JP4149090B2 - Building and wall panel fixing bracket used for it - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a building using this and suitable wall panel mounting brackets to the framing method, such as steel prefabricated houses.
[0002]
[Prior art]
As shown in FIGS. 11 and 12, the wall of the steel prefabricated house has columns (axes) A standing on the foundation at appropriate intervals, and a lower horizontal frame B is arranged between the lower ends of adjacent columns A. A shaft assembly (frame assembly) is formed by providing the structure, and a wall panel C (outer wall) such as a ceramic system is attached to the shaft assembly.
[0003]
In general, the column A and the lower horizontal frame B are made of a channel material having a C-shaped cross section with a vertical groove opened on one side (the vertical groove of the column A is denoted by reference numeral A1, and the column is formed on both sides of the vertical groove A1. A side plate constituting one side surface of A is indicated by a symbol A2.) Also, the wall panel C is formed with a vertical dovetail groove C1 for mounting. The dovetail C1 is formed by embedding a steel material (rail-like member) having a C-shaped cross section.
[0004]
And the wall panel C is attached to the lower horizontal frame B and the support | pillar A, As a means to fix the wall panel C to the support | pillar A, as shown in FIG. 12 and FIG. An L-shaped bracket D is fixed by welding, and the bracket D and the wall panel C are fixed by a key-type bolt E and a nut F that engage with a dovetail groove C1 of the wall panel C.
[0005]
The bracket D has an upwardly open U-shaped cutout hole D1 into which the bolt E is fitted, and the wall panel C and the bracket are installed as necessary so that the adjacent wall panels C are in the same plane. A space G between the support column A and the wall panel C is adjusted by interposing a downward opening U-shaped spacer G fitted over the bolt E from above.
[0006]
On the other hand, as means for attaching the wall panel C to the lower horizontal frame B, as shown in FIG. 14, a receiving metal H mounted on the lower horizontal frame B, a lower horizontal piece H1 for supporting the lower surface of the wall panel C, and a wall panel A key-type bolt E that engages with the C-shaped dovetail C1 is provided, and a nut F is screwed into the bolt E so that the wall panel C is fixed to the metal fitting H.
[0007]
[Problems to be solved by the invention]
By the way, a large number of wall panels C are used in the building, and these wall panels C are adjusted to have the same height and posture while adjusting the distance from each column A so as to be the same plane as a whole. Furthermore, it is necessary to leave a joint gap I of a predetermined interval (generally about 10 mm) between the adjacent wall panels C.
[0008]
However, in the conventional configuration in which only the lower horizontal frame B is supported via the receiving metal fitting H, the nut F is temporarily tightened when adjusting the posture and height of the wall panel C and the gap between the joint gaps I. In this state, the wall panel C is lifted by the large bar J, and the wall panel C is forcibly moved laterally by the large bar J inserted into the joint gap I as shown by the one-dot chain line, and then the nut F is finally tightened. For this reason, it is troublesome to attach the wall panel C according to a predetermined posture, and a great burden is imposed on the operator.
[0009]
In addition, since the adjustment of the distance between the column A and the wall panel C is performed by the spacer G, there is a problem that it is difficult to finely adjust the wall panels C so that they are on the same plane. Further, since the bracket D is welded to the support column A and cannot move, there are problems that other exterior members may interfere with the bracket D and problems that the wall panel cannot be increased even if the number of fixing points of the wall panel is increased. It was.
[0010]
Furthermore, when the height of the wall panel C is adjusted, the wall panel C may be lifted from the support piece H1 of the metal fitting H. For this reason, the stability of the wall panel C is also a problem. It was.
[0011]
In addition to the problem of increasing the man-hours for welding the bracket D, the protruding direction of the bracket is determined by the position of the support column, so the type of support column increases and the design and inventory management takes time. there were. In particular, the length and height of the bracket may vary depending on the type of wall panel, so the types of support columns must be increased, which makes the design, inventory management, and construction labor a pressing issue. It was.
[0012]
The present invention is intended to Rukoto extinguish solution to this problem.
[0013]
[Means for Solving the Problems]
The present invention includes a support column, a wall panel arranged outside the support column, and a fixing bracket for fixing the column, and the support column sandwiches the vertical groove with a C-shaped cross section having a vertical groove opened on one side surface. On both sides, there is a side plate that constitutes the one side surface, while the wall panel is arranged with its wide surface orthogonal to one side surface of the column, and the fixed surface is fixed to the wide surface. The present invention relates to a building having a structure in which vertical dovetails are formed so as to overlap with the metal fittings and the fixing metal fitting used therefor.
