JP3466264B2 - How to make a kumiki puzzle - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an object having a predetermined shape such as a plurality of pieces of wood having various shapes and grain patterns. Regarding the assembled puzzle that is configured to be assembled, particularly, a desired assembled shape obtained through extremely simple processing without performing complicated processing such as cutting for each piece of wood constituting the assembled puzzle And a method of manufacturing the assembled puzzle. 2. Description of the Related Art Conventionally, there have been proposed various puzzles constructed by combining a plurality of pieces of wood so that an object having a predetermined shape can be assembled. When manufacturing such a puzzle, first determine the number of pieces of wood constituting the puzzle, then design dimensions, shapes, etc. of each of the pieces of wood, and then, It has been manufactured by cutting raw wood according to the size, shape, etc. of the wood pieces. [0003] However, in the above-mentioned conventional wooden puzzle, the production of the puzzle is as follows.
It is necessary to determine the number of each piece of wood constituting the assembled puzzle and design the size, shape, etc. of each piece of wood. If there is a mistake in the design work, it is impossible to assemble a product having a desired desired shape, and therefore, the design work for each piece of wood is extremely complicated and requires careful attention. Further, after each piece of wood is designed as described above, to obtain each piece of wood from the raw wood, it is necessary to precisely machine each piece of wood according to the designed dimensions, shape, etc. It is necessary to perform processing and the like. If the shaving work such as cutting is performed incorrectly, even if the design of each piece of wood is correctly performed, it is not possible to finally assemble a desired shape or the like. As a result, there is a problem in that the value as a knitting puzzle may not exist. Further, complicated three-dimensional machining is not possible by mechanical cutting or laser machining, and it is not possible to realize the fun of a free form. [0005] As described above, in the production of the conventional wooden puzzle, a complicated design work such as a size and a shape of each piece of wood constituting the wooden puzzle and an accurate cutting work to be performed according to the design are required. As a result, the characteristic of the bohemian design as natural wood cannot be brought out, and at the same time, there is a problem that the manufacturing cost of the assembled puzzle increases. SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems, and requires very simple processing without complicated design work for each piece of wood or shaving work from raw wood. It is possible to combine the freely deformed shapes and patterns of the pieces of wood that make up the knitted puzzle using the wood grain unique to each piece of wood, and to realize a variety of design effects as a whole, thereby reducing manufacturing costs. It is an object of the present invention to provide a puzzle with a low puzzle and a method of manufacturing the puzzle. [0007] manufacturing method set tree puzzle le according to the present invention to achieve the above object, according to an aspect of the heat treatment in a state filled with a plurality of pieces of wood with a variety of shapes and grain A first step of softening each piece of wood by performing the above, a second step of compression-molding the piece of wood into a predetermined shape in a state of being filled with each piece of softened wood, and a third step of performing a fixing process while maintaining the compression-molded state And a process. According to the manufacturing method of the present invention having the above-described structure, a heat treatment is performed in a state where a plurality of pieces of wood having various shapes and grain are filled, and each piece of wood is softened. Each of the softened pieces of wood is compression-molded into a predetermined shape in a filled state, and then subjected to a fixing process, whereby it is possible to manufacture a wooden puzzle. As described above, when manufacturing the assembled wood puzzle, complicated design work for designing the size, shape, and the like of each piece of wood, and cutting work for cutting each piece of wood from the raw wood are completely unnecessary. Accordingly, it is possible to manufacture a wooden puzzle by performing extremely simple processing on each piece of wood. Therefore, it is possible to remarkably reduce the manufacturing cost of the assembled puzzle. Also, each piece of wood has a unique grain, and each piece of wood is freely deformed into