JPH11147205A - Removal of joint of bamboo material, wood axial direction boring device and high performance bamboo material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce efficiently joints of a continuous bamboo material by fixing a stopper on one end of a horizontal direction guide rail of specified length and providing a movable blade with a blade rotating shaft structure movable along the guide rail on the opposite side of the stopper of the guide rail. SOLUTION: An end press plate 2 for fixing a material to be processed is provided on a guide rail 1 of at least 9 m length, and an elastic body 3 is stuck on an inner face of a holding frame 4, and when a handle 5 is rotated in the hand direction of a clock, the holding frame 4 is closed, while when the handle is rotated in the counterclockwise hand direction, the holding frame is closed. A fixing plate 6 of the rotating shaft of a plate for cutting and removing bamboo joints is fixed on the guide rail 1, and movable plates 7 and 9 sliding on the guide rail 1 while supporting the rotating shaft are provided. An easily recognizable red mask is formed on the position of the plate on the end of the rotating shaft 8 on a chain belt driving the movable plate 9 so that the location of the blade moved onto the bamboo material during the work of removing the joints can be recognized.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus used for pretreatment when bamboo and wood are heated and dried with incomplete combustion gas or flame, and a bamboo or wood treated using the apparatus. .

[0002]

2. Description of the Related Art In Japan, bamboo is widely and widely used and is widely used for crafts and household goods.
Wood is also widely used for building supplies such as floors and pillars. By the way, since bamboo and wood can be difficult to use as they are in terms of weight or long-term use, they can be dried before use to reduce their weight, or exposed to relatively high-temperature smoke to impregnate their components. It is also attempted to prevent corrosion and prevent insect pests by forming a thin film of smoke.

[0003] In addition, they are also exposed to smoke and soot in order to bring out their beauty as arts and decorations, such as being used for various tools in tea ceremonies and decoration of tea rooms. Various techniques have been developed for exposing bamboo and wood to smoke and the like in order to reduce the weight, extend the service life, and provide a decorative effect as a work of art.

[0004] For example, bamboo materials have been used to make bamboo bamboo by placing them on the hearth. Techniques for making medium bamboo by more positive exposure include, for example,
No.-7161, "Manufacture of bamboo bamboo which is kept in a temperature range of 100 ° C. to 140 ° C. for 40 hours or more by contacting bamboo with incomplete combustion gas of vegetable material and then cooled to room temperature over 20 hours or more A "method" is disclosed.

It is well known that natural drying has been adopted for woods since ancient times. In addition, natural drying requires that wood be laid under the sun for a long period of 3 to 5 years, so that the turnover efficiency of funds becomes poor, and during that time it is necessary to take measures such as prevention of the occurrence of pests. In recent years, vacuum drying and hot air drying have also been adopted. Furthermore, in Japanese Patent Application Laid-Open No. 148184/1992, in a closed wood storage room,
A technique has been disclosed in which wood and the like are dried by using combustion air and combustion gas to further reduce the weight of bamboo materials for crafts and the like.

Next, based on recent thoughts of returning to nature,
Attempts have been made to use bamboo and wood widely in buildings instead of concrete while maintaining their natural beauty. For example, pillars in a gazebo such as a park. In this case, it is often necessary not only to extend the life but also to improve the strength. However, as for the technology for this purpose, no particularly effective technology has been developed.

[0007]

The bamboo material is dried by heating.
If you just put it in a furnace at 0 ° C, the air between the nodes of the bamboo material will expand rapidly and break the outer skin of the bamboo material,
In addition, when it deteriorates, it often explodes and cracks often occur on the outer skin. Cracked ones are all defective if they are used for artistic purposes such as bamboo fences. Therefore, it is necessary to remove (including, simply, make small holes) the nodes of the bamboo as a pretreatment for heating.

Hereinafter, the contents of this processing will be described with reference to FIG. This diagram is a diagram conceptually showing a conventional node removing method. In this figure, 31 is a cross section of the bamboo material, and 32 is a node. Reference numeral 33 denotes an iron bar that breaks and removes a node, and its tip is formed in an acute taper shape. The length of the iron bar is greater than the distance between the nodes and is 50 cm or more.

Next, a concrete method of removing a knot using this iron bar is as follows. The first knot is crushed with an iron bar, and after the second knot, bamboo is laid on the floor surface 34 in the direction indicated by the arrow 35. , The node portion is damaged by the weight of the iron bar 33 and the impact force, and finally penetrates. However, in the conventional method of removing a knot of a bamboo material, the length of the bamboo material is at most 3 m due to workability and safety problems, and also restrictions due to the height of the building. For this reason,
For example, this method cannot be used for bamboo materials that require a longer length, such as those used for holding nets for cultivating laver in the Ariake Sea, where the tide difference is 5 m or more.

However, using expensive equipment, for example, is not only cost-effective, but in the case of long bamboo materials, each one is slightly bent because it is a natural object. Since the degree of bending is different for each line, it is not always effective unless this correction (compensation) mechanism is provided. For this reason, it has been desired to develop an inexpensive and easy technique and apparatus that can efficiently remove knots from long bamboo materials.

Next, as for wood, the thermal expansion coefficient of the central portion of wood (the center of the annual ring) and the outer peripheral portion of the wood are almost the same, and unless the inner and outer circumferences are heated and cooled under the same temperature conditions, the wood is used. Cracks will occur around it. That is,
For example, when cooling after heating and drying, the inside remains high temperature,
If only the outside is cooled, the outside receives a tensile force, and wood that is relatively weak in tension will crack outside. In addition, this is to prevent deformation due to temperature and humidity after construction by making a groove on the center part of the pillar, that is, the core part, on one of the four faces used for pillars when building a house As you can see, well-known facts,
It is a phenomenon.

