JP3171311B2 - Through fishing rod - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a through fishing rod having a head rod capable of large bending.

[0002]

2. Description of the Related Art A through fishing rod in which a fishing line is inserted inside a fishing rod has been used because it has the effect of preventing entanglement of the line. A rod tube with a small diameter such as a head rod needs to have a space inside for inserting a fishing line inside, and it is necessary to reduce the fishing line resistance. You.

[0003]

However, as the rod tube outer diameter increases, the bending rigidity increases accordingly, and a fishing rod with a delicate tone cannot be provided. In order to obtain this fineness, if the main body is formed of a synthetic resin material with low elastic modulus or if the thickness of the rod tube is reduced, the strength will be insufficient,
It becomes easy to be damaged at the time of large bending.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a through fishing rod having a sticky tip rod which has a delicate tone while having a large inner diameter and is capable of large bending.

[0005]

SUMMARY OF THE INVENTION In view of the above object, the present invention provides a prepreg having a synthetic resin impregnation ratio of 50 wt% (weight percent) or more and having unidirectionally oriented reinforcing fibers. A layer formed by winding so that the fibers are oriented substantially in the axial direction, and a large number of fibers are oriented crosswise from both the left and right sides in a substantially symmetric manner with respect to the axial direction, and are wound in a bag net shape and densely. A through fishing rod, comprising: a tip rod having a layer having braiding. A synthetic resin impregnated with 50% by weight or more of a prepreg having unidirectionally oriented reinforcing fibers is molded together while penetrating the braiding layer. Not only the ratio of the impregnated synthetic resin of the prepreg having the reinforcing fibers oriented in one direction but also the ratio of the synthetic resin in the entire formed rod tube layer is 50%.
It is preferably at least wt%. Therefore, the synthetic resin may be replenished by coating or the like from above the braided layer, and then heat molded.

Since the synthetic resin content is as high as 50% by weight or more, the spike can be set to have a low flexural rigidity and a delicate tone can be obtained irrespective of the presence of the reinforcing fibers in the axial direction. In addition, when the bending becomes large, the rod does not become a tip rod if the rod is crushed or buckled. In general, in order to prevent this, a circumferential reinforcing fiber is provided inside and outside the layer of the axial length reinforcing fiber to constitute a rod pipe. However, in the case of large bending, peeling is likely to occur between the circumferential reinforcing fibers adjacent to the tip rod,
If peeled off, the effect of the circumferential reinforcing fiber is hardly exhibited.

Therefore, in the present invention, in addition to the layer having the axial direction reinforcing fibers, a so-called braiding layer that is densely wound is disposed, and the presence of the axial direction component of the reinforcing fibers in the braiding layer is provided. In addition to preventing this peeling, the resin melted during the heat molding enters the eyes of the blading and is molded, so that delamination with the layer having the longitudinal reinforcing fibers is prevented, and the longitudinal strengthening is prevented. It is possible to provide a through fishing rod having a sticky tip rod which is reinforced so that the fiber and the reinforcing fiber of the braiding layer are connected to each other so that the rod pipe is not crushed or buckled, and is hardly damaged. Here, dense
It means that the spacing between the fibers is at least about several times the fiber diameter or less, but it is preferable that the fibers be adjacent so as to be almost in contact.

