JP7314468B2 - Walls, wall structures and wooden blocks - Google Patents

Description

Article 30, Paragraph 2 of the Patent Act applies July 20, 2019 Published by Architectural Institute of Japan Published in "2019 Annual Meeting (Hokuriku) Summaries of Academic Lectures and Summary of Architectural Design Presentations (DVD)" September 3, 2019 Published at "2019 Annual Meeting of Architectural Institute of Japan (Hokuriku)" hosted by Architectural Institute of Japan on September 3, 2019

The present invention relates to walls, wall structures and wooden blocks.

A technique for constructing a wall by stacking blocks vertically and horizontally is known.

For example, Patent Literature 1 discloses a technique related to a seismic reinforcement method for an existing building by concrete block masonry.

Further, for example, Patent Literature 2 discloses a technique related to a wall structure including a frame composed of columns and horizontal members, and a wall body formed by stacking wooden blocks within the frame. In this prior art, the stacking surfaces of the wooden blocks are slanted left and right from the center.

Japanese Patent Publication No. 57-12832 JP 2018-35592 A

Patent Literature 1 is a technique related to a wall made by stacking concrete blocks. Concrete blocks are heavy, so stacking them takes time and effort.

Paragraph [0044] of Patent Literature 2 discloses forming a wall by appropriately using an adhesive or the like when stacking wooden blocks in a configuration in which neither vertical reinforcement nor dowel reinforcement is used. Since wooden blocks are lighter than concrete blocks, the work of stacking them is reduced. However, when the wooden blocks are stacked and glued together, they need to be positioned.

SUMMARY OF THE INVENTION In view of the above facts, it is an object of the present invention to position a wooden block when the wooden blocks are stacked vertically and horizontally and glued together with an adhesive.

A first mode is a wall body constructed by stacking wooden blocks vertically and horizontally and bonding the wooden blocks with an adhesive, wherein recesses for positioning are formed in adjacent surfaces of one of the adjacent wooden blocks and the other of the adjacent wooden blocks, and positioning members are inserted into the recesses.

In the wall of the first aspect, the wooden blocks are positioned by inserting the positioning members into the positioning recesses formed in the adjacent surfaces of the adjacent wooden blocks and stacking the wooden blocks vertically and horizontally. Therefore, the positional deviation of the wooden blocks when stacking the wooden blocks, particularly the positional deviation in the out-of-plane direction of the wall, is prevented or suppressed.

A second aspect is the wall according to the first aspect, wherein the recess is a long groove along the in-plane direction of the wall, and the positioning member is an elongated member.

In the second aspect of the wall body, the concave portion is a long groove and the positioning member is an elongated member, so that the wooden blocks are prevented from rotating when the wooden blocks are vertically and horizontally stacked without forming a plurality of concave portions.

A third aspect is the wall according to the second aspect, wherein the wooden blocks are stacked vertically and horizontally in a zigzag pattern in a front view, and the long groove has a first groove formed in the center of the adjacent surface of one of the adjacent wooden blocks in the horizontal direction or the vertical direction, and a second groove formed at both ends in the horizontal direction or the vertical direction at the same position as the first groove on the adjacent surface of the other adjacent wooden block.

In the wall body of the third mode, a first groove is formed in the horizontal or vertical center portion of the adjacent surface of one of the adjacent wooden blocks, and a second groove is formed at both horizontal or vertical ends of the adjacent surface of the other wooden block at the same position as the first groove, so that the three adjacent wooden blocks can be positioned by one elongated member.

A fourth aspect is a wall constructed by stacking wooden blocks vertically and horizontally and bonding the wooden blocks with an adhesive, the wall comprising a positioning recess formed on the adjacent surface of one of the adjacent wooden blocks, and a protrusion formed on the adjacent surface of the other adjacent wooden block and inserted into the recess.

In the wooden blocks of the fourth aspect, the wooden blocks are positioned by inserting projections formed on the other adjacent surface into positioning recesses formed on the adjacent surface of one of the adjacent wooden blocks and stacking the wooden blocks vertically and horizontally. Therefore, the positional deviation of the wooden blocks when stacking the wooden blocks, particularly the positional deviation in the out-of-plane direction of the wall, is prevented or suppressed.

A fifth aspect is the wall according to any one of the first aspect to the fourth aspect, wherein, in a front view, the wooden block has an inclined portion formed on one surface and the other surface facing each other so that the thickness decreases from both sides in the left-right direction or the up-down direction toward the center.

