Spinning reel for fishing

The fishing spinning reel's simplified connection structure between the drive gear shaft and handle shaft, utilizing integrated contact and wall portions, addresses the complexity and cost issues of conventional designs, achieving effective buckling suppression and cost reduction.

JP7699564B2Active Publication Date: 2025-06-27DAIWA SEIKO CORPORATION

Patent Information

Application Number
JP2022134428
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2022-08-25
Publication Date
2025-06-27
Estimated Expiration
2042-08-25

AI Technical Summary

Technical Problem

Conventional fishing spinning reels with a handle detachably attached to a reel body require a complex structure with multiple parts, leading to increased manufacturing costs and complexity, as well as difficulties in achieving high-precision assembly.

Method used

A simplified connection structure between the drive gear shaft and the handle shaft is achieved by integrating a contact portion on the handle shaft that contacts the end of the drive gear shaft, and a wall portion on the drive gear shaft that contacts the tip of the handle shaft, allowing for secure fixation without the need for additional annular members or high-precision press-fitting.

Benefits of technology

This configuration effectively suppresses buckling and reduces manufacturing costs by eliminating the need for high-dimensional accuracy in the drive gear shaft and annular member, while also improving productivity and reducing weight.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

To simplify a connection structure between a drive gear shaft and a handle shaft while properly suppressing progress of buckling, and attain cost reduction.SOLUTION: A fishing spinning reel 100 is structured so that a handle 3 can be attached to or detached from a reel body 1, and is provided with a drive gear shaft 2 provided to the reel body 1 and a handle shaft 31 screwed with the drive gear shaft 2 provided to the handle 3. The handle shaft 31 is integrally provided with an abutting part 36 abutting to edge parts 25e 26e of the drive gear shaft 2 by being screwed with the drive gear shaft 2. The drive gear shaft 2 is provided with a wall part 28 to which a tip end part 34c of the handle shaft 31 is abutted by screwing with the handle shaft 31.SELECTED DRAWING: Figure 3
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Description

Technical Field

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

Background Art

[0002] Conventionally, a fishing spinning reel having a handle detachably attached to a reel body is known (see, for example, Patent Document 1). In the fishing spinning reel of Patent Document 1, the handle is attached by screwing a handle shaft onto a drive gear shaft of the reel body, and includes a ball bearing that rotatably supports the drive gear shaft and an annular member attached to an end portion of the drive gear shaft. The drive gear shaft includes a drive gear and is rotatably supported via a ball bearing.

[0003] The annular member of Patent Document 1 is attached to the outer periphery of an end portion outside the ball bearing of the drive gear shaft and is formed of a stainless steel alloy material having higher strength than the drive gear shaft. Thereby, Patent Document 1 suppresses the end portion of the handle shaft from buckling and swelling due to high-load handle winding-up or the like.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] However, since the spinning reel for fishing of Patent Document 1 has a structure for suppressing the load acting on the drive gear shaft by an annular member attached to the end of the drive gear shaft, the number of parts increases, and it is necessary to manufacture the drive gear shaft and the annular member with high dimensional accuracy, leading to an increase in cost. In addition, since it is necessary to fix the annular member to the end of the drive gear shaft by press-fitting or an adhesive, etc., there are problems that the manufacturing process increases and it is difficult to manage the manufacturing by high-precision press-fitting or adhesion, resulting in inferior productivity.

[0006] The present invention was created to solve such problems, and provides a spinning reel for fishing that can simplify the connection structure between the drive gear shaft and the handle shaft while suitably suppressing the progress of buckling and can reduce costs.

Means for Solving the Problems

[0007] To solve the above problems, the present invention is a spinning reel for fishing in which a handle is configured to be detachable from a reel body. The reel body is provided with a drive gear shaft, and the handle is provided with a handle shaft that is screwed onto the drive gear shaft. The handle shaft is integrally provided with a contact portion that contacts the end of the drive gear shaft by screwing onto the drive gear shaft. And the drive gear shaft is provided with a wall portion that contacts the tip of the handle shaft by screwing of the handle shaft.