[0008] Further, the splintered rod that is greatly bent is apparently not damaged, but may not return to its original straight state. This is thought to be due to the fact that the longitudinal reinforcing fiber and its matrix resin are relatively displaced in the interior, and this phenomenon is caused by the load acting on the tip rod, twisting, and the direction of the longitudinal reinforcing fiber. Is likely to occur when the ratio of the synthetic resin is high or when the synthetic resin ratio is high. Even if it is accurately oriented in the axial direction at the time of molding, if the tip of the tip rod is twisted, the direction of the axial reinforcing fiber will deviate from the exact axial direction, but if there is a braiding layer For example, the obliquely oriented fibers have a high resistance to twisting, and the actual twisting amount is small. Therefore, the reinforcing fibers in the axial direction are also unlikely to deviate from the axial direction, and even if the resin ratio is high, the fibers and the resin are unlikely to be displaced. Therefore, the internal displacement state is unlikely to occur and tends to return to its original state, and the state becomes strong against large bending. Claim
In 2, the axial direction directing layer is a middle layer,
The above-mentioned brading is arranged on the outer layer.
Whether the oriented reinforcing fiber is the middle layer or the interlayer between the middle layer and the inner layer,
2. The through hole according to claim 1, further disposed inside the inner layer.
A fishing rod is provided (0010,0015). In claim 3
Means that the axial length direction fiber has an elastic modulus of 30,000 kg / mm
^3. A carbon fiber of about ² or less.
(0010). In claim 4,
The prepreg, which becomes a highly rigid rod tube with bending, is less at the tip of the rod,
Add more at the rear or increase the elasticity at the rear
Pre-preg of aligned fiber using fiber
To provide a through fishing rod according to claim 1,
021,0022). This results in a soft tone. Contract
In claim 5, the inner layer and the outer layer are closer to each other at the front portion.
While reducing the amount of axial length fibers in the middle layer,
At the rear, the inner and outer layers are rough blading
3. The medium communication device according to claim 2, wherein the amount of the axial length fibers in the middle layer is increased.
A fishing rod is provided (0022). This is a soft tone
Becomes

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in more detail with reference to embodiments shown in the accompanying drawings. FIG. 1 is a vertical cross-sectional view of a tip rod 10 of a through fishing rod. FIG. 2 is a partially enlarged view of the rod tube. It is preferable that a top guide 12 is attached to the tip of the tip rod 10 and can be detached by screwing. A ceramic guide ring 12G is provided at the tip of the top guide, another guide ring 12G 'is provided at the tip of the tip rod 10, and a tail plug 16 with a guide ring 16G is screwed at the rear end. (The screws are not shown). A spiral fishing line guide 14 is provided inside. Thus fishing line (not shown)
Can penetrate the inside of the tip rod with low resistance.

[0010] As shown in FIG.
U, a middle layer 10T, and an outer layer 10S. Middle 10T
Is a layer formed by a prepreg having a longitudinal direction reinforcing fiber and a synthetic resin of 50 wt% or more, and a fiber having a lower elastic modulus is used as the longitudinal direction reinforcing fiber. For example, glass fiber, low elastic carbon fiber (30000 kg
/ Mm ² or less). The middle layer may include not only reinforcing fibers oriented in the axial direction but also circumferential fibers and the like. Due to the presence of the axial length fibers, a bending rigidity when the tip rod is bent and a rebound action when the tip rod is bent, that is, a rod condition can be obtained.

In order for the fishing line to pass through the inside of the head rod with a small resistance, it is necessary to ensure a large inner diameter in terms of dimensions. However, in this case, the outer diameter of the head rod becomes large, and in general, the bending rigidity and bending The bouncing back action is too strong. This does not provide a delicate tip. Therefore, in order to adjust and reduce the bending rigidity, low elastic carbon fiber or glass fiber is used as the reinforcing fiber, the ratio of the synthetic resin in the matrix is increased, and the bending rigidity of the tip rod 10 is reduced.

Although the bending rigidity of the tip rod is adjusted in this way, the tip rod 10 is liable to be crushed or buckled when it is greatly bent. In order to prevent such breakage due to bending, circumferential reinforcing fibers are generally disposed in the inner layer and the outer layer of the middle layer 10T. However, in a rod tube which bends greatly like a delicate tip rod, circumferential reinforcing fibers are used. The matrix resin between the fibers is damaged and the adjacent circumferential reinforcing fibers are separated from each other,
It is easy to cause collapse and buckling failure. Also, the middle layer 10
Interlayer slip easily occurs between T and the inner and outer layers 10U and 10S, which may cause breakage.

