JP2011205998A - Fishing line guide and method for producing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fishing line guide which is lightened, is excellent in bending characteristics, and can stably be held on a spinning rod to stably guide a fishing line, and to provide a method for producing the same.SOLUTION: The fishing guide 1 having a frame 3 comprising a fiber-reinforced resin formed from a fiber-reinforced prepreg prepared by impregnating reinforcing fibers with a synthetic resin is characterized in that the frame 3 has front side and back side fixing portions 5a, 5b to be mounted and fixed to a spinning rod, a ring-holding portion 7 to which a guide ring 6 for passing through a spinning line is attached, and front side and back side support leg portions 8a, 8b placed between the ring-holding portion 7 and the fixing portions 5a, 5b.

Description

  The present invention relates to a fishing line guide that is mounted on a fishing rod and guides a fishing line, and more particularly to a fishing line guide that has a feature in a frame portion that holds a guide ring through which the fishing line is inserted.

  2. Description of the Related Art Conventionally, the above-described fishing line guide includes a frame that is attached to the outer peripheral surface of a fishing rod and a guide ring that is fixed to the frame and into which a fishing line is actually inserted. For example, as described in Patent Document 1, the frame is generally formed integrally by pressing a metal plate material such as stainless steel or titanium, and the frame includes a fishing line. A ring holding portion for holding the guide ring through which the rod is inserted and a fixing portion for mounting on the outer surface of the fishing rod are integrally formed.

JP 2006-340661 A

In the above-described known technology, since the frame is made of a metal material, the weight is heavy and the performance such as flexibility is poor, which is a bottleneck in improving the performance of the fishing rod. For example, in a fishing rod that is required to be lighter, if a large number of fishing line guides as described above are attached along the axial length direction, desired performance cannot be exhibited.
Further, the fishing line guide needs to be stably held by the fishing rod and stably guide the fishing line.

  The present invention has been made by paying attention to the above-described problems, and it is possible to reduce the weight, to have excellent deflection characteristics, and to a fishing line guide that can be stably held by a fishing rod and can guide the fishing line stably. An object is to provide a manufacturing method.

  In order to achieve the above object, the present invention provides a fishing line guide having a frame made of a fiber reinforced resin formed by a fiber reinforced prepreg in which a reinforced fiber is impregnated with a synthetic resin, and the frame is attached and fixed to a fishing rod. And a ring holding portion to which a guide ring through which a fishing line is inserted is attached, and the fixing portions are provided on the front side and the rear side of the frame, respectively.

  Since the frame portion of the fishing line guide having the above-described structure is made of fiber reinforced resin, the fishing rod can be reduced in weight and improved in flexibility. It becomes easy to exhibit the characteristics. Further, since the fixing portions are provided on both the front side and the rear side of the frame, the fishing line can be stably guided by being stably held by the fishing rod.

  In order to achieve the above-described object, a manufacturing method according to the present invention includes a ring holding portion to which a guide ring is attached, a front fixing portion and a rear portion that are respectively provided on the front side and the rear side and are attached to a fishing rod. A method of manufacturing a fishing line guide having a frame provided with a side fixing portion, wherein the ring holding portion, the front side fixing portion, and the rear side fixing portion are each formed with a bent portion. As described above, a bending placement step of placing a fiber reinforced prepreg impregnated with a synthetic resin in a reinforced fiber in a bent state and placing the fiber reinforced prepreg in a bent state, and heating and curing the fiber reinforced prepreg bent and placed on the die to form a plate-like body And a frame forming step for forming the frame from the formed plate-like body.

  As described above, the frame of the fishing line guide according to the present invention is constituted by the fiber reinforced prepreg. Since the bent portions for forming the ring holding portion, the front side fixing portion, and the rear side fixing portion are first placed in the mold with the fiber reinforced prepreg bent, at this stage, The basic shape is retained. Since the fiber-reinforced prepreg retained in a predetermined shape is then heat-cured, it is possible to effectively prevent the occurrence of internal residual stress particularly in the bent portion, while reducing the weight of the entire frame while maintaining the strength. Can be improved and stabilized. And a frame part is formed from the plate-shaped object in which the bending part was formed in that way, and a fishing line guide is manufactured by finally fixing a guide ring.

