JP2000093559A - Sport pole member using solid rod - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the sticking feeling or balance feeling in distortion in a solid rod having an outer layer of a fiber-reinforced resin on the outside of a solid core material by using a reinforcing fiber having a specified Young's modulus as most of the reinforcing fiber directed in either one axial direction of the solid core material and the outer layer. SOLUTION: In the manufacture of a sport rod member such as fishing rod, a solid core material 10 is prepared. The core material 10 is thermally molded and cut into a tapered form in which reinforcing fibers are mainly directed in the axial direction. Three kinds of prepreg P1-P3 are successively wound around the core material 10, and thermally molded with pressurization to form a solid rod. The used prepreg P1 has a circumferentially directed reinforcing fiber S2 as a lining and the remainder of an axially directed reinforcing fiber S1. Most of the reinforcing fibers of the prepreg P2 are formed of an axially directed reinforcing fiber S3. As most of the reinforcing fibers S1-S3, a reinforcing fiber having a Young's modulus of 40 ton/mm2 or more is used.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a rod member for sports using a solid rod, and more particularly to a rod member used for sporting goods such as fishing rods, golf club shafts, badminton and tennis racket shafts, and ski poles. .

[0002]

2. Description of the Related Art As a rod member used for sporting goods such as a fishing rod, a fiber reinforced resin is used because of its light weight and high strength, and a hollow tube member is used. Regarding the fishing rod, a solid rod may be used as the head rod, but a hollow tube is used for the rod at other parts.

[0003]

However, since it is a sporting goods, it is used under a strong bending load, and its further improvement in strength is a usual proposition. Therefore, it is required to be more resistant to bending, to improve the tone (stickiness and balance) at the time of bending from the feeling of use, and to improve the slimness or lightness.

[0004] Accordingly, an object of the present invention is to provide a sports rod member which pursues the above object.

[0005]

SUMMARY OF THE INVENTION In view of the above objects, the present invention relates to a solid rod having an outer layer of a fiber reinforced resin outside a solid core material, wherein at least one of the solid core material and the outer layer is provided. A sports rod member using a solid rod, characterized in that most of the reinforcing fibers oriented substantially in the axial direction are reinforcing fibers having a longitudinal elastic modulus of about 40 ton / mm ² or more. I do. The majority means 60% or more, preferably 70% or more, and more preferably 80% or more. The solid rod according to claim 2, wherein the solid rod has an outer layer of a fiber-reinforced resin outside a solid core material of the fiber-reinforced resin,
An average longitudinal elastic modulus of a reinforcing fiber group of the core material oriented substantially in the axial direction varies in a plurality in the axial direction. A sports rod member using a solid rod is provided. .

According to a third aspect of the present invention, there is provided a sports rod member using a solid rod according to the second aspect, wherein the average longitudinal elastic modulus is higher at the hand side than at the front side. 5. A sports rod member using a solid rod according to claim 4, wherein a hollow pipe member is integrated with a front end of the solid rod having a fiber-reinforced resin outer layer outside the solid core material. I will provide a. In Claim 5, a sports rod member using a solid rod according to any one of Claims 1 to 4, wherein the outer layer has a woven fabric, an inclined direction-directed fiber, or a circumferential direction-directed fiber. I do. The sports rod member according to any one of claims 1 to 5, wherein a solid or translucent fiber-reinforced resin layer is provided as the outer layer or outside the outer layer. I will provide a.

In the first aspect, approximately 40 ton / mm ²
Since the reinforcing fibers having a large longitudinal modulus are mainly used as the axial length fibers, a desired flexural rigidity can be secured even if the fiber amount is small as compared with the case where a small longitudinal modulus is used. In addition, the solid rod region can be made thinner, and can be prevented from being crushed when bent, thereby improving the strength. If the solid core material made of fiber reinforced resin is preformed and the surface is ground, etc., the reinforcing fiber will be cut and the strength will be weakened by this. For example, it becomes a solid rod in which the weakness of the surface of the solid core material is reinforced. According to claim 2, in a solid rod having an outer layer of a fiber-reinforced resin outside a solid core material, the average longitudinal elastic modulus of a reinforcing fiber group oriented substantially in the axial length direction of the core material is determined in the axial length direction. , The flexural rigidity of the solid rod can be adjusted by the longitudinal elastic modulus, and a desired tone (stickiness or balance) can be obtained.