[0008] In this fishing spinning reel, when the handle shaft is screwed onto the drive gear shaft, the contact portion of the handle shaft approaches and contacts the end portion of the drive gear shaft, and the tip end portion of the handle shaft approaches and contacts the wall portion of the drive gear shaft, and the handle shaft is fixed to the drive gear shaft. That is, the pressing force generated by screwing the handle shaft is suppressed by two points of contact, namely, the contact of the contact portion of the handle shaft with respect to the end portion of the drive gear shaft and the contact of the tip end portion of the handle shaft with respect to the wall portion of the drive gear shaft, and the handle shaft can be fixed to the drive gear shaft. Thereby, the progress of buckling that may occur by screwing the handle shaft onto the drive gear shaft can be preferably suppressed. Therefore, compared with the conventional method of separately mounting an annular member to suppress the load acting on the drive gear shaft, the connection structure between the drive gear shaft and the handle shaft can be simplified while preferably suppressing the progress of buckling. In addition, it is not necessary to manufacture the drive gear shaft and the annular member with high dimensional accuracy, and cost reduction can be achieved. Furthermore, compared with the conventional method of separately mounting an annular member, when fixing the handle shaft to the drive gear shaft, fixing by press-fitting or an adhesive is not required, so productivity is improved. In addition, since the conventional annular member can be eliminated, weight reduction can also be achieved.

[0009] Also, it is preferable that the handle shaft is formed in a tapered shape toward the tip end portion. In this configuration, when the tip end portion of the handle shaft contacts the wall portion, if the tip end portion is buckled and deformed, the buckled and deformed portion can be released into the gap formed between the drive gear shaft.

[0010] Also, when screwing the handle shaft onto the drive gear shaft, it is preferable that the contact portion and the tip end portion of the handle shaft simultaneously contact the end portion and the wall portion of the drive gear shaft, respectively.

[0011] In this configuration, when the handle shaft is screwed onto the drive gear shaft, the pressing force generated by the screwing of the handle shaft can be dispersed to the end portion and the wall portion of the drive gear shaft. Thereby, the progression of buckling that may occur when the handle shaft is screwed onto the drive gear shaft can be suitably suppressed.

[0012] Also, when the handle shaft is screwed onto the drive gear shaft, after the contact portion of the handle shaft contacts the end portion of the drive gear shaft, it is preferable that the tip portion of the handle shaft contacts the wall portion of the drive gear shaft. Alternatively, conversely, after the tip portion of the handle shaft contacts the wall portion of the drive gear shaft, it is preferable that the contact portion of the handle shaft contacts the end portion of the drive gear shaft.

[0013] In this configuration, when the handle shaft is screwed onto the drive gear shaft, the contact portion and the tip portion of the handle shaft contact the end portion and the wall portion of the drive gear shaft step by step, so that the progression of buckling can be effectively suppressed.

[0014] Also, the wall portion of the drive gear shaft is preferably integrally formed with the drive gear shaft.

[0015] In this configuration, the wall portion can be formed simultaneously during the machining and forming of the drive gear shaft, so that the dimensional accuracy and production efficiency are high.

Advantages of the Invention

[0016] According to the present invention, a fishing spinning reel can be obtained that can simplify the connection structure between the drive gear shaft and the handle shaft while suitably suppressing the progression of buckling and reducing costs.

Brief Description of the Drawings

[0017]

Figure 1

Figure 2

Figure 3

Figure 4

Mode for Carrying Out the Invention

[0018] The spinning reel 100 for fishing according to the embodiment will be described with reference to the drawings. In the following description, when referring to "front and rear" and "up and down", the directions shown in FIG. 1 are used as a reference, and when referring to "left and right", the directions shown in FIG. 2 are used as a reference.

[0019] First, the basic structure of the fishing spinning reel 100 will be described. As shown in FIG. 1, the fishing spinning reel 100 includes a reel body 1 to which a handle 3 is attached, a rotor 4 provided on the front side of the reel body 1 and rotated by the winding operation of the handle 3, and a spool 5 provided on the front side of the rotor 4 and reciprocating in the front-rear direction by the winding operation of the handle 3.

[0020] The reel body 1 includes a body 10 formed with a side opening 11 that opens toward the left side, a leg 12 having a rod attachment portion 12a at its tip that extends upward from the upper part of the body 10 and is attached to a fishing rod, a lid member 13 that closes the side opening 11, and a protective cover 14 attached to the rear part of the body 10.

[0021] A drive shaft cylinder (not shown) and a spool shaft 8 (partially shown in FIG. 2) are assembled to the reel body 1 so as to protrude forward from the front part of the body 10. A rotor 4 is attached to the front end of the drive shaft cylinder. A spool 5 is attached to the front end of the spool shaft 8.

