JP2012075363A - Fishing line guide - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fishing line guide capable of increasing the rigidity while reducing the weight.SOLUTION: The fishing line guide includes a fiber-reinforced resin frame 3 having a ring holding part 5 into which a fishing line is inserted, a fixed part 6 to be fixed to a fishing rod and a support leg part 7 for separating the fishing line from the surface of the fishing rod by connecting the ring holding part 5 and the fixed part 6. The specific gravity of the frame 3 is set to be 2.0 or lower, and the rigidity G=(F/L)×H (H is the height of the frame) obtained based on the stretch L of the frame 3 when the tensile load F is added to the apex of the ring holding part 5 in the direction of insertion of the fishing line into the ring holding part 5 with the fixed part 6 fixed to the fishing rod is set to be 5.0 or higher.

Description

  The present invention relates to a fishing line guide that is mounted on a fishing rod and guides the fishing line.

  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 there is a limit to increase the rigidity while reducing the weight, which is a bottleneck in improving the performance of the fishing rod. . In general, when a fishing line is unwound from a reel when throwing a device, the unrestricted fishing line collides with the fishing line guide many times, and the collision causes the fishing line guide to vibrate or deform. Thus, there is a problem of affecting the flying distance of the device. In order to achieve the desired performance of the fishing rod, it is extremely important to make the fishing line guide lighter and to have higher rigidity.

  The present invention has been made paying attention to the above-described problems, and an object of the present invention is to provide a fishing line guide capable of increasing rigidity while achieving weight reduction.

  In order to solve the above-mentioned problems, a fishing line guide according to the present invention includes a ring holding part through which a fishing line is inserted, a fixing part fixed to a fishing rod, and the ring holding part and the fixing part to connect the fishing line. A frame made of fiber reinforced resin having a support leg portion for separating from the surface of the fishing rod, the frame has a specific gravity of 2.0 or less, and is fixed to the top of the ring holding portion in a state where the fixing portion is fixed. On the other hand, the rigidity value G = (F / L) × H (H is the height of the frame) obtained based on the elongation L of the frame when a tensile load F is applied in the direction of inserting the fishing line with respect to the ring holding portion is 5. 0.0 or more.

  The fishing line guide having the above-described structure is a lightweight and high-rigidity fishing line guide because its frame portion is made of fiber reinforced resin and has a specific gravity of 2.0 or less and a rigidity value G of 5.0 or more. Can be realized. Therefore, even if the fishing line fed from the reel collides with the fishing line guide when throwing the device, it can be prevented that the fishing line guide vibrates or deforms due to the collision (so that the fishing line can be guided smoothly and the fishing line is released. And the flight distance of the device can be increased), and the desired performance of the fishing rod can be exhibited. Moreover, since the responsiveness with respect to the fish hitting is improved by reducing the weight and increasing the specific rigidity, it is possible to prevent a delay in the matching timing to match the fish hitting. Such a lightweight and highly rigid fishing line guide can be realized because the frame is formed of fiber reinforced resin. If the frame stiffness value G is less than 5.0, it is not preferable because the fishing line guide frame shakes greatly when the fishing line comes in contact, increasing the line resistance, and if the specific gravity of the frame exceeds 2.0. This is not preferable because the shake of the frame becomes larger. The rigidity value G is preferably 5.0 to 30, more preferably 7.0 or more (preferably 7.0 to 25).

  In the above configuration, “the height of the frame” is a vertical distance from the mounting surface of the fixing portion to the top surface (upper end) of the ring holding portion with respect to the surface of the fishing rod.

  The fishing line guide according to the present invention connects the ring holding part through which the fishing line is inserted, the fixing part fixed to the fishing rod, the ring holding part and the fixing part to separate the fishing line from the surface of the fishing rod. And a frame made of fiber reinforced resin having a supporting leg portion for the ring, the frame has a specific gravity of 2.0 or less, and the ring holding portion with respect to the top of the ring holding portion with the fixing portion fixed The vibration index fw = f × H (H is the height of the frame) obtained based on the resonance frequency f when vibration is applied in the direction of inserting the fishing line with respect to is 13000 or more.