In order to prevent breakage due to such large deflection, in the present invention, a braided layer densely knitted in a bag net is provided in place of the inner and outer layers of the circumferential reinforcing fibers. Since it is molded and the bag-like fiber has a component in the axial direction unlike the circumferential direction fiber, separation between fibers due to large bending is prevented, the torsional resistance is large, and the axial direction reinforcing fiber is used. Between resin and resin hardly occurs. Also, the middle layer 10
The synthetic resin of the molded T prepreg enters the braided network during the heat molding, and delamination is prevented.
For this reason, it is possible to provide a tip rod that is tenacious even with large flexure and hard to be damaged.

As described above, the spike of the present invention has a delicate tone and is resistant to large bending while allowing the fishing line to penetrate with a small resistance. Deformation is prevented from returning. The reinforcing fibers used for the braiding are glass fibers, the above-described low-elasticity carbon fibers, polyetherimide (PEI),
Aramid fibers and the like. The reason for using a relatively low elasticity reinforcing fiber is that the reinforcing fiber of the braiding has a component in the axial direction of the rod, so that the bending rigidity is added to the bending rigidity of the middle layer 10T of the axial direction reinforcing fiber. This is to reduce it.

As described above, the circumferential reinforcing fibers may be mixed in the middle layer 10T, and the middle layer 10T and the inner layer 1T may be mixed.
Circumferential reinforcing fibers may be provided between 0U layers or further inside the inner layer 10U. In this case, the elastic modulus of the circumferential reinforcing fibers may be larger than that of the axial reinforcing fibers.
In this way, a lightweight and high-strength spike can be formed. Further, since the reinforcing fibers are obliquely oriented in the braiding layer, they are resistant to twisting and have durability even when the spike is bent in any direction. Further, a rubber elastic layer may be formed on the outside or inside of the braiding layer to increase the restoring force of the spike. In addition, if a fiber having a larger breaking elongation than the inside of the tip pole 10 is used, it is easy to withstand a large bending.

Since each fiber of the braiding is directed obliquely, the circumferential component is smaller than in the case where the fiber is directed in the circumferential direction. If not, the cross-sectional shape is likely to change from a perfect circle to an ellipse when the tip rod flexes, enabling large bending, and the presence of the braiding layer and the high synthetic resin amount ratio. It is hard to be crushed or cracked.

FIG. 3 is a view of the tip rod 10 of FIGS. 1 and 2 in the process of being formed. The core 20 has a large number (for example, 6 pieces) of the longitudinal axis L1 from both sides of the axis. Above 1
(2 or less) fibers S1 and the same number of fibers S2 are braided while being oriented in a crossing manner at substantially symmetrical angles θ and θ ′, and a bag-mesh layer 1
0U '. The angles θ and θ ′ are 30 to 80
Degree is preferable, and more preferably 45 to 80 degrees. Especially around 45 degrees, it is strong against torsion. Here, these reinforcing fibers S1 and S2 have an elastic modulus of 24000 kg / m.
It is a carbon fiber of m ^2.

The ratio of the synthetic resin (epoxy resin) for forming the middle layer 10T from above is 50 wt% or more (69 wt% in this case), and the elastic modulus is approximately 7200 kg / m.
A prepreg 10T ′ made of a woven fabric of m ² glass fibers (both orthogonal bidirectional fibers are present in the same amount) is wound so that the fibers are directed substantially in the direction of the axis L1. Further, a bag net-like layer similar to the above bag net-like layer 10U 'is formed thereon. This is subjected to a heat treatment to form the tip rod 10. In this case, the middle layer of synthetic resin penetrates into the eyes of the inner and outer bag net braiding, and the resin spreads over all layers. The layer 10 of the braiding is provided inside the layer 10T having the axial fibers.
U is preferably present, and the braiding layer is formed inside the layer 10T by the inner layer 10U alone and by the outer layer 1U.
There is a case where only 0S is set.

