Fishing line guide
A fishing line guide made of a foam and reinforced resin combination reduces weight and maintains strength by using the resin to protect the foam, enhancing durability and impact resistance.
Patent Information
- Application Number
- JP2024087000
- Authority / Receiving Office
- JP · JP
- Patent Type
- Applications
- Current Assignee / Owner
- Filing Date
- 2024-05-29
- Publication Date
- 2025-12-11
AI Technical Summary
Existing fishing line guides are limited in their ability to reduce weight while maintaining strength and durability.
The fishing line guide is composed of a combination of a foam portion and a reinforced resin portion, with the reinforced resin portion covering at least a portion of the foam portion to protect it and allow for thinner sections, thereby reducing weight while maintaining strength and preventing damage.
The combination of foam and reinforced resin allows for a lighter fishing line guide that is resistant to damage and can absorb impact, achieving both lightweight and durable performance.
Smart Images

Figure 2025179986000001_ABST
Abstract
Description
[Technical Field]
[0001] The present invention relates to a fishing line guide for guiding a fishing line. [Background technology]
[0002] Lightweight fishing line guides attached to the outer periphery of the fishing rod body are required. In Patent Document 1 listed below, fishing line guides are formed from prepreg. However, there is a limit to how much weight can be reduced using this method. [Prior art documents] [Patent documents]
[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2011-205937 Summary of the Invention [Problem to be solved by the invention]
[0004] An object of the present invention is to reduce the weight of a fishing line guide. [Means for solving the problem]
[0005] A fishing line guide according to a first aspect of the present invention is attached to a fishing rod body and guides a fishing line. The fishing line guide includes a foam portion and a reinforced resin portion. The foam portion is made of foamed resin. The reinforced resin portion is made of fiber-reinforced resin. The reinforced resin portion covers at least a portion of the foam portion.
[0006] According to this configuration, the fishing line guide includes a foam portion. This allows the fishing line guide to be easily made lighter. Furthermore, the reinforced resin portion covers at least a portion of the foam portion. This allows the reinforced resin portion to protect the foam portion. This allows the fishing line guide to be made lighter while easily preventing damage to the fishing line guide. Furthermore, because the foam portion can absorb impact, the reinforced resin portion can be made thinner, allowing for easy compatibility between lighter weight and sufficient strength.
[0007] The fishing line guide of the second aspect according to the first aspect of the present invention further comprises a guide ring and a guide frame. The guide ring guides the fishing line. The guide frame holds the guide ring. The guide frame is attached to the fishing rod body. At least a portion of the guide frame is made up of a foam section and a reinforced resin section. With this configuration, since at least a portion of the guide frame is made up of a foam section and a reinforced resin section, the guide frame can be easily made lighter and damage to the guide frame can be easily prevented.
[0008] In a fishing line guide of a third aspect according to the second aspect of the present invention, the guide frame has an attachment leg portion, an annular portion, and a support leg portion. The attachment leg portion is attached to the rod body. The annular portion holds the guide ring. The support leg portion connects the attachment leg portion and the annular portion. At least a portion of the support leg is composed of a foam portion and a reinforced resin portion. With this configuration, since at least a portion of the support leg is composed of a foam portion and a reinforced resin portion, the support leg can be easily made lighter and damage to the support leg can be easily prevented.
[0009] In the fishing line guide of the fourth aspect according to the third aspect of the present invention, the leg tip portion of the support leg that is close to the annular portion is made up of a foam portion and a reinforced resin portion. With this configuration, the leg tip portion of the support leg is made up of a foam portion and a reinforced resin portion, so that the weight of the support leg can be easily reduced.
[0010] In the fishing line guide of the fifth aspect according to the third or fourth aspect of the present invention, the base portion of the support leg that is close to the mounting leg is made up of only the reinforced resin portion. With this configuration, the base portion of the support leg is made up of only the reinforced resin portion out of the foam portion and the reinforced resin portion, so it is easy to ensure the strength of the base portion, which is a location where large forces are likely to act.
[0011] In a fishing line guide of a sixth aspect according to any one of the second to fifth aspects of the present invention, the guide frame has an attachment leg, an annular portion, and a support leg. The attachment leg is attached to the rod body. The annular portion holds a guide ring. The support leg connects the attachment leg and the annular portion. At least a portion of the annular portion is made up of a foam portion and a reinforced resin portion. With this configuration, since at least a portion of the annular portion is made up of a foam portion and a reinforced resin portion, the weight of the annular portion can be easily reduced.
