JPH0485401A - Composite wood brick - Google Patents

Abstract

PURPOSE:To improve workability, prevent the occurrence of cracks and provide a smooth pedestrian way by fitting wood bricks into a plurality of holding sections provided in a frame and connecting a plurality of frames by means of connecting parts provided on each of the frames. CONSTITUTION:An overhang 14 projects slightly from the vicinity of each upper surface of four sides of a wood brick 5. Tapered surfaces 15 are provided on the upper surface of the brick 5 along the edges thereof. A frame 1 is then placed with its face upward and the bricks 5 are fitted into holding sections 2 one by one. Thereafter the frame 1 is turned over and a screw 16 is inserted into a screw hole from the rear side of a mount base 6 to screw the brick 5 on the base 6. In order to construct a floor, a connecting projection 12 and a connecting hole 13 on the outer wall 4 of one of the adjoining frames 1 are engaged with those of the other frame 1 respectively to connect these frames 1.

Description

Detailed Description of the Invention [Industrial Field of Application] The present invention enables paving of these bricks to be installed in outdoor areas such as sidewalks and parking lots, or indoor areas that require installation. Or it relates to composite real bricks for constructing a floor surface.

[Prior Art] A technique for constructing a wooden brick pavement by holding individual wooden bricks in a laying frame to form a set of bricks and laying these bricks was proposed by the present inventor.

The above-mentioned laying frame generally has a holding section in the frame body, and a section wall that partitions the holding section has a diagonally downward elastic collar piece, which is attached to the holding section using real bricks. The wooden brick pavement is then laid in a predetermined area to complete the wooden brick pavement.
number, etc.).

[Problem to be solved by the invention] The conventional brick laying frame has the above-mentioned configuration,
Speedy laying of wooden bricks, flat laying of real bricks,
It is possible to achieve the intended purpose, such as being able to absorb the expansion and contraction of the brick due to changes in moisture status.

Here, we will go beyond the construction framework and construct composite wood bricks incorporating real bricks so that they can be used not only outdoors but also indoors and outdoors. The purpose of the present invention is to develop a device that has various excellent functions, such as being able to form a walking surface that does not require a single walking surface, and being able to connect in any direction.

[Means for Solving the Problems] The gist of the configuration of the present invention is to configure a quadrilateral frame when viewed from above, and configure a plurality of holding sections for holding real bricks in the frame. Each of the holding compartments is provided with a partition wall that tightly holds the peripheral side of the real bricks to be held, and a fixing means for fixing the wooden bricks to be held in the holding compartment, and furthermore, the four sides of the frame are The connecting female part and the connecting female part of the structure that can be connected to each other are arranged so that they are in a mutually symmetrical positional relationship on each side, and on the other hand, a wooden brick that can be closely held on the peripheral side; an overhang extending toward the upper end of the partition wall and upward from the upper end is formed on the upper peripheral edge of the wooden brick; This is a composite real brick in which the upper surface near the periphery of the brick is inclined downward toward the periphery, and the wooden bricks having the above structure are placed in each of the holding sections of the frame and further fixed by the fixing means.

Although the frame body can be configured to have a rectangular shape when viewed from above, it is convenient to configure it to have a square shape from a perspective view.

Needless to say, the holding section is configured to have a planar shape that matches the shape of the actual brick. -Rectographically, it is rectangular or square.

The number of holding sections is also not particularly limited.

For example, if the planar shape of the target real brick is a square, nine holding sections can be configured in three rows each in the vertical and horizontal directions. In this case, by forming the partition walls in a lattice shape, the holding partitions can be arranged vertically and horizontally as described above. The partition wall is common to adjacent holding partitions.

Alternatively, for example, a configuration may be adopted in which about three rows of holding compartments that hold wooden bricks that are rectangular in plane are arranged so that their longitudinal side surfaces are in contact with each other.

The means for fixing the wooden bricks is not limited to a specific configuration, and various configurations can be adopted.

For example, the main body is a pedestal on which a wooden brick is placed. This cradle is configured as a pedestal slightly raised from the bottom of the holding compartment. Furthermore, the edge of the upper surface of this pedestal is slightly elevated. The inner side is a relatively slightly lower plane. One or two screw holes penetrating the front and back sides are bored in this inner plane. Furthermore, it is preferable to drill one or more small holes around the circumference. When the holding section is square in plan, it is appropriate to construct one pedestal in the center of the holding section. When the holding section is rectangular in plan, it is appropriate to arrange a plurality of pedestals at appropriate intervals depending on its length. The pedestal is configured to be supported by a plurality of arms extending from near the lower part of the partition wall of the holding section.