any shape while being integrated as a knitting puzzle. It is possible to embody a variety of design effects as a whole as a wooden puzzle. In addition, the aggregate of pieces of wood assembled in this way can be applied to a figurine as an object of art and craft. An embodiment of the present invention will be described below in detail with reference to the drawings. First, a tree puzzle according to the present embodiment will be described with reference to FIGS. FIG. 1 is a perspective view of a wooden puzzle, and FIG. 2 is a perspective view illustrating a piece of wood constituting the wooden puzzle. In FIG. 1, an assembled puzzle 1 is constructed so as to have a predetermined shape (in FIG. 1, a square pole shape) as a whole by assembling a plurality of pieces 2 of wood. Each piece of wood 2 consists of cedar, pine, cypress, fir, hiba,
It is formed from various raw material woods such as conifers such as hemlock and yew, broadleaf trees such as zelkova, mizunara, kusu, kiri, oak, beech, oak, and the like. Is filled in a predetermined shape (for example, a square shape as shown in FIG. 1), and is press-formed through the compression forming device 10, so that a unique shape and a grain pattern are obtained for each piece of wood 2. (See FIG. 2). As a result, the grain pattern appearing in the whole of the wooden puzzle 1 becomes extremely varied, and a unique design effect can be exhibited in the whole wooden puzzle 1. At this time, when each piece of wood 2 is formed from various kinds of raw wood, which part of the piece of wood is formed from each piece of wood, and each piece of wood 2 is formed in any shape and size. Wood piece 2
The grain pattern, grain direction, strength, hardness, etc. are different from each other. Further, when each piece of wood 2 is filled into a predetermined shape and formed under pressure (described later), each piece of wood 2 is determined based on the relationship between the shape, strength and the like of each piece of wood 2 depending on the filling state. Various changes occur in the deformation state of the wood piece 2. Accordingly, when each of the wood pieces 2 filled by the compression molding apparatus 10 is formed under pressure, each of the formation states of the wood pieces 2 from the raw wood and the press-formed state of the wood pieces 2 is generated. The grain pattern, strength, and the like of the wood piece 2 change, whereby the grain pattern appearing in the whole piece puzzle 1 is extremely varied, and every time the piece puzzle 1 is manufactured, a unique design effect as a whole is obtained. Is to be expressed. Next, a method of manufacturing the assembled wooden puzzle 1 having the above-described configuration will be described with reference to FIGS. The wood piece puzzle 1 is a wood piece forming step of forming a plurality of wood pieces 2 having a predetermined shape and size from raw wood, and is softened by performing a heat treatment in a state where the respective wood pieces 2 are filled with each other. It is manufactured through a process, a pressure compression step of compressing each softened piece of wood 2 into a predetermined shape, and a fixing processing step of performing a fixation process on each piece of wood 2 via heated steam or a heater. You. FIG. 3 shows each piece of wood 2 formed into a spherical shape from raw wood before pressure compression.
FIG. 4 is a cross-sectional view schematically showing the compression molding apparatus, FIG. 5 is a cross-sectional view schematically showing the state of the compression molding apparatus at the time when the pressing and compression step is completed, and FIG. 6 is a compression molding apparatus. FIG. 7 is a cross-sectional view showing a state in which the fixing process is performed via a heater arranged in FIG. First, a description will be given of a wood piece forming step of forming each wood piece 2 from raw wood. Each wood piece 2 is formed in a spherical shape as shown in FIG. 3 as an example. At this time, the wood pattern of each wood piece 2 changes depending on which part of the raw wood is formed, and the wood grain pattern becomes a unique pattern for each wood piece 2. Further, since the wood itself is an anisotropic material, the strength of each piece of wood 2 changes according to the change of the wood grain pattern. Therefore, when the wooden puzzle 1 is manufactured from each piece of wood 2 via the compression molding device 10,
The wood pattern and shape of each piece of wood 2 change variously depending on the state of filling in the press die, and the wood pattern appearing in the entire assembled wood puzzle 1 also changes in a variety of ways. There is no difference, and you can get all kinds of puzzles. Further, the size of each piece of wood 2 may be different from each other as shown in FIG.