[0012] In the fishing line guide of the seventh aspect according to the sixth aspect of the present invention, the base portion of the annular portion that is close to the support leg is made up of a foam portion and a reinforced resin portion. With this configuration, the base portion of the annular portion is made up of a foam portion and a reinforced resin portion, which makes it easy to reduce the weight of the annular portion.
[0013] In a fishing rod according to the sixth or seventh aspect of the present invention, the top of the annular portion, which is away from the support leg, is made up of only the reinforced resin portion. The top of the annular portion is the tip of the guide frame, and is therefore prone to scratches. If the top of the annular portion is made up of only the reinforced resin portion of the foam portion and the reinforced resin portion, scratches on the top can be effectively prevented.
[0014] In a fishing rod of a ninth aspect according to the second aspect of the present invention, the guide frame has a mounting leg portion, an annular portion, and a support leg portion. The mounting leg portion is attached to the rod body. The annular portion holds a guide ring. The support leg portion connects the mounting leg portion and the annular portion. The mounting leg portion, the annular portion, and the support leg portion are all composed of a foam portion and a reinforced resin portion. With this configuration, since the mounting leg portion, the annular portion, and the support leg portion are all composed of a foam portion and a reinforced resin portion, the guide frame can be easily made lighter and damage to the guide frame can be easily prevented. [Effects of the Invention]
[0015] As described above, the foamed portion and reinforced resin portion make it easy to reduce weight, easily ensure the necessary strength, and easily prevent scratches. Furthermore, the foamed portion can absorb impacts. [Brief explanation of the drawings]
[0016] [Figure 1] 1 is a perspective view of a fishing line guide according to a first embodiment of the present invention; [Figure 2] FIG. 2 is a front view of the fishing line guide as viewed along the center line of the fishing rod body. [Figure 3] FIG. [Figure 4] Enlarged view of part P in Figure 3. [Figure 5] Cross section AA of Figure 2. [Figure 6] 10A is a front view showing a manufacturing method of the guide frame of the fishing line guide, and FIG. 10B is a cross-sectional view of the guide frame. [Figure 7] 5A to 5C are cross-sectional views showing a method of manufacturing the guide frame. [Figure 8] 5A and 5B are cross-sectional views showing a manufacturing method of the guide frame. [Figure 9] 5A and 5B are diagrams showing a manufacturing method of the guide frame, in which FIG. 5A is a front view and FIG. 5B is a side view. [Figure 10] FIG. 6 is a front view of a fishing line guide according to a second embodiment of the present invention. [Figure 11] Cross section B-B of Figure 10. [Figure 12] 10A and 10B are diagrams showing a manufacturing method of the guide frame of the fishing line guide, in which (a) is a front view and (b) is a cross-sectional view. [Figure 13] (a) is an enlarged view of part D in Figure 12(b), (b) is an enlarged view of part E in Figure 12(b), and (c) is an enlarged view of part F in Figure 12(b). [Figure 14] FIG. 10 is a front view of a fishing line guide according to a third embodiment of the present invention. [Figure 15] Cross section CC of Figure 14. [Figure 16] 10A and 10B are diagrams showing a manufacturing method of the guide frame of the fishing line guide, in which (a) is a front view and (b) is a cross-sectional view. [Figure 17] (a) is an enlarged view of part G in Figure 16(b), and (b) is an enlarged view of part H in Figure 16(b). [Figure 18] 10 is a cross-sectional view corresponding to the AA section showing a fishing line guide according to a fourth embodiment of the present invention. FIG. [Figure 19] FIG. 10 is a perspective view of a guide frame of a fishing line guide according to a fifth embodiment of the present invention. [Figure 20] FIG. DETAILED DESCRIPTION OF THE INVENTION
[0017] A fishing line guide according to a first embodiment of the present invention will be described below with reference to the drawings. FIGS. 1 to 5 show a fishing line guide 2 according to the first embodiment, and FIGS. 6 to 9 show a manufacturing method for the fishing line guide 2. The fishing line guide 2 is attached to various fishing rods to which a fishing reel can be attached. The fishing line guide 2 is a so-called outer guide, and is attached movably or immovably to the outer periphery of the rod body 1. The reel can be, for example, a spinning reel or a dual-bearing reel. In a fishing rod to which a spinning reel is attached, the fishing line guide 2 is located below the rod body 1 during use. In a fishing rod to which a dual-bearing reel is attached, the fishing line guide 2 is located above the rod body 1 during use. The fishing line guide 2 in this embodiment is suitable for a fishing rod to which a spinning reel is attached. However, for convenience of explanation, the fishing line guide 2 is illustrated as being located above the rod body 1. The rod body 1 is a so-called blank, made of fiber-reinforced resin. The rod body 1 may be cylindrical, i.e., hollow, or may be solid. The rod body 1 is made up of one or more rod bodies.
