Fishing rod
By integrating the front and rear rod blanks directly to the reel seat, the fishing rod achieves weight reduction, shortened assembly time, and improved sensitivity through direct vibration transmission, addressing the issues of conventional designs.
Patent Information
- Application Number
- PCT/JP2024/028473
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2023-12-26
- Filing Date
- 2024-08-08
- Publication Date
- 2025-07-03
AI Technical Summary
Conventional fishing rods require multiple parts and adhesion steps, leading to increased weight, assembly time, and decreased sensitivity due to the use of spacers between the rod blank and reel seat.
The fishing rod design integrates the front and rear rod blanks directly to the reel seat, eliminating the need for a spacer and reducing the number of parts, while ensuring direct vibration transmission for improved sensitivity.
This configuration reduces weight, shortens assembly time, and enhances sensitivity by directly transmitting vibrations from the rod blanks to the reel seat, thereby improving overall strength and reducing costs.
Smart Images

Figure JP2024028473_03072025_PF_FP_ABST
Abstract
Description
fishing rod
[0001] CROSS REFERENCE This application claims priority to Japanese Patent Application No. 2023-219180 (filed December 26, 2023), the contents of which are incorporated herein by reference in their entirety. The present invention relates to a fishing rod.
[0002] Conventionally, fishing rods have been known in which a spacer is interposed in the gap between the outer circumferential surface of the rod and the inner circumferential surface of the reel seat (see, for example, Patent Document 1). The spacer is bonded to the reel seat and the rod with an adhesive.
[0003] Japanese Patent Application Laid-Open No. 2004-000058
[0004] The fishing rod of Patent Document 1 has a problem in that the number of parts and weight increase because a spacer is interposed in the gap between the rod shaft and the reel seat. Furthermore, the assembly process of the fishing rod requires two bonding processes: first, to fix the spacer to the rod shaft with adhesive, and then to fix the reel seat to the spacer with adhesive. This lengthens the overall assembly time and increases costs. Furthermore, there is a risk that the spacer will attenuate vibrations transmitted from the rod shaft to the reel seat during actual fishing, resulting in reduced sensitivity.
[0005] The present invention has been made to solve the above problems, and an object of the present invention is to provide a fishing rod that is lightweight, can be assembled in a shorter time, and has good sensitivity.
[0006] In order to solve the above problems, the present invention provides a fishing rod comprising a front rod, a rear rod, and a cylindrical reel seat, the front rod and the rear rod being bonded to the inner peripheral surface of the reel seat, and the rear part of the front rod and the front part of the rear rod are expanded in diameter to a size corresponding to the inner peripheral surface of the reel seat.
[0007] In this invention, the rear portion of the front rod and the front portion of the rear rod can be directly bonded to the inner peripheral surface of the reel seat. Therefore, there is no need to use a spacer to secure the reel seat and the rod, which reduces the number of parts and weight. Furthermore, since the spacer bonding process can be eliminated, assembly time can be shortened and costs can be reduced. Furthermore, since vibrations are transmitted directly from the front rod to the reel seat, sensitivity during actual fishing is good.
[0008] It is also preferable that the rear portion of the front rod and the front portion of the rear rod are joined together with an adhesive.
[0009] With this configuration, the rear part of the front rod and the front part of the rear rod can be directly joined inside the reel seat, improving strength. Also, vibrations are transmitted directly from the rear part of the front rod and the front part of the rear rod to the reel seat, improving sensitivity during actual fishing.
[0010] It is also preferable that the reel seat has a clamping area in which the mounting legs of the fishing reel are clamped, and the rear part of the front rod and the front part of the rear rod are joined at a position corresponding to the clamping area.
[0011] In this configuration, the joint between the rear part of the front rod and the front part of the rear rod can be reinforced by the mounting legs, thereby improving the strength of the fishing rod.
[0012] It is also preferable that the rear portion of the front rod and the front portion of the rear rod are joined to each other with an adhesive in a spigot joint structure or a straight joint structure.
[0013] With this configuration, the rear of the front rod and the front of the rear rod can be directly joined inside the reel seat, improving the strength of the fishing rod. Also, since vibrations are transmitted from the front rod to the rear rod by the spigot joint structure or the parallel joint structure, vibrations are transmitted from both the front rod and the rear rod to the reel seat. Therefore, sensitivity during actual fishing is good.
[0014] It is also preferable that a protrusion protruding radially inward is formed on the inner peripheral surface of the reel seat, and that the rear portion of the front rod and the front portion of the rear rod abut against the protrusion.
