Exterior wall panel mounting hardware and exterior wall panel mounting structure

Abstract

To provide an exterior wall panel mounting hardware and an exterior wall panel mounting structure that can improve ease of mounting an exterior wall panel to a frame. [Solution] An exterior wall panel mounting hardware 15 has a panel-side mounting member 50 and a frame-side mounting member 60. The panel-side mounting member 50 is arranged closer to the frame 13 than the exterior wall panel 14 in the second direction Y, and is attached to the exterior wall panel 14. The frame-side mounting member 60 has a first portion 61 and a second portion 62. The first portion 61 is arranged to overlap the panel-side mounting member 50. The second portion 62 extends from the first portion 61 in a direction away from the exterior wall panel 14, and is attached to an upper horizontal frame portion 32a of the frame 13. The panel-side mounting member 50 and the frame-side mounting member 60 are connected within the frame 13 when viewed from the second direction Y.

Description

[Technical Field]

[0001] The present invention relates to an exterior wall panel mounting hardware and an exterior wall panel mounting structure. [Background technology]

[0002] Patent Document 1 discloses an exterior wall panel mounting structure in which an exterior wall panel is mounted to a frame using fixing metal fittings. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2005-207030 Summary of the Invention [Problem to be solved by the invention]

[0004] There is a demand for improved ease of attachment of exterior wall panels to frames. [Means for solving the problem]

[0005] (1) An exterior wall panel mounting hardware for solving the above-mentioned problems is an exterior wall panel mounting hardware for mounting an exterior wall panel arranged on one side of the frame in a second direction perpendicular to the first direction and the up-down direction to a frame having two vertical frame portions extending in the up-down direction, an upper horizontal frame portion attached to the underside of a cross member extending in a first direction perpendicular to the up-down direction and extending in the first direction, and a lower horizontal frame portion located below the upper horizontal frame portion and extending in the first direction, the exterior wall panel mounting hardware comprising: a panel-side mounting member arranged on the frame side of the exterior wall panel in the second direction and attached to the exterior wall panel; and a frame-side mounting member having a first portion arranged to overlap with the panel-side mounting member and a second portion extending from the first portion in a direction away from the exterior wall panel and attached to the upper horizontal frame portion, the panel-side mounting member and the frame-side mounting member being connected within the frame when viewed from the second direction.

[0006] According to this configuration, the exterior wall panel mounting hardware is divided into two mounting members: a panel-side mounting member and a frame-side mounting member. This allows the mounting members to be attached separately to the exterior wall panel and the frame. This makes it easier to attach the mounting hardware to each of the exterior wall panel and the frame, compared to attaching a single mounting hardware to one of the exterior wall panel and the frame and then to the other. Furthermore, the panel-side mounting member and the frame-side mounting member are connected within the frame when viewed from the second direction. Therefore, even if a cross member is provided above the frame, the cross member is less likely to get in the way of connecting the panel-side mounting member and the frame-side mounting member. This improves the ease of attaching the exterior wall panel to the frame.

[0007] Furthermore, since the frame-side mounting member is attached to the upper horizontal frame portion, the degree of freedom in the mounting position of the frame-side mounting member relative to the frame in the first direction is increased compared to when it is attached to the vertical frame portion.

[0008] (2) In the exterior wall panel mounting hardware of (1) above, the panel side mounting member has a main body portion arranged to overlap the inner surface of the exterior wall panel, which is the surface on the frame side, and a protrusion portion protruding from the main body portion in a direction away from the exterior wall panel, and the first portion of the frame side mounting member is provided with a protrusion insertion hole through which the protrusion portion is inserted, and a nut is engaged with the protrusion portion inserted into the protrusion insertion hole.

[0009] One possible method for connecting the panel-side mounting member and the frame-side mounting member is to lock a nut onto a bolt that passes through the first portion of the panel-side mounting member and the frame-side mounting member. However, in this case, there is a risk that the bolt head will interfere with the exterior wall panel. If the bolt head is embedded in the exterior wall panel with the bolt shank protruding from the inner surface of the exterior wall panel, the bolt head will not interfere with the exterior wall panel, but in this case, the exterior wall panel will need to be modified.

[0010] In contrast, when the panel-side mounting member and the frame-side mounting member are connected by engaging a nut with a protrusion provided on the panel-side mounting member as in the above configuration, the above-mentioned problem does not occur.

[0011] (3) In the exterior wall panel mounting hardware described above in (2), the protrusion insertion hole is a long hole that is long in the vertical direction. According to this configuration, by adjusting the position of the protrusion within the elongated hole, the position of the panel-side mounting member relative to the frame-side mounting member can be adjusted in the vertical direction, thereby adjusting the height of the exterior wall panel.

[0012] (4) In the exterior wall panel mounting hardware of (2) or (3) above, the panel side mounting member has two regulating portions that protrude from the main body portion in a direction away from the exterior wall panel and are located on both sides of the first portion in the first direction. According to this configuration, it is possible to suppress misalignment of the frame-side mounting member with respect to the panel-side mounting member in the first direction.

[0013] (5) An exterior wall panel mounting structure that solves the above problem is an exterior wall panel mounting structure in which an exterior wall panel arranged on one side of the frame in a second direction perpendicular to the first direction and the vertical direction is mounted to a frame having two vertical frame portions extending in the vertical direction, an upper horizontal frame portion attached to the underside of a horizontal member extending in the first direction perpendicular to the vertical direction and extending in the first direction, and a lower horizontal frame portion located below the upper horizontal frame portion and extending in the first direction, using an exterior wall panel mounting hardware, and the exterior wall panel mounting hardware is any one of the exterior wall panel mounting hardware described above in (1) to (4).

[0014] According to this configuration, the exterior wall panel mounting hardware is divided into two mounting members: a panel-side mounting member and a frame-side mounting member. This allows the mounting members to be attached to the exterior wall panel and the frame separately. This makes it easier to attach the mounting hardware to each of the exterior wall panel and the frame, compared to attaching a single mounting hardware to one of the exterior wall panel and the frame and then to the other. Furthermore, the panel-side mounting member and the frame-side mounting member are connected within the frame when viewed from the second direction. Therefore, even if a cross member is provided above the frame, the cross member is less likely to get in the way of connecting the panel-side mounting member and the frame-side mounting member. This improves the ease of attaching the exterior wall panel to the frame.

[0015] Furthermore, since the frame-side mounting member is attached to the upper horizontal frame portion, the degree of freedom in the mounting position of the frame-side mounting member relative to the frame in the first direction is greater than when it is attached to the vertical frame portion.

[0016] (6) In the exterior wall panel mounting structure of (5) above, the exterior wall panel has a frame interior located within the frame when viewed from the second direction, and an upper frame exterior located above the frame and aligned with the cross member in the second direction, and the panel side mounting member is arranged so as to span from the upper frame exterior to the frame interior and is attached to the upper frame exterior.

[0017] With this configuration, the mounting position of the panel-side mounting member relative to the exterior wall panel can be positioned closer to the upper end of the exterior wall panel than when the panel-side mounting member is attached inside the frame, thereby allowing the exterior wall panel to be stably attached to the frame.

[0018] As mentioned above, the exterior wall panel mounting hardware is divided into a panel-side mounting member and a frame-side mounting member, so the panel-side mounting member can be attached to the exterior wall panel in advance. Therefore, even if the mounting location of the panel-side mounting member to the exterior wall panel is located between the exterior wall panel and the cross member, the installation work of the panel-side mounting member to the exterior wall panel is not easily hindered.

[0019] (7) In the exterior wall panel mounting structure of (5) or (6) above, a panel-side connecting member is provided that connects the exterior wall panel and the panel-side mounting member, the panel-side connecting member having a first bolt, a first nut, and a plate-shaped first plate portion fixed to the first bolt, the panel-side mounting member having a first bolt insertion hole through which the first bolt is inserted, the interior of the exterior wall panel having a panel opening that opens on the inner surface that is the surface of the exterior wall panel facing the frame, and a panel C-shaped steel into which a part of the first bolt and the first plate portion are inserted is provided, the first nut protruding from the inner surface of the exterior wall panel and engaged with the first bolt inserted in the first bolt insertion hole, the dimension of the panel opening in the vertical direction being smaller than the longitudinal dimension of the first plate portion and larger than the lateral dimension of the first plate portion.

