JPH0893177A - Dry execution mounting searing device for walling - Google Patents

Abstract

PURPOSE: To simplify work by mounting walling having interlocking grooves on the upper and lower end faces on a wall with bearing devices connected and fixed to an anchorage fixed to the wall and projected in front. CONSTITUTION: Interlocking grooves 61 for hooking on mounting bearing devices are formed in the upper and lower ends of tiles 60 arranged up and down along a wall 62. Then, after an anchorage 1 having an L-shaped section is fixed to the wall 62 with an anchor bolt 1a, a first bearing device 2 is connected to the anchorage 1 with a bolt 1c and a nut 1d. After that, a holding piece 2b is fitted into an interlocking space 3b so as to cover a second bearing device 3 from the upper part of the first bearing device 2 and is connected, and the first and second bearing devices 2 and 3 are interlocked with joint sections 20b of holding devices 20 inserted in the interlocking grooves 61 of the tiles 60 and are fixed. Accordingly, shaking, position slippage, etc., can be prevented after the execution.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mounting support for fixing a wall material of a ceramic plate such as a tile by a dry method using a wall of a building as a base.

[0002]

2. Description of the Related Art As a construction for fixing large tiles and various kinds of porcelain plates to a wall for exterior or interior of a building, holding metal fittings are fixed in advance on the wall side and the holding metal fittings are attached to the side surfaces of the porcelain plate. It has been generally practiced to attach a fixing metal fitting to be connected to and to hook the fixing metal fitting to a holding metal fitting.

FIG. 15 shows a conventional example of such a fixing structure, and FIG. 15A is described in JP-A-6-30323.

In this example, a substantially flat plate-like connecting metal fitting 51 is horizontally connected to a fixing metal fitting 50 having an L-shaped cross section fixed to a wall by bolts and nuts 50a.
The holding metal fitting 52, which is in a substantially vertical posture with respect to 1, is connected. Then, a slit is cut in the connecting metal fitting 51 in the direction of the frontage, both ends of the holding metal fitting 52 are inserted into the slit, and the lower end of the holding metal fitting 52 is immersed in the engaging groove 61 cut in the upper end of the tile 60. By doing so, the tile 60 is constrained to the wall side. In this case, since the holding metal fitting 52 is only sandwiched between the slits, it swings as shown by the arrow in the figure. Therefore, the procedure for constructing the elastic adhesive 63 in the engagement groove 61 and stabilizing it is as follows. Become.

Further, the example of FIG. 2B is an example in which the connecting fitting 51 and the holding fitting 52 in the example of FIG.
The holding metal fitting 53 is joined by 0a. The holding metal fitting 53 has a vertical cross-sectional shape obtained by rotating the T-shape by 90 ° in order to give a restraining force to the rows of the upper and lower tiles 60, and the holding metal pieces 53 are arranged on the lower tiles 60 as shown in the drawing. On the other hand, it is possible to restrain and fix by lowering the lower end into the engaging groove 61.

[0006]

In the example in which the two connecting metal fittings 51 and the holding metal fittings 52 are connected to the fixing metal fittings 50, the tile 60 can be formed by inserting the left and right ends of the holding metal fittings 52 into the slits of the connecting metal fittings 51. Since it can be immersed in the engaging groove 61, the construction is relatively easy.

However, since the posture of the holding metal fitting 52 is not stable, the work of filling the elastic adhesive 63 is increased. In addition, a curing time is required until the elastic adhesive 63 is filled and then cured, and the posture of the tile 60 may change due to wind pressure or external force during construction during this period. For this reason, a defective finish or adjustment work for preventing the defective finish is required, and an obstacle in terms of workability remains.

Further, in the latter example, since the holding metal fitting 53 is connected to the fixing metal fitting 50 by the bolt and nut 50a, its posture does not rock.

However, in the construction, the tile 6
While holding 0 on the one hand, the holding metal fitting 53 and the fixing metal fitting 50 are aligned and the bolts and nuts 50a are fastened. In addition, the final adjustment of the position of the tile 60 is performed in the same manner, and from the viewpoint of the construction of the tile 60, the example of FIG.

As described above, the conventional fixture used for fixing the wall material such as the tile 60 to the wall cannot be said to be optimized in terms of stable holding of the wall material and workability.

An object to be solved in the present invention is to provide a mounting support which can fix a wall material such as a tile easily and in a stable posture.