Needless to say, the connecting female part and the connecting female part are configured to be able to respectively connect with the connecting female part and the connecting female part of an adjacent frame body.

In the simplest configuration, as described above, on each side, a protrusion (connection female part) corresponding to the thickness of the peripheral wall is provided in a symmetrical position at one position, The other position has a configuration in which a fitting hole (connection female part) into which the above-mentioned protrusion can fit is bored.

With such a configuration, adjacent frames can be connected to each other at any side. This is particularly meaningful in cases where the bricks held in the frame are rectangular in plan, and where the pattern of the pavement or floor surface differs depending on the orientation.

Note that the frame is suitably molded from a plastic material having sufficient strength.

On the other hand, as described above, the wooden bricks can be freely configured to have a square or rectangular shape. However, it goes without saying that it must correspond to the shape and dimensions of the holding section constructed in the frame.

The above-mentioned bricks should be preservative treated.

The wood bricks are charged and held in the holding sections of the frame.

Wooden bricks are loaded by pushing them into the frame placed upwards from above.

If the upper end of the partition wall of the holding compartment is formed so that it becomes thinner toward the top, this will serve to guide the wooden bricks into the holding compartment, so that the charging thereof will be smooth.

After all the holding sections of the frame are filled with wood bricks, for example, if the fixing means is configured as a pedestal with screw holes as described above, turn the frame upside down and insert the screws. Insert a screw through the hole and screw it into the bottom of the wooden brick.

Since the composite wood brick of the present invention is constructed as described above, it can be used for constructing an indoor floor surface of a building or for constructing an outdoor wood brick pavement.

For example, installation work on sidewalks and other areas where installation is required is carried out as follows.

First, prepare a suitable base such as a gravel base or concrete base.

The above-mentioned gravel base is made by digging down the required area, adding gravel, and thoroughly compacting it to make it smooth.

For the concrete base, after digging down the required area in the same way,
- It is sufficient to cast it using method B and finish the top surface smoothly.

Composite wood bricks made by holding real bricks in the frame are arranged vertically and horizontally on the gravel or concrete base as described above. The connecting female parts and connecting female parts formed on the circumferential side of the frame are arranged so as to connect adjacent parts to each other as described below.

First, a number of composite bricks corresponding to the number of composite bricks lined up at the ends of the existing composite brick group in the connecting direction are connected in a line. Naturally, this connection is made by connecting the connecting female part of one of the adjacent composite brick frames to the connecting female part of the other, and then connecting the composite bricks of these rows. The bricks are connected to a row of composite wood bricks at the ends of the existing composite main brick group by connecting the connecting female parts to each other in the same manner as described above.

By performing this kind of work over the necessary areas,
The installation is complete.

Therefore, even an amateur can perform smooth paving using real bricks very easily and efficiently by continuously installing composite real bricks.

The same applies when configuring an indoor floor surface.

By the way, this composite wood brick has the advantage that cracks do not easily occur because the peripheral side of the main brick is firmly held by the partition wall. Furthermore, since the overhang is formed on the upper part of the real brick, there is an advantage that the upper end of the partition wall is largely hidden by this and cannot be seen. Furthermore, the tip of the overhang is thin because the upper surface is sloped downward toward the edge.
As a result, there is an advantage that even if sand or the like gets into the gap between the tips of the overhanging parts of adjacent regular bricks, it will be thrown upward when the regular bricks expand and contract. In addition, as mentioned above, this brick has a structure in which the upper surface periphery is sloped downward toward the peripheral edge, so when this brick is used for indoor floors or outdoor paved roads, it has the advantage of being less likely to cause tripping. There is.

[Example] The present invention will be described in detail below based on the drawings.

First, a first embodiment of the present invention will be described based on FIGS. 1 to 6.

In particular, as shown in FIGS. 3 and 4, the frame l is configured to have a square shape when viewed from above. In addition, nine holding sections 2.2 each having a square plane are formed in the frame 1 vertically and horizontally.