[0018] The fishing line guide 2 includes a guide ring 3 and a guide frame 4. The guide ring 3 guides the fishing line. The fishing line passes through the radially inside of the guide ring 3 and slides against the inner peripheral surface of the guide ring 3. The fishing line is guided by the inner peripheral surface of the guide ring 3. The guide ring 3 may be made of various materials, such as SiC. The direction of the ring center line 3a of the guide ring 3 may be parallel to the direction of the rod center line 1a of the rod body 1 (axial direction 100), but in this embodiment, it is inclined toward the rod tip with respect to the axial direction 100 of the rod body 1. The fishing line guide 2 may not include the guide ring 3; for example, the guide frame 4 may directly guide the fishing line.
[0019] The guide frame 4 holds the guide ring 3 and is attached to the fishing rod body 1. The guide frame 4 is plate-shaped and has an annular portion 10 that holds the guide ring 3, mounting legs 12 that are attached to the fishing rod body 1, and support legs 11 that connect the annular portion 10 and the mounting legs 12. The annular portion 10 has a ring mounting hole 20 that penetrates the annular portion 10. The guide ring 3 is inserted into the ring mounting hole 20 and attached to the annular portion 10. That is, the guide ring 3 is attached to the inner peripheral surface of the annular portion 10. The guide ring 3 is preferably adhesively fixed to the annular portion 10. The annular portion 10 and the guide ring 3 are coaxial, and it is preferable that the center line of the annular portion 10 and the ring center line 3a of the guide ring 3 coincide. Therefore, the annular portion 10 is inclined toward the fishing rod tip. The annular portion 10 is circular. The annular portion 10 has a base portion 10a close to the support leg portion 11, a top portion 10b far from the support leg portion 11, and a middle portion 10c located between the base portion 10a and the top portion 10b and connecting the base portion 10a and the top portion 10b. The annular portion 10 is divided into the base portion 10a, the top portion 10b, and the middle portion 10c. The support leg portion 11 is connected to the base portion 10a of the annular portion 10.
[0020] The support leg 11 has a tip portion 11a close to the annular portion 10, a base portion 11b close to the mounting leg 12, and a middle portion 11c located between the tip portion 11a and the base portion 11b and connecting the tip portion 11a and the base portion 11b. The tip portion 11a is connected to the annular portion 10, and the base portion 11b is connected to the mounting leg 12. The support leg 11 is formed so that its width gradually increases from the mounting leg 12 toward the annular portion 10. The support leg 11 has a through hole 21. The through hole 21 is adjacent to the annular portion 10. The through hole 21 has an inverted triangular shape with its apex on the mounting leg 12 side. The through hole 21 is formed from the tip portion 11a to the middle portion 11c. By forming the through hole 21 in the support leg 11, the support leg 11 has a pair of branched legs 22 that branch out to the left and right. The branched leg portions 22 are formed from the leg tip portions 11a to the leg middle portions 11c. The pair of left and right branched leg portions 22 are each connected to the annular portion 10, specifically to the base portion 10a of the annular portion 10. The connection points where the pair of left and right branched leg portions 22 connect to the annular portion 10 are spaced apart from each other in the circumferential direction of the annular portion 10.
[0021] In this embodiment, the mounting leg 12 is fixed to the outer peripheral surface of the rod body 1. The mounting leg 12 is fixed to the rod body 1, for example, by a winding line (not shown). Preferably, an adhesive is applied to the surface of the wound winding line. The mounting leg 12 extends from the root portion 11b of the support leg 11 toward the butt side. The root portion 11b of the support leg 11 is connected to the tip portion of the mounting leg 12 on the rod tip side. The support leg 11 is bent in the radial direction 200 of the rod body 1 relative to the mounting leg 12. The mounting leg 12 is aligned along the axial direction 100 of the rod body 1.
[0022] In this embodiment, the guide frame 4 is entirely composed of a foam portion 30 and a reinforced resin portion 31. The foam portion 30 is made of foamed resin. The reinforced resin portion 31 is made of fiber-reinforced resin. The foam portion 30 has a lower specific gravity than the reinforced resin portion 31. Examples of reinforced fibers include carbon fiber. The foam portion 30 has a foam layer 40. The reinforced resin portion 31 has a first reinforced resin layer 41 and a second reinforced resin layer 42. The guide frame 4 has a multi-layer structure and is composed of a total of three layers. That is, the guide frame 4 is composed of the foam layer 40, the first reinforced resin layer 41, and the second reinforced resin layer 42. The guide frame 4 may have a constant thickness.
