Spinning type winding wheel

By using a forging process to integrally form the drive shaft, drive gear, and sliding gear, the problems of large size of the winding wheel body and insufficient strength of the drive gear were solved, thus realizing the miniaturization and high strength design of the winding wheel.

CN114642193BActive Publication Date: 2026-07-31SHIMANO INC +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
SHIMANO INC
Filing Date
2021-12-17
Publication Date
2026-07-31

AI Technical Summary

Technical Problem

Existing spinning winding wheels suffer from problems such as large body size and insufficient strength of drive gears. In particular, when the drive shaft and sliding gear are integrally formed, it is difficult to guarantee the strength of the drive gear and avoid crushing of the internal thread.

Method used

The drive shaft, drive gear, and sliding gear are integrally formed by forging. The tooth tip diameter and side spacing of the first and second gears are designed to meet a specific ratio, and a high-strength drive body is formed by forging.

Benefits of technology

This design achieves miniaturization of the winding wheel body and high strength of the drive unit, reduces the diameter of the drive shaft and the outer diameter of the sliding gear, and improves the overall strength and compactness of the structure.

✦ Generated by Eureka AI based on patent content.

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Abstract

This invention provides a spinning winding wheel that enables miniaturization of the winding wheel body and forms a high-strength drive body. The spinning winding wheel (1) includes a winding wheel body (3), a rotor (7), a spool (9), and a drive body (13). The drive body (13) has a drive shaft (21), a drive gear (23) disposed on the drive shaft (21) to rotate the rotor (7), and a sliding gear (25) disposed on the drive shaft (21) to move the spool (9). In the drive body (13), the drive shaft (21), the drive gear (23), and the sliding gear (25) are integrally formed by forging.
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Description

Technical Field

[0001] This invention relates to a spinning reel. Background Technology

[0002] Conventional spinning reels disclose a drive unit for rotating the rotor and moving the spool shaft (see Patent Document 1). The drive unit includes a drive shaft, a drive gear, and a sliding gear. The drive gear, used to rotate the rotor, is integrally formed with the drive shaft. The sliding gear, used to move the spool shaft, is separately provided on the drive shaft.

[0003] Patent document 1: Japanese Patent Application Publication No. 2002-34397.

[0004] In the spinning type winding wheel of Patent Document 1, the sliding gear is separately mounted on the drive shaft. In this case, space is required between the inner circumferential surface of the sliding gear and the outer circumferential surface of the drive shaft for mounting the sliding gear to the outer surface of the drive shaft. Therefore, the outer diameter of the sliding gear becomes larger. Furthermore, the outer diameter of the linkage gear meshing with the sliding gear also becomes larger. That is, it is possible to increase the size of the main body of the spinning type winding wheel.

[0005] On the other hand, there are cases where the drive gear and sliding gear are integrally formed with the drive shaft through casting, such as zinc die casting. Here, the drive gear rotates the rotor, so it requires a certain level of strength. However, when the drive gear is integrally formed with the drive shaft through casting, there is a possibility that the strength of the drive gear cannot be adequately ensured. Furthermore, if a handle capable of being rolled with high torque is screwed into a drive shaft formed through casting, there is a possibility that the internal threads of the drive shaft may be crushed. Summary of the Invention

[0006] The present invention was made in view of the above-mentioned problems. The object of the present invention is to provide a spinning winding wheel that can achieve miniaturization of the winding wheel body and form a high-strength drive body.

[0007] One aspect of the present invention provides a spinning reel comprising a reel body, a rotor, a spool, and a drive unit. The rotor is configured to rotate relative to the reel body. The spool is configured to move forward and backward relative to the reel body. The drive unit has a shaft portion, a first gear disposed on the shaft portion for rotating the rotor, and a second gear disposed on the shaft portion for moving the spool. In the drive unit, the shaft portion, the first gear, and the second gear are integrally formed by forging.