[0022] As shown in Fig. 2, the lid member 13 includes a cylindrical insertion portion 13a that is inserted inside the side opening 11. A male screw portion is formed on the outer peripheral surface of the insertion portion 13a. The male screw portion is screwed into a female screw portion formed on the inner peripheral surface of the side opening 11. By this screwing, the body 10 and the lid member 13 are integrated.

[0023] Inside the body 10, as a configuration for driving the drive shaft cylinder and the spool shaft 8 in conjunction with the operation of the handle 3, a drive gear shaft 2 extending in the left - right direction and a spool reciprocating device 60 are provided. As shown in Fig. 2, the drive gear shaft 2 includes a drive gear 21 and a gear 22. The drive gear shaft 2 is rotatably supported by the lid member 13 and the body 10 via left - right ball bearings 15, 16. A handle shaft 31 provided on the handle 3 is screwed and attached to the drive gear shaft 2. Thus, the handle 3 and the drive gear shaft 2 rotate integrally. Details of the drive gear shaft 2 and the handle 3 will be described later.

[0024] The spool reciprocating device 60 includes a slider 61 and an interlocking gear 62, and is configured such that the slider 61 moves in the front - rear direction along a guide shaft (not shown) extending in the front - rear direction of the body 10. The slider 61 is fixed to the rear end of the spool shaft 8 and has a guide groove 61a that opens to the right side. The interlocking gear 62 is supported by a support member 63 provided on the right side wall 10a of the body 10 and meshes with the gear 22 of the drive gear shaft 2 to rotate. The interlocking gear 62 has an eccentric protrusion 62a that engages with the guide groove 61a of the slider 61.

[0025] From the above, when the drive gear shaft 2 and the gear 22 rotate by the winding operation of the handle 3, the interlocking gear 62 rotates, and its rotational motion is converted into the front - rear motion of the slider 61 via the eccentric protrusion 62a and the guide groove 61a. Thereby, the spool shaft 8 (spool 5) reciprocates in the front - rear direction.

[0026] Next, the drive gear shaft 2, the handle 3, and their connection structure will be described in detail. As shown in Fig. 2, the drive gear shaft 2 has a substantially cylindrical shape, and has a stepped circular outer peripheral surface along the central axis O1 and threaded holes 23, 23 that open to the left and right. The handle 3 can be attached to the left side by the left threaded hole 23, and the handle 3 can be attached to the right side by the right threaded hole 23 (see Fig. 4). The left and right threaded holes 23, 23 communicate with each other at the central portion in the axial direction of the drive gear shaft 2.

[0027] The left and right threaded holes 23 each have a large-diameter inner peripheral surface 23a formed on the opening side and a small-diameter inner peripheral surface 23b formed on the back side of the large-diameter inner peripheral surface 23a and having a smaller diameter than the large-diameter inner peripheral surface 23a. Among these, female threads for screwing the handle shaft 31 are formed on the left large-diameter inner peripheral surface 23a and the right small-diameter inner peripheral surface 23b, respectively. The female thread on the left large-diameter inner peripheral surface 23a is a reverse thread opposite to the right-hand thread. On the other hand, the female thread on the right small-diameter inner peripheral surface 23b is a right-hand thread.

[0028] As also shown in Fig. 3, a wall portion 28 that protrudes radially inward is formed at the central portion in the axial direction of the drive gear shaft 2. The wall portion 28 has an annular shape centered on the central axis O1. A circular communication hole 28a is formed at the central portion in the radial direction of the wall portion 28. The left and right side surfaces 28c, 28c of the wall portion 28 are flat surfaces perpendicular to the central axis O1.

[0029] As shown in Figs. 3 and 4, tip portion accommodating inner peripheral surfaces 23c, 23c that are continuous with the small-diameter inner peripheral surfaces 23b, 23b are formed on both the left and right sides of the wall portion 28. Each tip portion accommodating inner peripheral surface 23c has a smaller diameter than the small-diameter inner peripheral surfaces 23b, 23b. In the process of screwing the handle shaft 31 onto the drive gear shaft 2, a tip portion 34c of the handle shaft 31 described later is inserted into each tip portion accommodating inner peripheral surface 23c. Then, the left and right side surfaces 28c, 28c of the wall portion 28 function as contact surfaces against which the tip surface 34d of the tip portion 34c of the handle shaft 31 abuts.

