JPH1075688A - Laminated pipe for fishing rod or the like and its production - Google Patents

Abstract

PROBLEM TO BE SOLVED: To exactly transmit the vibration of a strike to the grip of a fishing rod. SOLUTION: In forming a laminated pipe for a fishing rod, etc., by winding a prepreg sheet 3 for forming the laminated pipe on a mandrel 1, a reinforcing fiber bundle 2 arranged in parallel at least in one direction in width corresponding to an angle α of 5 degrees to 40 degrees of the circumference of the laminated pipe in a zone along the whole length in the shaft direction is arranged on the inner periphery or an outer periphery or at the middle between the inner and the outer peripheries. Consequently, the rigidity of only a part in the peripheral direction of the laminated pipe is raised, the vibration direction of the laminated pipe is controlled to a fixed direction to exactly transmit the vibration of a strike to the grip of a fishing rod.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a laminated tube used for fishing rods and the like and a method for producing the same.

[0002]

2. Description of the Related Art A conventional fishing rod is prepared by preparing a metal core having a diameter gradually reduced from a base end to a tip end, and impregnating synthetic fibers with a reinforced, woven or braided reinforcing fiber. A prepreg sheet for forming a laminated tube is prepared by, for example, cutting the sheet into a predetermined shape, and the prepreg sheet is sequentially wound around a cored bar, and is then pressed and fired by a conventional method.

[0003]

A fishing rod needs to accurately transmit the movement of the fish transmitted through the fishing line to the angler's palm. One of the conditions for a good fishing rod is that a human being has a different frequency depending on the fish. It is required to transmit to the hand without replacing, amplifying and dispersing to the frequency that is most easily felt. With the advancement of technology in recent years, designing a fishing rod that replaces the frequency of fish with a predetermined frequency (hereinafter referred to as "natural frequency") requires the type, amount, and arrangement of reinforcing fibers, and the amount of impregnated resin. Prospects are being established by selecting the type and amount.

However, in order to transmit the vibration given by the fish to the hand without dispersing and disappearing, it is necessary to make the rigidity in the circumferential direction of the fishing rod uniform and keep the amplitude direction constant. It is very difficult to mass produce such a fishing rod by the above-described manufacturing method.

That is, when the prepreg sheet is wound around a tapered cored bar, the direction and amount of the reinforcing fibers vary depending on the location, and the amount of the impregnated synthetic resin also varies. Such unevenness in the circumferential rigidity of a laminated pipe such as a fishing rod due to unevenness of the reinforcing fibers and synthetic resin is shown in FIG.
Appears like (A). A portion indicated by reference numeral a in FIG. 12A is a portion having high rigidity. When vibration is applied to such a laminated tube 6 in the Y direction as shown in FIG. 12 (B), the tip of the tube performs a circular motion, and as a result, the vibration caused by the fish is dispersed and reached before reaching the hand of the rod. It disappears, and the angler cannot accurately catch the vibration.

According to tests and studies by the present inventors, even in the above-described conventional laminated tube, the natural frequency is not impaired by intentionally increasing the rigidity of only a part in the circumferential direction. It has been clarified that the vibration transmission can be improved by keeping the amplitude direction constant. As a means for increasing the rigidity of only a part of the laminated tube in the circumferential direction, it is conceivable to add reinforcing fibers to the laminated tube along the longitudinal direction.

[0007] The present applicant has disclosed that a fiber is added to only a part of the circumferential direction of a laminated tube in the longitudinal direction.
No. -40902 and Japanese Utility Model Publication No. 4-22996. The laminated pipe disclosed in Japanese Utility Model Publication No. 4-40902 discloses a thread, sheet, or cloth made of a fiber similar to the reinforcing fiber on an outer peripheral surface of a laminated pipe body formed by reinforcement with high-strength, high-elasticity fibers. It is arranged linearly over the entire length in the axial direction or in a predetermined range of the end to be integrated. However, the fiber added to the laminated pipe disclosed in Japanese Utility Model Publication No. 4-40902 is intended to be used as a mark for aligning the joining direction of the rod pipe with a different color from the other parts. It needs to be moderately thin. Therefore, it cannot be a means for determining the amplitude direction by increasing the rigidity of only a part of the laminated tube in the circumferential direction. Further, the laminated pipe disclosed in Japanese Utility Model Publication No. 4-22996 has a greater amount of fiber than the laminated pipe body within a range extending in the axial direction by a width corresponding to an angle of 60 to 140 degrees around the circumference. The amount of fiber is added. However, actual fairness 4
As in the laminated tube of Japanese Patent Application Laid-Open No.
When added at a width of an angle of degrees to 140 degrees, the rigidity as a rod pipe increases, but it becomes difficult to set the amplitude direction in the circumferential direction of the rod pipe constant, and in the case of a soft laminated pipe, Cracks tend to occur on both sides of the fiber arranged at an angle.

An object of the present invention is to provide a laminated tube having a good vibration transmission property with a constant amplitude direction in the circumferential direction of the laminated tube based on the above findings.

[0009]

According to the present invention, there is provided a laminated pipe such as a fishing rod formed by winding a prepreg sheet 3 for forming a laminated pipe having a reinforcing fiber impregnated with a synthetic resin around a cored bar 1. At least in one direction within a range extending along the entire length in the axial direction at a width corresponding to an angle α of 5 ° to 40 ° around the circumference of the laminated tube, at an intermediate position between the inner periphery, the outer periphery, or the inner periphery of the laminated tube. The present invention relates to a structure of a laminated tube 5 such as a fishing rod in which the rigidity of only a part of the laminated tube in the circumferential direction is increased by arranging the reinforcing fiber bundles 2 aligned to each other. Is applied to at least one direction within a range extending over the entire length in the axial direction with a width corresponding to an angle α of 5 ° to 40 ° of the circumference of the core 1 on which the core 1 is coated. A reinforcing fiber bundle 2 is arranged, and a synthetic resin is contained in reinforcing fibers around the cored bar 1 and the reinforcing fiber bundle 2. The present invention relates to a method for manufacturing a laminated pipe 5 such as a fishing rod, which is formed by winding a immersed laminated pipe forming prepreg sheet 3 and then pressurizing and firing the same by a conventional method. The invention of claim 3 applies a release agent and an adhesive. A prepreg sheet 3 for forming a laminated tube, in which reinforcing fibers are impregnated with a synthetic resin, is wound around the outer periphery of the cored bar 1, and between the outer periphery or the inner periphery of the wound layer, 5 to 40 degrees of the circumference of the layer. A laminated pipe such as a fishing rod or the like, in which a reinforcing fiber bundle 2 aligned in at least one direction is disposed within a range extending over the entire length in the axial direction with a width corresponding to the angle α, and then pressed and fired by a conventional method. The method according to claim 5, wherein the reinforcing fiber bundle 2 is formed by combining the reinforcing fibers 2a aligned in one direction with the other reinforcing fibers 2b so as to intersect.
The present invention relates to a method for manufacturing a laminated pipe 5 such as a fishing rod according to any one of claims 2 and 3, wherein the prepreg sheet 2c is obtained by impregnating reinforcing fibers 2a and 2b with a synthetic resin. The present invention relates to a method for manufacturing a laminated pipe such as a fishing rod according to any one of claims 2 to 4, wherein the reinforcing fiber bundle 2 is used.

In the present invention, the range in which the reinforcing fiber bundles 2 are arranged is set to 5 degrees to 40 degrees of the circumference of the laminated tube 5 in order to keep the amplitude direction constant if it is smaller than 5 degrees. If the rigidity is insufficient, and if it is larger than 40 degrees, the width of the increase in the rigidity becomes too large to make it difficult to determine the amplitude direction in a fixed manner. This is because cracks are likely to occur in the pipes near both ends and the bending moment of fracture increases.

[0011]

Next, an embodiment of the present invention will be described with reference to the drawings. Embodiment 1 This laminated tube is used for a fishing rod or the like, and is shown in FIGS.
As shown in FIG. 1, a main body is formed by winding a prepreg sheet 3 for forming a laminated tube in which a reinforcing fiber is impregnated with a synthetic resin around a cored bar 1.

First, a method for manufacturing a laminated pipe according to the present invention will be described with reference to FIG. At least the width corresponding to the angle α of 5 to 40 degrees of the circumference of the core 1 and the entire length in the axial direction is provided on the outer periphery of the core 1 coated with the release agent and the adhesive. The reinforcing fiber bundles 2 aligned in one direction are arranged. It is desirable that the direction of extension of the reinforcing fiber bundle 2 be as long as possible along the axial direction of the core bar 1. As the reinforcing fiber bundle 2, a reinforcing fiber used for a prepreg sheet 3 for forming a laminated tube described later can be used. As the reinforcing fiber bundle 2, as described above, it is possible to use various ones such as ones aligned in one direction, crossed ones, prepreg sheets impregnated with a synthetic resin, and the like. .

Next, the core bar 1 and the reinforcing fiber bundle 2
A prepreg sheet 3 for forming a laminated pipe is wound around the outer periphery of the prepreg.
The laminated rod pipe forming prepreg sheet 3 is formed by impregnating a reinforcing fiber with a synthetic resin. Examples of the reinforcing fibers include glass fibers, carbon fibers, ceramic fibers, boron fibers, metal fibers such as zirconia, titanium, stainless steel, and beryllium, organic fibers such as aromatic polyamides and polyesters, and natural fibers such as cotton, cannabis, jute, and sisal. A fiber obtained by arranging fibers in one direction in a single or in combination with each other can be used. Further, another sheet can be placed on the aligned sheet so that the alignment direction intersects with the aligned sheet, and fibers can be woven and used.
It can also be used by braiding it in a tubular shape around the outer periphery. As the synthetic resin, a predetermined amount of a thermosetting resin such as unsaturated polyester, epoxy, vinyl ester, polyimide, phenol, or polyurethane can be used as a binder for a sheet of reinforcing fibers.

Thereafter, pressure and sintering are carried out by a conventional method. That is, a winding tape 4 made of polyethylene, nylon, or the like is spirally wound around the outer periphery of the prepreg sheet 3 for forming a laminated tube wound around the cored bar 1 by applying a predetermined tension. Alternatively, a heat-shrinkable tube may be coated instead of the winding tape 4, or the heat-shrinkable tube may be clamped with a mold or the like. After the winding tape 4 is mounted, the tape is heated and fired in a firing furnace. In the initial stage of heating, the thermosetting resin contained in the laminated tube forming prepreg sheet 3 melts and softens and penetrates into the reinforcing fiber bundle 2 on the outer periphery of the cored bar 1, and is rolled up when the prepreg sheet 3 is wound. Air, gas generated by heating, excess resin and the like are discharged from between the tapes 4. And when further heated, the thermosetting resin hardens,
The reinforcing fiber bundle 2 is positioned together with the reinforcing fibers in the prepreg sheet 3 for forming a laminated tube, and a laminated tube 5 made of resin reinforced with fibers is formed. After this pressurization and firing,
The laminated pipe 5 is obtained by removing the winding tape 4 and extracting the cored bar 1. Thereafter, the surface of the laminated tube 5 is polished,
Finished by painting.

As described above, the inner circumference of the laminated tube 5 has a width corresponding to the angle α of 5 to 40 degrees of the circumference of the laminated tube 5 within a range extending over the entire length in the axial direction. , A reinforcing fiber bundle 2 aligned in at least one direction is disposed.

The reinforcing fiber bundle 2 may be one obtained by simply aligning reinforcing fibers in one direction, but is formed by combining reinforcing fibers aligned in one direction with other reinforcing fibers. It may be something. For example, as shown in FIG. 3 (A), the reinforcing fibers 2a... Which are aligned and bundled in one direction and another reinforcing fiber 2b may be spirally wound so as to intersect. 3B, one reinforcing fiber 2a is aligned in one direction and another reinforcing fiber 2b
... may be woven. FIG.
Reinforcing fibers 2a which are aligned in one direction as shown in FIG.
May be constituted by a prepreg sheet impregnated with a synthetic resin 2c, and as shown in FIG. 3 (D), the reinforcing fibers 2a... A prepreg sheet impregnated with a synthetic resin in other reinforcing fibers 2b... Aligned in one direction is placed on the prepreg sheet so that the fiber directions intersect. Good. The reinforcing fiber bundle 2 may be formed by twisting or knitting the reinforcing fiber.

Due to the presence of the reinforcing fiber bundle 2, the laminated pipe 5
The rigidity in the circumferential direction is increased, the amplitude direction becomes constant, and excessive dispersion and attenuation of the vibration of the laminated tube 5 due to fish signals is prevented. FIG. 4 shows how the amplitude direction becomes constant. FIG. 4 shows that the reinforcing fiber bundle 2 is directed sideways (FIG. 4 (A)) and downward (FIG. 4 (B)) at the base end of the laminated tube 5.
It is fixed so as to be obliquely upward (FIG. 4 (C)), and vibration is applied to the tip in the direction of arrow Y, and the vibration direction Z after a predetermined time has elapsed
The result of observing is shown. According to the test of FIG. 4 (A), when the radial direction Z including the reinforcing fiber bundle 2 is taken horizontally and vibration is applied in a direction Y perpendicular thereto, the vibration direction gradually changes to the radial direction Z having high rigidity. Finally, it is clarified that vibration occurs only in the radial direction Z. According to the test of FIG. 6B, the radial direction Z including the reinforcing fiber bundle 2 is taken in the vertical direction and the vibration is generated in the same direction Y. When added, no change was observed in the vibration direction. According to the test shown in FIG. 9C, when the radial direction Z including the reinforcing fiber bundle 2 was taken up the stone shoulder and the vibration was given in the horizontal direction Y, It was clarified that the direction was sequentially changed to the radial direction Z having high rigidity, and finally the vibration was stable only in the direction Z. That is, the laminated tube 5 stably vibrates in the radial direction Z passing through the reinforcing fiber bundle 2, and transmits the fish signal to the angler's hand.

Comparative Example Next, the vibration transmission characteristics of the laminated tube 5 will be compared with a conventional laminated tube. A laminated tube 5 provided with the reinforcing fiber bundle 2 and a conventional laminated tube 6 having no such reinforcing fiber bundle 2 were prepared, and a vibration experiment was performed using an apparatus as shown in FIG. That is, a reel 7 and a guide 8 are attached to each of the laminated tubes 5 and 6 to form a fishing rod, a base end of the fishing rod is fixed to a pedestal 9, and a vibrator 11 is connected to a tip of a fishing line 10 hanging from the tip. Then, random vibration of 0 to 100 HZ (hertz) was given by the vibrator 11, and acceleration dBG (transmittance) for each frequency was measured by the acceleration sensor 12 provided in front of the fishing rod. The signal from the acceleration sensor 12 was amplified by the amplifier 13 and measured by the FFT analyzer (frequency analyzer) 14.

FIG. 6 shows the measurement result of the laminated tube 5 according to the present invention by the FFT analyzer 14. Table 1
In the measurement results of the FFT analyzer 14 shown in FIG. 6, the transmission rate and the transmission coefficient of vibration at the first to fifth natural vibration frequencies set at the time of designing the laminated tube 5 are shown.

The transfer coefficient x is obtained from the following equation. X = 20 logx (where X is transmissibility)

[0021]

[Table 1] On the other hand, six kinds of samples are prepared for the conventional laminated pipe 6 without the reinforcing fiber bundle 2, and the same measurement as above is performed, and the third natural vibration frequency of about 8HZ, which is considered to be most easily perceived by the angler, is provided. Table 2 was obtained when the transmission coefficient of vibration was determined. As is clear from Table 2, according to the laminated tube 5 according to the present invention, it is possible to transmit the vibration 6 to 18 times as much as the conventional product to the hand. Conversely, in the case of the conventional product, 80% or more of the vibration is dispersed or eliminated by circular motion or the like (see FIG. 12B), and is not transmitted to the hand.

[0022]

[Table 2] Here, the sample having the highest transfer coefficient among the materials of the above-mentioned conventional products is No. No. 1 for this sample No. FIG. 11 and Table 3 show an example of all the measured values of No. 1. As is clear from the comparison between FIG. 6 and Table 1 and FIGS. 7 and 3, according to the fishing rod made of the laminated tube 5 according to the present invention as compared with the conventional fishing rod, the vibration in the low frequency region which is the fish signal is obtained. Can be accurately transmitted to the user.

[0023]

[Table 3] In the above description of the embodiment, one laminated pipe 5 is described. However, the present invention is also applied to a fishing rod in which a plurality of laminated pipes 5 having different diameters are sequentially connected from the tip to the hand. Can be used. In this case, it is desirable to provide a joining mark at a predetermined position so that the reinforcing fiber bundles 2 are connected in a straight line between the laminated pipes 5. Thereby, the laminated pipe 5
..., the amplitude direction can be kept constant. Also, the reinforcing fiber bundles 2 of the laminated tubes 5.
.. A mounting mark for the fishing line guide 8 (see FIG. 5) may be provided on the top, and the fishing line guide 8 may be positioned on this mark. Thereby, the vibration from the fishing line guide 8 can be efficiently transmitted to the hand.

Embodiment 2 As shown in FIG. 8, this laminated tube 5 has a width corresponding to an angle α of 5 to 40 degrees of the circumference of the laminated tube 5 in the middle between the inner and outer peripheries. The reinforcing fiber bundle 2 is arranged in one direction within a range extending over the entire length in the axial direction.
Since the same reinforcing fiber bundle 2 as that in the first embodiment is used, the description thereof is omitted.

Next, a method of manufacturing this laminated tube will be described with reference to FIG.
First, a prepreg sheet 3a for forming a laminated tube in which a synthetic resin is impregnated with a reinforcing fiber is wound around the outer peripheral surface of the cored bar 1. A prepreg sheet 3b for forming a laminated tube having the reinforcing fiber bundle 2 adhered to the inner end is wound around the outer peripheral surface. Further, a winding tape 4 is wound around the outer peripheral surface in the same manner as in the first embodiment, and is heated and fired by a conventional method to obtain a laminated tube 5.

In the present embodiment, the prepreg sheets 3a and 3b for forming the laminated pipe are composed of two sheets, one for the inner layer and the other for the outer layer, and the laminated pipe body has a two-layer structure. In addition to winding three prepreg sheets sequentially to form a three-layer structure, increasing the number of prepreg sheets increases the
Various layer configurations such as layers may be used, in which case the reinforcing fiber bundle 2
May be arranged between any layers.

Further, in this embodiment, the reinforcing fiber bundle 2 is attached to the inner end of the laminated tube forming prepreg sheet 3b to be the outer layer and is disposed between the inner and outer layers. However, the laminated tube forming prepreg sheet 3a to be the inner layer. May be attached to the end of the prepreg sheet, or may be arranged on the wound outer peripheral surface of the laminated pipe forming prepreg sheet 3a to be the inner layer. May be arranged at an intermediate position between the two.

A comparative experiment similar to that of the first embodiment was performed on the laminated tube of the second embodiment, but similar results were obtained. Third Embodiment As shown in FIG. 10, this laminated tube 5 has an outer periphery extending over the entire length in the axial direction by a width corresponding to an angle α of 5 to 40 degrees of the circumference of the laminated tube 5. Within the extending range, the reinforcing fiber bundle 2 is arranged in one direction. Since the same reinforcing fiber bundle as that in the first embodiment is used, the description thereof is omitted.

Next, a method of manufacturing this laminated tube will be described with reference to FIG.
First, a prepreg sheet 3 for forming a laminated pipe, in which a synthetic resin is impregnated with a reinforcing fiber, is wound around the outer periphery of a metal core 1 on which a release agent and an adhesive are applied. The reinforcing fiber bundles 2 arranged in at least one direction are arranged on the outer circumference within a range of 5 to 40 degrees of the circumference and over the entire length in the axial direction. Further, a winding tape 4 is wound from the outer periphery, and is pressed and baked by a conventional method. After the completion of the pressurization and baking, the winding tape 4 is removed, and the cored bar 1 is removed to obtain a laminated tube. Thereafter, the surface is polished and painted to obtain a finished product.

Although the reinforcing fiber bundle 2 is arranged on the wound outer peripheral surface of the prepreg sheet 3 for forming a laminated tube, it may be attached to the end of the prepreg sheet 3 for forming a tube.

The same comparative experiment as in the first embodiment was performed on the laminated tube of the third embodiment, but similar results were obtained. In each of Embodiments 1, 2, and 3, the case where the present invention is applied to a fishing rod has been described as an example, but the present invention can be applied to other uses such as a golf shaft. When this laminated tube is used for a golf shaft, the rebound and vibration directions of the golf shaft during play can be regulated in a fixed direction by the reinforcing fiber bundle, and the direction in which the ball is hit can be more accurately determined. Can be obtained.

[0032]

According to the first aspect of the present invention, a reinforcing fiber bundle is provided within an angle range of 5 to 40 degrees around the circumference of the laminated pipe to increase its rigidity, and the amplitude is increased in the radial direction with the increased rigidity. Direction can be determined. Therefore, it is possible to prevent the circular motion of the laminated pipe at the time of transmitting the vibration and to prevent the vibration caused by the fish or the like from being transmitted to the angler's hand without dispersing and extinguishing, without affecting the natural frequency of the laminated pipe itself. The angler can accurately detect the movement of the fish and the like. In addition, since the amplitude direction is also limited, adjustment and the like by post-processing are simplified.

