Joint width adjustment fittings and installation method for hanging wall structures.

Abstract

To provide a joint width adjustment metal fitting which can adjust a joint width of a lower joint of a hanging wall structure without removing an external facing material, and to provide a construction method of the hanging wall structure which uses the joint width adjustment metal fitting.SOLUTION: A joint width adjustment metal fitting 1 adjusts a width of a lower joint 4 formed between horizontal parts 32 of a hanging wall structure 2 formed by abutting the horizontal parts 32 with each other of two external facing materials 3a, 3b having a vertical part 31 formed by extending vertically, and the horizontal part 32 extending horizontally from a lower end of the vertical part 31. The joint width adjustment metal fitting 1 includes: a first member 5 fixed to a rear surface of the one external facing material 3a; a second member 6 fixed to a rear surface of the other external facing material 3b; and a connection member 7 for connecting the first member 5 and the second member 6 so as to be approaching / separated with each other. The connection member 7 can cancel the connection of the first member 5 and the second member 6 by operating from the lower joint 4.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a joint width adjustment fitting that adjusts the joint width of a bottom joint formed on the underside of a hanging wall-like structure formed by placing two L-shaped cross-section exterior materials facing each other, and a construction method for a hanging wall structure using the joint width adjustment fitting. [Background technology]

[0002] Various structures have been proposed in the past for fixing exterior walls in a way that allows the joint width of the joints formed between adjacent exterior materials to be adjusted. By adjusting the joint width to the desired width, it is possible to prevent a decrease in design quality caused by uneven joint widths and ensure the performance of the sealant.

[0003] For example, the structure described in Patent Document 1 has a long horizontal hole formed in the metal fittings that secure the exterior material, and a bolt fixed to the back surface of the exterior material slides through the long hole to be secured in place, making it possible to adjust the exterior material in the in-plane direction and also making it possible to adjust the joint width of the joint adjacent to the exterior material.

[0004] In addition, for example, in the structure described in Patent Document 2, the ends of a plate fitting, which is formed with bent ends, are pressed against the slopes of grooves formed in two adjacent exterior wall materials, and when the bolt that secures the plate fitting is rotated to displace the plate fitting toward the inside of the joint, the plate fitting presses against the slopes of the grooves formed in the exterior wall materials, and the exterior wall materials are displaced toward each other, thereby adjusting the joint width. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2001-27003 A [Patent Document 2] JP 2004-300856 A Summary of the Invention [Problem to be solved by the invention]

[0006] In a hanging wall structure formed by placing two L-shaped cross-section exterior materials facing each other, a base joint is formed on the underside. Since the inside of the hanging wall is closed, it is not possible to adjust the joint width by adjusting the fixing position of the exterior materials from the inside, and since the base joint formed on the underside is formed in a position that can be seen by looking up from below, if it is too wide, the design will be impaired.

[0007] Therefore, the present invention aims to provide a joint width adjustment fitting that can adjust the joint width of the lower joint of a hanging wall structure without removing the exterior material, and a construction method for a hanging wall structure using the joint width adjustment fitting. [Means for solving the problem]

[0008] The first joint width adjustment fitting of the present invention is a joint width adjustment fitting that adjusts the width of a sub-joint formed between the horizontal portions of a hanging wall formed by butting together the horizontal portions of two exterior materials having a vertical portion extending vertically and a horizontal portion extending horizontally from the lower end of the vertical portion, and is characterized in that it comprises a first member fixed to the back surface of one of the exterior materials, a second member fixed to the back surface of the other exterior material, and a connecting member that connects the first member and the second member so that they can move toward and away from each other, and the connecting member can be operated from the sub-joint to release the connection between the first member and the second member.

[0009] The second joint width adjustment fitting of the present invention is characterized in that the first member is engaged with the back surface of the vertical portion of one exterior material and is formed extending toward the other exterior material, and a screw hole is formed above the base joint, the second member is engaged with the back surface of the vertical portion of the other exterior material and is formed extending toward the one exterior material, and a long hole that is long in the direction toward and away from the first member is formed at a position overlapping with the screw hole, and the connecting member is a bolt that is inserted into the long hole and screwed into the screw hole with its head positioned downward toward the base joint.

[0010] The third joint width adjustment fitting of the present invention is characterized in that both side edges of the position where the long hole of the second member is formed have raised portions that guide the first member that is positioned overlapping the second member.