[0030] Note that the tip portion accommodating inner peripheral surfaces 23c, 23c may be formed to have an even smaller diameter so that a gap is formed between them and the outer peripheral surface of the tip portion 34c of the handle shaft 31 described later.

[0031] On the outer peripheral surface of the drive gear shaft 2, a drive gear 21 is integrally formed at a position offset to the left from the central portion in the left-right direction. Also, a gear 22 is integrally formed at a position offset to the right from the central portion in the left-right direction of the drive gear shaft 2. The drive gear shaft 2 is formed of an aluminum alloy. In a fishing spinning reel (hereinafter referred to as "high-load fishing spinning reel") 100 corresponding to a high-load winding operation for winding a fishing line under a situation where a high load acts, the drive gear shaft 2 may be formed of, for example, stainless steel or steel instead of the aluminum alloy.

[0032] Next, with reference to FIG. 3, the connection structure on the left side of the drive gear shaft 2 will be described in detail. On the left outer peripheral surface of the drive gear shaft 2, a first outer peripheral portion 24 continuous with the left side of the drive gear 21 and a second outer peripheral portion 25 continuous with the left side of the first outer peripheral portion 24 and having a smaller diameter than the first outer peripheral portion 24 are formed. A ring-shaped step surface 25a orthogonal to the central axis O1 is formed between the first outer peripheral portion 24 and the second outer peripheral portion 25. The outer peripheral surface of the second outer peripheral portion 25 functions as a seating surface on which the left ball bearing 15 is externally fitted. Also, the step surface 25a functions as a positioning surface on which the right side surface of the inner ring 15a of the left ball bearing 15 is positioned via an annular washer 21a. Note that the outer ring 15b of the left ball bearing 15 is fitted into the circular inner peripheral surface of the lid member 13 centered on the central axis O1.

[0033] The left end portion 25e of the second outer peripheral portion 25 is formed to protrude leftward beyond the left side surface of the inner ring 15a of the left ball bearing 15, or is formed to be flush with the left side surface of the inner ring 15a. A small-diameter surface 25b having a smaller diameter than the second outer peripheral portion 25 is formed on the left end outer peripheral surface of the second outer peripheral portion 25. Thereby, the outer diameter of the left end portion 25e of the drive gear shaft 2 is smaller than the inner diameter of the left ball bearing 15, and a gap is formed. Note that the left and right ball bearings 15, 16 are formed of stainless steel.

[0034] Next, referring to FIG. 4, the connection structure on the right side of the drive gear shaft 2 will be described in detail. On the outer peripheral surface on the right side of the drive gear shaft 2, a third outer peripheral portion 26 continuous with the right side of the gear 22 is formed. On the outer peripheral surface of the third outer peripheral portion 26, positioning protrusions 27 protruding radially outward are formed. On the right side of the positioning protrusion 27, the outer peripheral surface of the third outer peripheral portion 26 functions as a seating surface on which the right ball bearing 16 is externally fitted. Also, the right side surface 27a of the positioning protrusion 27 functions as a positioning surface on which the left side surface of the inner ring 16a of the right ball bearing 16 is positioned. Note that the outer ring 16b of the right ball bearing 16 is retained against removal by a retaining ring 10c on the inner surface of the right side wall 10a of the reel body 1. Also, a cover member 17 is attached to the right side wall 10a (see FIG. 2).

[0035] The right end portion 26e of the third outer peripheral portion 26 is formed to protrude further to the right than the right side surface of the inner ring 16a of the right ball bearing 16, or is formed to be flush with the right side surface of the inner ring 16a. A stepped surface 26b is formed on the outer peripheral surface at the right end of the third outer peripheral portion 26. Thereby, the outer diameter of the right end portion 26e is smaller than the inner diameter of the right ball bearing 16.

[0036] Next, the handle 3 will be described. As shown in FIG. 2, the handle 3 includes an arm portion 32 and a handle shaft 31 connected to the arm portion 32 and having a stepped circular outer peripheral surface along the central axis O1. A cover member 3a is attached to the connecting portion between the arm portion 32 and the handle shaft 31.

[0037] The handle shaft 31 includes a large-diameter base portion 33 connected to the arm portion 32 and a small-diameter insertion portion 34 that is continuous with the base portion 33, is formed to have a smaller diameter than the base portion 33, and is inserted into the threaded hole 23 of the drive gear shaft 2.

