JP3049046B1 - Products using bamboo charcoal - Google Patents

Abstract

An object of the present invention is to provide a bamboo charcoal original shape reinforcing method capable of reinforcing bamboo charcoal in a simple manner and in a short time. SOLUTION: A sheet material 15 made of a synthetic resin sheet is wound around an outer peripheral surface of a bamboo charcoal body 12 having no knots, and a winding fixing member 16 such as an adhesive tape is further wound around an outer peripheral surface of the sheet material 15 to obtain a bamboo charcoal body. 12 is temporarily reinforced.
Next, the foamed urethane foam 17 is filled in the bamboo charcoal main body 12, and after the foamed urethane foam 17 expands and hardens, the winding fixing member 16 and the sheet material 15 are removed. Thereby, the bamboo charcoal main body 12 suppresses cracking irrespective of the influence of humidity and temperature change in the air, and cracked bamboo charcoal can be used as a processed material having sufficient strength.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a product using bamboo charcoal , in which bamboo charcoal obtained by firing and carbonizing raw bamboo has strength.

[0002]

2. Description of the Related Art Recently, placing charcoal indoors has become popular. It is said that charcoal has a deodorizing effect, and puts charcoal in a room to remove the smell of the room. In addition, bamboo charcoal is said to be more effective than charcoal as a deodorizing effect. In addition, it is said that far infrared rays and negative ions are radiated from the charcoal, which activates metabolism and is said to be effective in health. Charcoal is mainly used as a type of charcoal, but recently bamboo charcoal has gained popularity. This is because the surface of the bamboo charcoal has a beautiful texture, and when placed indoors, it also functions as an interior.

[0003] By the way, in the case of charcoal, since the inside is clogged, even if the surface is cracked, it will not be broken unless dropped. However, unlike bamboo charcoal, which has a hollow interior, bamboo charcoal has a hollow interior.
Even after baking, it is very susceptible to changes in humidity and temperature in the air, and cracks and cracks gradually progress.

Accordingly, as a method of reinforcing the original shape of bamboo charcoal, for example, Japanese Patent No. 2646199 (Japanese Patent Laid-Open No. 8-57)
816). The technique described in this publication is to penetrate a one-part cold cured resin diluted with an organic solvent into bamboo charcoal. It is mixed with a two-component mixture of a room temperature curable resin, and applied to the inner peripheral surface, upper end surface and lower end surface of bamboo charcoal with a predetermined thickness. Thereby, the strength as a material of bamboo charcoal is secured, and sufficient waterproofness is obtained.

[0005]

However, the reinforcing method of impregnating a bamboo charcoal fiber with a resin as described in the above-mentioned conventional example (Japanese Patent No. 2646199) does not sufficiently improve the texture and the like of the bamboo charcoal. In addition, there is a problem that it takes a very long time until the resin is cured, and the loss time in the manufacturing process increases. Also,
For example, when using bamboo charcoal vertically to fix it on the upper surface of a wooden or other base, the end face of the bamboo charcoal cut is ring-shaped, so you must apply an adhesive along the bamboo charcoal ring-shaped end face In addition, since the bonding area is small, it is necessary to apply the adhesive evenly. Therefore, there is a problem that workability is poor.

The present invention has been made in view of the above points, and has been made in consideration of the above circumstances.
The present invention also provides a product using bamboo charcoal in which the bamboo charcoal can be securely fixed to the base by using the bamboo charcoal vertically and fixing the bamboo charcoal to the base even when the bamboo charcoal is used vertically.

[0007]

[0008]

[0009]

[0010]

[0011]

SUMMARY OF THE INVENTION Therefore, according to the present invention, there are provided:
In the product using bamboo charcoal described in 1 , the partitioning plate 14 is inserted and disposed inside the bamboo charcoal main body 12 having the opening surfaces at both ends penetrated,
Temporary reinforcing members 15 and 16 are wound around the outer peripheral surface of the bamboo charcoal main body 12, filled with urethane foam 17 from one opening surface of the bamboo charcoal main body 12, and a non-filled portion of the urethane foam 17 is used as a water receiving portion 22, The inner surface of the water receiving portion 22 is coated with a resin 23 which is both waterproof and
4 and the bamboo charcoal body 1 on the opposite side of the water receiving portion 22
It is characterized in that the two sides are cut into a plane, and this cut surface is adhesively fixed to the base plate 21 to form the one-wheel drive 20.

