Fishing reels

By using a second shaft member that is inserted into the rolling element and seal member, the fishing reel enhances its waterproof performance, addressing the issue of water penetration in existing designs.

JP7666976B2Active Publication Date: 2025-04-22SHIMANO INC
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Patent Information

Application Number
JP2021072515
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2021-04-22
Publication Date
2025-04-22
Estimated Expiration
2041-04-22

AI Technical Summary

Technical Problem

Existing fishing reel designs face challenges in maintaining waterproof performance due to the risk of water penetration through the seal member when the spool shaft is inserted into the rolling element.

Method used

The fishing reel incorporates a second shaft member that is inserted into the rolling element and seal member, allowing for secure placement without the risk of the seal member being turned inside the rolling element, thereby enhancing waterproof performance.

Benefits of technology

This configuration effectively improves the waterproof performance of the seal member by preventing water from penetrating from the spool shaft to the rolling element, ensuring a more reliable sealing mechanism.

✦ Generated by Eureka AI based on patent content.

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Abstract

To provide a fishing reel that can improve waterproof performance of a seal member.SOLUTION: A double bearing reel 1 comprises a reel body 3, a spool shaft 11, a connection shaft 13, a rolling body 15, and an outer member 17. The spool shaft 11 is rotatably supported by the reel body 3. The connection shaft 13 is connected to an end part of the spool shaft 11 in an axial direction in which a first axis X1 of the spool shaft 11 extends. The connection shaft 13 rotates integrally with the spool shaft 11. The rolling body 15 is in contact with the connection shaft 13 in a radial direction away from the first axis X1 of the spool shaft 11. The outer member 17 is arranged outside the rolling body 15 in the radial direction. The outer member 17 rotates integrally with the connection shaft 13 in only one direction in a circumferential direction around the first axis X1 of the spool shaft 11.SELECTED DRAWING: Figure 4
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Description

[Technical field]

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

[0002] A fishing reel, for example the dual-bearing reel disclosed in Patent Document 1, includes a reel body, a spool shaft, and a one-way clutch. The spool shaft is rotatably supported by the reel body.

[0003] The one-way clutch has a rolling element and an outer member. The rolling element contacts the spool shaft in a radial direction. The outer member functions as an outer ring of the rolling element. The outer member is disposed radially outward of the rolling element. The outer member rotates integrally with the spool shaft in only one circumferential direction. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 6560903 Summary of the Invention [Problem to be solved by the invention]

[0005] In the configuration of the conventional technology, the spool shaft is inserted into the rolling elements of the one-way clutch. For example, when attempting to arrange a seal member for the rolling elements in the configuration of the conventional technology, the spool shaft is inserted inside the rolling elements with the seal member arranged axially adjacent to the rolling elements. In this case, when the spool shaft is inserted into the rolling elements, there is a risk that the seal member will be turned inside the rolling elements. In other words, in the configuration of the conventional technology, there is a risk that water flowing from the spool shaft toward the rolling elements will penetrate inside the rolling elements.

[0006] An object of the present invention is to provide a fishing reel that can improve the waterproof performance of the seal member. [Means for solving the problem]

[0007] A fishing reel according to one aspect of the present invention includes a reel body, a first shaft member, a second shaft member, rolling elements, and an outer member. The first shaft member is rotatably supported by the reel body. The second shaft member is connected to an end of the first shaft member in an axial direction in which the axis of the first shaft member extends. The second shaft member rotates integrally with the first shaft member.

[0008] The rolling elements contact the second shaft member in a radial direction away from the axis of the first shaft member. The outer member is disposed outside the rolling elements in the radial direction. The outer member rotates integrally with the second shaft member in only one direction in the circumferential direction around the axis of the first shaft member.

[0009] In the fishing reel of the present invention, with the second shaft member inserted into the rolling elements, the second shaft member is inserted into the seal member and connected to the first shaft member. This allows the seal member to be positioned without being rolled up inside the rolling elements as in the configuration of the prior art. This allows the seal member to effectively stop water flowing from the first shaft member toward the rolling elements. In other words, the waterproof performance of the seal member can be improved.

[0010] In a fishing reel according to another aspect of the present invention, the first shaft member preferably has a recess provided at an end of the first shaft member. In this case, the second shaft member has an axle body that contacts the rolling elements, and an engagement portion that is provided on the axle body and engages with the recess. In this configuration, the engagement portion of the second shaft member engages with the recess of the first shaft member, thereby allowing the second shaft member to rotate integrally with the first shaft member.