[0015] With this configuration, the rear part of the front rod and the front part of the rear rod can be bonded to the inner peripheral surface of the reel seat by abutting against the protrusion, which makes it easier to assemble the front rod and the rear rod to the reel seat, thereby improving productivity.
[0016] It is also preferable that the rear portion of the front rod and the front portion of the rear rod have different outer diameters.
[0017] This configuration allows for variations in the structure in which the rear part of the front rod and the front part of the rear rod are directly bonded to the inner peripheral surface of the reel seat, and the appearance of the exposed parts can also be changed, allowing for the construction of a fishing rod suited to the type of fishing.
[0018] It is also preferable that at least one of the rear portion of the front rod and the front portion of the rear rod be formed so that its thickness decreases toward the insertion end when inserted into the inner circumferential surface of the reel seat.
[0019] This configuration allows for weight reduction while ensuring a predetermined strength.
[0020] It is also preferable that the rear portion of the front rod and the front portion of the rear rod are spaced apart in the axial direction of the reel seat.
[0021] With this configuration, there is no need to join the rear portion of the front rod and the front portion of the rear rod inside the reel seat, which eliminates the need for adhesive for joining, thereby reducing costs.
[0022] According to the fishing rod of the present invention, it is possible to provide a fishing rod that is lightweight, has a reduced assembly time, and has good sensitivity.
[0023] 1. A cross-sectional view showing a main part of a fishing rod according to a first embodiment of the present invention. 2. A cross-sectional view showing a main part of a fishing rod according to a second embodiment of the present invention. 3. A cross-sectional view showing a main part of a fishing rod according to a third embodiment of the present invention. 4. A cross-sectional view showing a main part of a fishing rod according to a fourth embodiment of the present invention. 5. A cross-sectional view showing a main part of a fishing rod according to a fifth embodiment of the present invention. 6. A cross-sectional view showing a main part of a fishing rod according to a sixth embodiment of the present invention. 7. A cross-sectional view showing a main part of a fishing rod according to a seventh embodiment of the present invention. 8. A cross-sectional view showing a main part of a fishing rod according to an eighth embodiment of the present invention. 9. A cross-sectional view showing a front rod shaft of a fishing rod according to a ninth embodiment of the present invention. 10. A cross-sectional view showing a main part of a fishing rod according to a tenth embodiment of the present invention. 11. A cross-sectional view showing a main part of a fishing rod according to an eleventh embodiment of the present invention.
[0024] Next, embodiments of the fishing rod of the present invention will be described in detail with reference to the drawings as appropriate. In the following description, "front" refers to the tip side, and "rear" refers to the butt side. In each embodiment, the same components may be omitted from the reference numerals and descriptions. Note that the cross-sectional views in each embodiment are schematic views, and the size and shape of each part are appropriately simplified for ease of understanding.
[0025] (First embodiment) Figure 1 is a cross-sectional view showing the main parts of a fishing rod 1 according to a first embodiment of the present invention. As shown in Figure 1, the fishing rod 1 comprises a front rod 10, a rear rod 20, and a cylindrical reel seat 30. The front rod 10 and the rear rod 20 are directly bonded to a cylindrical inner peripheral surface 35 formed on the reel seat 30 with an adhesive.
[0026] The front rod 10 and the rear rod 20 are configured as tubular bodies (hollow bodies) made of fiber-reinforced resin. The front rod 10 and the rear rod 20 are formed, for example, by winding a fiber-reinforced resin prepreg (prepreg sheet) made of reinforced fibers (mainly carbon fibers or glass fibers) impregnated with a synthetic resin such as epoxy resin around a core, and then undergoing a heating process and a de-core process.
[0027] The front rod 10 comprises a front rod main body 11 and a rear portion 12 that is continuous with the rear end of the front rod main body 11. The rear rod 20 comprises a rear rod main body 21 and a front portion 22 that is continuous with the front end of the rear rod main body 21. The rear portion 12 of the front rod 10 and the front portion 22 of the rear rod 20 are expanded in outer diameter to correspond to the inner diameter of the inner circumferential surface 35 of the reel seat 30.
[0028] The front rod body 11 is a cylindrical rod portion having a small diameter throughout the entire axial direction and an outer diameter smaller than the inner diameter of the inner peripheral surface 35 of the reel seat 30. The rear portion 12 has a first inclined portion 13 continuing from the rear end of the front rod body 11 and a first large-diameter portion 14 continuing from the rear end 13a of the first inclined portion 13. The first inclined portion 13 has a funnel shape (approximately a cone shape) that gradually widens in diameter toward the rear. The outer diameter of the front end of the first inclined portion 13 corresponds to the outer diameter of the front rod body 11, and the outer diameter of the rear end 13a of the first inclined portion 13 corresponds to the inner diameter of the inner peripheral surface 35 of the reel seat 30. The rear end 13a of the first inclined portion 13 is located radially inward of the front end surface 30a of the reel seat 30. As a result, the first inclined portion 13 is exposed in front of the reel seat 30 .