With such a configuration, the combined area of the lower surface of the bamboo charcoal main body 12 and the lower surface of the urethane foam 17 can be used as the bonding area with the base plate 21, that is, the bonding is performed evenly along the periphery of the lower surface of the bamboo charcoal main body 12. Even if the agent is not applied, the portion including the lower surface of the urethane foam 17 may be roughly applied, so that the workability in the bonding step can be improved.

Further, the product using bamboo charcoal according to the second aspect is characterized in that the resin 23 and the fiber 24 are a two-part cold hardening resin 23 and a glass fiber 24. With such a configuration, the water receiving portion 22 of the one-piece vase 20 made of the material made of bamboo charcoal can be formed by the two-part cold curing resin 23 and the glass fiber 24 for both waterproofing and reinforcement. The present invention can be applied as a single-sided vase 20 and, despite the single-sided vase 20, can express the good texture of bamboo charcoal and can provide a single-sided vase 20 that has not existed before.

[0014]

Embodiments of the present invention will be described below in detail with reference to the drawings. There are various types of bamboo. In the present invention, a case where a winding bamboo called "Kameko bamboo" is used will be described. Of course, the present invention can be applied not only to the turtle bamboo but also to the case where a straight bamboo is used.

FIG. 1A is a perspective view of a bamboo carbon material 10 manufactured by baking bamboo having a predetermined length, and a method for reinforcing the bamboo carbon material 10 in its original shape and a single wheel using the bamboo carbon material 10 are shown. A method of processing the insert will be described. The bamboo carbon material 10 is cut by a saw 11 into an appropriate length corresponding to a single vase to form a bamboo charcoal main body 12. Next, as shown in FIG. 1B, all the nodes in the bamboo charcoal main body 12 are deleted using a tool 13. When removing this section, any type of tool 13 may be used, but in the present embodiment, for example, a file is used. Thus, a bamboo charcoal main body 12 having a hollow inside and penetrating both end surfaces is formed.

Next, since the bamboo charcoal main body 12 forms a single vase, it is necessary to provide a partition plate 14 for the bottom of the water receiving portion. Then, as shown in FIG. 1C, for example, a partition plate 14 formed in a substantially circular shape by cardboard or the like is inserted into the bamboo charcoal main body 12. In this case, an adhesive is applied to the peripheral surface of the middle partition plate 14, and the middle partition plate 14 is inserted into the bamboo charcoal main body 12 to a position of a predetermined size, and the middle partition plate 1
4 is attached to the inner peripheral surface of the bamboo charcoal main body 12. The shape of the partitioning plate 14 is adapted to the cross-sectional shape of the bamboo charcoal main body 12. In addition, the partition plate 14
Is cardboard, but thick paper or hard paper other than cardboard may be used. This is so-called stiff paper. In addition, in order to match the shape of the inner peripheral surface of the bamboo charcoal main body 12, the middle partition plate 14 is preferably made of paper from the viewpoint of easy cutting. However, the material is not limited to hard paper, but may be wooden, and other materials may be used.

Next, since the inside of the bamboo charcoal body 12 is filled with urethane foam for reinforcing the original form, the urethane foam itself expands at the time of filling the urethane foam, so that the bamboo charcoal body 12 is cracked. Crack or crack. Therefore, as shown in FIG. 2A, before filling the foamed urethane foam into the bamboo charcoal main body 12, a sheet material (for example, a sheet made of a synthetic resin) 15 is wound around the entire outer peripheral surface of the bamboo charcoal main body 12. Furthermore, a winding fixing member (for example, an adhesive tape) 16 is wound around the outer peripheral surface of the sheet material 15 to temporarily reinforce the outer peripheral surface of the bamboo charcoal main body 12 to prevent expansion damage when filling the urethane foam.