[0012]

SUMMARY OF THE INVENTION The present invention is directed to a top surface and / or
Alternatively, a wall member having an engaging groove cut in the lower end surface in the width direction is a support structure that is fixed to a wall of a building and is attached to the wall via a fixture protruding forward, and is connected and fixed to the fixture. A first support and a second support connected to the first support, and the second support is in a posture parallel to the wall and can be inserted into the engagement groove of the wall material. It has a vertical cross-sectional shape, and is detachably connected between the first support tool and the second support tool by a restraint joining structure that regulates a change in the posture of the second support tool with respect to the wall. To do.

The restraint joining structure is composed of a holding piece raised to the front edge side of the first support tool and an engaging piece provided on the back surface side of the second support tool and fitted to the holding piece. can do.

The restraint joining structure is provided with a restraint piece provided on the back surface side of the holding piece whose front edge side is bent downward and having a gap between the restraint joining structure and the back surface of the holding piece, and above the restraint piece. It may be configured to include a holding hole that is located at the opening and an engaging piece that is provided on the back surface side of the second support tool and that fits into the gap of the restraining piece part through the holding hole.

Further, the restraint joining structure has a holding piece which is erected on the front edge side of the first supporting tool, and a base which is a part of the second supporting tool and is seated around the holding piece of the first supporting tool. It can also be constituted by a holding item cut into this base and fitted with the holding piece.

[0016]

[Effects] Even if there are two support tools, the first and second support tools, for connecting the fixture fixed to the wall and the wall material, the first support tool is connected to the fixture by a connecting means such as bolts and nuts. In this case, after the second support tool is connected to the first support tool, the second support tool is held by the restraining joint structure between the first support tool and the second support tool without being inclined unnecessarily with respect to the wall. An unsupported support structure is obtained.

Therefore, after the work of connecting the first support tool to the fixing tool, only the operation of connecting the second support tool to the first support tool while holding the wall material is sufficient, and the workability is improved. It can be improved.

[0018]

FIG. 1 is a vertical cross-sectional view of an essential part showing a structure for fixing a tile to a wall by a support for attachment according to the present invention.

In the figure, similar to the one described in the section of the prior art, the engaging grooves 61 for hanging the attachment support tool are formed at the upper and lower ends of the tiles 60 vertically arranged along the wall 62. ing. Then, this tile 60 is attached to the wall 6
As a member for constraining to the second side, a fixture 1 fixed to the wall 62, a first support 2 and a second support 3 connected to this fixture 1 are provided, and in this embodiment, a second support is provided. Ingredient 3
The holder 20 that is connected to and is immersed in the engaging groove 61 of the tile 60 is incorporated.

The fixture 1 has an L-shaped vertical cross-sectional shape, one side of which is fixed to the wall 62 and fixed by the anchor bolt 1a, and the other side projecting to the front is a bolt for passing the bolt. The hole 1b is opened.

FIG. 2 is an exploded perspective view of the first and second supporting members 2 and 3.

The first supporting member 2 is made of a metal plate having a rectangular plane shape, and a long hole 2a for inserting a bolt is opened at a substantially central portion in the longitudinal direction to fix the fixing member 1 in the hole.
The position in the width direction can be regulated by aligning with the bolt hole 1b. A holding piece 2b formed by bending a part of the material plate upward is provided on the front edge side of the first supporting tool 2, and a front side of the holding piece 2b is a notch 2c having a size equal to its width.

On the other hand, the second supporting member 3 is formed of a metal plate material, its front shape is substantially square, and the engaging piece 3a is provided by press punching slightly above the central portion. ing. The engagement piece 3a has a cross-sectional shape that slightly protrudes to the back surface side of the first support 2 and extends linearly downward, and an engagement gap 3b is formed between the engagement piece 3a and the back surface.

When connecting the first and second support tools 2 and 3, it is necessary to prevent rattling in the mutual width direction and vertical direction. For this reason, first, the size of the engagement gap 3b of the second support tool 3 is made substantially equal to the thickness of the holding piece 2b of the first support tool 2 so that a firm fit therebetween can be obtained. The width of the notch 2c in the width direction is set to be slightly larger than the width dimension of the second support tool 3, and the second support tool 3 is cut into the notch 2c.
When it is dropped inside, the fitting force promotes the generation of restraint force in the width direction.

