JP2774085B2 - Aggregate and manufacturing method of aggregate - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thinned thinned wood, a short wood and a piece of wood that are removed during the growth process of cedars and cypresses, and a collective material capable of effectively utilizing the same. In particular, when assembling a plurality of thinning materials, each thinning material can be assembled with sufficient strength without using an adhesive, and health and hygiene are hindered by the organic solvent contained in the adhesive. The present invention relates to a safe and low-cost aggregate material and a method for manufacturing the aggregate material.

[0002]

2. Description of the Related Art In general, cedar, cypress and the like are frequently used as building materials. However, since they are originally soft materials, their ruggedness is low, and the range of use thereof is naturally limited. In particular, thinning materials removed during the growing process of cedars, cypresses, etc. are small-diameter trees, and are often extremely soft and curved.
For example, it could hardly be used as a pillar or the like.

[0003] In order to use such thinned wood effectively,
Conventionally, various methods have been proposed. For example, Japanese Unexamined Patent Publication (Kokai) No. 3-231802 describes a method for modifying wood in which wood is softened by being placed in a steam atmosphere, and then compression-molded under high-pressure conditions to fix deformation of the wood. ing. Japanese Patent Application Laid-Open No. 3-97503 describes a method for treating wood, which is softened by high-frequency dielectric heating and then pressurized. Furthermore,
Japanese Unexamined Patent Publication No. Hei 5-116112 discloses a composite wooden pole material obtained by preliminarily chamfering a plurality of thinned materials into a wedge-shaped rectangular wooden pole material, and assembling the square wooden pole materials while bonding them with an adhesive. Have been described.

[0004] However, Japanese Patent Application Laid-Open No.
No. 2 and Japanese Patent Application Laid-Open No. 3-97503 disclose the method of treating wood, which softens the thinned wood and then pressurizes it to modify it. It is only a processing method for performing the processing. Therefore, although it is possible to improve the use of thinned lumber with low use value and to effectively use it as a building material, the range of use of thinned lumber thus modified is that the thinned wood itself has a small diameter. Given that it is a tree, it is not available over a wide range of building materials.

[0005] The composite wooden pillar described in Japanese Patent Laid-Open No. 5-116112 is assembled by bonding a plurality of thinned materials to each other with an adhesive. In order to form a predetermined shape (for example, a square shape), each thinned material needs to be chamfered in advance to be a wedge-shaped square wooden pillar material. Preliminarily chamfering each thinned material is a very complicated operation, and there is a problem that the cost increases accordingly.

To solve such a problem, Japanese Patent Laid-Open No.
JP-A-32325 and the like disclose a glue laminated material that softens a plurality of pieces of wood, applies an adhesive to the surface of each piece of wood, compresses and compresses each piece of wood into a predetermined shape, and a method of manufacturing the same. I have. According to such a laminated wood and its manufacturing method, it can be used over a wide range of building materials, and it is possible to improve the productivity by shortening the curing period required for the conventional aggregated wood. It is possible to provide a low-cost aggregate material and a method of manufacturing the aggregate material.

[0007]

However, in the above-mentioned conventional laminated wood, it is necessary to use an adhesive for bonding the respective wood pieces after the softening treatment. Here, in the adhesive, since the resin component is generally dissolved in an organic solvent, when applying the adhesive to the surface of each wood, and when compressing each wood after the adhesive is applied, ,
The organic solvent contained in the adhesive volatilizes and is released into the outside air. The organic solvent released into the outside air in this way is often harmful to the human body, which causes a problem in health and safety.

Further, many organic solvents contained in the adhesive volatilize rapidly even at room temperature.
Therefore, there is a possibility that the viscosity, the component ratio, and the like of the adhesive may change during storage, and therefore, the management of the adhesive must be strictly performed. Management of such adhesives is very complicated. In addition, if the adhesive is not strictly managed, there is a possibility that each wood will not be assembled with sufficient strength. Furthermore, since an adhesive is used to assemble each piece of wood, an adhesive application step is always performed after each piece of wood is softened, which requires an extra step. Thus, the management requirements of the adhesive,
In addition, there is a problem that the production cost of the glued laminate increases due to the necessity of the adhesive application step.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems. When collecting a plurality of thinned materials, the thinned materials can be assembled with sufficient strength without using an adhesive. An object of the present invention is to provide a safe and low-cost aggregate material and a method for manufacturing the aggregate material, which do not impair health and hygiene due to an organic solvent contained in the adhesive.

[0010]

According to a first aspect of the present invention, there is provided a collective material comprising a plurality of dovetail-shaped grooves formed along a length direction around a log material. After being subjected to a softening treatment in a state where the woods are laminated, a collective material obtained by performing a compression molding and a fixing treatment at a predetermined compression ratio, wherein the log material and each wood is a dovetail shape formed on each wood. It is characterized in that it is connected and fixed in a state of biting each other through the concave groove of each, and each wood is connected and fixed in a state of biting each other through a dovetail shaped groove formed in each. I do. Such grooves may be on one or both sides of the opposing wood.