[0029] The first large diameter portion 14 is a cylindrical rod portion having a large diameter over the entire axial direction, and has an outer diameter corresponding to the inner diameter of the inner peripheral surface 35 of the reel seat 30. The first large diameter portion 14 is bonded to the inner peripheral surface 35 of the reel seat 30 with an adhesive.
[0030] The rear rod body 21 is a cylindrical rod portion having a small diameter along the entire axial direction. Like the front rod body 11, it has an outer diameter smaller than the inner diameter of the inner peripheral surface 35 of the reel seat 30. The front portion 22 has a second inclined portion 23 continuing from the front end of the rear rod body 21 and a second large-diameter portion 24 continuing from the front end 23a of the second inclined portion 23. The second inclined portion 23 has a funnel shape (approximately a cone shape) that gradually widens in diameter toward the front. The outer diameter of the rear end of the second inclined portion 23 corresponds to the outer diameter of the rear rod body 21, and the outer diameter of the front end 23a of the second inclined portion 23 corresponds to the inner diameter of the inner peripheral surface 35 of the reel seat 30. The front end 23a of the second inclined portion 23 is located radially inward of the rear end surface 30b of the reel seat 30. As a result, the second inclined portion 23 is exposed to the rear of the reel seat 30 .
[0031] The second large diameter portion 24 is a cylindrical rod portion whose diameter is large over the entire axial direction, and has an outer diameter corresponding to the inner diameter of the inner peripheral surface 35 of the reel seat 30. The second large diameter portion 24 is bonded to the inner peripheral surface 35 of the reel seat 30 with an adhesive. The outer and inner diameters of the second large diameter portion 24 are the same as those of the first large diameter portion 14. The front end surface 25 of the second large diameter portion 24 is joined to (abuts against) the rear end surface 15 of the first large diameter portion 14 of the front rod 10, and is bonded to the rear end surface 15 with an adhesive. As a result, the front rod 10 and the rear rod 20 are integrally connected inside the reel seat 30.
[0032] The reel seat 30 is a member for attaching a mounting leg of a fishing reel (not shown). The reel seat 30 also functions as a member for fixing the front rod 10 and the rear rod 20 together, and the front rod 10 and the rear rod 20 are integrally formed via the reel seat 30. The inner peripheral surface 35 of the reel seat 30 is a cylindrical surface with a large diameter over the entire axial direction, and has an inner diameter into which the first large diameter portion 14 of the front rod 10 and the second large diameter portion 24 of the rear rod 20 are inserted.
[0033] When assembling the fishing rod 1 as described above, the front rod 10 and the rear rod 20 are bonded to the inner peripheral surface 35 of the reel seat 30 with an adhesive. In this case, adhesive is applied to the outer peripheral surface of the first large diameter portion 14 of the front rod 10, the rear end surface 15 of the first large diameter portion 14, and the inner peripheral surface 35 of the reel seat 30, and the first large diameter portion 14 is inserted into the inner peripheral surface 35 from the front of the reel seat 30 to a predetermined position. Next, adhesive is applied to the outer peripheral surface of the second large diameter portion 24 of the rear rod 20 and the front end surface 25 of the second large diameter portion 24, and the second large diameter portion 24 is inserted into the inner peripheral surface 35 from the rear of the reel seat 30. Then, the front end surface 25 of the second neck-retaining portion is brought into contact with the rear end surface 15 of the first large diameter portion 14. As a result, the fishing rod 1 is assembled, in which the front rod 10 and the rear rod 20 are each adhered to the reel seat 30 with an adhesive.
[0034] The assembly procedure is not limited to this, and the fishing rod 1 may be assembled by joining the front rod 10 and the rear rod 20 together in advance and then inserting them into the inner peripheral surface 35 of the reel seat 30. The joining position (contact position) of the front rod 10 and the rear rod 20 is not limited to the axial center of the inner peripheral surface 35, and may be shifted to another position in the axial direction.
[0035] According to the fishing rod 1 of this embodiment described above, a portion of the rear portion 12 of the front rod 10 and a portion of the front portion 22 of the rear rod 20 can be directly bonded to the inner peripheral surface 35 of the reel seat 30. Therefore, there is no need to use a spacer to fix the front rod 10 and the rear rod 20, which reduces the number of parts and the weight. Furthermore, since the bonding process for bonding the spacers can be eliminated, assembly time can be shortened and costs can be reduced.
[0036] Furthermore, when vibrations are input to the front rod 10 due to a fish biting or getting hooked, the vibrations are transmitted directly from the front rod 10 and the rear rod 20 to the reel seat 30, so the vibrations are easily transmitted to the hand gripping the reel seat 30, resulting in good sensitivity during actual fishing.
[0037] Furthermore, since the rear portion 12 of the front rod 10 and the front portion 22 of the rear rod 20 are joined together inside the reel seat 30, the strength of the fishing rod 1 can be improved.
[0038] Second Embodiment Next, a fishing rod 1A according to a second embodiment will be described with reference to Fig. 2. Fig. 2 is a cross-sectional view showing the main parts of a fishing rod 1A according to the second embodiment of the present invention. This embodiment differs from the first embodiment in that the rear portion 12 of the front rod rod 10A and the front portion 22 of the rear rod rod 20A are joined (butted) together in a clamping area L1 where the mounting leg 50 of the fishing reel is clamped.
[0039] As shown in Figure 2, the first large diameter portion 14 of the front rod 10A is longer in the axial direction than that of the first embodiment. On the other hand, the second inclined portion 23 of the rear rod 20A has a larger inclination angle than that of the first embodiment. Also, the second large diameter portion 24 of the rear rod 20A is shorter in the axial direction than that of the first embodiment.
[0040] The reel seat 30 includes a fixed hood 31 and a floating hood 32. A mounting surface 33 is formed between the fixed hood 31 and the floating hood 32, on which a mounting leg 50 of the fishing reel is placed. The mounting leg 50 is attached to the reel seat 30 by being sandwiched between the fixed hood 31 and the floating hood 32 while placed on the mounting surface 33. A sandwiching region L1 is an area defined by the fixed hood 31 and the floating hood 32. Such sandwiching region L1 is substantially reinforced by the mounting leg 50 being placed thereon.
[0041] In this embodiment, the rear portion 12 of the front rod 10A and the front portion 22 of the rear rod 20A are joined (contacted) at a position corresponding to the clamping region L1 of the mounting leg 50. In other words, the joint position is set within the clamping region L1.
[0042] According to this embodiment, the joint between the rear portion 12 of the front rod 10 and the front portion 22 of the rear rod 20 can be reinforced by the mounting legs 50, thereby improving the strength of the fishing rod 1A.
[0043] (Third embodiment) Next, a fishing rod 1B according to a third embodiment will be described with reference to Fig. 3. Fig. 3 is a cross-sectional view showing a main part of a fishing rod 1B according to the third embodiment of the present invention. This embodiment differs from the first and second embodiments in that a spigot joint structure is used as the joint structure.
[0044] As shown in Figure 3, a spigot joint annular member 40 is pre-bonded with an adhesive to the inner surface of the rear end 14a of the first large diameter portion 14. The front end 24a of the second large diameter portion 24 is fitted onto the rear outer surface of the annular member 40 and bonded with an adhesive. This spigot joint structure joins the rear portion 12 of the front rod 10B and the front portion 22 of the rear rod 20B. The annular member 40 may also be pre-bonded with an adhesive to the inner surface of the front end 24a of the second large diameter portion 24. In this case, the rear end 14a of the first large diameter portion 14 is fitted onto the front outer surface of the annular member 40 and bonded with an adhesive.
[0045] According to this embodiment, the rear portion 12 of the front rod 10B and the front portion 22 of the rear rod 20B can be directly joined by a spigot joint structure inside the reel seat 30, thereby improving the strength of the fishing rod 1B. Furthermore, the spigot joint structure allows vibrations to be suitably transmitted from the front rod 10B to the rear rod 20B, so that vibrations are transmitted from both the front rod 10B and the rear rod 20B to the reel seat 30. Therefore, sensitivity during actual fishing is good.
[0046] (Fourth embodiment) Next, a fishing rod 1C according to a fourth embodiment will be described with reference to Fig. 4. Fig. 4 is a cross-sectional view showing the main parts of a fishing rod 1C according to the fourth embodiment of the present invention. This embodiment differs from the first to third embodiments in that a straight joint structure is used as the joint structure.
[0047] As shown in Figure 4, the rear end 14a of the first large diameter portion 14 is formed into a stepped cylindrical shape with a reduced diameter to form a straight joint structure. The front end 24a of the second large diameter portion 24 is fitted onto the rear end 14a of the first large diameter portion 14 and bonded with an adhesive. This straight joint structure joins the rear portion 12 of the front rod 10C and the front portion 22 of the rear rod 20C. However, the joint structure is not limited to this. It is also possible to form the front end 24a of the second large diameter portion 24 into a stepped cylindrical shape with a reduced diameter to form a straight joint structure, and then fit the rear end 14a of the first large diameter portion 14 onto the front end 24a of the second large diameter portion 24 and bond it thereto.
[0048] In this embodiment as well, the rear portion 12 of the front rod 10C and the front portion 22 of the rear rod 20C can be directly joined by a straight joint structure inside the reel seat 30, thereby improving the strength of the fishing rod 1C. Furthermore, the straight joint structure allows vibrations to be suitably transmitted from the front rod 10C to the rear rod 20C, so vibrations are transmitted from both the front rod 10C and the rear rod 20C to the reel seat 30. Therefore, sensitivity during actual fishing is good.
[0049] Fifth Embodiment Next, a fishing rod 1D according to a fifth embodiment will be described with reference to Fig. 5. Fig. 5 is a cross-sectional view showing a main portion of a fishing rod 1D according to the fifth embodiment of the present invention. This embodiment differs from the first to fourth embodiments in that a joint projection 36 is provided on the inner peripheral surface 35 of a reel seat 30D.
[0050] As shown in Figure 5, the protrusion 36 circumferentially protrudes radially inward from the inner peripheral surface 35 of the reel seat 30D. The rear end surface 15 of the first large diameter portion 14 of the front rod 10D abuts against and is bonded with an adhesive to the front surface of the protrusion 36. The front end surface 25 of the second large diameter portion 24 of the rear rod 20D abuts against and is bonded with an adhesive to the rear surface of the protrusion 36. The front and rear surfaces of the protrusion 36 are sized to face the rear end surface 15 of the front rod 10D and the front end surface 25 of the rear rod 20D, respectively.
[0051] Although the protrusion 36 is shown as one that protrudes circumferentially from the inner circumferential surface 35, the present invention is not limited thereto and the protrusion 36 may protrude partially from the inner circumferential surface 35. The protrusion height (the amount of protrusion radially inward) of the protrusion 36 can be set appropriately. The protrusion 36 may be shaped like a wall that divides the inner circumferential surface 35 in the radial direction, and the rear end surface 15 of the front rod 10D and the front end surface 25 of the rear rod 20D may abut against the front and rear surfaces thereof.
[0052] According to this embodiment, the same effects as those of the above-described embodiment can be obtained, and when assembling the fishing rod 1D, it is easy to position the rear portion 12 of the front rod 10D and the front portion 22 of the rear rod 20D relative to the inner peripheral surface 35. Therefore, it is possible to shorten the assembly time, reduce costs, and improve productivity.
[0053] Sixth Embodiment Next, a fishing rod 1D1 according to a sixth embodiment will be described with reference to Fig. 6. Fig. 6 is a cross-sectional view showing the main parts of a fishing rod 1D1 according to the sixth embodiment of the present invention. This embodiment is a modification of the fifth embodiment, and differs from the fifth embodiment in that a joining protrusion 36D1 is provided on the inner peripheral surface 35 of the reel seat 30D1, and the front end surface 25a of the second large diameter portion 24 is joined (abuts) to the rear end surface 15 of the first large diameter portion 14 of the front rod 10.
[0054] As shown in FIG. 6, the protrusion 36D1 protrudes radially inward from the inner peripheral surface 35 of the reel seat 30D1. The protrusion 36D1 is formed with a smaller protrusion height (amount of protrusion radially inward) than the protrusion 36 of the fifth embodiment (see FIG. 5). A portion of the rear end surface 15 of the first large diameter portion 14 of the front rod 10D1 abuts against the front surface of the protrusion 36D1 and is bonded thereto with an adhesive. In addition, a second front end surface 25b (described later) of the second large diameter portion 24 of the rear rod 20D1 abuts against the rear surface of the protrusion 36D1 and is bonded thereto with an adhesive.
[0055] The front end 24a of the second large diameter portion 24 of the rear rod 20D1 is formed into a stepped cylindrical shape with a reduced diameter so as to abut against the rear end surface 15 of the first large diameter portion 14 of the front rod 10. The front end 24a has a first front end surface 25a, a second front end surface 25b, and a reduced diameter outer peripheral surface 25c. The first front end surface 25a abuts against a portion of the rear end surface 15 of the first large diameter portion 14 and is bonded thereto with an adhesive. The second front end surface 25b abuts against the rear surface of the protrusion 36D1 and is bonded thereto with an adhesive. The reduced diameter outer peripheral surface 25c abuts against the inner peripheral surface of the protrusion 36D1 and is bonded thereto with an adhesive. In other words, the front end 24a of the second large diameter portion 24 extends forward to cover the inner peripheral side of the protrusion 36D1 and is joined to a portion of the rear end surface 15 of the first large diameter portion 14. As a result, the front end 24a of the second large diameter portion 24 is bonded to both the protrusion 36D1 and the rear end surface 15 of the first large diameter portion 14.
[0056] In this embodiment, the front end 24a of the second large diameter portion 24 of the rear rod 20D1 is formed into a stepped cylindrical shape, but this is not limited thereto, and the rear end 14a of the front rod 10D1 may be formed into a stepped cylindrical shape by reducing the diameter. In this case, the rear end 14a of the first large diameter portion 14 extends rearward to cover the protrusion 36D1 from the inner circumferential surface side, and abuts against a part of the front end face 25 (see FIG. 5) of the second large diameter portion 24 and is bonded thereto with an adhesive.
[0057] According to this embodiment, the same effects as those of the above-described embodiment can be obtained, and when assembling the fishing rod 1D1, it is easy to position the rear portion 12 of the front rod 10D1 and the front portion 22 of the rear rod 20D1 relative to the inner peripheral surface 35. Therefore, it is possible to shorten the assembly time, reduce costs, and improve productivity.
[0058] Furthermore, since the rear portion 12 of the front rod 10D1 and the front portion 22 of the rear rod 20D1 are joined together inside the reel seat 30D1, the strength of the fishing rod 1D1 can be improved.
[0059] Seventh Embodiment Next, a fishing rod 1E according to a seventh embodiment will be described with reference to Fig. 7. Fig. 7 is a cross-sectional view showing a main portion of a fishing rod 1E according to the seventh embodiment of the present invention. This embodiment differs from the first to sixth embodiments in that the outer diameter of the rear portion 12 of the front rod 10E and the outer diameter of the front portion 22 of the rear rod 20E are different from each other.
[0060] As shown in Figure 7, the rear portion 12 of the front rod 10E has a larger diameter overall than the front portion 22 of the rear rod 20E. Relatively, the front portion 22 of the rear rod 20E has a smaller diameter overall than the rear portion 12 of the front rod 10E. Corresponding to these, the inner peripheral surface 35 of the reel seat 30E is formed in a stepped cylindrical shape with a large-diameter inner peripheral surface 35a and a small-diameter inner peripheral surface 35b having different inner diameters. A step surface 35c is formed at the boundary between the large-diameter inner peripheral surface 35a and the small-diameter inner peripheral surface 35b.
[0061] The first large diameter portion 14 of the front rod 10E is bonded to the large diameter inner peripheral surface 35a with an adhesive. The rear end face 15 of the first large diameter portion 14 is bonded so as to partially abut against the stepped surface 35c of the inner peripheral surface 35. The second large diameter portion 24 of the rear rod 20E is bonded to the small diameter inner peripheral surface 35b with an adhesive. The front end face 25 of the second large diameter portion 24 is bonded so as to partially abut against the rear end face 15 of the first large diameter portion 14.
[0062] According to this embodiment, the same effects as those of the above-described embodiment can be obtained, and in assembling the fishing rod 1E, the rear end surface 15 of the first large diameter portion 14 can be bonded so as to abut against the step surface 35c, and the front end surface 25 of the second large diameter portion 24 can be bonded so as to abut against the rear end surface 15 of the first large diameter portion 14. Therefore, these assembly operations can be easily performed. This allows for a reduction in assembly time, cost reduction, and improvement of productivity.
[0063] Furthermore, variations can be made in the structure in which the rear portion 12 of the front rod 10E and the front portion 22 of the rear rod 20E are directly bonded to the inner peripheral surface 35 of the reel seat 30, and the appearance of the exposed portions can also be changed. This allows the construction of a fishing rod 1E suited to the type of fishing.
[0064] Eighth Embodiment Next, a fishing rod 1F according to an eighth embodiment will be described with reference to Figure 8. Figure 8 is a cross-sectional view showing the main parts of a fishing rod 1F according to the eighth embodiment of the present invention. This embodiment is a modified example that combines the fifth and seventh embodiments, and differs from the seventh embodiment in that the outer diameter of the rear portion 12 of the front rod 10F and the outer diameter of the front portion 22 of the rear rod 20F are made different from each other, and the rear portion 12 of the front rod 10F and the front portion 22 of the rear rod 20F are abutted against (contacted with) a protrusion 36F provided on the inner peripheral surface 35.
