JP2005040103A - Method for producing rod member - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method for producing a fishing rod giving decreased weight in handling at a reduced production cost while unifying with the outer diameter of a butt plug. <P>SOLUTION: This production method contains a step to prepare a tapered core material 100, a step to wind a main prepreg sheet P1 on the core material 100 and a step to wind a heavy prepreg sheet P2 on the circumference of the butt side of the main prepreg sheet P1 wound on the core material 100. The main prepreg sheet P1 is produced by laminating a 1st axial sheet A and a 2nd sheet B obtained by impregnating a synthetic resin in an axially oriented reinforcing fiber and forming the obtained prepreg material in the form of a sheet, and the heavy prepreg sheet P2 is obtained by impregnating a synthetic resin mixed with heavy weight powder in an axially oriented reinforcing fiber and forming the obtained heavy prepreg in the form of a sheet. The heavy prepreg sheet P2 is wound on the circumference of the main prepreg sheet P1 within a definite axial range from the butt end of the 2nd sheet B. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to a method for manufacturing a rod constituting a fishing rod used for fishing. In particular, the present invention relates to a method of manufacturing a rod that is located closest to the rod in a fishing rod formed by connecting a plurality of rods.

  A general fishing rod is a long one made by connecting a plurality of tubular rods formed by firing carbon fiber reinforced resin or the like. A reel sheet, a fishing line guide, and a grip for a fisherman to grip at the end of the rod side are mounted on the peripheral surface of each rod. A fisherman performs a fishing operation by gripping a grip or a reel seat at the proximal end of the frame.

  One of the problems that arise in such a long fishing rod is an imbalance in the position of the center of gravity in the axial direction of the fishing rod. When looking at the whole fishing rod, the angler feels the tip of the fishing rod heavier during the fishing operation because the angler performs the fishing operation while holding the reel seats and grips that are biased toward the hand side (so-called `` feeling of holding '') Will occur).

In order to improve the operability of the fishing rod by eliminating such a feeling of weight, a weight is attached to and detached from the proximal end of the rod body (hereinafter referred to as “general rod”) located closest to the hand of the fishing rod. A fishing rod that can be freely mounted has also been proposed (see Patent Document 1).
JP-A-10-271936

  However, as in the technique disclosed in Patent Document 1 described above, in order to attach a weight separately to the housing, it is necessary to provide a part or mechanism for attaching the weight to the housing, which increases the manufacturing process. Cost. Moreover, it is troublesome to remove the weight from the housing one by one. Accordingly, there is a demand for a housing that can eliminate the feeling of weight in the housing itself.

  In many cases, a plug member called a butt plug is detachably attached to the base end of the base rod. In general, such a butt plug is screwed into these screws by directly forming a thread groove on the inner peripheral surface of the base end portion of the base rod or by disposing a female screw member. If the outer diameter of the bottom plug does not match the outer diameter of the base end of the base when the bottom plug is screwed to the base, the appearance and the touch will be poor. Therefore, it is necessary to unify the outer diameter of the heel side end portion of the heel and the outer diameter of the butt plug. Since these butt plugs are general-purpose products and the outer diameter is often unified, in order to unify the outer diameter of the base end of the heel and the outer diameter of the butt plug as described above Therefore, it is necessary to make the outer diameter of the heel side end portion of the marshal rod constant.

  Therefore, in order to make the heel side end of the main shaft itself heavy, the thickness of the heel side end of the main heel is made thicker to eliminate the feeling of weight, and the uniformity with the outer diameter of the bottom plug is aimed at. From this point of view, it is subject to restrictions.

  In view of the above problems, the present invention provides a method for manufacturing a rod body that eliminates the feeling of lifting the fishing rod while reducing the manufacturing cost while unifying the outer diameter of the bottom plug. To do.