  According to the present invention, it is possible to obtain a fishing line guide that can be reduced in weight, has excellent deflection characteristics, can be stably held by a fishing rod, and can stably guide a fishing line, and a manufacturing method thereof.

The perspective view which shows the example of 1 structure of the fishing line guide which concerns on this invention. The longitudinal section showing the example of 1 composition of the fishing line guide concerning the present invention. The figure which looked at FIG. 1 from the arrow A direction which shows the state which mounted | worn the fishing line guide to the fishing rod (rod tube). (A) is a plan view of a laminated prepreg sheet disposed on a mold, (b) is a cross section showing a configuration example of a mold for forming a frame constituting a fishing line guide (a state in which a laminated prepreg sheet is sandwiched) Figure. The perspective view which shows the state which cuts out a flame | frame from the plate-shaped object shape | molded with the metal mold | die of FIG. Sectional drawing which shows the laminated structure of the prepreg in a frame part. (A) is a plan view of a laminated prepreg sheet disposed on a mold, (b) is a structural example of a mold according to a modification for forming a frame constituting a fishing line guide (a state in which a laminated prepreg sheet is sandwiched) FIG. The perspective view which shows the state which cuts out a frame from the plate-shaped object shape | molded with the metal mold | die of FIG. The longitudinal cross-sectional view of the fishing line guide which concerns on the modification shape | molded with the metal mold | die of FIG.

Hereinafter, embodiments of a fishing line guide and a method for manufacturing the same according to the present invention will be described with reference to the drawings.
Initially, with reference to FIGS. 1-3, the example of 1 structure of the fishing line guide which concerns on this invention is demonstrated. In these drawings, FIG. 1 is a perspective view of a fishing line guide, FIG. 2 is a longitudinal sectional view of the fishing line guide, and FIG. 3 is a view showing a state in which the fishing line guide is attached to a fishing rod. It is the figure which looked at 1 from the arrow A direction. The arrow A direction in FIG. 1 coincides with the axial length direction of the fishing rod when the fishing line guide is attached to the fishing rod, the front side fixing portion is the tip side, and the rear side fixing portion is the main rod side. It is attached as follows. Hereinafter, the front side (front side) means the tip side, and the rear side (rear side) means the base end side (margin side).

  The fishing line guide 1 includes a frame 3 formed of a laminated material having a plurality of fiber reinforced resin layers in which fiber reinforced prepregs (hereinafter referred to as prepregs) in which reinforced fibers are impregnated with a synthetic resin are laminated in the front-rear direction ( The configuration of the prepreg, the lamination mode, and the detailed manufacturing method of the frame will be described later).

  The frame 3 includes a front side fixing portion 5a and a rear side fixing portion 5b attached to the outer surface of a fishing rod (rod tube) 40, a ring holding portion 7 to which a guide ring 6 through which a fishing line is inserted, and a ring holding portion. 7 and a front support leg 8a and a rear support leg 8b that connect between the fixed part 5a and 5b, and the axial direction of the ring holding part 7 (the direction of arrow A in FIG. 1; the front-rear direction). It is formed in a plate shape whose width in the left-right direction is larger than the thickness in The front side fixing part 5 a is provided on the front side of the ring holding part 7, and the rear side fixing part 5 b is provided on the rear side of the ring holding part 7.

  Further, in the present embodiment, the ring holding portion 7 is formed by providing an opening (through hole) 7a for holding the guide ring 6 in at least one of the support leg portions, that is, the frame portion of the front side support leg portion 8a. . The rear support leg 8b is composed of leg members 23 and 25 that extend separately from the rear fixing part 5b toward the ring holding part 7 in the left-right direction, and a gap 27 (a fishing line can pass between the leg members 23 and 25). Through-holes) are formed. In addition, the back side support leg part 8b can also be formed as an obstruction | occlusion wall which a fishing line cannot pass (there is no gap | interval 27). In that case, the fishing line guide 1 can be used as an entrance guide for the penetrating rod (a guide for introducing the fishing line into the inner hole of the fishing rod). Further, a guide ring (not shown) is also provided in the gap 27 (through hole), and a ring holding portion is formed on the rear support leg portion 8b in addition to the front side to hold the pair of front and rear guide rings. good.

