JP2001120117A - Fishing rod having solid rod - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve the torsional rigidity of a fishing rod having a solid rod. SOLUTION: This fishing rod made of a fiber-reinforced resin including a synthetic resin as a matrix and reinforced with a reinforcing fiber is constituted so as to have the solid rod formed so as to have a solid body 10 forming a core, at least one of a resin prepreg 12 of a paralleled sheet having the reinforcing fiber S1 directed to the nearly shaft length direction, and a resin prepreg of a woven fabric having the reinforcing fiber in one direction directed to the nearly shaft length direction, a resin prepreg 14 of the paralleled sheet having the reinforcing fiber S2 directed to the direction tilted to the shaft direction, and another resin prepreg 16 of the paralleled sheet having the reinforcing fiber S3 directed to the direction tilted to the shaft direction so as to be nearly symmetrical to the reinforcing fiber S2 directed to the direction tilted to the shaft direction.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fishing rod having a solid rod. One rod or joint rod is optional.

[0002]

2. Description of the Related Art A solid solid body obtained by heating and molding a material obtained by impregnating a synthetic resin into reinforcing fibers aligned in the axial direction may be used as a pole as it is, but usually, the surface of the solid body is generally used as a rod. Is ground and formed into a predetermined shape for use. In this case, the reinforcing fibers on the surface of the solid body are cut by grinding. Since the fishing rod is used with a large deflection, if the reinforcing fiber on the surface is cut, the fishing rod is peeled off from the cut fiber portion, easily broken, and has poor durability. In addition, the axially reinforced fibers at positions that greatly contribute to the bending rigidity lose continuity, so that the bending rigidity decreases. Therefore, a solid rod is often formed by winding a fiber-reinforced resin prepreg around the outer periphery of a solid body so that the reinforcing fibers are directed in the axial direction.

[0003]

However, a solid rod has a smaller outer diameter than a tubular rod having the same flexural rigidity. This is also an advantage of the solid rod, but has the disadvantage that, especially when the solid rod is subjected to a torsion action, it is much weaker than a tubular rod because of its small outer diameter. Therefore, when a fishing line guide for guiding a fishing line is mounted on a solid rod, the fishing line guide is turned sideways due to a torsional load when interacting with a fish or the like. In particular, the torsional stiffness is weak at the thin tip, and some of the line guides at the tip are sideways, and the line guide near the hand is normally up. In this case, it is difficult to smoothly pull out and wind up the fishing line from the reel. Therefore, an object of the present invention is to improve the torsional rigidity of a fishing rod having a solid rod.

[0004]

DISCLOSURE OF THE INVENTION In view of the above object, according to the present invention, there is provided a fiber-reinforced resin reinforced with a synthetic resin as a matrix and reinforced fibers, wherein a solid solid body serving as a core and a reinforced fiber are provided. At least one of the resin prepreg of the aligned sheet oriented substantially in the axial direction and the resin prepreg of woven fabric oriented in one direction in the reinforcing fiber in one direction, and the reinforcing fiber in the axial direction. The resin prepreg of the alignment sheet oriented in the inclined direction with respect to the other alignment sheet so that the reinforcing fibers are oriented in a direction substantially symmetric with the reinforcing fibers in the inclined direction with respect to the axial direction. A fishing rod characterized by having a solid rod formed by molding with a resin prepreg. Since the reinforcing fiber is a solid rod oriented in a direction inclined with respect to the axial direction, the torsional rigidity is improved. In addition, since the fiber directions of the two sheets are substantially symmetric with respect to the axial length direction, it is possible to obtain torsional rigidity having substantially no directionality.

According to a second aspect of the present invention, the reinforcing fiber is made of a fiber reinforced resin reinforced with a reinforcing fiber using a synthetic resin as a matrix, and the reinforcing fiber is directed in three directions outside a solid solid body serving as a core. And a solid rod formed by winding a resin prepreg of a three-axis woven fabric, and inclining and shaping the two directions of the reinforcing fibers so as to be substantially symmetric with respect to the axial direction. To provide a fishing rod.
Also in this case, the torsional rigidity is improved by the presence of the inclined direction fibers. In addition, since the fiber directions of both sheets are substantially symmetric with respect to the axial length direction, it is possible to achieve torsional rigidity without directionality.

