JP4148851B2 - Fishing rod manufacturing method - Google Patents

Description

  The present invention relates to a method for manufacturing a rod constituting a fishing rod used for fishing.

    A fishing rod body is required to be lightweight and have excellent mechanical strength such as impact resistance and flexibility. Therefore, a conventional fishing rod rod body is made of, for example, a fiber reinforced resin obtained by impregnating a reinforced fiber such as carbon fiber or glass fiber with a synthetic resin into a sheet (generally referred to as a “prepreg sheet”) as a core material. It is manufactured by winding and baking. The prepregs wound around the core material are used in combination with those in which reinforcing fibers are aligned in the axial length direction or in which reinforcing fibers are aligned in the circumferential direction in order to ensure bending rigidity in the axial length direction. . The characteristics of various prepregs affect the rigidity and strength in the circumferential direction and the axial direction of the casing to be manufactured.

By the way, there is a possibility that the strength and rigidity anisotropy in the circumferential direction, thickness deviation, etc. may occur due to the arrangement and overlapping of the prepregs wound around the core when the casing is manufactured. These may damage the flexible bending of the chassis and may impair the operability of the chassis. In order to avoid such a problem of the casing, various techniques have been proposed (for example, a technique in which a prepreg sheet to be wound is shifted and wound: refer to Patent Document 1, Patent Document 2, etc.).
JP 2001-238575 A JP-A-11-178479

  However, the techniques that have been proposed so far only avoid anisotropy and uneven thickness of one casing when manufacturing one casing. As already mentioned, a fishing rod is a long fishing rod that is formed by connecting individual manufactured rods. Therefore, even if avoiding circumferential strength anisotropy or uneven thickness in one housing, anisotropy of strength / rigidity between one housing to be connected to another housing, etc. If there is, there is a risk that the whole fishing rod will bend flexibly and the operability may be impaired when viewed as a single fishing rod.

  An object of the present invention is to provide a method for manufacturing a fishing rod having excellent operability by unifying (continuing) characteristics such as a change in rigidity of the fishing rod as a whole in a fishing rod connecting a plurality of rods.

  The method of the present invention is a method for manufacturing a fishing rod constructed by connecting a plurality of rods, and includes the following steps. A step of winding a single fiber-reinforced resin sheet covering the entire axial direction of the core material in which the reinforcing fibers are oriented in the axial direction around the core material having the axial length of the desired fishing rod to which the taper is tapered . A step of firing the wound fiber reinforced resin sheet. A step of cutting the fired fiber reinforced resin sheet into a desired length to form a plurality of casings. The process of providing the connection part for mutually connecting the some housing cut | disconnected in several housings.

  In this method, a fiber reinforced resin sheet (prepreg sheet) having a length in the axial direction of the entire fishing rod is wound around a core material to produce a cylindrical body that forms the entire fishing rod from a single fiber reinforced resin sheet. Then, the formed continuous cylindrical body is cut and divided into individual casings. Originally, since the entire fishing rod is formed from one fiber-reinforced resin sheet, the characteristics of the formed cylindrical body are uniform. Therefore, if a connecting portion is provided in each individual casing which is divided into separate and independent casings and connected like the original cylindrical body, it has the uniform characteristics of the original fiber reinforced resin sheet. Become a fishing rod.

  Furthermore, by forming one continuous cylindrical body together in this way and then cutting it, the manufacturing process can be simplified and the manufacture is facilitated.

  In addition, in this method, after winding a fiber reinforced resin sheet, it is good also as a thing including the process of winding an auxiliary | assistant prepreg to the at least outer peripheral surface of the cutting position of a fiber reinforced resin sheet. By winding the auxiliary prepreg at the cutting site, the crushing strength of the site is secured.

  Moreover, in this method, after winding a fiber reinforced resin sheet, it is good also as a thing further including the process of giving the marking extended to an axial direction to the at least outer peripheral surface of the cutting position of a fiber reinforced resin sheet. By connecting the individual casings divided so as to match the markings, the individual casings can be connected in the circumferential direction as in the original cylindrical body, and the characteristics in the circumferential direction can be unified.

  In this method, the step of cutting the fired fiber reinforced resin sheet may be performed by cutting the fiber reinforced resin sheet in a direction inclined with respect to the axial direction. If the individual casings are connected so as to align the inclined cut surfaces, the individual casings can be connected in the circumferential direction as in the original cylindrical body, and the characteristics in the circumferential direction can be unified.