  Each of the front side and rear side fixing portions 5a and 5b is a portion (also referred to as a foot portion) fixed to the surface of the fishing rod at the lower end of the frame, and extends in the front-rear direction of the fishing line guide 1 in this embodiment. When the fishing line guide is attached to the fishing rod with a plate-like protrusion for attaching the fishing rod, it extends in the axial direction of the fishing rod, and the contact surfaces 19 and 21 on the back side are placed on the surface of the fishing rod, for example, the line 70 Is fixed by applying an adhesive 72 on the outside (see FIG. 2). In addition, each fixing | fixed part 5a, 5b can take various shapes, such as one leg and two legs.

  The ring holding part 7 is a part for fastening the guide ring 6 so as to guide the fishing line in a state of being separated from the surface of the fishing rod. The ring holding part 7 is formed with an opening 7a for fitting and fixing the guide ring 6 and has a substantially circular outer shape as a whole. The guide ring 6 inserted into the opening is formed in a ring shape, and is formed of a member having a small sliding resistance at the fishing line guide surface 6a which is the inner peripheral surface thereof, for example, titanium, aluminum, SUS, ceramics, or the like. Has been. The guide ring 6 is fitted and fixed to an opening 7 a formed in the ring holding portion 7 after the frame 3 is integrally formed by the prepreg.

  Moreover, the front side support leg part 8a is a site | part which connects the front side fixing | fixed part 5a and the ring holding | maintenance part 7 so that the guide ring 6 may be spaced apart from the surface of a fishing rod. The front side support leg portion 8a may be formed so as to be along the vertical direction X when the fishing line guide is viewed from the front (the axial length direction of the fishing rod) or to be inclined with respect to the vertical direction X. May be. Also, a plurality of support legs may be formed, such as providing a pair of support legs separately on the left and right. The rear support leg 8b does not have the ring holding part 7 in this embodiment, but forms a ring holding part 7 that holds the guide ring 6 in cooperation with the front support leg 8a as described later. You may do it.

  The frame 3 is formed with at least one bent portion. In the present embodiment, a first bent portion (a bent portion that rises from the end of the fixed portions 5a, 5b toward the support legs 8a, 8b) 10a at the boundary portion between the fixed portions 5a, 5b and the support legs 8a, 8b. 10c (that is, the frame 3 has bent portions 10a and 10c that rise from the front-side fixing portion 5a and the rear-side fixing portion 5b of the ring holding portion 7 toward the supporting leg portions 8a and 8b, respectively. Furthermore, a second bent portion 10b that is bent more gently than the first bent portion is formed on the ring holding portion 7 side of the front side support leg portion 8a. A third bent portion 10d is also formed at a transition portion between the ring holding portion 7 and the rear side support leg portion 8b. The bent portion 10d is a bent portion that changes from the rising direction (ascending direction) to the descending direction between the front side supporting leg portion 8a and the rear side supporting leg portion 8b so as to be folded up and down on the center side in the front-rear direction of the frame 3. The guide ring holding part 7 is formed on the front side of the bent part 10 d of the frame 3. In addition, a guide ring holding part may be provided in at least one of them, such as providing a guide ring holding part on the rear side (rear side support leg part 8b side) of the bent part 10d to hold the guide ring. A pair of guide rings may be held by providing guide ring holding portions on both sides. In addition, the said boundary part corresponds to the area | region which stands | starts up toward the ring holding | maintenance part 7 or the support leg part 8a, 8b from the edge part of the fixing | fixed part 5a, 5b which is actually fixed with respect to the outer surface of a fishing rod. Further, a bent portion 10 d formed so as to be folded back from the front side supporting leg portion 8 a to the rear side supporting leg portion 8 b at the upper end on the front and rear center side of the frame 3 is the steepest bent portion in the frame 3.