[0011] According to a second aspect of the present invention, there is provided a collective material comprising a plurality of pieces of wood having a dovetail-shaped groove formed along a length direction around a log material. A step of laminating each other, a step of performing a softening treatment in a state where the log and a plurality of pieces of wood are laminated, and performing a compression molding at a predetermined compression ratio after performing the softening treatment, and forming the log and each piece of wood. Connected and fixed in a state of biting each other through a dovetail-shaped groove formed in each wood, and connected and fixed in a state of biting each other through a dovetail-shaped groove formed in each wood step and said to perform fixing processing after compression molding, round timber and state and the timber is fixedly connected bite one another each timber through the concave groove of the dovetail formed on each timber that dovetail to Bite into each other through the groove of It is prepared by a process comprising the steps of.

[0012] In the method for manufacturing an aggregate according to the first aspect and the aggregate according to the second aspect, the plurality of pieces of wood having a dovetail-shaped groove formed along the length direction around the log. After performing the softening treatment in the state of laminating, when compression molding at a predetermined compression ratio, the log and each wood are biting each other through the dovetail shaped groove formed in each wood. At the same time, each wood is in a state of biting each other through the dovetail-shaped groove formed in each, thereby the log and each wood, and each wood, when the compression molding is completed, The dovetail-shaped grooves are integrally connected and fixed. Subsequently, the log and each piece of wood are fixed in a state where they are connected and fixed, and as a result, the aggregated material in which the connected and fixed state of the log, each piece of wood and each piece of wood is permanently maintained. Is obtained.

As described above, according to the aggregated material and the method for manufacturing the aggregated material according to the first and second aspects of the present invention, the adhesive for binding the respective wood pieces is unnecessary, and is contained in the adhesive. An assembly material having sufficient strength can be obtained safely at a low cost without impairing health and hygiene by an organic solvent.

[0014] Further, the collective material according to claim 3 is a pigeon on four sides.
After softening treatment in the state in which the round timber on each side of the groove of Ogata formed prismatic member, a collection member made by performing compression molding and fixing treatment at a predetermined compression rate, the Each of the logs is connected and fixed in such a manner as to bite into the dovetail-shaped groove on each side of the prism material. In the collective material according to claim 3, when compression processing is performed at a predetermined compression ratio after performing a softening treatment in a state where a log material is disposed on each side of a prism material having a dovetail-shaped concave groove formed on four sides, , Each log is
It is in a state that it has cut into the concave groove on each side of the prism material,
Thus, when the compression molding is completed, the logs and the prisms are integrally connected and fixed via the concave grooves on the four sides of the prisms. Subsequently, each log and the prism material are fixed to each other in a state where they are connected and fixed to each other, and as a result, the assembly in which the connected and fixed state of each log and the prism material is permanently maintained Wood is obtained. Thus, according to the collective material according to the third aspect, similarly to the case of the first and second aspects, the adhesive for binding each log material and the prism material is unnecessary, and the adhesive is included in the adhesive. An aggregate material having sufficient strength can be obtained safely and at low cost without impairing health and hygiene due to the contained organic solvent. Furthermore,
The aggregated material according to claim 4 is recessed at a plurality of locations on the upper and lower sides of each of the plurality of woods in a direction intersecting the length direction thereof, and so as to be mutually staggered at the upper and lower sides. A plurality of continuous grooves formed by forming grooves and aligning the upper and lower grooves in each piece of wood with each other are arranged in a zigzag pattern on the upper and lower sides, and each continuous groove is formed. After performing softening treatment with the reinforcing wood inserted in the groove,
An aggregate obtained by performing a compression molding and a fixing treatment at a predetermined compression ratio, wherein each of the timbers is connected and fixed to each other in a state where each of the reinforcing timbers bites into each of the continuous grooves. Features. In the assembling material according to claim 4, grooves are formed at a plurality of upper and lower portions of each of the plurality of woods in a direction intersecting with the length direction thereof and in a staggered manner at the upper and lower sides. Are formed, and a plurality of continuous grooves formed by aligning the upper groove and the lower groove in each piece of wood with each other are arranged in a staggered manner on the upper and lower sides, and each continuous groove is formed. After performing the softening process in a state where the reinforcing wood is inserted into the inside, when performing compression molding at a predetermined compression ratio, the plurality of continuous grooves formed of the grooves of each wood and the reinforcing wood bite each other. When the compression molding is completed, each piece of wood is integrally connected and fixed via each continuous groove and the reinforcing piece of wood. Subsequently, the respective woods are subjected to a fixing process in a state of being connected and fixed, and as a result, an aggregate material in which the connected and fixed state of each wood is permanently maintained is obtained.
Thus, according to the collective material of claim 4, as in the case of the collective material, an adhesive for binding each wood is not required, and the health and hygiene due to the organic solvent contained in the adhesive is eliminated. Thus, an aggregate having sufficient strength can be obtained safely at a low cost without hindering the assembly.