[0065] As shown in Figure 8, the rear portion 12 of the front rod 10F has a larger diameter overall than the front portion 22 of the rear rod 20F. Relatively speaking, the front portion 22 of the rear rod 20F has a smaller diameter overall than the rear portion 12 of the front rod 10F. Corresponding to these, the inner peripheral surface 35 of the reel seat 30F is provided with a large-diameter inner peripheral surface 35a and a small-diameter inner peripheral surface 35b, which have different inner diameters. The inner peripheral surface 35 has a stepped cylindrical shape.
[0066] The protrusion 36F protrudes radially inward at the boundary between the large-diameter inner circumferential surface 35a and the small-diameter inner circumferential surface 35b. The rear end surface 15 of the first large-diameter portion 14 of the front rod 10F abuts against the front surface of the protrusion 36F and is bonded thereto with an adhesive. The front end surface 25 of the second large-diameter portion 24 of the rear rod 20F abuts against the rear surface of the protrusion 36F and is bonded thereto with an adhesive.
[0067] This embodiment provides the same advantageous effects as the fifth and seventh embodiments. Specifically, when assembling the fishing rod 1F, the rear portion 12 of the front rod 10F and the front portion 22 of the rear rod 20F can be easily positioned. This shortens assembly time, reduces costs, and improves productivity. Furthermore, the structure in which the rear portion 12 of the front rod 10F and the front portion 22 of the rear rod 20F are directly bonded to the inner circumferential surface 35 of the reel seat 30 can be varied, and the appearance of the exposed portions can be changed. This allows the fishing rod 1F to be tailored to various types of fishing.
[0068] Ninth Embodiment Next, a fishing rod 1G according to a ninth embodiment will be described with reference to Fig. 9. Fig. 9 is a cross-sectional view showing a front rod 10G of a fishing rod 1G according to the ninth embodiment of the present invention. This embodiment differs from the first to eighth embodiments in that the thickness of the rear portion 12 of the front rod 10G is formed to become thinner toward the rear end 14a (insertion end).
[0069] As shown in Figure 9, the first inclined portion 13 of the rear portion 12 of the front rod 10G is formed so that its thickness gradually decreases from the front side to the rear side. Accordingly, the first large diameter portion 14 continuing from the first inclined portion 13 is also thinner than that of the first large diameter portion 14 of the above-described embodiments. Note that, although the first large diameter portion 14 is shown to have a substantially uniform thickness over the entire axial direction, this is not limiting and the thickness may be further reduced toward the rear end portion 14a.
[0070] In this embodiment, the first large diameter portion 14 (rear portion 12) of the front rod 10G is directly bonded to the inner peripheral surface 35 of the reel seat 30 (see FIG. 1, etc.), ensuring a predetermined strength. Moreover, the thin-walled structure allows the fishing rod 1G to be made lighter. Note that, like the front rod 10G, the second inclined portion 23 of the front portion 22 of the rear rod 20G (not shown) may also be formed so that its thickness gradually decreases from the rear side to the front side. Alternatively, only the rear rod 20G may be formed so that its thickness decreases.
[0071] Tenth Embodiment Next, a fishing rod 1H according to a tenth embodiment will be described with reference to Fig. 10. Fig. 10 is a cross-sectional view showing a main portion of a fishing rod 1H according to a tenth embodiment of the present invention. This embodiment differs from the first to ninth embodiments in that the rear portion 12 of the front rod 10H and the front portion 22 of the rear rod 20H are disposed with a gap S1 in the axial direction of the reel seat 30.
[0072] 10, the rear end surface 15 of the first large diameter portion 14 of the front rod 10H and the front end surface 25 of the second large diameter portion 24 of the rear rod 20H face each other with a gap S1 between them inside the reel seat 30 and are arranged in a non-contact state. The size of the gap S1 can be set as appropriate.
[0073] According to this embodiment, the same effects as those of the above-described embodiment can be obtained, and since there is no need to join the rear portion 12 of the front rod 10H and the front portion 22 of the rear rod 20H inside the reel seat 30, adhesive is not required, which reduces costs.
[0074] (Eleventh Embodiment) Next, a fishing rod 1J according to an eleventh embodiment will be described with reference to Fig. 11. Fig. 11 is a cross-sectional view showing a main portion of a fishing rod 1J according to the eleventh embodiment of the present invention. This embodiment differs from the first to tenth embodiments in that the first large diameter portion 14 of the front rod rod 10H and the second large diameter portion 24 of the rear rod rod 20H are exposed at the front and rear of the reel seat 30.