The holding compartments 2.2... are each surrounded by partition walls 3.3.
..., and those partition walls 3.3.
... are common between the mutually adjacent holding compartments 2.2, and the partition walls 3.3 at positions forming the outer wall 4.4 of the frame l are the same as the frame 1 outer wall 4.4...-
It is configured in common with However, the holding section 2.2...
It is constructed in a lattice-like compartment formed by four rows of vertical partition walls 3.3... groups and four rows of horizontal partition walls 3.3... groups (as described above). Frame 1 like
The partition wall 3 of the part that forms the outer wall 4 of is common to them).

Note that the section walls 3.3... have a thickness that is 1/2 that of the other partition walls 3.3... in the common portion with the outer wall 4 of the frame l. As will be described later, when composite wood bricks formed by holding real bricks 5. 4
This is to ensure that the distance between the regular bricks 5.5 that are in contact with each other is the same as the distance between the regular bricks 5.5 inside the frame 1.

Note that the upper ends of the partition walls 3.3 are thinner toward the tips. That is, as shown in FIG. .3 has a structure that becomes thinner toward the center when viewed in cross section.Also, the wall that is common to the outer wall 4 of the frame 1 has a structure that becomes thinner toward the outer surface.

In any case, the tip should be rounded to ensure safety.

Further, in the lower center of each of the holding sections 2, 2, . . ., as shown in FIGS. 2 to 6, a pedestal 6 for each brick 5 is arranged. The cradle 6.6 is a circular pedestal raised from the bottom of the holding section 2.2. Further, the pedestals 6, 6, . . . have a slightly lower circular plane portion 7 on the inside, leaving a peripheral edge on the upper surface. A single screw hole 8 penetrating from the front surface to the back surface is bored in the center of each of the circular plane parts 7, 7, . . . . Furthermore, small holes 9.9 are drilled around the screw holes 9 and 9, which are lined up in a straight line with the screw holes 8. As shown in FIG. 3, the pedestal 6 supports arms 10 extending from each of the four inner corners of the holding section 2.

In addition, around the lower part of the above-mentioned pedestal 6.6..., above-mentioned arm 10
．． Subsidence prevention plates 11 are horizontally extended on both sides of the lower portions of the partition walls 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 3, 3, 3, .

By the way, as shown in FIGS. 1 to 5, connection protrusions 12 and connection holes 13 are formed on each of the four sides of the outer wall 4 of the frame 1. The connecting protrusion 12 and the connecting hole 13 are arranged at symmetrical positions on each side, and have dimensions and shapes that allow them to fit into each other. More specifically, as shown in FIGS. 2 to 5, the connecting protrusion 12 is positioned above the outer wall of the frame 1 by an amount that slightly exceeds the thickness of the subsidence prevention plates 11, 11... Make it stick out from 4. The protrusion width is made approximately equal to the thickness of the outer wall 4. The thickness in the height direction is approximately the same as the height of the pedestal 6 from the subsidence prevention plate 11. Further, as shown in FIGS. 1 and 3, the connecting protrusion 12.
The length in the direction along the outer wall 4 of 12... is the length of the holding section 2
．． As an example, take half the length of the negative side of 2....

On the other hand, the connection hole portion 13 is a hole having a size and shape corresponding to the connection protrusion 12, as described above. As shown in FIG. 2, FIG. 4, and FIG.
It is drilled in the outer wall 4 of.

All of the above-mentioned components are integrally molded from a plastic that is mainly made of polypropylene and mixed with weather-resistant agents and the like.

On the other hand, as shown in FIG. 1, FIG. 2, FIG. A slightly overhanging projecting portion 14 is formed. Further, the brick 5 has slopes 15 on its upper surface near the four sides that slope downward toward the sides. Furthermore, the lower four sides of the brick 5 are rounded.

Note that the wooden bricks 5 should be subjected to antiseptic treatment.

The wooden bricks 5.5... are attached to the holding section 2 of the frame 1.
．． 2...- to form a composite wooden brick.

The above-mentioned book brick 5.5... is, as shown in Fig. 3,
With the frame 1 facing upward, its holding compartment 21.2...
・Push in sequentially from the top. The above holding section 2.2...
The upper ends of the partition walls 3.3 .
Since the four sides of the lower part of 5... are rounded, the main brick 5.5... can be smoothly attached to the holding section 2.2...
charged inside. By repeating this operation for each frame 1, ■... for the number of holding sections 2.2..., the actual bricks 5.5... are loaded onto the required number of frames L, 1... can be entered.