However, as for wood, in fact, no effective means has been applied to the generation of cracks during heating and drying. For this reason, it is desired to develop an effective technique for preventing cracking of wood even during heating and drying.

Next, instead of simply attaching thin wood to concrete or impregnating a corrosion-resistant material to extend the life, it is necessary to maintain the beauty and naturalness of the appearance of bamboo and wood as they are. There is also a demand to further improve the strength and performance, but no effective means or technology has been found for this, and its realization and development are desired.

[0014]

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has the following features. According to the first aspect of the present invention, there is provided a device for removing a knot of a bamboo material and an axial hole drilling process for wood, which are characterized by the following technical matters. (1) a horizontal guide rail having a length of at least 9 m, (2) a stopper fixedly provided at one end of the guide rail, and (3) a half of the side of the guide rail where the stopper exists. Within the range, it is fixed to the guide rail at the time of processing such as drilling or centering prior to the hole to fix the material to be processed while absorbing the difference in thickness and bending in the axial direction of the material to be processed. At least two workpiece fixing mechanisms provided so as to have an opening / closing mechanism for mounting and removing the workpiece,

(4) On the side opposite to the stopper of the guide rail, removal of a node of the workpiece to be movable along the guide rail and fixed by the workpiece fixing mechanism, axial hole A moving plate with a blade rotating shaft mechanism equipped with a rotating shaft having a cutting tool attached to the tip at the tip thereof, and further having a shaft axis adjusted with the material to be processed, and a drive motor for the rotating shaft, (5)
A rotary bearing is provided between the workpiece fixing mechanism on the guide rail and the moving plate with the blade rotary shaft mechanism, and supports the rotary shaft, and moves the blade on the guide rail toward the stopper. At least one (but plural if long) rotating shaft holding member movable along the guide rail,

(6) In order to move the moving plate with the blade rotary shaft mechanism in the direction of the stopper on the guide rail, when removing the knot of the bamboo material (including simply making a small hole) and making the hole in the axial direction of the wood, (7) a motor with a chain gear mechanism, which is fixedly provided on the stopper side of the guide rail, and (7) one end of which is fixed to a lower portion of the movable plate with the blade rotating shaft mechanism, which powers the motor with the chain gear mechanism. A chain for moving the movable plate with the blade rotating shaft mechanism to the stopper side along the guide rail as a source,

(8) One end is fixed to the end of the moving plate having the blade rotating shaft mechanism of the chain, and the other end is fixed to the opposite side of the guide rail from the stopper, and the guide rail of the moving plate having the blade rotating shaft mechanism of the chain is provided. A chain bending prevention and contraction absorption mechanism for absorbing the bending caused by the pulling toward the stopper above, and (9) a blade position visual confirmation mechanism for visually confirming the position of the blade.

According to the above configuration, the knot removal of the bamboo material of the present invention,
The following operations are performed in the axial drilling device for wood. A horizontal guide rail at least 9m long is
A long bamboo or wood material to be processed (work material) having a length that is nearly half that, and 1.5 times the length of 3 m, which is a length that allows knot removal of bamboo by the current technology. And fix
Also serves as a base for cutting tools. A stopper fixedly provided at one end of the guide rail absorbs a compressive force applied to the rail from a cutting tool or the like in a direction parallel to the rail during processing (processing) such as removal of a node.

In the range of the side half where the stopper of the guide rail exists, the guide rail is provided so as to be fixed to the guide rail during processing (including movement in the guide rail direction from the beginning). At least two workpiece fixing mechanisms having open / close mechanisms are used to change the thickness of the bamboo or the like in the axial direction by, for example, changing the thickness of rubber that is wound and attached as a part of each fixing mechanism. Absorbing, and also by the action of the opening and closing mechanism, absorbs even a slight bending of each material to be treated, especially bamboo, and also reduces the material to be treated in a state where the surface of the material to be treated is not damaged. During processing, such as removal by cutting and axial drilling. Then, prior to the removal of the knot of the bamboo material, fixing and opening after the removal are performed by the opening and closing mechanism under the operation of the handle of the operator.

A cutting tool is provided on the opposite side of the stopper of the guide rail so as to be movable along the guide rail, and a cutting tool for removing the node of the material to be processed and making a hole is attached to the tip. The moving plate with a rotating shaft mechanism equipped with a rotating shaft whose axis is adjusted and a motor for driving the rotating shaft has a cutting tool and a rotating shaft inserted into the workpiece fixed to the workpiece fixing machine. In order to move the blade, the tool is moved on the guide rail toward the stopper while the blade is rotated by a motor.

[0021] A rotary bearing is provided between the workpiece fixing mechanism on the guide rail and the movable plate with the blade rotary shaft mechanism, and supports the rotary shaft. At least one rotating shaft holding member movable along the guide rail as it moves to the stopper side for removal or the like (although not necessarily simultaneously parallel) holds the rotating shaft so as not to bend. At the same time, it moves to the stopper side while being pushed by the moving plate with the blade rotating shaft mechanism as the processing such as drilling proceeds.

A motor with a chain gear mechanism, which is fixed to the stopper side of the guide rail and is reversible, moves the movable plate with the blade rotary shaft mechanism along the stopper direction on the guide rail. As a result, the cutting tool and the rotating shaft are cut into the material to be processed such as bamboo. After the work is completed, the motor rotates in the reverse direction, and the chain is rewound while extending and retracting a stretch-absorbing mechanism for preventing chain deflection described later.

