Fishing guide frame and method for manufacturing fishing guide frame

Abstract

To allow strength of a reinforcing rib itself to be improved, and allow a whole fishing guide frame to be efficiently strengthened.SOLUTION: A fishing guide frame is fixed to an outer peripheral surface of a fishing rod, holds a guide ring into which a fishing line is inserted, and comprises a frame body 10 comprising a ring holding part 11 holding the guide ring on an inner peripheral surface, and a reinforcing rib 20 protruding from the frame body 10 and integrally formed. The frame body 10 and the reinforcing part 20 are formed of a fiber-reinforced resin 14 containing reinforcing fibers whose directions and lengths are irregular.SELECTED DRAWING: Figure 3

Description

[Technical field]

[0001] The present invention relates to a fishing guide frame and a manufacturing method for the fishing guide frame. [Background technology]

[0002] Conventionally, as a fishing guide frame that is fixed to the outer peripheral surface of a fishing rod and holds a guide ring through which a fishing line is passed, the frame body has been molded using a prepreg sheet in which reinforcing fibers are arranged in a predetermined direction (see, for example, Patent Documents 1 and 2). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2020-137454 A [Patent Document 2] JP 2020-80808 A Summary of the Invention [Problem to be solved by the invention]

[0004] However, in the fishing guide frames shown in the above-mentioned Patent Documents 1 and 2, when a rib is integrated with the frame body and manufactured as a reinforcing structure, the reinforcing fibers aligned in a predetermined direction may not flow sufficiently into the rib. Therefore, there is a problem that the reinforcing fibers contained in the resin in the rib are insufficient, and the desired strength of the rib cannot be secured.

[0005] The present invention has been made in consideration of the above circumstances, and its purpose is to provide a fishing guide frame and a manufacturing method for a fishing guide frame that can improve the strength of the reinforcing rib itself and efficiently strengthen the entire fishing guide frame. [Means for solving the problem]

[0006] (1) The fishing guide frame of the present invention is a fishing guide frame that is fixed to the outer peripheral surface of a fishing rod and holds a guide ring through which a fishing line is passed, and is characterized in that it comprises a frame main body having a ring holding portion that holds the guide ring on its inner peripheral surface, and a reinforcing rib that protrudes from the frame main body and is molded integrally therewith, and that the frame main body and the reinforcing rib are molded from a fiber-reinforced resin that contains reinforcing fibers with irregular orientations.

[0007] According to the fishing guide frame of the present invention, when the reinforcing ribs are provided protruding from the frame body, by using a fiber-reinforced resin containing reinforcing fibers with irregular orientations, the reinforcing fibers arranged with irregular orientations during manufacturing tend to flow into the reinforcing ribs. Therefore, the filling rate of the reinforcing fibers in the reinforcing ribs can be increased, and the strength of the reinforcing ribs themselves can be improved. Therefore, the entire fishing guide frame can be efficiently reinforced.

[0008] (2) The fiber-reinforced resin preferably contains reinforcing fibers having irregular lengths.

[0009] In this case, when reinforcing ribs are provided protruding from the frame body, by using a fiber-reinforced resin containing reinforcing fibers with irregular lengths as well as directions, the reinforcing fibers arranged irregularly in directions and lengths during manufacturing can more reliably flow into the reinforcing rib portion. This makes it possible to further increase the filling rate of the reinforcing fibers in the reinforcing rib, thereby improving the strength of the reinforcing rib itself.

[0010] (3) The reinforcing rib may be provided over the entire circumference of the ring holding portion.

[0011] In this case, the ring holder of the frame body is reinforced by the reinforcing rib, so that the force with which the ring holder holds the guide ring can be increased, and the ring holder can be prevented from being damaged by the load of the fishing line through the guide ring that guides the fishing line.

[0012] (4) The frame body may have a support leg portion extending in a direction away from an outer peripheral surface of the fishing rod and supporting the ring holding portion, and the reinforcing rib may extend in a longitudinal direction of the support leg portion.

[0013] With this configuration, the support legs of the frame body are reinforced by reinforcing ribs extending in the longitudinal direction, which provides reinforcement against the force received from the guide ring and increases the supporting force of the ring holding portion.