  When forming the bent portion as described above in the frame 3, in particular, by forming the second bent portion 10b on the front side support leg portion 8a, the bending angle by bending the entire frame is set stepwise. It is possible to improve the strength by dispersing the stress concentration. If a plurality of bent portions 10a, 10b, 10c, and 10d are formed on the frame 3 as described above, they are formed at or near the boundary portions between the fixed portions 5a and 5b and the supporting leg portions 8a and 8b. The bending angle of the bent portion (corresponding to the second bent portion 10b in the drawing) formed on the front side support leg portion 8a rather than the bent portion (first bent portions 10a, 10c corresponding to the drawing) is set. It is preferable to set a small value. Specifically, the bending angles θ1 and θ1 ′ of the bent portions formed at or near the boundary portions between the fixed portions 5a and 5b and the supporting leg portions 8a and 8b are in the range of 30 to 90 degrees, The bending angle θ2 of the bending portion 10b formed on the side support leg portion 8a is in a range of 0 to 45 degrees with smaller angles (θ1, θ1 ′> θ2), and both angles (θ1 and θ2 or θ1 ′ and θ2). ) Is preferably 30 degrees or more and 100 degrees or less.

  As shown in FIG. 2, the bending angle is defined by the angle at which the tangent lines intersect before and after the bent portion. As described above, when the bent portions 10a, 10b, and 10c are formed on the frame, the relationship between the angles is preferably set as described above. Further, the bending angle between the fixing portion 5a5b and the ring holding portion 7 (the angle at which the lower surface tangent of the fixing portions 5a and 5b intersects the ring holding portion 7) θ3 is set in the range of 30 to 100 degrees. It is preferable. Further, the above-described support leg portion 8a is linearly formed between the two bent portions 10a and 10b, but may be formed into a curved shape having a predetermined curved surface between the two bent portions 10a and 10b. Alternatively, the entire support leg portion may be formed of a curved surface.

  By forming the bent portion so as to have such an angular relationship, stress concentration on the specific bent portion can be prevented, and the strength can be stabilized.

  The bent portions 10a, 10b, 10c, and 10d formed on the frame as described above are regions that are easily damaged due to stress concentration, but by using a manufacturing method and a prepreg configuration as described later. The specific strength and the specific rigidity are improved. Note that a reinforcing layer may be provided at the bent portion so that damage is not easily caused even when a load is applied by a fishing line. Here, the reinforcing layer enhances the bending rigidity of the frame 3 in the front-rear direction when the fishing line guide is attached to the fishing rod 40, and reinforces the bending angle when the bent portion is bent by a load. Among the plurality of prepregs constituting the laminated fiber reinforced resin layer, one of the prepregs includes a reinforcing fiber extending along the frame 3 from the front side fixing portion 5a to the rear side fixing portion 5b. What is necessary is just to provide the reinforcing piece which has the structure comprised or has the reinforcing fiber of the circumferential direction.

  The frame 3 is formed by pressing or the like from a prepreg (a plate-like body after thermoforming) in a state in which a bent portion having a configuration as described above is formed in advance. Is formed. In the present embodiment, as shown in FIG. 1, the front support leg portion 8 a that rises from the end portion of the front fixing portion 5 a via the first bent portion 10 a gradually becomes wider as it moves upward, and the guide The ring 6 is integrally connected to a substantially circular ring holding portion 7 in which an opening 7a is formed. Note that an opening (thickening) 8a may be formed in the front side support leg portion 8a in order to reduce the weight.

  Next, a method for forming the frame 3 having the above-described configuration will be described with reference to FIGS. First, the overall manufacturing process will be described, and then the prepreg lamination state and the arrangement state of the prepreg reinforcing fibers to be laminated will be described.

  As described above, the frame 3 is formed by sequentially laminating a plurality of prepregs in which reinforcing fibers are impregnated with a synthetic resin in the front-rear direction (fishing line insertion direction; arrow A direction in FIG. 1). In this case, for example, the prepreg is configured in a state in which reinforcing fibers such as carbon fibers and glass fibers are aligned in a predetermined direction, or in a knitted sheet shape, and a thermosetting resin (for example, epoxy resin). And a thermoplastic resin (for example, nylon) impregnated as a matrix resin. In addition, although the flame | frame 3 is comprised by the some fiber reinforced resin layer, it may contain the reinforcement layer so that the above-mentioned bending part may be reinforced.