[0020] According to this configuration, when inserting the first plate portion into the C-shaped steel for a panel, the first bolt is rotated so that the short side of the first plate portion is parallel to the vertical direction. As a result, the vertical dimension of the first plate portion becomes smaller than the vertical dimension of the panel opening, so that the first plate portion can be inserted into the C-shaped steel for a panel through the panel opening.

[0021] After the first plate portion is inserted into the C-shaped steel for the panel, when the first nut is locked onto the first bolt, the first bolt rotates, causing the longitudinal direction of the first plate portion to become parallel to the vertical direction. As a result, the vertical dimension of the first plate portion becomes larger than the vertical dimension of the panel opening, preventing the first plate portion from falling out of the C-shaped steel for the panel.

[0022] When the first nut is locked onto the first bolt, the two lips of the panel C-shaped steel are sandwiched between the first plate portion and the panel-side mounting member, thereby attaching the panel-side mounting member to the exterior wall panel.

[0023] (8) In any one of the above (5) to (7) exterior wall panel mounting structures, a frame-side connecting member is provided that connects the upper horizontal frame portion of the frame and the frame-side mounting member, the frame-side connecting member having a plate-shaped second plate portion and a second bolt, the upper horizontal frame portion has a frame opening that opens downward and is made of a frame C-shaped steel into which the second plate portion is inserted, the second portion of the frame-side mounting member is located below the upper horizontal frame portion, the second portion of the frame-side mounting member has a second bolt insertion hole through which the second bolt is inserted, the second bolt inserted into the second bolt insertion hole is engaged with the second plate portion, and the dimension of the frame opening in the second direction is smaller than the longitudinal dimension of the second plate portion and larger than the lateral dimension of the second plate portion.

[0024] According to this configuration, when inserting the second plate portion into the frame C-shaped steel, the second plate portion is rotated so that the short side direction of the second plate portion is parallel to the second direction. As a result, the dimension of the second plate portion in the second direction becomes smaller than the dimension of the frame opening in the second direction, so that the second plate portion can be inserted into the frame C-shaped steel through the frame opening.

[0025] After the second plate portion is inserted into the C-shaped steel frame, when the second bolt is locked to the second plate portion, the second plate portion rotates, and the longitudinal direction of the second plate portion becomes parallel to the second direction. As a result, the dimension of the second plate portion in the second direction becomes larger than the dimension of the frame opening in the second direction, preventing the second plate portion from falling out of the C-shaped steel frame.

[0026] When the second bolt is locked into the second plate portion, the two lips of the frame C-shaped steel are sandwiched between the second plate portion and the second part of the frame-side mounting member, thereby attaching the frame-side mounting member to the upper horizontal frame portion of the frame.

[0027] (9) In the exterior wall panel mounting structure of (8) above, the second bolt insertion hole is an elongated hole that is long in the second direction. With this configuration, the position of the frame-side mounting member relative to the frame in the second direction can be adjusted by adjusting the position of the second bolt in the elongated hole, and therefore the position of the exterior wall panel in the second direction can be adjusted. [Effects of the Invention]

[0028] The exterior wall panel mounting hardware and exterior wall panel mounting structure disclosed herein can improve the ease of mounting exterior wall panels to frames. [Brief explanation of the drawings]

[0029] [Figure 1] FIG. 1 is a cross-sectional view of a wall. [Figure 2]FIG. 2 is a cross-sectional view showing an exterior wall panel mounting structure. [Figure 3] FIG. 2 is a perspective view showing a panel-side mounting member. [Figure 4] FIG. 2 is a view showing a first plate portion. [Figure 5] FIG. 4 is a perspective view showing a frame-side mounting member. [Figure 6] FIG. 4 is a view showing a second plate portion. [Figure 7] FIG. 10 is a view showing a third plate portion. [Figure 8] FIG. [Figure 9] 10A and 10B are diagrams showing a method of attaching a panel-side mounting member to an exterior wall panel. [Figure 10] 10A and 10B are diagrams illustrating a method of attaching a frame-side mounting member to a frame. DETAILED DESCRIPTION OF THE INVENTION

[0030] The exterior wall panel mounting hardware 15 and the exterior wall panel mounting structure of this embodiment will be described with reference to FIGS. As shown in FIG. 1, the wall 10 includes beams 12 as cross members, a frame 13, and exterior wall panels 14. Hereinafter, the direction in which the beams 12 extend is referred to as a first direction X. The first direction X is perpendicular to the vertical direction Z. The direction perpendicular to the first direction X and the vertical direction Z is referred to as a second direction Y. The wall 10 of this embodiment is a hanging wall. The wall 10 of this embodiment separates the indoors from the outdoors.

[0031] The beam 12 of this embodiment is composed of an H-shaped steel 21 and a T-shaped steel 22. The T-shaped steel 22 is arranged below the H-shaped steel 21. The H-shaped steel 21 has a first web 21a, an upper flange 21b, and a lower flange 21c. The upper flange 21b is provided at the upper end of the first web 21a. The lower flange 21c is provided at the lower end of the first web 21a. The T-shaped steel 22 has a second web 22a and a flange 22b. The flange 22b is provided at the lower end of the second web 22a. In a plan view, the first web 21a of the H-shaped steel 21 and the second web 22a of the T-shaped steel 22 overlap. The upper end of the second web 22a of the T-shaped steel 22 is welded to the lower flange 21c of the H-shaped steel 21.

[0032] The frame 13 is disposed below the beam 12. In this embodiment, two frames 13 are disposed side by side in the second direction Y. The frame 13 located on the outdoor side of the first web 21a and the second web 22a is referred to as the outdoor frame 13a. The frame 13 located on the indoor side of the first web 21a and the second web 22a is referred to as the indoor frame 13b.

[0033] The frame 13 is a rectangular frame. The frame 13 has two vertical frame portions 31 and two horizontal frame portions 32. Note that only one of the two vertical frame portions 31 is shown in FIG. 1.

[0034] The two vertical frame portions 31 are spaced apart in the first direction X. Each vertical frame portion 31 extends in the up-down direction Z. The two horizontal frame portions 32 are spaced apart in the up-down direction Z. Each horizontal frame portion 32 extends in the first direction X. One of the two horizontal frame portions 32 is referred to as the upper horizontal frame portion 32a, and the horizontal frame portion 32 located below the upper horizontal frame portion 32a is referred to as the lower horizontal frame portion 32b. The upper horizontal frame portion 32a connects the upper ends of the two vertical frame portions 31. The lower horizontal frame portion 32b connects the lower ends of the two vertical frame portions 31.

[0035] The upper horizontal frame portion 32a of the frame 13 is attached to the underside 12a of the beam 12. In this embodiment, the upper horizontal frame portion 32a is attached to the beam 12 by engaging a mounting nut N with a mounting bolt B that passes through the upper horizontal frame portion 32a and the flange 22b of the T-shaped steel 22. Although not shown, a plurality of frames 13 are provided in the first direction X below the beam 12. The vertical frame portions 31 of adjacent frames 13 are connected to each other.

[0036] As shown in Figures 1 and 2, each vertical frame section 31 and each horizontal frame section 32 is made of a C-shaped steel. In the following description, the C-shaped steel that makes up the upper horizontal frame section 32a is referred to as the frame C-shaped steel 33. The frame C-shaped steel 33 has a frame opening 33b defined by two lips 33a. The frame opening 33b opens downward.

[0037] The exterior wall panel 14 is provided on one side of the beam 12 and the frame 13 in the second direction Y. In this embodiment, the exterior wall panel 14 is provided on the outdoor side of the beam 12 and the frame 13 in the second direction Y. Although not shown, the exterior wall panel 14 is also provided on the indoor side of the frame 13 in the second direction Y. A plurality of exterior wall panels 14 provided on the outdoor side of the beam 12 and the frame 13 and a plurality of exterior wall panels 14 provided on the indoor side of the frame 13 are each provided in the first direction X.

[0038] Two exterior wall panels 14 are arranged side by side in the vertical direction Z on the outdoor side of the beams 12 and the frame 13. One of the two exterior wall panels 14 is referred to as an upper exterior wall panel 14a, and the exterior wall panel 14 located below the upper exterior wall panel 14a is referred to as a lower exterior wall panel 14b.

[0039] The upper exterior wall panel 14a is aligned with the H-shaped steel 21 of the beam 12 in the second direction Y. The lower exterior wall panel 14b is aligned with the T-shaped steel 22 of the beam 12 and the frame 13 in the second direction Y. The lower exterior wall panel 14b has a frame interior 41 located within the frame 13 when viewed from the second direction Y, and an upper frame exterior 42 located above the frame 13. The upper frame exterior 42 is aligned with the T-shaped steel 22 of the beam 12 in the second direction Y.

[0040] The lower exterior wall panel 14b is attached to the outdoor frame 13a by an exterior wall panel mounting hardware 15. Two exterior wall panel mounting hardware 15 are arranged side by side with a gap between them in the vertical direction Z. One of the two exterior wall panel mounting hardware 15 is referred to as the upper mounting hardware 15a, and the exterior wall panel mounting hardware 15 located below the upper mounting hardware 15a is referred to as the lower mounting hardware 15b. The upper part of the lower exterior wall panel 14b is attached to the upper horizontal frame portion 32a of the outdoor frame 13a by the upper mounting hardware 15a. The lower exterior wall panel 14b is attached to the lower horizontal frame portion 32b of the outdoor frame 13a by the lower mounting hardware 15b.

[0041] As shown in Fig. 2, a groove 14d is provided on the inner surface 14c of the lower exterior wall panel 14b. The inner surface 14c of the lower exterior wall panel 14b is the surface of the lower exterior wall panel 14b that faces the frame 13. In this embodiment, the inner surface 14c of the lower exterior wall panel 14b is the surface of the lower exterior wall panel 14b that faces the indoor side. The groove 14d extends in the first direction X. Although not shown, the groove 14d opens at both end surfaces of the lower exterior wall panel 14b in the first direction X. The groove 14d is provided on the outer side 42 of the upper frame.

[0042] A panel C-shaped steel 43 is provided in the groove 14d. Therefore, the panel C-shaped steel 43 is provided in the lower exterior wall panel 14b. The panel C-shaped steel 43 has a panel opening 43b defined by two lips 43a. The panel opening 43b opens on the inner surface 14c of the lower exterior wall panel 14b.

[0043] <Upper mounting hardware> The upper mounting hardware 15a includes a panel-side mounting member 50 and a frame-side mounting member 60. The panel-side mounting member 50 is provided closer to the frame 13 than the lower exterior wall panel 14b in the second direction Y. In this embodiment, the panel-side mounting member 50 is provided closer to the interior of the frame than the lower exterior wall panel 14b. The panel-side mounting member 50 is attached to the lower exterior wall panel 14b by a panel-side connecting member 17. The frame-side mounting member 60 is provided within the frame 13 as viewed from the second direction Y. The frame-side mounting member 60 is attached to the upper horizontal frame portion 32a of the outdoor frame 13a by a frame-side connecting member 18. The panel-side mounting member 50 and the frame-side mounting member 60 are connected to each other within the frame 13 as viewed from the second direction Y. As a result, the lower exterior wall panel 14b is attached to the upper horizontal frame portion 32a of the outdoor frame 13a by the upper mounting hardware 15a.

[0044] <Panel side mounting material> As shown in FIG. 3, the panel-side mounting member 50 has a rectangular plate-shaped main body 51. The main body 51 has a first surface 51a and a second surface 51b. The first surface 51a and the second surface 51b are each perpendicular to the thickness direction of the main body 51. The second surface 51b is the surface opposite to the first surface 51a. A first bolt insertion hole 51c is provided in the upper part of the main body 51. The first bolt insertion hole 51c penetrates the main body 51 in the thickness direction. The first bolt insertion hole 51c is a circular hole.

[0045] As shown in Fig. 2, the main body 51 is disposed on the inner surface 14c of the lower exterior wall panel 14b. A first surface 51a of the main body 51 faces the inner surface 14c of the lower exterior wall panel 14b. The main body 51 of this embodiment is disposed so as to span from the upper frame exterior 42 to the frame interior 41 of the lower exterior wall panel 14b. Therefore, the main body 51 has a portion positioned above the upper horizontal frame portion 32a of the frame 13 when viewed from the second direction Y, and a portion positioned below the upper horizontal frame portion 32a.

[0046] 2 and 3, the panel-side mounting member 50 of this embodiment has a protrusion 52. The protrusion 52 protrudes from the second surface 51b of the main body 51 in a direction away from the lower exterior wall panel 14b. The protrusion 52 is provided on the lower part of the main body 51. The protrusion 52 is located inside the outdoor frame 13a. A male thread is formed on the outer peripheral surface of the protrusion 52.

[0047] The panel-side mounting member 50 of this embodiment has two restricting portions 53 that protrude from the main body portion 51 in a direction away from the lower exterior wall panel 14b. The two restricting portions 53 are located at the lower part of the main body portion 51. One of the restricting portions 53 is located at a first end of the main body portion 51 in the first direction X. The other restricting portion 53 is located at a second end of the main body portion 51 in the first direction X.

[0048] As shown in FIG. 2, the panel-side connecting member 17 connects the lower exterior wall panel 14b and the panel-side mounting member 50. The panel-side connecting member 17 has a first bolt 71, a first nut 72, and a first plate portion 73. The first bolt 71 has a first head portion 71a and a first shank portion 71b extending from the first head portion 71a. The first bolt 71 of this embodiment is a low-head bolt with a low first head portion 71a. The first plate portion 73 is fixed to the end of the first shank portion 71b on the first head portion 71a side. Therefore, the first plate portion 73 can rotate integrally with the first bolt 71.

[0049] 2 and 4, the longitudinal dimension L73 of the first plate portion 73 is larger than the dimension A43 of the panel opening 43b in the up-down direction Z. The lateral dimension S73 of the first plate portion 73 is smaller than the dimension A43 of the panel opening 43b in the up-down direction Z. In other words, the dimension A43 of the panel opening 43b in the up-down direction Z is larger than the lateral dimension S73 of the first plate portion 73 and smaller than the longitudinal dimension L73 of the first plate portion 73.

[0050] The first head 71a and first plate 73 of the first bolt 71 are inserted into the panel C-shaped steel 43. The longitudinal direction of the first plate 73 extends parallel to the vertical direction Z. The first shaft 71b of the first bolt 71 protrudes from the inner surface 14c of the lower exterior wall panel 14b through the panel opening 43b. The portion of the first shaft 71b protruding from the inner surface 14c of the lower exterior wall panel 14b is inserted into the first bolt insertion hole 51c of the main body 51 of the panel-side mounting member 50. The first nut 72 is engaged with the first shaft 71b. The two lips 43a of the panel C-shaped steel 43 are sandwiched between the first plate 73 and the main body 51 of the panel-side mounting member 50. As a result, the panel-side mounting member 50 is attached to the upper frame exterior 42 of the lower exterior wall panel 14b.

[0051] <Frame side mounting member> As shown in Fig. 5, the frame-side mounting member 60 has a first portion 61 and a second portion 62. The first portion 61 and the second portion 62 are each flat. The second portion 62 intersects with the first portion 61. The frame-side mounting member 60 of this embodiment is configured as an L-shaped angle. In this embodiment, the second portion 62 is perpendicular to the first portion 61.

[0052] As shown in FIG. 2, the first portion 61 extends in the vertical direction Z. The first portion 61 is disposed so as to overlap the second surface 51b of the main body 51 of the panel-side mounting member 50. A protrusion insertion hole 61a is provided in the lower portion of the first portion 61. The protrusion insertion hole 61a penetrates the first portion 61 in the second direction Y. In this embodiment, the protrusion insertion hole 61a is an elongated hole that is long in the vertical direction Z.