Subsequently, the holding section 2.2 of the wooden brick 5.5...
- Turn over the frame 1.1... that has been inserted into..., insert the screw 16 into the screw hole 8 from the back side of each pedestal 6.6..., and insert it into the wooden brick 5 from the back side. They are screwed together and the wooden brick 5 is fixed on the pedestal 6. It is efficient to screw the screw 16 into the brick 5 using an electric screwdriver. Figures 1 and 2 show wooden bricks 5.5...
The frame 1 is shown in which a composite main brick is constructed by holding the blocks in the holding sections 2.2...

Since the composite wood brick of this example has the above-described structure, it can be used for constructing indoor floors and for paving sidewalks and the like with wood bricks.

In order to construct the floor surface of the room, it is necessary to construct a flat base of concrete or the like, and then arrange composite real bricks in a vertical and horizontal manner on top of the flat base by connecting them to each other. This process involves simply placing the composite wood bricks on the base, connecting adjacent pieces to each other. For example, as shown in FIG. 5, adjacent composite wood bricks are moved by advancing the frame 1 of one composite wood brick toward the frame 1 of the other composite wood brick as shown by the arrow X. The connection protrusion 12 and the connection hole 13 of the outer wall 4 of the frame 1 are fitted into the connection hole 13 and the connection protrusion 12 of another frame 1, respectively, to connect them to each other. In this way, the adjacent composite wood brick frame 1.
The construction work is completed by carrying out the installation work over a predetermined area while connecting each other. In this way, a smooth floor surface made of wooden bricks 5.5... is completed. Note that since the connecting protrusion 12 and the connecting hole 13 are configured on each side as described above, the frame l
The side edges of the frame body 1 can also be connected to the side edges of the other frame body 1.

On the other hand, the above-mentioned composite wood bricks are laid on sidewalks etc. by preparing a gravel base or concrete base.

Here, an example will be shown in which a gravel base 17 is prepared and laid on a sidewalk in a park.

This gravel base 17 is made by digging down the required area, pouring gravel into it, and thoroughly compacting it to make it smooth.

On the gravel base 17, composite real bricks formed by holding the real bricks 5, 5, . This work is exactly the same as when constructing the floor surface of the room described above. Once the installation work is done over a predetermined area, the work is completed. Thus, this brick 5.5...
・Frame 1 made of composite wood bricks to create smooth pavement
．． It can be completed by an extremely simple operation of arranging 1... in series.

By the way, in the above-mentioned composite real bricks, since the partition walls 3.3... firmly hold the circumference of each wooden brick 5.5..., cracks do not easily occur even when treading pressure is applied. In addition, since an inclined surface 15 is formed on the upper surface toward each side,
Another reason why cracks are less likely to occur is that tread pressure is less likely to be applied near the edges. Furthermore, even if a crack occurs partially, it will not easily separate because it is firmly held by the partition walls 3.3.

In addition, an overhanging portion 14, 14...
. , there is also an advantage that the upper ends of the partition walls 3.3-- are generally hidden behind these and cannot be seen. Furthermore, the above-mentioned overhang part 1
4. The tip of 14... is thin because the upper surface of the brick 5 has an inclined surface 15 facing toward the edge.
As a result, the overhang 14.1 of the adjacent real brick 5.5
4. Even if sand etc. gets into the gap between the tips of this brick, 5.
5... has the advantage of being thrown upwards during expansion and contraction. In addition, as mentioned above, the vicinity of the upper side of the real brick 5.5... is constructed with an inclined surface 15.15... toward the edge, so this can be used as an indoor floor surface or an outdoor floor surface as described above. It also has the advantage of being less likely to cause tripping when used on paved roads.

Next, a first embodiment of the present invention will be briefly described based on FIGS. 7 to 11.

As shown in FIGS. 7 and 9, a square frame 21 is formed when viewed from above, and holding sections 22, 22, 22 that are rectangular in plan are arranged side by side in the frame 21. .

The holding compartments 22, 22, 22 are each surrounded by a partition wall 2.
3.23..., and these partition walls 23.23... are respectively surrounded by mutually adjacent holding partitions 22.
．． 22 are configured in common, and the outer wall 2 of the frame 21
The partition walls 23, 23, . In addition, the above partition wall 23.23
. . . is formed to have a thickness of 1/2 of the thickness of the other portions of the frame body 21 in common with the outer wall 24 of the frame body 21. This is the same purpose as the previous embodiment.