[0075] 11 , the first large diameter portion 14 of the front rod 10H extends forward of the front end surface 30a of the reel seat 30, and a portion of it is exposed in front of (to the outside of) the reel seat 30. As a result, the rear end portion 13a of the first inclined portion 13 is also located in front of the front end surface 30a of the reel seat 30.
[0076] Similarly, the second large diameter portion 24 of the rear rod 20H extends rearward from the rear end surface 30b of the reel seat 30, and is partially exposed to the rear (exterior) of the reel seat 30. As a result, the front end 23a of the second inclined portion 23 is also located rearward from the rear end surface 30b of the reel seat 30.
[0077] In addition, either the first large diameter portion 14 of the front rod 10H or the second large diameter portion 24 of the rear rod 20H may be configured to be exposed to the outside of the reel seat 30.
[0078] According to this embodiment, it is possible to provide variations in the structure in which the rear portion 12 of the front rod 10J and the front portion 22 of the rear rod 20J are directly bonded to the inner peripheral surface 35 of the reel seat 30, and it is possible to change the appearance of the exposed portions. This allows the construction of a fishing rod 1J suited to the type of fishing.
[0079] Although the embodiments of the present invention have been described above, appropriate design changes are possible within the scope of the present invention. For example, in each of the above-described embodiments, the first inclined portion 13 and the second inclined portion 23 are provided so as to be exposed to the outside of the reel seat 30, but this is not limited thereto, and a configuration in which a portion of the first inclined portion 13 and the second inclined portion 23 is disposed inside the inner peripheral surface 35 of the reel seat 30 is also possible.
[0080] In addition, for example, a hole may be formed in the reel seat 30 (30D, etc.) so that the joint state (contact state) between the rear portion 12 of the front rod 10 (10A, etc.) and the front portion 22 of the rear rod 20 (20A, etc.) can be visually observed from outside the reel seat 30.
[0081] Furthermore, in each of the above embodiments, the front rod 10 (10A, etc.) and the rear rod 20 (20A, etc.) are shown as being configured as tubular bodies (hollow bodies), but this is not limited to this, and one or both of the front rod 10 (10A, etc.) and the rear rod 20 (20A, etc.) may be configured as solid bodies.
[0082] The rear portion 12 of the front rod 10 (10A, etc.) may be made of a fiber-reinforced resin prepreg (prepreg sheet) different from that of the front rod body 11. Similarly, the front portion 22 of the rear rod 20 (20A, etc.) may be made of a fiber-reinforced resin prepreg (prepreg sheet) different from that of the rear rod body 21.
[0083] 1 to 1J Fishing rod 10, 10A to 10J Front rod shaft 12 Rear portion 14a Rear end portion (insertion end) 22 Front portion 20, 20A to 20J Rear rod shaft 30, 30D to 30F Reel seat 35 Inner peripheral surface 50 Mounting leg portion L1 Clamping area
Claims
1. A fishing rod comprising a front rod, a rear rod, and a cylindrical reel seat, wherein the front rod and the rear rod are adhered to the inner peripheral surface of the reel seat, and the rear portion of the front rod and the front portion of the rear rod have an enlarged diameter corresponding to the size of the inner peripheral surface of the reel seat.
2. The fishing rod according to claim 1, wherein the rear portion of the front rod and the front portion of the rear rod are joined to each other by an adhesive.
3. The reel seat has a clamping region where the mounting legs of the fishing reel are clamped, and the rear portion of the front rod and the front portion of the rear rod are joined at a position corresponding to the clamping region. The fishing rod according to claim 2, characterized in that.
4. The fishing rod according to claim 1, wherein the rear portion of the front rod and the front portion of the rear rod are joined to each other by an adhesive by an inlay joint structure or a butt joint structure.
5. The fishing rod according to claim 1, wherein a protrusion protruding radially inward is formed on the inner peripheral surface of the reel seat, and the rear portion of the front rod and the front portion of the rear rod are in contact with the protrusion.
6. The fishing rod according to claim 1, wherein the rear portion of the front rod and the front portion of the rear rod have different outer diameters.
7. The fishing rod according to claim 1, wherein at least one of the rear portion of the front rod and the front portion of the rear rod is formed such that the wall thickness becomes thinner toward the insertion end when inserted into the inner peripheral surface of the reel seat.
8. The fishing rod according to claim 1, wherein the rear portion of the front rod and the front portion of the rear rod are arranged at intervals in the axial direction of the reel seat.
Citation Information
Patent Citations
JP1986150474U
Fishing rod
JP1991065467U
Fishing rod
JP2001095432A
Fishing rod
JP2007029052A
Fishing rod
JP2016158521A