One end of the chain is fixed to the lower part of the moving plate with the blade rotating shaft mechanism, whereby the moving plate with the rotating shaft mechanism is moved along the guide rail by using the motor with the chain gear mechanism as a power source. Pull to the stopper side to move to the stopper side.

The extension / absorption mechanism for preventing bending of the chain, which is composed of a helical spring or the like, has one end fixed to the end of the chain on the side of the moving plate having the blade-shaft rotating shaft mechanism, and the other end connected to the guide in an extended state. The rail is fixed to the opposite side of the stopper. Then, the chain is shrunk in order to prevent bending caused by pulling of the moving plate with the blade rotating shaft mechanism to the stopper side on the guide rail, thereby absorbing the bending and thereby preventing the chain from coming off the gear. To prevent. After the work is completed, the work is extended by a motor with a chain gear mechanism to prepare for the next processing of the material to be processed.

In the blade position visual confirmation mechanism, the material to be processed is wood, not metal, and it is difficult to confirm and detect the end of cutting or the like due to fluctuations in the motor load. In particular, bamboo has portions with and without nodes. Therefore, the position of the tip of the cutting tool is directly or temporarily converted into an electric signal and then displayed indirectly so that the operator can visually confirm the position.

According to the second aspect of the present invention, the first aspect is provided.
The cutting tool in the described invention has a cutting edge with a tapered tip at an acute angle, and a cutting edge with a similar taper on the back surface,
The maximum diameter of the rotating shaft is smaller than the maximum diameter of the cutting tool, and preferably about 3 to 5 mm.

With the above construction, it is easy to insert the rotary shaft of the cutting tool into the node while compressing and removing the node after the removal of the node when cutting and removing the node of the bamboo material, and to prevent the rotary shaft of the cutting tool from hanging downward. Is also made in the hollow nodes of the material to be treated.

[0028] According to the third aspect of the present invention, the first aspect is provided.
The cutting tool according to the described invention has a tip used for machining or a drill used for drilling with a woodworking tool, that is, a screw-shaped portion for fixing a hole path and a required diameter behind the screw-shaped portion, and discharge of chips. A drill having a groove, wherein the rotating shaft has a maximum diameter smaller than a maximum diameter of the cutting tool.

According to the above-mentioned structure, it is easy to insert while compressing the hole in the axial direction of the rotary shaft of the cutting tool at the time of cutting for making a small hole in wood, and to easily pull out the hole after the hole is made.
Also, at this time, the tip of the cutting tool is somewhat supported by the wood, so that the downward bending of the rotating shaft is reduced.

According to the fourth aspect of the present invention, the moving plate with the blade rotary shaft mechanism is capable of replacing a blade tool attached to the tip of the rotary shaft in accordance with the type of material to be processed and the content of processing such as the diameter of a hole. have. According to the above configuration, depending on the type of the material to be processed such as bamboo, wood, cedar and oak, and the content of the processing such as the diameter of the hole, the optimal cutting tool at the tip of the rotating shaft is, for example, a light screw or bolt or hollow. Installed using cylindrical fasteners.

According to the fifth aspect of the present invention, in the first, second, third, or fourth aspect of the present invention, the chain is provided at a predetermined position in the bamboo material or in the wood. A mark is provided for the operator to directly or indirectly check whether the tip end of the cutting tool has come, or a transmitting section for the receiving-side detection end provided separately and fixed to a rail or the like.

With the above configuration, the operator can easily visually recognize the position of the tip of the cutting tool during the work, and whether or not the drilling is completed, and thus eliminate the risk of damaging the stopper and the cutting tool.

According to the sixth aspect of the invention, the bamboo material is provided with an axial through-hole by removing its nodes, and a high-strength resin (including FRP, glass fiber, etc.) or metal in addition to this is provided in the through-hole. Filled with high-strength materials such as rods (other pipes). With the above configuration, the bamboo material greatly improves its mechanical strength such as compression resistance and bending resistance while maintaining its external appearance.

According to the seventh aspect of the present invention, the length is 4.
Wood having a length of 5 m or more is provided with a hole in the axial direction therein, and the hole is filled with a high-strength resin or a high-strength material such as a metal rod. According to the above-described configuration, a long piece of wood having a length of 4.5 m or more greatly improves mechanical strength such as compression resistance and bending resistance while maintaining its external appearance.

In the invention according to claim 8, the length is 4.
For bamboo materials that reach 5 m or more, usually around 10 m, and even up to 15 m, the nodes are removed to provide axial through holes, and performance improving materials such as smoke, anticorrosion materials, and water resistant materials are applied or impregnated from the through holes. ing. As a result, the performance of the long bamboo material such as corrosion resistance and water resistance is greatly improved. Moreover, at this time, no matter what kind of performance improver is applied, it is possible to apply the composition only from the inside without deteriorating the beauty of the appearance. Moreover, it is easy to impregnate from inside. (Note that the outer surface of the bamboo material inherently has a certain degree of water resistance, etc., just in case, just in case. Conversely, impregnation is difficult.)

According to the ninth aspect of the present invention, a long piece of wood having an axial length of 4.5 m or more is provided with a hole in the inside thereof in the axial direction, and an anticorrosion material such as smoke and coal tar is formed from the inside of the hole. In addition, a performance improving material such as a waterproof material such as various paints is applied or impregnated. With the above configuration, the performance of the long bamboo material such as corrosion resistance and water resistance is greatly improved. In addition, at this time, no matter what kind of performance improving agent is applied, it is possible to prevent the beauty and naturalness of the appearance from being impaired as long as it is applied only from the inside.