[0011] The fishing reel according to another aspect of the present invention preferably further includes a seal member. In this case, the seal member contacts the second shaft member between the first shaft member and the rolling body in the axial direction in which the axis of the first shaft member extends. With this configuration, the seal member can effectively stop water flowing from the first shaft member toward the rolling body.

[0012] In a fishing reel according to another aspect of the present invention, it is preferable that the second shaft member has a small diameter portion. In this case, the small diameter portion is provided between the shaft body and the engagement portion. The small diameter portion has a smaller diameter than the shaft body. The tip of the seal member contacts the small diameter portion. In this configuration, since the tip of the seal member contacts the small diameter portion, the seal member can more effectively stop water flowing from the first shaft member toward the rolling elements.

[0013] In a fishing reel according to another aspect of the present invention, the first shaft member is preferably a spool shaft. In this case, the outer member receives frictional force from a member whose rotation is restricted relative to the reel body. In this configuration, since the first shaft member is the spool shaft, the second shaft member is connected to the spool shaft. In this case, the seal member can effectively stop water flowing from the spool shaft toward the rolling elements. Effect of the Invention

[0014] According to the present invention, the waterproof performance of the seal member in a fishing reel can be improved. [Brief description of the drawings]

[0015] [Figure 1] FIG. [Diagram 2] Cross-sectional view of a dual-bearing reel. [Diagram 3] FIG. 2 is an exploded perspective view illustrating a spool shaft, a connecting shaft, and peripheral members related to the spool shaft and the connecting shaft. [Figure 4] FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0016] An embodiment of a dual-bearing reel 1 (an example of a fishing reel) according to the present invention will now be described with reference to the drawings. As shown in Fig. 1, dual-bearing reel 1 comprises a reel body 3, a spool 5, a handle 7, and an operating lever 9. As shown in Fig. 2, dual-bearing reel 1 further comprises a spool shaft 11, a connecting shaft 13 (an example of a second shaft member), rolling elements 15, an outer member 17, and a seal member 19. Dual-bearing reel 1 further has a cylindrical member 21. In this embodiment, rolling elements 15 and outer member 17 form a one-way clutch 23.

[0017] The axial direction is the direction in which a first axis X1 (an example of an axis) of a spool shaft 11 (an example of a first shaft member) described later extends. The radial direction is the direction perpendicularly away from the first axis X1 of the spool shaft 11. The circumferential direction is the direction around the first axis X1 of the spool shaft 11.

[0018] As shown in FIG. 2, the reel body 3 has a frame 31, a first side cover 33, and a second side cover 35. The frame 31 has a first side plate 31a, a second side plate 31b, and a plurality of connecting portions 31c. The first side plate 31a and the second side plate 31b are arranged at intervals from each other in the axial direction. The first side plate 31a and the second side plate 31b are connected to each other via the plurality of connecting portions 31c. The first side plate 31a, the second side plate 31b, and the plurality of connecting portions 31c are integrally formed.

[0019] The first side cover 33 covers the first side plate 31a. For example, the first side cover 33 has a cover body 33a and a protruding portion 33b. The cover body 33a covers the first side plate 31a between the handle 7 and the first side plate 31a. The protruding portion 33b protrudes axially outward from the cover body 33a. The protruding portion 33b is formed in a cylindrical shape. The protruding portion 33b communicates from the internal space of the first side cover 33 and the first side plate 31a to the external space. The second side cover 35 covers the second side plate 31b. In detail, the second side cover 35 covers the second side cover 35 on the side opposite to the handle 7.

[0020] 2, the spool 5 is rotatably supported by the reel body 3. For example, the spool 5 is attached to the spool shaft 11 so as to rotate integrally with the spool shaft 11. In other words, the spool 5 is rotatably supported by the reel body 3 via the spool shaft 11.

[0021] The handle 7 shown in FIG. 1 is a member for rotating the spool shaft 11. The handle 7 is attached to the reel body 3. For example, the handle 7 is rotatably supported by the reel body 3 via a drive shaft 10a shown in FIG. 2. For example, when the handle 7 and the drive shaft 10a rotate, the spool shaft 11 and the spool 5 rotate via the rotation transmission mechanism 10.

[0022] 2, the rotation transmission mechanism 10 is disposed in the internal space between the first side cover 33 and the first side plate 31a. The rotation transmission mechanism 10 is a mechanism that transmits the rotation of the handle 7 to the spool shaft 11. The rotation transmission mechanism 10 has a drive shaft 10a, a drive gear 10b, and a pinion gear 10c.

[0023] The drive shaft 10a is rotatably supported by the first side plate 31a and the first side cover 33. The drive shaft 10a rotates integrally with the handle 7. The drive gear 10b rotates integrally with the drive shaft 10a.

