JP5832223B2 - fishing rod - Google Patents

Description

  The present invention relates to a fishing rod for a fishing rod that is formed into a cylindrical shape by cutting a prepreg formed by impregnating a reinforcing fiber with a synthetic resin (hereinafter referred to as a prepreg) into a substantially trapezoidal shape and winding and laminating it as a main pattern on a core The present invention relates to a tubular body used for a body and a golf club.

When a fishing rod rod body is described as a tubular body, when a main pattern having a width corresponding to a plurality of plies is wound around a metal core, as shown in FIG. It wraps around the rest of the main pattern so that it overlaps the winding start side wrapped around the core.
In that case, due to the presence of the winding start side, a step is formed in the portion, and when the layers are wound in layers, the step portion (referred to as spine as a technical term) remains without being resolved (Patent Document 1). reference).

Japanese Patent Laying-Open No. 2009-268425 (Patent Number [0024], FIG. 5)

As shown in FIG. 5A of Patent Document 1, the overlapping portion formed by the above-described stepped portion is formed in a straight line (the same phase position in the circumferential direction) with the winding start side parallel to the saddle axis. It was.
Then, the rigidity changes greatly at the overlap part, and the part that changes the rigidity is formed linearly along the rod axis. It was happening that the rigidity differs depending on the type.
For example, when fishing is performed with the overlapping portion being up and down, and when fishing is performed with the overlapping portion being left and right, the curvature of the rod is different, and the posture of the rod is not constant. In addition, when throwing a device by throwing a fishing rod, even if the device throws the device forward, the frame may bend in the lateral direction and throw the device forward. It was.
Even when catching a fish, the rod suddenly sways laterally, making it difficult to catch the fish.
In addition, there is a problem that a swing occurs when swinging out a golf club or the like.

  The purpose of the present invention is to eliminate the above-mentioned problems by devising the arrangement of the overlapping portions, control when swinging out a fishing rod, golf club, etc., and suppressing swinging when lifting and swinging up, making it easy to manufacture Thus, the finished function is sufficiently exhibited, and a tubular body that can be efficiently manufactured is provided.

〔Constitution〕
The characteristic configuration of the invention according to claim 1 is a tubular body including an inner layer and an outer layer,
The outer layer is made of a main pattern having an axial length sufficient to form a tubular body with a prepreg in which reinforcing fibers are aligned, and the winding start side of the main pattern has a spiral shape along the inner peripheral surface. Layer,
The inner layer is made of a first auxiliary pattern having an axial length sufficient to form a tubular body with a prepreg in which reinforcing fibers are aligned, or a length corresponding to a part of the main pattern. The pattern winding start side is a layer exhibiting a linear shape along the axis of the tubular body,
The main pattern and the first auxiliary pattern are formed in a cylindrical shape by being overlapped and wound in a state where the winding start side of the main pattern is inclined with respect to the winding start side of the first auxiliary pattern. The effects are as follows.

[Action]
The winding start side was formed in a spiral shape. When a cross section perpendicular to the axis of the tubular body is viewed, as shown in FIG. 4, an overlapping portion is formed by the step portion of the layer having the axial reinforcing fiber.
However, overlapping portions at a plurality of locations from the front side to the original side in the tubular body are formed in a state of being distributed in the circumferential direction as shown in FIGS.
Therefore, since the overlapping portions are not formed at the same phase position in the circumferential direction over the entire length of the tubular body but are dispersed, the uneven thickness state is eliminated as the tubular body, and the change in rigidity at the circumferential position is suppressed. It became.
However, here, a layer of the first auxiliary pattern is provided in a part of the inner layer. With this first auxiliary pattern, when the winding start side of the main pattern located outside thereof is arranged in a spiral shape with respect to the axis of the tubular body, the main pattern can be easily wound, and the winding start side of the main pattern Can be accurately arranged in the desired spiral shape.
In addition, on the outer side of the inner layer, on the large diameter side, a layer in which the main pattern is wound is formed as described above, and in the layer in which the main pattern is wound, the winding start side has a spiral shape. Since a configuration that suppresses the overlapping portion is adopted, the first auxiliary pattern is arranged on the inner side as compared with the conventional structure in which the overlapping portion is formed only in a state parallel to the axis. However, it is possible to eliminate the uneven thickness state of the entire tubular body.

〔effect〕
By simply introducing the first auxiliary pattern, the main pattern can be easily wrapped around the core metal by simply devising the winding start side spirally around the core metal. The tubular body which can arrange | position the winding start side of a pattern correctly spirally was able to be provided.

Furthermore, the following operational effects are achieved.
The inner layer formed by the first auxiliary pattern has an overlapping portion formed at one place in the circumferential direction from the winding start side parallel to the axis of the tubular body.
However, since the winding start side by the first auxiliary pattern is formed in a state parallel to the axis and the axial length of the tubular body, compared to the main pattern that needs to be wound in a state inclined to the axis of the core bar, The winding start side by one auxiliary pattern can be wound in a state along the axis of the core bar, and the winding can be easily performed.
Therefore, when the main pattern is continuously wound after the first auxiliary pattern is wound, the winding start side of the main pattern is hung from the front side to the original side so as to form a spiral shape with respect to the axis of the tubular body. Since it is easy to arrange accurately, the effect of suppressing the uneven thickness of the overlapping portion can be further enhanced .

〔Constitution〕
The characteristic configuration of the invention according to claim 2 resides in that the first auxiliary pattern is formed by a main pattern having a thickness smaller than that of the main pattern, and the operation and effect thereof are as follows.

[Function and effect]
Since the first auxiliary pattern is thinner than the prepreg of the main pattern, the effect of the step portion is not as great as the main pattern, and the effect on the uneven thickness of the entire tubular body can be suppressed.

〔Constitution〕
A characteristic configuration of the invention according to claim 3 is a layer in which the first prepreg tape positioned inside the first auxiliary pattern is wound, or a layer in which the second prepreg tape disposed outside the main pattern is wound. Of these, at least one of them is arranged , and the function and effect thereof are as follows.

[Function and effect]
That is, by winding the first prepreg tape before winding the first auxiliary pattern, there is little slippage when winding the first auxiliary pattern and it is easy to wind.
In addition, by winding the second prepreg tape after winding the main pattern, the polymer can be tightened, and the winding state of the polymer can be made firm, and the first prepreg tape and the second prepreg tape can be If there is a wound layer, the main pattern and the first auxiliary pattern are sandwiched and wound, so that their melt-bonded state is good and rigidity is enhanced.

〔Constitution〕
The characterizing feature of the invention according to claim 4, before Symbol main pattern has a reinforcing fiber having uniform pulling, located a MakiHajimehen in that are parallel to cut to the reinforcing fibers, the operational effects It is as follows.

