Spinning reels

By integrating the drive body components through forging and incorporating an integral sliding gear, the spinning reel achieves a smaller size and higher strength, addressing the limitations of conventional designs.

JP7654397B2Active Publication Date: 2025-04-01SHIMANO INC +1
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Patent Information

Application Number
JP2020210756
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2020-12-18
Publication Date
2025-04-01
Estimated Expiration
2040-12-18

AI Technical Summary

Technical Problem

Conventional spinning reels face challenges in reducing the size of the reel body while ensuring a high-strength drive body, as the separate sliding gears increase the outer diameter and the integrally formed driving gear may compromise strength.

Method used

The spinning reel integrates the shaft portion, first gear, and second gear by forging, allowing for a compact design with a sliding gear that is integral to the drive shaft, thereby reducing the reel body size and enhancing the drive body's strength.

Benefits of technology

This configuration results in a smaller reel body and a high-strength drive body, as the forging process ensures robustness and the integrated gear design minimizes size while maintaining functionality.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a spinning reel in which a reel body is downsized, and a high-strength driving body can be formed.SOLUTION: A spinning reel 1 comprises a reel body 3, a rotor 7, a spool shaft 9, and a driving body 13. The driving body 13 comprises a driving shaft 21, a driving gear 23 provided in the driving shaft 21 in order to rotate the rotor 7, and a sliding gear 25 provided in the driving shaft 21 in order to move the spool shaft 9. In the driving body 13, the driving shaft 21, the driving gear 23, and the sliding gear 25 are integrally formed by forging.SELECTED DRAWING: Figure 4
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Description

[Technical field]

[0001] The present invention relates to a spinning reel. [Background technology]

[0002] In a conventional spinning reel, a driver used to rotate the rotor and move the spool shaft has been disclosed (see Patent Document 1). The driver has a drive shaft, a drive gear, and a sliding gear. The drive gear is used to rotate the rotor and is molded integrally with the drive shaft. The sliding gear is used to move the spool shaft and is provided separately from the drive shaft. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 2002-34397 A Summary of the Invention [Problem to be solved by the invention]

[0004] In the spinning reel of Patent Document 1, the sliding gear is provided separately from the drive shaft. In this case, a space is required between the inner peripheral surface of the sliding gear and the outer peripheral surface of the drive shaft to attach the sliding gear to the outer surface of the drive shaft. This makes the outer diameter of the sliding gear large. In addition, the outer diameter of the interlocking gear that meshes with the sliding gear also becomes large. In other words, there is a risk that the reel body of the spinning reel will become large.

[0005] On the other hand, the driving gear and the sliding gear may be integrally formed with the driving shaft by casting such as zinc die casting. Since the driving gear rotates the rotor, the driving gear is required to have a certain strength. However, when the driving gear is integrally formed with the driving shaft by casting, there is a risk that the strength of the driving gear cannot be sufficiently ensured. In addition, when a handle capable of winding with high torque is screwed into a driving shaft formed by casting, there is a risk that the female thread of the driving shaft may be crushed.

[0006] The present invention has been made in consideration of the above problems, and an object of the present invention is to provide a spinning reel that can reduce the size of the reel body and form a high-strength drive body. [Means for solving the problem]

[0007] A spinning reel according to one aspect of the present invention includes a reel body, a rotor, a spool shaft, and a driver. The rotor is configured to be rotatable relative to the reel body. The spool shaft is configured to be movable forward and backward relative to the reel body. The driver has a shaft portion, a first gear provided on the shaft portion for rotating the rotor, and a second gear provided on the shaft portion for moving the spool shaft. In the driver, the shaft portion, the first gear, and the second gear are integrally formed by forging.

[0008] The first gear has a first disk portion provided on the outer peripheral surface of the shaft portion and a first tooth portion protruding from the first disk portion toward the second gear in the axial direction. The second gear has a second disk portion provided on the outer peripheral surface of the shaft portion at a distance from the first disk portion and a second tooth portion protruding from the second disk portion in the radial direction away from the axis of the shaft portion. The tooth tip diameter of the second tooth portion is smaller than the inner peripheral diameter of the first tooth portion.

[0009] In the spinning reel of the present invention, the second gear for moving the spool shaft is molded integrally with the shaft, making it possible to reduce the size of the reel body compared to the prior art. Also, in the spinning reel of the present invention, the driver (shaft, first gear, and second gear) is formed by forging, making it possible to form a driver with higher strength compared to the prior art.

[0010] In a spinning reel according to another aspect of the present invention, the axial distance between the tip of the first teeth portion and the side surface of the second teeth portion is preferably equal to or less than the tip diameter of the second teeth portion and equal to or more than 20% of the inner diameter of the first teeth portion. By configuring in this manner, a high-strength driver can be suitably formed by forging.