In the wall of the fifth aspect, the inclined portions of the wooden blocks stacked vertically and horizontally engage with each other, so that the wooden blocks can be arranged at appropriate positions, thereby improving workability.

A sixth aspect is a wall structure in which the wall according to the fifth aspect is provided in a framework composed of columns and horizontal members.

In the wall structure of the sixth aspect, the horizontal force input to the upper corner of the wall is transmitted to the lower corner by the compressive force acting on the slope of the wooden block, forming a compression strut (compression bundle) in the diagonal direction of the wall. The compression struts effectively suppress the deformation of the frame.

A seventh aspect is a wooden block that is stacked vertically and horizontally and joined with an adhesive to construct a wall, and is a wooden block that has a positioning recess formed on an adjacent surface into which a positioning member is inserted.

In the wooden block of the seventh aspect, the wooden block is positioned by inserting the positioning member into the positioning concave portion formed in the adjacent surface and stacking the wooden block vertically and horizontally. Therefore, the positional deviation of the wooden blocks when stacking the wooden blocks, particularly the positional deviation in the out-of-plane direction of the wall, is prevented or suppressed.

An eighth aspect is a wooden block that is stacked vertically and horizontally and joined with an adhesive to construct a wall, and is provided with a positioning concave portion formed on one of the opposing adjacent surfaces and a convex portion that is formed on the other opposing adjacent surface and is inserted into the concave portion of the adjacent wooden block.

In the wooden block of the eighth aspect, the wooden block is positioned by inserting the convex portion of the adjacent wooden block into the positioning concave portion formed on the adjacent surface and stacking the wooden blocks vertically and horizontally. Therefore, the positional deviation of the wooden blocks when stacking the wooden blocks, particularly the positional deviation in the out-of-plane direction of the wall, is prevented or suppressed.

A ninth aspect is the wooden block according to the seventh aspect or the eighth aspect, in which, in a front view, inclined portions are formed on one surface and the other surface facing each other so that the thickness decreases from both sides in the left-right direction or the up-down direction toward the center.

In the wooden block of the ninth aspect, the inclined portions of the wooden blocks stacked vertically and horizontally engage with each other, so that the wooden blocks can be arranged at appropriate positions, thereby improving workability.

Advantageous Effects of Invention According to the present invention, it is possible to position wooden blocks when stacking wooden blocks vertically and horizontally and bonding them with an adhesive.

It is a front view of a frame and a wall body to which the wall structure of this embodiment is applied. 2 is an enlarged front view of FIG. 1; FIG. It is a perspective view of the wooden block of this embodiment. FIG. 4 is a perspective view of the wall during construction;

<Embodiment>
An embodiment of the present invention will be described. Note that the two orthogonal horizontal directions are the X direction and the Y direction, which are indicated by arrows X and Y, respectively. The vertical direction perpendicular to the X and Y directions is defined as the Z direction and indicated by an arrow Z. As shown in FIG. The Y direction is the out-of-plane direction of a wall body, which will be described later. Viewing from the out-of-plane direction is the front view, and the left-right direction in the front view is the X direction. When describing the wooden blocks individually, the direction will be described in the state of stacking them to form a wall. The out-of-plane direction (Y direction) of the wall is defined as the "width direction" of the wooden block.

[Wall body and wall structure]
First, the wall body and wall structure will be described.

As shown in FIG. 1, the wall structure 10 includes a frame 20 and a wall 50 in which wooden blocks 100 are stacked vertically and horizontally within the frame 20 and joined with an adhesive S (see FIG. 4).

The frame 20 includes left and right pillars 22 in a front view, and upper and lower beams 24 as an example of horizontal members. Note that the horizontal members that constitute the frame 20 may be, for example, slabs other than the beams 24 . Moreover, although the frame 20 of this embodiment is made of reinforced concrete, it is not limited to this. The frame 20 may be made of, for example, steel reinforced concrete, steel frame, or wood, other than reinforced concrete.

The wall body 50 of the present embodiment is constructed by stacking wooden blocks 100 vertically and horizontally in a staggered manner with respect to the vertical direction and joining them with an adhesive S (see FIG. 4).

In this embodiment, the lower beam 24 and the wall 50 of the frame 20 are joined with an adhesive S (see FIG. 4). In addition, gaps between the upper beam 24 and the left and right pillars 22 of the frame 20 and the wall 50 are filled with a filler J such as mortar and joined together. A specific construction method of the wooden block 100 and the wall body 50 will be described later.