[Function and effect]
The main pattern is cut in parallel to the reinforcing fiber with the winding start side arranged approximately in the axial direction. It will be maintained to the extent that there is no.

〔Constitution〕
The characteristic configuration of the invention according to claim 5 is that the main pattern has reinforced fibers that are aligned, and the winding start side is cut in a state of being inclined with respect to the reinforced fibers. Is as follows.

[Function and effect]
When the winding start side is placed in a state inclined with respect to the axial direction of the core bar and wound, the reinforcing fibers are arranged in a state along the axial direction of the tubular body, and the bending strength and the axial direction fibers are increased. The rigidity can be enhanced.

〔Constitution〕
The characteristic configuration of the invention according to claim 6 is that the main pattern is cut into a plurality of layers, and the function and effect thereof are as follows.

[Function and effect]
Since the winding start side is formed in a spiral shape, the portion overlapping the winding start side in the outer layer is not biased to the same phase in the circumferential direction, and the rigidity bias is eliminated even in a plurality of layers. Can do.
In addition, in a tubular body with a large number of layers, the main pattern may be cut into a plurality of parts, so that rigidity and strength can be improved.

〔Constitution〕
The characteristic configuration of the invention according to claim 7 is that the winding end side of the layer located on the outer side among the plurality of layers having the reinforced fibers further aligned is hung from the front side to the original side with respect to the axis of the tubular body. The effect is as follows.

[Function and effect]
A stepped portion is also formed at the winding end side in the same manner as the winding start side. For this reason, since the rigidity changes at the step portion, the winding end side is also configured to have a spiral shape. This makes it possible to obtain a tubular body with less rigidity bias.

〔Constitution〕
The characteristic configuration of the invention according to claim 8 is configured such that the winding start side and the winding end side of the main pattern intersect each other at a plurality of locations in a side view orthogonal to the axis of the tubular body. It is in.

〔Constitution〕
Characterizing feature of the invention according to claim 9 is a method for producing a tubular body which is created a main pattern of the prepreg aligned pull the reinforcing fibers are laminated wound into a cylindrical shape to the core metal,
The main pattern in which the winding start side is arranged parallel to the aligned reinforcing fibers, and a prepreg made of a prepreg having a sufficient axial length to form a tubular body with a thickness smaller than the thickness of the main pattern. One auxiliary pattern is overlaid, and the main pattern and the first auxiliary pattern overlapped with each other so that the winding start side of the first auxiliary pattern is along the axis of the core metal, The winding start side of the pattern is in an inclined state away from the original side with respect to the axis of the core bar, and the first auxiliary pattern is preceded and wound around the core bar in order to form a tubular body, The effects are as follows.

[Function and effect]
As a method of winding the winding start side spirally, it is achieved by winding the winding start side around the core bar so that the winding start side is inclined with respect to the axis of the core bar. While following the conventional manufacturing method in which a main pattern is wound around gold, new technology is improved (see FIG. 3A).
Moreover, as the main pattern cutting shape, since the winding start side is maintained parallel to the reinforcing fibers arranged in the substantially axial direction, the shape of the main pattern is the same as that of the conventional pattern. The tone of the product is maintained to the extent that there is no actual harm.
In addition to this, a manufacturing method in which the first auxiliary pattern superimposed on the main pattern is wound around the core in advance is employed. Accordingly, the winding start side of the first auxiliary pattern is not inclined with respect to the core metal but can be wound in a state along the axis of the core metal, so that the winding start side is inclined with respect to the axis of the core metal. The winding start side can be wound more easily than in the case of winding in the state, and even if the winding start side of the main pattern is inclined with respect to the axis of the core bar, the winding start side can be accurately arranged. .
Furthermore, since the first auxiliary pattern employs a prepreg that is thinner than the main pattern, the winding start side of the first auxiliary pattern is arranged along the axis of the core bar, and a step portion is formed. However, the influence can be reduced compared with the case where the winding start side of the main pattern is arranged along the axis of the core bar and the stepped portion is formed.

〔Constitution〕
Characterizing feature of the invention according to claim 10 is the method for producing a tubular body which is created a main pattern of the prepreg aligned pull the reinforcing fibers are laminated wound into a cylindrical shape to the core metal,
The main pattern cut in a state in which the winding start side is inclined with respect to the aligned reinforcing fibers, and a prepreg made of a prepreg having a sufficient axial length to form a tubular body with a thickness smaller than the thickness of the main pattern. One auxiliary pattern is overlaid, and the main pattern and the first auxiliary pattern overlapped with each other so that the winding start side of the first auxiliary pattern is along the axis of the core metal, The winding start side of the pattern is in an inclined state away from the original side with respect to the axis of the core bar, and the first auxiliary pattern is preceded and wound around the core bar in order to form a tubular body, The effects are as follows.

[Function and effect]
As a method of winding the winding start side in a spiral shape, a main pattern was used in which the winding start side of the main pattern was cut from the beginning with respect to the reinforcing fibers arranged along the axis of the tubular body. Thus, the same effect as that set forth in claim 9 can be obtained.

〔Constitution〕
Characterizing feature of the invention according to claim 11 is a method for producing a tubular body which is created a main pattern of the prepreg aligned pull the reinforcing fibers are laminated wound into a cylindrical shape to the core metal,
The main pattern in which the winding start sides are arranged parallel to the aligned reinforcing fibers and the second auxiliary pattern made of prepreg having an axial length shorter than the axial length of the tubular body are overlapped, and the overlapping The main pattern and the second auxiliary pattern are arranged such that the winding start side of the second auxiliary pattern is along the axis of the cored bar, and the winding start side of the main pattern is the axis of the cored bar. The second auxiliary pattern is preceded and wound around the mandrel in order to form a tubular body so as to be inclined away from the original side, and the operational effects are as follows.

[Function and effect]
Here, in place of the first auxiliary pattern employed in the ninth aspect, the second auxiliary pattern having a short axial length is employed. By adopting the second auxiliary pattern, as in the case where the first auxiliary pattern is introduced, the winding start side of the second auxiliary pattern is not inclined with respect to the core metal but in a state along the axis of the core metal. Since the second auxiliary pattern can be wound, it can be wound more easily than when the winding start side is inclined with respect to the axis of the core bar, and the winding start side of the main pattern is also made of the core bar. Even if it is inclined with respect to the axis, the winding start side can be accurately arranged.
In addition, since the second auxiliary pattern has a shorter axial length than the first auxiliary pattern, the influence of the presence of the second auxiliary pattern can be limited to a part of the tubular body. Furthermore, when the second auxiliary pattern is provided only in the vicinity of the original side end, the second auxiliary pattern is located in a portion where cutting is abandoned when adjusting the dimensions of the tubular body. It is considered that there are no two auxiliary patterns, and the influence of the second auxiliary pattern can be ignored.
Even if the second auxiliary pattern is left, it does not exist over the entire length of the tubular body, so that there is an effect of reducing spine.

