JP2019047742A - Spool of double bearing reel - Google Patents

Abstract

To provide a spool of a double bearing reel that can reduce inertia of the spool and secure a braking force at the same time.SOLUTION: Rotation of a spool 5 of a double bearing reel is braked by exerting a magnetic force. The spool 5 comprises a cylindrical bobbin drum part 51 and a pair of flange parts 59. A fishing line is wound around an outer periphery of the bobbin drum part 51. The bobbin drum part 51 comprises a first perforated cylindrical part 52 and a second perforated cylindrical part 53. The first perforated cylindrical part 52 is provided on one side of the pair of flange parts 59. The first perforated cylindrical part 52 comprises a first through hole 54a. The second perforated cylindrical part 53 is provided on another side of the pair of flange parts 59. The magnetic force for braking the rotation is exerted on the second perforated cylindrical part 53. The second perforated cylindrical part 53 comprises a second through hole 55a having a smaller diameter than that of the first through hole 54a.SELECTED DRAWING: Figure 3A

Description

  The present invention relates to a spool of a dual bearing reel.

  As one of fishing performed using a conventional dual bearing reel, in particular, a reel called a bait casting reel, there is fishing which throws a lightweight lure called bait finess. The bait finesse is required to reduce the inertia of the spool as much as possible because it uses a very lightweight lure as compared to the conventional lure. For this reason, weight reduction is performed by providing a through hole in the flange portion and the bobbin trunk.

  On the other hand, in the conventional dual bearing reel, backlash occurs if there is no braking mechanism for applying a braking force to the spool. If a conductor for generating a braking force and a shoe of a centrifugal brake are added to the spool in order to prevent this backlash, the inertia of the entire spool will increase. In order to solve this, according to Patent Document 1, a perforated cylindrical portion and a non-perforated cylindrical portion are provided in the bobbin trunk and a magnetic force is applied to the non-perforated cylindrical portion.

Patent No. 598 5779

  In the double-bearing reel spool of Patent Document 1, the braking force is secured by providing the non-perforated cylindrical portion, but in order to generate an eddy current for obtaining a sufficient braking force, the non-perforated cylinder is used. The part needs some thickness. However, if the inertia of the spool increases due to the thickness of the non-perforated tube portion, it is necessary to further increase the braking force on the spool.

  The present invention has been made in view of the above problems, and an object of the present invention is to provide a dual-bearing reel spool that can achieve both reduction in inertia of the spool and securing of a braking force.

  (1) The dual-bearing reel spool according to one aspect of the present invention is a dual-bearing reel spool whose rotation is braked by applying a magnetic force. The spool of this dual-bearing reel comprises a cylindrical bobbin trunk and a pair of flanges. A fishing line is wound around the outer periphery of the bobbin trunk. A pair of flanges are provided separately at each end of the bobbin trunk.

  Here, the bobbin trunk has a first perforated cylinder and a second perforated cylinder. The first perforated cylinder is provided on one side of the pair of flanges. The first perforated cylinder has a first through hole. The second perforated cylinder is provided on the other side of the pair of flanges. A magnetic force for rotational braking acts on the second perforated cylinder. The second perforated cylinder has a second through hole smaller in diameter than the first through hole.

  In this configuration, the inertia of the spool can be reduced by providing the second through hole in the second perforated cylinder. Also, the second through hole is formed so that the area through which the magnetic flux passes is not greatly reduced when the magnetic type spool braking portion is opposed to the inner peripheral surface of the second perforated cylindrical portion of the bobbin trunk. The diameter is smaller than that of the first through hole. Thereby, an appropriate braking force can be applied to the spool.

  (2) In the spool of the dual bearing reel according to another aspect of the present invention, the diameter of the second through hole is preferably equal to or less than the thickness of the second perforated cylindrical portion. As a result, the inertia of the spool can be reduced without causing a reduction in the braking force (magnetic flux passing area) on the spool and the strength thereof.