[0024] The pinion gear 10c is rotatably supported by the first side plate 31a and the first side cover 33 via a plurality of bearings 61a, 61b. The pinion gear 10c meshes with the drive gear 10b. The pinion gear 10c is formed in a cylindrical shape. The spool shaft 11 is inserted into the inner periphery of the pinion gear 10c.

[0025] The pinion gear 10c is guided axially along the spool shaft 11 by the clutch yoke 12. Rotation from the pinion gear 10c to the spool shaft 11 is transmitted by engagement between an engagement pin 10d1 of the spool shaft 11 and an engagement recess 10d2 of the pinion gear 10c. When the engagement between the engagement pin 10d1 and the engagement recess 10d2 is released, the rotation of the pinion gear 10c is not transmitted to the spool shaft 11.

[0026] As shown in Figures 1 and 2, the operating lever 9 is attached to the reel body 3. For example, as shown in Figure 2, the operating lever 9 is attached to the protruding portion 33b of the first side cover 33. In detail, the operating lever 9 is attached so as to be able to swing relative to the protruding portion 33b. As the operating lever 9 swings, the outer member 17 is pressed in the axial direction. For example, as the operating lever 9 swings, the outer member 17 is pressed in the axial direction via the first friction plate 18a.

[0027] The spool shaft 11 rotates integrally with the spool 5. As shown in Fig. 2, the spool shaft 11 is rotatably supported by the reel body 3. For example, the spool shaft 11 is rotatably supported by the reel body 3 via a plurality of bearings 71a, 71b.

[0028] 2, 3, and 4, the spool shaft 11 has a first shaft body 11a and a recess 11b. The first shaft body 11a has a first axis X1.

[0029] As shown in Fig. 2, spool 5 is attached to first shaft body 11a so as to rotate integrally therewith. A central portion of first shaft body 11a is rotatably supported by first side plate 31a via bearing 71a. An end portion of first shaft body 11a provided on the opposite side to handle 7 is rotatably supported by bearing member 31d via bearing 71b. Bearing member 31d is attached to second side plate 31b.

[0030] 2 and 4, the first shaft body 11a is inserted into the inner periphery of the pinion gear 10c. For example, a portion of the first shaft body 11a on the handle 7 side is inserted into the pinion gear 10c.

[0031] 4, an annular stepped portion 11c is provided at the end of the first shaft body 11a on the handle 7 side. The stepped portion 11c is disposed at a distance from the inner circumferential surface of the pinion gear 10c in the radial direction. A cylindrical member 21 is disposed in the stepped portion 11c.

[0032] 2, 3, and 4, recess 11b is provided at an end of spool shaft 11. For example, recess 11b is provided at an end of first shaft body 11a on the handle 7 side. Recess 11b is a groove extending in the radial direction.

[0033] The connecting shaft 13 rotates integrally with the spool shaft 11. As shown in Figures 2 and 4, the connecting shaft 13 is connected to the spool shaft 11. For example, the connecting shaft 13 is connected to an end of the first shaft body 11a on the handle 7 side in the axial direction.

[0034] 3 and 4, the connecting shaft 13 has a second shaft body 13a (an example of a shaft body), an engagement portion 13b, and a small diameter portion 13c. The connecting shaft 13 further has an annular portion 13d. As shown in FIG. 4, the second shaft body 13a is disposed radially inside the rolling elements 15. The second shaft body 13a contacts the rolling elements 15.

[0035] For example, as shown in Figures 3 and 4, the second shaft body 13a is formed in a cylindrical shape. The second shaft body 13a has a second axis X2. As shown in Figure 4, when the connecting shaft 13 is connected to the spool shaft 11, the second axis X2 is arranged concentrically with the first axis X1 of the spool shaft 11.

[0036] As shown in Figures 3 and 4, engaging portion 13b is provided on second shaft body 13a. For example, engaging portion 13b is provided on second shaft body 13a via small diameter portion 13c. As shown in Figure 4, engaging portion 13b engages with recess 11b of spool shaft 11. For example, engaging portion 13b engages with recess 11b provided on the end of first shaft body 11a on the handle 7 side.

[0037] 3, the cross section of the engaging portion 13b is formed in a non-circular shape, for example, a rectangular shape. The rectangular engaging portion 13b and the groove-like recess 11b engage with each other, so that the second shaft body 13a of the connecting shaft 13 rotates integrally with the first shaft body 11a of the spool shaft 11.