Further, they may be formed in the same size. At this time, when each piece of wood 2 is formed to have the same size, the grain pattern appearing on the whole of the assembled puzzle 1 when the assembled puzzle 1 is manufactured via the compression molding apparatus 10 is relatively small. When the pieces of wood 2 have a uniform taste and the sizes of the respective pieces of wood 2 are variously different, the grain pattern appearing on the whole of the assembled wood puzzle 1 is different from the case of the same size and has an uneven fun. Is realized. When each piece of wood 2 is formed, for example, only from coniferous wood or only from hardwood, each piece of wood 2 has the same woody nature. When the braided puzzle 1 is manufactured, the whole braided puzzle 1 has a uniform feeling. On the other hand, in the case where the wood piece puzzle 1 is manufactured by appropriately mixing the wood pieces 2 formed from softwood and hardwood, the whole wood piece puzzle 1 is unevenly interesting due to differences in strength and hardness depending on the tree species. Can be realized. Since a method of forming each piece of wood 2 from raw wood is known, a description thereof is omitted here. Next, the softening step, the pressure compression step, and the fixing step will be described. Each of these steps is illustrated in FIG.
This is performed through a compression molding device shown in FIG. Thus, such a compression molding apparatus will be described with reference to FIG. Here, FIG. 4 is a sectional view schematically showing a compression molding apparatus.
In FIG. 4, the compression molding device 10 includes a pressure vessel 11 (long in a direction perpendicular to the paper) elongated in a tubular shape having a rectangular cross section.
The rod holes 12, 13,
14 are drilled. 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 each piece of wood 2 described below, the press rod 17 is moved downward via the press cylinder 15, and the press die 16 is moved along with the movement of the press rod 17. 2 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 steam hole 16A during a softening process and a fixing process, which will be described later, so that each of the wood pieces 2 arranged below is formed. Injected to. A press cylinder 18 is connected to one end 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. Similarly to the press die 16, the press die 19 is formed with a large number of steam holes 19A. Water vapor is passed through each of the steam holes 19A during the softening process and the fixing process, and each of the wood pieces 2 is formed. Injected to. 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
Is formed, and steam is passed through each steam hole 22 </ b> A during the softening process and the fixing process, and is sprayed onto each piece of wood 2. Further, inside the pressure vessel 11, a press die 24 is fixedly installed at a lower position, and a plurality of pieces of wood 2 to be pressed and compressed are placed on the press die 24.
Is placed. Further, like the press dies 16, 19, and 22, the press dies 24 are provided with a large number of steam holes 2.
4A is formed, and steam is passed through each steam hole 24A during the softening process and the fixing process, and is sprayed on each piece of wood 2. The inside of the press die 19 is slidable vertically along the inner wall of the press die 19 via a slide mechanism (not shown), and left and right along with the press die 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 the slide press dies 25 and 26 prevents each of the wood pieces 2 from collapsing when the press dies 24 are filled with the plurality of wood pieces 2, and the filling state of each of the wood pieces 2. Is performed. A number of nozzles 27 (only two nozzles 27 are shown in FIG. 4) 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, in the softening step and the fixing step, each of the press dies 19, 22, 24
Heated steam generated by a heated steam generator (not shown) is sprayed onto each piece of wood 2 held in a filled state by each slide press mold 25, 26. Here, the steam pressure of the steam injected from the nozzle 27 is set to 5 to 16 kgf / cm ² or more, and the heating temperature is set to a range of 130 ° C. to 200 ° C. Also, the press rods 17, 2
The pressure exerted on 0, 23 varies according to the compression ratio of each piece of wood 2, for example, 15 kg at a compression ratio of 50%
f / cm ² and 10 kgf / cm ² at a compression ratio of 30%. Next, using the compression molding apparatus 10 configured as described above, a softening step of softening a plurality of pieces of wood 2, a pressurizing and compressing step, and a fixing step are performed. Hereinafter, a method of manufacturing the assembled wood puzzle 1 will be described. Before performing the above-described steps, the press dies 16, 19, 22, and 24 are held in the state shown in FIG. , 22 and 24 have a plurality of pieces of wood 2