[0053] The second portion 62 extends from the first portion 61 in a direction away from the lower exterior wall panel 14b. In this embodiment, the second portion 62 extends in the second direction Y. The second portion 62 is located below the upper horizontal frame portion 32a. A second bolt insertion hole 62a is provided in the second portion 62. The second bolt insertion hole 62a penetrates the second portion 62 in the up-down direction Z. In this embodiment, the second bolt insertion hole 62a is an elongated hole that is long in the second direction Y. In this embodiment, the second bolt insertion hole 62a is provided at a different position in the first direction X from the protrusion insertion hole 61a.

[0054] The frame-side connecting member 18 connects the upper horizontal frame portion 32a of the outdoor frame 13a to the frame-side mounting member 60. The frame-side connecting member 18 has a second bolt 81, a second plate portion 82, a third plate portion 83, and a connecting bolt 84. The second bolt 81 has a second head portion 81a and a second shaft portion 81b extending from the second head portion 81a. The second plate portion 82 is flat. The third plate portion 83 is formed by a leaf spring.

[0055] As shown in FIG. 6, a third bolt insertion hole 82a is formed in the second plate portion 82. The third bolt insertion hole 82a penetrates the second plate portion 82 in the thickness direction. A female thread is formed on the inner circumferential surface of the second plate portion 82 that defines the third bolt insertion hole 82a. A first connecting hole 82b is formed in the second plate portion 82. The first connecting hole 82b penetrates the second plate portion 82 in the thickness direction. The first connecting holes 82b are located on both sides of the third bolt insertion hole 82a. A female thread is formed on the inner circumferential surface of the second plate portion 82 that defines the first connecting hole 82b.

[0056] 2 and 6, the longitudinal dimension L82 of the second plate portion 82 is larger than the dimension A33 of the frame opening 33b in the second direction Y. The lateral dimension S82 of the second plate portion 82 is smaller than the dimension A33 of the frame opening 33b in the second direction Y. In other words, the dimension A33 of the frame opening 33b in the second direction Y is larger than the lateral dimension S82 of the second plate portion 82 and smaller than the longitudinal dimension L82 of the second plate portion 82.

[0057] As shown in Fig. 7, fourth bolt insertion holes 83a are formed in the third plate portion 83. The fourth bolt insertion holes 83a penetrate the third plate portion 83 in the thickness direction. The third plate portion 83 is formed with second connecting holes 83b. The second connecting holes 83b penetrate the third plate portion 83 in the thickness direction. The second connecting holes 83b are located on both sides of the fourth bolt insertion hole 83a.

[0058] The third plate portion 83 is connected to the second plate portion 82 by the connecting bolt 84 inserted into the second connecting hole 83b of the third plate portion 83 engaging with the female thread of the first connecting hole 82b of the second plate portion 82.

[0059] The second plate portion 82 is inserted into the frame C-shaped steel 33. The longitudinal direction of the second plate portion 82 extends parallel to the second direction Y. The third plate portion 83 is located below the upper horizontal frame portion 32a. The third plate portion 83, together with the second plate portion 82, sandwiches the two lips 33a of the frame C-shaped steel 33. The second portion 62 of the frame-side mounting member 60 is located below the third plate portion 83.

[0060] The second shank 81b of the second bolt 81 is inserted through the second bolt insertion hole 62a of the second portion 62 of the frame-side mounting member 60 and the fourth bolt insertion hole 83a of the third plate portion 83. The second shank 81b of the second bolt 81 is engaged with the female thread of the third bolt insertion hole 82a of the second plate portion 82. The two lips 33a of the frame C-shaped steel 33 are sandwiched between the second plate portion 82, the second portion 62, and the third plate portion 83. In this way, the second portion 62 of the frame-side mounting member 60 is attached to the upper horizontal frame portion 32a of the outdoor frame 13a.

[0061] As shown in FIG. 2, the panel-side mounting member 50 and the frame-side mounting member 60 are connected within the frame 13 when viewed from the second direction Y. 2 and 8, the protrusion 52 of the panel-side mounting member 50 is inserted into the protrusion insertion hole 61a of the first portion 61 of the frame-side mounting member 60. A connecting nut 19 is engaged with the portion of the protrusion 52 that protrudes from the first portion 61. This connects the panel-side mounting member 50 and the frame-side mounting member 60.

[0062] The first portion 61 of the frame-side mounting member 60 is located between the two restricting portions 53 of the panel-side mounting member 50 in the second direction Y. In other words, the two restricting portions 53 are located on both sides of the first portion 61 in the second direction Y.

[0063] <How to install the lower exterior wall panel> A method for attaching the lower exterior wall panel 14b will now be described. The lower exterior wall panel 14b is attached by a worker.

[0064] First, the worker attaches the panel-side mounting member 50 to the lower exterior wall panel 14b, and also attaches the frame-side mounting member 60 to the upper horizontal frame portion 32a of the outdoor frame 13a. A method for attaching the panel-side mounting member 50 to the lower exterior wall panel 14b will now be described in detail.

[0065] First, the worker inserts the first head portion 71 a and the first plate portion 73 of the first bolt 71 into the C-shaped steel 43 for the panel. 9, the worker rotates the first bolt 71 so that the short side direction of the first plate portion 73 is parallel to the vertical direction Z. As a result, the dimension of the first plate portion 73 in the vertical direction Z becomes smaller than the dimension A43 of the panel opening 43b in the vertical direction Z, making it possible to insert the first plate portion 73 into the panel C-shaped steel 43 through the panel opening 43b.

[0066] Next, the worker inserts the first shaft portion 71b of the first bolt 71 into the first bolt insertion hole 51c of the main body portion 51 of the panel-side mounting member 50, and then locks the first nut 72 onto the first shaft portion 71b of the first bolt 71. At this time, the first bolt 71 rotates, and as shown in FIG. 2 , the longitudinal direction of the first plate portion 73 becomes parallel to the vertical direction Z. As a result, the dimension of the first plate portion 73 in the vertical direction Z becomes larger than the dimension A43 of the panel opening 43b in the vertical direction Z, and therefore, the first plate portion 73 is prevented from falling off the panel C-shaped steel 43.

[0067] When the first nut 72 is engaged with the first shaft portion 71b, the two lips 43a of the panel C-shaped steel 43 are sandwiched between the first plate portion 73 and the main body portion 51 of the panel-side mounting member 50. The panel-side mounting member 50 is attached to the lower exterior wall panel 14b.

[0068] A method for attaching the frame-side mounting member 60 to the upper horizontal frame portion 32a of the outdoor-side frame 13a will now be described in detail. The worker inserts the second plate portion 82 of the second plate portion 82 and the third plate portion 83 that are connected to each other into the frame C-shaped steel 33.

[0069] 10, the worker rotates the second plate portion 82 so that the short side direction of the second plate portion 82 is parallel to the second direction Y. As a result, the dimension of the second plate portion 82 in the second direction Y becomes smaller than the dimension A33 of the frame opening 33b in the second direction Y, and therefore the second plate portion 82 can be inserted into the frame C-shaped steel 33 through the frame opening 33b.

[0070] Next, the worker positions the second portion 62 of the frame-side mounting member 60 below the upper horizontal frame portion 32a. The worker inserts the second shank 81b of the second bolt 81 into the second bolt insertion hole 62a of the second portion 62 of the frame-side mounting member 60 and the fourth bolt insertion hole 83a of the third plate portion 83. The worker engages the second shank 81b of the second bolt 81 with the female thread of the third bolt insertion hole 82a of the second plate portion 82. At this time, the second plate portion 82 rotates, and as shown in FIG. 2 , the longitudinal direction of the second plate portion 82 becomes parallel to the second direction Y. As a result, the dimension of the second plate portion 82 in the second direction Y becomes larger than the dimension A33 of the frame opening 33b in the second direction Y, thereby preventing the second plate portion 82 from falling off from the frame C-shaped steel 33.

[0071] As the second bolt 81 is engaged with the second plate portion 82, the two lips 33a of the frame C-shaped steel 33 are sandwiched between the second plate portion 82 and the second portion 62 and third plate portion 83 of the frame-side mounting member 60. The second portion 62 of the frame-side mounting member 60 is attached to the upper horizontal frame portion 32a of the frame 13.