[0014] (5) The fiber-reinforced resin may be a prepreg sheet formed by laminating a plurality of prepreg sheets, and the frame body and the reinforcing ribs may be formed by heating and pressurizing the prepreg sheets.

[0015] In this case, by providing multiple layers of prepreg sheets, the reinforcing rib portion can be sufficiently filled with reinforcing fibers during manufacturing, and the connection portion between the frame body and the reinforcing rib can also be sufficiently reinforced.

[0016] (6) The manufacturing method of the fishing guide frame according to the present invention is a manufacturing method of the fishing guide frame described in any one of (1) to (5) above, characterized by comprising the steps of: setting a first mold having a recess that forms the convex shape of the reinforcing rib, and a second mold opposite the first mold; placing a prepreg sheet having multiple laminated layers of the fiber reinforced resin between the first mold and the second mold; heating the prepreg sheet, and bringing the first mold and the second mold close to each other to press the prepreg sheet against the first mold to apply pressure, thereby causing the prepreg sheet to flow inside the recess.

[0017] According to the manufacturing method of the fishing guide frame of the present invention, the manufactured fishing guide frame has the same effect as that of claim 1. That is, during manufacturing, at least the reinforcing fibers having irregular directions in the prepreg sheet are filled thoroughly into the entire recess of the first mold, so that the reinforcing rib has sufficient strength. Effect of the Invention

[0018] According to the fishing guide frame and the manufacturing method of the fishing guide frame of the present invention, the strength of the reinforcing rib itself can be improved, and the entire fishing guide frame can be efficiently strengthened. [Brief description of the drawings]

[0019] [Figure 1] 1 is a front view of a fishing guide frame according to an embodiment of the present invention. [Diagram 2] 1 is a perspective view of a fishing guide frame seen diagonally from the front. [Diagram 3] 1 is a perspective view of a fishing guide frame seen from diagonally rearward. [Figure 4] 2 is a cross-sectional view taken along line AA shown in FIG. 1, showing a cross-sectional view of a ring holding portion. [Diagram 5] 4 is a cross-sectional view showing the state of a ring holding portion of the fishing guide frame during manufacturing. FIG. [Figure 6] 1A to 1C are diagrams showing a manufacturing process of a fishing guide frame. [Figure 7] 7 is a diagram showing the manufacturing process of the fishing guide frame following FIG. 6. [Figure 8] 8 is a diagram showing the manufacturing process of the fishing guide frame following FIG. 7. [Figure 9] 2 is a cross-sectional view taken along line BB shown in FIG. 1, showing a vertical cross-sectional view of the fishing guide frame. [Figure 10] 11A to 11C are diagrams showing the manufacturing process for the curved portion of the fishing guide frame. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] Hereinafter, the fishing guide frame and the manufacturing method thereof according to the present invention will be described with reference to the drawings. In each drawing, the scale of each component may be appropriately changed as necessary to make each component visible.

[0021] As shown in Figures 1 and 2, the fishing guide frame 1 of this embodiment is fixed to the outer peripheral surface of a fishing rod (not shown) and is configured to hold a guide ring 3 (shown by a two-dot chain line in Figure 1) through which a fishing line is inserted.

[0022] As shown in Fig. 3, the fishing guide frame 1 includes a frame body 10 and a reinforcing rib 20 that protrudes from and is integrally molded with the frame body 10. As shown in Fig. 1, the frame body 10 includes a ring holder 11 that holds the guide ring 3 on its inner peripheral surface, and support legs 12 that support the ring holder 11 by extending in a direction away from the outer peripheral surface of the fishing rod.

[0023] 1 is a front view of the fishing rod tip viewed from the butt of the fishing guide frame 1, with the longitudinal direction of the support leg 12 (hereinafter referred to as the axial direction X) coinciding with the axial direction of the fishing rod when the fishing guide frame 1 is fixed to the fishing rod. In the fishing guide frame 1, the direction facing the butt of the fishing rod is called the front side or forward, and the direction facing from the butt of the fishing rod to the tip of the fishing rod is called the rear side or rear.