Are held in a filled state as shown in FIG. First, the step of softening each piece of wood 2 will be described. After filling the plurality of wood pieces 2 in the state shown in FIG. 4 as described above, the heated steam is supplied from each nozzle 27 through the steam holes 16A and the like formed in each press die 16 and the like. The temperature of the inside of the compression molding apparatus 10 is increased to 70 ° C. to 160 ° C. by the heated steam. It is preferably injected intermittently with a steam pressure of about 1 kgf / cm ² , and the temperature in the compression molding apparatus 10 is set to about 8
It is kept at 0 ° C. The heating time is set to about 6 hours. Thus, each piece of wood 2 is uniformly softened while the heated steam is being injected from each nozzle 27. At this time, each piece of wood 2 is held in the filling state shown in FIG. Subsequently, a pressure compression step is performed. In this pressurizing and compressing step, first, the press rod 17 is pressurized and moved via the upper press cylinder 15, whereby the press die 16 pressurizes and compresses each piece of wood 2 from above with a predetermined pressure. At this time, since each piece of wood 2 is in a softened state, it is compressed through the press dies 16 in cooperation with the press dies 19, 22, 24 and the slide press dies 25, 26. 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, the press die 16 ends the vertical compression at the time when it moves by a predetermined amount according to the compression ratio,
Stop. Next, the left and right sides of each piece of wood 2 are passed through 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 pressure and compression, each piece of wood 2 receives pressure from the left and right directions in FIG. 4 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, the pressurizing and compressing step is completed. Such an end state is shown in FIG. The time of the pressurizing and compressing step can be arbitrarily set as desired. By performing the compressing and compressing step for about 30 minutes, a predetermined pressurizing and compressing is performed on each piece of wood 2. Next, a fixing process is performed while each piece of wood 2 obtained as described above is kept in the pressurized and compressed state shown in FIG. The fixing process will be described. The fixing process is performed by injecting heated steam from each nozzle 27 to each piece of wood 2 while each piece of wood 2 is maintained in the state shown in FIG. The heated steam injected from each nozzle 27 in this manner is applied to each of the press dies 16, 19, 2
2, 24 steam holes 16A, 19A, 22A, 24A, and each slide press mold 25, 26 steam holes 25A,
It passes through 26A and is sprayed on each piece of wood 2. Thereby, the fixing process of each piece of wood 2 is performed, and each piece of wood 2 is fixed so as to keep its shape permanently. At this time, the temperature of the heated steam injected from each nozzle 27 into the pressure vessel 11 is 130 ° C. to 200 ° C.
160 ° C. to 180 ° C. is preferable, and the steam pressure is about 10 kg.
f / cm ² and the immobilization time are set to about 1 hour. As shown in FIG. 6, the fixing process as described above can also be performed by heating the inside of the compression molding apparatus 10 with heaters H disposed near the left and right side walls of the compression molding apparatus 10. Can do it. That is, as in FIG. 5, each of the heaters H is energized and heated while each piece of wood 2 is maintained in the state shown in FIG. 6, and the state in which the inside of the compression molding apparatus 10 is heated to a predetermined temperature is maintained for a predetermined time. Performs the fixing process of the aggregate. At this time, when the fixing process is performed, the heaters H are controlled so as to maintain the internal temperature of the compression molding apparatus 10 at 130 ° C. to 200 ° C., preferably 180 ° C. The processing time is set to 20 hours. After the fixing process as described above is completed, the assembled tree puzzle 1 described with reference to FIG. 1 is obtained. When the wood piece 2 thus manufactured is pressed through the compression molding apparatus 10, the state of formation of each wood piece 2 from the raw wood and the shape of the wood piece 2 The grain pattern, strength, and the like of each piece of wood 2 resulting from the pressing state change, whereby the grain pattern appearing in the whole piece puzzle 1 is extremely varied.