[0011] The construction method of the hanging wall structure of the present invention is a construction method of a hanging wall structure comprising: one exterior material having a vertical portion formed extending in the vertical direction and a horizontal portion extending horizontally from a lower end of the vertical portion, with a locking groove formed on a back surface of the vertical portion being locked and fixed to a first fixing metal fitting hanging down from a beam; another exterior material having a vertical portion formed extending in the vertical direction and a horizontal portion extending horizontally from a lower end of the vertical portion, with a locking groove formed on a back surface of the vertical portion being locked and fixed to a second fixing metal fitting hanging down from the beam; and a second or third joint width adjustment metal fitting, the construction method comprising the steps of: locking one end of the first member into the locking groove of the one exterior material to fix the first member to the one exterior material; and locking one end of the second member into the locking groove of the other exterior material to fix the second member to the other exterior material. the step of engaging the locking groove of the one exterior material to which the first member is fixed with the first fixing bracket; the step of engaging the locking groove of the other exterior material to which the second member is fixed with the second fixing bracket; the step of inserting the connecting member from the base joint between the horizontal portion of the one exterior material and the horizontal portion of the other exterior material, passing the connecting member through the long hole of the second member and screwing it into the screw hole of the first member in a loosened state; the step of applying force to the one exterior material and the other exterior material in a direction in which they approach or move away from each other to adjust the joint width of the base joint; and the step of operating the connecting member from between the base joints and tightening the connecting member into the screw hole to fix the first member and the second member to each other and fix the joint width of the base joint. Effect of the Invention

[0012] According to the first joint width adjustment fitting of the present invention, a first member and a second member are fixed to the back surface of two exterior materials, and the first member and the second member are connected by a connecting member so that they can move toward or away from each other, and this connecting member can be operated from the base joint to release the connection, so that when the two exterior materials are fixed to the main body and a hanging wall is formed, the connecting member is operated from the base joint to release the connection between the first member and the second member and the two exterior materials are adjusted in the direction of moving toward or away from each other to adjust the joint width of the base joint, and then the connecting member is operated from the base joint to connect and fix the first member and the second member, so that the joint width can be adjusted with a simple operation from the outside without removing the exterior materials.

[0013] According to the second joint width adjustment fitting of the present invention, the connecting member is a bolt, the connecting member is inserted into a long hole formed in the second member and screwed into the screw hole of the first member, and the head of the connecting member is arranged downward above the base joint, so that when the fastening of the connecting member to the screw hole is loosened, the connecting member becomes movable relative to the long hole while inserted in the long hole, and the first member and the second member can move toward and away from each other, so that the exterior material to which the first member is fixed and the exterior material to which the second member is fixed can be adjusted in the approaching and separating directions, and the joint width of the base joint can be adjusted. Also, by inserting a tool such as a wrench into the base joint and tightening the connecting member, the first and second members can be fixed and the joint width of the base joint can be fixed, so that the joint width of the base joint can be adjusted and fixed with a simple operation.

[0014] According to the third joint width adjustment fitting of the present invention, raised portions that guide the first member that is positioned overlaid on the second member are formed on both side edges of the position where the long hole of the second member is formed. Therefore, when the first member is engaged with the back surface of one exterior material and the second member is engaged with the back surface of the other exterior material and each exterior material is fixed to a main body such as a beam, the raised portions act as a guide and the first member is positioned overlaid on the second member. The screw hole of the first member and the long hole of the second member are easily positioned overlaid, facilitating the work of inserting the connecting member into the long hole and screwing it into the screw hole.

[0015] According to the construction method of the hanging wall structure of the present invention, a first member is fixed to the locking groove formed on the back surface of one exterior material, a second member is fixed to the locking groove formed on the back surface of the other exterior material, and then the locking grooves of the one exterior material and the other exterior material are locked to the first fixing metal fitting and the second fixing metal fitting hanging down from the beam, respectively, to form the hanging wall structure. Then, a connecting member is inserted from the base joint, and the connecting member is passed through the long hole of the second member and screwed into the screw hole of the first member in a loose state, and a force is applied to the one exterior material and the other exterior material in a direction toward or away from each other to adjust the joint width of the base joint. Then, the connecting member is operated between the base joints and tightened into the screw hole to fix the first member and the second member to each other, and the joint width of the base joint is fixed. Therefore, after the work of attaching the one exterior material and the other exterior material to the beam, the joint width of the base joint can be adjusted and fixed by a simple operation without removing the exterior materials. [Brief description of the drawings]