[0038] The base 33 has a substantially bottomed cylindrical shape with an opening on the side of the arm portion 32, and the inside thereof is hollow. The insertion portion 34 has a substantially columnar shape, and includes a first insertion portion 34a continuous with the bottom of the base 33, a second insertion portion 34b continuous with the first insertion portion 34a, and a tip portion 34c continuous with the second insertion portion 34b. That is, the insertion portion 34 has a tapered shape in which the outer peripheral surface gradually narrows (has a smaller diameter) toward the tip.

[0039] The first insertion portion 34a has an outer peripheral surface with a smaller diameter than that of the base 33. The second insertion portion 34b has an outer peripheral surface with a smaller diameter than that of the first insertion portion 34a. On the outer peripheral surface of the first insertion portion 34a, a male thread that is screwed into the female thread of the large-diameter inner peripheral surface 23a on the left side of the drive gear shaft 2 is formed. On the other hand, on the outer peripheral surface of the second insertion portion 34b, a male thread that is screwed into the female thread of the small-diameter inner peripheral surface 23b on the right side of the drive gear shaft 2 is formed. The male thread of the first insertion portion 34a is a reverse thread opposite to the right-hand thread. The male thread of the second insertion portion 34b is a right-hand thread.

[0040] At the boundary between the base 33 of the handle shaft 31 and the first insertion portion 34a, a stepped surface 36 that functions as a contact portion is integrally provided. As shown in FIG. 3, the stepped surface 36 is formed by utilizing the difference in outer diameter between the base 33 and the first insertion portion 34a, and is a ring-shaped flat surface orthogonal to the central axis O1. The stepped surface 36 faces the left end portion 25e (left end surface) of the second outer peripheral portion 25 and the left side surface of the inner ring 15a of the left ball bearing 15, and is configured to contact the left end portion 25e of the second outer peripheral portion 25 and the left side surface of the inner ring 15a during the process of tightening the handle shaft 31 to the drive gear shaft 2.

[0041] In the present embodiment, it is set such that when the stepped surface 36 contacts the left end portion 25e of the second outer peripheral portion 25, the stepped surface 36 simultaneously contacts the left side surface of the inner ring 15a. Note that the contact of the stepped surface 36 is not limited to this, and the stepped surface 36 may be configured to contact one of the left end portion 25e of the second outer peripheral portion 25 and the left side surface of the inner ring 15a, and then contact the other.

[0042] The tip portion 34c has an outer peripheral surface with a smaller diameter than that of the second insertion portion 34b. The tip surface 34d of the tip portion 34c is formed as a flat surface orthogonal to the central axis O1. The tip portion 34c has an outer diameter that is inserted inside the inner peripheral surface 23c for accommodating the tip of the drive gear shaft 2. The tip portion 34c is inserted inside the inner peripheral surface 23c for accommodating the tip during the process of screwing the handle shaft 31 onto the drive gear shaft 2. Then, the tip surface 34d of the tip portion 34c comes into contact (is applied) with the side surface 28c of the wall portion 28 by tightening the handle shaft 31.

[0043] In the present embodiment, as shown in FIG. 3, when connecting the handle shaft 31 on the left side of the drive gear shaft 2, at the timing when the stepped surface 36 comes into contact with the left end portion 25e of the second outer peripheral portion 25 and the left side surface of the inner ring 15a, the tip portion 34c of the handle shaft 31 is set to come into contact with the left side surface 28c of the wall portion 28 simultaneously. Also, in the connection of the handle shaft 31 on the right side of the drive gear shaft 2, at the timing when the stepped surface 36 comes into contact with the right end portion 26e of the third outer peripheral portion 26 and the right side surface of the inner ring 16a, the tip portion 34c of the handle shaft 31 is set to come into contact with the right side surface 28c of the wall portion 28 simultaneously. Thereby, in either case of left and right connections, the pressing force due to the screwing of the handle shaft 31 can be dispersed with respect to the end portion of the drive gear shaft 2 and the wall portion 28 (central portion).

[0044] Note that the contact by the stepped surface 36 and the tip portion 34c is not limited to this, and after the stepped surface 36 comes into contact with the left end portion 25e of the second outer peripheral portion 25 (right end portion 26e of the third outer peripheral portion 26), the tip surface 34d of the tip portion 34c may be configured to come into contact with the left side surface 28c (right side surface 28c) of the wall portion 28. Conversely, after the tip surface 34d of the tip portion 34c comes into contact with the left side surface 28c (right side surface 28c) of the wall portion 28, the stepped surface 36 may be configured to come into contact with the left end portion 25e of the second outer peripheral portion 25 (right end portion 26e of the third outer peripheral portion 26).