[0037]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described based on its embodiments. (First Embodiment) The present embodiment relates to an apparatus used for removing a node of a long bamboo material. Hereinafter, the present invention will be described based on its embodiments with reference to the drawings. FIG. 1 is a perspective view of an entire apparatus for removing a knot of a bamboo material and drilling an axial direction of wood according to the present invention. FIG. 2 is a state diagram before a node removing operation and a process are started. FIG. 3 is a state diagram of the device after the removal of the node. FIG. 4 is a side view.
FIG. 5 is an external view of the cutting tool when removing bamboo nodes. FIG.
FIG. 2 is an external view of a drill used for machining. FIG.
FIG. 2 is an external view of a drill used for drilling a central portion of wood.

In FIG. 1, reference numeral 1 denotes a guide rail having sufficient steel properties as compared with the material to be processed. Reference numeral 2 denotes an end holding plate for fixing the workpiece. Reference numeral 3 denotes a hard rubber elastic body for compressing and fixing the material to be processed during processing.
The elastic body 3 is attached to the inner surface of the holding frame 4 so as not to damage the material to be processed. And 5 is
It is a handle. When the handle 5 is rotated in the clockwise direction, the holding frame 4 is closed, and when the handle 5 is rotated in the counterclockwise direction, the holding frame 4 is opened.

During processing, the bamboo material is oriented so that the base is directed toward the end pressing plate 2 of the material to be processed.
The thickness of the elastic body 3 made of hard rubber is made thinner toward the end holding plate 2. Here, the bamboo material is oriented so that the root is directed toward the end holding plate 2 in the first place in consideration of the droop of the rotating shaft, which will be described later, due to its own weight, and in the second, it will be described later. In order to prevent the outer skin from being damaged due to the unnecessary pressure applied to the outer skin of the bamboo material of the holding frame 4 part by receiving the compressive force received from the cutting tool at the base of the bamboo material, Considering that the bamboo material is thinner toward the tip when the rotating shaft is pulled out, it is convenient to fix the bamboo material against a slight tensile force caused by pulling out the bamboo material.

Next, since the difference between the thickness of each bamboo material to be treated and the thickness of the same bamboo material in the axial direction is approximately within a certain range, in many cases, expansion and contraction of hard rubber having an appropriate thickness in advance is performed. It can be absorbed. And of course, if it is insufficient, it can be easily compensated by additionally inserting an elastic body made of a flat rubber belt. Also, the bending of the bamboo material may be rich in the elasticity of the material itself, and the bending can be easily corrected by rotating the handle 5. Further, for these reasons, the centering of the material to be processed and a cutting tool or the like described later becomes easy.

Reference numeral 6 denotes a plate for fixing a rotating shaft of a cutting tool for cutting and removing a bamboo node, which is fixed to the guide rail 1. Reference numerals 7 and 9 denote moving plates that can slide on the guide rail 1 while supporting the rotating shaft. That is, as can be seen by comparing FIGS. 2 and 3, the movable plate 7 slides on the upper portion of the guide rail 1 while supporting the rotating shaft. Reference numeral 8 denotes a long rotating shaft, and a cutting tool 13 is fixed to a tip of the rotating shaft. Further, of the moving plates 7 and 9 of the rotating shaft 8, a cutting rotating motor 10 for rotating the rotating shaft 8 and a drive belt 11 are provided on the one 9 on the side opposite to the handle 5 (hereinafter also referred to as “movable plate”). Equipped. The use of the drive belt 11 here is lighter in weight than the transmission by gears, and has flexibility such as easy follow-up of fluctuations caused by drooping and twisting of the rotating shaft and conversion as required. It depends.

In FIG. 2, reference numeral 12 denotes a rotating shaft for opening and closing a holding frame for holding the material to be processed. The handle 5 provided at the end holding plate 2 is rotated in a counterclockwise direction, clockwise. , The holding frame 4 can be opened and closed. Reference numeral 13 denotes a cutting tool provided at the tip of the rotating shaft 8. At this time, it is needless to say that it is necessary for accurate cutting and removal of bamboo nodes that the center position of the holding frame 4 and the center of the rotary shaft 8 to which the cutting tool 13 is attached substantially match. Reference numeral 14 denotes a plate for fixing the guide rail together with the end holding plate 2 and the solid plate 6.

Next, FIGS. 3 and 4 show how the movable plates 7 and 9 of the rotating shaft 8 have been moved so as to be in close contact with the fixed plate 6. In FIG. 4, reference numeral 15 denotes a chain belt. Reference numeral 16 denotes a helical spring. One end of the chain belt 15 is fixed to the rotating shaft pressing plate 9 on the side opposite to the handle 5. Reference numeral 17 denotes a chain belt gear, reference numeral 18 denotes a drive belt, and reference numeral 19 denotes a movement motor.

Thus, when the moving motor 19 is driven, the chain belt gear 17 rotates. Now, since one end of the chain belt 15 is fixed to the end fixing device 20 below the movable plate 9, the chain belt 15 is wound up with the rotation of the chain gear, and thus the guide handle 1 and the anti-handle The movable plate 9 on the side moves to the handle side. Well, this chain belt 1
Although not shown, a cutting tool 13 at the tip of the rotating shaft 8 is shown in FIG.
Is marked with a large red mark that is easily visible, so that the operator of the present apparatus can easily visually recognize the position of the blade 13 in the bamboo material during the knot removal operation.