  The method according to the present invention is a method of manufacturing a main rod in which a reel sheet is arranged on the peripheral surface in a rod constituting a fishing rod used for fishing, and includes the following steps. A step of preparing a core material with a tapered taper. An axial prepreg sheet formed by laminating a first axial sheet and a second sheet obtained by processing an axial prepreg material obtained by impregnating a reinforcing fiber oriented in the axial direction with a synthetic resin into a sheet shape is wound around a core material. The process of turning. A weight prepreg sheet obtained by processing a weight prepreg in which a reinforcing resin oriented in the axial direction is impregnated with a synthetic resin mixed with a weight powder into a sheet shape is wound around the base side of the axial prepreg sheet wound around the core material. The process of winding on a surface. A step of firing each of these prepregs and removing the core material to form a tubular body.

  And the 1st sheet | seat which forms an axial direction prepreg sheet | seat is a shape that the winding width | variety with respect to a core material becomes large toward the heel side. The second sheet forming the axial prepreg sheet has such a shape that the winding width with respect to the core increases toward the base side, and the base side is within a certain axial range from the base side end. As the winding width becomes smaller, the winding width becomes zero at the base side end. Further, the heavy prepreg sheet is wound around the circumferential surface of the axial prepreg sheet in a certain axial range from the base end of the second sheet.

  In this method, the weight prepreg is laminated on the base side of the manufactured casing. The weight prepreg has a large specific gravity, and as a result, the weight side end of the frame is weighted to eliminate the “lifting feeling”.

  In addition, the second sheet of the axial prepreg has a smaller winding width toward the heel side in a certain axial range from the heel side end, and the wrapping width becomes zero at the heel side end. In the side end portion, the axial prepreg is formed only by the first sheet. Therefore, the heel side end of the housing is formed by the axial prepreg sheet and the heavy prepreg sheet formed only by the first sheet. Therefore, even if the weight prepreg is laminated, the flange side end portion of the frame manufactured by this manufacturing method is not unduly thickened, and the thickness of the flange side end portion is easily made constant.

  In addition, the winding process of the axial prepreg sheet includes a method in which the first sheet and the second sheet are laminated in advance to form an axial prepreg sheet and then wound around the peripheral surface of the core material. The sheet may be wound around the peripheral surface of the core material, and then the second sheet may be wound around the outer peripheral surface of the first sheet.

  According to the manufacturing method of the present invention, it is possible to eliminate the feeling of lifting the fishing rod and reduce the manufacturing cost while unifying the outer diameter of the bottom plug.

  Embodiments of the present invention will be described below with reference to the drawings.

  A fishing rod comprising a rod adopting the embodiment of the present invention is formed as a single fishing rod by connecting a plurality of rods by a well-known connecting method such as a side-by-side type or a swing-out type. FIG. 1 shows a portion of the fishing rod on the base side. In detail, this fishing rod is composed of a marine rod 1 and a plurality of rod bodies R connected to the tip side of the marine rod 1.

  The base rod 1 is a tapered tubular body formed from a carbon fiber reinforced resin or the like. A fishing line guide 4 is provided on the peripheral surface on the tip side of the tubular body 10 of the main rod 1, and a reel sheet 5 for detachably mounting the reel is provided on the peripheral surface on the base side. On the tip side and the heel side of the reel sheet 5, a grip 6 is attached to the peripheral surface of the tubular body 10 as necessary. Further, a bottom plug 7 is attached to the end of the tubular body 10 so as to be detachable. For example, a thread groove is formed directly on the inner peripheral surface of the heel side end of the tubular body 10, and the butt plug 7 is screwed thereto.

  As will be described later, the reel sheet 5 is a pipe-type member, and is attached and fixed to the peripheral surface of the tubular body 10 with an adhesive or the like. The reel seat 5 includes a fixed hood and a movable hood that slides in the axial direction. The fixed hood and the movable hood sandwich and fix the leg portion of the reel. In addition, a thread groove is directly formed on the inner peripheral surface of the base side end portion of the tubular body 10 or a nut member is attached. The tail plug 7 is screwed into this thread groove or nut member. The grip 6 is a pipe-like member made of elastic rubber or the like, and is fixed to the peripheral surface of the tubular body 10 at a predetermined axial position with an adhesive or the like. The fishing line guide 4 is a member for guiding the fishing line from the reel mounted on the reel seat 5.

