Classifications

• • A—HUMAN NECESSITIES
  • A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
  • A01K—ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
  • A01K87/00—Fishing rods
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
  • B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
  • B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
  • B29C70/28—Shaping operations therefor
  • B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
  • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
  • B29L2031/00—Other particular articles
  • B29L2031/70—Agricultural usage or equipment
  • B29L2031/7002—Agricultural usage or equipment for fishing

Definitions

• the present invention relates to a fishing rod, and more particularly to a method for manufacturing a fishing rod made of a fiber-reinforced resin in which a synthetic resin is impregnated into a reinforcing fiber such as carbon fiber or glass fiber.
• a technology of winding a fiber-reinforced resin material while partially laminating a fiber-reinforced resin material for manufacturing a rod body for example, see Japan: Japanese Patent Application Laid-Open No. 2002-209497, FIG. 2
• a technique of winding a fiber reinforced resin material having partially different elasticity in the axial direction for example, see Japan: JP-A-11-289925, FIG. 2.
• one of the fishing rods that Junto feels to have the “best rod condition” is a fishing rod made of natural materials such as natural bamboo.
• various ideas have been developed to improve the “rod condition” of fishing rods manufactured from fiber-reinforced resin materials.
• fishing rods made of natural materials that anglers want are still in use. “Rod condition” has not yet been achieved.
• various parameters such as the thickness of the rod body, the elastic modulus of the material, the orientation method of the fiber, etc. are set and changed to try to set a good condition of the rod. They have not yet been able to provide the fishing rods they want.
• An object of the present invention is to provide a method for industrially manufacturing a fishing rod capable of producing the same good condition as a fishing rod manufactured from a natural material. Also, any pole tone An object of the present invention is to provide a method for industrially manufacturing a fishing rod having a child.
• the present inventors have conducted extensive research and found that one of the important factors that Junto feels good about "the condition of the rod" is the resonance vibration of the fishing rod.
• the present invention is based on such findings, and is for manufacturing a fishing rod after presetting first to third resonance frequencies of the fishing rod.
• the fishing rod set in this way causes first to third resonance expansion at a constant frequency.
• the “first to third resonance frequencies” are the frequency of the fishing rod measured by the following method.
• the fishing rod is held horizontally in a range of 80mm from the base end of the fishing rod with the holding body and fixed as a fixed end, and the tip end side as a free end. Vibration is applied to the fishing rod from the shaker through this holding body (frequency of the fishing rod).
• the acceleration in this shaker is detected by an acceleration sensor and is set as the input acceleration (A).
• the acceleration at the position of I80 nmi from the base end of the fishing rod is detected by the acceleration sensor and set as the output acceleration (B) (see Fig. 4).
• the relationship between the two varies depending on various factors such as the total length of the fishing rod, the material of the rod body constituting the fishing rod, the wall thickness, the taper, and the weight distribution.
• the frequency of the fishing rod at the first to third resonance vibrations (resonance frequency) ) Calculate by simulating the weight distribution in each rod body such that becomes a specific frequency. Then, the fishing rod is designed to achieve the planned weight distribution based on the material arrangement and the specific gravity of the material.
• One of the specific methods according to the present invention is in the manufacture of a fishing rod formed by connecting a plurality of rods, and a first method of connecting a plurality of rods into one fishing rod. Determining the resonance frequency of the rod and calculating the required weight balance on the rod, and winding the pre-preda material on the core material and adjusting the weight distribution in the axial direction of the pre-preda material to calculate the weight balance And firing the pre-predator material to form each rod body which is a cylindrical body constituting the fishing rod.
• Another method is a method of manufacturing a fishing rod by connecting a plurality of rods, and determining a secondary resonance frequency of the fishing rod when connecting a plurality of rods into one fishing rod. Calculating the required weight balance on the rod body, winding the prepreg material on the core material, adjusting the weight distribution in the axial direction of the prepreg material, achieving the calculated weight balance, and firing the prepreg material Forming each rod body which is a cylindrical body constituting the fishing rod.
• Still another method is a method of manufacturing a fishing rod by connecting a plurality of rods, and determining a third resonance frequency of the fishing rod when a plurality of rods is connected to form one fishing rod. Calculating the required weight balance on the rod body, winding the prepreg material around the core, adjusting the weight distribution in the axial direction of the prepreg material, achieving the calculated weight balance, and firing the prepred material And forming each rod body which is a cylindrical body constituting the fishing rod.
• the pre-predator material is wound around the core material, and the high-density pre-predder is partially wound around the peripheral surface of the prepreg material, and the weight distribution in the axial direction is determined.
• FIG. 1 is an overall view of a fishing rod employing one embodiment of the present invention.
• FIG. 2 is a sectional view of the center rod 2 of FIG.
• FIG. 3 is a view showing a manufacturing process of the rod body of FIG.
• FIG. 4 is a diagram showing a state of measuring a resonance frequency of a fishing rod according to the present invention.
• ⁇ FIG. 5 A reference diagram in a finite element model.
• Fig. 6 Reference diagram in the link model. BEST MODE FOR CARRYING OUT THE INVENTION
• a fishing rod employing one embodiment of the present invention will be described.
• This fishing rod is a spatula used for spatula fishing. As shown in Fig. 1, it is composed of three pole bodies, a main pole 1, a middle pole 2, and a head pole 3, in order from the hand side. These rods are formed by firing a prepreg material in which a synthetic resin is impregnated into a reinforcing fiber such as carbon fiber or glass fiber. As will be described in detail later, a high-density pre-preda is also partially laminated. Each of these rods is painted so that its appearance resembles that of natural bamboo. For example, bamboo nodes and branches may be painted three-dimensionally (see Fig. 2). The respective rod bodies are sequentially connected in a so-called side-by-side manner.
• the rod-side end of the middle rod 2 is partially inserted into the head-side end of the original rod 1 and connected.
• the method of connecting the rod bodies is not limited to the joint type, and it is naturally possible to apply a well-known method (for example, a swing type or a spigot type).
• a grip 4 formed by winding a cord body impregnated with urethane resin or the like is provided at the end of the original rod 1 at the end of the original rod. 5 is installed.
• the total length of the spatula when these three rods are connected in sequence is 9 shaku (2700mm). ⁇
• the structure of the rod body constituting the spatula rod will be described with the middle rod 2 as an example.
• the inner rod 2 is composed of a main layer 11 and an outer peripheral layer of the main layer 11 in a certain range in the axial direction. It has a weight layer 12 that is laminated, and a paint layer 13 that is laminated on the peripheral surface of the main layer 11 and the weight layer 12.
• the main layer 11 is a layer formed by laminating a prepreg material.
• the same pre-preda material may be laminated, or different pre-prede materials may be laminated.
• a pre-prepared material impregnated with epoxy resin so that the carbon fiber is oriented in the circumferential direction or at a certain angle from the circumferential direction is processed into a tape shape, or the carbon fiber is processed in the axial direction.
• An example is a pre-preda material which is oriented and impregnated with an epoxy resin and processed into a sheet shape.
• the weight layer 12 is made of a high specific gravity pre-predator material having a large specific gravity.
• the high-density pre-predator material is, for example, a glass scream impregnated with an epoxy resin and further mixed with a metal powder such as tungsten.
• the high-density pre-predator has a thickness of about 500 to 600 g Zm 2 and a thickness of about 0.100 to 0.150 mm.
• the high-density pre-predator material is laminated on the main layer 11 at a predetermined axial position obtained by calculation as described later.
• the paint layer 13 is formed by applying a synthetic resin coating material such as an epoxy resin or a urethane resin.
• a synthetic resin coating material such as an epoxy resin or a urethane resin.
• the step between the main layer 11 and the weight layer 12 is eliminated by the paint layer 13.
• the pre-preda material is partially wound and fired, or Thickly apply fat and cut it into a predetermined shape to form bamboo nodes.
• the other rods also have the same structure, although their diameters and the like are different, and the description is omitted.
• the resonance frequency for example, a spatula rod having several different resonance frequencies is manufactured, and a sensitivity test is conducted to have the angler use it practically, and a value determined to be excellent in the condition of the rod is adopted.
• the target value may be a spatula made of natural bamboo, which many fishermen have good rod condition.
• As the relationship between the target fishing rod total length and the resonance frequency for example, a case where the total length is 2700 ⁇ ⁇ and the secondary resonance frequency is set to 5.45 Hz will be described.
• a fishing rod is a cantilever composed of N one-dimensional beam elements having two degrees of freedom in the translation and rotation directions at the node.
• Model with an elastic beam Assume that each beam element has a uniform cross section within the element. Under the boundary conditions where one end is a fixed end and the other end is a free end, the mode shape corresponding to the resonance frequency is calculated.
• the necessary pre-preda material P1 is wound around the mandrel 100 provided in accordance with the diameter or taper change of each rod body (as described above, A tape-shaped material or a sheet-shaped material can be wound), and a high-density pre-preda material P2 is wound around the calculated predetermined axial direction range (FIG. 3 (b)).
• Several ply windings of the high-density prepredder material P2 may be used to produce sufficient weight.
• Figure 3 (b) Although only one high-density pre-predator material P2 is wound on the pre-predator material P1, two or more high-density pre-predder materials P2 may be wound at intervals in the axial direction.
• an epoxy resin is applied to the peripheral surface to prepare rod materials corresponding to the original rod 1 to the head rod 3, and these are fired in a furnace. After firing, the peripheral surface is polished, and both ends are cut to a predetermined axial length to manufacture each rod body.
• the fishing rod is set and adjusted in the second resonance vibration
• the fishing rod may be set and adjusted in the first and third resonance vibrations.
• the primary and tertiary resonance frequencies of the target fishing rod are measured in the same manner as in the above method.
• the axial range in which the specific gravity pre-preda material should be laminated is calculated for each rod body.
• a spatula is described, but the type of fishing rod is not limited to this.
• the present invention even if it is a type of fishing rod other than a spatula rod, since the condition of the rod is an important factor in a fishing rod, it is naturally possible to apply the present invention to other types of fishing rods. . For example, it is extremely effective to apply the present invention to a fishing rod for fly, a fishing rod for lure, and the like.
• the fishing rod which can produce the favorable "rod condition” like the fishing rod manufactured from a natural material can be manufactured industrially.
• a fishing rod capable of producing a desired “rod condition” can be arbitrarily industrially manufactured.
• the purchaser can purchase a fishing rod that achieves the desired "pole condition". Will be able to. For example, a purchaser may purchase a fishing rod that has a different “rod condition” than a previously owned fishing rod, or may have the same “rod condition” as a previously owned fishing rod that has been damaged. Purchasing a fishing rod becomes easier.

