper surface portion 31, the lower surface portion 32, the first side surface portion 33, and the second side surface 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] 5, the second mounting portion 62 of the mounting member 60 fixed to the upper surface 31 of the cylindrical body 30 is fixed to the first connecting member 25 by a bolt inserted through the first fixing hole 54 of the first inner surface 52 of the first connecting member 25 and a nut. The second mounting portion 62 of the mounting member 60 fixed to the lower surface 32 of the cylindrical body 30 is fixed to the second connecting member 26 by a bolt inserted through the first fixing hole 54 of the first inner surface 52 of the second connecting member 26 and a nut.

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

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

[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 the elastic material include rubber, silicone, and porous resin material.

[0057] Heat insulating material 66 is arranged around the cylindrical body 30. Specifically, the heat 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 surface portion 33, and the outside of the second side surface portion 34.

[0058] [Exterior panel] The arrangement of the exterior panels 16 in the mounting structure 20 for the ventilation fan 19 will be described with reference to Figure 2. One of the exterior panels 16 is fixed to the first outer surface portion 51 of the first connecting member 25. The other of the exterior panels 16 is fixed to the first outer surface portion 51 of the second connecting member 26. The other of the exterior panels 16 is fixed to the second outer surface portion 55 of the first vertical member 27. The other of the exterior panels 16 is fixed to the second outer surface portion 55 of the second vertical member 28.

[0059] 2 and 4, the exterior panel 16 has an exterior panel main body 16A and an engaging fitting 16B provided on the back surface of the exterior panel main body 16A. The engaging fitting 16B has an engaging claw 16C. The engaging claw 16C of the engaging fitting 16B is hooked onto the frame 21 or the panel engaging portion 68, thereby attaching the exterior panel 16 to the mounting structure 20 for the ventilation fan 19.

[0060] Specifically, the exterior panel 16 arranged near the upper cross 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 cross member 13. The other engaging fitting 16B engages with the first connecting member 25. One engaging fitting 16B of the exterior panel 16 arranged on the lower base 4 engages with the 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 also attached to the mounting structure 20 for the ventilation fan 19 by engaging fittings 16B in a similar manner.

[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 to fit into is provided on-site in the reinforcing plate. 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 provided on the exterior wall 15 through work on-site. Because this type of work requires manpower, if there is a shortage of manpower, it may take a long time to install the mounting structure 20 for the ventilation fan 19.

[0062] The mounting structure 20 for the ventilation fan 19 of this embodiment includes 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 mounting structure 20 for the ventilation fan 19 is provided on the skeleton 10 of the building 1 when the skeleton 10 is constructed. Therefore, the mounting structure 20 for the ventilation fan 19 can be provided during the series of construction steps for the skeleton 10, 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 configured. 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 together at a factory. Therefore, at the construction site, the mounting structure 20 for the ventilation fan 19 can be configured by attaching the frame 21, in which the first shaft member 23, the second shaft member 24, the first connecting member 25, and the second connecting member 26 are integrated, to the main body 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 be described. (1) The mounting structure 20 for the ventilation fan 19 includes 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] With this configuration, ventilation fan 19 is supported by frame 21, which is made up of first shaft member 23, second shaft member 24, first connecting member 25, and second connecting member 26. The load of ventilation fan 19 is applied to body 10 via frame 21, which reduces the load applied to exterior panel 16 of exterior wall 15 or interior materials. This improves the strength of mounting structure 20 for ventilation fan 19.

