Fishing reel with double bearings

Abstract

To provide a double-bearing fishing reel that can improve the drag force of the drag mechanism while keeping the number of parts in the drag mechanism to a minimum. [Solution] The double-bearing fishing reel 1 comprises a handle shaft 10 and a drag mechanism 12. The drag mechanism 12 is positioned on the outer circumference of the handle shaft 10. The drag mechanism 10 includes a drag washer 13, a drive gear 14, and a friction plate 15. The drag washer 13 is supported on the handle shaft 10 so as to be immovable and immovable in the axial direction. The drive gear 14 is rotatably supported on the handle shaft 10. The friction plate 15 is positioned radially on the handle shaft 10 between the drag washer 13 and the drive gear 14, and contacts the drag washer 13 axially at a first contact surface 15a and contacts the drive gear 14 axially at a second contact surface 15b. The drag washer 13 has a recess 20 that is recessed in the axial direction from at least one of the first contact surface 51a and the second contact surface 15b.

Description

Technical Field

[0001] The present invention relates to a two-bearing reel for fishing.

Background Art

[0002] The two-bearing reel for fishing includes a drag mechanism that brakes the rotation of the spool in the fishing line payout direction. In the drag mechanism of Patent Document 1, a friction plate is disposed outside an annular member supported on the outer periphery of the handle shaft, and the average diameter of the pressure contact between the friction plate and the pressing surface of the drive gear is increased to improve the drag force of the drag mechanism.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the drag mechanism of Patent Document 1, the inner periphery of the annular member is supported by the handle shaft, and the friction plate is positioned by the outer periphery of the annular member. Therefore, a corresponding accuracy is required for the concentricity between the inner periphery and the outer periphery of the annular member. Further, when the diameter of the flange portion of the handle shaft that supports the drag washer in the axial direction is smaller than the outer diameter of the annular member, a problem occurs in that a shearing force acts on the drag washer.

[0005] An object of the present invention is to provide a two-bearing reel for fishing that can improve the drag force of the drag mechanism while suppressing an increase in the number of parts of the drag mechanism.

Means for Solving the Problems

[0006] Regarding a first aspect of the present invention, a double-bearing fishing reel comprises a handle shaft and a drag mechanism. The drag mechanism is located on the outer circumference of the handle shaft. The drag mechanism includes a drag washer, a drive gear, and a friction plate. The drag washer is supported on the handle shaft so as to be immovable and immovable in the axial direction. The drive gear is rotatably supported on the handle shaft. The friction plate is positioned radially on either the drag washer, the drive gear, or the handle shaft between the drag washer and the drive gear, and contacts the drag washer axially at a first contact surface and contacts the drive gear axially at a second contact surface. At least one of the drag washer, the drive gear, and the friction plate has a recess that is axially recessed from at least one of the first contact surface and the second contact surface.

[0007] In the double-bearing fishing reel relating to the first aspect, a recess provided in at least one of the drag washer, drive gear, and friction plate can increase the average diameter of the contact between the friction plate and the drive gear's pressing surface, or the average diameter of the contact between the friction plate and the drag washer's pressing surface. This makes it possible to improve the drag force of the drag mechanism while suppressing an increase in the number of parts in the drag mechanism. Furthermore, for example, when the drag washer is positioned radially by the handle shaft, a large shear force does not act on the drag washer compared to a conventional configuration in which the friction plate is positioned by the outer circumference of an annular member, so it is not necessary to increase the diameter of the flange portion of the handle shaft.

[0008] Regarding a second aspect of the present invention, in the double-bearing fishing reel according to the first aspect, the recess is provided in the drag washer, and the friction plate is supported on the outer circumference of the handle shaft. In the double-bearing fishing reel according to the second aspect, the drag force of the drag mechanism can be improved while suppressing an increase in the number of parts of the drag mechanism, and since a large shear force does not act on the drag washer, it is not necessary to increase the diameter of the flange portion of the handle shaft.

[0009] Regarding a third aspect of the present invention, in a double-bearing fishing reel according to the first or second aspect, the recess is provided in the drive gear, and the friction plate is supported on the outer circumference of the handle shaft. In a double-bearing fishing reel according to the third aspect, the drag force of the drag mechanism can be improved while suppressing an increase in the number of parts of the drag mechanism, and since a large shear force does not act on the drag washer, it is not necessary to increase the diameter of the flange portion of the handle shaft.