[0014]
The fixing bracket of the present invention includes a substantially flat L-shaped bracket body that overlaps one side surface of the support column and the wide surface of the wall panel, and a first screw-type fastener for fixing the bracket body to one side surface of the support column. And a second threaded fastener for fixing the metal fitting body to the wall panel.
[0015]
And the 1st screw type fastener in a fixed metal fitting is a support from the vertical groove which penetrates the holding member which overlaps with the metal fitting body from the outside, and the holding member and the metal fitting body. A first bolt inserted into the first bolt and a first nut screwed into the first bolt from the outside of the pressing member, and the pressing member is fitted into the vertical groove of the column so as not to be laterally displaced. A first locking body that holds the first bolt in a non-rotatable and non-removable state by fixing it to the inner surface of the column is fixed to the end of the first bolt that has entered the column. Furthermore, the hole which the 1st volt | bolt penetrated among the said metal fitting main body is a 1st long hole long in a horizontal direction.
[0016]
On the other hand, the second threaded fastener in the fixing bracket is a second bolt that passes through the bracket body and enters the dovetail of the wall panel, and the bracket body on the second bolt. And a second nut screwed from the outside of the second bolt. The end of the second bolt that enters the dovetail of the wall panel can be held by the inner surface of the dovetail of the wall panel to rotate the second bolt. The 2nd latching body hold | maintained impossible and cannot be removed is being fixed, and the hole which the 2nd nut penetrated among the said metal fitting main bodies is a 2nd long hole long in a horizontal direction.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
Next, an embodiment of the present invention will be described with reference to the drawings (FIGS. 1 to 10).
[0018]
Figure 1 is a perspective view showing a state of attaching the wall panels C using a solid Teikanagu 1 and the receiving metal fitting 2. Structure of the struts A and the lower support frame B and the wall panels C is you omit explanation the same as the conventional. Previously not a, the fixing tool 1 will be described with reference to FIGS.
[0019]
2 is a separated plan view of the fixing bracket 1, FIG. 3 is a separated front view of the fixing bracket 1, FIG. 4A is a view taken along the line AA in FIG. 2, and FIG. As shown in FIG. 1 and FIG. 1, the fixture 1 includes an L- shaped bracket body 3 in plan view that overlaps one side surface (a pair of side plates A2) of the support column A and the wall panel C, and a bracket body. Holding member 4 for pressing 3 to the column A, a first screw type fastener 5 for fixing them to the column A, and a second screw type fastener for fixing the wall body 3 to the wall panel C. The tool 6 is provided.
[0020]
The first screw-type fastener 5 includes a first bolt 7 penetrating the metal fitting body 3 and the pressing member 4, a plate-like first locking body 8 inserted into the column A, and the outer side of the pressing member 4. A first nut 9 screwed into the first bolt 7 is provided, and the first locking body 8 is provided integrally with the first bolt 7 by caulking or the like.
[0021]
The first locking body 8 has a width dimension that can be freely inserted into the vertical groove A1 of the support column A from the horizontal direction in a vertically long posture, and becomes a horizontal posture when the first bolt 7 is rotated. the dimension lodge on the inner surface, and cutting the end at an angle such that the horizontally posture when lodged in the inner surface of the column a. A conical coil spring 10 is fitted on a portion of the first bolt 7 between the first locking body 8 and the metal fitting body 3. The first engaging member 8 may be set to obtain stuck to the inner surface of the column A in an oblique posture.
[0022]
The coil spring 10 moves the first locking body 8 away from the metal fitting body 3 to facilitate the insertion of the first locking body 8 into the column A and the first locking by the rotation of the nut 9. It has a role to rotate the body 8 together.
[0023]
As shown in FIG. 4, the hole through which the first bolt 7 penetrates in the metal fitting body 3 is a first long hole 11 extending along the horizontal direction. For this reason, the metal fitting body 3 has a thickness of the wall panel C. It can be fastened to the column A in a state where the movement is adjusted by a certain amount in the direction.