[Wooden block]
Next, the wooden block 100 will be explained.

The wooden block 100 shown in FIG. 3 is composed of cross-laminated boards obtained by laminating and bonding sawn boards so that their fiber directions are perpendicular to each other. The wooden block 100 may be made of a wooden material other than the cross-laminated board, for example, a laminated veneer material obtained by laminating and bonding veneers with their fiber directions aligned, or solid wood.

The wooden block 100 is made up of a top surface 112 , a bottom surface 114 , a front surface 122 , a rear surface 124 , a first side surface 132 and a second side surface 134 .

A front face 122 and a back face 124 of the wooden block 100 facing in the Y direction are parallel to each other. Also, the left and right first side surfaces 132 and second side surfaces 134 of the wooden block 100 facing each other in the X direction are parallel to each other.

Top 112 and bottom 114 surfaces of wood block 100 are stacking surfaces in constructing wall 50 (see FIGS. 1, 2 and 4). In addition, on the upper surface 112 and the lower surface 114 of the wooden block 100, an upper inclined portion 150U and a lower inclined portion 150L are formed, respectively, the thickness of which decreases in the vertical direction from both ends in the horizontal direction toward the center when viewed from the front, so that the wooden block 100 has a butterfly shape when viewed from the front.

The upper inclined portion 150U of the upper surface 112 is V-shaped and is composed of a first upper inclined surface 152UA and a second upper inclined surface 152UB that slope downward from both ends in the left-right direction toward the central portion. The lower sloping portion 150L of the lower surface 114 is composed of a first lower sloping surface 152LA and a second lower sloping surface 152LB that slope upward from both ends in the left-right direction toward the center, forming an inverted V shape.

Note that the wooden block 100 of the present embodiment is bilaterally symmetrical and vertically symmetrical when viewed from the front.

The upper surface 112 and the lower surface 114 and the first side surface 132 and the second side surface 134 of the wooden block 100 are bonding surfaces on which the adjacent wooden blocks 100 are adhesively bonded with the adhesive S. As shown in FIG.

Grooves 180A and 180B in which the adhesive S (see FIG. 4) is accumulated are formed on the outside (see also FIG. 4) of the upper surface 112 of the wooden block 100 in the width direction (the Y direction, the out-of-plane direction of the wall 50).

Groove portions 180A and 180B, which are examples of recesses in which adhesive S (see FIG. 4) is accumulated, are formed in parallel along respective laterally outer side portions 113A and 113B of upper surface 112 . The depths of the grooves 180A and 180B are constant, and the groove bottom surfaces 182A and 182B are parallel to the first upper inclined surface 152UA and the second upper inclined surface 152UB and have a V shape.

The wooden blocks 100 also have a positioning mechanism 200 for positioning when stacking them. The positioning mechanism 200 has a first long groove 210, second long grooves 212A and 212B, and a piece of wood member 220. As shown in FIG.

The first long groove 210 is formed so as to extend in the left-right direction at the center portion in the width direction (Y direction) and the center portion in the left-right direction (X direction) of the upper surface 112 of the wooden block 100 . The second long grooves 212A and 212B are formed so as to extend in the horizontal direction at the central portion in the width direction (Y direction) of the lower surface 114 of the wooden block 100 and at both end portions in the horizontal direction. The bottom surface 211 of the first long groove 210 and the bottom surfaces 213A, 213B of the second long grooves 212A, 212B extend horizontally. A rectangular parallelepiped wooden piece member 220 as an example of a positioning member is inserted into the first long groove 210 and the second long grooves 212A and 212B.

Tapes 300A and 300B are attached along the vertical direction to both ends of the first side surface 132 of the wooden block 100 in the out-of-plane direction. The tapes 300A and 300B of this embodiment have a thickness of 0.8 mm to 1.0 mm, but are not limited to this.

[Method of constructing the wall]
Next, an example of a method for constructing the wall 50 will be described.

As shown in FIGS. 1, 2, and 4, wooden blocks 100 are stacked vertically and horizontally in a zigzag manner in the frame 20, and the wooden blocks 100 are adhesively joined together with an adhesive S (see FIG. 4) to construct the wall 50. The lower inclined portion 150L of the upper wooden block 100 engages with the upper inclined portion 150U of the lower wooden block 100. As shown in FIG.