[0016] [Figure 1] 1 is an oblique view showing the overall configuration of a joint width adjustment fitting, exploded into a first member, a second member, and a connecting member. FIG. [Diagram 2] 13 is a perspective view illustrating the state in which the first member, the second member, and the connecting member of the joint width adjustment fitting are fixed to each other. FIG. [Diagram 3] A cross-sectional view showing the completed hanging wall structure. [Figure 4] FIG. 4 is a cross-sectional view showing a state in which a first member and a second member are respectively locked to two exterior materials. [Diagram 5] 11 is a cross-sectional view showing a state in which one exterior material is fixed to a first fixing bracket, and the other exterior material is fixed to a second fixing bracket. FIG. [Figure 6] 13 is a cross-sectional view illustrating the state in which a connecting member is inserted from the sub-joint. FIG. [Figure 7] 13 is a cross-sectional view showing the state in which the connecting member is screwed into the screw hole in a loose state to adjust the joint width of the base joint. FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0017] Hereinafter, an embodiment of the joint width adjustment fitting 1 according to the present invention and a construction method of a hanging wall structure using this joint width adjustment fitting 1 will be described with reference to the drawings. The hanging wall structure 2 is a structure in which at least both sides and the underside are arranged facing the outdoors, and is formed at the top of the boundary between a space such as a loggia, terrace, entrance porch, or built-in garage of a house and an external space. The hanging wall structure 2 may be a structure that hangs down from the tip of a ceiling in an outdoor space with a ceiling, such as a structure that hangs down from the tip of an upper floor such as an eaves, terrace roof, balcony floor, or overhang, or may be an outdoor independent beam whose both ends are erected on outdoor columns not shown in the figure so as to be a boundary between a roofless loggia and an external space. Note that the building in which the joint width adjustment fitting 1 and the hanging wall structure 2 are formed is not limited to a house, and can be used in various facilities in which a hanging wall structure 2 is formed.

[0018] As shown in Fig. 3, the joint width adjustment fitting 1 is a joint width adjustment fitting 1 that adjusts the width of the lower joint 4 formed between the horizontal parts 32 of a hanging wall structure 2 formed by butting together the horizontal parts 32 of one exterior material 3a having an L-shaped cross section with a vertical part 31 and a horizontal part 32 extending horizontally from the lower end of the vertical part 31, and the other exterior material 3b having an L-shaped cross section with a vertical part 31 and a horizontal part 32 extending horizontally from the lower end of the vertical part 31. As shown in Figs. 1 and 2, the joint width adjustment fitting 1 includes a first member 5 fixed to the back surface of one exterior material 3a, a second member 6 fixed to the back surface of the other exterior material 3b, and a connecting member 7 that connects the first member 5 and the second member 6 so that they can approach and separate from each other.

[0019] As shown in Fig. 1, the first member 5 is formed by bending a metal plate, and has a first locking end 51 formed at one end to be locked to one exterior material 3a, a first horizontal extension 52 extending horizontally from the first locking end 51, and a screw hole 53 formed in the first horizontal extension 52. The first locking end 51 is locked to a locking groove 33 formed by lip channel steel on the back surface of the vertical part 31 of one exterior material 3a. The first locking end 51 locks the first member 5 to one exterior material 3a by sandwiching the lower lip of the locking groove 33, and has two inner hanging pieces 54 that abut against the lips inside the locking groove 33 and an outer hanging piece 55 that abuts against the lip outside the locking groove 33. The first horizontal extending portion 52 is in the form of a flat plate extending in the protruding direction of the horizontal portion 32 of one exterior material 3a with the first engaging end portion 51 engaged in the engaging groove 33, and has a step 56 formed in the middle in the extending direction. A screw hole 53 into which the connecting member 7 can be screwed is formed on the extending direction side of the step 56 of the first horizontal extending portion 52.

[0020] The second member 6, like the first member 5, is formed by bending a metal plate, and has a second locking end 61 formed at one end to be locked to the other exterior material 3b, a second horizontal extension 62 extending horizontally from the second locking end 61, a long hole 63 formed in the second horizontal extension 62, and rising parts 64 rising from both side edges of the second horizontal extension 62. The second locking end 61 has a configuration similar to that of the first locking end 51, and is locked to a locking groove 33 formed by lip channel steel on the back surface of the vertical part 31 of the other exterior material 3b. The second locking end 61 locks the second member 6 to the other exterior material 3b by sandwiching the lower lip of the locking groove 33, and has two inner hanging pieces 65 that abut against the lip inside the locking groove 33 and an outer hanging piece 66 that abuts against the lip outside the locking groove 33.