According to the third aspect, since the average longitudinal elastic modulus is higher at the proximal side than at the front side, the flexural rigidity at the proximal side is high, and the sporting power of fishing rods, golf club shafts, badminton, tennis racket shafts, ski poles, etc. It becomes an easy-to-use rod member in the article. According to the fourth aspect, since the hollow tube member is integrated with the front end of the solid rod, when the hollow tube member is used on the side opposite to the hollow tube member, the weight can be prevented and the lightness is improved. This is especially true for long rod members such as fishing rods. According to the fifth aspect, since the outer layer has the woven fabric, the inclined direction-directed fiber, or the circumferential direction-directed fiber, the surface of the solid rod can be prevented from being torn, and the strength against torsional load can be improved. . According to claim 6, since a transparent or translucent fiber reinforced resin layer is provided on the outer periphery of the solid rod, if a pattern or the like is drawn on the lower side of the layer, this can be visually recognized and protected, and the layer can be protected. Depending on the thickness, it also has a deep appearance. Furthermore, this layer also serves to reinforce the bending strength of the solid rod.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in more detail with reference to an embodiment shown in the accompanying drawings. FIG. 1 shows a method of manufacturing a sports rod member such as a fishing rod according to the present invention, and FIG. 2 shows a solid rod 8 as the manufactured rod member. FIG. 3C is an enlarged cross-sectional view taken along line CC of FIG.
FIG. 3D is an enlarged cross-sectional view taken along line D-D of FIG. 2. The solid core material 10 has a tapered shape made of a fiber reinforced resin in which a synthetic resin such as an epoxy resin is used as a matrix, and reinforcing fibers such as carbon fibers are mainly directed in an axial direction.
Heat molding is performed in advance, and then the outer periphery is generally ground (cut) to form a tapered shape or the like.

Here, three types of prepregs P1, P2, and P3 are sequentially wound around the outer periphery of the core material 10, and are heated and molded while being pressed, whereby the solid rod 8 of FIG. 2 is formed. Layer P1 ', P
2 ′ and P3 ′ correspond to the prepregs P1, P2 and P3. In this example, the prepreg P1 has a reinforcing fiber S2 oriented substantially in the circumferential direction as a backing, and the rest is the enhanced fiber S1 oriented generally in the axial direction. Prepreg P2
Most of the reinforcing fibers are the reinforcing fibers S3 oriented substantially in the axial direction. The prepreg P3 has the reinforcing fibers S4 oriented substantially in the 45-degree direction, and has other reinforcing fibers S4 'orthogonal to the fibers (oriented in a direction substantially symmetric with respect to the axial length direction). The right side is the hand side, and generally, the reinforcing fiber S3 of the prepreg P2 is the reinforcing fiber S of the prepreg P1.
Select a longitudinal elastic modulus larger than 1.

Unlike the above example, the winding order of each prepreg may be changed, but it is more preferable that the prepreg P3 be located outside. The outer layer 1 is made of any one type of prepreg.
2 may be formed. The number of turns of each prepreg is arbitrary, but if the thickness of the prepreg is about 0.2 mm or less and the total number of turns is 12 or more, preferably about 15 to 30 layers, the outer layer is The thickness of the core 12 can be increased, the ground core 10 can be reinforced, the surface can be prevented from being broken at the time of large bending, and the strength can be increased. In addition, the thin prepreg can easily prevent delamination. Further, it is most preferable that the winding start position and the end position of the prepreg just coincide with each other. However, since the prepreg is thin, even if there is a positional deviation, the deviation of the bending rigidity in the circumferential direction can be reduced. When the winding end position is past the start position, the difference is preferably small, and when the winding end position is on the near side, the difference is preferably small.

It is preferable to make the thickness of the outer layer 12 larger than the radius of the core material, because the fiber ratio can be easily increased, and the thinning and high rigidity can be easily obtained. When winding prepregs of different thicknesses, if a thick prepreg is wound inside, another prepreg will be wound after its end position, so it will be compared to a case where the thick prepreg ends with a misalignment. The deflection rigidity is prevented from being biased. It is preferable to use a backing layer as much as the prepreg inside the outer layer 12 (prepregs P1 and P2 in FIG. 1). However, it may be the outside (prepreg P3) or the whole regardless of the inside or outside.
In FIG. 1, the prepreg P1 is used, and a scrim sheet may be used instead of the layer of the reinforcing fiber S2 oriented in the circumferential direction. When the axial length reinforcing fibers S1 are carbon fibers, the backing fibers S2 are carbon fibers, and when the backing is a scrim sheet, it is preferable to use a glass fiber scrim sheet. With such a backing fiber, meandering of the reinforcing fiber in the axial direction due to shrinkage at the time of heat molding and waving and displacement of the layer can be prevented, and the winding operation becomes easy.

The longitudinal elastic modulus (hereinafter, elastic modulus) of each reinforcing fiber including the core material can be arbitrarily selected from a range of about 1 to 90 ton / mm ² (hereinafter, may be abbreviated as t). Unless otherwise specified, the elastic modulus will be described for the main axial length fiber. The following techniques may be used in combination. Most of the axial length reinforcing fibers of the core material 10 are made of carbon fibers to have a high elastic modulus of about 40 t or more, and the outer layer 12 is made of carbon fibers to have an elastic modulus of about 20 to 40 t (which is also higher strength) at the hand side. If the number of turns is in the range of 15 to 30, a high-strength rod member such as a thin and sticky rod can be obtained. The stickiness is, of course, a condition in which the material does not break even if it is greatly bent, but gradually returns to the original state at a slow deformation speed. Even if the elastic modulus is reversed between the core material and the outer layer, a rod member such as a high-strength rod that is slender and sticky despite its high flexural rigidity (the same applies to rigidity).

When the elastic modulus of the reinforcing fiber of the core material and the reinforcing fiber of the outer layer is made substantially the same (difference within about 15%) and selected in the range of 35 to 60 t or 16 to 36 t, the material is prevented from being bent at the time of heat molding. It is also possible to prevent delamination between prepregs. When carbon fibers are used, the inner layer of the outer layer 12 is made to have a high elasticity of 50 t or more, and the outer layer is made to have a relatively low elastic modulus (20 to 40 t). High strength can be achieved. Conversely, the elasticity can be increased toward the outside, and in this case, the bending rigidity can be increased and the body can be easily made thin.

The core material 10 is tapered to have an elastic modulus of 1
When a prepreg of a high elastic modulus reinforcing fiber higher than the core material is mainly used for the outer layer and wound around the outer layer so that the hand side becomes thicker, the outer layer becomes more easily bent, The condition as a material becomes good, and the base side can be made high strength and high rigidity. 20 to 4 in the low elasticity reinforcing fiber of the core material
If 0t of high-strength reinforcing fiber is mixed, the fiber is easily bent and hardly damaged. The reinforcing fiber of the prepreg used for the outer layer has an elastic modulus of 10 to 19 t and a tensile strength of 35 to 35 t.
Fiber of about 0 kg / mm ² or more and elastic modulus of 20-4
0t high-strength reinforcing fibers can be used.

The outer layer can be made thinner and lighter by increasing the proportion of the highly elastic reinforcing fibers closer to the hand side. Since synthetic resin does not contribute much to flexural rigidity,
If the synthetic resin ratio is made smaller in the high elasticity fiber region,
On the other hand, if the synthetic resin ratio is increased in the high elasticity reinforcing fiber region (for example, 30 to 50 wt% (wt means weight) in the highest elasticity region), When the value is smaller than the value of the high elasticity region, the separation between fibers or between layers when the material is largely bent can be reduced. When a woven fabric layer having a low elastic modulus and a high elongation is formed on the outermost layer of the outer layer, even if the inner layer is a highly elastic layer, peeling and tearing from the surface can be prevented. For example, a woven fabric layer using glass fiber, polyetherimide (PEI), carbon fiber having an elastic modulus of 26 t or less, or the like. When the woven fabric layer having a low elastic modulus and a high elongation is provided at the position near the length of the rod tube, it is effective to prevent peeling and tearing.

In the core material 10 and the outer layer 12, in the region where the reinforcing fibers are substantially aligned in the axial direction, if all the aligned fibers are carbon fibers, since the fibers are of the same type, the difference in linear expansion coefficient is different. And the material can be prevented from bending during heat molding.
When a synthetic resin film or a rubber material film is wound between the core material 10 and the outer layer 12, or when the outer periphery of the core material 10 is coated with a synthetic resin such as an elastomer resin and then heated and formed, the boundary layer becomes a stress relaxation layer. In addition, delamination is prevented even when a large flexure is caused, and in addition to being hardly damaged, the rod condition becomes soft as a rod. This boundary layer forms a layer with a material having higher elongation than both the core material and the outer layer.

A layer of reinforcing fibers oriented in the inclined direction is provided somewhere on the core material 10 or the outer layer 12, and preferably a layer in which the reinforcing fibers are oriented and intersected in two inclined directions symmetrical with respect to the axial direction. I do. The inclination angle is preferably about 45 degrees, and is an angle in a range of 45 degrees ± 15 degrees. Thereby, torsional strength and torsional rigidity are improved. In addition, even if a layer in which the reinforcing fibers are directed substantially in the circumferential direction is provided, the torsional strength and the torsional rigidity are improved in combination with the axially oriented layer. It is preferable to use a woven fabric or a knitted layer. Preferably, these layers are provided on the outermost side to effectively improve torsional rigidity and strength.

The core 10 has a high synthetic resin ratio and the outer layer 12
If the ratio of the synthetic resin is low, the toughness of the solid rod can be increased as compared with the case where it is not. This is because natural bamboo sticks, but this bamboo has a lot of fibers on the outside,
It can also be seen from the fact that there are few inside, the base material is many inside, and the outside is few. Furthermore, if the ratio of the synthetic resin is increased as the outer layer 12 is further increased, the fluid synthetic resin material sufficiently extrudes the bubbles to the outside during the heat molding, leaving no trace of the bubbles on the surface and preventing breakage therefrom. Is done. There is a resin ratio of more than 40 wt% or more than 30 wt%.

When the synthetic resin ratio of the low-elasticity reinforcing fiber layer as a whole, including the core material and the outer layer, is increased, the flexural rigidity is reduced by that amount, so that the flexural fiber is easily flexed. 45
wt% or more, or 35 wt% or more. When the resin ratio of the core material is kept low, it can be increased to about 28 wt% or more. Above, paragraph number 000
The contents described in 9 to 0020 may be arbitrarily combined with each other as long as they do not conflict with each other. For example, paragraphs 0010 to 0016 regarding the elastic modulus,
May be arbitrarily combined with one another regarding the stress relaxation and flexibility, the item regarding the inclination angle of 0018, and the item regarding the resin ratio of 0019 and 0020.

FIG. 4 shows a case where a joint 8T is provided at the rear end of the solid rod 8 'as shown in FIG.
A manufacturing method of integrally forming using a prepreg to be wound is shown. As in the case of FIG. 1, the front end face of the core 20 is brought into contact with the rear end face of the solid core material 10 formed in advance. The outer periphery 20 </ b> T of the front end of the core is tapered to a diameter smaller than the rear end of the solid core 10. The rear end of the solid core material 10 and the front end 20T of the cored bar
Then, the reinforcing prepreg HP such as a woven cloth is wound, and thereafter, the prepregs P1, P2, and P3 are wound. The prepregs P1 and P2 have reinforcing fibers oriented substantially in the axial direction, and the prepreg P3 has a bag-like shape oriented in the inclined direction.

The prepregs P1 and P2 may be provided with, for example, a backing so as to have reinforcing fibers oriented in the circumferential direction, as in the case of FIG. Prepreg P3 is 2
It may be one in which a plurality of aligned sheets are overlapped so as to be symmetrical with respect to the axial direction, or may be a prepreg in which the reinforcing fibers are oriented in the circumferential direction. The core material 10 is substantially straight up to the middle, and its tip is tapered.
This region is processed by grinding or the like to cut the reinforcing fibers. Therefore, if the prepreg P1 is covered up to the front end as shown in FIG. 4, the core material 10 can be prevented from being broken due to tearing or cracking, but the leading end may be exposed. If it is exposed, the diameter becomes smaller and it becomes easier to bend.

FIG. 6 shows the core material 10 having a small diameter on the proximal side and a large diameter on the front side, and then has a thin shape. The outer layer 12 has a thicker proximal portion and a thinner distal portion. The tapered solid rod 8 is shown. In this embodiment, when high modulus fibers are used for the outer layer 12 and the core material 10 has a lower modulus than the outer layer, but high strength reinforcing fibers (20 to 40 t) are used,
The tip portion can be easily bent greatly and high strength can be obtained, and the base side can be made high rigidity, so that a solid tone can be formed. In addition, the base side where the rigidity needs to be increased can be made thinner, which contributes to weight reduction and improves operability.

Conversely, using a high modulus fiber for the core material 10,
The outer layer 12 is provided with reinforcing fibers (20
Use of ｔ40t) makes it possible to effectively bend the base side effectively and increase the strength, to effectively reduce the thickness and weight of the tip part, and to prevent the rod from lifting. Also, sharp tone can be obtained. In FIG. 6 described above, the taper state of the core material 10 is set to be constant, but the taper ratio may change in the middle, or may change stepwise.

FIG. 7 shows that the core material 10 is formed by a small diameter portion 10D on the hand side, an enlarged diameter portion 10C, a tapered portion 10B, and a tapered tapered portion 10A.
Except for, the hand side of the solid rod 8 on which the outer layer 12 is formed is 3 /
It is 1000 or less or straight, and forms a tapered solid rod as a whole. However, the shape is arbitrary, and a bulge may be formed in the middle. In this example, the small diameter portion 10D is formed smaller than the minimum portion of the tapered portion 10A. When the outer layer 12 uses a reinforced fiber (for example, 35 to 90 t) having a higher elastic modulus than the core material, and the core material 10 uses a reinforced fiber having a lower elastic modulus and a high strength (1 to 50 t) as shown in FIG. The same effect as in the case of No. 6 can be obtained effectively.