[0072] The worker attaches the panel-side mounting member 50 to the lower exterior wall panel 14b and attaches the frame-side mounting member 60 to the upper horizontal frame portion 32a of the outdoor frame 13a, and then connects the panel-side mounting member 50 to the frame-side mounting member 60. That is, the worker connects the panel-side mounting member 50 attached to the lower exterior wall panel 14b to the frame-side mounting member 60 attached to the upper horizontal frame portion 32a of the outdoor frame 13a.

[0073] Specifically, the worker positions the first portion 61 of the frame-side mounting member 60 so that it overlaps the second surface 51b of the main body 51 of the panel-side mounting member 50. At this time, the worker inserts the protruding portion 52 of the panel-side mounting member 50 into the protruding portion insertion hole 61a of the first portion 61. The worker then locks the connecting nut 19 onto the portion of the protruding portion 52 that protrudes from the first portion 61. This connects the panel-side mounting member 50 and the first portion 61 of the frame-side mounting member 60 within the frame 13 when viewed from the second direction Y. Therefore, the lower exterior wall panel 14b is attached to the upper horizontal frame portion 32a of the outdoor frame 13a by the upper mounting hardware 15a.

[0074] [Operation of this embodiment] The operation of this embodiment will be described. The frame 13 has two vertical frame portions 31 extending in the up-down direction Z, an upper horizontal frame portion 32a attached to the lower surface 12a of the beam 12 and extending in the first direction X, and a lower horizontal frame portion 32b located below the upper horizontal frame portion 32a and extending in the first direction X. The lower exterior wall panel 14b is disposed on one side of the frame 13 in the second direction Y. The lower exterior wall panel 14b is attached to the outdoor frame 13a by upper mounting hardware 15a.

[0075] The upper mounting hardware 15a has a panel-side mounting member 50 and a frame-side mounting member 60. The panel-side mounting member 50 is arranged closer to the frame 13 than the lower exterior wall panel 14b in the second direction Y. The panel-side mounting member 50 is attached to the lower exterior wall panel 14b. The frame-side mounting member 60 has a first portion 61 and a second portion 62. The first portion 61 is arranged to overlap the panel-side mounting member 50. The second portion 62 extends from the first portion 61 in a direction away from the exterior wall panel 14. The second portion 62 is attached to the upper horizontal frame portion 32a of the outdoor frame 13a. The panel-side mounting member 50 and the frame-side mounting member 60 are connected within the frame 13 when viewed from the second direction Y.

[0076] According to this configuration, the upper mounting hardware 15a is divided into two mounting members: the panel-side mounting member 50 and the frame-side mounting member 60. This allows the mounting members to be attached separately to the lower exterior wall panel 14b and the outdoor frame 13a. This makes it easier to attach the mounting hardware to each of the lower exterior wall panel 14b and the outdoor frame 13a, compared to when a single mounting hardware is first attached to one of the lower exterior wall panel 14b and the outdoor frame 13a and then attached to the other of the lower exterior wall panel 14b and the outdoor frame 13a.

[0077] Furthermore, the panel-side mounting member 50 and the frame-side mounting member 60 are connected within the frame 13 when viewed from the second direction Y. Therefore, even if a beam 12 is provided above the outdoor frame 13a, the beam 12 is unlikely to get in the way of connecting the panel-side mounting member 50 and the frame-side mounting member 60. This improves the ease of attaching the lower exterior wall panel 14b to the outdoor frame 13a.

[0078] [Effects of this embodiment] The effects of this embodiment will be described. (1) The upper mounting hardware 15a has a panel-side mounting member 50 and a frame-side mounting member 60. The panel-side mounting member 50 is disposed closer to the frame 13 than the exterior wall panel 14 in the second direction Y, and is attached to the lower exterior wall panel 14b. The frame-side mounting member 60 has a first portion 61 and a second portion 62. The first portion 61 is disposed so as to overlap the panel-side mounting member 50. The second portion 62 extends from the first portion 61 in a direction away from the exterior wall panel 14, and is attached to the upper horizontal frame portion 32a of the exterior frame 13a. The panel-side mounting member 50 and the frame-side mounting member 60 are connected within the frame 13 when viewed from the second direction Y.

[0079] According to this configuration, the upper mounting hardware 15a is divided into two mounting members: the panel-side mounting member 50 and the frame-side mounting member 60. This allows the mounting members to be attached separately to the lower exterior wall panel 14b and the outdoor frame 13a. This makes it easier to attach the mounting hardware to each of the lower exterior wall panel 14b and the outdoor frame 13a, compared to when a single mounting hardware is first attached to one of the lower exterior wall panel 14b and the outdoor frame 13a and then attached to the other of the lower exterior wall panel 14b and the outdoor frame 13a.

[0080] Furthermore, the panel-side mounting member 50 and the frame-side mounting member 60 are connected within the frame 13 when viewed from the second direction Y. Therefore, even if a beam 12 is provided above the outdoor frame 13a, the beam 12 is unlikely to get in the way of connecting the panel-side mounting member 50 and the frame-side mounting member 60. This improves the ease of attaching the lower exterior wall panel 14b to the outdoor frame 13a.

[0081] The frame-side mounting member 60 is attached to the upper horizontal frame portion 32a. Therefore, compared to when the frame-side mounting member 60 is attached to the vertical frame portion 31, the degree of freedom in the mounting position of the frame-side mounting member 60 relative to the outdoor frame 13a in the first direction X is increased.

[0082] (2) The panel-side mounting member 50 has a main body 51 and a protruding portion 52. The main body 51 is disposed so as to overlap the inner surface 14c of the lower exterior wall panel 14b. The protruding portion 52 protrudes from the main body 51 in a direction away from the exterior wall panel 14. A protruding portion insertion hole 61a, through which the protruding portion 52 is inserted, is provided in the first portion 61 of the frame-side mounting member 60. A connecting nut 19 is engaged with the protruding portion 52 inserted into the protruding portion insertion hole 61a.

[0083] One possible method of connecting the panel-side mounting member 50 and the frame-side mounting member 60 is to lock a nut onto a bolt that passes through the first portion 61 of the panel-side mounting member 50 and the frame-side mounting member 60. However, in this case, there is a risk that the head of the bolt will interfere with the lower exterior wall panel 14b. Note that if the bolt head is embedded in the lower exterior wall panel 14b with the shank of the bolt protruding from the inner surface 14c of the lower exterior wall panel 14b, the bolt head will not interfere with the lower exterior wall panel 14b, but in this case, it will be necessary to process the lower exterior wall panel 14b.

[0084] In contrast, in the present embodiment, when the panel-side mounting member 50 and the frame-side mounting member 13 are connected by engaging the connecting nut 19 with the protrusion 52 provided on the panel-side mounting member 50, the above-mentioned problem does not occur.

[0085] (3) The protrusion insertion hole 61a is an elongated hole that is long in the vertical direction Z. With this configuration, by adjusting the position of the protrusion 52 within the elongated hole, the position of the panel-side mounting member 50 relative to the frame-side mounting member 60 in the vertical direction Z can be adjusted. Therefore, the height of the lower exterior wall panel 14b can be adjusted.

[0086] (4) The panel-side mounting member 50 has two restricting portions 53. The two restricting portions 53 protrude from the main body portion 51 in a direction away from the exterior wall panel 14. The two restricting portions 53 are located on both sides of the first portion 61 of the frame-side mounting member 60 in the first direction X.

[0087] According to this configuration, positional deviation of the frame-side mounting member 60 relative to the panel-side mounting member 50 in the first direction X can be suppressed. (5) The lower exterior wall panel 14b has a frame interior 41 and an upper frame exterior 42. The frame interior 41 is located within the frame 13 when viewed from the second direction Y. The upper frame exterior 42 is located above the frame 13 when viewed from the second direction Y. The upper frame exterior 42 is aligned with the beam 12 in the second direction Y. The panel-side mounting member 50 is arranged to span from the upper frame exterior 42 to the frame interior 41. The panel-side mounting member 50 is attached to the upper frame exterior 42.

[0088] With this configuration, compared to when the panel-side mounting member 50 is attached to the frame interior 41, the mounting position of the panel-side mounting member 50 relative to the lower exterior wall panel 14b can be positioned at the upper end of the exterior wall panel 14. Therefore, the lower exterior wall panel 14b can be stably attached to the outdoor frame 13a.