The holder 20 is, as shown in FIG.
The fitting portion 20a to be inserted into the engaging groove 61 of the tile 60 is provided at one end, and the joining portion 20b externally fixed to the upper end side or the lower end side of the second support tool 3 is bent at the other end. It has a formed vertical cross-sectional shape. And this holder 2
0 adheres so as to line a part from the upper and lower end surfaces of the tile 60 to the back surface, thereby enabling the strength compensation of the tile 60.

The holder 20 is preliminarily assembled integrally with the second support 3 and only the joining work of the first and second supports 2 and 3 is performed on site. Further, the holder 20 and the second support 3 may be integrally formed as one member.

In the construction of the tile 60 using the first and second support tools 2 and 3, the anchor bolt 1a is first attached to the wall 62.
After fixing the fixture 1 by means of the first support 2, the first support 2 is joined to the fixture 1 by means of bolts 1c and nuts 1d. During this joining operation, the position in the front-rear direction from the wall 62 can be adjusted as long as the long hole 2a of the first support tool 2 is aligned with the bolt hole 1b. This adjustment is performed so that the holding piece 2b is located directly above the engagement groove 61 with respect to the tile 60 in the lower position already fixed to the wall 62.

Then, the second supporting member 3 is put on the first supporting member 2 from above as shown by the arrow in FIG.
Insert the holding piece 2b as if to hold it inside. At this time, the second support tool 3 penetrates the notch 2c of the first support tool 2 downward to be in the state shown in FIG. 1, and the holding piece 2b enters into the base portion of the engaging piece 3a and is joined thereto. In addition, although the holder 20 is not integrated in FIG. 2, it is assumed that the holder 20 is actually connected to the second support 3 as shown in FIG. In accordance with the connection and fixation of the first and second support tools 2 and 3 to the fixture 1, the fitting portion 20a of the holder 20 and the engagement groove 61 of the tile 60 are fitted to each other to join the tiles 60. It is restrained and fixed to the wall 62 side.

In such a connecting structure of the first and second support tools 2 and 3, the widthwise direction of the second support tool 3 is restricted by both ends of the notch 2c of the first support tool 2 and its displacement is restricted. It At the same time, the engaging piece 3 is moved around the holding piece 2b of the first support tool 2.
Since a is fitted, the movement of the second support tool 3 in the front-back direction is also restricted. Therefore, by simply aligning the second support tool 3 with the first support tool 2 and fitting the engagement piece 3a and the holding piece 2b, the support tools 2, 3 can be joined without rattling. it can.

FIG. 3 is another exploded view of the first and second support tools, and FIG. 4 is a longitudinal sectional view of the essential parts showing the joined state.

The first supporting member 2 has the same structure as that of the above-described example, and is different only in that a flat plate-shaped receiving portion 3c is formed at the extending end of the engaging piece 3a of the second supporting member 3. When the second support tool 3 is fastened to the first support tool 2 by the bolt 1c and the nut 1d, the receiving portion 3c overlaps the upper surface of the first support tool 2 as shown in FIG.

By including such a receiving portion 3c, the second supporting member 3 is held so that the posture of the second supporting member 3 is kept vertical with respect to the first supporting member 2, and the second supporting member 3 toward the wall 62 side or the front side is held. It is possible to regulate the variation of the posture of the support tool 3.

Further, the example shown in FIG. 5 makes it possible to more effectively suppress the variation in the posture of the second support tool 3, and the same second support tool 3 shown in FIGS. On the other hand, the first
Engagement slits 2d are cut out at both ends in the front direction of the notch 2c of the support tool. These engaging slits 2d are
It has an opening width that allows the second support tool 3 to be inserted therein, and plays a role of stabilizing the second support tool 3 in its standing posture with the holding piece 2b.

If such an engaging slit 2d is provided, the receiving portion 3c on the back surface of the second supporting member 3 covers the upper surface of the first supporting member 2 as shown in FIG. Is regulated. Then, the holding piece 2b and the engaging slit 2d
Thus, the front and back surfaces of the second support tool 3 are constrained, and the position in the front-rear direction is restricted. Therefore, the second support tool 3 is connected to the first support tool 2 in a more stable posture,
It is also possible to prevent backlash after construction.

FIG. 6 is a perspective view showing another structural example of the second support 3.