As shown in FIG. 4, the adhesive S is applied to the upper surface 112 of the wooden block 100 between the grooves 180A and 180B. Also, an adhesive S is applied between the tape 300A and the tape 300B attached to the first side surface 132 of the wooden block 100 .

The wooden blocks 100 are positioned and stacked by inserting the wooden piece members 220 into the first long grooves 210 of the upper surface 112 of the wooden block 100 and inserting the wooden piece members 220 into the second long grooves 212A and 212B (see FIG. 3) of the lower surface 114 of the upper wooden block 100 to be stacked on the wooden block 100.

The adhesive S applied to the upper surface 112 joins the upper surface 112 and the lower surface 114 of the vertically adjacent wooden blocks 100 (see also FIG. 2).

More specifically, as shown in FIG. 2, the first upper inclined surface 152UA of the upper inclined portion 150U of the upper surface 112 of the lower left wooden block 100 is joined to the second lower inclined surface 152LB of the lower inclined portion 150L of the lower surface 114 of the upper wooden block 100. Similarly, the first lower inclined surface 152LA of the lower inclined portion 150L of the lower surface 114 of the upper wooden block 100 is joined to the second upper inclined surface 152UB of the upper inclined portion 150U of the upper surface 112 of the lower right wooden block 100.

4 accumulates in the grooves 180A and 180B formed in the upper surface 112 when the wooden block 100 is pressed. Therefore, the protrusion of the adhesive S in the out-of-plane direction (Y direction) of the wall body 50, that is, the protrusion from the joint of the wall body 50 is prevented or suppressed.

Further, as shown in FIG. 4, the first side surface 132 of one wooden block 100 and the second side surface 134 (see FIG. 2) of the other wooden block 100, which are laterally adjacent to each other, are joined by the adhesive S applied between the tapes 300A and 300B applied to the first side surface 132 of the wooden block 100 along the vertical direction.

The tapes 300A and 300B attached to the first side surface 132 of the wooden block 100 prevent or suppress the protrusion of the adhesive S in the out-of-plane direction (Y direction) of the wall 50, that is, the protrusion from the joint of the wall 50. In addition, filling of the adhesive S is checked by checking that the adhesive S protrudes upward.

As shown in FIGS. 1 and 4, the wooden block 100 forming the lower end of the wall 50 has a flat lower surface and is adhesively bonded to the lower beam 24 with an adhesive S. As shown in FIG.

As shown in FIG. 1, the wooden block 100 forming the upper end of the wall 50 has a flat upper surface. Some of the wooden blocks 100 forming the left and right ends of the wall 50 have a lateral trapezoidal shape when viewed from the front. Then, as described above, a filler J such as mortar is filled in the gaps between the wall 50, which is made by stacking the wooden blocks 100 vertically and horizontally and joined with the adhesive S, and the pillars 22 and the upper beams 24 constituting the frame 20, and joined.

<Action and effect>
Next, the operation and effects of this embodiment will be described.

When the wooden blocks 100 are vertically and horizontally stacked and the wooden blocks 100 are joined together with the adhesive S, excess adhesive S enters and accumulates in grooves 180A and 180B formed on the outer side in the width direction of the upper surface 112.例文帳に追加Therefore, the protrusion of the adhesive S from the joints of the wall 50 is prevented or suppressed. In addition, since excess adhesive S enters and accumulates in the grooves 180A and 180B, the thickness of the adhesive S becomes thin and uniform, thereby improving the adhesive strength.

In addition, by forming the grooves 180A and 180B as the recesses in which the adhesive S is accumulated, the protrusion of the adhesive S can be prevented or suppressed more effectively than when the recesses are holes.

Furthermore, the adhesive S is prevented or suppressed from squeezing out from the joints of the wall 50 by the tapes 300A and 300B applied along the vertical direction on the width direction outside of the first side surface 132 of the wooden block 100 . In addition, since the adhesive S protrudes upward, it is possible to easily check whether the adhesive S is sufficiently filled in the gaps between the wooden blocks 100 adjacent to each other on the left and right.

The wooden block 100 is positioned by inserting the wooden piece member 220 into the first long groove 210 formed in the upper surface 112 of the wooden block 100 and fitting the wooden piece member 220 into the second long grooves 212A and 212B formed in the lower surface of the wooden block 100 stacked thereon. Therefore, the positional deviation of the wooden blocks 100 when the wooden blocks 100 are stacked, particularly the positional deviation in the out-of-plane direction (Y direction) of the wall body 50 is prevented or suppressed.