  The fishing line guide having the above structure is light in weight and excellent in vibration damping because the frame portion is made of fiber reinforced resin and has a specific gravity of 2.0 or less and a vibration index of 13000 or more. Can be realized. Therefore, even when the fishing line fed from the reel collides with the fishing line guide when throwing the device, the fishing line guide can be prevented from vibrating due to the collision (so that the fishing line can be guided smoothly and the fishing line releasing performance is improved. In addition, the flight distance of the device can be extended), and the desired performance of the fishing rod can be exhibited. If the vibration index is less than 13000, the fishing line guide is likely to vibrate, the fishing line is likely to get entangled, and stable fishing line release cannot be ensured. Further, since the resonance frequency becomes smaller as the height of the fishing line guide (frame) becomes higher, this vibration index fw based on the influence of the guide height is a value suitable for evaluating the damping performance of the fishing line guide. It is. Further, in relation to the configuration of the first aspect, the higher the rigidity value G, the larger the vibration index fw, and the higher rigidity and vibration control performance can be obtained. In addition, since the fishing line guide that is most affected by the fishing line during the anchoring operation is the fishing line guide that is located closest to the fishing pole or the fishing line guide that is next (tip side), such a large diameter It is particularly important to evaluate the vibration index in the fishing line guide (for example, the outer diameter is 10 mm or more or 12 mm or more).

In the above structure, the reinforcing fibers constituting the frame preferably has a tensile modulus is 20,000 kgf / mm ² or more, the reinforcing fibers of the tensile modulus 20,000 kgf / mm ² or more high elasticity ring holding Disposed on the support portion, the support leg portion, and the fixed portion. The high elastic reinforcing fiber is preferably 50% (% by weight or volume%) or more of the total amount of reinforcing fiber used, but is not limited thereto. In addition, if the usage-amount of a highly elastic reinforcement fiber is less than 10%, since it becomes difficult to obtain the above-mentioned high rigidity value G, so that a fishing line guide becomes high (it enlarges), it is not preferable.

  Moreover, in the said structure, it is preferable that the reinforcing fiber is distribute | arranged to the support leg part of the flame | frame along the longitudinal direction. According to this, the flexibility can be improved, and even if the fishing line is caught, it is difficult to break.

  Moreover, in the said structure, it is preferable that the frame has a wall thickness of the lower end part of a support leg part larger than the wall thickness of the top part of a holding | maintenance part. Here, the “thickness” means a dimension in a direction substantially along the fishing line insertion direction with respect to the ring holding portion (a dimension in a direction substantially along the longitudinal direction of the fishing rod with the fishing line guide attached to the fishing rod). In addition, the “lower end portion of the support leg portion” is a connection portion with the fixed portion of the support leg portion.

  ADVANTAGE OF THE INVENTION According to this invention, the fishing line guide which can raise rigidity, aiming at weight reduction can be provided.

The front view which shows one Embodiment of the fishing line guide which concerns on this invention. The perspective view explaining the state of a reinforced fiber in the fishing line guide shown in FIG. Sectional drawing of the A section of FIG. The figure explaining the shaping | molding method of the frame which comprises the fishing line guide shown in FIG. Side surface sectional drawing explaining the molding state by the metal mold | die shown in FIG. The figure which shows schematically the method of the rigidity measurement test of the frame of a fishing line guide. The front view of the fishing line guide which comprises the other arrangement | positioning form of a fiber bundle. The graph which shows an example (holding part outer diameter 30mm) of the test result of FIG. FIG. 7 is a graph showing an example of the test result in FIG. 6 (holding portion outer diameter: 19 mm). The graph which shows an example (holding part outer diameter 13mm) of the test result of FIG. The graph which shows an example (10 mm of holding part outer diameters) of the test result of FIG. The figure which shows schematically the method of the vibration index measurement test of the frame of a fishing line guide. A comparison of the vibration index of a fiber reinforced resin fishing line guide (indicated by a circle in the figure) with that of a titanium fishing line guide (indicated by a triangle in the figure). The graph figure shown by the relationship with an outer diameter.