  Next, a method for manufacturing the mortar 1 will be described in detail with reference to FIG.

  First, as shown in FIG. 3 (a), a release agent such as wax is applied to the outer periphery of a mandrel (core material) 100, which is a rod having a predetermined tapered taper, as necessary. Further, if necessary, a lower winding slit tape (not shown) is spirally wound around the peripheral surface of the mandrel 100 without a gap. Then, the main prepreg sheet P1 is wound around the peripheral surface of the mandrel 100.

The main prepreg P1 is obtained by processing two types of axial prepreg materials in which reinforcing fibers such as carbon fibers or glass fibers are aligned in the axial direction of the mandrel 100 and impregnated with a synthetic resin into a sheet shape. The tensile elasticity of the reinforcing fiber in the axial direction is set to ²⁰ to 46 t / mm ² . As shown in FIG. 2, the main prepreg P <b> 1 is formed from two types of sheets, a first sheet A and a second sheet B. These sheets are obtained by processing an axial prepreg material obtained by impregnating a reinforcing fiber such as carbon fiber or glass fiber oriented in the axial direction of the mandrel 100 with a synthetic resin into a sheet shape. The first sheet A is formed in such a shape that the winding width increases toward the base side in accordance with the taper of the mandrel 100 (in FIG. 2, the vertical width increases toward the base side (right side)). Has been. Similarly to the first sheet A, the second sheet B is also formed in a shape such that the winding width increases toward the heel side in accordance with the taper of the mandrel 100, particularly from the heel side end. In a certain axial direction range, the winding width becomes smaller toward the heel side, and the winding width becomes zero at the heel side end. That is, the edge side end portion of the second sheet B has a shape obtained by cutting a part of the edge side of the first sheet A into a triangular shape (see the X portion in FIG. 2). In this embodiment, the first sheet A and the second sheet B are wound in a certain range in the axial direction in a part of the longitudinal direction (the axial direction of the mandrel 100) in accordance with the shape of the mandrel 100. A portion where the rotation width does not change is also provided (see the Y portion in FIG. 2).

  As shown in FIG. 3A, the main prepreg P1 is obtained by previously superposing the first sheet A and the second sheet B to form the main prepreg P1, and winding the pre-superposed one around the mandrel 100. Also good. However, first, the first sheet A may be wound around the peripheral surface of the mandrel 100, and then the second sheet B may be wound around the peripheral surface of the first sheet A. Conversely, the second sheet B can be wound around the peripheral surface of the mandrel 100, and then the first sheet A can be wound around the peripheral surface of the second sheet B.

  Next, as shown in FIG. 3B, the weight prepreg sheet P2 is wound around the peripheral surface of the main prepreg P1. The weight prepreg sheet P2 is wound around the circumferential surface of the axial prepreg sheet P1 in a certain axial range (that is, an X portion that is cut into a triangular shape) from the base side end of the second sheet B described above. Has been. The weight prepreg sheet P2 is a sheet in which reinforcing fibers such as carbon fibers or glass fibers are aligned in the axial direction of the mandrel 100 and impregnated with a synthetic resin. Heavy powder is mixed in the synthetic resin, and the specific gravity of the heavy prepreg sheet P2 is increased. For example, the specific gravity is set to about 2-18. Examples of the heavy powder include glass powder and tungsten powder. It is preferable to unify the tensile elastic modulus of the reinforcing fibers of the weight prepreg sheet P2 with that of the main prepreg sheet P1 in order to unify the bending rigidity of the main shaft 1.

  Further, as shown in FIG. 3B, the auxiliary prepreg sheet P3 is wound around the peripheral surfaces of the prepreg sheet P1 at a predetermined axial position on the peripheral surface of the wound main prepreg sheet P1. The number of windings is about 1 to 3 plies. As the auxiliary prepreg sheet P3, one in which reinforcing fibers are aligned in the circumferential direction of the mandrel 100, or one in which reinforcing fibers obliquely inclined in both positive and negative directions from the axial direction are knitted in a cross shape is used.