In order to prevent the movable plate 9 from being loosened and bent by moving the movable plate 9 toward the handle, the chain belt 15 has a helical spring 16 having the other end extended in advance.
And the helical spring 16 is fixed to a stopper 21 provided at the center of the guide rail fixing plate 14. The reason why the chain belt 15 is made like a rubber band so that the movable plate 9 can be moved to the opposite side of the handle by the movement motor 19 described later is the difference in length of each bamboo material. This is because it was able to respond flexibly to

The moving motor 19 can be rotated forward and backward so that bamboo materials and the like can be sequentially processed. This reversing function is necessary to extend the helical spring 16.

Next, although not shown, the movable plate 9 is provided with rubber on the side opposite to the handle 5, and this rubber is connected to a plate 14 for fixing the guide rail. When the moving motor 19 pulls the movable plate 9 toward the handle 5, the rubber is stretched, and the removal of the knot of the bamboo material is completed, so that when the moving motor 19 reverses, the chain belt 15 moves in the reverse direction. Accordingly, the movable plate 9 returns to its original position.

Next, although this is also complicated, the movable plate 9 and the two movable plates 7 are connected by a string, though not shown. Therefore, with the return of the movable plate 9 to the original position, the two movable plates 7 also return to their original positions. The string is tied here to optimize the mutual distance between the movable plates 7 and the movable plates 9 depending on the length of the material to be processed, and furthermore, the hanging of the cutting tool at the tip of the rotating shaft 8. Because it is convenient to minimize.

FIG. 5 is an external view of a cutting tool for removing a knot of a bamboo material. In the figure, reference numeral 22 denotes the blade itself, which is fixed to the rotating shaft 8 with a screw 23. The front end of the blade has a tapered blade, and the rear end of the blade is also tapered (FIGS. 5, 22).
See) the maximum outer diameter D ₁ is required for the holes drilled work smooth section that is always larger than the outer diameter D ₂ of the rotary shaft.
That is, when cutting the cutting tool into the bamboo node, cutting is performed at the tip of the cutting tool, and after removing the node, the rotary shaft is pulled out from the rear end. It is desirable that the method of attachment and the state of the taper be the same.

When the bamboo knots are removed by the apparatus of the present embodiment, the internal air is opened to the outside. There are no cracks in the outer skin of the bamboo material and, of course, no explosion. In addition, since the bamboo material is in the shape of a pipe with the inside penetrating, not only the surface layer on the outer periphery but also the inner periphery is exposed to soot. For this reason, further drying and weight reduction can be achieved. In addition, since soot adheres to the inner peripheral portion, corrosion resistance and pest resistance are further improved, and use and storage for a longer period of time are possible. Furthermore, since the moisture is removed from the inside and the weight is further reduced, the handling by a person becomes easier.

(Second Embodiment) The present embodiment relates to an apparatus used for drilling holes in a wood through direction.

Hereinafter, this embodiment will be described in detail.
This embodiment is basically the same as the above-described first embodiment, and therefore, different points will be mainly described. The first difference is the shape of the holding frame 4. That is, in the case of bamboo, for example, since the thickness is different between the root and the tip (about 15 cm for a bamboo having a length of 10 m), the thickness of the elastic body 3 applied to the inner surface of the holding frame 4 is compensated for. I needed to make it different. However, in the case of wood, it is not as long as bamboo,
Also, since the lumber may be lumbered, the diameter or the like does not change as much as bamboo lumber. In some cases, they may be the same.

The second difference is a drill used for cutting. 6 and 7 are external views of drills for drilling holes in the core of wood. FIG. 6 shows the shape of a drill 24 such as a drilling machine used for machining, and FIG. 7 shows the shape of a drill 25 used for drilling holes for woodworking. And for discharging any fog chips, it is larger than the diameter D ₂ of the rotating shaft fitted with Kiri its outer diameter D _1. Further, the second half of the drill is not tapered in the opposite direction to the first half. The other points are the same as in the case of bamboo.

In the case of wood, the coefficient of thermal expansion between the outer peripheral portion and the inner peripheral portion having a hole is substantially the same, although the grain size per unit length in the normal direction is not affected. It is necessary to minimize the difference in elongation on the circumference due to the thermal expansion of the inner circumference and the inner circumference, and the diameter of the hole and thus the thickness of the drill may be changed as necessary.

In the case of wood, as in the case of bamboo wood, a soot film is formed on the surface by treating it with soot, and at the same time, the moisture in the wood is evaporated to improve the corrosion resistance and the weight is reduced. I can do it. At this time, by forming a through hole in the center portion of the wood, the inside and the outer circumference of the wood are coated with soot, which leads to a longer life than in the past. Further, in the case of wood, unlike a bamboo material, it is not always necessary to be a round material, and it is a matter of course that the present invention is applicable to lumber products such as pillars.

(Third Embodiment) In this embodiment, a bamboo material from which nodes are removed by the device described in the first and second embodiments, and an axial through-hole are provided. About wood.

Hereinafter, this embodiment will be described in detail.
FIG. 8A shows an axial cross section of a bamboo material 81 coated with a performance improving material 84 which has a greater effect of corrosion resistance and water resistance than the inside after providing holes 83 in all the nodes 82, but which impairs aesthetic appearance. FIG. This can be easily achieved by making holes in all the nodes, closing one end with a plug, and injecting a liquid performance improving material or a liquid containing the same from the other end. Thereby, the corrosion resistance and the water resistance are improved without impairing the beauty of the surface of the bamboo material having a certain level of corrosion resistance and water resistance. In the present bamboo material, the reason why the knot is not completely removed and the hole is simply provided is to minimize a decrease in bending strength of the bamboo material.