According to a fifth aspect of the present invention, there is provided a collective material wherein a plurality of pieces of wood having a slot and a groove formed in a direction intersecting with the longitudinal direction are laminated so that the slot and the groove are aligned. A multi-stage aggregate material that is made by inserting reinforced wood into the slot,
After the grooves are arranged so as to face each other, and the softening process is performed in a state where the pillars are arranged in the grooves between the respective collective raw materials, the compression molding and the fixing process are performed at a predetermined compression ratio. Wherein each of the wood pieces is connected and fixed to each other in a state where the groove and the reinforcing wood bite into each other in the collective raw material, and each collective raw material has a groove and a pillar material. It is characterized by being interconnected and fixed in a biting state. In the collective material according to claim 5, a plurality of pieces of wood having a slot and a groove formed in a direction orthogonal to the length direction are laminated so that the slot and the groove are aligned, and reinforcing wood is placed in each slot. A plurality of stages of the assembled raw materials to be inserted were arranged so that the respective grooves face each other, and the softening treatment was performed in a state where the pillars were arranged in the respective grooves between the respective aggregate raw materials. After that, when performing compression molding at a predetermined compression ratio, each wood is in a state where the groove and the reinforcing wood have digged into the aggregate raw material, and each aggregate raw material has digged the groove and the column material. In this state, when the compression molding is completed, the respective woods are integrally connected and fixed via the slot and the reinforcing wood, and the respective collective raw materials are integrally formed via the concave grooves and the pillars. Connected and fixed. Subsequently, each wood and the aggregate raw material are subjected to a fixing process in a state where they are connected and fixed, respectively. As a result, an aggregate material in which the connected and fixed state of each wood is permanently maintained is obtained. Thus, according to the collective material of claim 5, as in the case of the collective material, an adhesive for binding each wood is not required, and the health and hygiene due to the organic solvent contained in the adhesive is eliminated. Thus, an aggregate having sufficient strength can be obtained safely at a low cost without hindering the assembly.

Further, in the aggregate according to claim 6, a first groove having a predetermined width and a pair of first cuts are formed so as to have the same width as the first groove in a direction intersecting the length direction. First lumber in which first biting portions divided by the first cut are formed at predetermined intervals, and are formed corresponding to the first grooves of the first lumber.
And a second timber to form a second groove corresponding to the second biting projections and the first biting portion is divided by a pair of second notches, each first groove and the second bite portion corresponds, and ,
The first recesses correspond to the first recesses so that the first recesses correspond to the second recesses.
An aggregate obtained by performing a softening process in a state where the wood and the second wood are stacked on each other, and then performing a compression molding and a fixing process at a predetermined compression ratio, wherein the first bite in the first wood is provided.
The first wood and the second wood are connected and fixed to each other in a state where the cut -in portion cuts into the second groove and the second cut-in portion of the second wood bites into the first groove. It is characterized by. In the assembling material of the sixth aspect, a pair of first notches are formed in the direction intersecting the length direction so as to have a first groove having a predetermined width and the same width as the first groove, and are divided by the first notch. a first timber in which the first biting projections formed at predetermined intervals that one which is formed corresponding to the first groove of the first timber
And a second timber to form a second groove corresponding to the second biting projections and the first biting portion is divided by the second cut pair, each first groove and the second bite portion corresponds, and When performing a softening treatment in a state where the first wood and the second wood are stacked on each other so that each first biting portion and the second groove correspond to each other, and then performing compression molding at a predetermined compression ratio. Then, the first biting portion of the first wood is bitten into the second groove, and the second biting portion of the second wood is bite into the first groove. When the compression molding is completed, the second wood and the second wood are integrally connected and fixed via the first groove and the second bite portion, and the first bite portion and the second groove. Following this, each first,
The second wood is subjected to a fixing treatment in a state of being connected and fixed,
As a result, an aggregate is obtained in which the connected and fixed state of the first and second wood pieces is permanently maintained. As described above, according to the aggregate of claim 6, as in the case of the aggregate, an adhesive for binding each wood is not required, and the health and hygiene due to the organic solvent contained in the adhesive is eliminated. Thus, an aggregate having sufficient strength can be obtained safely at a low cost without hindering the assembly.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. First, the aggregate according to the first embodiment will be described with reference to FIG.
FIG. 1 is a perspective view of the assembly of the first embodiment.

In FIG. 1, a plurality of aggregates 1 (FIG. 1)
The raw materials 2 (made of thinned log-like thinned wood in the shape of a drum, which will be described later) are compressed and assembled together and connected and fixed. As will be described in detail later, each raw material 2 has a plurality of groove holes 3A (in FIG. 1, three grooves are formed on the side surface of the raw material 2 at the left end position) along a direction orthogonal to the length direction thereof. A hole 3 </ b> A is shown) so as to penetrate the raw material 2. Further, each raw material 2 is aligned while the slots 3A formed in each raw material 2 are aligned with each other so that one slot 3 is formed across each raw material 2. In addition, a rectangular pillar-shaped reinforcing wood 4 is inserted into the slot 3 over the entire raw material 2. Here, as the thinned wood, a thinned wood such as cedar and cypress which has been removed during the growth process is used.

