JPH11169036A - Reel for fishing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To maintain a sufficient rigidity and reduce the weight by reducing the wall thickness in a reel for fishing. SOLUTION: This reel for fishing is a double bearing reel attached to a fishing rod, used for winding a fishing line and equipped with a reel body and a spool 12. The reel body is attached to the fishing rod and at least a part thereof is made of a magnesium alloy prepared by injection molding according to a thixomolding method. The spool 12 is attached to the reel body and the fishing line is wound around the outer periphery thereof.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fishing reel, and more particularly to a fishing reel mounted on a fishing rod for winding a fishing line.

[0002]

2. Description of the Related Art Fishing reels mounted on fishing rods for winding fishing lines mainly include spinning reels, dual bearing reels and single bearing reels. This type of fishing reel has a reel body mounted on a fishing rod, and a spool for thread winding mounted on the reel body. In a dual bearing reel and a single bearing reel, the spool is rotatably supported by the reel body, and in the spinning reel, the spool is mounted on the reel body so as to be movable back and forth. Conventionally, aluminum alloys, synthetic resins, and the like are used for components such as a reel body and a spool of this type of fishing reel.

[0003]

SUMMARY OF THE INVENTION Parts of a fishing reel made of synthetic resin can be manufactured at low cost and can be reduced in weight. However, since the flexural modulus is small, the wall thickness becomes thick and heavy to maintain the rigidity. Moreover, a synthetic resin is hard to obtain a good texture when touched, and it is difficult to obtain a high-quality appearance.

A fishing part made of an aluminum alloy is more expensive and heavier than a synthetic resin, but has a larger flexural modulus than a synthetic resin. Therefore, it can be made thinner than that made of a synthetic resin, and the texture is good, and it is easy to obtain a high-grade appearance. However, since the bending elastic modulus is not so large as a metal, it is difficult to reduce the wall thickness to maintain a sufficient rigidity, resulting in an increase in weight.

An object of the present invention is to provide a fishing reel,
It is an object of the present invention to maintain sufficient rigidity and achieve weight reduction by thinning.

[0006]

A fishing reel according to a first aspect of the present invention is a reel mounted on a fishing rod for winding a fishing line, and includes a reel body and a spool.
The reel body is mounted on a fishing rod, and at least a part thereof is made of a magnesium alloy obtained by injection molding by a thixomolding method. The spool is mounted on the reel body and has a fishing line wound around the outer periphery.

[0007] Here, the bending elastic modulus of the magnesium alloy is about 10 times or more as large as that of a synthetic resin such as ABS resin or PC resin, and more than twice as much as that of a carbon fiber reinforced resin. The rigidity of the part made of metal is increased. In addition, since it is manufactured by injection molding by the thixomolding method, a thin and uniform product with little sink marks and cracks can be manufactured. Therefore, it is possible to maintain the sufficient rigidity and to reduce the weight by reducing the thickness.

A fishing reel according to a second aspect of the present invention is the dual bearing reel according to the first aspect, wherein the spool is rotatably mounted on the reel body around an axis in a direction intersecting the axial direction of the fishing rod. In this case, at least a part of the reel body of the dual-bearing reel can be maintained at a sufficient rigidity and can be reduced in thickness to reduce the weight. A fishing reel according to a third aspect of the present invention is the fishing reel according to the second aspect, wherein the spool is made of a magnesium alloy obtained by injection molding by a thixomolding method, and the spool is made of stainless steel via an aluminum sleeve. Fixed. In this case, even if a magnesium alloy spool having a high ionization tendency is fixed to a stainless steel spool shaft having a low ionization tendency, an aluminum sleeve between which the ionization tendency is located is interposed. Therefore, the spool is less likely to undergo electrolytic corrosion.

A fishing reel according to a fourth aspect of the present invention is the fishing reel according to the second or third aspect, wherein the reel body has a connecting member for connecting the pair of side plates arranged at intervals in the crossing direction. And a frame having: In this case, the frame can be integrally formed.
A fishing reel according to a fifth aspect of the present invention is the fishing reel according to the fourth aspect, wherein the frame is made of a magnesium alloy obtained by injection molding by a thixomolding method. In this case, it is possible to maintain the sufficient rigidity of the frame and reduce the weight by reducing the thickness.

A fishing reel according to a sixth aspect of the present invention is the fishing reel according to the fourth or fifth aspect, wherein the reel body further includes a pair of side covers that cover both sides of the frame. Invention 7
In the fishing reel according to the sixth aspect, the side cover is made of a magnesium alloy obtained by injection molding by a thixomolding method. In this case, it is possible to maintain the sufficient rigidity of the side cover and reduce the weight by reducing the thickness.

The fishing reel according to an eighth aspect of the present invention is the spinning reel according to the first aspect, wherein the spool is mounted on the reel body such that the spool can move back and forth in a direction along the axial direction of the fishing rod. In this case, at least a part of the reel body of the spinning reel can maintain sufficient rigidity and be reduced in thickness to reduce the weight. A fishing reel according to a ninth aspect of the present invention is the fishing reel according to the eighth aspect, wherein the spool is made of a magnesium alloy obtained by injection molding by a thixomolding method. In this case, the fishing reel according to Invention 10 is capable of maintaining a sufficient rigidity and reducing the thickness by reducing the thickness of the spool, and the reel body according to Invention 8 or 9, wherein the reel body supports the spool. A reel body having a housing portion and a rod attachment portion formed integrally with the housing portion, and a lid body detachably fixed to the reel body.

