Fishing rod
By designing annular grooves made of reinforced fiber resin and reinforced fibers extending side by side at the tip of the fishing rod, the problems of low sensitivity of the fishing rod and inconvenient loading and unloading of fishing line are solved, and the effect of high sensitivity and convenient loading and unloading is achieved.
Patent Information
- Application Number
- CN202411913538.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2023-12-26
- Filing Date
- 2024-12-24
- Publication Date
- 2025-06-27
AI Technical Summary
The inertia at the tip of the existing fishing rod is too high, resulting in a decrease in sensitivity, making it difficult to instantly sense the touch of the fish, and the fishing line connections are complex in structure and inconvenient to load and unload.
A fishing line connecting part composed of reinforcing fiber resin is designed. The annular groove extending along the circumference of the fishing rod main body is light and compact, which improves the sensitivity of the fishing rod, and adjusts the rigidity of the fishing line connecting part through the reinforcing fiber extending side by side at 45 degrees.
It improves the sensitivity of the fishing rod, makes the fishing line easy and practical connection and loading and unloading, and avoids sharp changes in the local state of the fishing rod.
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Figure CN120203002A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the structure of a fishing rod, and particularly to the structure of the tip portion of a fishing rod. Background Art
[0002] A fishing rod (typically an extendable rod) has a fishing line connected to its tip portion. During actual fishing, the fishing line is required to be firmly connected to the tip portion of the extendable rod and to be easily detachable and attachable. To meet this requirement, conventionally, a fishing line connector has been provided at the tip portion of the extendable rod (see, for example, Patent Document 1 and Patent Document 2).
[0003] However, in bait fishing (catfish fishing), stream fishing, etc., it is important for the angler to recognize the situation of having caught a fish. Therefore, the following has been proposed: forming a portion with a large inertia at the tip portion of the extendable rod, and using the inertia to transmit the vibration conducted from the fishing line to the rod tail (the angler's hand side) when a fish is caught (see, for example, Patent Document 3).
[0004] Patent Document 1: Japanese Patent Laid-Open No. 2-403.
[0005] Patent Document 2: Japanese Patent Laid-Open No. 9-74953.
[0006] Patent Document 3: Japanese Patent No. 6333616.
[0007] On the other hand, during actual fishing, an angler sometimes hopes to instantaneously sense the so-called touch of a fish (i.e., the target fish hitting the fishing tackle) rather than recognizing that a fish has been caught. The ease of sensing the touch of the fishing rod is particularly referred to as the "sensitivity of the fishing rod", and depending on the type of the target fish, a highly sensitive fishing rod may sometimes be required.
[0008] In the fishing rods disclosed in Patent Document 1 and Patent Document 2, the fishing line connector is configured as a separate component from the fishing rod and is attached to the tip of the fishing rod. In such a structure, the number of parts of the fishing rod increases, and the weight (i.e., inertia) of the tip portion of the fishing rod becomes large. That is, the inertia of the tip portion of the fishing rod becomes large, and the sensitivity of the fishing rod decreases. Patent Document 3 does not disclose a fishing line connector, but discloses a structure in which a portion with high rigidity and large weight is integrally formed at the tip portion of the fishing rod. However, the outer dimensions of this portion are large and the inertia is also extremely large, so the sensitivity of the fishing rod is significantly reduced.
[0009] The fishing rods disclosed in the above-mentioned patent documents have a structure in which it is difficult for an angler to feel the touch of a fish (difficult to improve the sensitivity of the fishing rod), and do not meet the requirement for high sensitivity of the fishing rod. Also, in the fishing rod disclosed in Patent Document 3, the mechanical strength of the tip portion (particularly the tensile strength in the longitudinal direction of the fishing rod) becomes extremely large, and there is also a problem that the state of the fishing rod changes discontinuously. Summary of the Invention
[0010] Accordingly, an object of the present invention is to provide a fishing rod that can instantaneously sense the touch of a fish (high sensitivity), has a fishing line firmly connected thereto and is easy to attach and detach, and whose state does not change abruptly locally.