  (3) In the spool of the dual bearing reel according to another aspect of the present invention, it is preferable that at least one of the first through hole and the second through hole be provided with a chamfered portion. This can further reduce the inertia of the spool.

  (4) The spool of the dual bearing reel according to one aspect of the present invention is a spool of the dual bearing reel whose rotation is braked by applying a magnetic force. The spool of this dual-bearing reel comprises a cylindrical bobbin trunk and a pair of flanges. A fishing line is wound around the outer periphery of the bobbin trunk. A pair of flanges are provided separately at each end of the bobbin trunk.

  Here, the bobbin trunk has a first perforated cylinder, a non-perforated cylinder, and a second perforated cylinder. The first perforated cylinder is provided on one side of the pair of flanges. The first perforated cylinder has a first through hole. The non-perforated cylindrical portion is provided on the other side of the pair of flange portions. A magnetic force for rotational braking acts on the non-perforated cylindrical portion. The second perforated cylinder is provided between the non-perforated cylinder and the other flange. The second perforated cylinder portion is provided with a second through hole whose diameter is smaller than that of the first through hole.

  In this configuration, if the magnetic spool braking portion is opposed to the inner circumferential surface of the non-perforated cylindrical portion of the bobbin trunk, an appropriate braking force can be applied to the spool without inhibiting the generation of the eddy current. Can act.

  (5) It is preferable that the spool of the reel for dual bearings which concerns on another side surface of this invention further has a 3rd perforated cylinder part. The third perforated cylinder is provided on the opposite side of the second perforated cylinder and the non-perforated cylinder. The third perforated cylinder portion is provided with a third through hole whose diameter is smaller than that of the first through hole. This can further reduce the inertia of the spool.

  (6) In the spool of the dual-bearing reel according to another aspect of the present invention, the diameter of the second through hole is preferably equal to or less than the thickness of the second perforated cylindrical portion. As a result, the inertia of the spool can be reduced without causing a reduction in the braking force (magnetic flux passing area) on the spool and the strength thereof.

  (7) In the spool for a dual bearing reel according to another aspect of the present invention, it is preferable that at least one of the first through hole and the second through hole be provided with a first chamfered portion. This can further reduce the inertia of the spool.

  (8) In the spool for a dual-bearing reel according to another aspect of the present invention, it is preferable that a second chamfered portion be provided in the third through hole. This can further reduce the inertia of the spool.

  According to the present invention, the weight reduction and inertia reduction of the spool can be achieved, and the braking force can be appropriately applied to the spool.

BRIEF DESCRIPTION OF THE DRAWINGS The perspective view of the dual bearing reel which employ | adopted one Embodiment of this invention. Sectional drawing which shows the structure inside reel main body. Sectional drawing and side view of a spool. The partial expanded sectional view of a spool. FIG. 8 is an enlarged cross-sectional view of a spool and a spool braking mechanism. Sectional drawing and side view of the spool in a modification. The partial expanded sectional view of the spool in a modification.

-1st Embodiment-
<Configuration of Double-Bearing Reel>
FIG. 1 shows a dual bearing reel in which the first embodiment of the present invention is adopted. As shown in FIGS. 1 and 2, the dual-bearing reel includes a reel body 1, a handle 3, a spool 5, and a spool braking mechanism 7.

  In the following, the direction in which the fishing line is fed forward may be expressed as "forward", and the direction opposite to the direction in which the fishing line is fed forward may be expressed as "backward". Also, the side on which the reel body 1 is mounted to the fishing rod may be expressed as "downward" and the direction opposite to the side on which the reel body 1 is mounted to the fishing rod may be expressed as "upper". Also, the direction in which the spool shaft 16 extends and the direction in which the pinion gear 36 extends are substantially the same. Therefore, these directions may be expressed as "axial directions" below.