[0008] The first gear has a first circular plate portion disposed on the outer circumferential surface of the shaft portion, and a first tooth portion protruding axially from the first circular plate portion toward the second gear side. The second gear has a second circular plate portion disposed at a distance from the first circular plate portion on the outer circumferential surface of the shaft portion, and a second tooth portion protruding radially from the second circular plate portion away from the axis of the shaft portion. The tip diameter of the second tooth portion is smaller than the inner circumferential diameter of the first tooth portion.

[0009] In the spinning-type winding wheel of the present invention, the second gear for moving the spool shaft is integrally formed with the shaft portion, thus enabling the winding wheel body to be miniaturized compared to the prior art. Furthermore, in the spinning-type winding wheel of the present invention, the drive body (shaft portion, first gear, and second gear) is formed by forging, thus enabling the formation of a high-strength drive body compared to the prior art.

[0010] In other embodiments of the spinning winding reel of the present invention, preferably, the axial distance between the tip of the first tooth and the side of the second tooth is less than the tip diameter of the second tooth and more than 20% of the inner circumference of the first tooth. With this configuration, a high-strength drive body can be suitably formed by forging.

[0011] In other embodiments of the spinning winding reel of the present invention, preferably, the aforementioned axial spacing is in the range of 5 mm or more and 12 mm or less. This configuration allows for the more suitable forging of a high-strength drive body.

[0012] In other embodiments of the spinning winding reel of the present invention, preferably, the tip diameter of the second tooth is 30% or more and 50% or less relative to the inner circumference of the first tooth. With this configuration, a high-strength drive body can be suitably formed by forging.

[0013] In other embodiments of the spinning winding reel of the present invention, preferably, the difference between the inner circumference of the first tooth and the tip diameter of the second tooth is 4 mm or more and 15 mm or less. With this configuration, a high-strength drive body can be more appropriately formed by forging.

[0014] In other embodiments of the spinning winding reel of the present invention, preferably, the ratio of the diameter of the shaft portion to the tooth tip diameter of the second tooth portion is 50% or more and 70% or less. With this configuration, a high-strength drive body can be suitably formed by forging.

[0015] In other embodiments of the spinning winding reel of the present invention, the diameter of the shaft portion is preferably 6 mm or more and 12 mm or less. In this case, the drive body is formed by forging, so the diameter of the shaft portion can be smaller than that of the prior art. As a result, the outer diameter of the second gear provided on the shaft portion can also be reduced, so the main body of the winding reel can be miniaturized compared with the prior art.

[0016] Invention Effects

[0017] According to the present invention, the main body of the spinning winding wheel can be miniaturized and a high-strength drive body can be formed in the spinning winding wheel. Attached Figure Description

[0018] Figure 1 This is a side view of a spinning reel according to an embodiment of the present invention.

[0019] Figure 2 This is a side view with the side cover and drive unit removed from the spinning reel.

[0020] Figure 3 It is a 3D diagram of the driving body.

[0021] Figure 4 It is a cross-sectional view of the driving body.

[0022] Figure 5 This is the main view of the driver. Detailed Implementation

[0023] The spinning type winding wheel 1 according to one embodiment of the present invention is as follows: Figure 1 As shown, it includes a winding reel body 3, a rotor 7, and a drum shaft 9 (see reference). Figure 2 ), drive body 13 (refer to) Figure 2 In detail, the spinning reel 1 comprises a reel body 3, a handle 5, a rotor 7, and a drum shaft 9 (see reference). Figure 2 ), drum 11, drive body 13 (refer to) Figure 2 ).

[0024] like Figure 1 As shown, the handle 5 is rotatably supported on the winding reel body 3. In this embodiment, an example is shown where the handle 5 is positioned on the left side of the winding reel body 3, but the handle 5 can also be positioned on the right side of the winding reel body 3. Figure 2 As shown, a swing mechanism 15 for moving the spool 11 in the front-back direction is arranged inside the winding reel body 3. The swing mechanism 15 is essentially the same as the conventional structure, so its description is omitted here.