Then, as shown in FIG. 2B, the bamboo charcoal body 1 on which the sheet material 15 and the winding fixing member 16 are wound.
2 is placed on the upper surface of the work table or the like, and the urethane foam 17 is filled from the opening on the upper surface. In addition, bamboo charcoal body 1
The inside partition plate 14 is provided in the inside 2, so that the urethane foam 17 to be filled is filled in the hollow portion opposite to the water receiving portion side in the case where the middle partition plate 14 and one wheel are inserted. Become. This urethane foam 17 is
Two-component rigid foamed urethane foam is a preferred example. After filling the stock solution of the urethane foam 17 into the bamboo charcoal main body 12, the urethane foam 17 expands and hardens after a while. This curing time is in minutes,
The time required for the next operation is reduced. After the urethane foam 17 has hardened, the winding fixing member 16 wound around the bamboo charcoal main body 12 and the sheet material 15 are removed.

Next, as shown in FIG. 3, since the urethane foam 17 expands, the portion of the urethane foam 17 protruding from the end face of the bamboo charcoal main body 12 is cut with the saw 11. The cut portion may be formed by cutting only the urethane foam 17 so as to be flush with the end face of the bamboo charcoal main body 12, or may be cut including the end of the bamboo charcoal main body 12. As shown in FIG. 4, the bamboo charcoal body 12 filled with the urethane foam 17 is
When used as 0, the upper surface shown in FIG.
The surface may be adhered to the surface, so the cut surface may be flattened or polished smoothly.

As described above, bamboo charcoal, which may be cracked little by little due to the influence of humidity and temperature in the air even after baking, cannot be used as it is as a processing material. By filling the inside of the foam 17, the outer peripheral surface of the urethane foam 17 and the inner peripheral surface of the bamboo charcoal main body 12 come into close contact with each other. Thereby, the bamboo charcoal main body 12 is prevented from cracking despite being affected by humidity and temperature changes in the air, and the cracked bamboo charcoal can be used as a processed material having sufficient strength. In addition, even a winding material such as turtle bamboo can be used as a rare value material by filling the urethane foam 17 as long as the knots are removed.

Further, the conventional reinforcing method of impregnating the resin of the bamboo charcoal with the resin cannot fully utilize the good texture of the bamboo charcoal, but the reinforcing method of impregnating the fiber of the bamboo charcoal with nothing as in the present invention. , You can take advantage of the good texture of bamboo charcoal. Further, in the conventional reinforcing method of impregnating the resin of the bamboo charcoal with the resin, a curing time (about 15 hours) of the resin is required as appropriate, but in the method of filling the urethane foam 17 as in the present invention, the minute unit is used. The next work process can be performed with the waiting time, and the time until the completion of the product (for example, the one-wheel vault 20) can be shortened.

As described above, by reinforcing the foam urethane foam 17 to suppress the expansion force at the time of foaming by the sheet material 15 and the winding fixing member 16 as in the present invention,
Bamboo charcoal does not crack. Further, if the urethane foam 17 is cured after foaming, the expansion coefficient (length direction of the bamboo charcoal body 12) is 0.4% even under the condition of temperature: 50 ° C., humidity: 95%, and left for 48 hours. And almost no effect is seen. At a low temperature, the expansion coefficient is 0%, which shows no effect.

Next, a case where the bamboo charcoal main body 12 formed as described above is manufactured as a one-wheel vault 20 will be described. Wood of an appropriate size is sliced to form a base plate 21 as shown in FIG.
The second water receiving part 22 is fixed upward with the water receiving part 22 facing upward. FIG. 5 is an enlarged cross-sectional view of a main part showing a part of the water receiving part 22 of the one-sided vase 20. The inner surface of the water receiving part 22 is made of a two-part cold-setting resin (for example, epoxy resin) 23 and Waterproofing and reinforcement processing are performed at 24 mm (about 1 mm).