Subsequently, the aggregate 1 constructed as described above
A manufacturing method for manufacturing the semiconductor device will be described with reference to FIGS. Here, FIG. 2 is a perspective view schematically showing an aggregated raw material obtained by combining the raw material 2 and the reinforcing wood 4, and FIG. 3 is a cross-sectional view showing a state where the aggregated raw material is arranged in a compression molding apparatus. 4
FIG. 3 is a cross-sectional view showing a state of the compression molding apparatus after compression molding of the raw material assembly.

In order to manufacture the aggregate 1, first, as shown in FIG. 2, the slots 3 A formed in each of the raw materials 2 are aligned with each other (matched), and one slot 3 (FIG. Has three slots 3
Are shown, for example, four raw materials 2 each
Are laminated in the thickness direction. Next, reinforcing wood 4 is inserted into each slot 3. Thereby, the collective raw material 5 shown in FIG. 2 is obtained.

Next, the assembled raw material 5 constructed as described above
Is placed in a compression molding apparatus, and a softening process, a compression molding process, and a fixing process described below are performed. Here, the compression molding apparatus will be described with reference to FIG. In FIG. 3, the compression molding apparatus 10 includes a pressure vessel 11 (long in a direction perpendicular to the paper) elongated in a tubular shape having a rectangular cross section. Rod holes 12, 13, and 14 are formed in both walls, respectively.

A press cylinder 15 is connected to one end of the rod hole 12 outside the pressure vessel 11 and a press rod 17 having a press die 16 attached to the other end inside the pressure vessel 11 is slidable. It has been inserted.
In this way, when pressurizing and compressing the collective raw material 5 described later, the press rod 17 is moved downward via the press cylinder 15, and the press die 16 is moved with the movement of the press rod 17. 5 is pressed from above. Further, a large number of steam holes 16A are formed in the press die 16, and steam is passed through each of the steam holes 16A during a softening process (steam process) to be described later, and the aggregated raw material 5 arranged below is formed. Injected to.

A press cylinder 18 is connected to one end of the pressure vessel 11 outside the pressure vessel 11 in the same manner as the press rod 17, in a rod hole 13 formed in the left wall of the pressure vessel 11. Press mold 1 on the other end inside
A press rod 20 to which 9 is attached is slidably inserted. A large number of steam holes 19 </ b> A are formed in the press mold 19, similarly to the press mold 16, and steam is passed through each steam hole 19 </ b> A during steam processing and is injected into the collective raw material 5. .

Further, similarly to the press rods 17 and 20, a press cylinder 21 is connected to one end of the outside of the pressure vessel 11 in a rod hole 14 formed in the right wall of the pressure vessel 11, A press rod 23 having a press die 22 attached to the other end inside the container 11 is slidably inserted. In addition, the press die 22 includes
Like the press dies 16 and 19, a large number of steam holes 22A
Are formed, and steam is passed through each steam hole 22A during the steam treatment and is jetted to the collective raw material 5.

Further, in the interior of the pressure vessel 11, the press die 24 is fixedly installed, the set raw material 5 to be pressurized compressed is placed in such a press die 24 on the lower position You. Further, like the press dies 16, 19 and 22, the press dies 24 have a large number of steam holes 24.
A is formed, and steam is passed through each steam hole 24 </ b> A at the time of steam treatment and is injected to the collective raw material 5.

The inside of the press mold 19 can be slid vertically along the inner wall of the press mold 19 via a slide mechanism (not shown) and in the left and right direction together with the press mold 19. A slide press die 25 is provided. Also, inside the press die 22, a slide mechanism is used to extend vertically along the inner wall of the press die 22, and the press die 22. A slide press die 26 that can slide in the left-right direction is also provided. Each of the slide press dies 25 and 26 has a large number of steam holes 25, similarly to the press dies 16 and the like.
A and 26A are formed. Each of these slide press dies 25 and 26 performs an operation of holding the collective raw material 5 when the collective raw material 5 is placed on the press die 24.

Further, a large number of nozzles 27 (only two nozzles 27 are shown in FIG. 3) are provided along the longitudinal direction of the pressure vessel 11 above the left and right walls of the pressure vessel 11. From each nozzle 27, steam is sprayed onto the surface of the raw material assembly 5 during steam processing through a steam spraying device (not shown).

Here, each of the press cylinders 15, 18, 21 and the respective press rods 17, 2,
The pressure exerted on 0 and 23 is changed according to the compression rate of the raw material set 5, for example, 15 kg at a compression rate of 50%.
A pressure of about 10 kgf / cm ² is required at f / cm ² and a compression ratio of 30%.

It should be noted that each of the nozzles 27 is
The water vapor pressure of the water vapor injected from is set at 5 kgf / cm ² or more, and the heating temperature is 80 ° C. to 22 ° C.
It is set in the range of 0 ° C. The compression molding device 10
Is provided with a vacuum pump (not shown). The vacuum pump performs a deaeration process in the apparatus and the assembly raw material 5 as a pre-processing when forming the assembly material 1 from the assembly raw material 5. Used to do.