〔Constitution〕
Characteristic configuration of the invention according to claim 12 is a method for producing a tubular body which is created a main pattern of the prepreg aligned pull the reinforcing fibers are laminated wound into a cylindrical shape to the core metal,
The main pattern cut in a state in which the winding start side is inclined with respect to the aligned reinforcing fibers and the second auxiliary pattern made of prepreg having an axial length shorter than the axial length of the tubular body are overlapped and overlapped. The combined main pattern and the second auxiliary pattern are arranged so that the winding start side of the second auxiliary pattern is along the axis of the core bar, and the winding start side of the main pattern is the core bar The second auxiliary pattern is preceded and wound around the mandrel in order to form a tubular body so as to be inclined toward the original side with respect to the axis, and the operation and effect are as follows.

[Function and effect]
Here, in place of the first auxiliary pattern employed in the tenth aspect, a second auxiliary pattern having a short axial length is employed. By adopting the second auxiliary pattern, as in the case where the first auxiliary pattern is introduced, the winding start side of the second auxiliary pattern is not inclined with respect to the core metal but in a state along the axis of the core metal. Since the second auxiliary pattern can be wound, it can be wound more easily than when the winding start side is inclined with respect to the axis of the core bar, and the winding start side of the main pattern is also made of the core bar. Even if it is inclined with respect to the axis, the winding start side can be accurately arranged.
In addition, since the second auxiliary pattern has a shorter axial length than the first auxiliary pattern, the influence of the presence of the second auxiliary pattern can be limited to a part of the tubular body. Furthermore, when the second auxiliary pattern is provided only in the vicinity of the original side end, the second auxiliary pattern is located in a portion where cutting is abandoned when adjusting the dimensions of the tubular body. It is considered that there are no two auxiliary patterns, and the influence of the second auxiliary pattern can be ignored.

〔Constitution〕
Characterizing feature of the invention according to claim 13 is a method for producing a tubular body which is created a main pattern of the prepreg aligned pull the reinforcing fibers are laminated wound into a cylindrical shape to the core metal,
A first prepreg made of a prepreg having a sufficient axial line length to form a tubular body with a thickness smaller than the thickness of the main pattern and the main pattern, wherein the winding start side is inclined with respect to the aligned reinforcing fibers. The auxiliary pattern is overlaid, and the third auxiliary pattern having a shape smaller than the first auxiliary pattern is positioned at a predetermined distance from the front end of the first auxiliary pattern and the original auxiliary end position of the first auxiliary pattern A fourth auxiliary pattern having a shape smaller than the first auxiliary pattern is overlaid so as to overlap the winding start side of the main pattern, and the superimposed main pattern, the first auxiliary pattern, the third auxiliary pattern, and the first 4 The polymer with the auxiliary pattern is formed such that the winding start side of the first auxiliary pattern is in a state along the axis of the core metal, and the winding of the main pattern The first auxiliary pattern is preceded and wound around the core bar in order to form a tubular body so that the side is inclined toward the original side with respect to the axis of the core bar. It is as follows.

[Function and effect]
Here, in addition to the main pattern and the first auxiliary pattern adopted in claim 6 and claim 10, a method of forming a tubular body by winding a superposition of a third auxiliary pattern and a fourth auxiliary pattern explain.
That is, the third auxiliary pattern having a shape smaller than the first auxiliary pattern is provided slightly apart from the front side end of the first auxiliary pattern to the original side end side, so that not only the front side portion of the tubular body but also the front side end. The strength of the part near the former side is improved. Moreover, the 4th auxiliary | assistant pattern is aiming at the intensity | strength improvement in the former side end to which a bigger load acts than the front side.
Moreover, since the third auxiliary pattern and the fourth auxiliary pattern are arranged so as to overlap the winding start side of the main pattern, the stress concentration at the overlapping portion (spine) at the winding start side in a state of being formed in the tubular body. Is to reinforce the rigidity of the portion.

〔Constitution〕
A characteristic configuration of the invention according to claim 14 is a method of manufacturing a tubular body according to claim 13,
Prior to winding the superposed polymer around a cored bar, the first prepreg tape having a narrow width is spirally wound over substantially the entire length of the polymer, and the polymer is The second prepreg tape having a narrow width is wound spirally over the entire length of the polymer to form a tubular body, and the effects thereof are as follows.

[Function and effect]
Here, in addition to winding the polymer of the main pattern and the first auxiliary pattern, the third auxiliary pattern, and the fourth auxiliary pattern employed in claim 13 around the metal core, the first prepreg tape and the second The effect of winding a prepreg tape to form a tubular body will be described.
That is, by winding the first prepreg tape before winding the polymer, slipping and the like are less likely to occur when the polymer is wound.
In addition, by winding the second prepreg tape after winding the polymer, the state where the polymer 7 body is tightly wound can be confirmed.

FIG. 1 is an overall side view showing a spatula. FIG. 2 is a configuration diagram showing the shape of the main pattern and the cored bar according to the first embodiment. FIG. 3A is a configuration diagram illustrating a state in which a part of the winding start side of the first auxiliary pattern is wound around the core metal, and FIG. 3B illustrates the main pattern after the first auxiliary pattern has been wound. FIG. 3C is a configuration diagram showing a state in which the main pattern has been wound around the core metal. 4 (a) is a cross-sectional view taken along the line II in FIG. 3 (c), FIG. 4 (b) is a cross-sectional view taken along the line II-II in FIG. 3 (c), and FIG. FIG. 4D is a sectional view taken along the line III-III in FIG. 3C, and FIG. 4D is a sectional view taken along the line IV-IV in FIG. FIG. 5 is a perspective view showing a state in which the tip side of the main pattern is wound around the core metal by one ply. FIG. 6 is a perspective view showing that the winding start side of the main pattern has a spiral shape. FIG. 7 is a configuration diagram showing a state before the main pattern cut with the winding start side inclined with respect to the reinforcing fiber by an angle α is wound around the cored bar. FIG. 8 shows the second embodiment, and shows a state before a main pattern in which the winding start side is cut parallel to the reinforcing fiber and the second auxiliary pattern is superimposed on the core bar. FIG. FIG. 9 shows the fourth embodiment, and shows a state before winding the second auxiliary pattern on the main pattern cut by inclining the winding start side with respect to the reinforcing fiber and wound around the cored bar. It is a block diagram. FIG. 10 shows a fifth embodiment, FIG. 10 (a) is a configuration diagram showing a state before the fifth auxiliary pattern is wound around a cored bar, and FIG. 10 (b) shows a first prepreg tape thereon. The block diagram which shows the state to wind, (c) is winding the polymer of a 1st auxiliary | assistant pattern, a 3rd auxiliary | assistant pattern, and a 4th auxiliary | assistant pattern to the main pattern which inclined and cut the winding start side with respect to the reinforcing fiber. The block diagram which shows the state before rotating, (d) is a block diagram which shows the state before winding a 6th auxiliary pattern. FIG. 11 shows a manufacturing method subsequent to FIG. 10, FIG. 11 (e) is a configuration diagram showing a state of winding the second prepreg tape, and (f) is a state before winding the seventh auxiliary pattern. (G) is a block diagram which shows the state which finished winding the 7th auxiliary pattern. FIG. 12 is a configuration diagram in which the direction of reinforcing fibers arranged in the axial direction of the first auxiliary pattern in FIG. 2 is set in the circumferential direction.

[First Embodiment]
Here, embodiments relating to claims 1, 3, and 8 will be mainly described.
This will be described with reference to the spatula pot. As shown in FIG. 1, a hand rod 4 having an intermediate rod such as a tip rod 1, a second rod 2, and a third rod 3 having a Lilian 1 A for tying a fishing line, and a spindle-type grip portion 4 A is provided. Thus, a spatula bowl H is formed. Fishing rod rods such as a head rod 1, an intermediate rod, and a hand rod 4 are shown as an example of a tubular body.

Each of the ridges 1 to 4 is configured as follows. As shown in FIG. 2, a main pattern 5 made of prepreg is wound around a cored bar 6 which will be described later to form a cylindrical basket material, and finish processing or the like is applied to the collar material to constitute the collars 1 to 4. . You may aim at the reinforcement effect by the reinforcement pattern 7 in the heel side and the heel side of ridges 1-4.
The main pattern 5 is formed in a plate shape by impregnating the reinforcing fibers f aligned along the substantially axial direction of the ridge with a matrix resin.

  As the reinforcing fiber f constituting the prepreg, specifically, glass fiber, aramid fiber, alumina fiber or the like can be used in addition to the carbon fiber, and as the matrix resin, besides epoxy resin, phenol resin, polyester resin, etc. Thermosetting resins and thermoplastic resins such as PV (E) can be used. Further, the prepreg may be configured by impregnating a woven material with a resin.

Here, the intermediate rod will be described. As shown in FIG. 2, the main pattern 5 has a trapezoidal shape. The main pattern 5 includes a winding start side 5 </ b> A that is wound first around the core bar 6 and a winding end side 5 </ b> B that is wound last along the length of the core bar 6. A heel side 5C and a heel side 5D extending in the direction and perpendicular to the winding start side 5A are provided. The winding end side 5B is formed on the hypotenuse with an inclination angle of β relative to the winding start side 5A. Further, the winding start side 5A is cut in parallel with the reinforcing fibers f aligned substantially in the axial direction.
The main pattern 5 used here is cut so that the heel side 5C and the heel side 5D are orthogonal to the winding start side 5A, and the winding end side 5B is cut with respect to the winding start side 5A. This is a sheet similar to the conventional sheet formed on the hypotenuse with an inclination angle of angle β. The angle β is set so that the heel side 5D is longer by one ply than the heel side 5C. It may be 1 ply or more.

  The length L1 from the heel side 5C to the heel side 5D is approximately 0.7 m to 1.2 m, which is a length sufficient to create an intermediate heel. On the other hand, the length L2 of the heel side 5C is cut to a length that can be wound around a predetermined position of the core 6 three times. That is, it has a length of 3 plies. On the other hand, the length L3 of the heel side 5D is longer than the heel side 5C, and is cut to a length that is wound around the base portion of the metal core 6 four times or more. That is, it has a length of 4 plies or more. As described above, the base side 5D has a larger number of plies because the base side is closer to the hand side and bending stress and the like act more and become a connecting portion with the next large diameter side heel. It is.

Then, the core 5 in a state where the main pattern 5 cut in this way is inclined so that the winding start side 5A is inclined at an inclination angle α with respect to the axis X of the core 6 as shown in FIG. Wrap around. As shown in FIGS. 2 and 3, the intersection position e between the winding start side 5A and the base side 5D is an inclination of the winding start side 5A from the reference line Y parallel to the saddle axis (which is also the core axis) X. The separation length L4 corresponds to the length of one ply when wound around the cored bar 6.
From the above, as shown in FIG. 2, the inclination angle α between the winding start side 5A and the reference line Y is represented by tan α = L4 / L1. In the case of a spatula, α is a value between 0.8 ° and 1.3 °.
With the configuration as described above, the winding start side 5A of the intermediate rod that is wound around the metal core 6 and formed into a cylindrical shape is a spiral line along the inner peripheral surface of the intermediate rod as shown in FIGS. It has become. In the case of a ridge having a large outer diameter, the inclination angle α increases in accordance with the size of the diameter.

Next, the first auxiliary pattern 8 that is used so as to overlap the main pattern 5 will be described. As shown in FIG. 2, the first auxiliary pattern 8 is made of prepreg and is cut into a substantially rectangular shape. The winding start side 8A and the winding end side 8B along the axis are parallel lines along the axial direction, and the axial length L5 of the winding start side 8A and the winding end side 8B is slightly smaller than the axial length L1 of the main pattern 5. It is set to a long length, and its width L6 is set to a length slightly longer than one ply.
The thickness of the first auxiliary pattern 8 is thinner than that of the main pattern 5 and is set to about half the thickness. The arrangement direction of the reinforcing fibers in the prepreg used for the first auxiliary pattern 8 is aligned in the axial direction.

  To superimpose the first auxiliary pattern 8 on the main pattern 5, first, the main pattern 5 is inclined by the inclination angle α, and the winding start side 5 </ b> A is relative to the reference line Y parallel to the axis X of the cored bar 6. Set to tilt. That is, the intersection point e of the main pattern 5 is inclined in a direction away from the reference line Y by one ply.

  A substantially rectangular first auxiliary pattern 8 is superimposed on the inclined main pattern 5 so that the diagonal line of the first auxiliary pattern 8 substantially overlaps the winding start side 5A of the main pattern 5. Thus, one region overlaps the main pattern 5 across the diagonal line of the first auxiliary pattern 8.

Next, as shown in FIGS. 2 and 3, a cored bar 6 is prepared. The metal core 6 is a rod-like body formed by applying metal plating or the like to a heat-resistant and corrosion-resistant nickel / molybdenum alloy, surface-hardened steel (S45C), or the like. The outer diameter D is slightly longer than the length L1 corresponding to the tubular body from the tip to the base and has a substantially constant minimum taper rate until reaching the base end, and the base end has a large diameter. It is formed in the part.
The outer diameter D of the large diameter portion at the base end is formed to be substantially constant, and a spatula or the like employs a taper ratio of approximately 1.0 / 1000 to 3.0 / 1000 mm from the tip to the base end. .

The main pattern 5 and the first auxiliary pattern 8 are wound around the cored bar 6 to form an intermediate collar.
As shown in FIG. 3A, the first auxiliary pattern 8 is wound around the metal core 6 in advance. That is, the winding start side 8 </ b> A of the first auxiliary pattern 8 is arranged along the axis X around the core bar 6, and the first auxiliary pattern 8 and the main pattern 5 are wound around. Then, the winding start side 5A of the main pattern 5 is wound with the base side away from the core bar 6 with respect to the axis X of the core bar 6 and tilted by the tilt angle α.

  Then, as shown in FIG. 3B, the main pattern 5 is wound in a posture in which the winding start side 5A is inclined with respect to the cored bar 6, so that as shown in FIG. 3C and FIG. The winding start side 5A of the inner layer formed by the main pattern 5 is indicated by an oblique dotted line. This means that the winding start side 5A is wound in a spiral shape as shown in FIG.

  Considering the point where the winding start side 5A draws a spiral shape, as described above, the main pattern 5 is inclined by the inclination angle α, that is, the intersection of the winding start side 5A and the base side 5D. The position e is separated from the reference line Y parallel to the saddle axis (which is also the core axis) X by the inclination of the winding start side 5A, and the separation length L4 is one ply when winding the core 6 The point of being separated as much as the minute length has been described above. As shown in FIGS. 3 (c) and 4, this is shown in FIGS. 3 (c) and 4 (b) when the cross section of the tubular body is verified at four locations in the axial direction of the saddle axis X. 3 (c) and 4 (b) separated from the winding start point a of the II cross section shown in FIGS. 3 (c) and 4 (a) by 120 ° in the circumferential direction. The position of the winding start side 5A can be confirmed at the position at the winding start point b of the II-II cross section shown in FIG.

When the same procedure is followed to cut the section III-III shown in FIGS. 3C and 4C, the winding start point b of the II-II section of the inner layer shown in FIGS. 3C and 4B is obtained. The position of the winding start side 5A can be confirmed at the position at the winding start point c shown in FIG. 3C and FIG.
In the same procedure, as shown in FIGS. 3 (c) and 4 (d), when cut in the IV-IV cross section, the III-III cross section of the inner layer shown in FIGS. 3 (c) and 4 (c) is obtained. The position of the winding start side 5A can be confirmed at the position at the winding start point d shown in FIGS. 3C and 4D, which is 120 ° apart from the winding start point c in the circumferential direction. It is just returned to the same position as the original winding start point a, and it can be seen that only one ply is wound.

On the other hand, when considering the winding end side 5B in the outer layer, the winding end side 5B at the base end of the tubular body is formed so as to be inclined by one ply or more with respect to the winding start side 5A. Since the main pattern 5 is wound around the metal core 6 at the inclination angle α, the intersection position g between the winding end side 5B and the heel side 5D is separated from the reference line Y by two plies or more. Become.
Actually, in FIG. 3C, the intersection position g between the winding end side 5B and the heel side 5D is drawn so as to be approximately three plies apart from the reference line Y.

Therefore, in the state formed in the tubular body, the winding end side 5B in the outer layer has a spiral shape in which three inclined lines appear as shown in FIG. Since the main pattern 5 is wound at the inclination angle α, not only the inner layer of the collar side 5D but also the intermediate layer is exposed.
Thus, the winding end side 5B also has a spiral shape as in the case of the winding start side 5A, and thus functions to suppress the effect of the spine described above. Needless to say, the number of inclinations changes depending on the inclination angle β.

As described above, a verification test was performed by CAE on the difference in the inclination angle α of the winding start side 5A wound spirally.
As a premise of the test, the following conditions are used.
(1) Core bar diameter 5mm Core bar taper 1/1000
Test cage length 1000mm
(2) Test method The base end is fixed, a load of a predetermined weight Mg is applied to the free end of the tip, and the deflection of the free end of the tip is measured.
A mark is given to the reference position in the circumferential direction of the fishing rod, the state in which the mark faces upward is defined as 0 °, the position rotated by 45 ° from the 0 ° state in which the mark faces upward, and each 45 ° Measure the downward deflection of the heel tip at the rotated position.
(3) Specifications of test kite Test kit 1: Main pattern thickness: smm Number of windings: h ply (tip side) -j ply (base side)
Test rod 2: Main pattern thickness: smm Number of windings: h ply (tip side) -j ply (heel side)
(4) The test rod 1 has a conventional structure in which the winding start side 5A of the inner layer is parallel to the axis X of the core bar 6 and the separation length L4 is zero.
(5) The test rod 2 is of the present invention in which the winding start side 5A of the inner layer is inclined to the axis X of the cored bar 6 and the separation length L4 corresponds to one ply.

  Describe the test results described above.

From the above test results, in the test rod 1 in which the main pattern 5 is wound with the separation length L4 of the entire circumference of the core metal (for one ply), that is, the inclination angle α represented by tan α = L4 / L1. The difference between the maximum and minimum deflections at the positions of 0 °, 45 °, 90 ° and 135 ° has reached the range of 3.0%, whereas in the test rod 2, the maximum and minimum deflection amounts are The difference is suppressed to a range of 0.6%.
This shows that the spiral of the winding start side 5A has a high function of effectively eliminating the uneven thickness state.
Although not described as a test result, it is considered that the spine suppression effect is high for those having a large amount of resin.

[Second Embodiment]
Here, embodiments related to claims 1, 5, and 11 will be mainly described. As shown in FIG. 8, the main pattern 5 is the same as the first embodiment in which the prepreg in which the reinforcing fibers are aligned and arranged in the axial direction is cut into a substantially trapezoidal shape, and the winding start side 5A is cut in parallel to the reinforcing fibers. Use a configuration.
On the other hand, a second auxiliary pattern 9 different from the first auxiliary pattern 8 is used as the auxiliary pattern.

The second auxiliary pattern 9 has an axial length that is significantly shorter than that of the main pattern 5 and has a substantially trapezoidal shape. In the vicinity of the intersection of the winding start side 5A of the main pattern 5 and the heel side 5D. Can be mounted in layers.
Unlike the first auxiliary pattern 8, the thickness of the second auxiliary pattern 9 does not need to be set thinner than the main pattern 5, and may be thicker than the main pattern 5. That is, after the second auxiliary pattern 9 is wound around the casing, the second auxiliary pattern 9 is cut off together with a part of the base side when adjusting the length of the casing.

As described above, when the second auxiliary pattern 9 superimposed on the main pattern 5 is wound around the cored bar 6, the winding start side 9A of the second auxiliary pattern 9 is in a state along the axis X of the cored bar 6. When the second auxiliary pattern 9 is arranged and wound on the main pattern 5, the main pattern 5 is continuously wound. At that time, the winding start side 5A of the main pattern 5 is wound with the base side away from the core bar 6 with respect to the axis X of the core bar 6 and tilted by the tilt angle α.
Thereby, it can be said that it was described in paragraph number [0028], and the winding start side 5A of the main pattern 5 has a spiral shape.

[Third Embodiment]
Here, embodiments relating to claims 1, 6, and 10 will be mainly described. The intermediate pattern is created with the main pattern 5 having a different shape.
As shown in FIG. 7, the main pattern 5 has a substantially trapezoidal shape. The first winding side is the winding start side 5 </ b> A and the last winding side is the winding end side 5 </ b> B. Sides substantially orthogonal to the side 5A and the winding end side 5B are arranged on the heel side and the heel side, and are provided with a heel side 5C and a heel side 5D.

  The heel side 5C and the heel side 5D are cut into a posture orthogonal to the reference line Y when a line parallel to the axis X of the core bar 6 is considered as the reference line Y. On the other hand, as shown in FIG. 7, the winding start side 5A is not parallel to the reference line Y, but is cut so as to be inclined so as to be closer to the base side 5D. . That is, the winding start side 5A is cut with an angle α with respect to the reinforcing fiber f arranged along the substantially axial direction, and the winding start side 5A and the tip side 5C are sandwiched between them. The sandwiching angle γ is configured to be a value smaller than 90 degrees. As described above, as the shape of the main pattern 5, it is necessary to discard the portion of the angle α. However, since the alignment direction of the reinforcing fibers f is set in the axial direction, a decrease in strength can be suppressed. .

  The length L1 from the heel side 5C to the heel side 5D may be considered to be approximately 0.7 m to 1.2 m as a length sufficient to create the intermediate heel. On the other hand, the length L2 of the heel side 5C is cut to a length that can be wound around a predetermined position of the core 6 three times. That is, it has a length of 3 plies. On the other hand, the length L3 of the heel side 5D is longer than the heel side 5C, and is cut to a length that is wound around the original side portion of the core 6 at least four times. That is, it has a length of 4 plies or more. In this way, the heel side 5D has a larger number of plies because the original side is closer to the hand side and bending stress etc. acts more and becomes the connection part with the next large diameter side heel. is there.

As shown in FIG. 7, the intersection position e between the winding start side 5A and the heel side 5D is separated from the reference line Y by the inclination of the winding start side 5A, and the separation length L4 is This corresponds to the length of one ply when wound around the cored bar 6.
From the above, as shown in FIG. 7, the inclination angle α between the winding start side 5A and the reference line Y is represented by tan α = L4 / L1. In the case of a spatula, α is a value between 0.8 ° and 1.3 °.
With the configuration as described above, the winding start side 5A of the intermediate rod wound around the metal core 6 and formed into a cylindrical shape becomes a spiral line along the inner peripheral surface of the tubular body as shown in FIG. Yes. In the case of a ridge having a large outer diameter, the inclination angle α increases in accordance with the size of the diameter.

On the other hand, the winding end side 5B is set to be inclined at an inclination angle β with respect to the reference line Y in the same manner as the winding start side 5A, and when the winding end side 5B is also wound around the metal core 6, it is spiral. Will be presented.
Note that the inclination angle α of the winding start side 5A and the inclination angle β of the winding end side 5B do not necessarily coincide with each other. When the two spirals are formed so as to be positioned 180 ° opposite to each other in the circumferential direction when viewed in cross section at each flange portion located at the end, a change in rigidity can be further suppressed.

As shown in FIG. 7, the first auxiliary pattern 8 described in the paragraph numbers [0042] to [0044] is superimposed on the main pattern 5 and used. The first auxiliary pattern 8 is the same as described above, and is a substantially rectangular prepreg, and the reinforcing fibers are aligned in the axial direction and overlapped so that the winding start side 5A of the main pattern 5 comes to the diagonal position.
With such a configuration, the winding start side 8A of the main pattern 5 is inclined with respect to the axis X by winding the winding start side 8A of the first auxiliary pattern 8 along the axis X of the cored bar 6. Wrapped.

[Fourth Embodiment]
Here, a mode in which the second auxiliary pattern 9 shown in the second embodiment is used in an overlapping manner with the main pattern 5 shown in the third embodiment, which mainly describes the embodiments related to claims 1, 6, and 12, will be described. To do. As shown in FIG. 9, the winding start side 5A of the main pattern 5 is cut in a state of being inclined at an inclination angle α with respect to the reinforcing fibers f aligned in the axial direction, and the main pattern 5 has a substantially trapezoidal shape. Cut to a close shape.
On the other hand, as described in the second embodiment, the second auxiliary pattern 9 is formed with an axial length that is considerably shorter than the axial length L1 of the main pattern 5, and the winding start side 5A of the main pattern 5 is formed. And the vicinity of the intersection of the heel side 5D.

  The winding start side 5A of the main pattern 5 is inclined with respect to the axis X by winding the winding start side 9A of the second auxiliary pattern 9 having such a configuration along the axis X of the cored bar 6. Wound in state.

[Fifth Embodiment]
Here, embodiments corresponding to claims 1, 6, 13, and 14 will be mainly described. This will be described with reference to FIGS.
(1) As shown in FIG. 10A, the fifth auxiliary pattern 13 is set on the tip side and wound around the core bar 6. The fifth auxiliary pattern 13 has a substantially trapezoidal shape, and its axial length is shorter than that of the main pattern 5. The thickness does not need to be thinner than the main pattern 5 and may be thick.
The fifth auxiliary pattern 13 is made of a nonwoven fabric. However, as shown to Fig.10 (a), it may be comprised from a prepreg. In this case, the direction of the reinforcing fiber f is described as being arranged in the circumferential direction, but may be arranged in the axial direction. Furthermore, it may be inclined or may intersect two directions.