That is, the bamboo charcoal main body 1 serving as the water receiving portion 22
2, a two-part cold-setting resin 23 is applied to the inner peripheral surface,
Two-part cold curing resin 2 on glass fiber 24 of appropriate size
3 and a mixture of the glass fiber 24 and the two-component cold-setting resin 23 is applied several times to the entire inner surface of the bamboo charcoal body 12 and laminated. Then, in each case of laminating, in order to eliminate air contained in the attached glass fiber 24, the glass fiber 24 is sufficiently depressed with a brush or the like to remove bubbles. After the curing, the glass fiber 24 protruding from the upper portion is scraped off, and a two-part cold curing resin 23 is applied to the inner surface of the water receiving portion 22 and the upper end surface of the bamboo charcoal main body 12.

Thus, the water receiving portion 22 can be waterproofed and reinforced, and the inner surface of the water receiving portion 22 including the upper end surface of the bamboo charcoal main body 12 has a two-component cold-setting resin (epoxy resin) 23. Is applied, so that it has a smooth surface that does not injure you even if you touch it.

The water-receiving section 22 may be waterproofed and reinforced by the two-part cold-setting resin 23 and the glass fiber 24 before or after the adhesive is fixed to the base plate 21.

Here, the bamboo charcoal main body 12 is set upright,
In the conventional method of impregnating the bamboo charcoal fiber with the resin, the cut (cut surface) of the bamboo charcoal main body 12 has a ring shape, so it is necessary to apply the adhesive evenly in a ring shape. Therefore, workability in the bonding process was poor. There is also a problem that only the lower surface of the bamboo charcoal main body 12 itself can be used as an adhesive area. However, in the method of the present invention in which the inside of the bamboo charcoal body 12 is filled with the urethane foam 17, the entire bottom surface of the bamboo charcoal body 12 having the area of the lower surface and the area of the bottom surface of the foam urethane foam 17 is bonded to the base plate 21. It can be used as an area. Therefore, it is not necessary to apply the adhesive along the periphery of the bamboo charcoal main body 12, and the adhesive may be roughly applied to the lower surface of the urethane foam 17, thereby improving the workability in the bonding process. Further, since the bonding area is circular, the bamboo charcoal main body 12 can be more securely bonded and fixed to the base plate 21 even when the bamboo charcoal main body 12 is bonded and fixed to the base plate 21.

In the above embodiment, a description has been given of a bamboo (for example, turtle bamboo) in which the interval between nodes is relatively small.
If there is no knot in the bamboo charcoal, and it is not applied to a single vase, and if it is simply manufactured as bamboo charcoal, it is shown in FIGS. 1 (a), 2 and 3.
Only the process of Of course, if there is no relation to the length of the bamboo charcoal, only the steps of FIGS. Further, by considering the volume of the expanded portion of the foamed urethane foam 17 in advance, and after filling the bamboo charcoal main body 12, the upper and lower sides of the foamed urethane foam 17 are brought to the upper and lower surfaces of the bamboo charcoal main body 12, and thus, as shown in FIG. The process can be omitted.

The bamboo charcoal main body 12 has a partition plate 1 inside.
When not provided, it is needless to say that although not shown, the opening surface of the lower surface of the bamboo charcoal main body 12 is closed by some means.

The sheet material 1 is used as a temporary reinforcing member when filling the foamed urethane foam 17 into the bamboo charcoal main body 12.
Reference numeral 5 denotes a sheet made of a synthetic resin (a sheet made of a synthetic resin such as polypropylene, polyester, or vinyl), and the wrapping fixing member 16 uses an adhesive tape, but is not limited thereto. As the sheet material 15, any of paper, a sheet of nonwoven fabric or the like, a cloth, or the like may be used.
In addition, as a material of the sheet material 15, the above-mentioned sheet made of a synthetic resin is a preferable example. The winding fixing member 16
As a sheet material 1 such as a bandage-like material or a band-like fabric.
Any member may be used as long as the member 5 can be securely wound and fixed. Further, the bamboo charcoal main body 12 may be temporarily reinforced by either the sheet material 15 or the winding fixing member 16.