[0066] Because the first shaft member 23 and the second shaft member 24 are attached to the skeleton 10, the first shaft member 23 and the second shaft member 24 can be provided to the skeleton 10 when the skeleton 10 is being constructed. Furthermore, because 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 when the skeleton 10 is being constructed. In this way, because these members can be assembled to the skeleton 10 when the skeleton 10 is being constructed, the ease of construction of the mounting structure for the ventilation fan 19 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 configured. With this configuration, the first shaft member 23, the second shaft member 24, the first connecting member 25, and the second connecting member 26 are integrally configured, so that the frame 21 including these members can be easily fixed to the skeleton 10. This improves the ease of construction 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 configured as a single unit. With this configuration, 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 configured as a single unit, so that the frame 21 including these members can be easily fixed to the skeleton 10. This improves the ease of construction 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 includes 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 an 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 mounting members 60. With this configuration, the first vertical member 27 and the second vertical member 28 can improve the strength of the frame 21 that supports the ventilation fan 19. Furthermore, the cylindrical body 30 can be firmly fixed.

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

[0071] According to 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 for 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 members 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 members 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 members 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 members 60. With this configuration, the cylindrical body 30 can be fixed to the frame 21 from four directions by the mounting members 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 each fixed to the upper cross member 13 by the upper fixing member 41, and are also fixed 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 vibration generated when the ventilation fan 19 operates can be absorbed by the vibration-damping material 38, thereby suppressing the vibration transmitted to the frame 21. As a result, the vibration of the exterior wall 15 can be suppressed.

[0075] (8) In the mounting structure 20 for 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. Therefore, the cylindrical body 30 can be easily attached 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. Therefore, it is easy to attach the cylindrical body 30 to the first vertical member 27 and the second vertical member 28.

[0077] (10) The building 1 includes a building main body 2. The building main body 2 is provided with any one of the above-described mounting structures 20 for the ventilation fan 19. In the mounting structure 20 for the ventilation fan 19, the ventilation fan 19 is mounted to the cylindrical body 30. This configuration improves the ease of construction of the building 1 having the mounting structure 20 for the ventilation fan 19.

[0078] <Modification> The above-described embodiment is an example of the possible forms of the mounting structure 20 for the ventilation fan 19 and the building 1, and is not intended to limit the forms. The mounting structure 20 for the ventilation fan 19 and the building 1 may take forms different from those illustrated in the above-described embodiment. Examples of such forms include forms in which part of the configuration of the embodiment is replaced, modified, or omitted, or forms in which a new configuration is added to the embodiment. Modified examples 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 members 60. In this embodiment, the mounting members 60 are formed of angle fittings. The mounting members 60 for mounting the cylindrical body 30 may be bolts and nuts, or screws.

[0080] In the mounting structure 20 for the ventilation fan 19, the first vertical member 27 and the second vertical member 28 may be omitted. In this case, the first side surface portion 33 and the second side surface portion 34 of the cylindrical body 30 do not have 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 metal fittings.

[0082] In the mounting structure 20 for the ventilation fan 19, the distance between the first vertical member 27 and the second vertical member 28 may be set to a distance that is just large enough to fit the cylindrical body 30 therein.

[0083] In the mounting structure 20 for the ventilation fan 19, the size of the opening 29 may be large enough to allow the cylindrical body 30 to pass through. The size of the opening 29 may be configured so that multiple cylindrical bodies 30 of different sizes can be inserted.

[0084] This specification discloses the following techniques: [Appendix 1] Appendix 1 is a mounting structure for a ventilation fan. The mounting structure for a ventilation fan is a mounting structure for a ventilation fan in a building. The mounting structure for a ventilation fan includes a first shaft member, a second shaft member, a first connecting member, a second connecting member, and a cylindrical body. The first shaft member is arranged in the vertical direction between a lower base of the building and an upper cross member arranged above the lower base in the building, and is attached to the lower base and the upper cross member. The second shaft member is arranged between the lower base and the upper cross member in the vertical direction, is attached to the lower base and the upper cross member, and is arranged at a distance from the first shaft member. The first connecting member is disposed 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 disposed between the first shaft member and the second shaft member and below the first connecting 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, connects the inner space of the outer wall with the outer space, and has a ventilation fan attached thereto. The cylindrical body is fixed to the first connecting member and the second connecting member by an attachment member.