The second support tool 3 shown in FIG. 3 (a) is different from that shown in FIG. 2 in that a flange 3d is provided at the lower end thereof. The length of the flange 3d in the front-rear direction is set so that the flange 3d can be properly inserted into the engagement groove 61 of the tile 60.

The second support 3 shown in FIG. 2B has a flange 3d similar to that shown in FIG. 3A at one end in the vertical direction, and has an engaging piece 3e formed along the back surface at the other end. It was done. The engagement piece 3e is formed by bending the edge of the second support 3 over the entire length toward the back side in an L-shape.

Further, the second support shown in FIG. 7 (c) has the engaging pieces 3e shown in FIG. 3 (b) formed at both ends in the vertical direction.

Even when the tiles 60 are fixed by using these various second support tools 3, they can be indirectly bonded by using the holders 20 as shown in FIGS. 1 and 4.
It is also possible to insert the second support tool 3 into the engagement groove 61 of the tile 60 and directly connect the second support tool 3. FIG. 7 is a vertical cross-sectional view showing the main part of the latter example.

The example of FIG. 7 uses the second supporting member 3 shown in FIG. 6A, and has the same relationship as that shown in FIG. 2, that is, the engaging piece to the holding piece 2b. It is connected to the first support tool 2 by fitting 3a. The flange 3d at the lower end of the second support member 3 is dropped into the engaging groove 61 of the tile 60 arranged below, and the upper end side of the tile 60 arranged below is fitted into the engaging groove 61 of the flange 3d portion. Be detained. In addition, the tile 60 arranged on the upper side is set such that the lower end thereof is placed on the upper surface of the first support tool 2, and the engaging piece 3 a fitted to the holding piece 2 b is set in the engaging groove 61. ing.

As described above, even if the second support member 3 is directly fitted into the engaging groove 61, the flange 3d and the engaging piece 3a are fitted into the engaging groove 61 exactly. It is possible to fix the tile 60 to the wall 62 side.

Further, FIG. 8 shows the holder 20 already described above.
It is an example of construction using, and is one in which (b) or (c) of FIG. 6 is applied as the second support tool 3.

Similar to the example of FIGS. 1 and 4, the second supporting member 3 is integrated by using the joint portion 20b of the holding member 20,
The fitting portion 20 a of the holder 20 is the engagement groove 6 of the tile 60.
1 and holds the tile 60. The engagement piece 3e at the upper end of the second support tool 3 is inserted into the joint portion 20b of the holder 20 arranged at the upper side, and the flange 3d or the engagement piece 3e (shown by a chain line in the figure) at the lower end is arranged. The holder 20 is fitted in the joint portion 20b.

In this way, the flange 3d or the engaging piece 3e is
The tile 60 can be restrained and fixed to the second support 3 side through the holder 20 by fitting the joint portion 20b to the
It is possible to indirectly perform a fixed construction on the second support tool 3.

FIG. 9 is another example of the first and second support tools and is a longitudinal sectional view of the essential parts showing the joined state thereof, and FIG. 10 is an exploded perspective view thereof.

As in the previous example, the first support tool 4 has a long hole 4a aligned with the bolt hole 1b, and a holding piece 4b in which the front edge portion is bent vertically except for both ends in the width direction thereof. It is provided. A holding hole 4c having a rectangular opening cross section that is long in the width direction is formed in the bending portion at the upper end, which is the substantially central region when the holding piece 4b is viewed from the front side. Then, below the holding hole 4c, a restraining piece 4d protruding to the back side by press punching is provided. This restraint piece 4d
Has a longitudinal cross-sectional shape whose length in the width direction is shorter than that of the holding hole 4c and which rises in a parallel posture along the back surface of the holding piece 4b.

On the other hand, the second support member 5 is provided with the engaging piece 5a on the back surface side by press punching as in the previous example. The engagement piece 5a has a shape extending downward in parallel along the back surface of the second support tool, and its width is slightly shorter than the width of the holding hole 4c of the first support tool 4. Further, the opening width in the front-rear direction of the holding hole 4c of the first support tool 4 is set to such an extent that the engaging piece 5a is fitted tightly, and the restraining piece 4d and the holding piece 4 are provided.
The size of the gap with the back surface of b is set similarly.