[0024] A plurality of ring holders 11 are arranged at predetermined intervals in the rod axis direction on the outer circumferential surface of the fishing rod. The ring holder 11 holds a guide ring 3, which guides the fishing line, on its inner circumferential surface at a position away from the outer circumferential surface of the fishing rod. The ring holder 11 is formed in an annular shape and has a circular holding hole 11a that holds the guide ring 3. The ring holder 11 rises forward from one end of the support leg 12 via a curved portion W (a second curved portion Wb, described later) relative to the outer circumferential surface of the fishing rod.

[0025] The guide ring 3, which is held coaxially in the holding hole 11a, is formed in an annular shape, and its inner circumferential guide surface is made of a material that provides low sliding resistance to the fishing line, such as titanium, aluminum, SUS, ceramics, etc. The guide ring 3 is integrally formed with a fiber reinforced resin 14, which will be described later, that forms the frame body 10.

[0026] The fishing guide frame 1 is fixed to the outer circumferential surface of the fishing rod with the ring holder 11 facing the rod tip relative to the support leg 12. At this time, the support leg 12 extends in one direction (axial length direction X), and the axial length direction X coincides with the rod axis direction of the fishing rod.

[0027] The contact surface 12a (see Figs. 2 and 3) on the back side of the support leg 12 is placed on the outer circumferential surface of the fishing rod and is fixed thereto by a line fastener, adhesive, etc. The support leg 12 has approximately the same width dimension along the axial direction X.

[0028] 3 and 4, the reinforcing rib 20 is provided over the entire surface of the rear surface 10b of the frame main body 10. In this embodiment, the reinforcing rib 20 is provided only on the rear surface 10b of the frame main body 10, but is not limited to the rear surface 10b, and may be provided on the front surface 10a (see FIG. 1) of the frame main body 10, or may be provided on both the front surface 10a and the rear surface 10b.

[0029] 3, the reinforcing rib 20 has dimensions including an outer peripheral rib 21 provided along the outer peripheral edges of the ring holding portion 11 and the support leg 12, an inner peripheral rib 22 provided along the inner peripheral edge where the holding hole 11a of the ring holding portion 11 is formed, and an intermediate rib 23 provided between a pair of left and right outer peripheral ribs 21 arranged on the support leg 12. The intermediate rib 23 extends to the ring holding portion 11 side and is connected to the inner peripheral rib 22. The reinforcing rib 20 is related to the overall size of the frame main body 10, but is formed into a rectangular cross section with a height of about 0.1 to 0.5 mm and a width of about 0.3 to 0.7 mm, more specifically, a height of 0.3 mm and a width of 0.5 mm.

[0030] As shown in FIG. 5, the frame body 10 and the reinforcing rib 20 are formed from a fiber-reinforced resin 14 containing reinforcing fibers 13 having irregular directions and lengths. The fiber-reinforced resin 14 is a sheet-like prepreg sheet 15 (see FIGS. 6 to 8) in which a plurality of layers are laminated. The reinforcing fibers 13 are carbon fibers, glass fibers, or the like. As described above, the reinforcing fibers 13 of this embodiment do not have a constant fiber direction or length, but have irregular fiber orientations and lengths. The fiber-reinforced resin 14 is configured by impregnating the reinforcing resin 13 with a thermosetting resin (e.g., epoxy resin) or a thermoplastic resin (e.g., nylon) as a matrix resin. The frame body 10 and the reinforcing rib 20 are formed by heating and pressurizing the prepreg sheet 15 by press processing.

[0031] The curved portion W formed in the frame body 10 has a first curved portion Wa formed on the outer periphery of the ring holding portion 11 and a second curved portion Wb formed at the boundary between the ring holding portion 11 and the support leg portion 12. The first curved portion Wa is formed by a curved surface that follows the ring shape of the ring holding portion 11. The first curved portion Wa and the second curved portion Wb are also formed from a fiber reinforced resin 14 having reinforcing fibers 13 with irregular directions and lengths. Here, in this embodiment, the first curved portion Wa and the second curved portion Wb are set to a curved surface having one radius of curvature.