[0038] As shown in Figures 3 and 4, the small diameter portion 13c is provided between the second shaft body 13a and the engaging portion 13b. In detail, the small diameter portion 13c is provided between the second shaft body 13a and the annular portion 13d. The small diameter portion 13c is formed in a cylindrical shape. The outer diameter of the small diameter portion 13c is smaller than the outer diameter of the second shaft body 13a. The annular portion 13d is provided between the engaging portion 13b and the small diameter portion 13c. The outer diameter of the annular portion 13d is larger than the outer diameter of the small diameter portion 13c.

[0039] The cylindrical member 21 restricts the engagement portion 13b of the connecting shaft 13 from moving radially within the recess 11b of the spool shaft 11. As shown in FIG. 4, the cylindrical member 21 is disposed radially between the end of the spool shaft 11 on the handle 7 side and the pinion gear 10c. For example, the cylindrical member 21 is disposed radially between the step portion 11c of the first shaft body 11a and the inner circumferential surface of the pinion gear 10c. When the recess 11b of the spool shaft 11 and the engagement portion 13b of the connecting shaft 13 are engaged with each other, the end of the cylindrical member 21 is disposed on the outer circumferential surface of the annular portion 13d of the connecting shaft 13.

[0040] 2 and 4, the one-way clutch 23 is attached to the connecting shaft 13. The one-way clutch 23 is disposed between the connecting shaft 13 and the protruding portion 33b of the first side cover 33 in a radial direction away from the second axis X2 of the connecting shaft 13.

[0041] 2, 3, and 4, the one-way clutch 23 has a rolling element 15 and an outer member 17. As shown in Fig. 2 and Fig. 4, the rolling element 15 is disposed between the connecting shaft 13 and the outer member 17. For example, as shown in Fig. 4, the rolling element 15 is disposed between the second shaft body 13a of the connecting shaft 13 and the outer member 17.

[0042] The rolling elements 15 come into contact with the connecting shaft 13 in the radial direction. For example, when the connecting shaft 13 is connected to the spool shaft 11, the rolling elements 15 come into contact with the second shaft body 13a of the connecting shaft 13 in the radial direction away from the first axis X1 of the spool shaft 11. When the connecting shaft 13 is not connected to the spool shaft 11, the rolling elements 15 come into contact with the second shaft body 13a of the connecting shaft 13 in the radial direction away from the second axis X2 of the connecting shaft 13.

[0043] With the rolling element 15 in contact with the connecting shaft 13, when the connecting shaft 13 rotates in the line winding direction, the rolling element 15 rotates relative to the outer member 17. That is, in this case, the rolling element 15 does not transmit the rotation of the connecting shaft 13 in the line winding direction to the outer member 17. On the other hand, when the connecting shaft 13 rotates in the line reeling direction, the rolling element 15 transmits the rotation of the connecting shaft 13 in the line reeling direction to the outer member 17.

[0044] The outer member 17 is configured to be rotatable integrally with the connecting shaft 13 only in one direction in the circumferential direction. For example, when the connecting shaft 13 rotates together with the spool shaft 11 in the line-releasing direction, the rolling elements 15 transmit the rotation in the line-releasing direction to the outer member 17. In other words, the outer member 17 rotates integrally with the connecting shaft 13 only in the line-releasing direction. For this reason, in this embodiment, the above-mentioned "one direction" corresponds to the "line-releasing direction".

[0045] 2 and 4, the outer member 17 is disposed radially outward of the rolling elements 15. The outer member 17 is rotatable relative to the reel body 3. For example, the outer member 17 is rotatable relative to the protrusion 33b of the first side cover 33.

[0046] The outer member 17 receives a frictional force from a member whose rotation is restricted relative to the reel body 3. For example, as shown in Figures 3 and 4, the outer member 17 is sandwiched between a first friction plate 18a and a second friction plate 18b in the axial direction. That is, the rotation of the outer member 17 is braked by the first friction plate 18a and the second friction plate 18b.

[0047] The first friction plate 18a is attached to the operating lever 9 so as to be non-rotatable. The first friction plate 18a is disposed between the outer member 17 and the operating lever 9 in the axial direction. The first friction plate 18a is an annular plate member. The first friction plate 18a contacts the outer member 17 and the operating lever 9 in the axial direction. The first friction plate 18a does not contact the rolling elements 15.

[0048] The second friction plates 18b are non-rotatably attached to the protruding portion 33b of the first side cover 33. For example, the multiple (e.g., two) second friction plates 18b are arranged in the axial direction between the outer member 17 and the seal member 19. In detail, the multiple second friction plates 18b are arranged in the axial direction between the outer member 17 and a flange portion 33c provided on the inner circumferential surface of the protruding portion 33b.