Next, using the compression molding apparatus 10 configured as described above, the assembled raw material 5 configured as described above is used.
A method of manufacturing the aggregate 1 from the following will be described. Here, it is assumed that before the pressing and compression, the press dies 16, 20, 22, and 24 are held in the state shown in FIG.

First, the assembly raw material 5 shown in FIG.
The stacked raw materials 5 are stacked and mounted on a press die 24, and hold the collective raw material 5 in cooperation with each slide press die 25, 26 (see FIG. 3). Thereafter, the pressure inside the pressure vessel 11 is reduced by operating the vacuum pump for 10 minutes. Thereby, the degassing process of the aggregate raw material 5 including each raw material 2 is performed. After the deaeration process is performed as described above, steam is injected from the steam injection device to the collective raw material 5 through each nozzle 27. The steam injected in this manner is applied to each of the press dies 16, 19, 22, 2
4 steam holes 16A, 19A, 22A and 24A, and the steam holes 25A and 26A of the respective slide press dies 25 and 26.
And is sprayed on the surface of the collective raw material 5. The steam treatment as the softening treatment is performed at 120 ° C. to 150 ° C. for 20 minutes.
Min. To 60 min., And each raw material 2 and the reinforcing wood 4 of the collective raw material 5 are softened during the steam treatment.

After each raw material 2 and reinforcing wood 4 have been softened as described above, the aggregate raw material 5 is subjected to a pressure compression step according to a compression ratio of 50%. In this pressurizing and compression step, first, the press rod 1 is moved through the upper press cylinder 15.
The pressing die 16 pressurizes and compresses the collective raw material 5 from above with a predetermined pressure. At this time, since each raw material 2 and reinforcing wood 4 in the collective raw material 5 are in a softened state, the press dies 16 are operated in cooperation with the press dies 19, 22, 24 and the slide press dies 25, 26. Compressed through The slide press dies 25 and 26 are moved downward in synchronization with the pressurized state of the press dies 16, and finally come into contact with the inner surfaces of the press dies 19 and 22. Then, when the press die 16 moves by a predetermined amount according to the compression ratio, the compression in the vertical direction ends and stops.

Next, in the left-right direction of the collective raw material 5 via the press cylinders 18 and 21, the press rods 20 and 23, the press dies 19 and 22, and the slide press dies 25 and 26. Is performed. Due to such pressurization and compression, the collective raw material 5 receives pressure from the left and right directions in FIG. 3 and is compression molded. Then, when each of the press dies 19 and 22 has moved by a predetermined amount according to the compression ratio of 50%, the pressurizing and compressing step is completed. As a result, the raw materials 2 and the reinforced wood 4 constituting the aggregate raw material 5 are compressed and assembled as shown in FIG.

Further, after the pressing and compressing step is completed, the fixing raw material 5 is subjected to a fixing process while being kept in the state shown in FIG. The fixing process is performed for each nozzle 27 in the same manner as described above.
By spraying water vapor onto the surface of the raw material assembly 5. By injecting the steam into the collective raw material 5 in this manner, each raw material 2 and the reinforced wood 4 are fixed so as to keep their shapes permanently. At this time, the conditions for performing the immobilization treatment are as follows: 160 ° C. to 180 ° C. for 20 minutes to 30 minutes.
It is desirable to be performed in minutes. After such a fixing process, the aggregate 1 is obtained.

In the aggregate 1 manufactured as described above, the slot 3 and the reinforcing wood 4 in each raw material 2 are in a state where they are biting each other. Thus, they are integrally connected and fixed via the respective slots 3 and the reinforcing lumber 4 to have sufficient strength. Further, in the aggregate of the first embodiment, no adhesive is used at all as in the conventional aggregate, and an adhesive for bonding the respective raw materials 2 to each other becomes unnecessary, and the adhesive is contained in the adhesive. Thus, the aggregate 1 having sufficient strength can be obtained safely and at low cost without impairing health and hygiene due to the organic solvent to be used. When actually used as pillars or beams in a house, or as a core material of a construction material, a decorative plate or the like may be attached to each of the four surfaces of the aggregated material 1.

Next, an assembly according to a second embodiment will be described with reference to FIGS. FIG. 5 is a perspective view of a collective material of the second embodiment, and FIG. 6 is a perspective view schematically showing a collective material obtained by combining a thinned material and reinforced wood.

In FIG. 5, the aggregate 30 is formed by compressing and assembling a plurality of thinned materials 31 (five in the aggregate 30 in FIG. 5) and connecting and fixing them. In each thinned material 31, a plurality of concave grooves 32 </ b> A are formed in the width direction so as to be alternated on both upper and lower surfaces of the thinned material 31 along a direction orthogonal to the length direction. Further, the respective thinned materials 31 are positioned and adjacent to each other so that the grooves 32A formed respectively are aligned with each other and one groove 32 is formed across each of the thinned materials 31. Further, in each of the grooves 32, a prism-shaped reinforcing wood 33 is inserted over the entire thinned material 31. Here, as the thinned wood, a thinned wood such as cedar and cypress which has been removed during the growth process is used.