Each holding section 22.22.22 also has an underframe 38.
38 are arranged and configured at positions that divide the inside of the compartment into three equal parts. Underframe 3
8.38, as shown in FIG. 9, is constructed in the form of a frame with both ends connected to the partition walls 23.23 on the longer sides. The height is the same as that of a pedestal 26, which will be described later.

Furthermore, in each of the holding compartments 22, 22, 22, there are shown in FIGS.
As shown in FIG. 11, the pedestals 26 of the real bricks 25 are placed at the lower center of the three square areas divided by the underframes 38, 38. Each of the above pedestals 26
．． 26... is a pedestal raised from the bottom of the holding section 22, 22, 22. That is, the height is the same as that of the underframe 38.38. Moreover, the above-mentioned pedestals 26, 26... are on the top surface.

A slightly lower planar recess 27 is formed on the inside, leaving the surrounding edge.
shall be. As shown in FIG. 9, the planar recesses 27, 27, . . . have a similar planar shape to the pedestals 26, 26, . The above-mentioned plane concave portions 27, 27...,
Two screw holes 28 and 28 are bored through from the front surface to the back surface. Further, from the outer peripheral portion of each of the above-mentioned pedestals 26, 26--, eight arms 30, 30-- are protruded at equal angular intervals in the radial direction, as shown in FIG. It is connected to the lower part of the walls 23, 23... or the lower part of the underframe 38, 38.

In addition, inside the lower part of the partition wall 23, 23..., the underframe 38
．． 38..., around the lower part of the pedestals 26, 26..., and on both sides of the lower part of the arms 30, 30..., subsidence prevention plates 31 are horizontally extended.

Furthermore, as shown in FIGS. 7 to 11, the above frame body 21
There are connection protrusions 32 and connection holes 33 on each of the four sides.
constitutes. The connection protrusion 32 and connection hole 33 are as follows:
They are arranged in symmetrical positions on each side, and have dimensions and shapes that allow them to fit together. More specifically, the connecting protrusion 32 is
The subsidence prevention plates 31, 31, .

The protrusion width is made approximately equal to the thickness of the outer wall 24. The thickness in the height direction is approximately the same as the height of the pedestal 26 from the subsidence prevention plate 31. Further, as shown in FIGS. 7 and 9, the lengths of the connecting protrusions 32, 32, . It should be a little less than half the length of one side.

As described above, the connection hole 33 is connected to the connection protrusion 3.
This hole has a size and shape corresponding to 2. As shown in FIG. 8, FIG. 1O, and FIG. 11, the connection hole 33 is bored in the outer wall 24 of the frame 21, positioned upward by the thickness of the subsidence prevention plates 31, 31... do.

All of the above-mentioned components are integrally molded from a plastic that is mainly made of polypropylene and mixed with weather-resistant agents and the like.

On the other hand, as shown in Section 7 and FIG. 8, the main brick 25 to be held has a rectangular shape when viewed from above, and has projecting portions 34 slightly overhanging from the vicinity of the top surface on four sides. Configure. Further, the main brick 25 has inclined surfaces 35a, 35a, 35b, and 35b inclined downward toward the sides near the four sides on the upper surface thereof.

Furthermore, the four lower sides of the main brick 25 are configured to have corner portions.

Note that the wooden bricks 25 should be subjected to antiseptic treatment.

The wooden bricks 25, 25, . . . are held in the holding sections 22, 22, . . . of the frame 21 to form a composite wooden brick.

As shown in FIG. 9, the wooden bricks 25, 25, .
22...Push it in sequentially from above. The above holding section 22
．． The partition walls 23, 23, which constitute 22,... are constructed so that the upper ends become thinner toward the tips, and the four sides at the bottom of the main bricks 25, 25, and so on are rounded. Therefore, the wooden bricks 25, 25... can be smoothly charged into the holding sections 22, 22.... This work is carried out for each frame 21.21... in the holding section 22.22.
By repeating the number of..., the real brick 25.25
... can be loaded into the required number of frames 21, 21....

Continuing, the holding section 22 of the wooden brick 25.25...
．． Turn over the frames 21, 21... that have been inserted into 22..., and insert screw holes 2 from the back side of each pedestal 26, 26...
8, screw them onto the wooden bricks 25 from the back side, and fix the wooden bricks 25 onto the pedestals 26, 26, and 26, respectively. FIGS. 7 and 8 show the frame 21 in which the real bricks 25, 25, . . . are held in the holding sections 22, 22, . . . to form a composite wood brick as described above.