  Thereafter, if necessary, another auxiliary prepreg or the like is wound around the outer peripheral surface of the tip end portion of the main prepreg sheet P1 for reinforcement, and the prepreg tape is wound spirally around the peripheral surface of these prepreg sheets without any gaps. To do. The prepreg tape is obtained by processing a prepreg material in which reinforcing fibers are aligned in the longitudinal direction of the tape and impregnated with a synthetic resin into a tape shape. Further, a molding material made of polyethylene terephthalate or polypropylene is wound around the outer periphery with strong pressure to obtain a bag material.

  The fired material is fired in a furnace, the molding tape is peeled off, the mandrel 100 is decentered, and the tubular body 10 is obtained. Both ends of the tubular body 10 are cut off to have a predetermined axial length, and the peripheral surface is subjected to polishing or the like to perform necessary peripheral surface coating. Further, a pipe-shaped reel sheet 5 is attached to a portion where the above-described auxiliary prepreg sheet P3 is wound, and is fixed with an adhesive or the like. In addition, the base 6 is manufactured by attaching the grip 6 and the bottom plug 7 and the like.

  In the main fence 1 manufactured by this method, the weight prepreg sheet P2 is laminated on the main base side of the manufactured main fence 1. The specific gravity of the weight prepreg sheet P2 is large, and as a result, the heel side end portion of the main rod 1 is partly weighted, and the “lifting feeling” as the whole fishing rod is eliminated.

  Further, the second sheet B of the main prepreg sheet P1 is cut into a triangular shape in a certain axial range from the base end thereof, and the winding width is zero at the base end. Therefore, the main prepreg sheet P <b> 1 is formed only by the first sheet A at the base side end portion of the base rod 1. That is, the heel side end portion of the base rod 1 is formed from the main prepreg sheet P1 and the heavy prepreg sheet P2 formed of only the first sheet A. Therefore, even if the weight side prepreg sheet P2 is laminated, the edge side end portion of the heel 1 manufactured by this manufacturing method is not unduly thickened, and the thickness of the heel side end is easily made constant. (If necessary, the thickness is further adjusted by polishing or the like, but such polishing is also easy because the material itself is not unduly thickened). Therefore, it is easy to use a general-purpose bottom plug 7.

The figure which showed Marshal 1 which employ | adopted one Embodiment of this invention. The figure which showed the main prepreg sheet | seat P1. The figure which shows the manufacturing process of Marshal.

Explanation of symbols

1 Genroku 5 Reel sheet P1 Main prepreg sheet P2 Weight prepreg sheet P3 Auxiliary prepreg sheet A First sheet B Second sheet

Claims (2)

A method of manufacturing a marine rod in which a reel sheet is arranged on a peripheral surface in a rod body constituting a fishing rod used for fishing,
A step of preparing a tapered taper core;
An axial prepreg sheet formed by laminating a first axial sheet and a second sheet obtained by processing an axial prepreg material in which a reinforcing fiber oriented in the axial direction is impregnated with a synthetic resin into a sheet shape is used as the core material. Winding around
A weight prepreg sheet obtained by processing a weight prepreg impregnated with a synthetic resin in which a weight powder is mixed into a reinforcing fiber oriented in the axial length direction into a sheet shape, and the base side of the axial prepreg sheet wound around the core material Winding around the circumference of the
Firing each of these prepregs and removing the core material to form a tubular body,
The first sheet forming the axial prepreg sheet is shaped so that the winding width with respect to the core material increases toward the base side,
The second sheet forming the axial prepreg sheet is shaped so that the winding width with respect to the core material increases toward the base side, and within a certain axial range from the base side end. The winding width becomes smaller toward the side and the winding width is zero at the base side end,
The weight prepreg sheet is a method of manufacturing a casing, wherein the weight prepreg sheet is wound around a circumferential surface of the axial prepreg sheet in a certain axial range from a base end of the second sheet.   The winding step of the axial prepreg sheet is to wind the first sheet around the peripheral surface of the core material, and then wind the second sheet around the outer peripheral surface of the first sheet. Item 2. A method for manufacturing a casing according to Item 1.

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