According to a third aspect of the present invention, the resin prepreg of the aligning sheet or the resin prepreg of the woven fabric in which the reinforcing fibers of the first aspect are oriented substantially in the axial direction is disposed on the outside, and the two-directional aligning in the inclined direction is performed. The present invention provides a fishing rod formed by arranging a resin prepreg of a sheet inside and winding it around the outside of a solid body. Although it is difficult to wind a prepreg sheet oriented in an inclined direction, a resin prepreg sheet oriented in an axial direction or a circumferential direction is easier to wind. Therefore, if the resin prepreg sheet oriented in the axial direction or the circumferential direction is arranged and wound on the prepreg sheet oriented in the inclined direction, it is easy to wind while maintaining the directional accuracy of the fiber in the inclined direction and high quality. Fishing rod can be provided.

According to a fourth aspect of the present invention, the winding start points of the respective resin prepregs of the first to third aspects are shifted from each other, and the resin prepreg having the fiber oriented in the inclined direction is wound around the leading end of the solid body by two plies or more. The former provides a fishing rod formed with the number of turns equal to or less than the number of turns of the former. Since the fibers oriented in the inclined direction are provided at the tip having lower torsional rigidity than the base, at least the torsional rigidity of the tip is effectively improved. In the winding of the prepreg sheet, for example, 2.2 times (or 1.times.).
Either the number of turns is 8) or the number of turns is just two, but it is difficult to make the number exactly the same industrially. Therefore, in the case of 2.2 times, the prepreg sheet is wound more in the area for 0.2 times than in other areas (partial overlap margin state), and the rod is bent at the circumferential position of the rod. Non-uniformity such as rigidity occurs. As described above, it is general that the overlap margin is generated at the leading edge and the trailing edge of the wound sheet, thereby causing uneven rigidity.However, in order to shift the winding start point of each prepreg sheet, a partial overlap margin is required. Even if it occurs, it can be thin. Therefore, the degree of non-uniformity of rigidity such as bending is reduced.

[0008]

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 shows a casting rod in which a solid rod 30 is inserted and fixed in a handle portion. A hollow tube (not shown) is provided inside the handle portion, and the solid rod 30 is inserted and fixed to the hollow tube. The handle portion has a rear grip portion G1 and a front grip portion G2, and a reel mounting portion 28 is provided between them. . A trigger 26 is provided at a rear portion on the opposite side of the reel mounting portion in the radial direction. The front grip G2 serves as both a movable hood for receiving the reel leg and a fastening nut member.

A plurality of fishing line guides G including a top guide at the tip are mounted on the solid rod 30 at the same circumferential position as the reel leg mounting portion. FIG. 2 is a diagram illustrating a method of manufacturing the solid rod 30. First, a solid solid body 10 in which a synthetic resin such as an epoxy resin is used as a matrix and reinforcing fibers such as carbon fibers for reinforcing the matrix are oriented in the axial direction is prepared. This solid body is generally ground after firing and formed into a pre-narrow shape. In order to reinforce this solid body, a fiber reinforced resin prepreg is wound around the outside and fired under pressure.

In this example, the sheet-shaped resin prepreg 12 is wound so that the main reinforcing fibers S1 are directed in the axial direction so as to cover the entire length of the solid body 10. Furthermore,
A sheet-like resin prepreg 14 in which the reinforcing fibers S2 are oriented in the direction of 45 degrees as the inclination angle θ with respect to the axial direction of the solid body, and the reinforcing fibers S3 in which the reinforcing fibers S2 are oriented in the axial direction of the solid body. And a sheet-shaped resin prepreg 16 oriented substantially symmetrically.

In the present application, the shape and size of each of the above resin prepregs, the winding order and the number of times, the type of the reinforcing fibers and the impregnated synthetic resin, etc. are arbitrary. In this example, the sheet-like resin prepregs 14 and 16 are solid bodies. It is wound only on the front end of No. 10. In both cases, the number of turns is 2 or more and 5 or less, and here, the number of turns is two. However, the number of turns is arbitrary. For example, 2
The length L1 of the region to be wound is 300 mm or more, and the rear portion is cut in an inclined shape to prevent a sudden change in flexural rigidity in the axial direction of the solid rod after being wound.
The length L1 is about 1/3 to 1/2 of the total length of the solid body 10.
Although it is good to make it about, it may be longer or shorter.

If the direction of the reinforcing fibers is oriented in the inclined direction, it is difficult to wind the sheet-shaped resin prepregs 14 and 16, so that the reinforcing fiber S 1 of the sheet-shaped resin prepreg 12 in which the reinforcing fibers S 1 are oriented in the axial direction is difficult. It is good to be laminated on the back side and wound together. Both inclined directions sheet-shaped resin prepreg 14,
It is preferred that the prepreg be laminated immediately inside the outermost prepreg, such as the resin prepreg 12 extending substantially the entire length of the solid body 10 without inserting another prepreg between the prepregs 16. Also,
It is effective to shift the winding start points of the prepregs 12, 14, 16 in order to reduce the influence on the non-uniformity of the rigidity in the circumferential position even if a partial overlap margin occurs after winding. .

In this case, the prepreg 12 is first wound around the solid body 10 in the circumferential direction (winding direction).
The edge position of each prepreg in the prepreg stage is such that the prepreg 14 on the back side starts to be wound by delaying the angular position of the prepreg by 45 degrees and the prepreg 16 further disposed on the back side of the prepreg 14 is further delayed by 45 degrees. Are sequentially shifted as shown in FIG. The angle to be shifted (position in the width direction) is not limited to the angle in this example.

The reinforcing fibers used in each of the above prepregs are carbon fibers, and have a longitudinal elastic modulus of 30 ton / mm ² (29
4 kN / mm ² ) fiber is used, and the synthetic resin is an epoxy resin. However, the present invention is not limited to this. Carbon fiber having another longitudinal elastic modulus may be used, or other types of reinforcing fibers may be used. .
The impregnated synthetic resin is an epoxy resin, but may be another synthetic resin. Further, instead of the above-mentioned aligned sheet-shaped resin prepreg 12, a sheet-shaped resin prepreg in which a thin scrim sheet made of glass fiber is stacked on the back side may be used, and reinforcing fibers such as carbon fibers are woven so as to be orthogonal. The woven fabric is oriented such that the fiber direction is oriented in the axial direction and the circumferential direction, and the sheet-like resin prepreg 12 is
Alternatively or together with this.

After the prepregs have been wound in this way, they are pressurized and heated and subjected to post-treatments such as painting to form the solid rod 30 of FIG. Further, the inclination angle θ of the reinforcing fibers of the prepregs 14 and 16 is preferably in a range of 45 degrees ± 15 degrees.
The range may be 5 degrees ± 30 degrees. When changing the inclination angle in the axial direction of the solid rod, the base side is closer to the circumferential direction than the front side. Further, instead of the resin prepregs 14 and 16, a woven fabric in which reinforcing fibers are orthogonal (or oblique) may be used.
Instead of 14 and 16, triaxial woven resin prepregs may be used. Triaxial fabrics are typically oriented in directions where each axis is equally spaced 120 degrees, but may be oriented in other directions.

Since the tip of the fishing rod is particularly thin, the torsional rigidity is low. In order to improve the torsional rigidity by reinforcing this, it is preferable to increase the ratio of the tilt direction fibers to other regions, for example, to increase the tilt direction fiber amount compared to the axial length fiber amount. As the method, solid body 1
The reinforcing fiber of No. 0 may be an axial length direction fiber, and the prepreg wound around the outside may be adjusted so as to increase the number of inclined direction fibers. Of course, the ratio may be smaller than the ratio of the axial length fibers.

In order to improve the torsional rigidity, reinforcing fibers having a high longitudinal modulus may be used in addition to improving the amount and ratio of the fibers in the inclined direction. For example, it is an inclined fiber having a higher longitudinal elastic modulus than the axial fiber. For example, the axial length direction fiber S1 is 30 ton / mm ² (294 kN /
mm ² ), and the inclination direction fibers S2 and S3 are 40 ton /
mm ² (392 kN / mm ² ) or more, preferably 50
ton / mm ² (490 kN / mm ² ) or more.
In order to further improve the torsional rigidity of the thin tip portion, the longitudinal elastic modulus of the fiber in the inclined direction on the tip side should be higher than that on the original side.

When the resin ratio of the resin prepreg of the fiber in the inclined direction is larger than that of the resin prepreg of the fiber in the axial direction,
That is, since the resin of the resin prepreg of the axial length fiber is relatively reduced, the predetermined flexural rigidity is secured while reducing the weight of the resin prepreg layer of the axial longitudinal fiber which greatly contributes to the flexural rigidity, and Since the resin prepreg of the fiber in the inclined direction has a relatively large amount of resin, delamination between both resin prepreg layers can be prevented. If a certain torsion acts, the moment is a one-direction torsion. In this case, a torsional load acts on the one-way inclined fiber of the two generally symmetrical inclined fibers. The layers of the directional fibers in other directions can hardly bear the load. For this reason, a force is generated to cause separation between these layers, but if the amount of resin is increased, this can be prevented by the bonding action. Of course, the magnitude of the resin ratio can be freely reversed.

Resin prepregs 14, 16 of fibers in the inclined direction
Etc. with a thickness of 0.05 mm or less, preferably 0.03 to
When the thickness is reduced to 0.01 mm, the number of windings can be increased when the thickness is set to be the same, and as a result, the fiber can be lengthened, which is preferable from the viewpoint of improving the torsional rigidity. Further, the starting edge and the ending edge of the sheet-shaped resin prepreg are located somewhere on the circumference, but the layer thickness at these positions is different from the layer thickness at the front and rear positions, and the layer thickness at the circumferential position is different. However, the thickness difference can be reduced, and unevenness such as flexural rigidity can be reduced. Of course, it is free to make it thicker than the above thickness.

Before forming into a solid rod 30 by pressurizing and heating according to the manufacturing method described with reference to FIG.
Reinforcement of mesh-like blading or circumferential reinforcement in a part or the whole of the outer surface around which 2 is wound, then pressurized and heated, and finally painted Is also good. If the coating is made transparent or translucent, these reinforcing layers also have a pattern that can be visually recognized from the outside, but coating other than transparent or translucent may be used.

In the solid rod 30 illustrated in FIG. 2, the outermost layer covers the entire length of the solid body, but when the resin prepreg 14 or 16 is the outermost layer, the prepreg is , Delamination and the like occur from here. To prevent this, a fishing line guide G may be attached to the position of the rear end of the prepreg to reinforce it. Further, a tape-shaped resin prepreg, which is narrower than these sheet-shaped resin prepregs, may be wrapped from the outside at the position of the rear end to reinforce, and a fishing line guide G is further mounted thereon. You may. Various loads act on the fishing rod via the fishing line guide, but it is preferable to attach the fishing rod to such a reinforcing portion because damage to the fishing rod due to the load can be prevented.

In order to mount and fix the fishing line guide, usually, the leg of the guide and the rod are wound around the circumference with a line and fixed. Instead of the line winding fixing, a sheet or tape shape is used. The prepreg may be wound and heated to form a fixed layer such that the fiber such as the resin prepreg is oriented in a direction inclined with respect to the axial direction of the rod. In this case, the fixed layer receives the load acting on the fishing line guide. However, since the fibers are oriented in the inclined direction, the fibers can be buffered and the impact can be reduced.

If the longitudinal elastic modulus of the axial direction reinforcing fiber of the solid body 10 and the axial direction reinforcing fiber S1 of the resin prepreg 12 are made substantially the same (difference within 10 ton / mm ² (98 kN / mm ² )), When the flexure occurs, the difference in elongation between the solid body and the resin prepreg layer can be reduced, and delamination can be prevented accordingly. In order to increase the flexural rigidity on the base side of the solid rod than on the front side, it is preferable to wind the resin prepreg 12 or the like having the axial length fibers more in the base side area. For example, the number of turns of the base part is 10 or more, preferably 15 to 30 times. If a member layer such as a resin with high elongation and low elasticity is interposed in the boundary region between the solid body 10 and the resin prepreg (12, 14, 16 etc.),
The peeling from the boundary can be prevented, and a durable fishing rod having a solid rod can be provided.