[0024]
On the other hand, the hole 12 through which the first bolt 7 penetrates in the pressing member 4 is a simple round hole. Further, the pressing member 4 cannot be laterally displaced by fitting into the vertical groove A1 of the column A. A pair of upper and lower fitting portions 13 and 14 held in the bent are formed. In this case, while the protrusion size of the upper fitting portion 13 is small, the lower fitting portion 14 can be fitted into the column A so that it cannot be removed as shown in FIGS. Are formed in substantially the same longitudinal width dimension.
[0025]
A portion of the metal fitting body 3 that overlaps the wall panel C is set to a length that can cross the dovetail groove C1 of the wall panel C. The second screw type fastener 6 includes a second bolt 17 integrally provided with a second locking body 16 that can be engaged with and engaged with the dovetail groove C1 of the wall panel C, and a metal fitting body. 3, and a hole through which the second bolt 17 passes in the metal fitting body 3 is a second long hole 19 extending horizontally.
[0026]
The second locking body 16 is set so as to be held on the inner surface of the dovetail groove C1 in a horizontal posture, but may be set so as to be held on the inner surface of the dovetail groove C in an oblique posture.
[0027]
For example, as shown in FIG. 1, the second locking body 16 is formed with a square stopper portion 16a that fits into the opening edge C1 ′ of the dovetail groove C1. Since the locking body 16 cannot be rotated in a state where the stopper portion 16a hits the opening edge C1 of the dovetail groove C1, the stopper portion 16a is also fitted in the dovetail groove C1 and then the locking body 16 is rotated. Become. For this reason, the dovetail groove C1 is set to a depth at which the stopper portion 16a can also be fitted.
[0028]
Note that there are several types of wall panel C in which the position of the dovetail C1 is different. In this regard, the length of the portion of the metal fitting body 3 that overlaps the wall panel C depends on the type of the wall panel C. You may prepare several kinds of different ones, or manufacture one kind corresponding to the wall panel C where the distance from the end face to the dovetail C1 is the largest, and the length of the second long hole 19 By increasing the size, the dovetail groove C1 may be accommodated at any position.
[0029]
For reinforcement, a rib 20 is bulged and a flange 21 is bent at a portion of the metal fitting body 3 that overlaps the wall panel C. Further, the holding member 4 is formed by bending a side piece 4 a that can contact the rib 20 of the metal fitting body 3.
[0030]
Struts may be construction mounting the wall panels C using solid Teikanagu 1 at the site where erected, first, attaching the fixing bracket 1 to the column A.
[0031]
That is, first, as shown in FIG. 5, the fixed bracket 1, sideways posture around the axis is rotated 90 degrees in the first bolt 7 so that the second engaging member 16 is upward way home, and, The first locking body 8 is in a vertically extending longitudinal orientation, and in this state, the first locking body 8 and the lower fitting portion 14 of the pressing member 4 are inserted into the vertical groove A1 of the support column A, and then the fixing bracket 1 is rotated around the axis of the first bolt 7 to return to the posture as shown in FIG. 6, and then the first nut 9 is tightened, and the first locking body 8 and the first nut 9 The side plate A2, the metal fitting body 3, and the pressing member 4 are fastened together.
[0032]
In this case, as shown in FIG. 5, the lower fitting portion is rotated by rotating the fixing bracket 1 in a slightly inclined state so that only the lower fitting portion 14 of the pressing member 4 fits in the vertical groove A1 of the support column. 14 is inserted into the inside of the column A first, and then the fixture 1 is raised and the upper fitting portion 13 is fitted (the upper and lower fitting portions 14 are both placed in the longitudinal groove A1 in a state where the fixture 1 is turned sideways. If fitted, the fixing bracket 1 cannot be rotated).
[0033]
Further, when the first nut 9 is tightened, the coil spring 10 is compressed, but the coil spring 10 is conical and can be compressed in a flat state. Therefore, as shown by a one-dot chain line in FIG. The first locking body 8 can be reliably pulled to the state where the first locking body 8 is engaged with the inner corner portion of the column A, and the fixing bracket 1 can be securely fastened to the column A.
[0034]
Next, the receiving metal fitting 2 will be described with reference to FIGS. 7 and 8 in addition to FIG. 7 is a plan view, and FIG. 8 is a cross-sectional view taken along the line VIII-VIII of FIG. 7. As shown in both figures and FIG. 1, the bracket 2 is viewed from the side so as to cover the lower support frame B from above and outside. An inverted L- shaped main body 22 is provided, and an adjuster bolt 23 that contacts the bottom surface of the lower horizontal frame B is screwed into the upper end of the main body 22.