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• Life Sciences & Earth Sciences (AREA)
• Environmental Sciences (AREA)
• Marine Sciences & Fisheries (AREA)
• Animal Husbandry (AREA)
• Biodiversity & Conservation Biology (AREA)
• Chemical & Material Sciences (AREA)
• Engineering & Computer Science (AREA)
• Composite Materials (AREA)
• Mechanical Engineering (AREA)
• Fishing Rods (AREA)

Priority Applications (9)

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Publications (1)

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Citations (3)

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• 2003
  • 2003-01-24 AU AU2003303781A patent/AU2003303781A1/en not_active Abandoned
  • 2003-01-24 WO PCT/JP2003/000688 patent/WO2004064510A1/ja not_active Ceased
• 2004
  • 2004-01-19 CN CNB2004800026364A patent/CN100407911C/zh not_active Expired - Fee Related
  • 2004-01-19 WO PCT/JP2004/000373 patent/WO2004064512A1/ja not_active Ceased
  • 2004-01-19 EP EP04703261A patent/EP1588612A4/en not_active Withdrawn
  • 2004-01-19 JP JP2005508071A patent/JP4385023B2/ja not_active Expired - Fee Related
  • 2004-01-19 KR KR1020057013057A patent/KR100994413B1/ko not_active Expired - Fee Related
  • 2004-01-19 AU AU2004206163A patent/AU2004206163A1/en not_active Abandoned
  • 2004-01-20 TW TW093101663A patent/TW200415987A/zh not_active IP Right Cessation

Patent Citations (3)

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