FIG. 8 shows a straight portion 10C at the proximal end, a reduced diameter portion 10B at the front side, and a straight or small tapered portion 10A in front of the core 10 and the straight portion 10C. 1 shows a solid rod 8 provided with an outer layer 12 by prepreg. The straight portion 10C of the hand portion may be a fitting portion for a component such as a gripping member. By using a reinforcing fiber having a higher elastic modulus than the core material 10, the outer layer 12 can be made thinner and lighter, and the operability is improved. Conversely, the outer layer 12 has a lower elastic modulus than the core material 10, and can be made into a sticky solid rod by using a high-strength reinforcing fiber having an elastic modulus in the range of 20 to 40 t. Note that the outer layer may be formed over the entire length of the core material, and the tip may be exposed in addition to the base 10C.

FIG. 9 shows a structure in which first, second, and third core material elements 10a, 10b, and 10c are integrally joined together to form a core material 10 and an outer layer 12 is provided on the outer periphery thereof. The actual rod 8 is shown. In the order of the first, second, and third core elements, the elastic modulus of the reinforcing fiber in the axial direction or the longitudinal elastic modulus of the core element material is set to be large. It is easy to bend and the bending rigidity can be increased toward the base portion, and it is easy to obtain a rod member such as a rod rod at the front end. Further, if the elastic modulus of the element of the base is set to be in a high strength range (20 to 40 t), the strength is stable even if the base is largely bent. In addition, conversely, the first, second, third
The elastic modulus is reduced in the order of the core material elements, and the elastic modulus near the base is set so as to be in a high strength range (20 to 40 t).
As for the thickness of the outer layer 12, if the base side is made thicker, the tip part can be made small in diameter and sharp, and the base side can be stabilized in strength.

In the above example, the elastic modulus is changed in three stages, but may be changed in two stages or four or more stages. Furthermore, the outer layer 12
The elastic modulus may be different or the thickness may be changed from the front side to the base side of the base. Also, the joints 10S and 10S '
Is configured so that the elements before and after gradually change. That is, taking the joint 10S as an example, the rear end of the element 10a is a truncated cone-shaped hole, the wall of which is gradually thinned toward the rear, and the front end of the element 10b is truncated conical. The diameter is reduced forward. Therefore, a sudden change in flexural rigidity according to the difference between the front and rear elastic moduli is mitigated in the joint portion 10S, the flexure curve of the solid rod 8 becomes smooth, and stress concentration at this portion is prevented, and Become strong. Furthermore, since the joint structure does not change at the angular position around the center axis of the solid rod, there is no deviation in the bending rigidity at the angular position, and the solid rod 8 is easy to use. The method of manufacturing the solid rod 8 is the same as that described with reference to FIG. 1 except that the core 10 has the above structure.

FIG. 10 shows an embodiment of a core material for obtaining the same bending characteristics as the solid rod shown in FIG. Large diameter part 10c '
The middle diameter part 10b 'and the small diameter part 10a' are reduced to a reduced diameter part 10T '
And 10T, and the same bending characteristics as the solid rod shown in FIG. 9 can be obtained even when the reinforcing fibers having the same elastic modulus are used as a whole, but the large diameter portion 10c ′, the medium diameter portion 10b ′, If the elastic modulus is reduced in the order of the small diameter portion 10a ', the tip portion is more easily bent. Since this is the core material 10, it may be a solid rod having an outer layer provided by prepreg on the outside thereof.

The material of the core material used in the embodiments shown in the above figures is a fiber-reinforced synthetic resin (the reinforcing fibers are inorganic fibers or organic fibers such as glass, carbon, boron, alumina, aramid, metal, etc.) Synthetic resin materials, metal materials, and natural materials such as wood and bamboo can be used. When a material having poor adhesion to the prepreg of the outer layer is used for the core material, surface treatment such as surface roughening and coating of a film may be performed to improve the adhesion. The elastic modulus of the reinforcing fiber of the prepreg of the outer layer is in the range of about 1 to 90 t for carbon fiber, and it is preferable to use only the same type of fiber, for example, only carbon fiber, in order to prevent bending of the material during heat molding. Alternatively, other materials can be optionally used.

The following specific gravity requirements can be weighted in the embodiments shown in the above figures, and the following specific gravity requirements can be weighted irrespective of the elastic modulus of the fiber in each embodiment. The specific gravity of the core material is made smaller than the outer layer to reduce the weight, improve operability, reduce the specific gravity of the material at the front end of the core material from the original side, prevent weight holding, tone balance and weight To adjust the balance, a specific range in the length direction,
At a specific position in the radial direction of the solid rod, a material having a specific gravity different from that of the other portions (a member having a large specific gravity is preferably 8 g / cm3 or more) is used.