  In the method of the present invention, characteristics such as changes in rigidity of the entire fishing rod can be unified (continuous) in a fishing rod connecting a plurality of rods. Such a fishing rod has good operability.

[First Embodiment]
(Structure of fishing rod)
Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.

  As shown in FIG. 1, a fishing rod that employs an embodiment of the present invention is a single fishing rod that is formed by connecting a plurality of rods in a form called a seal joint. For example, it is composed of four frame bodies of a genius 1 located on the most proximal side, and a motogami cocoon 2, a middle cocoon 3 and a stylus 4 which are sequentially connected to the stylus side of the genius 1. Although the number of rods can be set arbitrarily, as will be described in detail later, when manufacturing a fishing rod by the method according to the present invention, the number of rods is preferably about 2 to 4. Specifically, the present invention can be applied to a boat rod or a bus rod whose axial length is relatively short.

  Each casing is a tapered cylindrical body formed of a fiber reinforced resin (prepreg material) as described later. For example, in the case 1, an inlay core 1 a which is a solid thin rod body is bonded and fixed so that a part protrudes toward the tip side at the end portion on the tip side. The inlay core 1a is also manufactured from a fiber reinforced resin or the like. And this spigot core 1a is inserted into the base side of the former upper collar 2, and the former iron 1 and the upper upper collar 2 are connected. The same applies to other cases.

  Further, a reel sheet 5 for detachably mounting the reel, a grip 6 for gripping the main rod 1 and the like are attached to the peripheral surface of the main rod 1 as necessary. Furthermore, a plurality of fishing line guides 7 are mounted on the peripheral surface of each housing at intervals in the axial direction. The fishing line guide 7 is a member for guiding the fishing line from the reel mounted on the reel sheet. In particular, a top guide 8 is attached to the end of the tip of the tip 4.

(Production method)
Next, a method for manufacturing this fishing rod will be described.

  First, as shown to Fig.2 (a), the core material 100 which has the full length of the axial direction of the fishing rod with which the taper taper was given is prepared. In the core material 100, three portions X having different tapers are formed in the middle of the axial direction. The region X has a region where the diameter gradually increases from the distal end side of the small diameter toward the proximal side (for example, the taper of this region is about 2/1000), and the diameter in the axial direction continuous to this region There are areas that do not change or hardly change. This site | part X becomes a part cut | disconnected after baking. Therefore, the axial position of the part X is determined in consideration of the axial length of each target chassis (general basket 1 to head basket 4).

  After applying a release material or the like to the peripheral surface of the core material 100 as necessary, a reinforcing fiber such as carbon fiber further extends from the axial direction of the core material 100 in both positive and negative directions as necessary. One to several plies of a cross prepreg impregnated with a synthetic resin on a cross formed in a skewed manner is wound. Then, one main prepreg P <b> 1 impregnated with a synthetic resin after the reinforcing fibers are oriented in the axial direction of the core material 100 is wound around the entire axial direction of the core material 100. The main prepreg P1 is obtained by cutting a prepreg material into a substantially trapezoidal shape in which the winding width on the small diameter front end side of the core material 100 is short and the winding width on the large diameter rear end side of the core material 100 is long. It is a sheet. Although the number of windings of the main prepreg P1 varies depending on the axial length of the core material 100, for example, when the total length of the core material 100 is about 2400 to 2500 mm, 3 plies on the front end side of the core material 100, The winding width of the main prepreg P1 is set so that about 10 plies are wound on the end side.

  After the main prepreg P1 is wound, an auxiliary prepreg sheet (not shown) is further wound around the outer periphery of the main prepreg P1 as necessary in the region of the part X. As this auxiliary prepreg sheet, a known sheet such as one in which reinforcing fibers such as carbon fibers are aligned in the circumferential direction can be used. This auxiliary prepreg is for reinforcing the portion to be cut. Such a reinforcing prepreg sheet is wound at least one ply around the outer peripheral surface of the main prepreg P1. Furthermore, a tape such as polypropylene may be spirally wound around the outermost peripheral surface of each prepreg material without gaps. This is a molding tape for adjusting the shape of each prepreg.

  Various prepreg materials wound around the core material 100 are fired in the furnace. By this firing, the synthetic resin in the prepreg material is cured, and a single long cylindrical body is formed. After firing, the core material 100 is decentered and the molding tape is peeled off to obtain a single long cylindrical body. Here, as shown in FIG. 2B, markings M are applied to the three portions X in the axial direction. The circumferential positions of the three markings M are unified.