[0089] In particular, in this embodiment, the upper portion of the lower exterior wall panel 14b is attached to the outdoor frame 13a with the upper mounting hardware 15a, and the lower portion of the lower exterior wall panel 14b is attached to the outdoor frame 13a with the lower mounting hardware 15b. That is, the lower exterior wall panel 14b is attached to the outdoor frame 13a at two locations, one above and one below. In this case, when the panel-side mounting member 50 is attached to the upper frame exterior 42, the distance between the two upper and lower mounting locations of the lower exterior wall panel 14b can be made wider compared to when the panel-side mounting member 50 is attached to the frame interior 41. Therefore, the lower exterior wall panel 14b can be attached to the outdoor frame 13a more stably.

[0090] Furthermore, as described above, because the upper mounting hardware 15a is divided into the panel-side mounting member 50 and the frame-side mounting member 60, the panel-side mounting member 50 can be attached to the lower exterior wall panel 14b in advance. Therefore, even if the mounting location of the panel-side mounting member 50 for the lower exterior wall panel 14b is located between the lower exterior wall panel 14b and the beam 12, the work of attaching the panel-side mounting member 50 to the lower exterior wall panel 14b is unlikely to be hindered.

[0091] (6) The lower exterior wall panel 14b and the panel-side mounting member 50 are connected by a panel-side connecting member 17. The panel-side connecting member 17 has a first bolt 71, a first nut 72, and a plate-shaped first plate portion 73. The first plate portion 73 is fixed to the first bolt 71.

[0092] The panel-side mounting member 50 has a first bolt insertion hole 51c through which the first bolt 71 is inserted. A panel C-shaped steel 43 is provided inside the lower exterior wall panel 14b. The panel C-shaped steel 43 has a panel opening 43b that opens on the inner surface 14c of the lower exterior wall panel 14b. A part of the first bolt 71 and a first plate portion 73 are inserted into the panel C-shaped steel 43. A first nut 72 protrudes from the inner surface 14c of the lower exterior wall panel 14b and is engaged with the first bolt 71 inserted into the first bolt insertion hole 51c.

[0093] The dimension A43 of the panel opening 43b in the vertical direction Z is smaller than the dimension L73 of the first plate portion 73 in the longitudinal direction and larger than the dimension S73 of the first plate portion 73 in the lateral direction.

[0094] According to this configuration, when inserting the first plate portion 73 into the panel C-shaped steel 43, the first bolt 71 is rotated so that the short side direction of the first plate portion 73 is parallel to the vertical direction Z. As a result, the dimension of the first plate portion 73 in the vertical direction Z becomes smaller than the dimension A43 of the panel opening 43b in the vertical direction Z, and therefore the first plate portion 73 can be inserted into the panel C-shaped steel 43 through the panel opening 43b.

[0095] After the first plate portion 73 is inserted into the panel C-shaped steel 43, the first nut 72 is locked onto the first bolt 71, and the first bolt 71 rotates, causing the longitudinal direction of the first plate portion 73 to become parallel to the vertical direction Z. As a result, the dimension of the first plate portion 73 in the vertical direction Z becomes larger than the dimension A43 of the panel opening 43b in the vertical direction Z, preventing the first plate portion 73 from falling out of the panel C-shaped steel 43.

[0096] When the first nut 72 is locked onto the first bolt 71, the two lips 43a of the panel C-shaped steel 43 are sandwiched between the first plate portion 73 and the panel-side mounting member 50. This attaches the panel-side mounting member 50 to the lower exterior wall panel 14b.

[0097] (7) The upper horizontal frame portion 32a of the outdoor frame 13a and the frame-side mounting member 60 are connected by a frame-side connecting member 18. The frame-side connecting member 18 has a plate-shaped second plate portion 82 and a second bolt 81. The upper horizontal frame portion 32a is formed of a frame C-shaped steel 33. The frame C-shaped steel 33 has a frame opening 33b that opens downward. The second plate portion 82 is inserted into the frame C-shaped steel 33. The second portion 62 of the frame-side mounting member 60 is located below the upper horizontal frame portion 32a. The second portion 62 of the frame-side mounting member 60 has a second bolt insertion hole 62a through which the second bolt 81 is inserted. The second bolt 81 inserted into the second bolt insertion hole 62a is engaged with the second plate portion 82.

[0098] The dimension A33 of the frame opening 33b in the second direction Y is smaller than the dimension L82 of the second plate portion 82 in the longitudinal direction and larger than the dimension S82 of the second plate portion 82 in the lateral direction.

[0099] According to this configuration, when inserting the second plate portion 82 into the frame C-shaped steel 33, the second plate portion 82 is rotated so that the short side direction of the second plate portion 82 is parallel to the second direction Y. As a result, the dimension of the second plate portion 82 in the second direction Y becomes smaller than the dimension A33 of the frame opening 33b in the second direction Y, and therefore the second plate portion 82 can be inserted into the frame C-shaped steel 33 through the frame opening 33b.

[0100] After the second plate portion 82 is inserted into the frame C-shaped steel 33, when the second bolt 81 is locked to the second plate portion 82, the second plate portion 82 rotates, and the longitudinal direction of the second plate portion 82 becomes parallel to the second direction Y. As a result, the dimension of the second plate portion 82 in the second direction Y becomes larger than the dimension A33 of the frame opening 33b in the second direction Y, and therefore, the second plate portion 82 is prevented from falling out of the frame C-shaped steel 33.

[0101] When the second bolt 81 is locked into the second plate portion 82, the two lips 33a of the frame C-shaped steel 33 are sandwiched between the second plate portion 82 and the second portion 62 of the frame-side mounting member 60. This attaches the frame-side mounting member 60 to the upper horizontal frame portion 32a of the outdoor frame 13a.

[0102] (8) The second bolt insertion hole 62a is an elongated hole that is long in the second direction Y. With this configuration, by adjusting the position of the second bolt 81 in the elongated hole, the position of the frame-side mounting member 60 relative to the outdoor frame 13a in the second direction Y can be adjusted. Therefore, the position of the lower exterior wall panel 14b in the second direction Y can be adjusted.

[0103] (9) When the dimension of the beam 12 in the vertical direction Z is large, as in this embodiment, the upper part of the lower exterior wall panel 14b is aligned with the beam 12. In this embodiment, even if the upper part of the lower exterior wall panel 14b is aligned with the beam 12, the lower exterior wall panel 14b can be attached to the outdoor frame 13a using the upper mounting hardware 15a. Therefore, the dimension of the beam 12 in the vertical direction Z can be increased. Increasing the dimension of the beam 12 in the vertical direction Z increases the cross section of the beam 12, thereby increasing the strength of the beam 12, and therefore the length of the beam 12 can be increased.

[0104] (10) When the lower exterior wall panel 14b has an upper frame outer part 42, it is possible to attach the upper frame outer part 42 of the lower exterior wall panel 14b to the beam 12 rather than to the frame 13. However, in this case, it is necessary to provide a stiffener to the beam 12, or to otherwise design the beam 12 so that the upper mounting hardware 15a can be attached. Furthermore, if the mounting hardware is not divided, attaching the mounting hardware to one of the lower exterior wall panel 14b and the beam 12 and then attempting to attach it to the other would be difficult, since the installation work would be performed within the space surrounded by the lower exterior wall panel 14b and the beam 12.

[0105] In contrast, in this embodiment, the lower exterior wall panel 14b is attached to the upper horizontal frame portion 32a of the outdoor frame 13a. Therefore, the structure of the beam 12 does not need to be such that the upper mounting hardware 15a can be attached. Also, as described above, in this embodiment, the panel-side mounting member 50 can be attached to the lower exterior wall panel 14b in advance. As a result, even if the attachment location of the panel-side mounting member 50 to the lower exterior wall panel 14b is located between the lower exterior wall panel 14b and the beam 12, the attachment work of the panel-side mounting member 50 to the lower exterior wall panel 14b is less likely to be hindered.