In the embodiment shown in each of the above figures, a lighter solid rod having higher elasticity can be obtained by reducing the synthetic resin ratio in a portion where a reinforcing fiber having a higher elastic modulus is used. If the outer layer is present, the synthetic resin ratio of the core material is set to a smaller value, for example, 28 wt% or less than that of the outer layer. In addition, when the ratio of the synthetic resin in the core material and the outer layer is approximated, peeling and breakage from the interlayer can be easily prevented.

FIG. 11 shows an embodiment of the core material 10 of a solid rod. (A) is an example in which a foamable material is used as a core material, (b) is an example in which two core material elements 10 ′ and 10 ″ in the radial direction are formed of materials having different characteristics, and (c) () Is an example in which the core material 10 is formed of a reinforcing material 10E such as a plurality of particles or a plurality of reinforcing fiber bundles and a base material 10M filled in these gaps. It is also a variation,
Materials having various characteristics may be used for each of the four divided areas, but here, the core material elements 10 'and 1
0 'is the same material, and the other diagonal core material elements 10 "and 10" are the same material.

In the above (b) and (d), the bending characteristics differ depending on the angular position (they cause a directionality). In addition, as shown in FIG. 9, as a core material having directivity, when a plurality of core material elements are spliced, there is a case where, unlike in the case of FIG. At the joint, similar to FIG. 11B, different materials face each other in the radial direction, so that directivity is generated. In addition, if the core material is deviated in the solid rod, the direction of bending generally occurs. However, the elastic modulus of the core material and the elastic modulus of the outer layer are
The directionality of the deflection can be reduced or eliminated by selecting each of the predetermined values.

FIG. 12 shows a sports rod member 18 made of fiber reinforced resin in which a hollow tube member is integrated with the tip of a solid rod.
A description will be given of the manufacturing procedure.
The outer periphery of 0K is formed in a slightly stepped small diameter portion, and a previously formed tube member 14 is temporarily fixed to the small diameter portion 10K by bonding or the like. A prepreg for reinforcement (similar to the HP in FIG. 4) is wound around the joint. In this example, one or more prepregs are wound from the rear end of the core member 10 to the middle position of the tube member 14, and the outer layer 12 is formed by heat molding while applying pressure. The reinforcing prepreg forms a reinforcing layer HP ′. The prepreg used for the outer layer 12 is the same as that described in the above embodiments such as FIG.

This rod member 18 can be used as a single rod or a joint of a connecting rod. When used as a single rod or a head rod, as an example, a loose taper of 5/1000 or less is formed between the region of the hollow tube member and the intermediate position of the solid rod at the rear thereof. It is good to form a straight shape of 1/1000 or less from to the rear end of the solid rod. Further, when the range of the hollow tube member is formed to be about 30 to 60% from the end of the entire length, the weight can be prevented and the operability is improved.

The core material 10 is made of a fiber-reinforced resin mainly composed of reinforcing fibers in the axial direction, but is not limited to this, and may be a synthetic resin rod member, a natural material such as bamboo or wood, or a metal. Is also good. When the outer layer 12 is present, the core 10 is made of a foaming material having a lower specific gravity than the outer layer or a low specific gravity synthetic resin, so that the weight can be reduced, and the rod member for a fishing rod excellent in operability without holding weight is provided. Becomes

The range of the outer layer 12 in the longitudinal direction is arbitrary. For example, the outer layer 12 may have only a core portion or a structure without an outer layer. It is preferable that the pipe member 14 is mainly made of high-strength carbon fiber (having an elastic modulus of 20 to 40 t or 20 to 50 t). Further, the core member 10 can be made thinner and lighter by using fibers having a higher elastic modulus than the tube member 14. The prepreg of the outer layer 12 may use a reinforcing fiber having an elastic modulus of 20 to 90 t or a fiber having a lower elastic modulus. When the outer layer 12 is formed of a plurality of prepregs, the first prepreg has an elastic modulus substantially equal to the elastic modulus of the axial direction reinforcing fiber of the pipe member 14, or
By setting the difference to t or less, the bending condition of the rod member 18 can be improved, delamination can be prevented, and the bending load can be distributed and shared by all the prepreg layers in the radial direction, and the strength can be improved by that amount. .

FIG. 13 shows a longitudinal section of a fiber reinforced resin sports rod member 18 'in which a solid rod and a hollow tube are integrated. In the same manner as the manufacturing method shown in FIG.
The end of the metal core is brought into contact with one end of the core 0, and various kinds of desired prepregs are wound therefrom and heated to form a metal core. The outer layer 12 is formed over the length of the core material 10 to form the hollow tube 16. The boundary portion KZ between the solid rod portion and the hollow tube portion is formed in a form as shown in the drawing, and for the same reason as described with reference to FIG. Concentration is prevented. Either left or right may be forward, and the taper may be in any direction. Outer layer 1
In the case of No. 2, if it is configured to have reinforcing fibers crossing in the inclined direction in an angle range of about 45 ° ± 15 °, it is strong against torsion as in the other embodiments.