In the above description, the bamboo charcoal main body 12 formed by the bamboo charcoal original shape reinforcing method is applied to the case of a single vase 20. However, the present invention is not limited to the single vase 20 and is applicable to any product. May be applied.

[0032]

[0033]

[0034]

According to the product using the bamboo charcoal of the present invention, when the bamboo charcoal is fixed to the base by using the bamboo charcoal vertically, such as when making a vase, the conventional reinforcing method of impregnating the fiber of the bamboo charcoal with the resin, Although only the ring-shaped area of the cut of bamboo charcoal can be used, in the reinforcing method of filling foamed urethane foam into bamboo charcoal, since the foamed urethane foam is located up to the bottom of the bamboo charcoal, the entire bottom surface of bamboo charcoal and urethane foam is It can be used as an adhesive area, and the adhesive may be roughly applied instead of applying the adhesive along the periphery of the bamboo charcoal as in the related art, and the workability in the adhesive process can be improved. In addition, since the entire bottom surface of the bamboo charcoal and the urethane foam can be used as the bonding area, the bamboo charcoal can be securely fixed to the base.

[Brief description of the drawings]

FIG. 1 (a) is a view showing a step of cutting bamboo charcoal into a predetermined length in the bamboo charcoal prototype reinforcing method according to the embodiment of the present invention. (B) is a figure which shows the process of removing the node inside bamboo charcoal in the bamboo charcoal prototype reinforcement method of embodiment of this invention. (C) is a figure which shows the process of arrange | positioning the partition board in bamboo charcoal in the case of forming a one-wheel vault in the bamboo charcoal prototype reinforcement method of embodiment of this invention.

FIG. 2 (a) is a view showing a step of winding a sheet material and a winding fixing member around the outer periphery of bamboo charcoal according to the embodiment of the present invention. (B) is a figure which shows the process of filling a foaming urethane foam in the bamboo charcoal of embodiment of this invention.

FIG. 3 is a view showing a step of forming a flat adhesive surface by cutting an expanded protruding portion of the urethane foam according to the embodiment of the present invention.

FIG. 4 is a perspective view of a one-wheeled vehicle formed by bonding and fixing bamboo charcoal according to the embodiment of the present invention to a base plate.

FIG. 5 is an enlarged cross-sectional view of a main part of the water receiving portion of the one-piece vault according to the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 12 Bamboo charcoal main body 14 Middle partition plate 15 Sheet material 16 Winding fixing member 17 Polyurethane foam 20 One-wheel insertion 21 Base plate 22 Water receiving part 23 Two-part cold curing resin 24 Glass fiber

Continuation of the front page (56) References JP-A-8-57816 (JP, A) JP-A-2-266901 (JP, A) Japanese Utility Model Showa 49-8572 (JP, U) (58) Fields investigated (Int) .Cl. ⁷ , DB name) B27K 9/00 B27M 3/00-3/24 B27J 1/00

Claims (2)

(57) [Claims] 1. A bamboo charcoal body (12) having openings at both ends penetrating therethrough.
A partition plate (14) is inserted and arranged in the inside of the bamboo charcoal, and the temporary reinforcing members (15) and (16) are wound around the outer peripheral surface of the bamboo charcoal main body (12), and foamed from one opening surface of the bamboo charcoal main body (12). The non-filled portion of the urethane foam (17) is filled with a urethane foam (17) to form a water receiving portion (22), and an inner surface of the water receiving portion (22) is provided with a resin (2) having both waterproofness and reinforcement.
3) is applied, fibers (24) are laminated, and the bamboo charcoal body (12) side opposite to the water receiving portion (22) is cut into a plane, and the cut surface is applied to the base plate (21). A product using bamboo charcoal, which is bonded and fixed to form a one-wheeled vase (20). Wherein said resin (23) and fibers (24) includes a two-part room temperature curable resin (23) was used bamboo charcoal according to claim 1, characterized in that the glass fiber (24) Product .