  Then, as shown in FIG.2 (c), the one cylindrical body obtained in three site | parts X is cut | disconnected, and it is set as four housings. In more detail, the portion to be cut in the portion X is a region where the diameter gradually increases from the distal end side of each small diameter toward the proximal side, and the diameter does not change or changes little in the axial direction continuous to this region. The criticality with the non-performing region is preferred. By cutting a single cylindrical body at such a critical point, the stamping core mounting process described later becomes easy.

  The marking M is divided by this cutting. Four casings formed by dividing into four parts are subjected to polishing and painting of the peripheral surface, and necessary parts are respectively attached. For example, the reel sheet 5 and the grip 6 are attached to the thickest casing that becomes the base rod 1.

  The plurality of fishing line guides 7 through which the fishing line is inserted need to have a uniform circumferential position. Therefore, before cutting a single cylindrical body as described above, the fishing line guide 7 may be fixed to the peripheral surface of the single cylindrical body in advance with a spool or the like. The fishing line guide 7 may be mounted in advance on the peripheral surface of one cylindrical body.

  Further, a predetermined stamping core is inserted into each of the end portions of the main rod 1 to the middle rod 3 and bonded and fixed.

  A fishing rod manufactured by such a method manufactures a tubular body that forms a whole fishing rod from a single main prepreg P1 by winding a main prepreg P1 having an axial length of the entire fishing rod in advance around the core member 100. The characteristics of the cylindrical body formed therefrom are uniform (continuous) in both the circumferential direction and the axial direction. Therefore, even if the obtained cylindrical body is divided into the original rod 1 to the tip rod 4 which are separate and independent rod bodies, if connected like the original one cylindrical body, the original main prepreg P1 is unified. A fishing rod with special characteristics. In particular, there are markings M at the ends connecting the individual casings. If the casings are connected with the markings M aligned in the circumferential direction, the characteristics in the circumferential direction can be easily unified. Furthermore, a manufacturing process is also simplified by collectively forming one continuous cylindrical body and then cutting it.

[Other Embodiments]
(A) As shown in FIG. 3, after forming one long cylindrical body, the cylindrical body may be cut at a predetermined portion X so as to have a cut surface inclined obliquely from the axial direction. Good. It is also possible to unify the characteristics in the circumferential direction easily by connecting the casings so that the oblique cut surfaces are aligned.
(B) In the above-described embodiment, a case in which the frames are formed by a technique called “joining and stamping” as a technique for connecting the bodies to each other is shown, but the connection technique is not limited to this. It is also possible to apply to other types of succession and swing. In addition, even when adopting the “seasoned seam”, it is not the end of the head side of the main shaft 1 to the middle shaft 3 that attaches the seal core, but conversely, the base of the upper head 2 to the head 4 It may be a side end.

1 is an overall view of a fishing rod adopting a first embodiment of the present invention. The figure which shows the manufacturing process of the fishing rod of FIG. The reference figure which showed the manufacturing process of the fishing rod which employ | adopted other embodiment.

Explanation of symbols

1 Genroku 2 Genroku Kami 3 Nakamata 4 Hote Maki P1 Main Prepreg M Marking

Claims (4)

A method for manufacturing a fishing rod constructed by connecting a plurality of rods,
A single fiber-reinforced resin sheet covering the entire axial direction of the core material in which the reinforcing fibers are oriented in the axial direction is wound around a core material having an axial length of a desired fishing rod with a tapered taper. Process,
Firing the wound fiber reinforced resin sheet;
Cutting the fired fiber reinforced resin sheet into a desired length to form a plurality of housings;
A step of providing the plurality of housings with a connecting portion for connecting the plurality of separated housings to each other;
A method for manufacturing a fishing rod, including:   A step of winding an auxiliary prepreg in which reinforcing fibers are oriented in the circumferential direction at least on the outer peripheral surface of the fiber reinforced resin sheet at a portion to be cut after the step of winding the fiber reinforced resin sheet. 2. A method for manufacturing a fishing rod according to 1.   3. The method according to claim 1, further comprising a step of applying an axially extending marking to a peripheral surface of a cut position of the fiber reinforced resin sheet after winding the fiber reinforced resin sheet.   The method according to claim 1, wherein the step of cutting the fired fiber reinforced resin sheet is a method of cutting the fiber reinforced resin sheet in a direction inclined with respect to an axial direction.

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