[0106] (11) The distance in the vertical direction Z between the mounting position of the upper mounting hardware 15a relative to the lower exterior wall panel 14b and the mounting position of the upper mounting hardware 15a relative to the exterior frame 13a may vary depending on the type of wall 10. In this case, by changing the dimensions of the panel-side mounting member 50 in the vertical direction Z, the lower exterior wall panel 14b can be mounted to the exterior frame 13a by the upper mounting hardware 15a without changing the position of the panel-forming C-shaped steel 43 on the exterior wall panel 14. Therefore, the exterior wall panel 14 can be standardized for multiple types of walls 10.

[0107] (12) The first bolt 71 is a low-head bolt. This makes it difficult for the first head 71a of the first bolt 71 to interfere with the C-shaped steel 43 for the panel when the first head 71a is inserted into the C-shaped steel 43 for the panel.

[0108] (13) In the frame-side mounting member 60, the second bolt insertion hole 62a is provided at a position different from the protrusion insertion hole 61a in the first direction X. With this configuration, the connecting position between the panel-side mounting member 50 and the frame-side mounting member 60 is shifted in the first direction X with respect to the frame-side connecting member 18. Therefore, the frame-side connecting member 18 is less likely to get in the way when connecting the panel-side mounting member 50 and the frame-side mounting member 60.

[0109] <Example of change> The above embodiment is an example of the possible forms of the exterior wall panel mounting hardware 15 and the exterior wall panel mounting structure, and is not intended to limit the forms. The exterior wall panel mounting hardware 15 and the exterior wall panel mounting structure may take forms different from those exemplified in the above embodiment. Examples 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.

[0110] The wall 10 is not limited to a hanging wall. For example, the wall 10 may be a wall located above a window sash. When the wall 10 is a wall located above a window sash, a shutter may be attached to the lower exterior wall panel 14b. The shutter cable is routed through a cable insertion hole provided inside the frame 41 of the lower exterior wall panel 14b and through the frame 13. In this case, if the panel-side mounting member 50 is attached to the frame inside 41 of the lower exterior wall panel 14b, it may not be possible to provide a cable insertion hole inside the frame inside 41 of the lower exterior wall panel 14b.

[0111] As described above, in this embodiment, the panel-side mounting member 50 is attached to the upper frame exterior 42 of the lower exterior wall panel 14b. In other words, the panel-side mounting member 50 is not attached to the frame interior 41 of the lower exterior wall panel 14b. In this case, the cable insertion hole does not interfere with the panel-side mounting member 50, so the cable insertion hole can be provided in the lower exterior wall panel 14b.

[0112] The wall 10 may be a wall that separates rooms indoors. The cross members are not limited to the beams 12. The cross members may be girders. The beam 12 may be formed by one H-shaped steel 21.

[0113] The beam 12 may be formed by two H-shaped steel beams 21 joined in the vertical direction Z. The lower exterior wall panel 14b may not have the upper frame exterior 42. In this case, the panel-side mounting member 50 may be attached to the frame interior 41 of the lower exterior wall panel 14b within the frame 13 when viewed from the second direction Y.

[0114] The protrusion insertion hole 61a does not have to be an elongated hole. Even in this case, at least the effect (1) of the above embodiment can be obtained. The panel-side mounting member 50 does not have to have the two restricting portions 53. Even in this case, at least the effect (1) of the above embodiment can be obtained.

[0115] The first head 71a and the first plate portion 73 of the first bolt 71 of the panel-side connecting member 17 may be inserted into the panel C-shaped steel 43 through an opening of the panel C-shaped steel 43 that opens at the end face of the lower exterior wall panel 14b in the first direction X. In this case, the dimension S73 of the first plate portion 73 in the short side direction may be larger than the dimension A43 of the panel opening 43b in the up-down direction Z.

[0116] The mounting structure of the panel-side mounting member 50 to the lower exterior wall panel 14b may be changed as appropriate. For example, the panel-side mounting member 50 may be mounted to the lower exterior wall panel 14b as follows.

[0117] A bolt is embedded in the lower exterior wall panel 14b. The shank of the bolt protrudes from the inner surface 14c of the lower exterior wall panel 14b and is inserted into the first bolt insertion hole 51c of the panel-side mounting member 50. A nut is locked to the part of the shank that protrudes from the panel-side mounting member 50.

[0118] The configuration of the panel-side connecting member 17 may be changed as appropriate. For example, the panel-side connecting member 17 may have a plate portion inserted into the panel C-shaped steel 43 and a bolt engaged with the plate portion. The plate portion has a bolt insertion hole penetrating through the plate portion in the thickness direction. An internal thread is formed on the inner peripheral surface of the plate portion that defines the bolt insertion hole. The shank of the bolt is inserted into the first bolt insertion hole 51c of the panel-side mounting member 50 and engaged with the internal thread of the plate portion.

[0119] In this case, it is preferable that the bolts be low-head bolts, which have low head heights. When the bolts are low-head bolts, the amount of bolt protrusion from the panel-side mounting member 50 is small. Therefore, even if the bolts are positioned at the same height as the flange 22b of the T-shaped steel 22, the bolts are less likely to interfere with the flange 22b.

[0120] The second plate portion 82 of the frame-side connecting member 18 may be inserted into the frame C-shaped steel 33 from an end face of the frame C-shaped steel 33 in the first direction X. In this case, the dimension S82 of the second plate portion 82 in the short side direction may be larger than the dimension A33 of the frame opening 33b in the second direction Y.

[0121] The third plate portion 83 of the frame side connecting member 18 may be omitted. The configuration of the frame-side connecting member 18 may be changed as appropriate. For example, the frame-side connecting member 18 may have a bolt having a head and a shank extending from the head, and a plate portion fixed to the head-side end of the bolt shank. The head and plate portion of the bolt are inserted into the frame C-shaped steel 33. The bolt shank extends downward from the frame opening 33b and is inserted into the second bolt insertion hole 62a in the second part 62 of the frame-side mounting member 60. A nut is engaged with the bolt shank.

[0122] The second bolt insertion hole 62a does not have to be an elongated hole. Even in this case, at least the effect (1) of the above embodiment can be obtained. The method of connecting the panel-side mounting member 50 and the frame-side mounting member 60 may be changed as appropriate.

[0123] For example, the panel-side mounting member 50 and the frame-side mounting member 60 may be connected by locking a nut onto a bolt that passes through the first portion 61 of the panel-side mounting member 50 and the frame-side mounting member 60. The bolt may have a head that is embedded in the lower exterior wall panel 14b with the shaft protruding from the inner surface 14c of the lower exterior wall panel 14b.

[0124] In the frame-side mounting member 60, the second bolt insertion hole 62a may be provided at the same position in the first direction X as the protrusion insertion hole 61a. <Additional Notes> This specification discloses the following techniques:

[0125] [Appendix 1] an exterior wall panel mounting hardware for mounting an exterior wall panel arranged on one side of the frame in a second direction orthogonal to the first direction and the up-down direction to a frame having two vertical frame portions extending in the up-down direction, an upper horizontal frame portion attached to the underside of a horizontal member extending in a first direction orthogonal to the up-down direction and extending in the first direction, and a lower horizontal frame portion located below the upper horizontal frame portion and extending in the first direction, the exterior wall panel mounting hardware comprising: a panel-side mounting member arranged on the frame side of the exterior wall panel in the second direction and attached to the exterior wall panel; and a frame-side mounting member having a first portion arranged to overlap with the panel-side mounting member and a second portion extending from the first portion in a direction away from the exterior wall panel and attached to the upper horizontal frame portion, the panel-side mounting member and the frame-side mounting member being connected within the frame when viewed from the second direction.

[0126] [Appendix 2] In the exterior wall panel mounting hardware described in Appendix 1, the panel side mounting member has a main body portion arranged to overlap the inner surface of the exterior wall panel, which is the surface on the frame side, and a protrusion portion protruding from the main body portion in a direction away from the exterior wall panel, and the first portion of the frame side mounting member is provided with a protrusion insertion hole through which the protrusion portion is inserted, and a nut is engaged with the protrusion portion inserted into the protrusion insertion hole.

[0127] [Appendix 3] In the exterior wall panel mounting hardware described in Appendix 2, the protrusion insertion hole is a long hole that is long in the vertical direction.