Also in this example, as shown in FIG. 1, the first supporting member 4 is connected to the fixing member 1 which is previously fixed to the wall 62, and the upper end and the lower end of the second supporting member 5 are of the tile 60, respectively. Construction is carried out by immersing in the engagement groove 61. In this case, as described above, the construction may be such that the tile 60 is indirectly connected to the second support 5 side via the holder 20.

If the second support 5 is covered from above on the first support 4 and the engaging piece 5a of the second support 5 is inserted from the holding hole 4c, as shown in FIG. Engagement piece 5
The lower end portion of a fits into the gap between the restraining piece 4d and the back surface of the holding piece 4b, and is finally joined.

Since the engaging piece 5a provided on the back surface of the second support 5 is fitted into the holding hole 4c of the first supporting tool 4, the engaging piece 5a moves in the width direction within the holding hole 4c. Is regulated. Further, the engaging piece 5a is held by the restraining piece 4d and the holding piece 4b.
Since it is integrated on the side, movement in the front-back direction is also restricted. Since the upper end of the engagement piece 5a is constrained by the holding hole 4c and the lower end thereof is constrained by the restraint piece 4d, tilting and deformation in the front-rear direction are also restricted.

Therefore, the second support 5 is replaced by the first support 4
The engaging piece 5a from the holding hole 4c to the restraining piece 4a.
By simply inserting it toward d, these support members 4 and 5 can be connected without rattling.

FIGS. 11 and 12 show a modification of the example shown in FIGS. 9 and 10.

The second support 5 has the same structure as that of the previous example, and the first support 4 is provided with a restraining piece 4e formed by bending the lower end of the holding piece 4b to the back side. different. The restraining piece 4e is provided on the entire length of the holding piece 4b in the width direction, and has a cross-sectional shape capable of fitting the engaging piece 5a of the second support 5 as shown in FIG.

Also in this example, the second support 5 can be stably connected to the first support 4, and the engagement of the second support 5 is different from those of the examples of FIGS. 9 and 10. Piece 5
Since the lower end portion of a is held by the restraining piece 4e over the entire length in the width direction, it is possible to perform the work with a more stable posture.

FIG. 13 is a longitudinal sectional view of a main part showing a joined state of support tools showing still another example, and FIG. 14 is an exploded perspective view thereof. Note that, also in this example, for example, indirect fixing using the holder 20 shown in FIG. 1 and direct fixing of the tile 60 by the second supporting tool can be performed, and the structure for holding the tile 60 is first. It is exactly the same as the example.

The first supporting member 6 is almost the same as that of the example of FIGS. 1 and 2, and the long hole 6a is opened and the holding piece 6b is vertically raised on the front edge side, and the front is formed as a notch 6c. It was done.

The second supporting member 7 is a base 7a placed on the upper surface of the first supporting member 6, and two upper flanges 7 which are the front edges of the base 7a and are vertically raised from both end regions in the width direction.
b, 7c and a lower flange 7d bent vertically downward between the flanges 7b, 7c.

A holding hole 7e located at the rear of the lower flange 7d is formed in the base 7a in the width direction. This holding hole 7
e has an opening shape into which the holding piece 6a of the first support tool 6 is fitted tightly. Also, the width dimension of the lower flange 7d is
The width is set to be slightly smaller than the width of the notch 6c of the first support tool 6.

When the second support member 7 is covered on the first support member 6 and the holding piece 6b is inserted into the holding hole 7e, the base 7a is moved to the first support member 6 as shown in FIG. At the same time when it is placed on the upper surface, the holding piece 6b is fitted into the holding hole 7e, and the lower flange 7d is also dropped into the notch 6c. By fitting the holding piece 6b and the holding hole 7e, the first and second support tools 6, 7 regulate the positions in the front-rear direction and at the same time, constrain each other in the width direction. The position in the width direction can also be regulated by the lower flange 7d that has fallen into the notch 6c.

Further, in this example, since the base 7a is placed on the upper surface of the first supporting member 6, the stability due to the planar support is improved, and the base 7a itself is restrained by the holding piece 6b through the holding hole 7e. Therefore, rattling is prevented more effectively.

In the above example, the tile is used as the wall material, but the same support structure can be applied to various kinds of wall materials for building materials which are used instead of the tile.