[0025] Rotor 7 is used to wind fishing line onto spool 11. For example... Figure 1 and Figure 2 As shown, rotor 7 is positioned at the front of the winding reel body 3. Rotor 7 is configured to rotate relative to the winding reel body 3. For example, as... Figure 2 As shown, the rotor 7 is rotatably connected to the planetary gear 17. The planetary gear 17 is rotatably supported on the winding reel body 3. The rotor 7 and the planetary gear 17 rotate in conjunction.

[0026] like Figure 2As shown, the spool 9 is configured to move forward and backward relative to the winding reel body 3. For example, the spool 9 is supported on the winding reel body 3 in a forward and backward manner. Specifically, the spool 9 is inserted into the inner circumference of the cylindrical planetary gear 17. The spool 9 reciprocates in the front-back direction relative to the winding reel body 3 through the operation of the oscillating mechanism 15. The front-back direction is the direction in which the spool axis X1 of the spool 9 extends.

[0027] The fishing line is wound around the reel 11. (Example) Figure 2 As shown, the drum 11 is configured to move integrally with the drum shaft 9. For example, the drum 11 is mounted on the end portion of the drum shaft 9.

[0028] like Figure 3 As shown, the drive body 13 has a drive shaft 21 (an example of a shaft), 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.

[0029] The drive shaft 21 rotates in conjunction with the rotation of the handle 5. The drive shaft 21 has a drive shaft center X2 (an example of a shaft center). The handle shaft 6 of the handle 5 (see reference). Figure 2 The handle shaft 6 is mounted on the drive shaft 21. For example, the drive shaft 21 is formed in a cylindrical shape. The handle shaft 6 is detachably mounted on the inner periphery of the drive shaft 21.

[0030] The drive gear 23 is used to rotate the rotor 7. For example... Figure 3 As shown, drive gear 23 is mounted on drive shaft 21. Drive gear 23 and planetary gear 17 (see reference) Figure 2 ) meshing.

[0031] like Figure 3 As shown, the drive gear 23 has a first circular plate portion 23a and a first tooth portion 23b. The first circular plate portion 23a is provided on the outer peripheral surface of the drive shaft 21. For example, the first circular plate portion 23a is integrally formed with the drive shaft 21 by forging.

[0032] The first tooth 23b protrudes from the first circular plate portion 23a toward the sliding gear 25 in the drive shaft direction. The first tooth 23b is integrally formed with the outer periphery of the first circular plate portion 23a by forging. The first tooth 23b is composed of multiple gear teeth. The drive shaft direction is the direction in which the drive shaft center X2 extends.

[0033] The sliding gear 25 is used to move the drum shaft 9. For example... Figure 3 As shown, the sliding gear 25 is mounted on the drive shaft 21. Figure 2 As shown, the sliding gear 25 meshes with the cam gear 22 of the swing mechanism 15. The swing mechanism 15 and the sliding gear 25 work in conjunction with each other in rotation.

[0034] like Figure 3 As shown, the sliding gear 25 has a second circular plate portion 25a and a second tooth portion 25b. The second circular plate portion 25a is disposed on the outer peripheral surface of the drive shaft 21 at a distance from the first circular plate portion 23a. For example, the second circular plate portion 25a is integrally formed with the drive shaft 21 by forging.

[0035] The second tooth 25b protrudes from the second circular plate 25a radially away from the drive shaft X2. The second tooth 25b is integrally formed with the outer periphery of the second circular plate 25a by forging. The second tooth 25b is composed of multiple gear teeth.

[0036] like Figure 4 and Figure 5 As shown, the tip diameter R2 of the second tooth 25b is smaller than the inner circumferential diameter R1 of the first tooth 23b. The inner circumferential surface 23c of the first tooth 23b is the radially inner side surface of the first tooth 23b.