Each time is manufactured, a unique design effect is exhibited as a whole. As described above in detail, the assembled wood puzzle 1 according to the present embodiment is filled with a plurality of pieces of wood 2 in a predetermined shape in the compression molding apparatus 10 and heated through the nozzles 27. Is sprayed onto a piece of wood 2 to soften it, and is pressed and compressed into a predetermined shape by each press mold 16 or the like.
It can be manufactured by performing a fixing treatment with heated steam. This makes it possible to realize the braided puzzle 1 whose production cost is extremely low without performing the complicated design work and shaving work of each piece of wood, which is required for the production of the conventional braided puzzle. is there. Each piece of wood 2 constituting the puzzle 1
From each part of the raw wood, how to determine the size of each piece of wood 2, and what kind of raw wood each piece of wood 2 is to be formed. The woodgrain pattern and the strength are variously changed, whereby the woodgrain pattern and the shape of the whole assembled wood puzzle 1 are variously changed, thereby realizing various design effects as a whole of the assembled wood puzzle. can do. 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. For example, in the above-described embodiment, the shape of the assembled puzzle 1 is formed so as to be a square pillar, but the assembled shape of the assembled puzzle 1 is not limited to a square pillar.
For example, various shapes such as a donut shape and a heart shape can be set. In this case, the mold may be set so that the shape defined by the press dies 16 attached to the compression molding apparatus 10 becomes a donut shape or a heart shape.
It can also be applied to figurines as arts and crafts. In the above embodiment, the softening step is performed by injecting heated steam from the nozzle 27 provided in the compression molding apparatus 10 to each piece of wood 2. However, the softening step is limited to heated steam. Without immersion, each piece of wood 2 can be immersed in hot water or by using a high-frequency heating device. When softening each piece of wood 2 in hot water, the temperature of the hot water is preferably set to 60 ° C. or higher, preferably 90 ± 5 ° C. May be provided internally to perform temperature control. Further, the heating time of each piece of wood 2 requires about 6 hours. When softening each piece of wood 2 with a high frequency heating device, the frequency of the high frequency oscillated by the microwave oscillator attached to the high frequency heating device is 245.
The output is preferably set to 0 ± 50 MHz, and the output is preferably set to 600 W. Further, the time of the high-frequency induction heating performed by the microwave oscillator needs to be set to about one hour. As described above, the present invention can be obtained through extremely simple processing without performing complicated design work for each piece of wood or shaving work from raw wood. By utilizing the wood grain peculiar to a piece of wood, it is possible to embody a design effect with a variety of patterns and shapes as a whole, and to provide a low-cost building puzzle and a method of manufacturing the low-level puzzle. However, its industrial effects are great.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a knitting puzzle. FIG. 2 is a perspective view exemplifying a piece of wood that constitutes a wooden puzzle. FIG. 3 is a perspective view showing each piece of lumber before pressure compression processing formed into a spherical shape from raw wood. FIG. 4 is a sectional view schematically showing a compression molding apparatus. FIG. 5 is a cross-sectional view schematically showing a state of the compression molding apparatus at the time when the pressurizing and compressing step is completed. FIG. 6 is a cross-sectional view showing a state in which a fixing process is performed via a heater provided in the compression molding apparatus. [Description of Signs] 1 ... Knitting puzzle, 2 ... Wood pieces, 10 ... Compression molding device, 11 ... Pressurized container, 15, 18, 21, ...
・ Press cylinders, 16, 19, 22 ・ ・ ・ Press dies

──────────────────────────────────────────────────続 き Continued on the front page (58) Fields surveyed (Int. Cl. ⁷ , DB name) B27K 1/00-9/00 B27M 1/00-3/38 A63H 1/00-37/00

Claims (1)

(57) [Claims] [Claim 1] A plurality of plural shapes having various shapes and wood grain
Heat treatment is performed with the wood pieces filled, and each wood piece is
A first step of softening, and compression-forming into a predetermined shape with each piece of softened wood being filled.
A second step of shaping and a third step of performing a fixing process while maintaining a compression molding state
A method of manufacturing a knitting puzzle consisting of: