JP2003125676A - Spinning rod and method for producing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for producing a simple spinning rod which can prevent a cracking breakage and the like. SOLUTION: This method for producing the spinning rod comprises preparing a main pattern 52 comprising a prepreg raw material in which a winding width is gradually increased from the tip portion to the butt portion, preparing an auxiliary pattern 51 having a larger winding width by one or more rotations than a winding width in the tip portion, laminating the main pattern 52 onto the auxiliary pattern 51 in a lower end-arranged state, winding the auxiliary pattern 51 and the main pattern 52 on a mandrel 50 from the lower end side of the auxiliary pattern 51, and then curing the obtained spinning rod raw material.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a rod body that constitutes a fishing rod.

[0002]

2. Description of the Related Art A rod body that constitutes a fishing rod is required to be lightweight and have excellent mechanical strength such as impact resistance and flexibility. Therefore, for example, a rod body of a conventional fishing rod is obtained by processing a fiber reinforced resin obtained by impregnating a reinforced fiber such as carbon fiber or glass fiber with a synthetic resin (generally called “prepreg”) around a core material. It is manufactured by firing.

This prepreg is not limited to one type, and a prepreg in which reinforcing fibers are aligned in the circumferential direction of the core material, a prepreg in which reinforcing fibers are aligned in the axial direction of the core material, and the like are available. In addition, there are various prepregs with different types of reinforcing fibers and elastic moduli. And
A rod body is manufactured by appropriately selecting or stacking these. By thus winding or selectively using a plurality of types of prepregs, the strength and rigidity of the rod body in the circumferential direction and the axial direction are made good.

[0004]

Among the rod bodies, the tip rod, which is located at the most tip side of the fishing rod and is a rod body having a small diameter and a thin wall, is a rod on the side of the rod that is processed into a thick and large diameter rod. Unlike the body, it is difficult to stack and process multiple types of prepregs in multiple layers. Therefore, a prepreg in which reinforcing fibers are aligned in the cross direction (the reinforcing fibers are ± 5 to 90 from the axial direction of the rod body)
Angled in a range of degrees and aligned in a predetermined angle range while overlapping each other), and this is wound around a core material to produce a thin and thin tip rod. Many. Then, in order to maintain the strength of the entire tip rod, a relatively strong reinforcing fiber is used here.

[0005] However, the following problems have been pointed out in the tip rod constituted only by such a cross direction prepreg. That is, the rod body is cut and processed at both ends in order to have an appropriate axial length after firing, but at this time, at the end portion made only of strong reinforcing fibers in the cross direction, the cut-off end portion, particularly, a small diameter The fibers may be peeled or cracked on the inner and outer peripheral surfaces of the tip end.

[0006] In addition, a top guide, a fishing line locking device, etc. are often attached and fixed to the tip side of the tip rod. Therefore,
In order to make the inner peripheral surface or the outer peripheral surface of the tip side end of the tip rod an adhesive surface, it is necessary to perform "roughening" or the like on the surface by brushing. However, it is difficult to perform such "roughening" with a prepreg that uses strong reinforcing fibers.

An object of the present invention is to provide a simple method for manufacturing a rod body which can prevent cracking or peeling during processing.

[0008]

The rod body of the invention 1 is a rod body formed by laminating a main pattern and an auxiliary pattern made of a prepreg material obtained by impregnating reinforcing fibers with a synthetic resin. A main body portion formed by stacking, an inner peripheral layer formed by laminating an auxiliary pattern on the inner peripheral surface of the main body portion at the tip end side end portion of the main body portion, and an outer peripheral surface of the main body portion at the tip end side end portion of the main body portion An outer peripheral layer formed by laminating an auxiliary pattern on the inner peripheral layer, and an intermediate layer formed of at least one auxiliary pattern interposed in the main body portion between the inner peripheral layer and the outer peripheral layer. The auxiliary pattern forming the intermediate layer is made of one prepreg material.

In this rod body, an auxiliary pattern is laminated on the inner peripheral surface and the outer peripheral surface of the tip side end of the rod body to form an inner peripheral layer and an outer peripheral layer. Also, by using a prepreg material in which glass fibers are oriented in the axial direction and impregnated with an epoxy resin or the like, cracking or peeling of the inner peripheral surface or the outer peripheral surface can be suppressed. In addition, the "roughening" that is partially performed on the inner peripheral surface and the outer peripheral surface becomes easy.