  First, the prepreg as described above is cut into a predetermined shape, and this is overlaid so as to form a plurality of layers. The number of prepregs to be superimposed (number of layers) and the configuration of individual prepregs are not particularly limited. As described above, the bent portions 10a, 10b, 10c, and 10d are formed on the frame 3 and used. At this time, the type of prepreg and the conditions for overlapping are arbitrarily adjusted in consideration of the load applied to the frame 3, the characteristics of the fishing rod to be mounted, the mounting portion, and the like.

  A plurality of prepregs stacked in this way are set in a mold 50 as shown in FIG. The mold 50 according to the present embodiment includes an upper mold 51 and a lower mold 52 that are divided vertically, and the laminated prepreg (laminated material 20) is set at a predetermined position of the lower mold 52. Between the upper mold | type 51 and the lower mold | type 52, the cavity part 50a is formed according to the position where the laminated material 20 is set, and the mold release agent is coated in the surface area. Note that the laminated prepreg sheet in FIG. 4A is depicted as a plan view in a state of being placed on the lower mold 52, but actually extends long in the right and left direction.

  The upper mold 51 constituting the mold 50 is concave, and the lower mold 52 is convex, and the cavity 50a (this) is formed between the two so that the frame 3 is formed when both are pressed. The cavity 50a is formed with 50a (corresponding to the thickness of the frame 3). When the laminated material 20 is placed on the lower mold 52, the bending formation concave portions 52a, 52b, 52c and the bending formation convex portion 52d are located at positions corresponding to the bending portions 10a, 10b, 10c, 10d. The upper mold 51 is formed with bending formation convex portions 51a, 51b, 51c and a bending formation concave portion 51d corresponding to the bending formation concave portions 52a, 52b, 52c and the bending formation convex portion 52d.

  Note that the laminated material 20 may be set in a lower mold in a state where the whole is overlapped at a time, or may be laminated in a plurality of times, for example, one by one. By dividing into a plurality of times as described above, the movement of the reinforcing fibers can be reduced and the lower mold 52 can be accurately set at a predetermined position. In the present embodiment, as described above, since the mold 50 is divided vertically, the laminated material 20 is placed on the lower mold 52 and held in a predetermined shape according to the shape of the mold. Of course, the mold is merely an example, and the mold dividing direction can be in any form such as a horizontal direction or an inclined direction.

  And after setting the laminated material 20 to the lower mold | type 52, the laminated material 20 is pressurized and fixed. About this pressurization and fixation, you may clamp | tighten with the upper mold | type 51, and may press with a hand or a pressing tool. At this stage, the shape corresponding to the shape of the frame after molding, including the bent portion, is maintained, thereby preventing the occurrence of internal residual stress after molding, and the strength can be improved and stabilized. (At this stage, each prepreg is in an uncured state (including after temporary curing), and the bent portion is formed before heat curing).

Thereafter, a heating step is performed, the matrix resin is cured and molded, and then a molded product (a plate-like body 30 having a bent portion) is taken out from the mold 50.
In addition, when the above-described bent portion is pressed and cured by the mold 50, it is preferable that the bent portion is pressed relatively stronger than the front and rear regions. Thus, by strongly pressing the area of the bent portion, voids in the bent portions (10a, 10b, 10c, 10d) of the molded frame can be prevented, and the strength can be improved and stabilized. become. Accordingly, the bent portions 10a, 10b, 10c, and 10d of the molded frame 3 can have a higher fiber ratio than the front and rear regions (fixed portions and supporting leg portions), and thus are easily damaged. The bent portion can be strengthened.

  Next, the frame 3 is cut out from the plate-like body 30 so as to have a predetermined shape (the unnecessary portion is deleted (destroyed) from the plate-like body 30 and the frame 3 is taken out (leaves)). As described above, since the prepreg is a plate-like body in which a bent portion is formed after the heat-curing treatment, it is cut out by pressing, cut out with a liquid (water jet, etc.), cut out with a cutting tool (end mill, etc.), etc. By adopting an arbitrary method, as shown in FIG. 5, it becomes possible to cut out a plurality of frames 3 from one plate-like body 30, and it is possible to efficiently manufacture a lightweight and high-strength fishing line guide. It becomes possible.