[0128] [Appendix 4] In the exterior wall panel mounting hardware described in Appendix 2 or Appendix 3, the panel side mounting member has two regulating portions that protrude from the main body portion in a direction away from the exterior wall panel and are located on both sides of the first portion in the first direction.

[0129] [Appendix 5] An exterior wall panel mounting structure in which an exterior wall panel arranged on one side of the frame in a second direction perpendicular to the first direction and the vertical direction is mounted to a frame having two vertical frame portions extending in the vertical direction, an upper horizontal frame portion attached to the underside of a horizontal member extending in the first direction perpendicular to the vertical direction and extending in the first direction, and a lower horizontal frame portion located below the upper horizontal frame portion and extending in the first direction, using exterior wall panel mounting hardware, wherein the exterior wall panel mounting hardware is the exterior wall panel mounting hardware described in Appendix 1.

[0130] [Appendix 6] In the exterior wall panel mounting structure described in Appendix 5, the exterior wall panel has a frame interior located within the frame when viewed from the second direction, and an upper frame exterior located above the frame and aligned with the cross member in the second direction, and the panel side mounting member is arranged so as to span from the upper frame exterior to the frame interior and is attached to the upper frame exterior.

[0131] [Appendix 7] The exterior wall panel mounting structure described in Appendix 5 includes a panel-side connecting member that connects the exterior wall panel and the panel-side mounting member, the panel-side connecting member having a first bolt, a first nut, and a plate-shaped first plate portion fixed to the first bolt, the panel-side mounting member having a first bolt insertion hole through which the first bolt is inserted, a panel C-shaped steel having a panel opening that opens on the inner surface that is the surface of the exterior wall panel facing the frame and into which a part of the first bolt and the first plate portion are inserted is provided inside the exterior wall panel, the first nut protrudes from the inner surface of the exterior wall panel and is engaged with the first bolt that is inserted into the first bolt insertion hole, and the dimension of the panel opening in the up-down direction is smaller than the longitudinal dimension of the first plate portion and larger than the lateral dimension of the first plate portion.

[0132] [Appendix 8] The exterior wall panel mounting structure described in Appendix 5 includes a frame-side connecting member that connects the upper horizontal frame portion of the frame and the frame-side mounting member, the frame-side connecting member having a plate-shaped second plate portion and a second bolt, the upper horizontal frame portion has a frame opening that opens downward and is made of a frame C-shaped steel into which the second plate portion is inserted, the second portion of the frame-side mounting member is located below the upper horizontal frame portion, the second portion of the frame-side mounting member has a second bolt insertion hole through which the second bolt is inserted, the second bolt inserted into the second bolt insertion hole is engaged with the second plate portion, and the dimension of the frame opening in the second direction is smaller than the longitudinal dimension of the second plate portion and larger than the lateral dimension of the second plate portion.

[0133] [Appendix 9] In the exterior wall panel mounting structure described in Supplementary Note 8, the second bolt insertion hole is an elongated hole that is long in the second direction. [Explanation of symbols]

[0134] 12...Beam as horizontal member, 12a...Underside, 13...Frame, 14...Exterior wall panel, 14c...Inside, 15...Exterior wall panel mounting hardware, 17...Panel side connecting member, 18...Frame side connecting member, 19...Connecting nut as nut, 31...Vertical frame portion, 32a...Upper horizontal frame portion, 32b...Lower horizontal frame portion, 33...C-shaped steel for frame, 33b...Frame opening, 41...Inside of frame, 42...Outside of upper frame, 43...C-shaped steel for panel, 43 b...panel opening, 50...panel side mounting member, 51...main body portion, 51c...first bolt insertion hole, 52...protrusion portion, 53...regulating portion, 60...frame side mounting member, 61...first portion, 61a...protrusion insertion hole, 62...second portion, 62a...second bolt insertion hole, 71...first bolt, 72...first nut, 73...first plate portion, 81...second bolt, 82...second plate portion, X...first direction, Y...second direction, Z...up and down direction.

Claims

1. An exterior wall panel mounting hardware for mounting an exterior wall panel arranged on one side of a frame in a second direction perpendicular to the first direction and the vertical direction to a frame having two vertical frame portions extending in a vertical direction, an upper horizontal frame portion attached to an underside of a horizontal member extending in the first direction perpendicular to the vertical direction and extending in the first direction, and a lower horizontal frame portion located below the upper horizontal frame portion and extending in the first direction, a panel-side mounting member that is disposed closer to the frame than the exterior wall panel in the second direction and is attached to the exterior wall panel; a frame-side mounting member having a first portion arranged to overlap the panel-side mounting member and a second portion extending from the first portion in a direction away from the exterior wall panel and attached to the upper horizontal frame portion; Equipped with The panel-side mounting member and the frame-side mounting member are connected within the frame when viewed from the second direction.

2. The panel-side mounting member has a main body portion arranged to overlap an inner surface of the exterior wall panel, which is the surface of the exterior wall panel facing the frame, and a protruding portion protruding from the main body portion in a direction away from the exterior wall panel, a protrusion insertion hole through which the protrusion is inserted is provided in the first portion of the frame-side mounting member, 2. The exterior wall panel mounting hardware according to claim 1, wherein a nut is engaged with the protrusion inserted into the protrusion insertion hole.

3. 3. The exterior wall panel mounting hardware according to claim 2, wherein the protrusion insertion hole is a long hole that is elongated in the vertical direction.

4. The panel side mounting member has two restricting portions that protrude from the main body portion in a direction away from the exterior wall panel and are located on both sides of the first portion in the first direction.

5. An exterior wall panel mounting structure in which an exterior wall panel arranged on one side of the frame in a second direction perpendicular to the first direction and the vertical direction is mounted to a frame having two vertical frame portions extending in a vertical direction, an upper horizontal frame portion attached to the underside of a horizontal member extending in the first direction and perpendicular to the vertical direction, and a lower horizontal frame portion located below the upper horizontal frame portion and extending in the first direction, using an exterior wall panel mounting hardware, 2. An exterior wall panel mounting structure, wherein the exterior wall panel mounting hardware is the exterior wall panel mounting hardware described in claim 1.

6. The exterior wall panel has a frame interior located within the frame when viewed from the second direction, and an upper frame exterior located above the frame and aligned with the cross member in the second direction, 6. The exterior wall panel mounting structure according to claim 5, wherein the panel-side mounting member is disposed so as to extend from the outside of the upper frame to the inside of the frame and is mounted on the outside of the upper frame.

7. a panel-side connecting member that connects the exterior wall panel and the panel-side mounting member; the panel-side connecting member includes a first bolt, a first nut, and a plate-shaped first plate portion fixed to the first bolt, a first bolt insertion hole through which the first bolt is inserted is provided in the panel side mounting member, a panel C-shaped steel beam having a panel opening that opens on an inner surface of the exterior wall panel that is a surface of the exterior wall panel facing the frame, and into which a portion of the first bolt and the first plate portion are inserted, is provided inside the exterior wall panel; the first nut protrudes from the inner surface of the exterior wall panel and is engaged with the first bolt inserted into the first bolt insertion hole, 6. The exterior wall panel mounting structure according to claim 5, wherein the dimension of the panel opening in the vertical direction is smaller than the dimension of the first plate portion in the longitudinal direction and larger than the dimension of the first plate portion in the lateral direction.

8. a frame-side connecting member that connects the upper horizontal frame portion of the frame and the frame-side mounting member; the frame-side connecting member has a plate-shaped second plate portion and a second bolt, the upper horizontal frame portion has a frame opening that opens downward and is configured by a frame C-shaped steel into which the second plate portion is inserted, the second portion of the frame-side mounting member is located below the upper horizontal frame portion, a second bolt insertion hole through which the second bolt is inserted is provided in the second portion of the frame-side mounting member, the second bolt inserted into the second bolt insertion hole is engaged with the second plate portion, 6. The exterior wall panel mounting structure according to claim 5, wherein the dimension of the frame opening in the second direction is smaller than the longitudinal dimension of the second plate portion and larger than the lateral dimension of the second plate portion.

9. The exterior wall panel mounting structure according to claim 8, wherein the second bolt insertion hole is an elongated hole that is long in the second direction.

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