[0021] The second horizontal extension 62 is a flat plate extending in the protruding direction of the horizontal portion 32 of the other exterior material 3b with the second locking end 61 locked in the locking groove 33. The second horizontal extension 62 has a long hole 63 formed along its extension direction. The long hole 63 is formed in the center of the width direction of the second horizontal extension 62. The rising portions 64 are formed on both side edges including the portion where the long hole 63 of the second horizontal extension 62 is formed, and are arranged parallel to the long hole 63. The distance between the two rising portions 64 is slightly longer than the width of the first horizontal extension 52 of the first member 5 or is the same length as the width of the first horizontal extension 52. The first horizontal extension 52 is arranged overlapping the second horizontal extension 62 between the rising portions 64, so that the first member 5 can slide relative to the second member 6. When the first horizontal extension portion 52 is positioned overlapping the second horizontal extension portion 62, the screw hole 53 formed in the first horizontal extension portion 52 is positioned overlapping the long hole 63 formed in the second horizontal extension portion 62.

[0022] The connecting member 7 is a bolt that is inserted from below into an elongated hole 63 formed in the second horizontal extension portion 62 and screwed into a screw hole 53 formed in the first horizontal extension portion 52. The width of the elongated hole 63 is formed slightly longer than the nominal diameter of the connecting member 7, and is a length that allows the connecting member 7 to be inserted, and the length of the elongated hole 63 is a length required as an adjustment margin when adjusting the joint width of the base joint 4 of one exterior material 3a and the other exterior material 3b by moving the first member 5 and the second member 6 closer to and farther from each other. In addition, the screw hole 53 has a diameter that allows the connecting member 7 to be screwed in, and is threaded. When the connecting member 7 is tightened, as shown in Figures 2 and 3, the first horizontal extension portion 52 is pulled toward the head of the connecting member 7, and the second horizontal extension portion 62 is sandwiched between the first horizontal extension portion 52 and the head of the connecting member 7, and the first member 5 and the second member 6 are fixed to each other. When the connecting member 7 is loosened, the first horizontal extension portion 52 and the head of the connecting member 7 separate, allowing the connecting portion to move along the long hole 63 of the second horizontal extension portion 62, and the first member 5 and the second member 6 can be displaced in a direction moving closer to or away from each other, so that the exterior material 3a to which the first member 5 is fixed and the other exterior material 3b to which the second member 6 is fixed can move closer to or away from each other.

[0023] As shown in FIG. 3, the two exterior materials 3a and 3b are hung and fixed to the beams 21, and have a vertical portion 31 formed in a vertical plane and a horizontal portion 32 formed in a plane extending horizontally from the lower end of the vertical portion 31. The vertical portion 31 has an uneven pattern on the surface facing the outdoors to improve design, and two horizontal locking grooves 33 are formed on the back surface facing the inside of the hanging wall structure 2. The locking grooves 33 are lip channel steel embedded in the exterior materials 3a and 3b so as to open toward the inside of the hanging wall structure 2, and of the two locking grooves 33, the lower locking groove 33 is the locking groove 33 that locks the first member 5 and the second member 6 of the joint width adjustment fitting 1, respectively. The two exterior materials 3a and 3b are made of concrete with reinforcing bars embedded therein, for example, and the vertical portion 31 and the horizontal portion 32 are integrally cast.

[0024] The beam 21 is, for example, an H-shaped steel, and is installed between outdoor columns (not shown in this embodiment). A first fixing bracket 8 for suspending one of the exterior materials 3a is formed on the upper surface of the lower flange of the beam 21. The first fixing bracket 8 is inverted L-shaped when viewed from the side, and is fixed to one of the upper surfaces of the lower flange of the beam 21 with bolts and nuts, and is formed so as to bend vertically downward and hang down from the tip of the flange. The hanging part is formed with a hook 10 that opens upward and can be hooked onto the upper lips of two upper and lower locking grooves 33 formed on the back surface of the vertical part 31 of one of the exterior materials 3a.