[0011] In a spinning reel according to another aspect of the present invention, the axial distance is preferably within a range of 5 mm to 12 mm. By configuring in this manner, a high-strength driver can be more suitably formed by forging.

[0012] In a spinning reel according to another aspect of the present invention, the tooth tip diameter of the second tooth portion relative to the inner peripheral diameter of the first tooth portion is preferably 30% or more and 50% or less. By configuring in this manner, a high-strength driver can be suitably formed by forging.

[0013] In a spinning reel according to another aspect of the present invention, the difference between the inner diameter of the first tooth portion and the tooth tip diameter of the second tooth portion is preferably 4 mm or more and 15 mm or less. By configuring in this manner, a high-strength driver can be more suitably formed by forging.

[0014] In a spinning reel according to another aspect of the present invention, the ratio of the diameter of the shaft portion to the diameter of the tip of the second teeth portion is preferably 50% or more and 70% or less. By configuring in this manner, a high-strength driver can be suitably formed by forging.

[0015] In a spinning reel according to another aspect of the present invention, the diameter of the shaft is preferably 6 mm or more and 12 mm or less. In this case, since the driver is formed by forging, the diameter of the shaft is smaller than that of the prior art. This allows the outer diameter of the second gear provided on the shaft to be smaller, so the reel body can be made smaller than that of the prior art. Effect of the Invention

[0016] According to the present invention, in a spinning reel, it is possible to reduce the size of the reel body and form a high-strength drive body. [Brief description of the drawings]

[0017] [Figure 1] 1 is a side view of a spinning reel according to an embodiment of the present invention. [Diagram 2] FIG. 2 is a side view of the spinning reel with the side cover and the driver removed. [Diagram 3] FIG. [Figure 4] FIG. [Diagram 5] FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0018] As shown in Figure 1, a spinning reel 1 in which an embodiment of the present invention is adopted includes a reel body 3, a rotor 7, a spool shaft 9 (see Figure 2), and a driver 13 (see Figure 2). In detail, the spinning reel 1 includes the reel body 3, a handle 5, the rotor 7, the spool shaft 9 (see Figure 2), a spool 11, and a driver 13 (see Figure 2).

[0019] As shown in Figure 1, the handle 5 is rotatably supported by the reel body 3. In this embodiment, an example is shown in which the handle 5 is disposed on the left side of the reel body 3, but the handle 5 may be disposed on the right side of the reel body 3. As shown in Figure 2, an oscillating mechanism 15 for moving the spool 11 in the forward and backward directions is disposed in the internal space of the reel body 3. The oscillating mechanism 15 has substantially the same configuration as a conventional mechanism, and therefore a description thereof will be omitted here.

[0020] The rotor 7 is used to wind the fishing line onto the spool 11. As shown in Figures 1 and 2, the rotor 7 is disposed at the front of the reel body 3. The rotor 7 is configured to be rotatable relative to the reel body 3. For example, as shown in Figure 2, the rotor 7 is connected to a pinion gear 17 so as to be rotatable together with the pinion gear 17. The pinion gear 17 is rotatably supported by the reel body 3. The rotor 7 rotates in conjunction with the rotation of the pinion gear 17.

[0021] As shown in Figure 2, the spool shaft 9 is configured to be able to advance and retreat relative to the reel body 3. For example, the spool shaft 9 is supported by the reel body 3 so that it can advance and retreat. In detail, the spool shaft 9 is inserted into the inner periphery of a cylindrical pinion gear 17. The spool shaft 9 reciprocates in the front-to-rear direction relative to the reel body 3 by operation of the oscillating mechanism 15. The front-to-rear direction is the direction in which the spool axis center X1 of the spool shaft 9 extends.

[0022] Fishing line is wound around the spool 11. As shown in Fig. 2, the spool 11 is configured to be movable integrally with the spool shaft 9. For example, the spool 11 is attached to the tip end of the spool shaft 9.

[0023] 3, the driver 13 has a drive shaft 21 (an example of a shaft portion), a drive gear 23 (an example of a first gear), and a sliding gear 25 (an example of a second gear). The drive shaft 21, the drive gear 23, and the sliding gear 25 are integrally formed by forging.

[0024] The drive shaft 21 rotates in conjunction with the rotation of the handle 5. The drive shaft 21 has a drive axis X2 (an example of an axis of a shaft portion). The handle shaft 6 (see FIG. 2) of the handle 5 is attached to the drive shaft 21. For example, the drive shaft 21 is formed in a cylindrical shape. The handle shaft 6 is detachably attached to the inner periphery of the drive shaft 21.