FIG. 14 shows a solid rod 8 as another sports rod member made of fiber reinforced resin. As the solid core material 10, the same material as that of the above-described embodiment example such as FIG. 1 can be used, but another material may be used. The layers P1 ′ and P2 ′, which are part of the outer layer 12 and are outside the core material, can be made of the same material as the above-described embodiment such as the prepregs P1 and P2 in FIG. The same may be used, but other than that is optional. The meaning of the layers P1 'and P2' is that the prepregs P1 and P2
2 means that both layers may be used or only P1 may be used. As in the case of FIG. 1, it may be formed by a prepreg of one-way aligned fibers, or a prepreg having a thin glass scrim sheet or an orthogonally aligned sheet layer on the back.

The inclined layer P3 "outside the layers P1 'and P2' has a width of about 2 to 20 mm and a thickness of 0.01 to 0.01 mm.
It is formed by spirally winding a prepreg in the form of a narrow tape of about 0.12 mm. This tape is made of a fiber reinforced resin like each of the above-described prepreg sheets, and carbon fiber having an elastic modulus of about 1 to 90 ton or a fiber exceeding the carbon fiber can be arbitrarily used. Further, synthetic resin fibers such as glass fibers and aramid fibers can be used. The synthetic resin is an epoxy resin or the like, and the resin ratio is 5 to 60 wt.
%, Preferably 20 to 50 wt%. When the resin ratio is made larger than the layers P1 'and P2' mainly composed of the fibers in the axial direction (for example, 28 to 60% by weight), it is possible to prevent the openings and delamination between the fibers and to prevent the generation of bubbles. , The appearance is improved.

The layer P 3 ″ may be a single unidirectionally inclined fiber layer, or may be a layer wound in the cross direction of the upper and lower two layers. The angle of the solid rod 8 with respect to the radial direction orthogonal to the axial direction of the solid rod 8. Then, the inclination angle is 45 ± 30 degrees, preferably 45 ± 30 degrees.
If the angle is set to 20 degrees, the torsional strength is improved, and the circumferential components of the layer prevent the fibers in the longitudinal direction of the layers P1 'and P2' from tearing in the longitudinal direction, and can withstand large bending.
In particular, when the layers are arranged in two intersecting directions of the upper and lower layers so as to be symmetrical with respect to the axial direction, the torsional strength is not biased and the solid rod is well-balanced. In order to improve this torsional strength,
It is preferable to use a reinforcing fiber having a higher elastic modulus than the layer mainly composed of the core material or the axial length direction fiber.

The layer P3 ″ is a layer P mainly composed of fibers in the axial direction.
1 'and P2' are preferably provided outside the layer P.
1 'and P2', or between the layers P1 'and P2' and the core material 10. In the longitudinal direction of the rod, the ratio of the fiber in the longitudinal direction and the fiber in the axial direction is preferably such that the ratio of the fiber in the axial direction is larger at the base of the rod.

When the narrow tape is spirally wound to form a layer, the tape has a large width (long in the axial direction) as shown in FIG.
As compared with the case where the prepreg sheet P3 or the like is wound, a uniform layer can be formed in the circumferential direction. In other words, (narrow) tape is long and can be wound continuously in a spiral,
Although the occurrence of cuts and seams in the circumferential direction can be prevented, in the case of a (wide) sheet, instead of being continuously wound spirally, it is simply wound once or twice or more in the circumferential direction. At the end of the turn, a circumferential cut occurs, and it is difficult for the start and end of the winding to coincide with each other in the circumferential direction. It becomes uneven in the direction.

Therefore, characteristics such as rigidity and strength are non-uniform in the circumferential direction of the rod. In particular, if the reinforcing fibers have high elasticity, the non-uniformity in the characteristics becomes large. Therefore,
In the case of a tape, nonuniformity in rigidity and strength can be prevented even when a highly elastic reinforcing fiber is used. It is easy to use a reinforcing fiber having an elastic modulus of 40 t or more. However, a low-elasticity reinforcing fiber may be used, for example, the elastic modulus of the layer mainly composed of the axial-direction fibers may be lower than that of the axial-direction fibers.