(Reel body)
As shown in FIG. 2, the reel body 1 has a frame 4, a first side cover 9 and a second side cover 11, and a thumb rest 13 (see FIG. 1) mounted on the top of the frame 4. ing.

  The frame 4 has a first side plate 15, a second side plate 17, and a plurality of connecting portions (not shown). The first side plate 15 and the second side plate 17 are disposed to face each other at a predetermined interval. The brake case 19 is fixed to the second side plate 17. The plurality of connecting portions connect the first side plate 15 and the second side plate 17.

  The first side cover 9 is attached to the frame 4, for example, the first side plate 15 on the side opposite to the handle 3. The second side cover 11 is detachably mounted to the frame 4, for example, the second side plate 17 on the handle 3 side. An operation knob 63 for operating the spool braking mechanism 7 is disposed between the first side cover 9 and the brake case 19.

  A spool 5 and a clutch operating lever 26 are disposed on the frame 4. The clutch control lever 26 is used to turn on and off the clutch mechanism 29.

  A gear mechanism 25, a clutch engagement / disengagement mechanism 27, a clutch mechanism 29, a drag mechanism 31 and a casting control mechanism 33 are disposed between the frame 4 and the second side cover 11.

  The gear mechanism 25 transmits the rotational force from the handle 3 to the spool 5. The gear mechanism 25 has a drive gear 35 and a pinion gear 36.

  The drive gear 35 is mounted by the drag mechanism 31 so as to be integrally rotatable and relatively rotatable with respect to the drive shaft 30. The drive gear 35 meshes with the pinion gear 36.

  The pinion gear 36 is rotatably supported by the second side plate 17. The pinion gear 36 meshes with the drive gear 35. Thus, when the drive shaft 30 rotates, the pinion gear 36 rotates via the drive gear 35.

  The pinion gear 36 is axially movably mounted on the spool shaft 16. The pinion gear 36 is substantially cylindrically formed. The spool shaft 16 is inserted through the inner peripheral portion of the pinion gear 36.

  The clutch engagement and disengagement mechanism 27 engages and disengages the clutch mechanism 29. The clutch engagement / disengagement mechanism 27 releases the connection between the pinion gear 36 and the spool shaft 16 by the operation of the clutch operation lever 26. The clutch engagement / disengagement mechanism 27 connects the pinion gear 36 and the spool shaft 16 by the rotation operation of the handle 3.

  The drag mechanism 31 brakes the spool 5 at the time of yarn feeding. Specifically, when the fishing line is pulled by a force that exceeds the drag force, the drag mechanism 31 operates and the spool 5 rotates in the line unwinding direction. The casting control mechanism 33 brakes the spool 5 by holding the both ends of the spool shaft 16.

(handle)
The handle 3 is rotatably provided on the reel body 1. Specifically, as shown in FIGS. 1 and 2, the handle 3 is disposed on the side of the reel body 1 and rotatably mounted on the reel body 1. The drive shaft 30 is mounted on the handle 3 so as to be integrally rotatable.

  The drive shaft 30 is rotatably supported by the second side plate 17 and the second side cover. Here, the drive shaft 30 is rotatably supported by the second side plate 17 via a bearing, and is rotatably supported by the second side cover via the one-way clutch 43. The rotation of the handle 3, that is, the rotation of the drive shaft 30 is transmitted to the drive gear 35 via the one-way clutch 43 and the drag mechanism 31. Thereby, the spool 5 rotates.

(spool)
The rotation of the spool 5 is braked by applying a magnetic force. The spool 5 is a nonmagnetic conductor. As shown in FIGS. 1 and 2, the spool 5 is provided on the reel body 1 so as to be rotatable in conjunction with the rotation of the handle 3.

  As shown in FIG. 3A, the spool 5 has a cylindrical bobbin trunk 51, a pair of flanges 59, and a mounting portion 61.