[0011] (1) To solve the above problems, a fishing rod according to a first aspect of the present invention includes a fishing rod main body and a fishing line connecting portion provided on the fishing rod main body for connecting a fishing line. The fishing line connecting portion has an annular groove extending in the circumferential direction of the fishing rod main body and is integrally formed with the fishing rod main body from a resin including reinforcing fibers.
[0012] According to this structure, the fishing line connecting portion is integrally formed with the fishing rod main body, and the fishing line connecting portion is made of a resin containing reinforcing fibers. Therefore, the fishing line connecting portion is lightweight and compact, and the annular groove is also formed at the same time. As a result, the sensitivity of the fishing rod is improved. Further, since the annular groove extends in the circumferential direction of the fishing rod main body, the fishing line can be easily and firmly connected to the annular groove, and the attachment and detachment of the fishing line are also easy. Furthermore, since the fishing line connecting portion is lightweight and compact, the state of the fishing rod does not change abruptly locally at the fishing line connecting portion.
[0013] (2) In a fishing rod according to a second aspect of the first aspect of the present invention, the reinforcing fibers extend side by side in a direction of 45 degrees with respect to the axial direction of the fishing rod main body.
[0014] In this structure, it is possible to prevent the axial rigidity of the fishing line connecting portion from becoming extremely large, that is, the tensile strength in the long side direction of the tip portion of the fishing rod from becoming extremely large. Therefore, the state of the fishing rod does not change abruptly and discontinuously locally.
[0015] (3) In a fishing rod according to a third aspect of either the first aspect or the second aspect of the present invention, the fishing line connecting portion is made of a prepreg, and the prepreg includes a resin containing the reinforcing fibers.
[0016] In this structure, it is easy to fire the fishing line connecting portion.
[0017] (4) In a fishing rod according to a fourth aspect of any one of the first aspect to the third aspect of the present invention, the fishing line connecting portion includes a first connecting portion and a second connecting portion that are arranged side by side at a predetermined interval in the axial direction of the fishing rod main body, and the annular groove is partitioned by the first connecting portion, the second connecting portion, and the fishing rod main body.
[0018] In this structure, the annular groove is partitioned between the first connecting portion and the second connecting portion by forming the first connecting portion and the second connecting portion. Therefore, no special processing is required to form the annular groove.
[0019] (5) In the fishing rod according to the fifth aspect of the fourth aspect of the present invention, the first connecting portion is composed of a first prepreg, the first prepreg includes a resin containing a first reinforcing fiber, the second connecting portion is composed of a second prepreg, and the second prepreg includes a resin containing a second reinforcing fiber.
[0020] In this structure, it is possible to make the rigidity on both sides of the annular groove different at the fishing line connecting portion. Thus, the fishing line connecting portion can be made lighter, and the sensitivity of the fishing rod can be further improved.
[0021] (6) In the fishing rod according to the fifth aspect of the fourth aspect of the present invention, at least one of the first reinforcing fiber and the second reinforcing fiber extends side by side in a direction of 45 degrees with respect to the axial direction of the fishing rod main body.
[0022] In this structure, it is easy to adjust the rigidity in the design of the fishing line connecting portion. Therefore, the degree of freedom in the design of the state and sensitivity of the fishing rod is increased.
[0023] (7) In the fishing rod according to the seventh aspect of the fifth aspect or the sixth aspect of the present invention, the first reinforcing fiber is a fiber different from the second reinforcing fiber.
[0024] In this structure, for example, the specific gravities of the first reinforcing fiber and the second reinforcing fiber can be made different. Thus, the sensitivity of the fishing rod can be further improved.
[0025] (8) In the fishing rod according to any one of the first aspect to the seventh aspect of the present invention, the length of the fishing rod main body in the axial direction along the fishing line connecting portion is 10 mm or more and 15 mm or less.
[0026] In this structure, the size of the fishing line connecting portion is extremely small and lightweight, so the sensitivity of the fishing rod is improved. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 is a front view of a fishing rod 20 according to an embodiment of the present invention.
[0028] Figure 2 is Figure 1 an enlarged view of the main part.
[0029] Figure 3 is a perspective view of a fishing line connecting portion 30 according to an embodiment of the present invention.
[0030] Figure 4 is a diagram schematically showing a forming method of the fishing line connecting portion 30.
[0031] Figure 5 Regarding the forming method of the fishing line connecting portion 30, a modified example of the present embodiment is schematically shown. Detailed Embodiment
[0032] Hereinafter, preferred embodiments of the present invention will be described with appropriate reference to the accompanying drawings. It goes without saying that this embodiment is just one mode of the fishing rod of the present invention, and the embodiment can also be changed within the scope of not changing the gist of the present invention.
[0033] Figure 1 It is a front view of the fishing rod 20 according to an embodiment of the present invention.
[0034] The fishing rod 20 is composed of five blanks (blank 21 to blank 25) with different outer diameters and is assembled in a so-called telescopic manner. The blanks 21 to 25 (corresponding to the "fishing rod main body" described in the claims) are also respectively called "sections", and the outer diameters are called the first section 21, the second section 22 from thin to thick. The first section 21 is the section that constitutes the tip of the rod, and its outer diameter is the smallest among all the sections. The fifth section 25 is particularly called the "base section", and the fourth section 24 adjacent to the base section is particularly called the "sub-base section". In this embodiment, the fishing rod 20 is called a so-called telescopic rod and is used for stream fishing, for example. In addition, the number of blanks is not particularly limited and is optimally designed appropriately according to the target fish.
[0035] In this figure, reference numeral 27 represents the center of the fishing rod 20 (each section), and the direction along this center is the axial direction. In this specification, the direction along the center of the fishing rod 20 is called the axial direction 27. Reference numeral 28 represents the front side of the axial direction 27, and reference numeral 29 represents the rear side of the axial direction 27.
[0036] The first section 21 to the base section 25 are formed according to a known method. For example, a resin sheet (prepreg) reinforced with reinforcing fibers (typically carbon fibers) is cut into a predetermined shape and wound around a mandrel. A predetermined heat treatment is performed on it to fire the cylindrical first section 21 to the base section 25. In this embodiment, the tip portion (the end portion on the front side 28 of the axial direction 15) of the first section 21 has a solid structure. In addition, the whole of the first section 21 can also be a solid structure or a hollow structure. The outer shape of each of the first section 21 to the base section 25 forms a predetermined taper. This taper is appropriately designed according to the setting of the state of the fishing rod and the type of target fish, etc.
[0037] The first section 21 can be smoothly retracted into the interior of the second section 22. The outer diameter of the rear end of the first section 21 is larger than that of the tip. In addition, the rear end diameter of the first section 21 is set to be larger than the tip diameter of the second section 22. Therefore, when the first section 21 is pulled out from the second section 22, the rear end portion of the first section 21 is fitted in a state where it overlaps with the tip portion of the second section 22 by a predetermined dimension, and thus, the two are fixed. In addition, the relationship between the second section 22 and the third section 23, the relationship between the third section 23 and the sub-base section 24, and the relationship between the sub-base section 24 and the base section 25 are the same as the relationship between the first section 21 and the second section 22. In the present embodiment, the handle 26 is provided at the rear end portion of the base section 25. The handle 26 can also be omitted.
[0038] The fishing rod of the present embodiment is characterized by the structure of the first section 21. Specifically, it is that a fishing line connecting portion 30 for connecting a fishing line is provided at the tip portion of the first section 21, that is, at the end portion on the front side 28 of the axial direction 15. That is, the fishing line connecting portion 30 is made of a resin reinforced by the aforementioned carbon fiber and is integrally formed with the first section 21.
[0039] Figure 2 is Figure 1 an enlarged view of the main part of Figure 3 and is a perspective view of the fishing line connecting portion 30. These figures show in detail the structure of the fishing line connecting portion 30.