According to the second and third aspects of the present invention, in addition to the conventional process of winding a prepreg sheet around a cored bar and pressurizing and firing it, it is sufficient to locally arrange a reinforcing fiber bundle, so that lamination is possible. The tube can be easily manufactured without greatly changing the conventional manufacturing process.

According to the fourth aspect of the present invention, since the reinforcing fibers of the reinforcing fiber bundle are arranged so as to intersect each other, the amplitude direction can be more appropriately regulated.
According to the fifth aspect of the present invention, since the reinforcing fiber bundle is made of the prepreg sheet, the reinforcing fiber bundle can be reliably positioned and arranged with respect to the core metal and the pipe forming prepreg sheet. Therefore, it is possible to prevent the displacement of the arrangement of the reinforcing fiber bundles, and to determine the amplitude direction more appropriately.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a first embodiment of a laminated tube according to the present invention.

FIG. 2 is an explanatory diagram of a method for manufacturing a laminated tube according to the first embodiment.

FIG. 3 is a perspective view showing various forms of a reinforcing fiber bundle.

FIG. 4 is an explanatory diagram showing a relationship between a direction Y in which vibration is applied and a vibration direction Z after a predetermined time has elapsed.

FIG. 5 is an explanatory view of a vibration experiment device.

FIG. 6 is a graph showing a vibration test result of the laminated tube according to the present invention.

FIG. 7 is a graph showing the results of a vibration test of a conventional laminated tube.

FIG. 8 is a cross-sectional view of a second embodiment of the laminated tube according to the present invention.

FIG. 9 is an explanatory diagram of a method of manufacturing a laminated pipe according to a second embodiment.

FIG. 10 is a cross-sectional view of a third embodiment of the laminated tube according to the present invention.

FIG. 11 is an explanatory diagram of a method for manufacturing a laminated pipe according to a third embodiment.

12A is an explanatory diagram showing a variation in rigidity of a conventional laminated tube, and FIG. 12B is an explanatory diagram showing a state in which the tip of the laminated tube moves in a circular manner.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Core metal 2 ... Reinforcing fiber bundle 2a, 2b ... Reinforcing fiber 2c ... Prepreg sheet 3 ... Prepreg sheet for forming a laminated tube 5 ... Laminated tube

Claims (5)

[Claims] In a laminated pipe such as a fishing rod formed by winding a prepreg sheet for forming a laminated pipe in which a reinforcing fiber is impregnated with a synthetic resin around a cored bar, an intermediate circumference, an outer circumference or an intermediate between the inner and outer circumferences of the laminated pipe. A reinforcing fiber bundle aligned in at least one direction within a range corresponding to an angle of 5 to 40 degrees around the circumference of the laminated tube and extending over the entire length in the axial direction. A laminated pipe, such as a fishing rod, wherein the rigidity of only a part in the circumferential direction is increased. 2. An outer periphery of a core metal coated with a release agent and an adhesive, within a range extending over the entire length in the axial direction at a width corresponding to an angle of 5 to 40 degrees of the circumference of the core metal. A reinforcing fiber bundle arranged in at least one direction is arranged, and a prepreg sheet for forming a laminated tube in which a reinforcing resin is impregnated with a synthetic resin is wound around the outer periphery of the core metal and the reinforcing fiber bundle.
A method for producing a laminated pipe such as a fishing rod, which is fired. 3. A prepreg sheet for forming a laminated tube in which a reinforcing fiber is impregnated with a synthetic resin is wound around an outer periphery of a core metal to which a release agent and an adhesive are applied, and an intermediate portion between the outer periphery or the inner and outer periphery of the wound layer. A reinforcing fiber bundle arranged in at least one direction is arranged within a range corresponding to an angle of 5 to 40 degrees of the circumference of the layer and extending over the entire length in the axial direction. A method for producing a laminated pipe such as a fishing rod, which comprises pressurizing and firing. 4. The reinforcing fiber bundle according to claim 2, wherein a reinforcing fiber bundle obtained by combining a reinforcing fiber aligned in one direction with another reinforcing fiber is used. A method for manufacturing a laminated pipe such as a fishing rod. 5. The method for producing a laminated pipe such as a fishing rod according to claim 2, wherein a reinforcing fiber bundle made of a prepreg sheet in which a reinforcing fiber is impregnated with a synthetic resin is used.