  Hereinafter, one of the pair of flange portions 59, for example, the flange portion on the handle 3 side may be expressed as a first flange portion 59a. Also, the other of the pair of flanges 59, for example, the flange opposite to the handle 3 may be expressed as a second flange 59b.

  A fishing line is wound around the outer periphery of the bobbin trunk 51. The bobbin trunk 51 has a first perforated cylinder 52 and a second perforated cylinder 53.

  The first perforated cylinder portion 52 is a portion that contributes to the weight reduction (inertia reduction) of the spool 5. The first perforated cylinder 52 is provided on one side of the pair of flanges 59. For example, the first perforated cylinder 52 is provided on the side of the first flange 59a. Specifically, the first perforated cylinder 52 is provided axially between the axial center of the first flange 59a and the second flange 59b and the first flange 59a.

  The first perforated cylinder 52 has a first main body 54 and a plurality of first through holes 54 a. A fishing line is wound around the outer peripheral surface of the first main portion 54. The first main body portion 54 is substantially formed in a tubular shape. The first main body 54 forms a bobbin trunk 51 on the handle 3 side. The first main body portion 54 is integrally formed with the first flange portion 59a, and is integrally formed with a second main body portion 55 (described later) of the second perforated cylindrical portion 53.

  The plurality of first through holes 54 a are provided in the first main body portion 54. Each of the plurality of first through holes 54 a penetrates the first main body portion 54 from the outer peripheral surface toward the inner peripheral surface. That is, each of the plurality of first through holes 54 a penetrates the first main portion 54 in the radial direction.

  A chamfered portion 54b is provided in each of the plurality of first through holes 54a. In detail, chamfers 54 b are provided on the radial outside of each first through hole 54 a.

  Each of the plurality of first through holes 54a extends in the circumferential direction of the first main body 54 in the range from the central portion between the first flange 59a and the second flange 59b in the axial direction to the first flange 59a. Are spaced apart.

  The plurality of first through holes 54 a are formed on both sides of the web portion 61 b (described later) of the mounting portion 61, radially outside of the web portion 61 b of the mounting portion 61, and in the vicinity of the first flange portion 59 a. It is formed in the circumferential direction of.

  The second perforated cylinder 53 is a portion on which the magnetic force (magnetic force for rotation braking) of the spool braking mechanism 7 acts. The second perforated cylinder 53 is provided on the other side of the pair of flanges 59. For example, the second perforated cylinder 53 is provided on the second flange 59 b side. Specifically, the second perforated cylinder 53 is provided axially between the first perforated cylinder 52 and the second flange 59b.

  The second perforated cylinder 53 has a second main body 55 and a plurality of second through holes 55 a. A fishing line is wound around the outer peripheral surface of the second main body 55. The second main body 55 is substantially formed in a cylindrical shape. The second main body 55 forms a bobbin trunk 51 opposite to the handle 3. The second main body 55 is integrally formed with the first main body 54, and is integrally formed with the second flange 59b.

  As shown in FIG. 3B, the second main body 55 includes a small diameter portion 56, a large diameter portion 57, and a step portion 58. The small diameter portion 56 is connected to the large diameter portion 57 via the step portion 58. The inner circumferential surface of the small diameter portion 56 is connected to the inner circumferential surface of the first main portion 54. Here, the inner diameter of the small diameter portion 56 is the same as the inner diameter of the first main portion 54.

  The small diameter portion 56 can be opposed to the spool braking mechanism 7. Here, the corner portion P formed by the inner circumferential surface of the small diameter portion 56 and the step portion 58 is used as a reference for managing the magnetic force of the spool braking mechanism 7 acting on the small diameter portion 56.

  For example, the corner portion P extends in the circumferential direction on the inner peripheral surface of the bobbin trunk 51, that is, the small diameter portion 56. An area (a passing area of the magnetic flux) in which the magnetic flux passes through the small diameter portion 56 is managed with reference to the corner portion P.