30cm (or 50cm) from the tip of the fishing rod
Of the fishing line guide (excluding the top guide) within the range of
If the height of the lower end of the inner periphery from the surface of the rod is set to be equal to or less than the outer diameter of the solid rod at the position where the guide is attached (at most three times the outer diameter or less), the torsional torque generated via the fishing line guide is reduced. Can be smaller. As described above, it is preferable that a water-repellent coating is provided on the surface of the low spike region of the fishing line guide, or a smooth protrusion is partially provided to prevent the fishing line from adhering to the rod surface. Also, the inner diameter of the fishing line guide in the above range,
If the diameter is smaller than the outer diameter of the rod at that portion, the torsional torque generated via the fishing line guide can also be reduced.

The torsional rigidity in the distal direction is smaller than the ratio of the decrease in the flexural rigidity in the hand direction from the tip of the solid rod 30 to a predetermined range (for example, a range of 50 cm from the tip) toward the tip direction. By reducing the rate of decline toward
The torsional stiffness of the tip portion having low torsional stiffness is relatively improved. Specifically, as compared with the ratio of decreasing the amount of fiber in the axial direction toward the tip, the reduction rate of the amount of fiber in the inclined direction of the tip is reduced, and the like. Is preferably formed to be larger than the diameter of the front and rear rods so that the spliced state is less likely to slip even when torsion acts. Instead of increasing the diameter, or together with this, a double cylinder is used to increase the fitting area, or to increase the length of the joint portion (for example, to a length of about 5 times or more the diameter) to fit the fitting area May be increased.

As described above, the embodiment shown in FIG. 2 and various additional elements and modifications described based on the embodiment may be arbitrarily combined to form a solid rod.

[0027]

As is apparent from the above description, according to the present invention, the torsional rigidity of a fishing rod having a solid rod can be improved.

[Brief description of the drawings]

FIG. 1 is a side view of a fishing rod according to the present invention.

FIG. 2 is an explanatory view of manufacturing a solid rod included in the fishing rod of FIG. 1;

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 10 Solid body 12 Resin prepreg oriented in the axial length direction 14, 16 Resin prepreg oriented in the inclined direction 30 Solid rod

Claims (4)

[Claims] 1. A fiber-reinforced resin reinforced with reinforced fibers using a synthetic resin as a matrix, and a solid solid body serving as a core and a resin of a drawn sheet in which the reinforced fibers are directed substantially in the axial direction. At least one of a prepreg and a woven resin prepreg in which the reinforcing fibers in one direction are oriented substantially in the axial direction, and a resin in a aligned sheet in which the reinforcing fibers are oriented in an inclined direction with respect to the axial direction. A prepreg, and a solid rod rod molded with a resin prepreg of another aligned sheet so that the reinforcing fibers are oriented in a direction substantially symmetric to the reinforcing fibers oriented in the inclined direction with respect to the axial direction. A fishing rod characterized by having. 2. A triaxial shaft made of a fiber reinforced resin reinforced with reinforcing fibers using a synthetic resin as a matrix and reinforced so that reinforcing fibers are directed in three directions outside a solid solid body serving as a core. A fishing rod having a solid rod formed by winding a woven resin prepreg and inclining and shaping the reinforcing fiber so that two directions of the reinforcing fiber are substantially symmetric with respect to the axial direction. 3. A resin prepreg of a drawing sheet or a woven resin prepreg in which the reinforcing fibers are oriented substantially in the axial direction is disposed outside, and the resin prepreg of the both drawing sheets oriented in the inclined direction is placed inside. 2. The fishing rod according to claim 1, wherein the fishing rod is formed by winding around a solid body. 4. A winding start point of each of the resin prepregs is shifted from each other, and the resin prepreg having the fiber oriented in the inclined direction is wound around the leading end of the solid body by two plies or more, and the leading part is wound by the number of turns of the leading end or less. 4. The fishing rod according to claim 1, wherein the fishing rod is formed.