[0023] The foam layer 40 is an intermediate layer of the guide frame 4. The foam layer 40 accounts for more than half of the total thickness of the guide frame 4. As described below, the foam layer 40 is formed from a foam sheet 54. The first reinforced resin layer 41 overlaps the tip side of the foam layer 40. The first reinforced resin layer 41 covers at least a portion of the first foamed surface 40a on the tip side of the foam layer 40. The first foamed surface 40a is the surface facing the tip side. In this embodiment, the first reinforced resin layer 41 covers the entire first foamed surface 40a of the foam layer 40. The first reinforced resin layer 41 is a first protective layer that protects the first foamed surface 40a of the foam layer 40. The second reinforced resin layer 42 overlaps the butt side of the foam layer 40. The second reinforced resin layer 42 covers at least a portion of the second foamed surface 40b on the butt side of the foam layer 40. The second foamed surface 40b is the surface opposite to the first foamed surface 40a. The second foamed surface 40b faces the butt side. In this embodiment, the second reinforced resin layer 42 covers the entire second foamed surface 40b on the butt side of the foamed layer 40. The second reinforced resin layer 42 is a second protective layer that protects the second foamed surface 40b of the foamed layer 40. As described below, the first reinforced resin layer 41 and the second reinforced resin layer 42 are formed from prepreg.
[0024] The first reinforced resin layer 41 and the second reinforced resin layer 42 sandwich the foam layer 40 in the axial direction 100 of the rod body 1. The first reinforced resin layer 41 is a surface layer on the tip side of the guide frame 4, and the second reinforced resin layer 42 is a surface layer on the butt side of the guide frame 4. In this way, the guide frame 4 has a three-layer structure consisting of a total of three layers: the foam layer 40, the first reinforced resin layer 41, and the second reinforced resin layer 42. Note that a separate layer may be provided on the tip side (outside) of the first reinforced resin layer 41, and a separate layer may be provided on the butt side (outside) of the second reinforced resin layer 42. The first reinforced resin layer 41 has a first thickness T1, the second reinforced resin layer 42 has a second thickness T2, and the foam layer 40 has a third thickness T3. The first thickness T1 is the same as the second thickness T2, but they may be different. The third thickness T3 is greater than the first thickness T1 and greater than the second thickness T2.
[0025] The first frame surface of the guide frame 4 on the rod tip side is composed of a first reinforced resin layer 41. The foam layer 40 is not exposed on the first frame surface. Furthermore, the second frame surface of the guide frame 4 on the rod butt side is composed of a second reinforced resin layer 42. The foam layer 40 is not exposed on the second frame surface. Meanwhile, the foam layer 40 is exposed on the peripheral side of the guide frame 4, the inner peripheral surface of the annular portion 10 (wall surface of the ring mounting hole 20), and the inner peripheral surface of the support leg portion 11 (wall surface of the through hole 21), without being covered by the first reinforced resin layer 41 or the second reinforced resin layer 42. In other words, the foam layer 40 (foam portion 30) is exposed on the end face of the guide frame 4, without being covered by the reinforced resin portion 31. Note that a coating layer may be provided on the peripheral side of the guide frame 4, the inner peripheral surface of the annular portion 10, and the inner peripheral surface of the support leg portion 11 by applying paint, for example.
[0026] 6 to 9 show a manufacturing method of the guide frame 4. The number of prepregs constituting the first reinforced resin layer 41 and the second reinforced resin layer 42 can be any number, but in this embodiment, as an example, they are formed from two prepregs. The first reinforced resin layer 41 and the second reinforced resin layer 42 may have the same specifications or different specifications, but in this embodiment, they have the same specifications. The two prepregs constituting the first reinforced resin layer 41 and the second reinforced resin layer 42 are each composed of a first prepreg 51 in which the reinforcing fibers are aligned in a first direction and a second prepreg 52 in which the reinforcing fibers are aligned in a second direction perpendicular to the first direction, as shown in FIG. 6(a). The first prepreg 51 and the second prepreg 52 are preferably laminated in advance. It is preferable to form a laminated prepreg 53 by laminating the first prepreg 51 and the second prepreg 52.
[0027] The foam layer 40 is formed from a foam sheet 54. As shown in FIG. 6(b), laminated prepregs 53 are laminated on both sides of the foam sheet 54 to form a composite sheet 55. The composite sheet 55 is preferably strip-shaped. Either the first prepreg 51 or the second prepreg 52 may be exposed on the surface of the composite sheet 55, but it is preferable that the first prepreg 51 or the second prepreg 52 is exposed on both sides of the composite sheet 55. FIG. 6(b) illustrates, as an example, a configuration in which the first prepreg 51 is exposed on both sides of the composite sheet 55. The thickness of the composite sheet 55 is thinner than the thickness (total thickness) of the guide frame 4.