FIG. 8B shows an axial direction of a timber for structural use in which an elongated through-hole 87 is provided in a long piece of wood 85 with an outer skin 86 attached, and then an iron tube 88 and a resin 89 are filled therein. It is a center sectional view. This structural wood is first passed through an iron pipe in the axial through hole 82 of the long wood 81, and then filled with high-strength resin pellets between the wood and the iron pipe, and the whole is melted and solidified by heating. It is manufactured by doing. As a result, high-strength structural wood can be obtained without impairing the beauty of the bark of the wood or the naturalness of the bark. Also in this case, it is a matter of course that a corrosion-resistant agent, an insect-resistant agent, or the like may be applied or penetrated from the through-hole side before inserting the iron tube.

[0059]

DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) An embodiment of the apparatus of the present invention will be described below. The device for removing knots of bamboo and the axial drilling of wood according to the present embodiment is basically the same as the devices described in the first and second embodiments. The first feature of this embodiment is that, as a first feature, not only the blade at the tip of the rotating shaft, but also the rotating shaft, the type of the material to be treated such as bamboo material, wood, etc. In the case of wood, it can be easily replaced depending on the diameter of the through hole or the length of the wood. As a second feature, when the material to be processed is wood, an external elastic body 93 attached to the holding frame as shown in FIG. The (holding frame) side has a circular shape, and the inside (square wood) side has a right angle cut in advance as standard equipment. Thus, the square wood 91 can be fixed at the four corners without damaging the elastic body 3 previously fixed by the holding frame 4.

As a third feature, the rail length is 30 m or more, and the rotation axis is also 15 m or more, so that nodes of long bamboo materials of 15 m or more can be removed. In addition,
Since the rail length is 30 cm or more, the work time can be shortened, for example, by fixing the material to be processed at the center and providing rotating shafts with blades at both ends. The diameter of the rotating shaft is 20 mm on the tip side and 30 mm on the other side, which is somewhat thicker. Further, the diameter of the blade is 35 mm. This prevents the rotating shaft from drooping downward as much as possible, and at the same time, facilitates the pulling-out after removing the knot.

Next, both the cutting rotation motor and the moving motor are three-phase motors of the same type, for example, 400 KW or less, to facilitate the repair. And the rotating shaft with the cutting tool is 300 rpm, the cutting speed is 1-3
m / min. However, it goes without saying that these specific numerical values change depending on the contents of the processing and the like.
The reverse rotation of the moving motor is performed by reversing the two-phase connection among the three phases. Furthermore, it is needless to say that the forward rotation of the movement motor is adjusted to the rotation of the cutting rotation motor.

The centering of the material to be processed, the cutting tool, and the rotating shaft is performed.
This is achieved by adjusting the thickness of the lower part. In the left-right direction, the bamboo material is not particularly adjusted because the cross section in the direction perpendicular to the axis is circular. In the present embodiment, the mounting height of each part of the apparatus on the workpiece side or the blade side is not adjustable, but this is intended to reduce the price of the apparatus because products are not required to have such accurate dimensions. It depends.

A chain mark indicating the position of the tip of the cutting tool is of the same type as that of the first embodiment. In addition, for detecting the position of the tip of the blade, a combination of various transmitters and receivers, such as a combination of a magnet and a magnet detector, may be considered. As a result of giving priority to the replacement of the rotating shaft and the cost reduction of the device, only the red mark on the chain is displayed. (Second Embodiment) This embodiment relates to a long bamboo material in which all the nodes are perforated in the apparatus of the first embodiment. The length of the bamboo material is generally 10 m, and the maximum length is 15 m. The outer diameter is generally 20 to 15 cm at the root and 10 to 10 at the tip.
It is about 6 cm. Each node is formed with a small hole by the apparatus shown in the first embodiment. Under these circumstances, the bamboo is made by the method shown in the prior art, and thereby the weight reduction is achieved mainly by removing the moisture inside.

Next, both inside and outside are subjected to water and corrosion resistance treatment. However, in this case, a performance improving agent that has a large effect but does not impair the aesthetic appearance is applied and penetrated from the inside. Thus, when used as a holding rod for nets for cultivating laver in seas with large differences in ebb and flow, such as Ariake Bay, it is easy to work by human power because it is lightened by soot dehydration (Note: (Mechanization is difficult or insufficient), and the external aesthetics make the operator psychologically easier.

On the other hand, since a highly effective performance improving agent is applied from the inside of the bamboo, the water resistance and the like are greatly improved. In addition, the buoyancy of bamboo can be adjusted by plugging and not reversing the ends, so that various types of work on the sea, such as work to fix on the sea floor, transport, use as a floating body, etc. It will be easier. In addition, at this time, since each section was simply opened without removing everything, the strength as bamboo material,
In particular, the bending strength is not impaired. On the contrary, it is rather improved depending on the performance improver.

Although the present invention has been described based on the embodiments and the examples, it goes without saying that the present invention is not limited to these. That is, for example, the following may be performed. 1. The elastic body is not hard rubber but another object, for example, leather. Further, instead of being fixedly attached to the holding frame, the attachment is made by mechanical fitting or frictional force, so that it can be easily attached and detached. Alternatively, a detachable object is also used. And by these, the shape of the material to be treated,
It is possible to flexibly respond to dimensions.