[0037] For example, such as Figure 5 As shown, when viewing the drive body 13 from the outside in the drive shaft direction, the inner circumferential surface 23c of the first tooth 23b is formed into a circle. That is, the inner circumferential diameter R1 of the first tooth 23b is the diameter of the circle formed by the inner circumferential surface 23c of the first tooth 23b.

[0038] In the spinning type winding reel 1 having the above-described structure, as described above, the drive shaft 21, drive gear 23, and sliding gear 25 are integrally formed by forging. In this structure, the drive shaft 21, drive gear 23, and sliding gear 25 are preferably formed as described below.

[0039] like Figure 4 As shown, 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 less than or equal to the tooth tip diameter R2 of the second tooth portion 25b and more than 20% of the inner circumference diameter R1 of the first tooth portion 23b. Under this condition, the axial distance D1 is preferably in the range of 5 mm or more and 12 mm or less. The side surface 25c of the second tooth portion 25b is a side surface formed in the drive shaft direction on the side of the first tooth portion 23b.

[0040] The tip diameter R2 of the second tooth portion 25b is 30% or more and 50% or less relative to the inner circumference diameter R1 of the first tooth portion 23b. Under this condition, the difference (=R1-R2) between the inner circumference diameter R1 of the first tooth portion 23b and the tip diameter R2 of the second tooth portion 25b is preferably 4 mm or more and 15 mm or less.

[0041] The ratio P (=R3 / R2) of the diameter R3 of the drive shaft 21 to the tip diameter R2 of the second tooth 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.

[0042] The diameter R3 of the drive shaft 21 is preferably defined at its narrowest point. For example, Figure 4 The portion between the drive gear 23 and the sliding gear 25 of the drive shaft 21 is the thinnest part of the drive shaft 21.

[0043] The aforementioned spinning type winding wheel 1 has the following characteristics.

[0044] In the spinning type winding wheel 1, the sliding gear 25 for moving the spool shaft 9 is integrally formed with the drive shaft 21, so the winding wheel body 3 can be miniaturized compared with the prior art. In addition, in the spinning type winding wheel 1, the drive body 13 (drive shaft 21, drive gear 23 and sliding gear 25) is formed by forging, so a high-strength drive body 13 can be formed compared with the prior art.

[0045] Furthermore, in the spinning type winding wheel 1, 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 less than or equal to the tooth tip diameter R2 of the second tooth portion 25b, and more than 20% of the inner circumference diameter R1 of the first tooth portion 23b. With this configuration, a high-strength drive body 13 can be suitably formed by forging.

[0046] Furthermore, in the spinning type winding wheel 1, the axial spacing D1 is in the range of 5 mm or more and 12 mm or less. With this configuration, the high-strength drive body 13 can be more appropriately formed by forging.

[0047] Furthermore, in the spinning winding wheel 1, the tip diameter R2 of the second tooth 25b is 30% or more and 50% or less than the inner circumference diameter R1 of the first tooth 23b. With this configuration, a high-strength drive body 13 can be suitably formed by forging.

[0048] Furthermore, in the spinning type winding wheel 1, the difference (=R1-R2) between the inner circumference 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. With this configuration, the high-strength drive body 13 can be formed more suitablely by forging.

[0049] Furthermore, in the spinning type winding wheel 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 25b is 50% or more and 70% or less. With this configuration, a high-strength drive body 13 can be suitably formed by forging.

[0050] Furthermore, in the spinning type winding reel 1, the diameter R3 of the drive shaft 21 is 6 mm or more and 12 mm or less. In this case, the drive body 13 is formed by forging, so the diameter R of the drive shaft 21 is smaller than that of the prior art. As a result, the outer diameter of the sliding gear 25 provided on the drive shaft 21 can also be reduced, so the winding reel body 3 can be miniaturized compared with the prior art.

[0051] Industrial availability

[0052] The present invention can be used in a spinning reel having a first gear for rotating the rotor and a second gear for moving the spool shaft.