In this example, the composite real bricks are constructed as described above, except that the objects to be held in the holding sections 22, 22... are rectangular wood bricks 25, 25... when viewed from the top. is used in the same manner as in the first embodiment and has the same effects.

In this example, as shown in FIG.
8 also plays the role of a pedestal on which the main brick 25 is placed together with the pedestals 26, 26, and 26.

The process of laying it on a sidewalk or the like or constructing an indoor floor is exactly the same as the explanation for the first embodiment.

[Effects of the Invention] According to the present invention, a smooth floor or pavement made of wooden bricks can be completed by an extremely simple operation of arranging frames constituting composite wooden bricks in series.

By the way, in the above-mentioned composite wood brick, since the peripheral side of the wood brick is firmly held by the partition wall, cracks do not easily occur. Additionally, since the top surface of the wooden brick is sloped toward each side, it is difficult to apply pressure near the sides, which is another reason why cracks are less likely to occur. Furthermore, even if a crack occurs partially, it has the advantage that it will not easily separate because it is firmly held by the partition wall.

In addition, since an overhang is formed at the upper part of the side of the real brick, there is an advantage that the upper end of the partition wall is generally hidden by this and cannot be seen. Furthermore, the tip of the overhang is thin because the top surface of the wooden brick has a sloped surface toward the edge, and as a result, sand, etc. can accumulate in the gap between the tips of the overhang of adjacent wooden bricks. This has the advantage that even if it gets in, it will be thrown upwards when the brick expands and contracts.

In addition, as mentioned above, this brick has a sloped surface toward the side edge near the top edge, so if it is used on an indoor floor or an outdoor paved road surface, it may cause tripping. It has some advantages. In addition, it also prevents slipping.

Furthermore, since the composite wood brick of the present invention has the connecting means configured as described above, any side can be connected to any side of another composite wood brick. By freely determining the connection direction, it is possible to configure any desired brick pattern.

[Brief explanation of the drawing]

The drawings illustrate embodiments of the invention. 1 to 6 show a first embodiment of the present invention, FIG. 1 is a plan view thereof, FIG. 2 is a sectional view taken along the line ■-■ in FIG. 1, and FIG. 3 is a frame diagram. Plan view of the body, Figure 4 is the ■-IV of Figure 3
A line cross-sectional view, Figure 5 is a partially cutaway cross-sectional view showing how composite wood bricks are connected to each other by their connecting protrusions and connection holes, and Figure 6 is a state in which composite wood bricks are laid on a gravel base. It is a partially cutaway enlarged cross-sectional view showing. 7 to 11 show a second embodiment of the present invention, FIG. 7 is a plan view thereof, FIG. 8 is a sectional view taken along the line ■-■ in FIG. 7, and FIG. 9 is a frame diagram. The plan view of the body, Fig. 10, is the x- of Fig. 9.
11 is a sectional view taken along the line XI-XI of FIG. 9. l, 21... Frame body, 2.22... Holding section, 3.2
3... Partition wall, 4.24... Outer wall, 5.25...
Wooden brick, 6.26... pedestal, 7... circular plane part,
8.28...screw hole, 9...small hole, 10.30...
・Arm, 11.31-・Sinking prevention plate, 12.32・
・・Connection protrusion, 13.33・−Connection hole, 14.34・
... Overhanging portion, 15.35a, 35 b-=slanted surface, 1
6.36... screw, 17... gravel base, 27...
Plane recess, 38...underframe, X...arrow.

Claims (1)

[Claims] A quadrilateral frame is formed when viewed from above, and a plurality of holding sections for holding wooden bricks are formed in the frame, and each holding section is provided with a wooden brick to be held. It constitutes a compartment wall that tightly holds the peripheral sides and a fixing means for fixing the wooden bricks to be held in the holding compartment, and is further connected to the four sides of the frame with connecting female parts that are capable of being connected to each other. The female parts are arranged so that they are in a mutually symmetrical positional relationship on each side, and on the other hand, the wooden bricks are constructed so that the peripheral sides thereof can be closely held by the partition walls of the holding compartment. , The upper peripheral edge of the wooden brick has an overhang extending toward the upper end of the partition wall and upward from the upper end, and furthermore, the upper surface near the peripheral edge of the wooden brick is inclined downward toward the peripheral edge. . A composite wood brick, in which the wood bricks having the above structure are placed in each of the holding sections of the frame, and each of the wood bricks is fixed by the fixing means.