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.
1 and 2 show an embodiment of a fishing line guide according to the present invention. In these drawings, FIG. 1 is a front view of a fishing line guide, and FIG. 2 is a perspective view for explaining the state of reinforcing fibers in the fishing line guide shown in FIG. The arrow D direction in FIG. 2 coincides with the axial length direction of the fishing rod when the fishing line guide is attached to the fishing rod, and the fixing portion is attached to the fishing rod with the base rod side (see FIG. 1). FIG. 2 is a view as seen from the direction of arrow D). Hereinafter, the front side (front side) means the tip side, and the rear side (rear side) means the base end side (margin side). Further, the left-right direction is the left-right direction with respect to the axis X when the frame is viewed from the arrow D direction.

The fishing line guide 1 includes a so-called fiber reinforced resin frame 3 in which a reinforced fiber is impregnated with a synthetic resin. The frame 3 includes a holding portion (ring holding portion) 5 that holds a guide ring 20 through which a fishing line is inserted, and a fixing portion 6 for attaching a fishing rod that is fixed to the outer surface of the fishing rod. Then, it has the structure which provided the connection part (support leg part) 7 between the holding | maintenance part 5 and the fixing | fixed part 6. FIG. That is, the fixing portion 6 is integrally formed by bending the end portion of the connecting portion 7 toward the base end side. As shown in FIG. 2, the connecting portion 7 is raised obliquely upward from the fixed portion 6 so that the fishing line is not easily caught.
By forming the connecting portion 7 between the holding portion 5 and the fixing portion 6, the fishing line inserted through the guide ring 20 ensures a certain gap with the outer surface of the fishing rod (the surface of the fishing rod). Separated from).

  The holding portion 5 is formed in a plate shape whose width in the left-right direction is larger than the thickness in the front-rear direction (arrow D direction in FIG. 2), and an opening for fitting the guide ring 20 in the center region thereof. 5A is formed. As will be described later, the opening 5A can be integrally formed when the frame 3 is molded by a mold. In addition, the connecting portion 7 is formed with a through hole 7A so as to be symmetrical at a position including the center axis X, so that the weight of the frame portion can be reduced. Further, in the present embodiment, the frame 3 has a thickness at the lower end portion of the connecting portion 7 (the connecting portion with the fixing portion 6 of the connecting portion 7) rather than the thickness (the dimension in the left-right direction) W1 of the top portion 5a of the holding portion 5. The thickness (dimension in the left-right direction) W2 is set large.

  The frame 3 is formed of a fiber reinforced resin in which reinforcing fibers in a direction oriented in the extending direction of the frame are disposed. Reinforcing fiber includes a surface constituting the frame in the extending direction (the extending direction here is the direction in which the part of the frame formed with directionality is arranged) It is only necessary to include the one oriented in the direction extending in the vertical direction, whereby the flexibility can be improved. The parts constituting the frame 3 of the fishing line guide of the present embodiment are the direction in which the fixing portion 6 is inclined in the front-rear direction, the connecting portion 7 is inclined upward with respect to the axis X, and the direction in which the holding portion 6 circulates in an annular shape. Each is extended with directionality. In addition, the reinforcing fiber in the present embodiment is configured by a plurality of reinforcing fibers being bundled (fiber bundle 10), and is disposed in the synthetic resin forming the frame 3 so as to be reinforced like an aggregate. I am doing. That is, the frame 3 of the present embodiment is formed of a fiber reinforced resin in which the above-described fiber bundle (bundle of reinforcing fibers) 10 is arranged so as to be continuous along the extending direction of the parts constituting the frame. . Therefore, the fiber bundle 10 is arranged so as not to protrude outside the frame 3.

  Specifically, the fiber bundle 10 of the above-mentioned continuous reinforcing fibers is connected to the one end side (the through hole 7A) of the connecting portion 7 from the fixing portion 6a on one end side (left side) with the axis X as a boundary. Folded to pass around the annular holding portion 5a around the opening 5A, passing through the left side 7a (the reinforcing fiber is arranged along the longitudinal direction of the connecting portion (support leg portion) 7 of the frame) Then, the other end side of the connecting portion 7 (right side across the through hole 7A) 7b (the reinforcing fiber is arranged along the longitudinal direction of the connecting portion (support leg portion) 7 of the frame), the other end side It continues so as to reach the fixing part 6b on the (right side). That is, as shown in FIG. 2, the fiber bundle 10 is continuously arranged along the frame shape, and the frame 3 is in a state in which the surrounding area is reinforced by the continuous fiber bundle 10. Yes.