[0053] Explanation of reference numerals in the attached figures

[0054] 1 Spinning type winding reel

[0055] 3. Winding reel body

[0056] 7 rotors

[0057] 9. Roller shaft

[0058] 13 Driving Unit

[0059] 21 drive shafts

[0060] 23 Drive gear

[0061] 23a First circular plate section

[0062] 23b First tooth

[0063] 23c Inner circumferential surface of the first tooth

[0064] 23d Tooth tip of the first tooth

[0065] 25 Sliding gears

[0066] 25a Second circular plate section

[0067] 25b Second tooth

[0068] 25c Side of the second tooth

[0069] D1 Axial Spacing

[0070] P ratio

[0071] R1 Inner circumference of the first tooth

[0072] R2 Tooth tip diameter of the second tooth

[0073] R3 is the diameter of the drive shaft.

Claims

1. A spinning type winding reel, characterized in that, It consists of a winding reel body, a rotor, a drum shaft, and a drive unit. The aforementioned rotor is configured to rotate relative to the aforementioned winding wheel body. The aforementioned spool shaft is configured to move forward and backward relative to the aforementioned winding wheel body in the spool shaft direction extending from the spool shaft center. The aforementioned drive unit has a shaft portion extending along a drive shaft direction intersecting the aforementioned drum shaft direction, a first gear disposed on the outer peripheral surface of the aforementioned shaft portion for rotating the aforementioned rotor, and a second gear disposed on the outer peripheral surface of the aforementioned shaft portion at a distance from the aforementioned first gear in the aforementioned drive shaft direction for moving the aforementioned drum shaft. The aforementioned shaft portion, the aforementioned first gear, and the aforementioned second gear are integrally formed by forging. The aforementioned shaft portion has a hole portion extending from one end of the aforementioned shaft portion to the other end of the aforementioned shaft portion in the aforementioned drive shaft direction. The aforementioned first gear has a first circular plate portion provided on the outer peripheral surface of the aforementioned shaft portion, and a first tooth portion protruding from the aforementioned first circular plate portion toward the aforementioned second gear side in the aforementioned drive shaft direction. The aforementioned second gear has a second circular plate portion disposed on the outer peripheral surface of the aforementioned shaft portion at a distance from the aforementioned first tooth portion in the direction of the aforementioned drive shaft, and a second tooth portion protruding from the aforementioned second circular plate portion in a radial direction away from the axis of the aforementioned shaft portion and having a tooth tip diameter smaller than the inner peripheral diameter of the aforementioned first tooth portion. The aforementioned shaft portion includes: a first shaft portion disposed only inside the aforementioned first circular plate portion in the aforementioned radial direction, and a second shaft portion disposed only inside the aforementioned second circular plate portion in the aforementioned radial direction. The thickness of the second shaft portion is greater than the thickness of the first shaft portion.

2. The spinning type winding reel as described in claim 1, characterized in that, The axial distance between the tooth tip of the first tooth and the side of the second tooth is less than 20% of the tooth tip diameter of the second tooth and more than 20% of the inner circumference diameter of the first tooth.

3. The spinning type winding reel as described in claim 2, characterized in that, The aforementioned axial interval is in the range of 5 mm or more and 12 mm or less.

4. The spinning reel as described in any one of claims 1 to 3, characterized in that, The tooth tip diameter of the aforementioned second tooth is 30% or more and 50% or less than the inner circumference diameter of the aforementioned first tooth.

5. The spinning type winding reel as described in claim 4, characterized in that, The difference between the inner circumference of the first tooth and the tip diameter of the second tooth is 4 mm or more and 15 mm or less.

6. The spinning reel as described in any one of claims 1 to 3, characterized in that, The diameter of the aforementioned shaft portion is 50% or more and 70% or less relative to the tooth tip diameter of the aforementioned second tooth portion.

7. The spinning type winding reel as described in claim 6, characterized in that, The diameter of the aforementioned shaft is 6 mm or more and 12 mm or less.