[0010] Regarding a fourth aspect of the present invention, in a double-bearing fishing reel according to any one of the first to third aspects, the recess is provided in the friction plate, and either the drag washer or the drive gear has a protrusion projecting toward the recess, and the friction plate is positioned radially toward the protrusion. In a double-bearing fishing reel according to the fourth aspect, the drag force of the drag mechanism can be improved while suppressing an increase in the number of parts of the drag mechanism.

[0011] Regarding the fifth aspect of the present invention, in a double-bearing fishing reel according to any one of the first to fourth aspects, the handle shaft has a flange that contacts the drag washer in the axial direction, and the recess has a diameter less than or equal to the sum of the diameter of the flange and the thickness of the drag washer. In the double-bearing fishing reel according to the fifth aspect, no large shear force acts on the drag washer. [Effects of the Invention]

[0012] According to the present invention, it is possible to provide a double-bearing fishing reel that can improve the drag force of the drag mechanism while suppressing an increase in the number of parts of the drag mechanism. [Brief explanation of the drawing]

[0013] [Figure 1] A perspective view of a double-bearing fishing reel. [Figure 2] A partial cross-sectional view of a double-bearing fishing reel. [Figure 3] A partial cross-sectional view of a double-bearing fishing reel according to the first modified example. [Figure 4] A partial cross-sectional view of a double-bearing fishing reel according to a second modified example. [Figure 5]Partial cross-sectional view of a fishing two-bearing reel according to the third modification. [Figure 6] Partial cross-sectional view of a fishing two-bearing reel according to the fourth modification.

Mode for Carrying Out the Invention

[0014] FIG. 1 is a perspective view of a fishing two-bearing reel 1 provided with a drag mechanism according to an embodiment of the present invention. FIG. 2 is a partial cross-sectional view of the fishing two-bearing reel 1.

[0015] As shown in FIGS. 1 and 2, the fishing two-bearing reel 1 includes a reel body 2, a handle 3, and a spool 4. Further, the fishing two-bearing reel 1 includes various well-known mechanisms not shown in the drawings, such as a rotation transmission mechanism for transmitting the rotation of the handle 3 to the spool 4, a clutch mechanism, a casting control mechanism, and a spool braking mechanism.

[0016] In the following description, when fishing, the direction in which the fishing line is paid out is referred to as the front, and the opposite direction is referred to as the rear. Also, the left and right refer to the left and right when the fishing two-bearing reel 1 is viewed from the rear.

[0017] The reel body 2 has a frame 6, a left cover 7 that covers the left side of the frame 6, and a right cover 8 that covers the right side of the frame 6. The frame 6 has a first side plate 6a, a second side plate 6b disposed at an interval from the first side plate 6a, and a plurality of connecting portions 6c that connect the first side plate 6a and the second side plate 6b.

[0018] The handle 3 is rotatably mounted on the side of the reel body 2. In the present embodiment, the handle 3 is mounted on the left side of the reel body 2.

[0019] The spool 4 is rotatably supported by the reel body 2 between the first side plate 6a and the second side plate 6b. The spool 4 is fixed to a spool shaft (not shown) that is rotatably supported by the reel body 2, and is rotatably supported by the reel body 2 via the spool shaft.

[0020] As shown in Fig. 2, the two-bearing reel 1 for fishing is provided with a handle shaft 10 and a drag mechanism 12. The handle shaft 10 is rotatably mounted on the reel body 2. The handle shaft 10 is fixed to the handle 3 and rotates integrally with the handle 3. The handle shaft 10 extends parallel to the spool shaft. The rotation of the handle shaft 10 in the line payout direction is prohibited by a roller type one-way clutch and a claw type one-way clutch.

[0021] In the following description, the axial direction of the handle shaft 10 is simply referred to as the axial direction, the direction orthogonal to the axial direction is referred to as the radial direction, and the direction around the axis of the handle shaft 10 is referred to as the circumferential direction.

[0022] The handle shaft 10 has a shaft portion 10a and a flange portion 10b. The shaft portion 10a extends in the axial direction. The flange portion 10b projects radially outward from the shaft portion 10a. The outer diameter of the flange portion 10b is larger than the outer diameter of the shaft portion 10a.