Here, the configuration of the fiber bundle 10 will be described with reference to FIG.
FIG. 3 shows a cross-sectional structure of a part of the predetermined portion of the frame 3 (right connecting portion). As shown in this figure, the aggregate that becomes the fiber bundle 10 is arranged on the center side of the synthetic resin material, and the synthetic resin layer 15 is formed around the fiber bundle 10. Carbon fiber, glass fiber, aramid fiber, or the like is used as the reinforcing fiber constituting the fiber bundle 10, and the fiber bundle 10 has a core fiber 10 </ b> A arranged in the longitudinal direction and a periphery that goes around the core fiber 10 </ b> A. It is comprised with the fiber 10B.

  The core fiber 10A can be configured by bundling a large number of reinforcing fibers, and the peripheral fibers 10B can be arranged in a state of being knitted around the longitudinal direction of the core fiber 10A. In this case, the peripheral fiber 10B is configured by one fiber, but may be disposed around the core fiber 10A in a state where a predetermined number of fibers are bundled. Then, in a state where the reinforcing fibers are bundled as described above, this is covered with the synthetic resin layer 15 and is reinforced as an aggregate of the frame 3 of the fiber reinforced resin. When the fibers are knitted in this way, the synthetic resin enters the knitted spaces and is strongly held, and a frame having high strength can be obtained.

  Note that the fiber bundle 10 may be a frame reinforced with one fiber bundle or a plurality of fiber bundles, and not only in the center side of the frame 3 but also in a cross-sectional view. It may be in a state of being disposed throughout. Further, in the configuration shown in the figure, the fibers of the peripheral fibers 10B outside the respective fibers constituting the core fiber 10A have a large diameter, but both may be configured with the same diameter. The 10A fiber may be thick. Further, the fiber bundle may be one in which a plurality of reinforcing fibers are aligned in the longitudinal direction, one in which a plurality of reinforcing fibers are meandered so as to be entangled with each other, or one twisted together. The fiber bundle may be formed so that a space is formed between the fibers (the space is filled with the synthetic resin constituting the synthetic resin layer 15).

  Further, at least a part of the reinforcing fibers constituting the fiber bundle 10 (the reinforcing fibers constituting the frame 3) has a tensile elastic modulus of 20 ton / mm or more. This highly elastic reinforcing fiber having a tensile modulus of elasticity of 20 ton / mm or more is disposed in the ring holding part 5, the connecting part 7, and the fixing part 6. In particular, the high elastic reinforcing fiber is preferably 50% (% by weight or volume%) or more of the total amount of reinforcing fiber used, but is not limited thereto. In addition, if the usage-amount of a highly elastic reinforcement fiber is less than 10%, since the high rigidity value G mentioned later becomes difficult to be obtained, so that the fishing line guide 1 becomes high (it enlarges), it is unpreferable.

  In this way, by configuring the reinforcing fibers impregnated with the synthetic resin into a bundle shape, the handling becomes easy, and the frame can be easily formed as described later. Moreover, by making the multiple reinforcing fibers meander and entangle with each other, it is possible to improve the flexibility and improve the specific strength.

  The guide ring 20 is formed in a ring shape, and is formed of a member having a small sliding resistance at the fishing line guide surface 20a, which is the inner peripheral surface thereof, such as titanium, aluminum, SUS, ceramics, or the like. The guide ring 20 is fitted and fixed to the opening 5A formed in the holding portion 5 after the frame 3 is integrally formed using the fiber bundle as an aggregate. In addition, the holding | maintenance part 5 does not need to have the guide ring 20, In that case, 5A of openings of the holding | maintenance part 5 form the fishing line guide surface 20a.