  The inner circumferential surface of the large diameter portion 57 is connected to the inner circumferential surface of the small diameter portion 56 via the step portion 58. The inner circumferential surface of the large diameter portion 57 is continuously connected to the outer surface of the second flange portion 59b. The inner diameter of the large diameter portion 57 is larger than the inner diameter of the small diameter portion 56.

  The stepped portion 58 is a portion connecting the inner circumferential surface of the small diameter portion 56 and the inner circumferential surface of the large diameter portion 57. The step portion 58 extends in the circumferential direction. The inner peripheral surface of the step portion 58 is expanded in diameter from the small diameter portion 56 toward the large diameter portion 57.

  The plurality of second through holes 55 a are provided in the second main body 55. Each of the plurality of second through holes 55a penetrates the second main body 55 from the outer peripheral surface toward the inner peripheral surface. That is, each of the plurality of second through holes 55 a penetrates the second main body 55 in the radial direction.

  A chamfered portion 55b is provided in each of the plurality of second through holes 55a. In detail, chamfers 55 b are provided on the radially outer side of the second through holes 55 a.

  Each of the plurality of second through holes 55 a is disposed at an interval in the circumferential direction in the second main body 55. In detail, each of the plurality of second through holes 55a is arranged in the vicinity of the second flange portion 59b at an interval in the circumferential direction of the second main portion 55.

  Here, each of the plurality of second through holes 55a is smaller in diameter than each of the plurality of first through holes 54a. The diameter of each of the plurality of second through holes 55 a is equal to or less than the thickness of the second main body 55.

  As shown in FIG. 3A, the first and second flanges 59a and 59b are separately provided at both ends of the bobbin trunk 51. Specifically, each of the first and second flanges 59 a and 59 b is integrally formed at an end of the bobbin trunk 51 so as to extend radially outward from the end of the bobbin trunk 51. The broken line shown in FIG. 3B corresponds to the boundary between the first and second flanges 59 a and 59 b and the bobbin trunk 51.

  As shown in FIG. 3A, the mounting portion 61 has a boss portion 61a and a web portion 61b. The boss portion 61 a is substantially formed in a tubular shape. The boss portion 61 a is fixed so as to be integrally rotatable with the spool shaft 16. The web portion 61 b is formed in a substantially annular shape. The web portion 61 b connects the boss portion 61 a and the bobbin trunk 51.

  As shown in FIG. 2, the spool shaft 16 can rotate integrally with the spool 5. The spool shaft 16 extends through the second side plate 17 to the second side cover 11. One end of the spool shaft 16 is rotatably supported by the second side cover 11 via a bearing. The other end of the spool shaft 16 is rotatably supported by the first side plate 15, for example, the brake case 19 via a bearing.

(Spool brake mechanism)
The spool braking mechanism 7 can brake the spool 5 using a magnetic force. Specifically, the spool braking mechanism 7 causes the second perforated cylindrical portion 53 of the spool 5 to generate an eddy current to brake the spool 5.

  As shown in FIG. 4, the spool braking mechanism 7 is provided on the reel body 1. In detail, the spool braking mechanism 7 is provided on the reel body 1, for example, the brake case 19. An operation knob 63 for operating the spool braking mechanism 7 is engaged with the brake case 19.

  The spool braking mechanism 7 is mounted so as to be relatively rotatable and axially movable with respect to the magnetic body 71 having a plurality of magnets, the first cylindrical portion 73 mounted to the brake case 19, and the first cylindrical portion 73. And a second cylindrical portion 75. The spool braking mechanism 7 further includes a spring member 77 urging the second cylindrical portion 75 toward the brake case 19 and a retaining member 79 retaining the spring member 77.

  In the spool braking mechanism 7, the braking force of the spool 5 is adjusted according to the axial position of the magnetic body 71. More specifically, the braking force of the spool 5 is adjusted according to the number of magnetic fluxes passing from the magnetic body 71 through the bobbin trunk 51 of the spool 5 (the second main body 55 of the second perforated cylinder 53 such as the large diameter portion 55). Adjusted.