In the bag-like net-like layer, the fibers S1 and S2 are respectively continuous, and are not broken in the circumferential direction. Therefore, this true braiding layer has high strength, but instead of this braiding layer, the winding direction of the woven fabric is set so that the angle of each direction fiber crossing the woven fabric becomes the above θ or θ ′. Then, the layer wound around the cored bar may be replaced with the inner layer 10U 'or the outer layer. Further, after the fiber is wound in a spiral in one direction, this fiber or another fiber may be wound in a spiral in the opposite direction to form a shape close to a bag net. The thickness ratio of the outer layer 10S, the middle layer 10T, and the inner layer 10U of the formed tip rod 10 is preferably about 1: 1: 1, and the middle layer 10T is preferably large.

Further, in order to sufficiently withstand large deflection,
It is preferable to use a material that can be greatly expanded and contracted, such as rubber and an elastomer resin, as the synthetic resin of the middle layer 10T.
When a so-called triaxial woven fabric oriented in three directions on a plane is used for the prepreg of the middle layer 10T, the number of fibers oriented in the axial direction is reduced, and the flexural rigidity is further reduced. Collapse can be prevented by the action of the fibers in two directions. It is effective to increase the wall thickness of the rod pipe in order to improve the strength against crushing fracture. However, mixing particles can increase the wall thickness and prevent the flexural rigidity from increasing. Further, if these particles are made to be particles having a light specific gravity, it contributes to the weight reduction of the tip rod. In other words, by mixing organic materials and natural materials that are small in specific gravity (about 1 micron or less) and have a lower specific gravity than foam materials, hollow materials, and other matrix synthetic resins,
Reduce weight.

As shown in FIG. 4, a prepreg corresponding to the middle layer 10T is provided above or below the prepreg P1 similar to the prepreg 10T 'as shown in FIG. A prepreg P2 of a low-resin-ratio high-elasticity aligned fiber usually used for production,
As shown in (a), triangular cut pieces are overlapped to form layer 1
It may be wound on 0U '. In this case, since the prepreg P2 which becomes a highly rigid rod tube is smaller at the tip of the rod and more at the rear, the prepreg P2 has a soft tip.

In place of the prepreg P2 of (a),
As shown in (b), each of the prepregs has a low resin ratio and has a trapezoidal shape, and prepregs P21, P22, and P23, which are aligned fibers using reinforcing fibers having a higher elastic modulus toward the rear, are sequentially superimposed on each other to obtain a high resin ratio. Pre-preg P with low modulus
1 may be wound. The inner layer 10U and the outer layer 10S
By making it closer to the tip, reducing the amount of axial fibers (middle layer)
When the amount of the fibers in the axial direction is increased by increasing the distance toward the rear side, the soft tone is obtained.

In FIG. 5, the layer structure of the present invention is used for the front rod 10F of the head rod 10 ', and the rear rod 10R is a rod having a general layer structure. That is, in the present invention, the layer structure described above may be employed for a part of the tip rod. The front rod pipe 10F is attached to the outer periphery of the rear rod pipe 10R,
Length region l2 of inner diameter larger than the inner diameter of rear rod 10R
Exists, and this length is approximately 1 / of the free length l1 of the front rod tube.
If it is set to 3 or more, preferably 以上 or more, it is possible to pay out the fishing line while preventing the line resistance from increasing even if the front rod tube is largely bent.

As shown in FIG. 5, the tip rod is divided into two parts,
In the case of further dividing into three or more, assuming that the lengths are sequentially set as l1, l2, l3... From the front end, l1 <l2 <l
When 3 <... Is set, it is easy to obtain a rod tone of a soft tip similar to that of a tip rod with a guide on the outside instead of the inside. In addition, it is assumed that the weight and the rigidity of each divided portion are not necessarily as heavy or high as the rear, and, for example, the weight and the rigidity are indicated by an attached symbol of w, and l1w> l2w <l3w
.., Etc., the second portion l2 from the beginning becomes a light or soft portion and has a tone different from the soft tone, but by setting these as desired, a desired tone can be obtained.