[0045] Further, the tip portion 34c may be formed with an even smaller diameter so that a gap is formed between the tip portion 34c and the inner peripheral surfaces 23c, 23c of the tip portion housing. Further, the tip portion 34c may be formed in a tapered shape that tapers toward the tip surface 34d.

[0046] According to the fishing spinning reel 100 of the present embodiment described above, when the handle shaft 31 is screwed onto the left side of the drive gear shaft 2, the stepped surface (contact portion) 36 of the handle shaft 31 approaches and contacts the left end portion 25e of the drive gear shaft 2, and the tip portion 34c of the handle shaft 31 approaches and contacts the wall portion 28 of the drive gear shaft 2, and the handle shaft 31 is fixed to the drive gear shaft 2. That is, the handle shaft 31 can be fixed to the drive gear shaft 2 in a state where the pressing force generated by screwing the handle shaft 31 is suppressed by two point contactings, namely, the contact of the stepped surface (contact portion) 36 against the left end portion 25e of the drive gear shaft 2 and the contact of the tip portion 34c of the handle shaft 31 against the wall portion 28 of the drive gear shaft 2. Thereby, the progression of buckling that may occur by screwing the handle shaft 31 onto the drive gear shaft 2 can be preferably suppressed. Therefore, compared with the conventional method of separately mounting an annular member to suppress the load acting on the drive gear shaft, the connection structure between the drive gear shaft 2 and the handle shaft 31 can be simplified while preferably suppressing the progression of buckling. Further, it is not necessary to manufacture the drive gear shaft 2 and the annular member with high dimensional accuracy, and cost reduction can be achieved. Further, compared with the conventional method of separately mounting an annular member, when the handle shaft 31 is fixed to the drive gear shaft 2, fixing by press fitting, adhesive, etc. is not required, so productivity is improved. Further, since the conventional annular member can be eliminated, weight reduction can also be achieved. These operational effects can be obtained similarly when the handle shaft 31 is screwed onto the right side of the drive gear shaft 2.

[0047] In addition, when a gap is formed between the tip portion 34c of the handle shaft 31 and the tip portion receiving inner peripheral surfaces 23c, 23c, the portion where buckling deformation has occurred can be released using the gap. Further, even when the tip portion 34c is formed in a tapered shape that tapers toward the tip surface 34d, a gap is formed between the tip portion receiving inner peripheral surfaces 23c, 23c, so similarly, the portion where buckling deformation has occurred can be released using the gap.

[0048] In addition, when the handle shaft 31 is screwed onto the left side of the drive gear shaft 2, the stepped surface (contact portion) 36 and the tip portion 34c of the handle shaft 31 simultaneously come into contact with the left end portion 25e and the wall portion 28 of the drive gear shaft 2, respectively. Therefore, the pressing force generated by screwing the handle shaft 31 can be dispersed to the left end portion 25e and the wall portion 28 of the drive gear shaft 2. Thereby, the progression of buckling that may occur when the handle shaft 31 is screwed onto the drive gear shaft 2 can be suitably suppressed. This operational effect can also be obtained similarly when the handle shaft 31 is screwed onto the right side of the drive gear shaft 2.

[0049] In addition, when the handle shaft 31 is screwed onto the left side of the drive gear shaft 2 and is configured such that the stepped surface (contact portion) 36 and the tip portion 34c of the handle shaft 31 come into contact with the left end portion 25e and the wall portion 28 of the drive gear shaft 2 step by step, the progression of buckling can be effectively suppressed. This operational effect can also be obtained similarly when the handle shaft 31 is screwed onto the right side of the drive gear shaft 2.