[0025] The drive gear 23 is used to rotate the rotor 7. As shown in Fig. 3, the drive gear 23 is provided on the drive shaft 21. The drive gear 23 meshes with the pinion gear 17 (see Fig. 2).

[0026] 3, the drive gear 23 has a first disk portion 23a and a first tooth portion 23b. The first disk portion 23a is provided on the outer circumferential surface of the drive shaft 21. For example, the first disk portion 23a is integrally formed with the drive shaft 21 by forging.

[0027] The first toothed portion 23b protrudes from the first disk portion 23a toward the sliding gear 25 in the drive shaft direction. The first toothed portion 23b is integrally formed on the outer periphery of the first disk portion 23a by forging. The first toothed portion 23b is composed of a plurality of gear teeth. The drive shaft direction is the direction in which the drive shaft center X2 extends.

[0028] The sliding gear 25 is used to move the spool shaft 9. As shown in Fig. 3, the sliding gear 25 is provided on the drive shaft 21. As shown in Fig. 2, the sliding gear 25 meshes with the cam gear 22 of the oscillating mechanism 15. In conjunction with the rotation of the sliding gear 25, the oscillating mechanism 15 operates.

[0029] 3, the sliding gear 25 has a second disk portion 25a and a second tooth portion 25b. The second disk portion 25a is provided on the outer circumferential surface of the drive shaft 21 with a gap between it and the first disk portion 23a. For example, the second disk portion 25a is integrally formed with the drive shaft 21 by forging.

[0030] The second teeth portion 25b protrudes from the second disk portion 25a in the radial direction away from the drive axis X2. The second teeth portion 25b is integrally formed on the outer periphery of the second disk portion 25a by forging. The second teeth portion 25b is composed of a plurality of gear teeth.

[0031] 4 and 5, a tooth tip diameter R2 of the second teeth portion 25b is smaller than an inner peripheral diameter R1 of the first teeth portion 23b. An inner peripheral surface 23c of the first teeth portion 23b is a radially inner side surface of the first teeth portion 23b.

[0032] For example, as shown in Fig. 5, when the driver 13 is viewed from the outside in the drive shaft direction, the inner peripheral surface 23c of the first teeth portion 23b is formed into a circle. That is, the inner peripheral diameter R1 of the first teeth portion 23b is the diameter of a circle formed by the inner peripheral surface 23c of the first teeth portion 23b.

[0033] In the spinning reel 1 having the above configuration, as described above, the drive shaft 21, drive gear 23, and sliding gear 25 are integrally formed by forging. In this configuration, the drive shaft 21, drive gear 23, and sliding gear 25 are preferably formed as follows.

[0034] As shown in Fig. 4, the axial distance D1 between the tooth tip 23d of the first tooth portion 23b and the side surface 25c of the second tooth portion 25b is equal to or smaller than the tooth tip diameter R2 of the second tooth portion 25b and is equal to or larger than 20% of the inner peripheral diameter R1 of the first tooth portion 23b. Under this condition, the axial distance D1 is preferably in the range of 5 mm to 12 mm. The side surface 25c of the second tooth portion 25b is a side surface formed on the first tooth portion 23b side in the drive shaft direction.

[0035] The tooth tip diameter R2 of the second teeth portion 25b is 30% or more and 50% or less of the inner peripheral diameter R1 of the first teeth portion 23b. Under this condition, it is preferable that the difference (=R1-R2) between the inner peripheral diameter R1 of the first teeth portion 23b and the tooth tip diameter R2 of the second teeth portion 25b is 4 mm or more and 15 mm or less.

[0036] The ratio P (=R3 / R2) of the diameter R3 of the drive shaft 21 to the tip diameter R2 of the second tooth portion 25b is 50% or more and 70% or less. Under this condition, the diameter R3 of the drive shaft 21 is preferably 6 mm or more and 12 mm or less.

[0037] The diameter R3 of the drive shaft 21 is preferably defined at the thinnest portion of the drive shaft 21. For example, in FIG. 4, the portion of the drive shaft 21 between the drive gear 23 and the sliding gear 25 is the thinnest portion of the drive shaft 21.

[0038] The above-mentioned spinning reel 1 has the following features.

[0039] In the spinning reel 1, the sliding gear 25 for moving the spool shaft 9 is formed integrally with the drive shaft 21, making it possible to reduce the size of the reel body 3 compared to the prior art. Also, in the spinning reel 1, the drive body 13 (drive shaft 21, drive gear 23, and sliding gear 25) is formed by forging, making it possible to form a drive body 13 with higher strength compared to the prior art.

[0040] In the spinning reel 1, the axial distance D1 between the tooth tip 23d of the first teeth portion 23b and the side surface 25c of the second teeth portion 25b is equal to or less than the tooth tip diameter R2 of the second teeth portion 25b and is equal to or more than 20% of the inner diameter R1 of the first teeth portion 23b. By configuring in this manner, a high-strength driver 13 can be suitably formed by forging.

