JP3990926B2 - fishing rod - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a fishing rod, and more particularly to a fishing rod having a rod made of fiber reinforced resin.
[0002]
[Prior art]
Bamboo bamboo flexes supple and returns slowly (restores to its original state), so it is said that the fishing taste is good. For this reason, a variety of products have been manufactured and sold in the past. It was.
[0003]
By the way, bamboo bamboo is used as it is by subjecting natural bamboo to heat treatment, cut-out processing, thread winding / painting processing, etc., but its performance is greatly affected by the degree of bamboo growth and processing method, etc. However, quality such as tone (easiness of bending) varies, and it is difficult to manufacture a product with uniform quality.
[0004]
Therefore, in recent years, fishing rods formed by molding fiber reinforced resin using carbon fibers or glass fibers as reinforcing fibers have become the mainstream as an alternative to bamboo rods.
A fishing rod formed from such a fiber reinforced resin does not use a natural product as it is like a bamboo shoot, so it has a relatively uniform quality and is lighter and stronger than a bamboo shoot. Has been used in most fishing in recent years.
[0005]
However, a fishing rod made of fiber reinforced resin using carbon fiber or glass fiber as a reinforcing fiber bends when an external force such as fish pulling or fish shin is applied, but immediately returns to its original state when the external force decreases or disappears. Since it is easy to restore, the return to bending is too agile, and as a result, there is a problem that the reaction is mechanical and lacks fishing.
[0006]
[Problems to be solved by the invention]
Therefore, in view of the above-mentioned conventional problems, the present invention has an object to provide a fishing rod that can produce a relatively uniform quality, and has a gentle return to bending and excellent fishing taste, such as a bamboo rod. And
[0007]
[Means for Solving the Problems]
As a result of intensive studies in view of the above-mentioned problems, the present inventor used glass fibers and carbon fibers that are the same as glass fibers and carbon fibers when using fibers of a predetermined thickness extracted from bamboo as reinforcing fibers in fishing rods made of fiber-reinforced resin as reinforcing fibers. As a result, the present invention has been completed by finding that the operation of returning to bending is gentle as compared with the case of using it. That is, in order to solve the above-mentioned problem, the fishing rod according to the present invention is a fishing rod having a rod made of fiber reinforced resin, and the fiber reinforced resin has carbon as a reinforcing fiber oriented in the circumferential direction. It is characterized by containing a fiber and an opened bamboo fiber having a diameter of 0.01 to 0.5 mm oriented in the axial direction . The opened bamboo fiber having a diameter of 0.01 to 0.5 mm usually has an elastic modulus within a predetermined range, and the bamboo itself is used by using a predetermined amount of the fiber as a reinforcing fiber ( Compared to bamboo baskets), the quality of the tone and the like of each basket can be reduced. In addition, although its action is not clear, by using the bamboo fiber as a reinforcing fiber, when the external force is reduced or removed after being bent by an external force, it temporarily exhibits a slight plasticity and uses carbon fiber or the like. Compared to the case, it takes time to restore to the original state, and the return to bending is gentle and the fishing taste is excellent. In the present invention, the diameter of the bamboo fiber means the distance between the two most distant points (that is, the maximum diameter) in the cross section orthogonal to the axial direction, and this value is measured from a microscopic cross-sectional photograph. Is done.
[0008]
In the present invention, it is preferable that the bamboo fiber is oriented in the axial direction of the pipe.
By acting such a configuration, there is less possibility that complete plastic deformation is caused by the bending while exhibiting an effect that the return to the bending is gentle.
[0009]
Furthermore, it is preferable that the said bamboo fiber is heat-processed.
By using heat-treated bamboo fiber as a reinforcing fiber, it becomes highly elastic and hardly undergoes plastic deformation.
Here, the heating process is a process of evaporating moisture and oil by heating in a state of bamboo before being extracted as fibers or in a state of extracted fibers so as not to be carbonized.
This heat processing is normally performed by heating to 150-800 degreeC for several seconds (specifically about 1-10 seconds).
For this heat processing, for example, when manufacturing a soot tube (for example, carbon rod) made of a fiber reinforced resin using carbon fiber as a reinforcing fiber, a firing furnace used for curing the resin by heating is used. You can also.
[0010]
Moreover, in this invention, what is further equipped with the carbon fiber or the glass fiber as said reinforcement fiber is preferable.
With bamboo fiber alone, when a large external force is applied, a large amount of bending may occur, which may cause plastic deformation that cannot be permanently restored to the original state. Since it is provided, the possibility of causing such plastic deformation is reduced.
This carbon fiber or glass fiber is preferably oriented in the circumferential direction.