In the present embodiment, the first long groove 210 and the second long grooves 212A and 212B are long grooves, and the wooden piece member 220 is a rectangular parallelepiped long member, so that the wooden block 100 can be prevented from rotating with the single wooden piece member 220.

In addition, by forming the first long groove 210 of the lower wooden block 100 and the second long grooves 212A, 212B of the left and right wooden blocks 100 of the upper side at the same position, it is possible to position three adjacent wooden blocks 100 by one piece of wood member 220.

The wooden block 100 of the present embodiment is formed with an upper inclined portion 150U and a lower inclined portion 150L, which are inclined so that the thickness decreases from both sides in the left-right direction toward the center, on the upper surface 112 and the lower surface 114, forming a butterfly shape. Therefore, the stacking direction of the wooden blocks 100 can be easily known. Also, a separate member for filling the gaps formed between the wooden blocks 100 is not required. Therefore, workability is improved when stacking wooden blocks.

In addition, by engaging the lower inclined portion 150L of the upper wooden block 100 with the upper inclined portion 150U of the lower wooden block 100 stacked vertically and horizontally, the wooden block 100 can be arranged at an appropriate position, thereby improving workability.

Furthermore, since the wooden block 100 is lighter than the concrete block, the work of stacking is reduced.

In addition, by engaging the lower inclined portion 150L of the upper wooden block 100 with the upper inclined portion 150U of the lower wooden block 100 stacked in the vertical and horizontal directions, side slippage is prevented, and the seismic force is efficiently transmitted.

Further, the horizontal force input to the upper corner of the wall 50 is transmitted to the lower corner by the compressive force acting on the upper inclined portion 150U and the lower inclined portion 150L of the wooden block 100, forming a compression strut (compressed bundle) in the diagonal direction of the wall 50. This compression strut effectively suppresses deformation of the frame 20 .

When the force is transmitted in the horizontal direction by the upper inclined portion 150U and the lower inclined portion 150L of the wooden block 100, the force is transmitted through the tapes 300A and 300B, so that the force can be transmitted more effectively than the adhesive S.

<Others>
It should be noted that the present invention is not limited to the above embodiments.

For example, in the above-described embodiment, the grooves 180A and 180B in which the adhesive S is accumulated are formed in the upper surface 112 of the wooden block 100, but the present invention is not limited to this. The grooves 180A and 180B may be formed on the lower surface 114 of the wooden block 100, or may be formed on both the upper surface 112 and the lower surface 114. FIG.

Further, for example, in the above-described embodiment, two grooves 180A and 180B in which the adhesive S is accumulated are formed along the widthwise outer sides 113A and 113B of the upper surface 112 of the wooden block 100, but the present invention is not limited to this. Only one of the groove portion 180A and the groove portion 180B may be formed, or three or more groove portions may be formed.

Further, for example, in the above-described embodiment, examples of the recesses in which the adhesive S is accumulated are the grooves 180A and 180B, but the present invention is not limited to this. The recesses in which the adhesive S is accumulated may be, for example, a plurality of holes formed side by side at intervals along the side portions 113A and 113B.

Further, in the above-described embodiment, the upper surface 112 of the wooden block 100 is formed with the grooves 180A and 180B in which the adhesive S is accumulated, but the present invention is not limited to this. The first side surface 132 or the second side surface 134 of the wooden block 100 may be formed with a recess in which the adhesive S is accumulated.

Further, for example, in the above-described embodiment, the first long groove 210, the second long grooves 212A and 212B, and the wooden piece member 220 constitute the positioning mechanism 200, but the positioning mechanism 200 is not limited to this. A configuration in which positioning recesses are formed in the upper surface 112 and the lower surface 114 of the wooden block 100 and the positioning members are inserted into the recesses is sufficient.

Also, for example, the position of the recess for positioning may be formed anywhere on the upper surface 112 and the lower surface 114 . In addition, the recess for positioning may have any shape. For example, the positioning recess may be one or more holes. Further, the positioning member may be of any shape, for example, a rod-shaped member installed with its axial direction extending vertically. Also, the positioning member may be made of a material other than wood, such as metal.

In short, the positioning mechanism only needs to have positioning recesses into which the positioning members are inserted, on one surface and the other surface of the wooden block facing each other.

Further, the positioning mechanism may have a configuration in which a recess for positioning is formed on the adjacent surface of one of the adjacent wooden blocks, and a protrusion that is inserted into the recess for positioning is formed on the adjacent surface of the other adjacent wooden block.