Next, a method for forming the frame 3 having the above configuration will be described with reference to FIGS.
The frame 3 as shown in FIGS. 1 and 2 can be formed by a mold 50 shown in FIGS. 4 and 5. The mold 50 according to the present embodiment includes an upper mold 51 and a lower mold 52 that are divided vertically. FIG. 4 is a schematic view of the lower mold 52 opened from the upper mold 51 and viewed from above. The figure is shown. In this case, the lower mold 52 is formed with a mountain portion 52a having a substantially triangular shape in cross section where the one end surface is a gentle inclined surface 52b, 52c and the other end surface is a steeper inclined surface 52d. The fixed portion 6 of the frame 3 is formed on the 52d side, and the connecting portion 7 and the holding portion 5 of the frame 3 are formed on the gentle slopes 52b and 52c side. Note that the above-described mold 50 is merely an example, and the mold splitting direction can be set to an arbitrary form such as a horizontal direction or an inclined direction.

  A cavity (groove) 52C is formed along the entire shape of the frame 3 on the surface of the lower mold 52 (the surface of the peak portion 52a), and a through-hole formed in the connecting portion 7 is formed in the cavity 52C. According to the position of 7A, the through-hole convex part 52e and the opening convex part 52f are formed according to the position of the guide ring fixing opening 5A formed in the holding part 5.

  With respect to the cavity 52C of the lower mold 52, the fiber bundle 10 configured as shown in FIG. 3 is bent so as to follow the outer shape of the frame 3 as shown by a two-dot chain line in FIG. That is, the end side of the fiber bundle 10 is overlapped, and a loop corresponding to the connecting portion 7 and the holding portion 5 is formed in the middle portion and accommodated in the cavity 52C. At this time, it is preferable that the fiber bundle 10 is impregnated with a synthetic resin in advance and has shape retention when bent in a state before molding. As a result, it is possible to easily perform a bending operation and a mold housing operation for matching the fiber bundle 10 with the frame 3.

  In this state, the upper mold 51 is closed with respect to the lower mold 52, and the cavity is filled with a thermosetting resin (for example, epoxy resin) or a thermoplastic resin (for example, nylon) as a matrix resin. The resin can be cured to obtain the frame 3 made of fiber reinforced resin. In this case, the filled matrix resin constitutes the synthetic resin layer 15 shown in FIG. 3, but this matrix resin is also invaded between the fibers of the fiber bundle 10 described above. . Note that the fiber bundle 10 may be held in the mold so that the fiber bundle 10 does not move in the cavity during mold molding, and the upper mold 51 not only closes the cavity but also the lower mold 52. A pressing piece (not shown) may be provided so as to enter the cavity and press the fiber bundle 10 into the lower mold cavity.

  In addition, after taking out a molded object (frame) from an above-mentioned metal mold | die, resin molding (double molding) may be performed again by another metal mold | die, and you may make it a synthetic resin surround | circulate reliably. By doing in this way, it becomes possible to improve intensity | strength and an external appearance. Further, the frame 3 obtained from the mold is subjected to detailed processing as necessary. For example, the detailed processing may be performed by forming the shape of the fixed portion 6 of the fishing rod into a curved shape so that it can be easily placed on the fishing rod, or by polishing the end of the fixed portion 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.

  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 20 is attached to the opening 5A of the holding portion 5 of the frame formed as described above. As a method for attaching the guide ring 20, any fixing method such as press-fitting, adhesion, curling, or the like can be employed.

  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. This makes it possible to stably guide the fishing line. 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.

  In particular, in the region of the holding portion 5 and the region of the connecting portion 7, by having the reinforcing fiber bundle 10 oriented in the extending direction as described above, the flexibility can be improved, so when the fishing line is caught, etc. Even if a large load is applied, breakage or the like hardly occurs. Further, in the region where the fixed portion 6 transitions to the connecting portion 7, the bending angle is large, and thus a large bending stress acts, but the state is effectively reinforced by the reinforcing fibers having such directionality. Therefore, it is possible to make it difficult to cause damage or the like.

  Furthermore, according to the manufacturing method as described above, it is possible to easily form a fishing line guide in which the reinforcing fibers are oriented in the extending direction of the frame.

  In the above-described configuration, the reinforcing fibers directed in the extending direction of the frame may not be a fiber bundle, but may be configured such that continuous reinforcing fibers along the frame are arranged with a space therebetween. good. Furthermore, the reinforcing fiber may be provided without interruption along the entire frame, but a continuous fiber along the extending direction is provided for each holding part, fixing part, connecting part, etc. of the part constituting the frame. May be. Moreover, the manufacturing method of a flame | frame is not restricted above, A flame | frame can be formed by arbitrary manufacturing methods. In addition, the fiber reinforced resin is not limited to the filamentous material, and a prepreg, a sheet, or a prepreg tape may be laminated or directly disposed in the mold. Moreover, a thermosetting resin and a thermoplastic resin can be used for resin.