  (2) As shown in FIG. 10 (b), the first prepreg tape 12 </ b> A having a narrow width is spirally wound over the entire length of the cored bar 6 from above the fifth auxiliary pattern 13.

(3) As shown in FIG. 10C, the polymer A of the main pattern 5, the first auxiliary pattern 8, the third auxiliary pattern 10, and the fourth auxiliary pattern 11 is wound from above the first prepreg tape 12A. Turn.
The polymer A forms a tubular body with a main pattern 5 cut to a state in which the winding start side 5A is inclined with respect to the reinforcing fiber f disposed substantially in the axial direction, and a thickness smaller than the thickness of the main pattern 5. A first auxiliary pattern 8 made of prepreg having a sufficient axial length is overlapped, and a third auxiliary having a triangular shape smaller than the first auxiliary pattern 8 is located at a predetermined distance from the front end of the first auxiliary pattern 8. A pattern 10 and a trapezoidal fourth auxiliary pattern 11 smaller than the first auxiliary pattern 8 are overlapped on the original side end position of the first auxiliary pattern 8 so as to overlap the winding start side 5A of the main pattern 5, and the overlapping. The main pattern 5, the first auxiliary pattern 8, the third auxiliary pattern 10, and the fourth auxiliary pattern 11 are combined.

In this polymer A, the third and fourth auxiliary patterns 10 and 11 are inside, and the winding start side 8A of the first auxiliary pattern 8 is in a state along the axis X of the core bar 6. In addition, the first auxiliary pattern 8 is preceded and wound around the core bar 6 sequentially so that the winding start side 5A of the main pattern 5 is inclined with respect to the axis X of the core bar 6 to form a tubular body. Form.
In this case, the winding start side 5A is cut so that the intersection position of the winding start side 5A and the base side 5D in the main pattern 5 is separated from the reference line Y by one ply.
However, it may be smaller or larger than one ply. The third auxiliary pattern 10 and the fourth auxiliary pattern 11 may be omitted. Alternatively, only the fourth auxiliary pattern 11 may be provided.

(4) Next, as shown in FIG. 10D, the sixth auxiliary pattern 14 is wound. The sixth auxiliary pattern 14 is composed of two prepregs, and is a bias type pattern in which the reinforcing fibers f intersect each other in the overlapped state.
As described above, the bias type sixth auxiliary pattern 14 is adopted when the swing type fishing rod is used, for example, the second rod and the third rod are twisted with each other in a state of being extended for use of the fishing rod. However, the torsional force acts on the No. 2 ball outlet.
In order to increase the resistance against the twisting force and the like, the sixth auxiliary pattern 14 is a bias type.

  (5) As shown in FIG. 11 (e), the second prepreg tape 12B having a narrow width is wound on the sixth auxiliary pattern 14 and the polymer A spirally over the entire length of the cored bar 6. The spiral advance direction of the second prepreg tape 12B is wound in the opposite direction so as to be symmetrical with the first prepreg tape 12A.

(6) As shown in FIGS. 11 (f) and 11 (g), the seventh auxiliary pattern 15 is wound. The seventh auxiliary pattern 15 is also composed of two prepregs like the sixth auxiliary pattern 14, and is a bias type pattern in which the reinforcing fibers f intersect each other in the overlapped state.
In this way, the bias type seventh auxiliary pattern 15 is adopted when the swinging type fishing rod is used, while being extended for use of the fishing rod, for example, while twisting the tip rod and the second rod with each other At this time, a torsional force acts on the former side portion of the second cage.
In order to increase the resistance against the screw force or the like, the seventh auxiliary pattern 15 is a bias type.

  (7) After winding the seventh auxiliary pattern 15, a predetermined forming tape is wound and fired to form a fishing rod material. After that, it is cut into a predetermined length and is subjected to paint finishing to form a fishing rod housing.

[Another embodiment]
(1) At least one of the first and second prepreg tapes 12A and 12B may be wound. Further, a separate prepreg may be wound around the outside of the main pattern 5 to form an outer layer.
That is, it is possible to form a casing having a plurality of layers formed by winding the main pattern 5 shown in the first to fourth embodiments as an intermediate layer.

(2) Here, a description will be given of what is differently wound when winding the winding start side 5A around the cored bar 6. Although not shown, as the main pattern 5, those described in the first embodiment and the second embodiment are used. In the first embodiment, the winding start side 5 </ b> A is wound around the axis X of the core bar 6 by an inclination angle α in a state where the base side is separated from the core bar 6.
On the other hand, the winding start side 5A is wound around the axis X of the core bar 6 by an inclination angle α in a state where the tip side is separated from the core bar 6. Thus, the winding start side 5A has a spiral shape. Therefore, the overlapped portion formed by the above-described stepped portion exhibits a spiral shape, thereby eliminating the uneven thickness state and improving the above-described drawbacks.

  (3) The fishing rod body can be applied not only to the spatula rod but also to all rods. In particular, a remarkable effect can be confirmed on a thin intermediate rod.

  (4) When the main pattern 5 is wound around the metal core 6, the main pattern 5 is wound at an inclination angle α. In this case, the main pattern 5 is not inclined by the amount of one ply described above, but a smaller number of plies, that is, 0.5 or You may wind by 0.7 ply. One ply or more may be wound.

(5) As the main pattern 5, the tip side 5C is composed of one sheet having a width corresponding to three plies, but a plurality of main patterns 5 divided into one ply are overlapped. Good.
Moreover, although what demonstrated the use of an axial fiber as a prepreg in the main pattern 5 and the 1st auxiliary | assistant pattern 8, although not shown in figure in the main pattern or the 1st auxiliary | assistant pattern 8 shown in FIG. A prepreg having circumferential fibers or a prepreg having inclined fibers may be used. Further, it may be a tubular body using a prepreg having cloth-like fibers.

  (6) For at least one of the fifth auxiliary pattern 13, the first and second prepreg tapes 12A and 12B, the sixth auxiliary pattern 14, and the seventh auxiliary pattern 15 shown in the fifth embodiment, It can be used in addition to the configuration based on the first auxiliary pattern 8.

  (7) As the main pattern 5 shown in the fifth embodiment, a pattern having reinforcing fibers aligned substantially in the axial direction and having the winding start side 5A cut in parallel to the reinforcing fibers is adopted. The polymer A may be formed.

  (8) The first auxiliary pattern 8 may not be lighter than the main pattern. Further, the winding start side 8A of the first auxiliary pattern 8 is not necessarily formed in a length parallel to the axis and having the axial length of the tubular body.

  In the present invention, the tubular body according to the present invention can be used not only for fishing rods but also for golf clubs, bicycle body frames, and the like.