[0062]

According to the present invention, even if there are two support tools, a first tool and a second tool, that connect a fixture fixed to a wall and a wall material, it is possible to use the second restraint joint structure between the two. Support is retained without undesired tilting with respect to the wall.
For this reason, there is no backlash or displacement after the construction, and the work such as finishing adjustment is unnecessary, and the construction of a good finished surface is possible.

Further, since the work after connecting and fixing the first supporting member to the fixing member only needs to mechanically connect the second supporting member to the first supporting member while holding the wall material, bolts and the like can be attached. The work is significantly easier than the construction used.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of a main part showing a tile holding structure according to a support of the present invention.

FIG. 2 is an exploded perspective view of first and second support tools of FIG.

FIG. 3 is an exploded perspective view of first and second support tools showing an example in which a receiving portion is provided on the second support tool.

FIG. 4 is a vertical cross-sectional view of a main part showing a joint structure by the support tool of the example of FIG.

5 is an exploded perspective view of first and second support tools showing an example in which an engaging slit is provided in the first support tool in the example of FIG. 3. FIG.

6A and 6B are perspective views showing another configuration example of the second support tool, FIG. 6A is an example in which a flange is provided at one end in the vertical direction, and FIG. An example in which a bent engagement piece is provided at the other end, (c) of the figure shows an example in which engagement pieces are provided at both ends in the vertical direction.

FIG. 7 is an example of construction using the second support shown in FIG. 6 (a), which is a longitudinal section of the main part when the second support is fitted into the engagement groove of the tile and directly fixed. It is a side view.

FIG. 8 is a vertical cross-sectional view of a main part when a tile is indirectly fixed through a holder, which is an example of construction using the second support tool shown in FIG. 6B or 6C. Is.

FIG. 9 is a vertical cross-sectional view of a main part showing a joint structure according to another example of the first and second supports.

FIG. 10 is an exploded perspective view of the first and second support tools of FIG. 9.

FIG. 11 is a vertical cross-sectional view of a main part showing still another example, which is a joint structure using first and second support tools.

12 is an exploded perspective view of the first and second support tools of FIG. 12. FIG.

FIG. 13 is a vertical cross-sectional view of a main part, which is still another example of the first and second supports, showing the joint structure thereof.

FIG. 14 is an exploded perspective view of the first and second support tools of FIG.

FIG. 15 is a vertical cross-sectional view of a main part showing a conventional example.

[Explanation of symbols]

 1 Fixing Tool 2 First Support Tool 2a Long Hole 2b Holding Piece 3 Second Support Tool 3a Engaging Piece 4 First Supporting Tool 4a Long Hole 4b Holding Piece 4c Holding Hole 4d Resting Piece 5 Second Supporting Tool 5a Engaging Piece 6 1st support tool 6a long hole 6b holding piece 7 2nd support tool 7a base 7b upper flange 7c upper flange 7d lower flange 7e holding hole 20 holding tool 20a fitting part 20b joint part 60 tile 61 engaging groove 62 wall

Claims (4)

[Claims] 1. A support structure for mounting a wall material, in which an engaging groove is cut in a width direction on an upper end surface and / or a lower end surface, to the wall of a building through a fixture protruding forward. A first support tool connected and fixed to the fixture and a second support tool connected to the first support tool, wherein the second support tool is in a posture parallel to the wall and the wall. The engaging groove of the material can be directly or indirectly immersible, and the first support tool and the second support tool can be attached / detached by a restraining joint structure for restricting a posture change of the second support tool with respect to the wall. A support tool for dry construction of wall materials that are connected as much as possible. 2. The restraint joining structure comprises a holding piece raised to a front edge side of the first support tool and an engagement piece provided on a back surface side of the second support tool and fitted to the holding piece. The support for dry-type construction of a wall material according to claim 1, which is configured. 3. The restraint joining structure comprises: a restraint piece provided on a back surface side of a holding piece having a front edge side of the first support tool bent downward, and a restraint piece having a gap between the restraint joining structure and the back surface of the holding piece; A holding hole that is located above the piece and opens, and an engagement piece that is provided on the back surface side of the second support and that fits into the gap of the restraining piece portion through the holding hole. Item 1. A support tool for dry construction of a wall material according to item 1. 4. The restraint joint structure is seated around a holding piece raised to the front edge side of the first support tool and a part of the second support tool around the holding piece of the first support tool. The support for dry-type construction of a wall material according to claim 1, wherein the support is configured by a base and a holding hole cut into the base and into which the holding piece fits.