2. The position of the marker on the chain belt is detected as an electric signal, and is indicated by an instrument in front of the operator. For this reason, a magnet is attached to the marker, and a plurality of magnetic detection ends are provided below the rail. 3. The fixed position of the fixed plate of the rotating shaft on the rail can be changed. Thus, the efficiency of the operation is further improved in accordance with the length of the material to be processed.

4. If the material to be treated is a very long bamboo material,
In addition to this, when precision requirements are severe such as when complete or almost complete removal of the node is required or when the hole position is required to be approximately at the center of the node, In order to prevent downward dripping and further rotation of the rotating shaft accompanying this as much as possible, the rotating shaft is much thicker at the base than that shown in the embodiment, and the blade at the tip is made of wood, It is made of light alloy. Alternatively, replacement with such a rotating shaft or the like is possible.

5. Similarly, when the position of the hole is required to be approximately at the center of the node, the cutting tool diameter is, for example, 35 mm.
Then, the diameter of the part of the rotating shaft excluding the vicinity of the blade is also 35 mm
And As a result, the long rotating shaft is 35
By being supported by a node having a hole of mm, the downward droop and the whirling of the tip are minimized. At this time, it touches the bamboo node, but the contact length is small, so the frictional resistance received by the rotating shaft is relatively small, and the cut chips at the center of the node will collect in the middle of the node. Become.

If the same as 6.5, the tip of the rotating shaft is
As shown in (a), the leg 101 is opened by, for example, centrifugal force or spring force associated with the rotating shaft, whereby a jig 102 or the like whose tip is held on the inner surface of the bamboo material 81 is attached. In this case, when passing through the node 82, FIG.
As shown in (a) of FIG.
1 will be closed. However, in this case, the rotating shaft 8
When pulling the jig, this jig 1
Work such as taking out 02 is necessary, but this is unavoidable.

7. As for the use of the product, long bamboo materials are used as bamboo rods for carp climbing, rods such as flag poles, and ladders for acrobatics. For wood, mountain huts that do not fall or rock slightly in rocks or avalanches in Takayama, natural huts in memorial halls and parks, reinforcements for preservation memorial houses, scaffolding materials in building construction, etc.

8. FRP is filled to improve the strength of wood and the like. Under the current technology, a modified PP having a melting point of about 100 ° C. and thus FRP can be easily produced by using, for example, a single-site catalyst. 9. Both the movable plate and the movable plate are separately attached to a mounting base, and the mounting height of each mounting base can be adjusted in the vertical direction to enable vertical centering.

10. To check the position of the tip of the cutting tool, a sound-emitting mechanism is provided on the rail near the handle, or a magnet is attached to the rotating shaft near the cutting tool, and a magnet machine detection end is provided on the rail near the handle, thereby temporarily converting to an electric signal. rear,
The operator is notified by a scale or the like that the opening of the nodal hole has been completed or is almost completed. 11. In order to prevent the tip of the cutting tool from going too far toward the handle, not only the operator is notified of the end of the work with a scale or the like, but also a function of issuing an alarm by sound or flashing light.

12. The mounting position of the holding frame on the guide rail in the rail direction is adjustable. 13. Although briefly described in the first embodiment, a so-called two device is attached to each other so that the material to be processed can be removed from both ends thereof. In this case, the stoppers are commonly used by the axial punching devices on both sides (ends). In addition, each device has a moving plate with a blade rotating shaft. In addition, it is needless to say that appropriate common use, common use, and the like are performed.

[0075]

As described above, according to the present invention, in the case of bamboo and medium wood produced by smoking the surface of bamboo, the knot is removed or the hole is formed in the knot as a pre-treatment. In the case of wood, in the case of wood, an inexpensive device for making a hole in the center (core) and making a through hole is provided, and as a result, it is possible for bamboo and the like to smoke not only the outer surface but also the inner surface. Become. When this device is used, especially in the case of bamboo, the original bending of each material to be processed is naturally corrected, so that operations such as centering are facilitated. Similarly, if the guide rails are long, long (15m) bamboo,
Even with wood (10m or more), knots can be easily removed. Similarly, changes in the dimensions of holes to be provided due to differences in the material of the wood, the core at the center thereof, the application, and the like can be easily switched by exchanging the blade tool, the holding frame, and the like.

As a result, it is possible to further reduce the weight of the bamboo material and the wood by further drying, and to further prolong the service life of the infiltrated smoke component. Further, both the bamboo material and the wood material do not suffer from defects such as cracking despite the rapid change in temperature during bamboo or medium wood. Furthermore, in the bamboo material and wood according to the present invention, not only the corrosion resistance, insect damage resistance and water resistance are improved, but also the external appearance is not impaired.

Furthermore, the effect is increased not only by the bamboo bamboo and the medium wood but also by applying the performance improving material not only from the outside but also from the inner hole. This is especially true for bamboo. Furthermore, by filling the inside with a high-strength material in addition to the bamboo bamboo and the medium wood, the strength as a structural material is dramatically increased without impairing the natural appearance.

[Brief description of the drawings]

FIG. 1 is a perspective view of a bamboo node removing device.

FIG. 2 is a plan view of FIG. 1 showing a state before processing such as removal of bamboo nodes by cutting;

FIG. 3 is a plan view of FIG. 1 showing a state after processing such as removal of bamboo nodes by cutting;

FIG. 4 is a side view of FIG.

FIG. 5 is an external view of a cutting tool for removing a node of a bamboo material.

FIG. 6 is an external view of a drill used for machining.

FIG. 7 is an external view of a drill used for woodworking.

FIG. 8 shows bamboo (a) and wood (b) which have been treated to exert various performance-improving effects after removing nodes and providing axial through holes using the apparatus according to the present invention. It is.