[0032] Next, a method for manufacturing the above-mentioned fishing guide frame will be specifically described with reference to the drawings. As shown in Figs. 6 to 8, the fishing guide frame 1 of this embodiment is formed of a fiber-reinforced resin 14, in which the frame body 10 and the reinforcing ribs 20 are made of prepreg sheets 15 having reinforcing fibers 13 with irregular directions and lengths, as described above. In preparation for manufacture, the prepreg sheets 15 are cut into a predetermined shape and stacked to form multiple layers. The number of layers of the prepreg sheets 15 to be stacked can be set as appropriate. The number of layers of the prepreg sheets 15 is determined according to conditions such as the load acting on the fishing guide frame 1 during use and the bending characteristics of the fishing rod. The prepreg sheet 15 used here is a general reinforced plastic molding material in which reinforcing fibers 13 such as carbon fibers or glass fibers are evenly impregnated with a thermosetting resin such as epoxy and then heated or dried to a semi-hardened state.

[0033] As shown in FIG. 6, first, a first mold 41 having a recess 41a for forming the convex shape of the reinforcing rib 20, and a second mold 42 that can be brought close to the first mold 41 are set. The mold 4 used has, for example, a first mold 41 and a second mold 42 divided into upper and lower halves. A prepreg sheet 15, which is a laminate of a plurality of sheets, is set between the first mold 41 and the second mold 42. A mold release agent is applied to the first mold 41 and the second mold 42. The direction in which the first mold 41 and the second mold 42 are divided is not limited to the vertical direction, and they may be divided in the left-right direction or in an oblique direction according to the shape of the fishing guide frame 1.

[0034] 7, a plurality of laminated prepreg sheets 15 are placed on the mold surface of a first mold 41. At this time, the guide ring 3 shown in FIG.

[0035] After the prepreg sheet 15 is set in the first mold 41, the prepreg sheet 15 is heated and the second mold 42 is pressed against the prepreg sheet 15 to perform pressure molding. As a result, the prepreg sheet 15 is compressed by receiving a compressive force in the thickness direction (pressure direction), and the prepreg sheet 15 flows into the inside of the recess 41a of the first mold 41. At this time, as shown in FIG. 5, the direction and length of the reinforcing fibers 13 contained in the flowing fiber reinforced resin 14 are not constant but irregular, so that the entire recess 41a is filled. In addition, the guide holding part 11 and the guide ring 3 are heat fused or heat bonded by heating and pressurization.

[0036] 10, a concave curved portion 41b is formed at the position where the first curved portion Wa and the second curved portion Wb of the frame body 10 are formed in the first mold 41. A convex curved portion 42a is formed in the second mold 42 at a position opposite to the concave curved portion 41b of the first mold 41. Then, after a plurality of laminated prepreg sheets 15 are set on the mold surface of the first mold 41, the prepreg sheets 15 are heated and the second mold 42 is pressed against the prepreg sheets 15 to perform pressure molding. As a result, the prepreg sheets 15 are compressed by receiving a compressive force in the thickness direction (pressure direction), and the prepreg sheets 15 flow into the concave curved portion 41b of the first mold 41. At this time, as shown in FIG. 5, the direction and length of the reinforcing fibers 13 contained in the flowing fiber reinforced resin 14 are not constant but irregular, so that the entire concave curved portion 41a is filled. Furthermore, the reinforcing fibers 13 are also filled in the convex curved portion 42a of the second mold 42, and the curved portion W is molded in a state in which the reinforcing fibers 13 are uniformly arranged over the entire curved portion W.

[0037] Thereafter, the first mold 41 and the second mold 42 are demolded and the molded product is taken out from the molds, thereby manufacturing the fishing guide frame 1 as shown in Figs. 1 to 3.

[0038] Next, the operation of the fishing guide frame thus constructed and the method for manufacturing the fishing guide frame will be described in detail with reference to the drawings.

[0039] In this embodiment, as shown in Fig. 5, when the reinforcing rib 20 is provided protruding from the frame body 10, the fiber reinforced resin 14 containing the reinforcing fibers 13 of irregular directions and lengths is used, so that the reinforcing fibers 13 flow into and fill the reinforcing rib 20 during manufacturing. Therefore, the filling rate of the reinforcing fibers 13 in the reinforcing rib 20 can be increased, and the strength of the reinforcing rib 20 itself can be improved. Therefore, the entire fishing guide frame 1 can be efficiently reinforced.