Subsequently, the aggregate 1 constructed as described above
A manufacturing method for manufacturing the will be described with reference to FIG.
To manufacture the aggregate 30, first, as shown in FIG.
The grooves 32A formed in each of the thinned materials 31 are aligned (matched) with each other to form one groove 32 (four grooves 32 in FIG. 6).
Are formed, for example, five thinning materials 31 are arranged in three lower layers and two upper layers in two upper and lower stages. Next, reinforcing wood 33 is inserted into each groove 32. As a result, the aggregate raw material 34 shown in FIG. 6 is obtained. Next, the assembled raw material 34 configured as described above is arranged in the compression molding apparatus 10, and similarly to the above, softening treatment, compression molding, and
Perform immobilization processing. Thereby, the aggregate 30 is obtained. The softening process, compression molding, and fixing process performed in the compression molding apparatus 10 are referred to the description of the first embodiment, and the description is omitted here.

In the aggregate 30 manufactured as described above, the groove 32 and the reinforcing wood 33 in each of the thinning materials 31 are in a state of biting each other, and therefore, each of the thinning materials 31 is compression molded. At the time of completion, they are integrally connected and fixed via the concave grooves 32 and the reinforcing lumber 33 to have sufficient strength. Further, in the aggregate of the second embodiment, as in the case of the first embodiment, no adhesive is used at all as in the case of the conventional aggregate, and the adhesive for bonding the respective thinned materials 31 to each other is used. No agent is required, and the aggregate 30 having sufficient strength can be obtained safely and at low cost without impairing health and hygiene due to the organic solvent contained in the adhesive.

Next, an assembly according to a third embodiment will be described with reference to FIGS. Here, FIG.
FIG. 8 is a perspective view of the aggregate according to the embodiment, and FIG.
It is explanatory drawing which shows typically the collective raw material which interposes the thinning material which formed the dovetail-shaped groove. In FIG. 7, the aggregated material 40 is formed by compressing and assembling a plurality of thinned materials 41 (five in the aggregated material 40 of FIG. 7) and connecting and fixing them. One of the five thinning materials 41 arranged at the center of the thinning materials 41
Is formed in a substantially square shape, and a dovetail-shaped convex portion 42 is formed on four sides of the square shape. Further, the four thinning materials 41 arranged around the central thinning material 41 are formed into a square pillar as a whole including the central thinning material 41,
Each surrounding thinning material 41 has two dovetail-shaped grooves 4
3 are formed. And each dovetail-shaped convex part 42 in the central thinning material 41 and each one in each surrounding thinning material 41
The two dovetail-shaped grooves 43 are biting each other, and are also bitten between the surrounding thinning materials 41 via one dovetail-shaped groove 43.

Subsequently, the assembling material 4 configured as described above
0 will be described with reference to FIG. In order to manufacture the aggregated material 40, first, as shown in FIG. 8, a log-shaped thinned material 41 is arranged at the center,
Around each of the thinning materials 41, two dovetail-shaped grooves 4
The four thinning materials 41 forming No. 3 are arranged. At this time, at least one pigtail in each surrounding thinning material 41
The shape concave groove 43 is arranged so as to face the central thinning material 41. As a result, the aggregate raw material 44 shown in FIG. 8 is obtained. Next, the assembled raw material 44 configured as described above is placed in the compression molding apparatus 10, and softened in the same manner as described above.
Perform compression molding and fixing. Thereby, the aggregate 40 is obtained. The softening process, compression molding, and fixing process performed in the compression molding apparatus 10 are referred to the description of the first embodiment, and the description is omitted here.

In the assembled material 40 manufactured in this way, the central thinning material 41 and the surrounding thinning materials 41 are different from each other in that the dovetail-shaped convex portions 42 of the central thinning material 41 are each surrounding thinning materials 41.
Are cut and engaged with each other by being cut into each dovetail-shaped groove 43, and the surrounding thinning materials 41 are mutually connected by being cut through each dovetail-shaped groove 43. Since they are fixed, the respective thinned materials 41 are integrally connected and fixed to each other to reach a sufficient strength. Also, in the aggregate 40 of the third embodiment, as in the case of the first embodiment, no adhesive is used at all as in the conventional aggregate, and the thinning materials 41 are used to bind each other. The adhesive is not required, and the aggregate 40 having sufficient strength can be obtained safely and at low cost without impairing health and hygiene due to the organic solvent contained in the adhesive.

It should be noted that the present invention is not limited to the above-described embodiment, and various improvements and modifications can be made without departing from the spirit of the present invention. Here, the modifications described below are combinations or modifications of the first to third embodiments described above.
In the following description, the same members, elements, and the like in the first to third embodiments will be denoted by the same reference numerals.