[0028] FIG. 7 shows a cross section of a mold 56. A composite sheet 55 is placed in a cavity 57 of the mold 56. As shown in FIG. 8(a), the composite sheet 55 is aligned with one of the mold 56 sides of the cavity 57. The composite sheet 55 is positioned eccentrically on one of the mold 56 sides in the cavity 57. The composite sheet 55 is thinner than the cavity 57. Therefore, even when the composite sheet 55 is placed in the cavity 57, a space remains in the cavity 57. The composite sheet 55 is then heated in the mold 56. As shown in FIG. 8(b), the foam sheet 54 of the composite sheet 55 undergoes secondary foaming and expands, and the laminated prepreg 53 hardens. The force of the expansion of the foam sheet 54 can be used to mold the composite sheet 55 into the shape of the guide frame 4.
[0029] FIG. 9 shows a molded sheet 58 in which a composite sheet 55 is molded into a predetermined shape. The crosshatching in FIG. 9( a) indicates the portion of the entire width of the molded sheet 58 where the foam sheet 54 (foam portion 30) is provided. In this embodiment, the foam sheet 54 is provided across the entire width of the molded sheet 58, so the crosshatching is applied to the entire molded sheet 58. Multiple guide frames 4 can be manufactured from this molded sheet 58. The shape of the guide frame 4 is indicated by a two-dot chain line in FIG. 9( a). The composite sheet 55 is elongated in a predetermined direction and has a strip shape. The guide frames 4 are illustrated imaginarily as if lined up along the predetermined direction (longitudinal direction) of this strip-shaped composite sheet 55. Multiple guide frames 4 can be formed by punching or cutting this composite sheet 55, for example, in the thickness direction. The ring mounting holes 20 and the through holes 21 may be formed together during the punching process.
[0030] As described above, the fishing line guide in this embodiment includes a guide frame 4 made up of a foam portion 30 and a reinforced resin portion 31. This makes it easy to reduce the weight of the fishing line guide 2 compared to a guide frame 4 made up of only a reinforced resin portion 31. Moreover, because the reinforced resin portion 31 covers the foam portion 30, the foam portion 30 is protected by the reinforced resin portion 31. This effectively prevents damage to the foam portion 30. Furthermore, because the foam portion 30 can absorb impact, the reinforced resin portion 31 can be made thinner, making it easy to achieve both a lightweight guide frame 4 and sufficient strength.
[0031] In particular, the guide frame 4 has a three-layer structure consisting of the foam layer 40, which is the foam portion 30, and the first reinforced resin layer 41 and second reinforced resin layer 42, which are the reinforced resin portion 31, so that the guide frame 4 can be easily manufactured. Furthermore, the first reinforced resin layer 41 and the second reinforced resin layer 42 cover and protect both sides of the foam layer 40 in their entirety, so that damage to the foam layer 40 can be prevented more reliably.
[0032] 10 to 13 show a fishing line guide 2 in a second embodiment. In the first embodiment, the entire guide frame 4 had a three-layer structure consisting of a foam layer 40, a first reinforced resin layer 41, and a second reinforced resin layer 42. In other words, the entire guide frame 4 was composed of a foam portion 30 and a reinforced resin portion 31. In contrast, in this embodiment, only a portion of the guide frame 4 has a three-layer structure, namely, a mixed component portion 60 composed of a foam portion 30 and a reinforced resin portion 31. The remaining portion of the guide frame 4, other than the mixed component portion 60, does not have a foam portion 30 and is a single component portion composed only of the reinforced resin portion 31.
[0033] In detail, the guide frame 4 is made up of a first reinforced resin part 61, a mixed component part 60, and a second reinforced resin part 62. The first reinforced resin part 61, the mixed component part 60, and the second reinforced resin part 62 are aligned along the radial direction 200 of the rod body 1. The first reinforced resin part 61 is provided on the mounting leg part 12 side, and the second reinforced resin part 62 is provided away from the first reinforced resin part 61 in the radial direction 200 of the rod body 1. The mixed component part 60 is provided between the first reinforced resin part 61 and the second reinforced resin part 62, and connects the first reinforced resin part 61 and the second reinforced resin part 62.