Further, in this rod body, since the intermediate layer of the auxiliary pattern is interposed between the inner peripheral surface and the outer peripheral surface, the cutting processing of the tip side end is facilitated, and the rod tone of the tip side end is provided. Can be good. Since each of the inner layer, the intermediate layer, and the outer layer is composed of one auxiliary pattern,
It is efficient because it can be easily laminated in one step during manufacturing.

The method of the invention 2 is a method for producing a rod body by winding a prepreg material obtained by impregnating a reinforcing fiber with a synthetic resin around a core material, and including the following steps. First, prepare a main pattern made of a prepreg material whose winding width gradually increases from the tip side toward the rod side, and an auxiliary pattern having a winding width that is one or more turns larger than the winding width of the tip side portion of the main pattern is prepared. The auxiliary pattern is prepared and laminated with the lower end aligned on the main pattern, the auxiliary pattern and the main pattern are wound around the core from the lower end side to obtain a rod material, and the rod material is fired.

In this method, when the prepreg material is wound around the core material, an auxiliary pattern is previously laminated on the tip side portion of the main pattern, and both are integrally wound around the core material. . Here, the auxiliary pattern has a winding width of one or more turns than the main pattern in a state where the lower end is aligned with the main pattern in the tip side portion. In this method, the auxiliary pattern is laminated on the main pattern, and when these patterns are wound around the core material from the lower end side, the auxiliary pattern is wound as the innermost layer for the core material. Further, the surplus portion of the auxiliary pattern is also wound around the outermost layer. Further, the auxiliary pattern as an intermediate layer may be interposed between the main patterns. In this way, it is possible to extremely easily laminate the auxiliary patterns partially on the tip side and on the outermost and innermost layers by one operation.

The method of the invention 3 is a method for manufacturing a rod body by winding a prepreg material obtained by impregnating reinforcing fibers with a synthetic resin around a core material, and includes the following steps. That is, a main pattern made of a prepreg material whose winding width is gradually increased from the tip side toward the rod side is prepared, and an auxiliary pattern having a winding width larger than one winding width than the winding width of the tip side portion of the main pattern is prepared. Prepare, stack the main pattern on the auxiliary pattern with the lower end aligned, and wind the auxiliary material and the main pattern from the upper end side of the auxiliary pattern to the core material to obtain a rod material, and then burn this rod material To do.

In this method, when the prepreg material is wound around the core material, an auxiliary pattern is previously laminated on the tip side portion of the main pattern, and both are integrally wound around the core material. . Here, the auxiliary pattern has a winding width of one or more turns from the main pattern in a state where the lower end is aligned with the main pattern in the tip side portion, and when the auxiliary material is wound from the upper end side, The auxiliary pattern will be wound as the innermost layer for the material. Further, the main pattern is laminated on the auxiliary pattern, and the auxiliary pattern is also wound as the outermost layer. Further, the auxiliary pattern as an intermediate layer may be interposed between the main patterns. In this way, it is possible to extremely easily laminate the auxiliary patterns partially on the tip side and on the outermost and innermost layers by one operation.

The method of the invention 4 is the method of the invention 2 or 3, wherein the main pattern is made of a prepreg material in which carbon fibers are oriented in the cross direction, and the auxiliary pattern is made of glass fibers in the circumferential direction and / or the axial direction. Made of oriented prepreg material.

Although glass fiber is inferior in strength to carbon fiber, it is a material that can be easily processed. By using a prepreg material in which glass fibers are oriented in a predetermined direction as the auxiliary pattern, it is easy to process the tip side end of the rod body.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION [First Embodiment] A first embodiment of the present invention will be described below with reference to the drawings.

The fishing rod adopting the first embodiment of the present invention is
As shown in FIG. 1, a plurality of rod bodies are sequentially connected in a drawing manner. That is, the base rod 1 is located closest to the base of the rod and has a large diameter, and the base rod 2, the head holding rod 3, and the tip rod 40 which are sequentially connected to the tip side thereof. Each of these rod bodies is a tapered cylindrical body formed by impregnating reinforcing fibers such as carbon fibers and glass fibers with a synthetic resin. The tip end portion and the rod base end portion of each rod body can be fitted to each other, and can be fitted and fixed when the rod bodies are successively drawn out. A grip for a fisherman to hold may be provided at the rod-side end of the base rod 1, and a bottom plug 5 is detachably attached to the rod-side end of the rod 1. .