According to such a configuration, even if the cross section of the soot tube is deformed from a circular shape to an elliptical shape by being greatly bent, it is reinforced by the carbon fiber or the glass fiber oriented in the circumferential direction, so that it is difficult to break and to be crushed. It will be a thing.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
The fishing rod of the present embodiment is configured, for example, as shown in FIG. 1, in which a plurality of rods 4 are connected in a side-by-side manner or a swing-out manner (see FIG. 1A).
The soot tube 4 is formed of a fiber reinforced resin, and has a tubular shape that forms a layer structure of an innermost layer A, an intermediate layer B, and an outermost layer C from the inside to the outside (see FIG. 1B). ).
The intermediate layer B includes an outer intermediate layer B1 disposed on the outer side and an inner intermediate layer B2 disposed on the inner side.
[0012]
In the innermost layer A, carbon fibers (elastic modulus 15000 to 60000 kgf / mm ² , usually elastic modulus 24,000 to 40000 kgf / mm ² , hereinafter the same for carbon fibers) as reinforcing fibers are oriented in the circumferential direction S1. Is provided.
The inner intermediate layer B2 is provided with carbon fibers as reinforcing fibers so as to be oriented in the axial direction S2.
The outer intermediate layer B1 includes, as reinforcing fibers, a fiber bundle in the bast portion of bamboo and bamboo fiber 5 opened to a diameter of 0.01 to 0.5 mm composed of the bundle of fiber bundles. .
As the bamboo fiber 5, for example, bamboo yarn (bamboo fiber) which is a raw material fiber of “Bamboo Aerato” (trade name) manufactured by Nomura Sangyo Co., Ltd. can be used.
The bamboo fibers 5 are arranged so as to be aligned in one direction and oriented in the axial direction S2 of the tub tube 4.
In the innermost layer A, carbon fibers are provided as reinforcing fibers so as to be oriented in the circumferential direction S1.
[0013]
Next, the case where this soot pipe 4 is manufactured is demonstrated, referring FIG.
First, as shown in FIG. 2A, a sheet-like prepreg A (hereinafter referred to as “innermost layer prepreg”) in which a sheet body in which only the carbon fibers 1 are aligned in one direction is impregnated with a matrix resin such as an epoxy resin. Is wound around the mandrel 3 so that the carbon fiber 1 is oriented in the circumferential direction S1.
In addition, the resin impregnation amount of the innermost layer prepreg is usually set to 20 to 40% by weight. The innermost layer A is constituted by the innermost layer prepreg A.
Next, a prepreg (hereinafter referred to as an inner intermediate layer prepreg) B2 in which a sheet body in which only the carbon fibers 1 are aligned in one direction is similarly impregnated with a matrix resin such as an epoxy resin is used, and the carbon fibers 1 are in the axial direction. It winds around the outer periphery of the innermost layer prepreg A so as to be directed to S2.
The resin impregnation amount of the inner intermediate layer prepreg B2 is usually set to 20 to 50% by weight. The inner intermediate layer B2 is constituted by the inner intermediate layer prepreg B.
Subsequently, a prepreg (hereinafter referred to as a bamboo fiber prepreg) B1 in which the bamboo fiber 5 is crushed in a fiber state and is impregnated with a matrix resin such as an epoxy resin in the same manner in a sheet body, The bamboo fiber 5 is wound around the outer periphery of the inner intermediate layer prepreg B2 so that the bamboo fiber 5 is oriented in the axial direction S2.
The resin impregnation amount of the bamboo fiber prepreg B1 is usually set to 20 to 50% by weight. The intermediate layer B1 is constituted by the bamboo fiber prepreg B1.
Next, as shown in FIG. 2B, the tape-shaped outermost layer prepreg C in which the carbon fibers 1 are aligned in the longitudinal direction is wound so that the carbon fibers 1 are oriented in the circumferential direction S1.
The resin impregnation amount of the outermost layer prepreg C is usually set to 20 to 50% by weight. The outermost layer prepreg C constitutes the outermost layer C.
[0014]
After a plurality of prepregs A, B2, B1, and C are wound as described above, a molding tape (not shown) is wound while appropriately adjusting the pressure, and then heated and fired at a predetermined temperature.
After heat-firing, the mandrel 3 is pulled out, the molding tape is peeled off, and further cut into a predetermined length to obtain the tubular tube 4 formed into a tubular shape.
[0015]
Next, an example of a method for extracting bamboo fiber 5 from bamboo will be described.
First, the leaves are removed from the harvested bamboo, cut as it is or into a predetermined length, and after heat drying, heat treatment is performed.
As heat processing, the method of heating bamboo at 150-800 degreeC for several seconds can be employ | adopted, for example by hitting a bamboo with a fire.
By this heat processing, the moisture and oil contained in the bamboo are evaporated, and the bamboo is in a state just before carbonization.
Next, the pectin that glues the fiber bundles to each other is made soluble and removed from the bamboo dried by heat processing. As a method for solubilizing pectin, for example, a fermentation method or a chemical method employed when extracting fibers from hemp can be employed.