5 main pattern 5A winding start side 5B winding end side 5C edge side 5D edge side 6 core metal 8 first auxiliary pattern 8A winding start side 9 second auxiliary pattern 10 third auxiliary pattern 11 fourth auxiliary pattern 12A first 1 prepreg tape 12B 2nd prepreg tape 13 5th auxiliary pattern 14 6th auxiliary pattern 15 7th auxiliary pattern α Inclination angle

Claims (14)

A tubular body comprising an inner layer and an outer layer,
The outer layer is made of a main pattern having an axial length sufficient to form a tubular body with a prepreg in which reinforcing fibers are aligned, and the winding start side of the main pattern has a spiral shape along the inner peripheral surface. Layer,
The inner layer is made of a first auxiliary pattern having an axial length sufficient to form a tubular body with a prepreg in which reinforcing fibers are aligned, or a length corresponding to a part of the main pattern. The pattern winding start side is a layer exhibiting a linear shape along the axis of the tubular body,
The main pattern and the first auxiliary pattern are formed in a tubular shape by being overlapped and wound into a cylindrical shape in a state where the winding start side of the main pattern is inclined with respect to the winding start side of the first auxiliary pattern body. Said first auxiliary pattern, the tubular body of claim 1 wherein Ru prepreg der of thickness less than the thickness of the main pattern. At least one of a layer wound with the first prepreg tape positioned inside the first auxiliary pattern or a layer wound with the second prepreg tape disposed outside the main pattern is disposed. The tubular body according to 1 or 2. Before SL main pattern has a reinforcing fiber having uniform pulling, the tubular body according to any one of claims 1 to 3, the MakiHajimehen are parallel to cut to the reinforcing fibers. The tubular body according to any one of claims 1 to 3, wherein the main pattern includes reinforced fibers that are aligned and is cut into a state in which a winding start side is inclined with respect to the reinforced fibers . The tubular body according to any one of claims 1 to 4, wherein the main pattern is cut into a plurality of layers . Further, among the plurality of layers having the aligned reinforcing fibers, the winding end sides of the layers positioned on the outside are arranged in a state of spiraling with respect to the axis of the tubular body from the front side to the original side. The tubular body according to any one of claims 1 to 6. The tubular body according to claim 7 , wherein the winding start side and the winding end side of the main pattern are configured to intersect with each other at a plurality of locations in a side view orthogonal to the axis of the tubular body. A method of manufacturing a tubular body which is created a main pattern of the prepreg aligned pull the reinforcing fibers are laminated wound into a cylindrical shape to the core metal,
The main pattern in which the winding start side is arranged in parallel to the aligned reinforcing fibers, and a first prepreg made of a prepreg having a sufficient axial length to form a tubular body with a thickness smaller than the thickness of the main pattern. An auxiliary pattern is superimposed, and the superimposed main pattern and the first auxiliary pattern are arranged such that the winding start side of the first auxiliary pattern is along the axis of the core metal, and the main pattern The tubular body is manufactured by forming the tubular body by sequentially winding the first auxiliary pattern in advance so that the winding start side is inclined with respect to the axis of the core bar toward the original side. . A method of manufacturing a tubular body which is created a main pattern of the prepreg aligned pull the reinforcing fibers are laminated wound into a cylindrical shape to the core metal,
The main pattern cut in a state in which the winding start side is inclined with respect to the aligned reinforcing fibers, and a prepreg made of a prepreg having a sufficient axial length to form a tubular body with a thickness smaller than the thickness of the main pattern. One auxiliary pattern is overlaid, and the main pattern and the first auxiliary pattern overlapped with each other so that the winding start side of the first auxiliary pattern is along the axis of the core metal, Manufacture of a tubular body in which the first auxiliary pattern is preceded and wound around the core bar sequentially to form a tubular body so that the winding start side of the pattern is inclined toward the original side with respect to the axis of the core bar Method. A method of manufacturing a tubular body which is created a main pattern of the prepreg aligned pull the reinforcing fibers are laminated wound into a cylindrical shape to the core metal,
The main pattern in which the winding start sides are arranged parallel to the aligned reinforcing fibers and the second auxiliary pattern made of prepreg having an axial length shorter than the axial length of the tubular body are overlapped, and the overlapping The main pattern and the second auxiliary pattern are arranged such that the winding start side of the second auxiliary pattern is along the axis of the cored bar, and the winding start side of the main pattern is the axis of the cored bar. A method of manufacturing a tubular body in which the second auxiliary pattern is preceded and wound around the core bar in order to form a tubular body so as to be inclined away from the original side. A method of manufacturing a tubular body which is created a main pattern of the prepreg aligned pull the reinforcing fibers are laminated wound into a cylindrical shape to the core metal,
The main pattern cut in a state in which the winding start side is inclined with respect to the aligned reinforcing fibers and the second auxiliary pattern made of prepreg having an axial length shorter than the axial length of the tubular body are overlapped and overlapped. The combined main pattern and the second auxiliary pattern are arranged so that the winding start side of the second auxiliary pattern is along the axis of the core bar, and the winding start side of the main pattern is the core bar A method for manufacturing a tubular body, wherein the tubular body is formed by winding the second auxiliary pattern in advance and winding the core in order so as to be inclined toward the original side with respect to the axis. A method of manufacturing a tubular body which is created a main pattern of the prepreg aligned pull the reinforcing fibers are laminated wound into a cylindrical shape to the core metal,
A first prepreg made of a prepreg having a sufficient axial line length to form a tubular body with a thickness smaller than the thickness of the main pattern and the main pattern, wherein the winding start side is inclined with respect to the aligned reinforcing fibers. The auxiliary pattern is overlaid, and the third auxiliary pattern having a shape smaller than the first auxiliary pattern is positioned at a predetermined distance from the front end of the first auxiliary pattern and the original auxiliary end position of the first auxiliary pattern A fourth auxiliary pattern having a shape smaller than the first auxiliary pattern is overlaid so as to overlap the winding start side of the main pattern, and the superimposed main pattern, the first auxiliary pattern, the third auxiliary pattern, and the first 4 The polymer with the auxiliary pattern is formed such that the winding start side of the first auxiliary pattern is in a state along the axis of the core metal, and the winding of the main pattern Edges so is inclined state away as source side with respect to the axis of the core, the manufacturing method of the tubular body forming a tubular body by winding sequentially the core metal by preceding the first auxiliary pattern. A method for producing a tubular body according to claim 13,
Prior to winding the superposed polymer around a cored bar, the first prepreg tape having a narrow width is spirally wound over substantially the entire length of the polymer, and the polymer is A method for producing a tubular body, in which a second prepreg tape having a narrow width is spirally wound over the entire length of the polymer to form a tubular body.

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