The small-diameter tip rod 4 located closest to the tip of the fishing rod is also a tapered cylindrical body made of a prepreg containing carbon fibers and the like, as described above. As shown in FIG. 2, a fishing line locking device 10 is connected and fixed to the tip end side end of the tip rod 4. The fishing line locking device 10 has a main body portion 11 that is inserted and fixed to the tip end side tip of the tip rod 4 and is provided so as to protrude to the cylindrical portion disposed on the tip side in the main body portion 11 and the tip side thereof. The rotating body 12 includes a columnar portion on which the fishing line L is locked, and a disc-shaped retaining portion 13 that is detachably provided at the tip of the columnar portion of the rotating body 12 on the tip side. In the fishing line locking device 10, the fishing line L is locked on the columnar portion of the rotating body 12, and the rotating body 12 rotates together with the rotation of the fishing line L to prevent the fishing line L from being entangled.

As shown in the enlarged and schematic view of FIG. 3, two different types of prepreg layers are alternately laminated at the tip end side of the tip rod 4. That is, the main prepreg layer 20 and the auxiliary prepreg layer 21 that form the entire tip rod 4. The auxiliary prepreg layer 21 forms at least an outermost layer and an innermost layer on the tip side of the tip rod 4, and is also interposed as an intermediate layer between the outermost layer and the innermost layer. The tip side inner peripheral surface of the tip rod 4 is subjected to a brushing process or the like, and the main body portion 11 of the fishing line locking device 10 is inserted and adhered to the roughened surface.

As will be described later, the main prepreg layer 20 has carbon fibers oriented in a direction that deviates within a range of ± 30 to 90 degrees from the axial direction of the tip rod 4 and is aligned while overlapping in a predetermined angle range. It is made of a material impregnated with epoxy resin or the like. On the other hand, the auxiliary prepreg layer 21 is made of a material in which glass fibers are oriented in the circumferential direction and the axial direction and impregnated with an epoxy resin or the like. The length in the axial direction in which the auxiliary prepreg layer 21 exists is preferably about 20 to 40 mm from the tip side end.

The tip rod 4 is specifically manufactured as follows. As schematically shown in FIG. 4, a tapered cylindrical mandrel (core material) having a predetermined taper is formed.
50 is prepared, and a mold release agent or the like is applied to the peripheral surface thereof as needed. Then, a peeling tape (not shown) made of polypropylene or the like is spirally wound around the outer circumference.
This peeling tape depends on the size of the tip rod 4 to be manufactured, but in general, the width is 5 to 15 mm and the thickness is 20.
It is preferable to use one having a thickness of about 30 μm.

Then, the main pattern 52 is superposed on the auxiliary pattern 51 on the outer periphery of the mandrel wound with the peeling tape as needed, and is wound on the mandrel 50. More specifically, the auxiliary pattern 51 is laminated on the tip side portion of the main pattern 52 (in the range of about 20 to 40 mm from the tip side end as an axial length), and the auxiliary pattern 51 is the main pattern 52. Further, in this portion, the winding width is longer than the one turn of the mandrel 50 (see FIG. 4). Then, the auxiliary pattern 51 is wound around the mandrel 50 sequentially from the auxiliary pattern 51 protruding toward the upper end after aligning the lower ends of the main pattern 52 at the tip end side of the main pattern 52.

The auxiliary pattern 51 is made of a prepreg material in which glass fibers are oriented in the circumferential direction and the axial direction and impregnated with epoxy resin, and constitutes the above-mentioned auxiliary prepreg layer 21. It has a substantially trapezoidal shape whose axial length is longer toward the lower end. On the other hand, the main pattern 52 is a sheet-shaped prepreg material that extends over the entire axial length of the mandrel 50, and is made of a prepreg material in which carbon fibers are oriented in the cross direction and impregnated with an epoxy resin. Then, the main pattern 52 constitutes the main prepreg layer 20 described above.

After that, a molding tape is wound while applying pressure to the outer circumference of these materials as necessary, and this is baked in a furnace to cure and integrate both prepreg materials. continue,
The mandrel 50 is pulled out, both ends are trimmed and adjusted to an appropriate length, the molding tape on the outer peripheral surface and the peeling tape present on the inner peripheral surface are peeled off, the peripheral surface is polished and smoothed, and the necessary surface coating is applied. . Especially for the inner peripheral surface of the tip side end,
Roughen the inner surface by brushing.
Then, the fishing line locking device 10 is inserted into and bonded to the end portion on the side of the tip to manufacture the tip rod 4.

By such a method, the auxiliary pattern layer 21 can be laminated partially on the tip side of the tip rod 4 and on the outermost and innermost layers by a single operation. And the tip rod 4
Occurrence of cracks at the time of cutting the edge of the and surface roughening can be easily performed.