Examples of the chemical method include a method in which bamboo is immersed in a sodium hydroxide aqueous solution and heated.
[0016]
Next, after further drying, it is roughly crushed through a rolling device. Crush and remove the wood on the inner circumference side of the bamboo by coarse crushing.
As the rolling device, a conventionally known one, for example, a roll type rolling device, a stamping type rolling device, or the like can be used. When passing through a rolling mill, the bamboo fiber 5 is passed along the growth direction, and the bamboo is split into bundles along the growth direction.
[0017]
This bamboo is opened with a reversing machine. By adjusting the size, number, rotation speed, and the like of the teeth of the repelling machine, the bamboo fiber 5 having a desired diameter composed of a bundle of fiber bundles or bundles of fiber bundles is obtained.
As the repelling machine, for example, an IM-34 type repulling machine manufactured by Sennan needle mill can be used.
In addition, when the fiber opening is insufficient, a turbo mill or the like is used as necessary, and the fiber is further finely opened. For example, the diameter of the fiber bundle of the bast portion or the fiber bundle bundle is 0.01 to 0.00 mm. The bamboo fiber 5 is 5 mm.
[0018]
In this embodiment, the prepreg in which the bamboo fiber 5 is rolled as it is and aligned in one direction is used. For example, the spun yarn obtained by spinning the bamboo fiber 5 in one direction by a cotton spinning method or the like is used. It may be a case where aligned prepregs are used. Further, even when a prepreg impregnated with a matrix resin is used in the spun yarn fabric, it is within the intended scope of the present invention.
Moreover, in this embodiment, although the thing of the 4 layer structure with which the intermediate | middle layer B pinched | interposed between the outermost layer C and the innermost layer A was illustrated as the soot pipe 4, the soot pipe 4 is shown in this invention. May have any number of layers, for example, may have a three-layer structure or five or more layers.
Further, in the present embodiment, the bamboo fiber 5 is used only as the reinforcing fiber of the intermediate layer B. However, even if it is used as the reinforcing fiber of the outermost layer C, the intended scope of the present invention. Even if it is used only as the reinforcing fiber of the outermost layer C, it is within the intended scope of the present invention.
[0019]
In addition, in a fishing rod in which a plurality of rods 4 are connected in a side-by-side manner or a swing-out manner, the connecting portions 4a and 4a of both the rods 4 that are fitted and connected to each other (or only the connecting portions 4a and 4a). ) In which bamboo fiber 5 is contained (see FIG. 1).
In such a fishing rod, not only the fishing taste is excellent as described above, but the bamboo fiber is more flexible than the carbon fiber, so the wear at the connecting portions 4a, 4a is reduced, The risk of scratching each other is reduced.
Moreover, the sticking of the connecting portions 4a and 4a can be reduced by the moderate flaking of the bamboo fibers and the cross section (an irregular cross section) having a high non-circularity.
In a joint type fishing rod, there are cases where the male connecting portion 4a is coated, but in this case, by using bamboo fiber as the reinforcing fiber of the female connecting portion 4a, The coating film is not easily scratched. Further, when painting is performed as described above, a creaking sound may be generated at the time of joining, but the squeaking sound can also be reduced by the bamboo fiber.
[0020]
【The invention's effect】
As described above, the fishing rod according to the present invention can have less difference in quality, such as the tone of each rod, than that using bamboo itself (bamboo rod), and the bamboo as a reinforcing fiber. By using the fiber, if the external force is reduced or removed after being bent by the external force, it will exhibit a slight plasticity temporarily, and it will be restored to its original state compared to the case of using carbon fiber etc. It takes time, and has the advantage that the return to bending is gentle and the fishing taste is excellent.
[Brief description of the drawings]
FIG. 1 shows a fishing rod of one embodiment,
(I) is a schematic side view,
(B) is a cross-sectional view taken along line XX of (A).
FIGS. 2A and 2B are schematic perspective views showing one process of manufacturing the soot tube of the embodiment in both FIGS.
[Explanation of symbols]
1 ... carbon fiber, 4 ... steel pipe, 5 ... bamboo fiber,
S1 ... circumferential direction, S2 ... axial direction

Claims (4)

A fishing rod provided with a rod tube (4) made of a fiber reinforced resin, wherein the fiber reinforced resin includes, as a reinforced fiber, a carbon fiber (1) oriented in the circumferential direction (S1) and an axial direction (S2). fishing rod) and the opening has been bamboo fiber diameter 0.01~0.5mm being directed (5), characterized in that it is contained.   The fishing rod according to claim 1, wherein the bamboo fiber (5) is heat-treated. The fishing rod according to claim 1 or 2, further comprising a glass fiber as the reinforcing fiber. The fishing rod according to claim 3, wherein the glass fiber is oriented in a circumferential direction (S1).

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