[0035]
A nut 24 is non-rotatably fixed to the lower end of the adjuster bolt 23, and a washer 24a is rotatably attached to the nut 24. That is, the nut 24 to which the washer 24a is rotatably crimped is fixed to the adjuster bolt 23.
[0036]
When the adjuster bolt 23 is only using a simple headed bolt, by the lower end of the bolt is uneven contact in the lower horizontal frame B, the adjuster bolt 23 rotates the adjuster bolt 23 is displaced laterally, positioning However, when the nut 24 with the rotatable washer 24a is used as in the present embodiment, the nut 24 with the washer 24a functions like a thrust bearing, so the adjuster bolt 23 is rotated. As a result, positioning and height adjustment of the wall panel C can be performed accurately and easily.
[0037]
A support piece 25 on which the lower end surface of the wall panel C rests is formed at the lower end of the vertical portion 22a of the main body portion 22, and the wall panel C and the receiving metal fitting 2 are provided at the vertical portion 22a of the main body portion 22. As an example of a locking portion that is held in a non-separable manner in the horizontal direction, a locking piece 26 that fits into the dovetail groove C1 of the wall panel C from below is provided. In this case, the locking piece 26 is manufactured separately from the main body portion 22 and fixed with rivets, but may be formed by cutting and raising the main body portion 22.
[0038]
On the front end of the main body portion 22 of the metal fitting 2, a downward protrusion 27 is formed integrally with a downward opening U-shape when viewed from the front. The downward projection 27 is set to overlap the upper piece B1 of the lower support frame B in plan view. The downward projection 27 is for aligning the approximate height and posture of the wall panel C at the beginning of the wall panel C mounting operation. That is, the height of the adjuster bolt 23 is adjusted to such an extent that the downward projection 27 hits the lower horizontal frame B, so that the wall panel C is aligned with the approximate height and posture.
[0039]
Next, an operation procedure in the case where the fixing bracket 1 is attached to the support column A in advance and the wall panel C is attached later will be described. First, an appropriate number of fixing brackets 1 are attached to the left and right support columns A by the method described with reference to FIGS. In this case, the first nut 9 is kept in a temporarily tightened state. Moreover, the 2nd latching body 16 of the fixture 1 is made into the attitude | position extended in an up-down direction so that it may fit in the dovetail groove C1 of the wall panel C.
[0040]
Next, the wall panel C is lifted, and the locking pieces 26 of the bracket 2 are inserted into the left and right dovetail grooves C1 from below, and the adjuster bolts 23 of the bracket 2 are placed on the inner bottom surface of the lower support frame B in this state. By making the wall panel C into a vertical posture, the second locking body 16 in the fixing bracket 1 is inserted into the dovetail groove C1, and then the second nut 18 is screwed to some extent, so that the wall panel C is fixed to the fixing bracket 1 Temporarily fix to.
[0041]
Then, by adjusting the height of the left and right receiving brackets 2 by rotating the adjuster bolt 23, the height and the posture of the wall panel C are accurately aligned. The distance between the support column A and the wall panel C is finely adjusted by moving in the front-rear direction along the hole 11, and the wall panel C is further shifted in the left-right direction along the second long hole 19 of the fixture 1. Thus, the joint gap between the adjacent wall panels C is finely adjusted, and finally, the nuts 9 and 18 are finally tightened to fix the wall panel C to the column A.
[0042]
The above description is a construction method in which the fixing bracket 1 is attached on site, but the wall panel C, the support column C, and the fixing bracket 1 may be set in a factory in advance. Specifically, with the wall panel C laid down, the column A is attached to the wall panel C via the fixing bracket 1, the fixing bracket 1 is temporarily tightened, and the column A is fixed on site, It is only necessary to finely adjust and fix the fixing bracket 1 in place. The lower support frame B and the receiving metal fitting 2 may also be attached in advance at the factory.
[0043]
According to the present embodiment , the height of the wall panel C can be finely adjusted by the metal fittings 2 and the front and rear positions and the left and right positions of the wall panel C can be finely adjusted, so that the wall panel C can be easily attached to an accurate position. it can. If the spring 10 is provided in the first screw-type fastener 5 as in the present embodiment, there is an advantage that the fixing bracket 1 can be easily attached to the column A. Note that other elastic means may be provided instead of the coil spring.