  Further, in the present embodiment, the fishing line guide 1 molded in this way has its structural form (material, fiber arrangement form, resin impregnation amount) so that the rigidity value G defined below is 5.0 or more. , Fiber ratio, etc.) and dimensions are set. Here, with reference to FIG. 6, the method of the rigidity value measurement test of the frame 3 of the fishing line guide 1 will be described.

  As shown in FIG. 6, when measuring the rigidity value G of the frame 3, first, fixing the winding portion or the like to the measuring column 72 as if the fixing portion 6 of the frame 3 of the fishing line guide 1 is installed on the fishing rod. It is fixed by means 74. In this fixed state, a tensile load F (kgf) is applied to the top portion 5a of the holding portion 5 in the fishing line insertion direction (matching the axial length direction D of the fishing rod) with respect to the holding portion 5 via a pulling means 76 such as a wire. In addition, the elongation L (mm) of the frame 3 at that time is measured. Then, from the value of the tensile load F and the value of the elongation L, the height H of the frame (guide 1) (from the attachment surface of the fixing portion 6 to the surface of the fishing rod (here, the column 72) to the top of the holding portion 5 Based on the vertical distance (mm) up to 5a), the rigidity value G = (F / L) × H is calculated. In such a measurement test, for example, the tensile load F may be continuously applied at a test speed (tensile speed) of 10 mm / min, and the stiffness may be evaluated with a gradient between 0.2 kgf and 0.8 kgf. .

  All of the at least one-leg type fishing line guides 1 made of fiber reinforced resin having a stiffness value G measured by such a tensile test of 5.0 or more and a specific gravity of 2.0 or less, regardless of the structure or dimensions thereof. The fishing line guide 1 included in the present invention has the above-described effects. Here, the one-leg guide is a type in which one supporting leg portion 7 extends from the holding portion 5 and the fixing portion 6 of this one leg is attached to a fishing rod. A structure in which the leg portion extends is also included. The rigidity value G is preferably 5.0 to 30, more preferably 7.0 or more (preferably 7.0 to 25).

  8 to 11 are graphs showing the results of a tensile test for a fishing line guide having a specific gravity of 2.0 or less and a rigidity value G of 5.0 or more. In this case, the test results of FIG. 8 have the structure shown in FIGS. 1 to 3 (the material is carbon fiber), the guide height H = 60 mm, the holding portion outer diameter = 30 mm, and the frame thickness = 2.0 mm. 9 was conducted on the fishing line guide. The test results of FIG. 9 have the structure shown in FIGS. 1 to 3 (material is carbon fiber), guide height H = 34 mm, holding portion outer diameter = 19 mm, 10 was performed on a fishing line guide having a frame thickness of 1.8 mm, and the test results in FIG. 10 have the structure shown in FIGS. 1 to 3 (the material is carbon fiber), and a guide height H = 21 mm. The test was performed on a fishing line guide having a holding portion outer diameter = 13 mm and a frame thickness = 1.4 mm, and the test result of FIG. 11 has the structure (material is carbon fiber) shown in FIGS. To, those that have been made with respect to the guide height H = 11 mm, the holding outer diameter = 10 mm, the frame thickness = 0.9 mm fishing line guide. As can be seen from these figures, the stiffness value is 5.0 or more.

  Further, the fishing line guide 1 of the present embodiment has its structural form (material, fiber arrangement form, resin impregnation amount, fiber ratio, etc.) and dimensions so that the vibration index fw defined below is 13000 or more. The Here, the method of the vibration index measurement test of the frame 3 of the fishing line guide 1 will be described with reference to FIG.