[0025] A second fixing bracket 9 for suspending the other exterior material 3b is formed on the underside of the flange on the lower side of the beam 21. The second fixing bracket 9 is inverted L-shaped when viewed from the side, and is fixed to the underside of the flange with bolts and nuts, and is formed so as to bend vertically downward and hang down from the tip of the flange opposite the part from which the first fixing bracket 8 hangs down. The hanging part is formed with a hook 10 that opens upward and can be hooked onto the upper lips of two upper and lower locking grooves 33 formed on the back surface of the vertical part 31 of the other exterior material 3b.

[0026] In the hanging wall structure 2 of this embodiment, upper exterior materials 22 are formed on the vertical parts 31 of two exterior materials 3a, 3b, respectively, and a coping 23 is formed to cover the two upper exterior materials 22, forming an independently closed outdoor beam. Note that the hanging wall structure 2 is not limited to this, and may be a structure formed by hanging down from the tip of an upper floor part such as an eaves, terrace roof, balcony floor part, or overhang without a coping 23 or upper exterior material 22 provided at the top.

[0027] When constructing the hanging wall structure 2 formed as described above, as shown in Fig. 5, the first fixing bracket 8 and the second fixing bracket 9 are fixed to the lower flange of the H-shaped steel beam 21 erected outdoors, and are hung down from both sides of the lower flange of the beam 21. Next, as shown in Fig. 4, the first locking end 51 of the first member 5 is locked in the locking groove 33 on the lower side of one exterior material 3a, thereby fixing the first member 5 to one exterior material 3a. Furthermore, the second locking end 61 of the second member 6 is locked in the locking groove 33 on the lower side of the other exterior material 3b, thereby fixing the second member 6 to the other exterior material 3b.

[0028] 5 and 6, the two upper and lower locking grooves 33 of one exterior material 3a to which the first member 5 is fixed are engaged with two hooks 10 of a first fixing bracket 8 hanging down from the lower flange of the beam 21, thereby fixing one exterior material 3a to the beam 21. After that, the two upper and lower locking grooves 33 of the other exterior material 3b to which the second member 6 is fixed are engaged with two hooks 10 of a second fixing bracket 9 hanging down from the lower flange of the beam 21 on the side opposite to the first fixing bracket 8, thereby fixing the other exterior material 3b to the beam 21.

[0029] When one exterior material 3a and the other exterior material 3b are engaged with the first fixing bracket 8 and the second fixing bracket 9, respectively, and fixed to the beam 21, the first horizontal extension portion 52 of the first member 5 overlaps the second horizontal extension portion 62 of the second member 6 and is located between the raised portions 64 formed on both side edges of the second horizontal extension portion 62, and is positioned so that the screw hole 53 formed in the first horizontal extension portion 52 and the long hole 63 formed in the second horizontal extension portion 62 overlap.

[0030] Then, as shown in Figs. 6 and 7, a connecting member 7 is inserted from the base joint 4 formed between the horizontal parts 32 of the two exterior materials 3a and 3b, with the head held by, for example, a wrench (not shown), and the screw part of the connecting member 7 is passed through the long hole 63, and further screwed into the screw hole 53 of the first member 5 in a loose state that is not completely tightened. As a result, the connecting member 7 is screwed into the screw hole 53 so as to be movable along the length direction of the long hole 63. Then, the width of the base joint 4 is measured, and if it is longer than the appropriate width, the one exterior material 3a and the other exterior material 3b are pushed in a direction approaching each other to adjust the width of the base joint 4, and then the head of the connecting member 7 is rotated between the base joint 4 with a tool such as a wrench (not shown), and the connecting member 7 is completely tightened into the screw hole 53, so that the head of the connecting member 7 and the first horizontal extension part 52 sandwich the second horizontal extension part 62, fixing the first member 5 and the second member 6 to each other, and fixing the joint width of the base joint 4.

[0031] In addition, if the width of the sub-joint 4 is measured and found to be shorter than the appropriate width, a tool such as a crowbar (not shown) is inserted between the sub-joints 4 to widen and adjust the width of the sub-joint 4, and then the head of the connecting member 7 is rotated between the sub-joints 4 with a tool such as a wrench, and the connecting member 7 is completely tightened into the screw hole 53, thereby sandwiching the second horizontal extension portion 62 between the head of the connecting member 7 and the first horizontal extension portion 52, fixing the first member 5 and the second member 6 to each other, and fixing the joint width of the sub-joint 4.