[Second Embodiment] Another method for manufacturing the tip rod 4 according to the first embodiment will be described below. As schematically shown in FIG. 5, a tapered cylindrical mandrel (core material) 50 having a predetermined taper is prepared, and a peripheral surface thereof is coated with a release agent or the like as necessary. Then, a peeling tape (not shown) made of polypropylene or the like is spirally wound around the outer circumference.

Next, the main pattern 52 is formed on the outer periphery of the mandrel wound with the peeling tape as needed.
The auxiliary pattern 51 is overlapped on the above and wound around the mandrel 50. The sizes of the auxiliary pattern 51 and the main pattern 52 are the same as those in the first embodiment. Then, the auxiliary pattern 51 is wound around the mandrel 50 in such a manner that the lower end sides of the auxiliary pattern 51 are aligned at the tip end side end of the main pattern 52, and the auxiliary pattern 51 directly contacts the mandrel 50 from this lower end side.

After that, a molding tape is wound while applying pressure to the outer circumference of these materials as needed, and this is baked in a furnace to cure and integrate both prepreg materials. continue,
The mandrel 50 is pulled out, both ends are trimmed and adjusted to an appropriate length, the molding tape on the outer peripheral surface and the peeling tape present on the inner peripheral surface are peeled off, the peripheral surface is polished and smoothed, and the necessary surface coating is applied. . Especially for the inner peripheral surface of the tip side end,
Roughen the inner surface by brushing.
Then, the fishing line locking device 10 is inserted into and bonded to the end portion on the side of the tip to manufacture the tip rod 4.

By such a method, the auxiliary pattern layer 21 can be laminated partially on the tip side of the tip rod 4 and as the outermost layer / innermost layer by a single operation.

[0031]

According to the method of the present invention, it is possible to prevent cracking and peeling during processing by a simple manufacturing method.

[Brief description of drawings]

FIG. 1 is an overall view of a fishing rod adopting a first embodiment of the present invention.

FIG. 2 is an enlarged sectional view of the tip rod 4 of FIG.

FIG. 3 is a cross-sectional view schematically showing the tip end side portion of the tip rod 4 of FIG.

FIG. 4 is a view showing a method for manufacturing the tip rod 4 of FIG.

FIG. 5 is a view showing a method of manufacturing the tip rod 4 adopting the second embodiment of the present invention.

[Explanation of symbols]

4 Ear pole 20 Main prepreg layer 21 Auxiliary prepreg layer 51 Auxiliary pattern 52 main patterns

Claims (4)

[Claims] 1. A rod body formed by laminating a main pattern and an auxiliary pattern made of a prepreg material obtained by impregnating reinforcing fibers with a synthetic resin, the main body being formed by laminating the main pattern, An inner peripheral layer formed by laminating an auxiliary pattern on the inner peripheral surface of the main body at the tip side end of the main body, and an auxiliary pattern laminated on the outer peripheral surface of the main body at the tip side end of the main body. And an intermediate layer composed of at least one or more auxiliary patterns interposed in the main body portion between the inner and outer peripheral layers to form the inner and outer peripheral layers and the intermediate layer. The auxiliary pattern is a rod made of a single prepreg material. 2. A method for manufacturing a rod body by winding a prepreg material obtained by impregnating reinforcing fibers with a synthetic resin around a core material, the prepreg material having a winding width gradually increasing from the tip side toward the rod side. A main pattern consisting of, and an auxiliary pattern having a winding width larger than the winding width of the tip side portion of the main pattern by one or more turns is prepared, and the lower end of the auxiliary pattern is aligned on the main pattern. A method for manufacturing a rod body, which comprises stacking, winding the auxiliary pattern and the main pattern around the core member from the lower end side to obtain a rod material, and firing the rod material. 3. A method of manufacturing a rod body by winding a prepreg material obtained by impregnating reinforcing fibers with a synthetic resin around a core material, the prepreg material having a winding width gradually increasing from the tip side toward the rod side. A main pattern consisting of, and preparing an auxiliary pattern having a winding width larger than the winding width of the tip side portion of the main pattern by one or more turns, and aligning the lower end of the main pattern on the auxiliary pattern. A method for manufacturing a rod body, comprising stacking, winding the auxiliary pattern and the main pattern around the core material from the upper end side of the auxiliary pattern to obtain a rod material, and firing the rod material. 4. The main pattern is made of a prepreg material in which carbon fibers are oriented in a cross direction, and the auxiliary pattern is made of a prepreg material in which glass fibers are oriented in a circumferential direction and / or an axial direction. 3. The method for manufacturing a rod body according to item 3.