[0050] For example, when the contact portion 36 of the handle shaft 31 comes into contact with the left end portion 25e of the drive gear shaft 2 and then the tip portion 34c of the handle shaft 31 comes into contact with the wall portion 28 of the drive gear shaft 2, by first bringing it into contact with the left end portion 25e having a larger contact area to reduce the pressing force generated by screwing the handle shaft 31, the pressing force can be complementarily reduced by the contact of the tip portion 34c with the wall portion 28. Conversely, when the tip 34c of the handle shaft 31 abuts against the wall portion 28 of the drive gear shaft 2 and then the abutting portion 36 of the handle shaft 31 abuts against the left end portion 25e of the drive gear shaft 2, it is possible to abut against the wall portion 28 where there are no components around it, and effectively reduce the pressing force due to the screwing of the handle shaft 31. Therefore, while promoting the buckling deformation of the tip 34c of the handle shaft 31, it is possible to suitably suppress the pressing force on the left end portion 25e of the drive gear shaft 2. Note that it is not always necessary to abut against both the left end portion 25e (right end portion 26e) and the wall portion 28, and it may abut against either one. In this case, when a strong load acts during winding up, it is also possible to configure it to abut complementarily against the non-abutting side.

[0051] Further, since the wall portion 28 is integrally formed with the drive gear shaft 2, the wall portion 28 can be formed simultaneously during the machining and forming of the drive gear shaft 2, so the dimensional accuracy and production efficiency are high.

[0052] As described above, the embodiments of the present invention have been described, but the present invention is not limited to the examples shown in the embodiments. For example, in the above embodiment, the stepped surface (abutting portion) 36 of the handle shaft 31 is shown as having a flat surface shape perpendicular to the central axis O1, but it is not limited to this, and various shapes can be adopted as long as they are shapes that abut against the left end portion 25e and the right end portion 26e of the drive gear shaft 2.

[0053] Also, the wall portion 28 only needs to have a side surface 28c against which the tip surface 34d of the tip 34c of the handle shaft 31 abuts, and the circular communication hole 28a does not necessarily have to be provided. When the communication hole 28a is not formed, the contact area with the tip surface 34d of the tip 34c of the handle shaft 31 can be increased, and the pressing force can be effectively reduced. Further, the side surface 28c is not limited to a flat surface shape as long as it can suppress the progress of buckling by the contact of the tip 34c of the handle shaft 31, and various shapes can be adopted. In this case, the shape of the tip surface 34d of the tip 34c of the handle shaft 31 may be changed so as to correspond to the shape of the side surface 28c.

[0054] Also, in the above embodiment, the handle shaft 31 is shown as being connected to the arm portion 32, but it is not limited thereto, and the handle shaft 31 may be integrally provided on the arm portion 32.

[0055] Also, in each of the above embodiments, the fishing spinning reel 100 in which the lid member 13 is screwed to the side opening 11 has been described, but it is not limited thereto, and the present invention can also be suitably applied to a fishing spinning reel in which the lid member is fixed to the reel body using screws or other fixing means.

Explanation of reference numerals

[0056] 1 Reel body 2 Drive gear shaft 3 Handle 25e Left end (end) 26e Right end (end) 28 Wall portion 31 Handle shaft 34c Tip 36 Contact portion 100 Fishing spinning reel

Claims

1. A spinning reel for fishing, in which a handle is detachably attached to a reel body, comprising a drive gear shaft provided on the reel body, and a handle shaft provided on the handle and screwed onto the drive gear shaft, wherein an abutting portion that abuts against an end portion of the drive gear shaft by screwing onto the drive gear shaft is integrally provided on the handle shaft, and a wall portion against which a tip end portion of the handle shaft abuts by screwing of the handle shaft is provided on the drive gear shaft. A spinning reel for fishing is characterized by this.

2. The spinning reel for fishing according to claim 1, wherein the handle shaft is formed in a tapered shape toward the tip end portion.

3. When screwing the handle shaft onto the drive gear shaft, the spinning reel for fishing according to claim 1 or claim 2, characterized in that the abutting portion and the tip end portion of the handle shaft simultaneously abut against the end portion and the wall portion of the drive gear shaft, respectively.

4. When screwing the handle shaft onto the drive gear shaft, after the abutting portion of the handle shaft abuts against the end portion of the drive gear shaft, the tip end portion of the handle shaft abuts against the wall portion of the drive gear shaft, or, after the tip end portion of the handle shaft abuts against the wall portion of the drive gear shaft, the abutting portion of the handle shaft abuts against the end portion of the drive gear shaft. The spinning reel for fishing according to claim 1 or claim 2 is characterized by this.

5. The spinning reel for fishing according to claim 1, wherein the wall portion of the drive gear shaft is integrally formed with the drive gear shaft.

Citation Information

Patent Citations

  • Wrist device for robot

    JP1986044590A

  • Handle assembly for spinning reel and spinning reel

    JP2019076037A

  • Spinning reel

    JP2020099358A

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