-Second embodiment-
In the first embodiment, an example in which the bobbin trunk 51 has the first perforated cylinder 52 and the second perforated cylinder 53 is shown (see FIG. 3A). Instead of this, in the second embodiment, as shown in FIGS. 5A and 5B, the thread winding body 151 includes the first perforated cylindrical portion 152, the cylindrical non-perforated cylindrical portion 153, and the second existence. The spool 105 is configured to have the hole cylinder portion 154 and the third perforated cylinder portion 155.

  The description of the configuration substantially the same as that of the first embodiment is omitted here. The configuration omitted here conforms to the description of the first embodiment.

  In the second embodiment, as shown in FIG. 5A, the first perforated cylinder 152 is provided on one side of the pair of flanges 59, for example, the first flange 59a. The first perforated cylinder portion 152 has a plurality of first through holes 152 a.

  A chamfered portion 152 b is provided in each of the plurality of first through holes 152 a. Specifically, chamfered portions 152 b are provided on the radially outer side of each first through hole 152 a.

  The configurations of the first perforated cylinder portion 152 and the first through hole 152a are substantially the same as the configurations of the above-described embodiment, and thus the description thereof is omitted here.

  As shown in FIG. 5B, a magnetic force for rotational braking acts on the non-perforated cylindrical portion 153. For example, the magnetic body 71 is disposed to face the non-perforated cylindrical portion 153. In this state, by configuring the spool braking mechanism 107 so that the magnetic body 71 moves in the radial direction, the spool 105 can be effectively braked.

  As shown in FIG. 5A, the non-perforated cylindrical portion 153 is provided on the other side of the pair of flange portions 59, for example, the second flange portion 59b. In detail, the non-perforated cylindrical portion 153 is provided between the first perforated cylindrical portion 152 and the second flange portion 59 b in the axial direction. More specifically, the non-perforated cylindrical portion 153 is provided axially between the first perforated cylindrical portion 152 and the second perforated cylindrical portion 154. The non-perforated cylindrical portion 153 is integrally formed with the first perforated cylindrical portion 152 and the second perforated cylindrical portion 154.

  The second perforated cylinder 154 is provided between the non-perforated cylinder 153 and the second flange 59 b in the axial direction. The second perforated cylinder 154 is integrally formed with the non-perforated cylinder 153 and the second flange 59 b.

  As shown in FIG. 5B, the second perforated cylinder portion 154 is provided with a plurality of second through holes 154a. In detail, the large diameter portion 57 described in the above embodiment is provided in the second perforated cylinder portion 154. The plurality of second through holes 154 a are provided in the large diameter portion 57.

  Each of the plurality of second through holes 154 a is disposed in the vicinity of the second flange portion 59 b at an interval in the circumferential direction of the large diameter portion 57. Each of the plurality of second through holes 154 a penetrates the large diameter portion 57 in the radial direction.

  A chamfered portion 154 b is provided in each of the plurality of second through holes 154 a. Specifically, chamfers 154 b are provided on the radially outer side of each second through hole 154 a.

  Here, the second through hole 154a is smaller in diameter than the first through hole 152a. The diameter of the second through hole 154 a is equal to or less than the thickness of the large diameter portion 57.

  As shown to FIG. 5A, the 3rd perforated cylinder part 155 is provided in the opposite side on both sides of the 2nd perforated cylinder part 154 and the non-perforated cylinder part 153. As shown in FIG. In addition, the third perforated cylinder portion 155 is provided on the second flange portion 59 b side of the first perforated cylinder portion 152.

  The third perforated cylinder portion 155 is provided with a plurality of third through holes 155 a. Each of the plurality of third through holes 155 a is arranged at intervals in the circumferential direction on the opposite side to the above and on the side of the second flange portion 59 b in the first perforated cylinder portion 152.