[0044]
[0045]
[0046]
[0047]
Moreover, you may fasten a wall panel to a receiving metal fitting by providing the same metal fastener as the 2nd screw type fastener 6 in the fixing metal fitting of embodiment. Moreover, when the horizontal width of the wall panel C is large, one wall panel may be attached to three or more support columns . Push even fitting portion of the member is sufficient if any down.
[0048]
If the stopper part 16a which fits in the opening edge C1 'of the dovetail groove C1 non-rotatably is provided in the 2nd locking body 16 like this embodiment, there exists an advantage which can improve earthquake resistance. This point will be described with reference to FIGS.
[0049]
9 is a plan sectional view, and FIG. 10 is a partial front view. For example, when an earthquake occurs and the wall panel C swings as shown by an arrow A in FIG. 10 (the wall panel C is in the direction of arrow A and in the opposite direction). As the fixing bracket 1 and the wall panel C move relative to each other, an external force that rotates the second bolt 16 acts as shown by an arrow B in FIG. There is a possibility that the locking body 16 rotates to a vertically long posture and comes out of the dovetail C.
[0050]
However, if the stopper portion 16a is provided on the second locking body 16 as in the present embodiment, the second locking body 16 does not rotate, so an external force that rotates the second bolt 16 acts. However, the attitude of the second locking body 16 does not change, and as a result, the second locking body 16 is prevented from coming out of the dovetail C, and the earthquake resistance can be improved. The first locking body 8 can also be formed with a stopper portion that fits in the opening edge of the column A so as not to rotate.
[0051]
In the embodiment, the support column is erected from the foundation, but a structure in which the support column is supported by the lower horizontal frame may be used, and such a structure is also included in the claims.
[0052]
[Operation and effect of the invention]
According to the present invention, the solid by adjusting shifted horizontally along the side of the column fastening position of the main metal member of Teikanagu, it can be easily fine-tune the distance between the posts and wall panels, furthermore, the wall Since the panel can be shifted in the left-right direction while being stacked on the metal fitting body of the fixing metal fitting, the joint gap between adjacent wall panels can be easily finely adjusted.
[0053]
Therefore, according to the present invention, even larger wall panels of the weight over a large area, it is possible to mount in the correct position, Ru can reduce the burden of labor and worker mounting operation.
[0054]
The fixed brackets are all SANYO for fastening to the strut with screws, moreover, the post because a cross-sectional C-type, the necessary number to an arbitrary height position in response to the fixed bracket of the wall panel size and weight, etc. In addition to being able to arrange without excess or deficiency, interference with other exterior members can be avoided.
[0055]
In addition, since it is not necessary to weld brackets to the columns, not only can the man-hours be reduced, but the absence of brackets makes it possible to share columns regardless of the type of wall panel, etc. And inventory management or construction work can be greatly reduced.
[0056]
Furthermore, the solid Teikanagu includes a pressing member, it is possible to attach firmly clamp the side plates and fitting main body of the strut, it is possible to improve the mounting strength of the mounting brackets for the posts. In this case, since the pressing member is fitted in the vertical groove of the column, the fixing bracket can be prevented from being displaced, and the strength of the pressing member can be improved by the rib effect. The mounting strength of the fixture can be improved.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a usage state of a metal fitting according to the present invention.
FIG. 2 is a separated plan view of a fixing metal fitting.
FIG. 3 is a separated front view of a fixing bracket.
4A is an AA view of FIG. 2, and FIG. 4B is a BB view of FIG. 3;
FIG. 5 is a plan view showing a mounting procedure of the fixing bracket.
FIG. 6 is a plan view showing a mounting procedure of the fixing bracket.
FIG. 7 is a plan view of a receiving metal fitting.
8 is a cross-sectional view taken along the line VIII-VIII of FIG.
FIG. 9 is a cross-sectional plan view of a second locking body.
FIG. 10 is a front view for explaining earthquake resistance.
11 is a view to schematic cross-sectional view of the wall structure in the framing method.
FIG. 12 is a plan sectional view in a state where a wall panel is attached with a conventional fixing bracket.