[0041] Furthermore, in the spinning reel 1, the axial distance D1 is in the range of 5 mm or more and 12 mm or less. By adopting this configuration, a high-strength driver 13 can be more suitably formed by forging.

[0042] In the spinning reel 1, the tooth tip diameter R2 of the second teeth portion 25b relative to the inner peripheral diameter R1 of the first teeth portion 23b is 30% or more and 50% or less. By configuring in this manner, a high-strength driver 13 can be suitably formed by forging.

[0043] In the spinning reel 1, the difference (=R1-R2) between the inner diameter R1 of the first tooth portion 23b and the tooth tip diameter R2 of the second tooth portion 25b is 4 mm or more and 15 mm or less. By configuring in this manner, a high-strength driver 13 can be more suitably formed by forging.

[0044] In the spinning reel 1, the ratio P (=R3 / R2) of the diameter R3 of the drive shaft 21 to the tooth tip diameter R2 of the second tooth portion 25b is 50% or more and 70% or less. By configuring in this manner, a high-strength driver 13 can be suitably formed by forging.

[0045] Furthermore, in the spinning reel 1, the diameter R3 of the drive shaft 21 is 6 mm or more and 12 mm or less. In this case, since the driver 13 is formed by forging, the diameter R3 of the drive shaft 21 is smaller than in the prior art. This allows the outer diameter of the sliding gear 25 provided on the drive shaft 21 to be smaller, so the reel body 3 can be made smaller than in the prior art. [Industrial Applicability]

[0046] INDUSTRIAL APPLICABILITY The present invention can be used in a spinning reel having a first gear for rotating a rotor and a second gear for moving a spool shaft. [Explanation of symbols]

[0047] 1. Spinning reel 3 Reel body 7 Rotor 9 Spool shaft 13 Driver 21 Drive shaft 23 Drive gear 23a First disc section 23b 1st tooth part 23c Inner surface of first tooth portion 23d Tip of the first tooth part 25 Sliding gear 25a Second disc section 25b 2nd tooth part 25c Side of second tooth D1 Axial spacing P ratio R1 Inner diameter of the first tooth R2 Tip diameter of second tooth R3 Drive shaft diameter

Claims

1. The reel body, A rotor rotatably configured on the reel body; a spool shaft configured to be movable forward and backward relative to the reel body in a spool axial direction along which a spool axis extends; a drive body in which a shaft portion extending in a drive shaft direction intersecting the spool shaft direction, a first gear provided on an outer peripheral surface of the shaft portion for rotating the rotor, and a second gear provided on the outer peripheral surface of the shaft portion at a distance from the first gear in the drive shaft direction for moving the spool are integrally formed by forging; Equipped with The shaft portion has a hole portion extending from one end of the shaft portion to the other end of the shaft portion in the drive shaft direction, the first gear has a first disk portion provided on an outer circumferential surface of the shaft portion, and a first tooth portion protruding from the first disk portion toward the second gear in the drive shaft direction, the second gear has a second disk portion provided on an outer circumferential surface of the shaft portion at a distance from a tip of the first tooth portion in the drive shaft direction, and a second tooth portion protruding from the second disk portion in a radial direction away from an axis of the shaft portion and having a tooth tip diameter smaller than an inner circumferential diameter of the first tooth portion, The shaft portion is a first shaft portion provided inside the first disk portion in the radial direction; a second shaft portion provided inside the second disk portion in the radial direction, The thickness of the second shaft portion is greater than the thickness of the first shaft portion. Spinning reel.

2. an axial distance between a tooth tip of the first tooth portion and a side surface of the second tooth portion is equal to or smaller than a tooth tip diameter of the second tooth portion and is equal to or larger than 20% of an inner peripheral diameter of the first tooth portion; 2. The spinning reel of claim 1.

3. The axial spacing is in the range of 5 mm or more and 12 mm or less.

3. The spinning reel according to claim 2.

4. A tooth tip diameter of the second tooth portion relative to an inner peripheral diameter of the first tooth portion is 30% or more and 50% or less. A spinning reel according to any one of claims 1 to 3.

5. A difference between an inner diameter of the first tooth portion and a tooth tip diameter of the second tooth portion is 4 mm or more and 15 mm or less.

5. The spinning reel according to claim 4.

6. A ratio of a diameter of the shaft portion to a tooth tip diameter of the second tooth portion is 50% or more and 70% or less. A spinning reel according to any one of claims 1 to 5.

7. The diameter of the shaft portion is 6 mm or more and 12 mm or less.

7. The spinning reel according to claim 6.

Citation Information

Patent Citations

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