FIG. 6 shows a rod tube portion 10B in which the tip of the tip rod is formed only by braiding, and the rear portion has a layer having a braiding layer in addition to a layer having an axial length reinforcing fiber. It may be a rod-and-tube part of the invention structure or a normal rod-and-tube part which is not so. The braiding at the tip portion may be a layer wound multiple times, comparing the inner layer side and the outer layer side to change the orientation angle of the braiding fiber, change the elastic modulus, change the dense / dense state. hand,
Larger flexures can be accommodated by having the outer layer have a higher elongation. 14 'is a guide ring, but may be a spiral guide.

The rod tube section 10B is formed by knitting a linear body having a large diameter, such as a metal fiber, in an intersecting manner, and is capable of draining as a rough braided layer having an opening communicating with the inside thereof, and can withstand large bending. It can also be a tip portion that is used.

[0027]

As is apparent from the above description, according to the present invention, the layer having the reinforcing fibers in the axial direction has a high resin ratio, so that the rigidity against bending can be set low and the layer becomes flexible. With respect to crushing failure and buckling failure at the time of large bending, the presence of braiding prevents the delamination due to resin entering the mesh, and the fiber at the time of large bending due to the axial length component of the fiber. The separation between layers is prevented. In addition, it is possible to provide a through fishing rod having a tenacious tip rod which is hardly displaced from the axially reinforced fiber and the resin, has a fine tone while having a large inner diameter, and has a large flexure.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a tip rod of a through fishing rod according to the present invention.

FIG. 2 is a partially enlarged longitudinal sectional view of the tip rod of FIG. 1;

FIG. 3 is a view showing a manufacturing process of the tip rod rod tube of FIG. 1;

FIG. 4 is a view showing another embodiment of a prepreg used for manufacturing an axial length direction layer of the tip rod rod tube of FIG. 1;

FIG. 5 is a cross-sectional view showing another embodiment of the tip rod.

FIG. 6 is a side view showing another embodiment of the tip rod.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 Head rod 10T Shaft length direction layer 10T 'Shaft length direction layer prepreg 10S, 10U Inner / outer layer having braiding 10U' Braiding before firing P1 Prepreg having low elastic modulus reinforcing fiber having high synthetic resin ratio P2 Synthetic resin ratio Prepreg having low high modulus reinforcing fibers S1, S2 Cross-shaped reinforcing fibers braiding braiding

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. ⁷ , DB name) A01K 87/00 630

Claims (5)

(57) [Claims] 1. A prepreg having a synthetic resin impregnation ratio of 50 wt% or more and reinforcing fibers oriented in one direction,
A layer formed by winding the unidirectional reinforcing fibers so as to be oriented substantially in the axial direction, and a large number of fibers oriented crosswise from the left and right sides substantially symmetrically with respect to the axial direction to form a bag net, and densely. And a layer having braiding wound around the fishing rod. 2. The axial direction direction layer is a middle layer,
The blading is arranged on the inner layer and the outer layer,
The reinforcing fiber oriented in the direction is the middle layer or the middle layer and the inner layer.
2. The method according to claim 1, wherein the inner layer is disposed between or inside the inner layer.
Through fishing rod. 3. The axial length direction fiber has an elastic modulus of 30,000.
kg / mm ² 2. A carbon fiber having a degree of carbon content of about 1 or less.
Or the through fishing rod according to 2. 4. A prepreg to be a highly rigid rod pipe with bending.
Add as little as the tip of the pole and more as the rear, or as a rear bullet
Pre-preg of aligned fibers using highly reinforced fibers
2. The through fishing according to claim 1, wherein
rod. 5. The method according to claim 1, wherein the inner layer and the outer layer have a dense blade.
And reduce the amount of axial fibers in the middle layer.
When the inner layer and the outer layer are coarsely braided,
3. The method according to claim 2, wherein the amount of the axial length fibers in the middle layer is increased.
Through fishing rod.