[0049] The second friction plates 18b are annular plate members. One of the second friction plates 18b is in axial contact with the outer member 17 and is not in contact with the rolling elements 15. The other second friction plate 18b is in axial contact with the flange portion 33c of the protruding portion 33b.

[0050] 4, the seal member 19 is disposed axially between the spool shaft 11 and the rolling elements 15. In this state, the seal member 19 contacts the connecting shaft 13.

[0051] 3, the seal member 19 is formed in an annular shape. The outer circumferential portion of the seal member 19 is disposed between the spool shaft 11 and the outer member 17 in the axial direction. For example, the outer circumferential portion of the seal member 19 contacts the flange portion 33c of the protruding portion 33b in the axial direction. The tip of the seal member 19 is disposed between the spool shaft 11 and the rolling elements 15 in the axial direction. In this state, the tip of the seal member 19, for example, the inner circumferential surface of the seal member 19, contacts the small diameter portion 13c of the connecting shaft 13.

[0052] 3 and 4, a positioning member 25 is disposed between the seal member 19 and the bearing 61a. For example, the positioning member 25 is formed in a cylindrical shape. The positioning member 25 contacts the outer periphery of the seal member 19 and the outer ring of the bearing 61a in the axial direction. The positioning member 25 restricts the movement of the seal member 19 in the axial direction.

[0053] In the dual-bearing reel 1 having the above configuration, first, the connecting shaft 13 is inserted into the rolling elements 15 of the one-way clutch 23. In this manner, the one-way clutch 23 and the connecting shaft 13 are configured as one unit.

[0054] In this state, the connecting shaft 13 is inserted into the seal member 19 arranged on the protruding portion 33b of the first side cover 33, and is connected to the spool shaft 11. This allows the seal member 19 to be arranged without being rolled up inside the rolling elements 15 as in the configuration of the prior art. This allows the seal member 19 to effectively stop water flowing from the spool shaft 11 toward the rolling elements 15. In other words, the waterproof performance of the seal member 19 can be improved.

[0055] Furthermore, by engaging the engaging portion 13b of the connecting shaft 13 with the recess 11b of the spool shaft 11, the connecting shaft 13 and the spool shaft 11 can be rotated integrally.

[0056] In addition, since the sealing member 19 is arranged axially between the spool shaft 11 and the rolling elements 15 and contacts the connecting shaft 13, the sealing member 19 can effectively stop water flowing from the spool shaft 11 to the rolling elements 15.

[0057] Furthermore, since the tip of the seal member 19 contacts the small diameter portion 13c of the connecting shaft 13, the seal member 19 can more effectively stop water flowing from the spool shaft 11 toward the rolling elements 15.

[0058] Furthermore, even in a configuration in which the outer member 17 receives frictional force from the first friction plate 18a and the second friction plate 18b, the connecting shaft 13 can be inserted into the seal member 19 and connected to the spool shaft 11. That is, even in this configuration, the seal member 19 can suitably stop water flowing from the spool shaft 11 toward the rolling elements 15. [Explanation of symbols]

[0059] 1 Double bearing reel 3 Reel body 5 Spool 9 Operating lever 11 Spool shaft 11b Recess 13 Connecting shaft 13b Engagement part 15 Rolling elements 17 Outer material 19 Sealing material 23 One-way clutch 18a First friction plate 18b Second friction plate X1 1st axis center X2 2nd axis center

Claims

1. The reel body, a first shaft member rotatably supported by the reel body; a second shaft member that is connected to an end of the first shaft member in an axial direction in which an axis of the first shaft member extends and rotates integrally with the first shaft member; A rolling element that contacts the second shaft member in a radial direction away from the axis; an outer member that is disposed outside the rolling elements in the radial direction and rotates integrally with the second shaft member in only one direction in the circumferential direction around the axis; a seal member that contacts the second shaft member between the first shaft member and the rolling elements in the axial direction; A fishing reel comprising:

2. The first shaft member has a recess provided at an end portion, The second shaft member has a shaft body that contacts the rolling elements and an engagement portion that is provided on the shaft body and engages with the recess.

2. The fishing reel of claim 1.

3. the second shaft member has a small diameter portion that is provided between the shaft body and the engagement portion and has a smaller diameter than the shaft body, The tip of the seal member contacts the small diameter portion.

3. The fishing reel according to claim 2.

4. the first shaft member is a spool shaft, The outer member receives a frictional force from a member whose rotation is restricted relative to the reel body. A fishing reel according to any one of claims 1 to 3.

Citation Information

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