For example, in the first embodiment, through the slots 3A formed in the plurality of raw materials 2, the slots 3 penetrating the raw materials 2 in the width direction are formed. A series of processes from the softening process to the fixing process are performed in a state where the reinforcing wood 4 is inserted into the lumber 4 to form the aggregate 1, and in the second embodiment, the length of each of the plurality of thinned materials 31 is set. Through a plurality of grooves 32A formed along a direction perpendicular to the direction, a groove 32 is formed in the width direction of each thinned material 31 and a reinforcing wood 33 is inserted into the groove 32. In this state, a series of processes from the softening process to the fixing process are performed to form the aggregate 30. However, each of the aggregate 1 in the first embodiment and the aggregate 30 in the second embodiment is formed. The advantages may be combined.

Here, a first modified example in which the first and second embodiments are combined will be described with reference to FIG.
FIG. 9 is an explanatory view schematically showing a first modified example. The first modified example has a structure in which two aggregated raw materials 5 in the first embodiment are disposed between
It can be obtained by performing various treatments such as softening treatment in the state where prismatic timber is interposed as reinforcement wood. That is, in FIG. 9, four raw materials 2 are combined and
(Not shown in FIG. 9), one of the collective raw materials 5 (the upper collective raw material 5 in FIG. 9) is fitted with two fitting grooves 5.
0 is formed, and two fitting grooves 50 are also formed in the other grouping raw material 5 (lower grouping raw material 5 in FIG. 9) having the same configuration. Further, a prism member 51 is fitted into each fitting groove 50 in each assembly raw material 5 as shown by an arrow. Then, in the state where the prism material 51 is fitted in each fitting groove 50 in this manner, by performing the softening process, the compression molding, and the fixing process using the compression molding device 10 in the same manner as described above, An aggregate is obtained.

In the aggregate obtained as described above, the effect of the first embodiment (the groove 3 in each raw material 2 and the reinforcing wood 4 penetrate each other, so that each raw material 2 Hole 3
The effect of the second embodiment (the effect of being integrally connected and fixed via the reinforcing lumber 4) and the effect of the second embodiment (the groove 32 and the reinforcing lumber 33 in each thinning material 31 bite into each other, so that each thinning material 3
1 mutually connected and fixed via the respective grooves 32 and the reinforcing woods 33) at the same time.

In the first modified example, instead of the collective raw material 5, two collective raw materials 34 of the second embodiment (see FIG. 6) are arranged vertically, and each of the upper collective raw materials 34 Thinning material 31
In the state where the prismatic material 51 is fitted between the lower concave groove 32A and the upper concave groove 32A of each thinned material 31 in the lower aggregated raw material 34, softening processing, compression molding, and fixing processing are performed. It is also possible to carry out by carrying out.

As a modification of the second embodiment, it is also possible to form the aggregated material only with the concave groove 32A formed in the thinned material 31 without using the reinforcing wood 33. Such a second modification will be described with reference to FIG. FIG. 10 is an explanatory diagram schematically showing a second modification,
For example, a groove 32A is formed at a predetermined interval in one of the two thinned materials 31 (the upper thinned material 31 in FIG. 10), and a pair of cuts 52 are formed with the same width as the width of the groove 32A. And similarly, the other thinned wood 31 (FIG. 10)
In the middle and lower thinning materials 31), grooves 32A are formed so as to be alternate with the respective grooves 32A in the upper thinning material 31, and a pair of <br> having the same width as the width of the groove 32A is formed. A notch 52 is formed. Then, in a state where these thinned materials 31 are arranged such that the cuts 52 are aligned with each other (coincidence), the compression molding apparatus 10 is formed in the same manner as described above.
By performing softening treatment, compression molding, and fixing treatment using the above, an aggregate material is obtained.

In the aggregate obtained in this way, the lower thinning material 31 is placed against the respective grooves 32A of the upper thinning material 31.
Portion (portion divided by each cut 52) cuts into the groove 32A of the lower thinned material 31 and the portion of the upper thinned material 31 (portion divided by each cut 52). Will penetrate. Therefore, each thinned wood 3
No. 1 can be integrally connected and fixed to each other without using an adhesive.

Further, as a modification of the third embodiment, instead of the central thinning material 41, a prism material having a dovetail-shaped groove formed on four sides is disposed, and four log-shaped thinning materials around the prism material are provided. You may comprise so that a material may be arrange | positioned. Such a third modification will be described with reference to FIG. FIG. 11 is an explanatory view schematically showing a third modified example. In the center, a prism material 54 having a dovetail-shaped concave groove 53 formed on four sides is arranged. , A log-shaped thinning material 41 is arranged. Then, in a state where these prism members 54 and the respective thinned materials 41 are arranged as shown in FIG.
By performing the softening treatment, the compression molding, and the fixing treatment using the compression molding device 10, an aggregate material is obtained.

In the aggregate obtained in this manner, a part of each thinned material 41 is cut into each dovetail-shaped groove 53 of the prism material 54, so that each thinned material 41 becomes a rectangular material 54. Can be connected and fixed to each other through the dovetail-shaped concave grooves 53 without using an adhesive.

[0052]

As described above, according to the present invention, when assembling a plurality of thinned materials, each of the thinned materials can be assembled with sufficient strength without using an adhesive. It is possible to provide a safe and low-cost aggregate material and a method for manufacturing the aggregate material, which do not impair health and safety by the organic solvent.