[0023] The drag mechanism 12 brakes the rotation of the spool 4 in the fishing line payout direction. The drag mechanism 12 has a drag washer 13, a drive gear 14, a friction plate 15, and an adjustment member 16. The drag washer 13 is supported on the shaft portion 10a of the handle shaft 10 so as not to be axially movable and rotatable. The drag washer 13 is supported by the flange portion 10b of the handle shaft 10 in the axial direction. The drag washer 13 is arranged in contact with the flange portion 10b of the handle shaft 10 in the axial direction. The drag washer 13 also functions as a ratchet wheel of a claw type one-way clutch. The drag washer 13 has a plurality of ratchet teeth 13a arranged at intervals in the circumferential direction on the outer peripheral surface.

[0024] The drive gear 14 is rotatably supported on the outer circumference of the shaft portion 10a of the handle shaft 10. The drag mechanism 12 brakes the rotation of the spool 4 in the line-paying direction by braking the rotation of the drive gear 14 in the line-paying direction. The drive gear 14 functions as part of a rotation transmission mechanism that transmits the rotation of the handle 3 to the spool 4. The drive gear 14 meshes with a pinion gear (not shown) located on the outer circumference of the spool shaft. The rotation of the handle 3 is transmitted to the drive gear 14 via the drag mechanism 12.

[0025] The friction plate 15 is an annular member. The friction plate 15 is positioned radially between the drag washer 13 and the drive gear 14. In this embodiment, the friction plate 15 is supported on the outer circumference of the shaft portion 10a of the handle shaft 10. That is, the friction plate 15 is positioned radially by the shaft portion 10a of the handle shaft 10.

[0026] The friction plate 15 is positioned in contact with the drag washer 13 and the drive gear 14. The friction plate 15 has a first contact surface 15a and a second contact surface 15b. The first contact surface 15a is positioned axially opposite to the drag washer 13. The second contact surface 15b is the surface opposite to the first contact surface 15a and is positioned axially opposite to the drive gear 14. The friction plate 15 is in axial contact with the drag washer 13 at the first contact surface 15a. The drag washer 13 is in axial contact with the drive gear 14 at the second contact surface 15b.

[0027] At least one of the drag washer 13, drive gear 14, and friction plate 15 has a recess 20. The recess 20 is recessed in the axial direction from at least one of the first contact surface 15a and the second contact surface 15b. In this embodiment, the recess 20 is provided in the drag washer 13 and is recessed in the axial direction from the first contact surface 15a. The recess 20 is positioned opposite the friction plate 15 in the axial direction. The recess 20 is separated from the drag washer 13 in the axial direction. The recess 20 is positioned radially inward from the first contact surface 15a.

[0028] The recess 20 extends in the radial and circumferential directions. The recess 20 is positioned in close proximity to the handle shaft 10 in the radial direction. The recess 20 is positioned adjacent to the outer circumferential surface of the shaft portion 10a of the handle shaft 10 in the radial direction. The recess 20 is positioned around the outer circumferential surface of the handle shaft 10 when viewed from the axial direction. In the drag washer 13, the recess 20 is positioned around the through hole 13b through which the handle shaft 10 passes. The first contact surface 15a contacts the drag washer 13 in the axial direction on the radially outer side of the recess 20.

[0029] The recess 20 has a diameter less than or equal to the diameter of the flange portion 10b of the handle shaft 10 plus the thickness of the drag washer 13. In this embodiment, the recess 20 has a diameter approximately the same as the diameter of the flange portion 10b of the handle shaft 10.

[0030] As shown in Figure 1, the adjustment member 16 is for adjusting the drag force of the drag mechanism 12. The adjustment member 16 is located between the handle 3 and the left-side cover 7. The adjustment member 16 is screwed into a male thread formed on the outer circumference of the handle shaft 10 and moves axially in response to rotation. The axial movement of the adjustment member 16 changes the pressing force of a pressing mechanism (not shown) that presses against the drive gear 14, thereby changing the contact force between the drag washer 13 and the friction plate 15 of the drive gear 14. This adjusts the drag force of the drag mechanism 12. The pressing mechanism has the same configuration as conventional designs and consists of an inner ring of a roller-type one-way clutch, a bearing member, a disc spring, etc.

[0031] In the double-bearing fishing reel 1 described above, the recess 20 provided in the drag washer 13 allows for an increase in the average diameter of the contact between the friction plate 15 and the pressing surface of the drag washer 13. This makes it possible to improve the drag force of the drag mechanism 12 while keeping the number of parts of the drag mechanism 12 to a minimum.