  During this processing, it is preferable to simultaneously form the basic outer shape of the frame 3, that is, the ring holding portion 7 having the opening 7a, the leg members 23 and 25, the supporting leg portion 8b having the gap 27, and the like. These may be formed in separate steps. In addition, the plate-like body 30 is not limited to a simple planar shape, but the laminated thickness is changed depending on the position, or the plate-like portion extends in a plurality of directions (T-shape, inverted Y-shape, etc.) Or a curved surface shape, or a plurality of plate-like portions may be combined.

  Next, detailed processing is performed as necessary. In this detailed processing, for example, the shape of the fixing portions 5a and 5b can be formed into a curved surface so that it can be easily placed on a fishing rod, or the end of the fixing portion can be polished so that it can be easily wound and fastened. Applicable.

  Next, the surface treatment of the frame 3 is performed. For example, by performing barrel processing, surface burrs are removed, and finish polishing is performed to such an extent that surface gloss is obtained. Regarding the degree of this polishing, it is possible to arbitrarily adjust the polishing agent, the polishing time, etc. according to the size, shape, material characteristics, etc. of the fishing line guide 1. By performing such barrel processing, the frame 3 can be polished without cutting the reinforcing fiber, the strength can be stabilized, and a fishing line guide having an excellent appearance can be obtained.

  In addition, when performing such a grinding | polishing process, it is preferable to grind | polish so that a part of reinforcing fiber may be exposed to the surface of the flame | frame 3, and a matrix resin may remain partially. By doing so, it becomes possible to further improve the gloss of the polished surface. The side surface of the frame 3 can be prevented from delamination by polishing so that the ends of the plurality of fiber reinforced resin layers are flush with each other.

  Next, a film is formed on all or a part of the frame 3 as necessary. For example, it is possible to perform coating to improve the appearance and protect the frame body, or to deposit metal or ceramics.

  Then, the guide ring 6 is attached to the portion of the opening 7a of the frame formed as described above. As a method for attaching the guide ring 6, any fixing method such as press-fitting, adhesion, curling, or the like can be adopted.

  According to the fishing line guide 1 formed by the manufacturing method as described above, the weight is lighter than that made of metal, and further, the structure is excellent in specific strength, specific rigidity, and flexibility. Is possible. For this reason, even if a large number of such fishing line guides are mounted, the entire fishing rod is not increased in weight, and the performance of the fishing rod is improved. In particular, a portion such as a tip rod can be further reduced in weight, so that it is easy to sense delicate hits, and the performance of the fishing rod can be further improved. Further, since the fixing portions 5a and 5b are provided on both the front side and the rear side of the ring holding portion 7, the fishing line can be stably held by being stably held by the fishing rod.

  Next, when the frame 3 is formed by the prepreg as described above, a preferable arrangement mode of the prepreg will be described.

  The frame 3 of the present embodiment is composed of a plurality of fiber reinforced resin layers obtained by laminating prepregs in which reinforcing fibers are impregnated with a synthetic resin. In this embodiment, as shown in FIG. 6, an axial length direction fiber resin layer 21 in which reinforcing fibers are aligned along the axial length direction of the fishing rod, and a crossing direction having a predetermined angle with respect to the axial length direction of the fishing rod. And oblique fiber resin layers 22a and 22b in which reinforcing fibers are aligned, and a woven fabric layer 23 in which reinforcing fibers are knitted. The fiber reinforced resin layer formed by each of these prepregs extends continuously from the front side fixing portion 5a to the rear side fixing portion 5b.