[Brief description of the drawings]

FIG. 1 is a perspective view of a collective material according to a first embodiment.

FIG. 2 is a perspective view schematically showing an aggregate raw material obtained by combining a raw material and reinforced wood.

FIG. 3 is a cross-sectional view showing a state in which the raw materials are located in a compression molding apparatus.

FIG. 4 is a cross-sectional view illustrating a state of the compression molding apparatus after the aggregate raw material is compression molded.

FIG. 5 is a perspective view of a collective material according to a second embodiment.

FIG. 6 is a perspective view schematically showing an aggregate material obtained by combining a thinned material and reinforced wood.

FIG. 7 is a perspective view of a collective according to a third embodiment.

FIG. 8 is an explanatory diagram schematically showing an aggregated raw material formed by interposing thinning materials having a dovetail-shaped groove formed along the length direction.

FIG. 9 is an explanatory diagram schematically showing a first modified example.

FIG. 10 is an explanatory diagram schematically showing a second modified example.

FIG. 11 is an explanatory view schematically showing a third modified example.

[Explanation of symbols]

REFERENCE SIGNS LIST 1 aggregated material 2 raw material 3 slot 4 reinforced wood 5 aggregated raw material 10 compression molding device 30 aggregated material 31 thinned material 32 concave groove 33 reinforced wood 34 aggregated raw material 40 aggregated material 41 thinned material 42 pigtail shape convex part 43 pigtail Groove 44 Assembly raw material

Continuation of the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) B27K 5/00 B27K 5/06 B27M 1/02 B27M 3/00

Claims (6)

(57) [Claims] 1. A softening process is performed in a state in which a plurality of woods having a plurality of dovetail-shaped grooves formed along a length direction are stacked around a log material, and thereafter, compressed at a predetermined compression ratio. An aggregate obtained by performing a molding and fixing treatment, wherein the log and each piece of wood are connected and fixed in a state of biting each other through a dovetail-shaped concave groove formed in each piece of wood. An assembly material wherein the woods are connected and fixed in a state of biting each other through dovetail-shaped concave grooves formed respectively. 2. A pigtail along the length of the log material
Laminating a plurality of wood groove shape are formed on each other, and performing softening treatment while laminating the log material and a plurality of timber, predetermined compression after the softening treatment Compression molding at the same rate, the logs and each wood are connected and fixed in a state of biting each other through the dovetail-shaped groove formed in each wood, and each wood is formed with a pigtail-shaped Connecting and fixing in a state of being engaged with each other via the concave groove, and performing a fixing treatment after the compression molding, and mutually engaging the log and each wood via the dovetail-shaped concave groove formed in each wood. And a step in which each piece of wood is engaged with each other through the dovetail-shaped groove to fix the pieces in a connected and fixed state. 3. A softening process is performed after a log material is placed on each side of a prism material having a dovetail-shaped groove formed on each of four sides.
An aggregate obtained by performing compression molding and fixing at a predetermined compression ratio, wherein each of the log materials is connected and fixed in a state of being cut into a dovetail-shaped groove on each side of the prism material. Aggregate material characterized by the following. 4. A groove is formed at a plurality of upper and lower locations in each of a plurality of woods in a direction intersecting with the length direction thereof and in a staggered manner on the upper and lower sides. A plurality of continuous grooves formed by aligning the upper groove and the lower groove of each piece of wood with each other are arranged in a staggered pattern on the upper and lower sides, and reinforced in each continuous groove. After performing the softening process in a state where the wood is inserted, it is an aggregate obtained by performing a compression molding and a fixing process at a predetermined compression ratio. A collective material characterized in that it is connected and fixed to each other in a state where it is bitten into the body. 5. A plurality of pieces of wood having slots and grooves formed in a direction intersecting with the length direction are laminated so that the slots and grooves are aligned, and reinforcing wood is inserted into each of the slots. After a plurality of stages of collective raw materials are arranged such that each groove faces each other, and a softening process is performed in a state where a column material is disposed in each groove between each collective raw material, a predetermined A composite material obtained by performing compression molding and fixing treatment at a compression ratio of: A raw material, wherein the raw material is connected and fixed to each other in a state where the concave groove and the column material are bitten. 6. A first width having a predetermined width in a direction intersecting with the length direction.
A first lumber in which a pair of first cuts are formed so as to have the same width as the concave groove and the first concave groove, and a first bite portion formed by the first cut is formed at a predetermined interval; A second digging portion and a second digging portion corresponding to the first digging portion divided by a pair of second cuts formed corresponding to the first groove of one piece of wood.
Each of the first grooves and the second bite are inserted into the second wood having the grooves.
After performing the softening process in a state where the first wood and the second wood are stacked on each other so that the only part corresponds and the first bite part corresponds to the second groove, a predetermined An aggregate obtained by performing compression molding and immobilization processing at a compression ratio, wherein a first bite portion of the first wood bites into a second groove, and a second bite portion of the second wood is a first bite . A collective material, wherein the first wood and the second wood are connected and fixed to each other in a state of being cut into the concave groove.