[0034] The entire mounting leg 12 is made up of a first reinforced resin portion 61. The support leg 11 is made up of the first reinforced resin portion 61 and a mixed component portion 60. The portion of the support leg 11 close to the mounting leg 12 is made up of the first reinforced resin portion 61, and the portion of the support leg 11 close to the annular portion 10, i.e., the remaining portion not made up of the first reinforced resin portion 61, is made up of the mixed component portion 60. The base portion 11b of the support leg 11 is made up of the first reinforced resin portion 61. The middle portion 11c and the tip portion 11a of the support leg 11 are both made up of the mixed component portion 60.
[0035] The annular portion 10 is composed of a mixed component 60 and a second reinforced resin portion 62. The portion of the annular portion 10 closest to the support leg 11 is composed of the mixed component 60, and the portion of the annular portion 10 farther from the support leg 11, i.e., the remaining portion not made of the mixed component 60, is composed of the second reinforced resin portion 62. The base portion 10a of the annular portion 10 is composed of the mixed component 60. The top portion 10b of the annular portion 10 is composed of the second reinforced resin portion 62. The middle portion 10c of the annular portion 10 is composed of the mixed component 60 and the second reinforced resin portion 62.
[0036] The position of the first boundary portion 63 between the first reinforced resin portion 61 and the mixed component portion 60 may vary. However, it is preferable that the first boundary portion 63 is provided in the support leg portion 11. Therefore, it is preferable that the first reinforced resin portion 61 extends a predetermined length beyond the mounting leg portion 12 to the support leg portion 11, which makes it easy to ensure strength at the boundary portion between the mounting leg portion 12 and the support leg portion 11. From the viewpoint of weight reduction, it is preferable that the first boundary portion 63 is provided closer to the mounting leg portion 12 than to the center of the support leg portion 11 in the radial direction 200 of the rod body 1.
[0037] The position of the second boundary portion 64 between the mixed component portion 60 and the second reinforced resin portion 62 may also vary. However, it is preferable that the second boundary portion 64 be provided in the annular portion 10. In this embodiment, the second boundary portion 64 is provided in the circumferential center of the annular portion 10. Therefore, the half of the circumference of the annular portion 10 that is far from the rod body 1 is made up of the second reinforced resin portion 62, and the half of the circumference of the annular portion 10 that is closer to the rod body 1 is made up of the mixed component portion 60. Note that if the position of the second boundary portion 64 is moved away from the rod body 1, it becomes easier to reduce the weight. If the position of the second boundary portion 64 is moved closer to the rod body 1, the rigidity of the guide frame 4 can be increased, and the rigidity of the annular portion 10 in particular can be increased.
[0038] In the first embodiment, the foam sheet 54 is provided over the entire composite sheet 55, but in this embodiment, the foam sheet 54 is provided over only a portion of the composite sheet 55. The foam sheet 54 is provided only in the central portion of the entire width of the composite sheet 55 that constitutes the mixed component section 60, and the remaining portions are left with only prepreg without the foam sheet 54, and the thickness is adjusted by increasing the number of layers of prepreg.
[0039] FIG. 12 shows the molded sheet 58, and FIG. 13 shows cross-sectional views of each part. The cross-hatching in FIG. 12(a) indicates the portion of the entire width of the molded sheet 58 where the foam sheet 54 is provided. The portion where the foam sheet 54 is provided becomes the mixed-composition portion 60, and the portion where the foam sheet 54 is not provided becomes the first reinforced resin portion 61 and the second reinforced resin portion 62. In this way, the area of the mixed-composition portion 60 can be easily set by adjusting the width of the foam sheet 54. Furthermore, the position of the mixed-composition portion 60 on the guide frame 4 can be easily set by adjusting the position of the foam sheet 54 on the composite sheet 55.
[0040] As described above, in this embodiment, since the first reinforced resin portion 61 extends to the support leg portion 11, it is possible to easily ensure strength at the boundary portion between the support leg portion 11 and the mounting leg portion 12, i.e., at the bent portion. In addition, the top portion 10b of the annular portion 10 is made up of the second reinforced resin portion 62. The top portion 10b of the annular portion 10 is the part of the guide frame 4 farthest from the rod body 1 and is also the part that is most susceptible to damage. By making the top portion 10b of the annular portion 10 out of the second reinforced resin portion 62, it is possible to easily improve the strength of the area near the top portion 10b of the annular portion 10, and to effectively prevent damage to the top portion 10b.
[0041] Figures 14 to 17 show a fishing line guide 2 in the third embodiment. In the second embodiment, the guide frame 4 was composed of a first reinforced resin portion 61, a mixed component portion 60, and a second reinforced resin portion 62, but in this embodiment, the guide frame 4 is composed of the first reinforced resin portion 61 and the mixed component portion 60. The position of the first component boundary portion 63 is the same as in the second embodiment. What differs from the second embodiment is that the entire annular portion 10 is composed of the mixed component portion 60. By making the entire annular portion 10 the mixed component portion 60, it is possible to further reduce the weight.