[0032] Furthermore, compared to the conventional configuration in which the friction plate is positioned by the outer circumference of the annular member, a large shear force does not act on the drag washer 13, so it is not necessary to increase the diameter of the flange portion 10b of the handle shaft 10. Moreover, even if, for example, the diameter of the recess 20 is set to the value obtained by adding the plate thickness of the drag washer 13 to the diameter of the flange portion 10b of the handle shaft 10, a large shear force does not act on the drag washer 13.

[0033] <Other Embodiments> Although one embodiment of the present invention has been described above, the present invention is not limited to the above embodiment, and various modifications are possible without departing from the spirit of the invention.

[0034] In the first modified example shown in Figure 3, the recess 120 is provided in the drive gear 14. The recess 120 is recessed in the axial direction compared to the second contact surface 15b. The recess 120 is positioned opposite the friction plate 15 in the axial direction. In the drive gear 14, the recess 120 is positioned around the through hole 14a through which the handle shaft 10 passes. The second contact surface 15b contacts the drive gear 14 in the axial direction on the radially outer side of the recess 120. In the first modified example, a recess 20 may also be provided in the drag washer 13.

[0035] In the second modified example shown in Figure 4, the recess 220 is provided in the friction plate 15. The recess 220 is recessed in the axial direction compared to the first contact surface 15a. The recess 220 is positioned opposite the drag washer 13 in the axial direction. The recess 220 is positioned in the friction plate 15 around the through hole 15c through which the handle shaft 10 passes. The first contact surface 15a contacts the drag washer 13 in the axial direction on the radially outer side of the recess 220. The recess 220 may also be provided on the surface of the friction plate 15 that faces the drive gear 14 in the axial direction.

[0036] In the third modified example shown in Figure 5, the recess 320 is provided in the friction plate 15, and the drag washer 13 has a protrusion 13c that projects toward the recess 320. The friction plate 15 is positioned radially toward the protrusion 13c. The recess 320 is formed by a through hole 115c that penetrates the friction plate 15 in the axial direction. The handle shaft 10 is positioned to pass through the through hole 115c. The protrusion 13c is located on the inner circumference of the recess 320. Preferably, the amount of protrusion of the protrusion 13c is within the range of 30% to 80% of the plate thickness of the friction plate 15.

[0037] In the fourth modified example shown in Figure 6, the recess 320 has the same configuration as in the third modified example, and the drive gear 14 has a protrusion 14b that projects toward the recess 320. The friction plate 15 is positioned radially by the protrusion 14b. The protrusion 14b is located on the inner circumference of the recess 320. Preferably, the amount of protrusion of the protrusion 14b is in the range of 30% to 80% of the thickness of the friction plate 15.

[0038] Furthermore, the recesses 120, 220, and 320 have a diameter that is less than or equal to the sum of the diameter of the flange portion 10b of the handle shaft 10 and the thickness of the drag washer 13. [Explanation of Symbols]

[0039] 1. Fishing reel with double bearings 10 Handle shaft 10a Tsuba 12 Drag Mechanism 13 Drag Washer 14 Drive Gear 15 Friction plate 15a 1st contact surface 15b Second contact surface 20,120,220,320 recesses 13c, 14b Convex part

Claims

1. The handle shaft and A drag mechanism arranged around the handle shaft, Equipped with, The aforementioned drag mechanism is A drag washer is supported on the handle shaft so as to be immovable in the axial direction and immovable in the rotation, A drive gear rotatably supported on the aforementioned handle shaft, A friction plate is positioned radially between the drag washer and the drive gear, on either the drag washer, the drive gear, or the handle shaft, and contacts the drag washer in the axial direction at a first contact surface, and contacts the drive gear in the axial direction at a second contact surface. It has, At least one of the drag washer, the drive gear, and the friction plate has a recess that is recessed in the axial direction from at least one of the first contact surface and the second contact surface. A double-bearing fishing reel.

2. The double-bearing fishing reel according to claim 1, wherein the recess is provided in the drag washer and the friction plate is supported on the outer circumference of the handle shaft.

3. The double-bearing fishing reel according to claim 1, wherein the recess is provided in the drive gear and the friction plate is supported on the outer circumference of the handle shaft.

4. The recess is provided in the friction plate, Either the drag washer or the drive gear has a protrusion that projects toward the recess, and the friction plate is positioned radially toward the protrusion. A double-bearing fishing reel according to claim 1.

5. The handle shaft has a flange portion that contacts the drag washer in the axial direction, The recess has a diameter less than or equal to the sum of the diameter of the flange and the thickness of the drag washer. A double-bearing fishing reel according to any one of claims 1 to 4.

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