In addition, the concave portion in which the adhesive S is accumulated and the concave portion for positioning may be shared. For example, the first long groove 210 for positioning may be formed so as to overlap the central portion of one groove portion 180A of the upper surface 112 of the wooden block 100 of the above embodiment.

Moreover, in the above embodiment, the tapes 300A and 300B are attached along the vertical direction to both ends of the first side surface 132 of the wooden block 100 in the width direction (Y direction), but the tapes 300A and 300B are not limited to this. Tapes 300A, 300B may be applied to the second side 134 of the wooden block 100. FIG. Tapes 300A, 300B may be applied to the top surface 112 or the bottom surface 114 of the wooden block 100 . Alternatively, only one of tape 300A and tape 300B may be applied.

In the above-described embodiment, the wooden block 100 has a butterfly shape in which the upper inclined portion 150U and the lower inclined portion 150L are formed in the upper surface 112 and the lower surface 114 in a front view, the thickness of which decreases in the vertical direction from both ends in the horizontal direction toward the central portion, but the present invention is not limited thereto.

For example, by providing flat surfaces at corners and internal corners of butterfly-shaped wooden blocks, ease of stacking and stacking accuracy may be improved. Further, the butterfly-shaped wooden block of the above embodiment may be rotated by 90° so as to be narrower in the left-right direction.

Further, for example, the wooden block may have a shape other than a butterfly shape, such as a V shape, an inverted V shape, an N shape, a hexagonal shape, a rhombus shape, an octagonal shape, a parallelogram shape, a trapezoidal shape, a square shape, a rectangular shape, or the like when viewed from the front. Also, the wooden block may be left-right asymmetrical or top-bottom asymmetrical.

Further, when the wooden block has a shape having inclined portions such as the upper inclined portion 150U and the lower inclined portion 150L in the above embodiment, the inclined portions may be formed with curved surfaces.

Further, for example, an opening may be provided in a part of the wall 50 for passage, windows, piping, wiring, and the like.

Furthermore, various aspects can be implemented without departing from the gist of the present invention.

REFERENCE SIGNS LIST 10 wall structure 20 frame 50 wall body 100 wooden block 112 upper surface (an example of an adhesive surface, an example of an adjacent surface)
114 lower surface (an example of an adhesive surface, an example of an adjacent surface)
132 first side (an example of an adhesive surface)
134 second side (an example of an adhesive surface)
150L lower slope (an example of slope)
150U upper inclined portion (an example of an inclined portion)
180A Groove part (an example of a concave part where the adhesive is accumulated)
180B Groove part (an example of a concave part where the adhesive is accumulated)
200 positioning mechanism 210 first long groove (an example of a recess for positioning)
212A second long groove (an example of a recess for positioning)
212B second long groove (an example of a recess for positioning)
220 wood piece member (an example of a positioning member)
300A tape 300B tape
S Adhesive

Claims (3)

A wall constructed by stacking wooden blocks in a zigzag pattern vertically and horizontally, and bonding the adjacent inclined portions and the side surfaces with an adhesive, wherein the inclined portions are formed on the upper and lower surfaces so that the thickness in the vertical direction decreases from the left and right sides toward the center.
A first long groove whose longitudinal direction is the left-right direction is formed in the central portion of one of the upper surface and the lower surface of the wooden block,
A second long groove having a left-right direction as a longitudinal direction is formed at a corner between the other of the upper surface and the lower surface of the wooden block and the left and right side surfaces,
The first long groove of one of the vertically adjacent wooden blocks and the second long groove of the other vertically adjacent wooden block overlap vertically, and an elongated member is inserted into the first long groove and the second long groove to position and construct.
wall. A wall structure in which the wall body according to claim 1 is provided in a framework composed of columns and horizontal members. A wooden block is formed on the upper surface and the lower surface so that the thickness in the vertical direction becomes smaller from the left and right sides toward the center, and the blocks are stacked vertically and horizontally in a staggered manner and the adjacent upper and lower inclined parts and the adjacent side surfaces are bonded with an adhesive to construct a wall.
A first long groove whose longitudinal direction is the left-right direction in which the long member for positioning is inserted is formed in the central portion of one of the upper surface and the lower surface,
A second long groove whose longitudinal direction is the left-right direction in which the long member inserted in the first long groove is inserted is formed at the corner between the other of the upper surface and the lower surface and the left and right side surfaces.
wooden block.