  Specifically, in this embodiment, a shaft is formed by a prepreg in which reinforcing fibers are aligned in the axial length direction in a neutral shaft area (in FIG. 6, the neutral shaft is indicated by X) that is an intermediate position of the thickness of the frame 3. A long-direction fiber resin layer 21 is disposed, and on the outer side (both sides), a predetermined angle with respect to the axial length direction (inclination angle is arbitrary, but is preferably 15 to 75 degrees, more preferably 30 to 60 degrees). The oblique fiber resin layers 22a and 22b are arranged by a prepreg in which reinforcing fibers are aligned, and further, reinforcing fibers are provided in the outermost layer (the entire surface on both sides may be partially outermost). A woven fabric layer 23 is provided by the knitted prepreg. The axial length direction fiber resin layer 21 may have a plurality of layers (1 to 4 layers). The oblique fiber resin layers 22a and 22b may have different directions of reinforcing fibers in the respective layers.

  In this way, when forming a fishing line guide made of fiber reinforced resin, when the frame itself is viewed from the front or plan, a prepreg is selected and laminated so that the reinforcing fibers are oriented in at least three directions. Is preferred. That is, by setting the direction of the reinforcing fibers to three or more directions, it is possible to form a fishing line guide that is efficient, lightweight, and excellent in strength.

  Moreover, it is preferable to arrange | position the woven fabric layer 23 in the outermost layer of the flame | frame 3 like the arrangement | positioning structure of the above-mentioned prepreg. This is because the surface of the frame 3 is a part that is easily hit by other objects and is easily peeled off, and the reinforcing fibers are peeled off from the edge of the frame such as when the frame is bent by the tension of the fishing line during actual fishing. Since there is a possibility of breakage, by arranging a woven fabric layer in which reinforcing fibers are knitted in this surface region, it is possible to effectively prevent tearing and peeling of the reinforcing fibers, improving strength, And stabilization can be achieved.

  By disposing such a woven fabric layer 23, it is possible to prevent the reinforcing fibers from peeling and breaking more reliably, and to improve the strength and stabilize the strength. Further, the bent portions 10a, 10b, 10c, and 10d can also be relatively strengthened, and a fishing line guide that is lightweight and excellent in strength balance can be obtained. Of course, the mesh width of the woven fabric layer 23 described above is preferably smaller than the minimum width at the fixed portions 5a and 5b and the ring holding portion 7 as well.

  Moreover, it is preferable to arrange | position the axial length direction fiber resin layer 21 in the intermediate | middle layer area | region of the flame | frame 3 like the above-mentioned structure. As a result, even if a bending force is applied to the frame 3 by the tension of the fishing line along the axial length direction, it is possible to efficiently increase the specific rigidity in that direction while reducing the weight.

  In addition, it is preferable that the fiber ratio of the bent portions 10a, 10b, 10c, and 10d is higher than that of the front and rear regions. For example, as described in the above-described process, it is possible to increase the fiber ratio of the bent portion by increasing the pressing force in the bent portion region during heat forming, and the fiber ratio of the bent portion can be increased. By doing so, it is possible to obtain a fishing line guide that is not easily damaged even when the frame is bent due to the load acting.

  7 to 9 show modified examples of the above-described embodiment. In this modification, an opening 7b is provided in the rear support leg 8b to hold the guide ring 6 (see FIG. 9), and the front support leg 8a and the rear support leg 8b cooperate to guide the ring 6 Is formed. That is, the ring holding part 7 is formed across the front side supporting leg part 8a and the rear side supporting leg part 8b (the guide ring 6 is held across the front side supporting leg part 8a and the rear side supporting leg part 8b; (See FIG. 9). Therefore, the part of the front side supporting leg part 8a and the part of the rear side supporting leg part 8b rising from each of the first bent part 10a on the front side and the first bent part 10c on the rear side abut (join) each other. The frame 3 is molded in an integrated state. In this case, in order to efficiently and easily mold the supporting leg joint-type frame 3, as shown in FIG. 7, the mold for molding the frame 3 includes an upper right mold 51A, an upper left mold 51B, and a lower mold. You may be comprised with the metal mold | die 52. FIG. FIG. 8 shows a plate-like body 30 of the supporting leg joint type formed by these molds. Note that the front support leg 8a and the rear support leg 8b may be provided close to each other (not joined) to hold the guide ring 6 therebetween.

  As mentioned above, although embodiment of this invention was described, this invention is not limited to an above-described structure, It can change variously.