[0040] As shown in these figures, the tip portion of the first section 21 has a small diameter portion 31, a large diameter portion 33, and a diameter-expanded portion 32. The small diameter portion 31, the diameter-expanded portion 32, and the large diameter portion 33 are successively continuous from the rear side 29 of the first section 21. The small diameter portion 31 and the large diameter portion 33 are cylindrical, the outer diameter 44 of the small diameter portion 31 can be set to be 0.6 mm or more and 1.8 mm or less, and the outer diameter 45 of the large diameter portion 33 can be set to be 0.8 mm or more and 4.0 mm or less.
[0041] A ring-shaped groove 35 is provided at a predetermined position on the front side 28 of the large diameter portion 33. A part of the large diameter portion 33 is reduced in diameter to form this ring-shaped groove 3. The ring-shaped groove 35 opens to the outer peripheral surface 36 of the large diameter portion 33 and extends along the circumferential direction of the large diameter portion 33 (that is, the circumferential direction of the first section 21). The distance 40 from the tip end surface 39 of the large diameter portion 33 (that is, the tip end surface of the first section 21) to the ring-shaped groove 35 can be set to be 0.3 mm or more and 8.0 mm or less. The width 37 of the ring-shaped groove 35 can be set to be 0.3 mm or more and 4.0 mm or less. The depth 38 of the ring-shaped groove 35 can be set to be 0.1 mm or more and 1.5 mm or less. The length 41 (the length along the axial direction 27) of the fishing line connecting portion 30 is set to 12 mm in the present embodiment and is preferably set to be 10 mm or more and 15 mm or less.
[0042] The diameter-expanded portion 32 is disposed between the small-diameter portion 31 and the large-diameter portion 33, and the two are continuous along the axial direction 27. Therefore, the diameter-expanded portion 32 has a frustum shape. The diameter-expanded portion 32 has a length of 2.0 mm or more and 15.0 mm or less, and the taper ratio formed by the outer peripheral surface 34 of the diameter-expanded portion 32 is set to 20 / 1000 or more and 70 / 1000 or less.
[0043] Figure 4 It is a diagram schematically showing the forming method of the fishing line connecting portion 30.
[0044] In the present embodiment, the fishing line connecting portion 30 is formed by the process shown in FIGS. (a) to (d) of this figure.
[0045] As shown in FIG. (a) of this figure, the prepreg 51 cut into a predetermined shape is wound around a mandrel (not shown). The prepreg 51 is a member formed in a sheet shape by impregnating a thermosetting resin (typically an epoxy resin) into carbon fibers (corresponding to the "reinforcing fibers" described in the claims). The first section 21 is formed by means of the prepreg 51.
[0046] The prepreg 52 (corresponding to the "prepreg" described in the claims) is disposed at the end of the prepreg 51, that is, at the end on the front side 28 in the axial direction 15. The prepreg 52 is a member formed in a sheet shape by impregnating a thermosetting resin (typically an epoxy resin) into carbon fibers (corresponding to the "reinforcing fibers" described in the claims). The prepreg 52 is previously cut into a trapezoidal shape shown in FIG. (a) of this figure. The prepreg 52 is disposed so as to overlap the prepreg 51 from the bottom side 53 and wound in such a manner that the upper side 43 becomes the outermost layer. At this time, the prepreg 52 is disposed such that the carbon fibers 54 contained in the prepreg 52 are along a direction of 45 degrees with respect to the axial direction 27.
[0047] If the prepreg 52 is disposed in this way and wound around the prepreg 51, then as shown in FIG. (b) of this figure, the carbon fibers 54 cross each other and are arranged side by side in a direction at an angle of 45 degrees with respect to the axial direction 27. The effects of disposing the carbon fibers 54 in this way will be described later.
[0048] As shown in FIG. (c) of this figure, a forming tape (not shown in the figure) is wound so as to cover the prepreg 51 and the prepreg 52, and the shape of the first section 21 to be formed is formed. In this state, it is heated for a predetermined time at a predetermined ambient temperature, and thus, the rod-shaped body shown in this figure is fired, and the first section 21 and the fishing line connecting portion 30 are integrally formed. At this time, it is obvious that the aforementioned carbon fibers 54 extend side by side in a direction at 45 degrees with respect to the axial direction 27.
[0049] After that, a ring-shaped groove 35 is provided at a predetermined position of the first section 21. Specifically, the first section 21 is machined (cutting process) to form the ring-shaped groove 35. Since the first section 21 is machined, the position, width 37, and depth 38 of the ring-shaped groove 35 (refer to Figure 2 ) can be easily and accurately machined. Finally, grinding and painting are performed, and the first section 21 is completed together with the fishing line connecting portion 30.
[0050] In this fishing rod 20, a fishing line connecting portion 30 with a ring-shaped groove 35 machined is integrally formed with the first section 21. Since the fishing line connecting portion 30 is made of a resin containing carbon fiber, the fishing line connecting portion 30 is designed to be lightweight and compact, and the sensitivity of the fishing rod 20 is improved. Also, as Figure 2 and Figure 3 show, since the ring-shaped groove 35 extends along the circumferential direction of the first section 21, the fishing line can be easily and surely connected to the ring-shaped groove 35, and the attachment and detachment of the fishing line are also easy. Furthermore, since the fishing line connecting portion 30 is lightweight and compact, there is an advantage that the state of the first section 21 (and even the fishing rod 20) does not change sharply locally at the portion where the fishing line connecting portion 30 is provided.
[0051] In the present embodiment, as Figure 4 shows, the aforementioned carbon fiber 54 extends side by side in a direction of 45 degrees with respect to the axial direction 27 of the first section 21. Thereby, the rigidity of the fishing line connecting portion 30 in the axial direction 27, particularly the tensile strength in the long side direction of the tip portion of the first section 21, is prevented from becoming extremely large. As a result, the state of the first section (and even the fishing rod 20) does not change sharply discontinuously locally.
[0052] In the present embodiment, a prepreg 52 is used in the forming of the fishing line connecting portion 30. Therefore, as Figure 4 shows, the fishing line connecting portion 30 can be easily fired together with the first section 21 by simply winding the prepreg 52 around the prepreg 51 constituting the first section 21.
[0053] In the present embodiment, as Figure 4 shows, the length 41 of the fishing line connecting portion 30 is 10 mm or more and 15 mm or less. Therefore, the fishing line connecting portion 30 is extremely compact and lightweight, and thus the sensitivity of the first section 21 (and even the fishing rod 20) is further improved.
[0054] Next, a modification of the present embodiment will be described.
[0055] Figure 5 Regarding the forming method of the fishing line connecting portion 30, it is a diagram schematically showing a modification of the present embodiment.
[0056] The forming method of the fishing line connecting portion 30 in this modification is different from that of the fishing line connecting portion 30 in the present embodiment in that, in the present embodiment, the fishing line connecting portion 30 is formed by means of a single prepreg 52 and machining. In contrast, in this modification, the fishing line connecting portion 30 is constituted by two prepregs 55 (corresponding to the "first prepreg" described in the claims) and a prepreg 56 (corresponding to the "second prepreg" described in the claims). That is, in this modification, machining is not required.
[0057] In this modification, as shown in the figure, after the prepreg 51 cut into a predetermined shape is wound around the aforementioned mandrel, the prepregs 55 and 56 are arranged at the ends of the prepreg 51 (the ends on the front side 28 in the axial direction 15). These prepregs 55 and 56 are also, like the prepreg 52, members formed in a sheet shape by impregnating a thermosetting resin (typically an epoxy resin) into carbon fibers (corresponding to the "reinforcing fibers" described in the claims).
[0058] The prepreg 55 is pre-cut into a rectangular shape, and the prepreg 56 is pre-cut into a trapezoidal shape. The prepreg 55 is arranged and wound in such a way that the short side 57 overlaps on the prepreg 51. The prepreg 56 is arranged in such a way that it overlaps on the prepreg 51 from the bottom side 58, and is wound in such a way that the upper side 59 becomes the outermost layer. At this time, the prepreg 55 is arranged in alignment with the end of the prepreg 51, that is, the end on the front side 28 in the axial direction 15, and the prepreg 56 is arranged at a predetermined interval 63 from the prepreg 55 in the axial direction 27. This interval 63 corresponds to the width 37 of the aforementioned annular groove 35 (refer to Figure 2 ).