FIG. 13 is a front view showing a part of a procedure for attaching a wall panel using a conventional fixing bracket.
FIG. 14 is a perspective view of a conventional receiving metal fitting.
[Explanation of symbols]
A Prop (axis)
A1 vertical groove
Fitting main body side plate B under the horizontal frame C wall panel C1 dovetail I joint gap 1 fixing bracket 2 receiving metal 3 fixing bracket which constitute one aspect of the A2 strut 4 pressing member 5 first threaded fastener 6 second screw Type fasteners 7 first bolts 8 first locking bodies
9 1st nut 11 1st slot
13, 14 Fitting part of pressing member
16 Second locking body
17 Second bolt
18 Second nut 19 Second oblong hole

Claims (2)

The column is provided with a wall panel arranged outside the column and a fixing bracket for fixing the column, and the column is a flat section C type in which a vertical groove is opened on one side surface and on both sides sandwiching the vertical groove. While the side plate constituting the one side surface is present, the wall panel is disposed in a state in which the wide surface thereof is orthogonal to one side surface of the support column, and the wide surface overlaps the fixing bracket. In the upper and lower longitudinal dovetail is formed,
The structure
The fixing bracket includes a bracket body of flat, substantially L-overlapping and Hirohaba surface of one side and wall panels of the strut, a first threaded fastener for securing said fitting body to one side of the column, A second threaded fastener for fixing the metal fitting body to the wall panel ;
The first screw-type fastener includes a pressing member that overlaps the metal fitting main body from the outside, a first bolt that passes through the pressing member and the metal fitting main body and is inserted into a column from a vertical groove, and the first screw fastening device. A first nut that is screwed into the bolt from the outside of the pressing member, and the holding member is formed with a fitting portion that fits in the longitudinal groove of the column so as not to be laterally displaced. A first locking body that holds the first bolt in a non-rotatable and non-removable state by being held on the inner surface of the support post is fixed to the end that has entered the interior, and further, the first bolt of the bracket body is fixed. While the through hole is a first long hole that is long in the horizontal direction,
The second screw-type fastener includes a second bolt that penetrates the metal fitting body and enters the dovetail of the wall panel, and a second nut that is screwed into the second bolt from the outside of the metal fitting body. The second locking body that holds the second bolt in a non-rotatable and non-removable manner is fixed to the end of the second bolt that has entered the dovetail groove of the wall panel by the inner surface of the dovetail groove of the wall panel. And the hole through which the second nut of the metal fitting body passes is a second long hole that is long in the horizontal direction.
building. The column is provided with a wall panel arranged outside the column and a fixing bracket for fixing the column, and the column is a flat section C type in which a vertical groove is opened on one side surface and on both sides sandwiching the vertical groove. While the side plate constituting the one side surface is present, the wall panel is disposed in a state in which the wide surface thereof is orthogonal to one side surface of the support column, and the wide surface overlaps the fixing bracket. In the upper and lower longitudinal dovetail is formed,
The fixing bracket in the building,
A substantially L-shaped bracket body in plan view that overlaps one side of the column and the wide surface of the wall panel, a first screw-type fastener for fixing the bracket body to one side of the column, and the bracket body A second threaded fastener for fixing to the wide surface of the wall panel;
The first screw-type fastener includes a pressing member that overlaps the metal fitting main body from the outside, a first bolt that passes through the pressing member and the metal fitting main body and is inserted into a column from a vertical groove, and the first screw fastening device. A first nut that is screwed into the bolt from the outside of the pressing member, and the holding member is formed with a fitting portion that fits in the longitudinal groove of the column so as not to be laterally displaced. A first locking body that holds the first bolt in a non-rotatable and non-removable state by being held on the inner surface of the support post is fixed to the end that has entered the interior, and further, the first bolt of the bracket body is fixed. While the through hole is a first long hole that is long in the horizontal direction,
The second screw-type fastener includes a second bolt that penetrates the metal fitting body and enters the dovetail of the wall panel, and a second nut that is screwed into the second bolt from the outside of the metal fitting body. The second locking body that holds the second bolt in a non-rotatable and non-removable manner is fixed to the end of the second bolt that has entered the dovetail groove of the wall panel by the inner surface of the dovetail groove of the wall panel. And the hole through which the second nut of the metal fitting body passes is a second long hole that is long in the horizontal direction.
Wall panel fixing bracket in the building.