  In the present invention, the frame portion constituting the fishing line guide 1 is constituted by a fiber reinforced prepreg, and the specific strength, specific rigidity, etc. are increased, and in particular, as described above so as not to cause breakage in the bent portion region. It is characterized by using the manufacturing method and the arrangement mode of the prepreg. The prepreg constituting the above-described frame is not limited to the embodiment with respect to the configuration and type of reinforcing fiber, the elastic modulus, the resin impregnation amount, the thickness, and the like, and may be variously modified. Is possible.

  Moreover, although the fishing line guide 1 demonstrated the structure fixed to a fishing rod by a thread stop etc., for example, you may be comprised as a floating guide slidably fitted with respect to a fishing rod. If such a floating guide is used, the fixing portion may be formed in a tubular shape, and the bent portions 10a, 10b, and 10c may not be formed in the frame 3 described above.

  In addition, as described above, the prepreg constituting the frame can be efficiently reduced in weight if the orientation directions of the reinforcing fibers are three or more when viewed from the front or in a plan view in a stacked state. Although the strength can be improved, the direction of the reinforcing fibers of the prepreg constituting each layer and the lamination position thereof are not particularly limited and can be appropriately modified. In this case, as described above, the outermost layer of the frame is preferably provided with a woven fabric layer so that breakage and the like can be effectively prevented.

  Further, the frame may be laminated such that the fiber reinforced resin layers on both sides with respect to the center of the fiber reinforced resin layer are symmetrical with respect to each other toward the outer layer. In addition, the frame has oblique fiber reinforcement in which reinforcing fibers are inclined in directions opposite to each other with respect to the longitudinal axis of the frame (the extending direction of the frame) on one side and the other side with respect to the center of the fiber reinforced resin layer A resin layer may be provided. Further, the frame is provided with reinforcing fibers in the axial length direction (extending direction of the frame) in a neutral shaft region that is an intermediate position in the thickness direction (front-rear direction) of the frame, and outside the neutral shaft region. The reinforcing fibers may be arranged in a direction intersecting the axial length direction. Further, the side surface of the frame may be formed with a plurality of fiber reinforced resin layers appearing on the side surface.

DESCRIPTION OF SYMBOLS 1 Fishing line guide 3 Frame 5a, 5b Fixing part 6 Guide ring 7 Ring holding part 8a, 8b Support leg part 10a, 10b, 10c, 10d Bending part

Claims (7)

A fishing line guide having a frame made of a fiber reinforced resin formed by a fiber reinforced prepreg in which a reinforced fiber is impregnated with a synthetic resin,
The frame has a fixed portion that is attached and fixed to a fishing rod, and a ring holding portion to which a guide ring through which a fishing line is inserted is attached,
The fishing line guide, wherein the fixing portion is provided on each of a front side and a rear side of the frame.   The fishing line guide according to claim 1, wherein the frame is formed by laminating a plurality of fiber reinforced resin layers.   3. The fishing line guide according to claim 1, wherein the frame includes a bent portion that changes from a rising direction to a falling direction between a front-side fixing portion and a rear-side fixing portion.   4. The fishing line guide according to claim 2, wherein the frame includes a fiber reinforced resin layer that continuously extends from a fixing portion on a front side to a fixing portion on a rear side.   The fishing line guide according to any one of claims 1 to 4, wherein the ring holding portion is formed by providing an opening for holding the guide ring in the frame. A method for manufacturing a fishing line guide comprising a frame having a ring holding portion for attaching a guide ring, and a front side fixing portion and a rear side fixing portion that are provided on the front side and the rear side, respectively, and are attached to a fishing rod. Because
A fiber reinforced prepreg impregnated with synthetic resin in a reinforcing fiber is placed in a bent state so as to form a bent portion for forming the ring holding portion, the front side fixing portion, and the rear side fixing portion, respectively. Bending placement step
A plate-like body forming step in which a fiber-reinforced prepreg bent and arranged with respect to the mold is heated and cured to form a plate-like body;
A frame forming step of forming the frame from the formed plate-like body;
A method for manufacturing a fishing line guide, comprising:   The method for manufacturing a fishing line guide according to claim 6, wherein the frame forming step is a press work or a cutting process using a liquid or a cutting tool.

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