[0059] The prepregs 55 and 56 are arranged such that the carbon fibers 54 contained therein are along a direction of 45 degrees with respect to the axial direction 27. Therefore, in the state where the prepregs 55 and 56 are wound around the prepreg 51, the carbon fibers 54 cross each other and are arranged side by side in a direction at an angle of 45 degrees with respect to the axial direction 27.
[0060] A forming tape (not shown in the figure) is wound in such a way as to cover the prepreg 51, the prepregs 55 and 56 to form the shape of the first section 21 to be formed. Further, it is heated at a predetermined temperature for a predetermined time, so that the first section 21 is fired simultaneously with the fishing line connecting portion 30. In this modification, the fishing line connecting portion 30 includes a first connecting portion 61 and a second connecting portion 62. The first connecting portion 61 is formed by the prepreg 55 (refer to Figure 4 (d)), and the second connecting portion 62 is formed by the prepreg 56 (refer to Figure 4(d)). In this state, the aforementioned carbon fibers 54 extend side by side in a direction of 45 degrees with respect to the axial direction 27. By forming the first connecting portion 61 and the second connecting portion 62, a groove is formed between the two at the same time. This groove has the same shape as the aforementioned annular groove 35. After that, grinding and painting are performed on the fired first section 21.
[0061] In this modification, the aforementioned first connecting portion 61 and the second connecting portion 62 are formed independently, so that an annular groove 35 is demarcated between the two. Therefore, no other special processing is required for the machining to form the annular groove 35.
[0062] In this modification, the reinforcing fibers contained in the prepreg 55 and the prepreg 56 are the same carbon fiber. However, the physical properties (typically the elastic modulus) of the carbon fibers contained in the prepreg 55 (corresponding to the "first reinforcing fiber" described in the claims) and the physical properties of the carbon fibers contained in the prepreg 56 (corresponding to the "second reinforcing fiber" described in the claims) can also be different. For example, the carbon fibers contained in the prepreg 55 can be PAN (polyacrylonitrile)-based carbon fibers with excellent tensile strength, and the carbon fibers contained in the prepreg 56 can be Pitch (a by-product of coal, petroleum, and coal tar)-based carbon fibers with a high elastic modulus. In addition, when the reinforcing fibers contained in both the prepreg 55 and the prepreg 56 are PAN-based carbon fibers, for example, it can also be designed such that the carbon fibers contained in the prepreg 55 are fibers with an elastic modulus of 5 t / mm2 or more and 46 t / mm2 or less, and the carbon fibers contained in the prepreg 56 are fibers with an elastic modulus of 5 t / mm2 or more and 50 t / mm2 or less, and the two are different from each other.
[0063] In this way, due to the different physical properties of the reinforcing fibers or the different types of prepregs, in the design of the fishing line connecting portion 30, the rigidity of the front side 28 and the rear side 29 of the annular groove 35 can be made different, achieving further weight reduction of the fishing line connecting portion 35. As a result, the sensitivity of the fishing rod 20 can be further improved. In addition, the same effect can also be achieved when the resin contained in the prepreg 55 is different from the resin contained in the prepreg 56.
[0064] Furthermore, the types of reinforcing fibers contained in the prepreg 55 and the prepreg 56 can also be different. For example, it can also be that the reinforcing fibers contained in the prepreg 55 are carbon fibers, and the reinforcing fibers contained in the prepreg 56 are other reinforcing fibers (such as glass fibers) instead of carbon fibers. In addition, for either the prepreg 55 or the prepreg 56, the reinforcing fibers can be other reinforcing fibers instead of carbon fibers.