As a spiral winding mode of the tape, there is a magnitude of the pitch. Open the tape so that the edges in the width direction of the tape do not overlap, wind it just so that there is no gap between adjacent edges, or wind it so that the edges overlap. is there. If it is wound just so that no gap is formed, a uniform reinforcing layer can be formed in the longitudinal direction of the rod. As shown in FIG. 14, if the rod is positioned outside the outer layer 12 and wound at a pitch where a gap is formed, the appearance is changed and the appearance is improved. In addition, even if winding is performed while overlapping the end edges, the appearance is changed and the appearance can be improved. In any case, the layers may be wound in two layers in an intersecting manner. In this case, a rhombic pattern is formed, and the appearance can be improved. Therefore, by changing the color of the tape and the type of the fiber in such a winding form, the appearance pattern can be further improved. Furthermore, the direction of the reinforcing fibers of the tape is parallel to the longitudinal direction of the tape, is inclined, or is formed by crossing the inclined shapes, or a part of the reinforcing fibers in each direction. Different colors and thicknesses contribute to improved appearance.

If the diameter of the material to be wound on which a tape having a predetermined width is to be wound is large so that the tape is wound and the adjacent tape edges do not overlap, the tape inclination angle is increased. It is possible without it, but if it is small,
The tilt angle must be increased. Mainly for the purpose of reinforcement to prevent longitudinal tearing of the longitudinal fiber layer,
The smaller the tape winding direction angle (the closer to the circumferential direction, the better), the smaller the tape width. In particular,
It is preferable to use a tape having a width smaller than the outer diameter of the rod material to be wound, but other tapes may be used. In the case of a slender solid rod with a diameter of about 10 mm or less, the tape width is 12 mm or less,
Preferably, it is a tape-shaped prepreg having a thickness of 10 mm or less, a thickness of 0.1 mm or less, and an inclination angle of 15 degrees or less.

The surface of the sports rod member of each of the above embodiments is subjected to various surface treatments such as patterning, painting, coating of a fluorescent material, plating, and dry plating, and a transparent or translucent fiber reinforced by a prepreg from above. When the synthetic resin layer is formed, the pattern and the like can be protected, and a deep appearance can be obtained by the thickness of the transparent layer. Further, the presence of this transparent layer makes it possible for the sports rod member to be more resistant to large deflection and to be a sticky rod member. Further, this transparent layer may be formed as an outer layer in each of the above embodiments, and the same effect is obtained. The reinforcing fibers of the transparent or translucent layer may be short fibers in addition to long fibers, and examples of the material include glass fibers, quartz fibers, and organic transparent fibers.

[0049]

According to the present invention, it is possible to provide a rod member that is resistant to bending, a rod member with improved stickiness and balance during bending, and a rod member that is thinner or more lightweight.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram of a method of manufacturing a sports rod member according to the present invention.

FIG. 2 is a longitudinal sectional view of the sports rod member manufactured in FIG. 1;

FIG. 3 is an enlarged cross-sectional view taken along lines CC and DD of FIG. 2;

FIG. 4 is an explanatory view of a method of manufacturing another sports rod member.

FIG. 5 is a partial cross-sectional view of the sports rod member manufactured in FIG. 4;

FIG. 6 is a longitudinal sectional view of another sports rod member.

FIG. 7 is a longitudinal sectional view of another sports rod member.

FIG. 8 is a longitudinal sectional view of another sports rod member.

FIG. 9 is a longitudinal sectional view of another sports rod member.

FIG. 10 is a side view of another form of the core material.

FIG. 11 is various cross-sectional views of a sports rod member.

FIG. 12 is a longitudinal sectional view of another sports rod member.

FIG. 13 is a longitudinal sectional view of another sports rod member.

FIG. 14 is a longitudinal sectional view of another sports rod member.

[Explanation of symbols]

 10 core material 12 outer layer

Claims (6)

[Claims] 1. A solid rod having an outer layer of a fiber-reinforced resin outside a solid core material, wherein at least one of the solid core material and the outer layer has at least one of reinforcing fibers oriented substantially in the axial direction. A sports rod member using a solid rod, characterized in that most of the reinforcing fibers have a longitudinal elastic modulus of approximately 40 ton / mm ² or more. 2. In a solid rod having an outer layer of fiber reinforced resin outside a solid core of fiber reinforced resin, the average longitudinal elastic modulus of a group of reinforcing fibers oriented substantially in the axial direction of said core is ,
A sports rod member using a solid rod characterized by a plurality of changes in the axial direction. 3. The sports rod member using a solid rod according to claim 2, wherein the average longitudinal elastic modulus is higher at the hand side than at the front side. 4. A sports rod member using a solid rod, wherein a hollow pipe member is integrated at the tip of a solid rod having an outer layer of a fiber-reinforced resin outside a solid core material. . 5. A sports rod member using a solid rod according to any one of claims 1 to 4, wherein the outer layer has a woven fabric, a directional fiber, or a circumferential directional fiber. 6. A sports rod member using a solid rod according to claim 1, wherein a transparent or translucent fiber reinforced resin layer is provided as the outer layer or outside the outer layer. .