[0040] In this embodiment, as shown in Fig. 3, the ring holding part 11 of the frame body 10 is reinforced by the reinforcing ribs 20, so that the holding force of the guide ring 3 (see Fig. 1) by the ring holding part 11 can be increased. It is possible to prevent the ring holding part 11 from being damaged by the load of the fishing line via the guide ring 3 that guides the fishing line.

[0041] In addition, in this embodiment, the support legs 12 of the frame body 10 are reinforced by reinforcing ribs 20 extending in the tension axis direction X, which provide reinforcement against the force received from the guide ring 3 and increase the supporting force of the ring holding portion 11.

[0042] Furthermore, in this embodiment, as shown in Fig. 6 to Fig. 8, the fiber reinforced resin 14 is a prepreg sheet 15 having multiple layers, and the frame body 10 and the reinforcing ribs 20 are formed by heating and pressurizing the prepreg sheet 15. By providing multiple layers of prepreg sheets 15 in this manner, the reinforcing fibers 13 can be sufficiently filled in the reinforcing ribs 20 during manufacturing. In addition, the connection portion between the frame body 10 and the reinforcing ribs 20 can also be sufficiently reinforced.

[0043] In the fishing guide frame and the manufacturing method of the fishing guide frame according to this embodiment configured as described above, the strength of the reinforcing rib 20 itself can be improved, and the entire fishing guide frame 1 can be efficiently strengthened.

[0044] The above describes the embodiments of the fishing guide frame and the manufacturing method of the fishing guide frame according to the present invention, but these embodiments are presented as examples and are not intended to limit the scope of the invention. The embodiments can be implemented in various other forms, and various omissions, substitutions, and modifications can be made without departing from the gist of the invention. The embodiments and their modifications include, for example, those that can be easily imagined by a person skilled in the art, those that are substantially the same, those that are within the scope of equivalents, and the like.

[0045] For example, in this embodiment, the reinforcing fibers 13 contained in the fiber reinforced resin 14 have irregular fiber directions and lengths, but the fibers may have a fixed length. In other words, the fiber reinforced resin may be one that contains reinforcing fibers at least having irregular directions.

[0046] In the above embodiment, the outer peripheral rib 21, the inner peripheral rib 22, and the intermediate rib 23 are provided as the reinforcing ribs 20, but there is no limitation to a specific configuration such as a cross-sectional shape, extending direction, and arrangement of the reinforcing ribs 20. For example, the reinforcing ribs 20 may be provided only on the ring holding portion 11 or only on the support leg portion 12. [Explanation of symbols]

[0047] 1 Fishing guide frame 3 Guide Ring 10 Frame body 10a front 10b Rear 11 Ring holder 11a retaining hole 12 Support legs 20 Reinforcing rib 41 First Mold 41a Recess 41b Concave bend 42 2nd Mold 42a Convex curved part X-axis longitudinal direction W curved section Wa First curved section Wb Second curved section

Claims

1. A fishing guide frame that is fixed to an outer circumferential surface of a fishing rod and holds a guide ring through which a fishing line is inserted, a frame body having a ring holding portion that holds the guide ring on an inner peripheral surface thereof; a reinforcing rib that protrudes from the frame body and is integrally formed with the frame body and is provided around the entire periphery of the ring holding portion, The fishing guide frame, in which the frame body and the reinforcing ribs are molded from a fiber-reinforced resin containing reinforcing fibers having irregular directions.

2. 2. The fishing guide frame according to claim 1, wherein the fiber reinforced resin contains reinforcement fibers having irregular lengths.

3. The frame body has a support leg portion that extends in a direction away from the outer circumferential surface of the fishing rod and supports the ring holding portion, 3. The fishing guide frame according to claim 1, wherein the reinforcing rib extends in a longitudinal direction of the support leg.

4. The fiber reinforced resin is a prepreg sheet laminated in plurality, 4. The fishing guide frame according to claim 1, wherein the frame body and the reinforcing ribs are formed by applying heat and pressure to the prepreg sheet.

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