  Each of the plurality of third through holes 155 a penetrates the third perforated cylinder portion 155 in the radial direction. In detail, the plurality of third through holes 155a radially penetrate the first perforated cylindrical portion 152 on the side of the second flange 59b on the opposite side to the above.

  A chamfered portion 155 b is provided in each of the plurality of third through holes 155 a. Specifically, chamfers 155 b are provided on the radially outer side of the third through holes 155 a. Here, the third through hole 155a is smaller in diameter than the first through hole 152a.

As mentioned above, although embodiment of this invention was described, this invention is not limited to these, A various change is possible unless it deviates from the meaning of this invention.

-Other embodiment-

  (A) In the first embodiment, an example in which the plurality of first through holes 54a are formed in the range from the second perforated cylinder 53 to the first flange 59a in the axial direction is shown. The The formation range of the plurality of first through holes 54 a is not limited to the above embodiment. For example, it may be formed between the axial center of the pair of flanges 59 and the first flange 59a.

  (B) In the second embodiment, the third perforated cylinder portion 155 of the bobbin trunk 151 is provided on the second flange portion 59b side of the first perforated cylinder portion 152. Instead of this, the third perforated cylinder 155 may be provided between the first perforated cylinder 152 and the non-perforated cylinder 153.

  (C) In the second embodiment, although the example in which the bobbin trunk 151 has the third perforated cylinder 155 is described, the first perforated cylinder 152, the non-perforated cylinder 153, and the like are described. The bobbin trunk 151 may be configured with the second perforated cylinder 154.

REFERENCE SIGNS LIST 1 reel body 5 spool 5 spool 51 line winding barrel portion 59 flange portion 52, 152 first perforated cylinder portion 53, 154 second perforated cylinder portion 153 non-perforated cylinder portion 155 third perforated cylinder portion 54 a, 152 a first Through hole 55a, 154a second through hole 155a third through hole

Claims (8)

A spool of a dual bearing reel whose rotation is braked by applying a magnetic force,
A cylindrical bobbin trunk portion around which fishing line is wound;
A pair of flanges provided separately at both ends of the bobbin trunk,
Equipped with
The bobbin trunk is
A first perforated cylinder provided on one side of the pair of flanges and having a first through hole;
And a second perforated cylinder provided on the other side of the pair of flanges, on which the magnetic force for rotational braking acts and in which a second through hole smaller in diameter than the first through hole is provided;
Double-bearing reel spool. The diameter of the second through hole is equal to or less than the thickness of the second perforated cylinder portion.
A spool of the dual bearing reel according to claim 1. A chamfered portion is provided on at least one of the first through hole and the second through hole.
The spool of the dual bearing reel according to claim 1 or 2. A spool of a dual bearing reel whose rotation is braked by applying a magnetic force,
A cylindrical bobbin trunk portion around which fishing line is wound;
A pair of flanges provided separately at both ends of the bobbin trunk,
Equipped with
The bobbin trunk is
A first perforated cylinder provided on one side of the pair of flanges and having a first through hole;
A non-perforated cylindrical portion provided on the other side of the pair of flanges and on which the magnetic force for rotational braking acts;
It has a second perforated cylinder provided between the non-perforated cylinder and the other flange and provided with a second through hole smaller in diameter than the first through hole.
Double-bearing reel spool. It further has a third perforated cylinder part provided on the opposite side across the second perforated cylinder part and the non-perforated cylinder part and provided with a third through hole smaller in diameter than the first through hole.
The spool of the dual bearing reel according to claim 4. The diameter of the second through hole is equal to or less than the thickness of the second perforated cylinder portion.
The spool of the dual bearing reel according to claim 4 or 5. A first chamfered portion is provided in at least one of the first through hole and the second through hole.
The spool of the dual bearing reel according to any one of claims 4 to 6. A second chamfered portion is provided in the third through hole,
A spool of the dual bearing reel according to claim 5.

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