[0042] In the second embodiment described above, the foam sheet 54 was provided only in the central portion of the entire width of the composite sheet 55, but in this embodiment, the foam sheet 54 is provided except for the portion on the mounting leg 12 side. Fig. 16 shows the molded sheet 58, and Fig. 17 shows cross-sectional views of each portion. The cross-hatching in Fig. 16(a) indicates the portion of the entire width of the molded sheet 58 where the foam sheet 54 is provided. The portion where the foam sheet 54 is provided becomes the mixed constituent portion 60, and the portion where the foam sheet 54 is not provided becomes the first reinforcing resin portion 61. The mixed constituent portion 60 and the first reinforcing resin portion 61 make it easy to achieve both lightweight construction and high rigidity.
[0043] Figure 18 shows a fishing line guide 2 in the fourth embodiment. The only difference from the third embodiment is the configuration of the mounting leg 12. In this embodiment, an uneven portion 70 is provided on the surface of the mounting leg 12 opposite to the surface facing the rod body 1. By providing the uneven portion 70, the attachment to the rod body 1 by the wound line can be made even stronger. A foam portion 30 is provided inside the uneven portion 70. By providing the foam portion 30, the uneven portion 70 can be formed during molding.
[0044] 19 and 20 show the guide frame 4 of a fishing line guide 2 in a fifth embodiment. The guide frame 4 in this embodiment has a two-legged configuration. That is, the guide frame 4 includes an annular portion 10, a first attachment leg 80 provided relative to the annular portion 10 in a first direction 101 in the axial direction 100 of the rod body 1, a first support leg 81 connecting the annular portion 10 and the first attachment leg 80, a second attachment leg 82 provided relative to the annular portion 10 in a second direction 102 in the axial direction 100 of the rod body 1, and a second support leg 83 connecting the annular portion 10 and the second attachment leg 82. The first direction 101 is, for example, the rod tip side, and the second direction 102 is, for example, the rod butt side, but they may be reversed. The first mounting leg 80 extends from the first support leg 81 in a first direction 101, and the second mounting leg 82 extends in the opposite direction from the first mounting leg 80 and extends from the second support leg 83 in a second direction 102. The first support leg 81 and the second support leg 83 each branch out to the left and right.
[0045] The guide frame 4 includes a first thread-like foamed portion 84 and a second thread-like foamed portion 85, which are thread-like. The first thread-like foamed portion 84 is composed of a single foamed string. The first thread end portion 84a and the second thread end portion 84b of the first thread-like foamed portion 84 are aligned with each other. The first thread end portion 84a and the second thread end portion 84b face in the first direction 101. The first thread end portion 84a and the second thread end portion 84b are located at the ends of the first mounting leg portion 80 in the first direction 101. The first thread-shaped foam portion 84 extends from the first thread end portion 84a along the first mounting leg portion 80 in the second direction 102, then extends to the first support leg portion 81, and then spirals around the annular portion 10 one and a half revolutions before returning to the first support leg 81 and heading toward the first mounting leg 80, then returning to the first mounting leg 80 and extending along the first mounting leg 80 in the first direction 101 to reach the second thread end portion 84b.
[0046] The second thread-like foam portion 85 is separate from the first thread-like foam portion 84 and is composed of a single foamed string. The third thread end 85a and fourth thread end 85b of the second thread-like foam portion 85 are aligned with each other. The third thread end 85a and fourth thread end 85b face in the second direction 102. The third thread end 85a and fourth thread end 85b are located at the end of the second mounting leg 82 in the second direction 102. The second thread-like foam portion 85 extends from the third thread end 85a along the second mounting leg 82 in the first direction 101, then to the second support leg 83, and further circumferentially around half the circumference of the annular portion 10, before returning to the second support leg 83 and toward the second mounting leg 82, then returning to the second mounting leg 82 and extending in the second direction 102 along the second mounting leg 82 to reach the fourth thread end 85b.
[0047] The first filamentary foam portion 84 and the second filamentary foam portion 85 are each composed of a foamed string. The two foamed strings are placed in the mold 56 and the first filamentary foam portion 84 and the second filamentary foam portion 85 are formed by secondary foaming of the foamed strings within the mold 56. By using the foamed strings in this manner, the first filamentary foam portion 84 and the second filamentary foam portion 85, which are the foamed portion 30, can be easily formed, and can easily be adapted to guide frames 4 of various shapes.