  As shown in FIG. 12, when measuring the vibration index fw of the frame 3, first, a measurement column (or rod) 82 as if the fixing portion 6 of the frame 3 of the fishing line guide 1 is installed on the fishing rod. It is attached and fixed via fixing means 80 such as a bobbin. Then, in this fixed state, vibration P is applied to the top portion 5a of the holding portion 5 in the fishing line insertion direction (corresponding to the axial length direction D of the fishing rod) with respect to the holding portion 5, for example by a tension jig, and the frame 3 ( The vibration of the soot tube 82) is measured by the acceleration sensor 84. The vibration signal measured by the acceleration sensor is amplified by the amplifier 86 and then sent to the personal computer 88, for example, and the resonance frequency f (Hz) is obtained by vibration analysis software in the personal computer 88. The value of the resonance frequency f and the height H of the frame (guide 1) (the vertical distance (mm) from the mounting surface of the fixing portion 6 to the top portion 5a of the holding portion 5 with respect to the surface of the fishing rod (here, the column 82)) ), The vibration index fw = f × H is calculated. All of the at least one-leg type fishing line guides 1 made of fiber reinforced resin having a vibration index fw of 13,000 or more and a specific gravity of 2.0 or less measured by such a tensile test, regardless of the structure and dimensions thereof, are included in the present invention. Is included.

  FIG. 13 shows a vibration index of a fiber reinforced resin fishing line guide 1 (indicated by a circle in the figure) and a vibration index of a titanium fishing line guide (indicated by a triangle in the figure). Is shown in relation to the outer diameter of the ring guide. Thus, there is an obvious difference between the vibration index of the fiber-reinforced resin fishing line guide 1 according to the present invention and the vibration index of the titanium fishing line guide, and the vibration index 13000 can be distinguished as a boundary.

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

  The present invention relates to the reinforcing fiber constituting the frame of the fishing line guide 1 and may not be configured in a bundle shape. Further, the type of reinforcing fiber oriented in the extending direction of the frame, the modulus of elasticity, the resin impregnation amount, the diameter and the like, the arrangement state, and the like are not limited to the embodiment and can be variously modified. It is. Moreover, the arrangement | positioning form of the reinforcing fiber bundle 10 is not restricted to embodiment mentioned above, For example, as FIG. 7 shows, the fiber bundle 10 may circulate over the perimeter of the holding | maintenance part 5. As shown in FIG.

  Further, the fishing line guide 1 has been described as being fixed to the fishing rod with a thread stopper or the like (configuration having the fixing portion 6). For example, the fishing line guide 1 is configured as a floating guide that is slidably fitted to the fishing rod. May be.

1 fishing line guide 3 frame 5 holding part 6 fixing part 7 connecting part (support leg part)
10 Fiber bundle 20 Guide ring

Claims (5)

A fiber reinforced resin having a ring holding portion through which a fishing line is inserted, a fixing portion fixed to a fishing rod, and a support leg portion for connecting the ring holding portion and the fixing portion to separate the fishing line from the surface of the fishing rod With a frame made of
The frame has a specific gravity of 2.0 or less, and the frame is stretched when a tensile load F is applied to the top of the ring holding portion in the fishing line insertion direction with respect to the top of the ring holding portion with the fixing portion fixed. Its stiffness value G obtained based on L
G = (F / L) × H (H is the height of the frame)
A fishing line guide characterized in that is 5.0 or more. A fiber reinforced resin having a ring holding portion through which a fishing line is inserted, a fixing portion fixed to a fishing rod, and a support leg portion for connecting the ring holding portion and the fixing portion to separate the fishing line from the surface of the fishing rod With a frame made of
The frame has a specific gravity of 2.0 or less, and is based on a resonance frequency f when a vibration is applied to the top of the ring holding portion in the direction of inserting the fishing line with respect to the ring holding portion with the fixing portion fixed. The vibration index fw obtained by
fw = f × H (H is the height of the frame)
A fishing line guide characterized in that is 13,000 or more.   The fishing line guide according to claim 1 or 2, wherein the reinforcing fiber constituting the frame has a tensile elastic modulus of 20 tons / mm or more.   The fishing line guide according to any one of claims 1 to 3, wherein reinforcing fibers are disposed along the longitudinal direction of the support leg portion of the frame.   5. The fishing line guide according to claim 1, wherein the frame has a thickness at a lower end portion of the support leg portion larger than a thickness at a top portion of the holding portion.

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