[0032] If the measured width of the subjoint 4 is appropriate, the step of adjusting the width of the subjoint 4 is not performed, and the head of the connecting member 7 is rotated to fix the joint width of the subjoint 4. Adjustment of the width of the subjoint 4 is not limited to being performed during construction of the hanging wall structure 2. For example, when the width of the subjoint 4 narrows or widens over time, causing a problem in the design of the hanging wall structure 2, a tool such as a wrench may be inserted between the subjoints 4 as appropriate, the head of the connecting member 7 is rotated, and the connecting member 7 is loosened to adjust the width of the subjoint 4, and the connecting member 7 is then tightened to fix the joint width, and the width of the subjoint 4 may be adjusted.

[0033] It goes without saying that the embodiment of the present invention is not limited to the above-mentioned embodiment, and can be modified as appropriate without departing from the scope of the concept of the present invention. [Industrial Applicability]

[0034] The joint width adjusting fitting 1 and the construction method for a hanging wall structure of the present invention are suitable as fittings and a construction method for a hanging wall structure for adjusting the joint width of the lower joint 4 of a hanging wall structure 2 formed at the upper part of the boundary between a loggia of a house or a porch in front of the entrance and its external space. [Explanation of symbols]

[0035] 1 Joint width adjustment fitting 2. Hanging wall structure 3a One side of the exterior material 3b Other exterior material 4 Bottom joint 5 First member 6 Second member 7 Connecting members 8 First fixing bracket 9 Second fixing bracket 31 Vertical section 32 Horizontal section 53 Screw hole 63 long hole 64 Rising part

Claims

1. A joint width adjustment fitting for adjusting the width of a base joint formed between two horizontal parts of a hanging wall structure formed by butting together the horizontal parts of two exterior materials having a vertical part formed by extending vertically and a horizontal part extending horizontally from the lower end of the vertical part, A first member fixed to a back surface of one of the exterior materials; A second member fixed to the back surface of the other exterior material; A connecting member that connects the first member and the second member so that they can approach and separate from each other; Equipped with A joint width adjustment fitting characterized in that the connecting member can be operated from the lower joint to release the connection between the first member and the second member.

2. The first member is engaged with the back surface of the vertical portion of one exterior material and is formed to extend toward the other exterior material, and a screw hole is formed above the base joint, The second member is engaged with a rear surface of the vertical portion of the other exterior material, and is formed to extend toward the one exterior material. A long hole is formed in a position overlapping with the screw hole in a direction toward and away from the first member, The joint width adjustment fitting according to claim 1, characterized in that the connecting member is a bolt that is inserted into the long hole and screwed into the screw hole, with its head facing downward toward the base joint.

3. A joint width adjustment fitting as described in claim 2, characterized in that both side edges of the second member at the position where the long hole is formed have raised portions formed to guide the first member that is positioned overlapping the second member.

4. an exterior material having a vertical portion formed by extending in the vertical direction and a horizontal portion extending horizontally from a lower end of the vertical portion, the locking groove formed on the back surface of the vertical portion being locked and fixed to a first fixing metal fitting hanging down from a beam; Another exterior material has a vertical portion formed by extending in the vertical direction and a horizontal portion extending horizontally from a lower end of the vertical portion, and an engagement groove formed on the back surface of the vertical portion is engaged with and fixed to a second fixing metal fitting hanging down from the beam; The joint width adjusting fitting according to claim 2 or 3, A construction method for a hanging wall structure comprising: A step of fixing the first member to the one exterior material by engaging one end of the first member with an engaging groove of the one exterior material; A step of fixing the second member to the other exterior material by engaging one end of the second member with an engaging groove of the other exterior material; a step of engaging the locking groove of the one exterior material to which the first member is fixed, with the first fixing metal fitting; a step of engaging the locking groove of the other exterior material to which the second member is fixed, with the second fixing metal fitting; A step of inserting the connecting member from the joint between the horizontal portion of the one exterior material and the horizontal portion of the other exterior material, passing the connecting member through the long hole of the second member, and screwing the connecting member into the screw hole of the first member in a loose state; A step of adjusting a joint width of the lower joint by applying a force to the one exterior material and the other exterior material in a direction in which they approach or move away from each other; A step of operating the connecting member between the base joints and tightening the connecting member into the screw holes to fix the first member and the second member to each other and fix a joint width of the base joint; A construction method for a hanging wall structure comprising the steps of:

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