[0065] In this case, since the specific gravity of carbon fibers and the specific gravity of glass fibers are different, in the design of the fishing line connecting portion 30, the first connecting portion 61 and the second connecting portion 62 can be adjusted (refer to Figure 4(d)) Weight balance. Preferably, the specific gravity of the reinforcing fibers contained in the first connecting portion 61 (the reinforcing fibers disposed on the front side 28 of the fishing line connecting portion 30) is set to be greater than the specific gravity of the reinforcing fibers contained in the second connecting portion 62. Thereby, the sensitivity of the fishing rod can be further improved.
[0066] In this modification, the reinforcing fibers such as the carbon fibers extend side by side in a direction at 45 degrees with respect to the axial direction 27, but at least one of the carbon fibers and the other reinforcing fibers may extend side by side in a direction at 45 degrees with respect to the axial direction 27. In this case, preferably, the reinforcing fibers contained in the second connecting portion 62 (the reinforcing fibers disposed on the rear side 29 of the fishing line connecting portion 30) extend side by side in a direction at 45 degrees with respect to the axial direction 27. By adopting such a configuration, it becomes easy to adjust the rigidity in the design of the fishing line connecting portion 30. As a result, the degree of freedom in the design of the state and sensitivity of the fishing rod 20 is increased.
[0067] Description of Reference Numerals
[0068] 20 ··· Fishing rod
[0069] 21 ··· First section
[0070] 27 ··· Axial direction
[0071] 28 ··· Front side
[0072] 29 ··· Rear side
[0073] 30 ··· Fishing line connecting portion
[0074] 31 ··· Small-diameter portion
[0075] 32 ··· Diameter-expanded portion
[0076] 33 ··· Large-diameter portion
[0077] 34 ··· Outer peripheral surface
[0078] 35 ··· Annular groove
[0079] 36 ··· Outer peripheral surface
[0080] 37 ··· Width
[0081] 38 ··· Depth
[0082] 39 ··· Tip end surface
[0083] 40 ··· Distance
[0084] 41 ··· Length
[0085] 51 ··· Prepreg
[0086] 52 ··· Prepreg
[0087] 55 ··· Prepreg
[0088] 56 ··· Prepreg
[0089] 61 ··· First connecting part
[0090] 62 ··· Second connecting part
[0091] 63 ··· Spacing.
Claims
1. A fishing rod comprising a fishing rod body and a fishing line connecting portion provided on the fishing rod body and connected with a fishing line, wherein: The fishing line connecting portion has an annular groove extending in the circumferential direction of the fishing rod body, and is formed integrally with the fishing rod body from a resin containing reinforcing fibers.
2. The fishing rod according to claim 1, characterized in that The reinforcing fibers extend side by side in a direction of 45 degrees with respect to the axial direction of the fishing rod body.
3. The fishing rod according to claim 1 or 2, characterized in that: The fishing line connecting portion is formed of a prepreg, and the prepreg includes a resin containing the reinforcing fiber.
4. The fishing rod according to claim 1 or 2, characterized in that: The fishing line connecting portion includes a first connecting portion and a second connecting portion which are arranged in parallel at a predetermined interval along the axial direction of the fishing rod body. The annular groove is defined by the first connecting portion, the second connecting portion, and the fishing rod body.
5. The fishing rod according to claim 4, characterized in that The first connection portion is composed of a first prepreg, wherein the first prepreg includes a resin containing a first reinforcing fiber. The second connection portion is formed of a second prepreg including a resin containing second reinforcing fibers.
6. The fishing rod according to claim 5, characterized in that At least one of the first reinforcing fiber and the second reinforcing fiber extends in parallel in a direction of 45 degrees with respect to the axial direction of the fishing rod body.
7. The fishing rod according to claim 5 or 6, characterized in that: The first reinforcing fibers are fibers different from the second reinforcing fibers.
8. The fishing rod according to claim 1 or 2, characterized in that: The length of the fishing line connecting portion along the axial direction of the fishing rod body is not less than 10 mm and not more than 15 mm.
Citation Information
Patent Citations
Cooker with heater for heating food
JP1988033616B2
Fishing line fixture and fishing rod
JP1997074953A