[0048] The reinforced resin portion 31 encases the first thread-shaped foam portion 84 and the second thread-shaped foam portion 85. In the figure, the reinforced resin portion 31 is indicated by a two-dot chain line. The reinforced resin portion 31 is positioned outside the first thread-shaped foam portion 84 and the second thread-shaped foam portion 85. The first thread-shaped foam portion 84 and the second thread-shaped foam portion 85 are entirely covered by the reinforced resin portion 31. The reinforced resin portion 31 is formed from a synthetic resin mixed with short fibers having a length of 1 mm or less. The short fibers are, for example, carbon fibers. The length of the short fibers is particularly preferably 0.5 mm or less. The guide frame 4 can be integrally formed by injection molding by injecting the synthetic resin mixed with short fibers into a mold 56 containing two foam strings.
[0049] Furthermore, the guide frame 4 may be divided into a first part having the first thread-like foam portion 84 and a second part having the second thread-like foam portion 85, which are molded separately, and after each part is molded, the two parts are joined together to form the guide frame 4. [Explanation of symbols]
[0050] 1 Rod body 1a Rod center line 2 Fishing Line Guide 3 Guide Ring 3a Ring centerline 4 Guide Frame 10 Annular section 10a Base 10b Top 10c Midsection 11 Support legs 11a Leg end 11b Base 11c mid leg 12 Mounting feet 20 Ring mounting hole 21 Through hole 22 Branch leg 30 Foaming section 31 Reinforced resin part 40 Foam layer 40a First foam surface 40b Second foam surface 41 1st reinforced resin layer 42 Second reinforced resin layer 51 First prepreg 52 Second prepreg 53 Laminated prepreg 54 Foam Sheet 55 Composite Sheet 56 Mold 57 Cavity 58 Molded Sheet 60 Mixed components 61 1st reinforced resin part 62 2nd reinforced resin part 63 1st configuration boundary 64 2nd configuration boundary 70 Uneven part 80 First mounting leg 81 1st support leg 82 Second mounting leg 83 Second support leg 84 First thread-shaped foam section 84a 1st thread end 84b 2nd thread end 85 Second filamentous foam section 85a 3rd thread end 85b 4th thread end 100 axial direction 101 1st direction 102 Second direction 200 radial T1 First thickness T2 Second thickness T3 Third thickness
Claims
1. A fishing line guide attached to a fishing rod body to guide a fishing line, a foam portion made of foam resin; a reinforced resin portion made of fiber reinforced resin and covering at least a portion of the foam portion; A fishing line guide comprising:
2. a guide ring for guiding the fishing line; a guide frame that holds the guide ring and is attached to the fishing rod body; Furthermore, 2. The fishing line guide according to claim 1, wherein at least a portion of said guide frame is constructed from said foam portion and said reinforced resin portion.
3. The guide frame is An attachment leg attached to the rod body; an annular portion that holds the guide ring; a support leg portion connecting the mounting leg portion and the annular portion; and 3. The fishing line guide of claim 2, wherein at least a portion of said support leg is constructed from said foam portion and said reinforced resin portion.
4. 4. The fishing line guide according to claim 3, wherein the tip portions of the support legs that are closer to the annular portion are made up of the foam portion and the reinforced resin portion.
5. 5. The fishing line guide according to claim 3, wherein a base portion of said support leg portion that is close to said mounting leg portion is made up solely of said reinforced resin portion.
6. The guide frame is An attachment leg attached to the rod body; an annular portion that holds the guide ring; a support leg portion connecting the mounting leg portion and the annular portion; and 5. The fishing line guide according to claim 2, wherein at least a portion of said annular portion is made up of said foam portion and said reinforced resin portion.
7. 7. The fishing line guide according to claim 6, wherein a base portion of said annular portion that is closer to said support leg portion is made up of said foam portion and a reinforced resin portion.
8. 7. The fishing line guide according to claim 6, wherein a top portion of said annular portion, which is remote from said support leg portion, is formed solely from said reinforced resin portion.
9. The guide frame is An attachment leg attached to the rod body; an annular portion that holds the guide ring; a support leg portion connecting the mounting leg portion and the annular portion; and 3. The fishing line guide of claim 2, wherein the mounting leg portion, the annular portion, and the support leg portion are all constructed from the foam portion and the reinforced resin portion.
10. The foam portion has a foam layer, The reinforced resin portion is A first reinforced resin layer covering at least a portion of the rod tip side of the foam layer; A second reinforced resin layer covering at least a portion of the butt side of the foam layer; 5. The fishing line guide according to claim 1, further comprising:
Citation Information
Patent Citations
Fishing line guide and method for producing the same
JP2011205937A