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

[0086] [Appendix 3] The mounting structure for a ventilation fan of Supplementary Note 1 further includes 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 a horizontal direction intersecting the up-down direction. The cylindrical body is provided between the first vertical member and the second vertical member and in an opening 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] [Appendix 4] The ventilation fan mounting structure of Appendix 3 further comprises a plurality of 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 has a first outer surface portion facing the outside of the room, a first inner surface portion facing the inside of the room, and a first intermediate surface portion connecting the first outer surface portion and the first inner surface portion. One of the exterior panels is fixed to the first outer surface portion of the first connecting member. The other of the exterior panels is fixed to the first outer surface portion of the second connecting member. The upper surface portion of the cylindrical body is fixed to the first inner surface portion 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.

[0088] [Appendix 5] In the ventilation fan mounting structure of Supplementary Note 4, the first vertical member and the second vertical member each include a second outer surface portion facing the outside of the room, a second inner surface portion facing the inside of the room, and a second intermediate surface portion connecting the second outer surface portion and the second inner surface portion. The first side surface portion of the cylinder is fixed to the second inner surface portion of the first vertical member by the mounting member. The second side surface portion of the cylinder is fixed to the second inner surface portion of the second vertical member by the mounting member.

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

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

[0091] [Appendix 8] In the ventilation fan mounting structure of Supplementary Note 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 mounting the mounting member.

[0092] [Appendix 9] In the ventilation fan mounting structure of Supplementary Note 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 mounting the mounting member.

[0093] [Appendix 10] Supplementary note 10 is a building having a ventilation fan. The building includes a building main body. The building main body is provided with the ventilation fan mounting structure according to any one of claims 1 to 9. The ventilation fan is mounted to 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 shaft member, 24...second shaft 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 ventilation fan mounting structure in a building, a first shaft member disposed between a lower base of the building and an upper cross member disposed above the lower base in the building in the vertical direction and attached to the lower base and the upper cross member; a second shaft member disposed between the lower base and the upper cross member in the vertical direction, attached to the lower base and the upper cross member, and spaced apart from the first shaft member; a first connecting member disposed between the first shaft member and the second shaft member and connecting the first shaft member and the second shaft member; a second connecting member that is disposed between the first shaft member and the second shaft member and below the first connecting member, and that connects the first shaft member and the second shaft member; 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 an inner space of the outer wall with an outer space, 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 ventilation fan mounting structure according to claim 1.

3. The device further includes 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 a horizontal direction intersecting the up-down direction, the cylindrical body is provided in an 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 ventilation fan mounting structure according to claim 1.

4. a plurality of 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 to face 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 includes a first outer surface portion facing the outside of the room, a first inner surface portion facing the inside of the room, and a first intermediate surface portion connecting the first outer surface portion and the first inner surface portion, one of the exterior panels is fixed to the first outer surface portion of the first connecting member; the other exterior panel is fixed to the first outer surface portion of the second connecting member, the upper surface portion of the cylindrical body is fixed to the first inner surface portion 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 ventilation fan mounting structure according to claim 3.

5. Each of the first vertical member and the second vertical member includes a second outer surface portion facing the outside of the room, a second inner surface portion facing the inside of the room, and a second intermediate surface portion connecting the second outer surface portion and the second inner surface portion, the first side surface portion of the cylindrical body is fixed to the second inner surface portion of the first vertical member by the mounting member; the second side surface portion of the cylindrical body is fixed to the second inner surface portion of the second vertical member by the mounting member; The ventilation fan mounting structure according to claim 4.

6. Each of the first shaft member and the second shaft member is fixed to the upper cross member by an upper fixing member and is fixed to the lower base by a lower fixing member. The ventilation fan mounting structure according to claim 1.

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

8. 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. The ventilation fan mounting structure according to claim 4.

9. 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. The ventilation fan mounting structure according to claim 5.

10. A building having a ventilation fan, Equipped with the building itself, The building body is provided with the 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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