FIG. 9 is a view of an elastic body as standard equipment for fixing a square timber.

FIG. 10 is a view of a holder at a tip of a rotating shaft in removing a node from a long bamboo material.

FIG. 11 is a diagram conceptually illustrating a conventional method of removing a bamboo node.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Guide rail 2 End holding plate 3 Elastic body 4 Holding frame 5 Handle 6 Rotating shaft fixing plate 7 Rotating shaft moving plate 8 Rotating shaft 9 Rotating shaft moving plate (movable plate) 10 Cutting rotation motor 11 Drive belt 12 Rotating shaft for holding the workpiece 13 Cutting tool 14 Guide rail fixing plate 15 Chain belt 16 Hanging spring 17 Chain belt gear 18 Drive belt 19 Moving motor 20 End fixing tool 21 Center helical spring stopper 22 Taper Blade tool 23 Screw for mounting tool 24 Drilling machine drilling machine 25 Woodworking drill 31 Cross section of bamboo material 32 Bamboo node 33 Iron bar 34 Floor surface 35 Arrow (up and down) direction 81 Bamboo material 82 Bamboo node 83 Node hole 84 Performance improvement Agent 85 long wood 86 skin 87 axial through hole 88 iron tube 89 resin 91 square wood 93 additional elasticity 101 leg 102 leg mounting jig

Claims (9)

[Claims] 1. An apparatus for removing knots and bamboo in the axial direction of bamboo, characterized by the following technical matters: (1) a horizontal guide rail having a length of at least 9 m; and (2) the guide. A stopper fixedly provided at one end of the rail, and (3) absorbs a difference in the thickness of the workpiece in the axial direction and a bend in a range of a half of the side where the stopper of the guide rail exists. And at least two opening / closing mechanisms provided to be fixed to the guide rails at the time of processing in order to fix the material to be processed, and for mounting and removing the material to be processed.
And (4) a node of the workpiece to be movable along the guide rail on the side opposite to the stopper of the guide rail and fixed by the workpiece fixing mechanism. A moving plate with a blade rotating shaft mechanism equipped with a rotating shaft whose removal and axial drilling processing is attached to the tip thereof, and further having an axis aligned with the material to be processed, and a drive motor for the rotating shaft; ) A rotary bearing provided between the workpiece fixing mechanism on the guide rail and the movable plate with the blade rotary shaft mechanism for supporting the rotary shaft, and moving the blade to the stopper side on the guide rail; (6) at least one rotating shaft holding member movable along the guide rail, and (6) the moving plate with the blade rotating shaft mechanism in the direction of the stopper on the guide rail at the time of removing the bamboo material and drilling the hole in the axial direction of the wood. To move along (7) a motor with a chain gear mechanism, which is fixed to the stopper of the guide rail and which can be rotated forward and backward; (7) one end of which is fixed to a lower portion of the movable plate with the blade rotating shaft mechanism, A chain for moving the movable plate with the blade rotating shaft mechanism to the stopper side along the guide rail as (8) one end is fixed to the end of the movable plate with the blade rotating shaft mechanism of the chain, and the other end is the guide rail. A chain bending prevention elastic absorption mechanism that is fixed to the anti-stopper side and absorbs the bending generated when the moving plate with the blade rotating shaft mechanism of the chain is pulled toward the stopper side on the guide rail on the guide rail; and A device for visually confirming the position of a blade, and a device for visually confirming the position of a blade. 2. The cutting tool has a cutting edge having an acute-angled tapered tip and a cutting edge with a similar taper on the back surface, and the rotating shaft has a maximum diameter smaller than the maximum diameter of the cutting tool. 2. The device for removing knots of a bamboo material and drilling a wood according to claim 1, wherein: 3. The cutting tool has a tip having a required diameter in a screw-shaped portion for fixing a hole, a screw-shaped portion for fixing a hole, and a drill used for drilling with a woodworking tool. The knitting of the bamboo material according to claim 1, wherein a maximum diameter of the rotating shaft is smaller than a maximum diameter of the cutting tool.
Wood drilling equipment. 4. The moving plate with a cutting tool rotary shaft mechanism is a cutting tool attached to the tip of a rotating shaft according to the type of the material to be processed such as removal of a knot of the material to be processed and axial hole drilling and the like. 4. The knot removal of the bamboo material according to claim 1, wherein the mechanism has a mechanism capable of replacing the bamboo material.
Axial drilling equipment for wood. 5. A tool for visually confirming the position of the cutting tool in the bamboo material or wood at a predetermined position of the cutting tool directly or indirectly on the chain. A mark or a transmitting part for confirming in the above is attached.
5. The apparatus for removing a knot of a bamboo material and drilling a wood hole according to claim 2, 3 or 4. 6. A bamboo material characterized in that a knot is removed to form a through hole in the axial direction, and the through hole is filled with a high-strength resin or a high-strength material such as a metal rod in addition to the resin. 7. A hole having an axial length of 4.5 m or more, characterized in that a hole is formed in the inside in the axial direction, and a high-strength resin or a high-strength material such as a metal rod is additionally filled in the hole. wood. 8. A length having a feature in which a node is removed to form an axial through-hole, and a performance improving material such as smoke, a corrosion-resistant material, or a water-resistant material is applied or impregnated from the through-hole. Bamboo material of 5m or more. 9. An axial length of at least 4.5 m, characterized in that a hole is formed in the inside in the axial direction, and a performance improving material such as smoke, a corrosion-resistant material and a water-resistant material is applied or impregnated from inside the hole. Wood.