[0012] The fishing reel according to the eleventh aspect is the fishing reel according to the tenth aspect.
Wherein the reel body is made of a magnesium alloy obtained by injection molding by a thixomolding method. In this case, the fishing reel according to the invention 12 is capable of maintaining a sufficient rigidity and reducing the thickness by reducing the thickness of the reel body. It is made of a magnesium alloy obtained by injection molding according to the method.
In this case, it is possible to reduce the weight by reducing the thickness while maintaining sufficient rigidity of the lid body.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 FIG. 1 is a plan view of a dual bearing reel according to an embodiment of the present invention. The dual-bearing reel shown in the drawing is a bait reel, which includes a reel body 1, a spool rotation handle 2 arranged on the side of the reel body 1, and a drag adjustment arranged on the reel body 1 side of the handle 2. A star drag 3 is provided. The handle 2 is of a double handle type having a plate-shaped arm portion 2a and handles 2b rotatably mounted on both ends of the arm portion 2a. The outer surface of the arm portion 2a is formed of a smooth surface with no seams, and has a structure in which the fishing line is not easily entangled.

As shown in FIG. 2, the reel body 1 includes a frame 5 made of, for example, a magnesium alloy, a first side cover 6 and a second side cover 7 made of a magnesium alloy mounted on both sides of the frame 5, A front cover 10 made of a magnesium alloy is attached to the front of the frame 5 so as to be freely opened and closed. Each part made of these magnesium alloys is obtained by injection molding by a thixomolding method. Also,
Each part secures the corrosion resistance of the outer peripheral surface by chromate treatment. The frame 5 has a pair of side plates 8 and 9 arranged to face each other at a predetermined interval, and a plurality of connecting portions 11 connecting these side plates 8 and 9.
By manufacturing the reel body 1 by injection molding by such a thixomolding method, sinking and cracking are reduced even if the reel body is made thin, strength can be maintained, and weight reduction can be achieved.

The second side cover 7 on the handle 2 side is detachably fixed to the side plate 9 with screws made of aluminum alloy. The first side cover 6 opposite to the handle 2 is detachably attached to the side plate 8 of the frame 5 by a bayonet structure 14. An opening 8a through which the spool 12 can pass is formed in the side plate 8 opposite to the handle 2 as shown in FIG. A long hole 8b is formed in front of the opening 8a to allow the front cover 10 to be freely opened and closed. The long hole 8b is formed obliquely in front of the opening 8a, and a similar long hole (not shown) is formed in the side plate 9 on the handle 2 side at a position facing the long hole 8b. .

As shown in FIGS. 1 and 4, the front cover 10 includes a cover body 10a formed of a smooth curve continuous with the side covers 6 and 7, and the cover body 10a is connected to the side plates 8 and 9.
And a mounting leg portion 10b for mounting on the vehicle. An opening 10d through which a line guide 27 of the level wind mechanism 15 described later can move is formed on the front surface of the cover body 10a. An engagement piece 10e that engages with the side plates 8, 9 is formed at a lower front portion of the front cover 10. This engagement piece 10
A semispherical projection 10f is formed at the tip of e, and the projection 10f can move through a concave hole (not shown) formed on the inner surface of the side plates 8, 9.

The mounting leg 10b is a U-shaped member as viewed from the front, and a shaft 10c (only the side plate 8 side is shown in FIG. 4) protrudes outward from both ends. The shaft portion 10c is provided with a side plate 8,
9 and is movable in the longitudinal direction of the long hole.
The shaft portion 10c on the side plate 8 side further projects outward from the side plate 8. Such a front cover 10 can be freely opened and closed with respect to the side plates 8 and 9 between an open position shown by a two-dot chain line and a closed position shown by a solid line in FIG.

In the frame 5, there are arranged a spool 12, a level wind mechanism 15 for uniformly winding fishing line in the spool 12, and a thumb rest 17 to be applied to a thumb when performing summing. A gear mechanism 18 for transmitting the rotational force from the handle 2 to the spool 12 and the level wind mechanism 15, a clutch mechanism 13, and a clutch in accordance with the operation of the thumb rest 17 are provided between the frame 5 and the second side cover 7. A clutch engaging / disengaging mechanism 19 for engaging and disengaging the mechanism 13, a drag mechanism 21, and a first casting control mechanism 22 are arranged. Also,
A centrifugal brake mechanism 23 for suppressing backlash during casting and a second casting control mechanism 24 are arranged between the frame 5 and the first side cover 6.

The spool 12 is a member made of a magnesium alloy obtained by injection molding by a thixomolding method. The spool 12 has a dish-shaped flange 1 on both sides.
2a, and has a cylindrical bobbin trunk 12b between both flanges 12a. Also, the spool 12
On the inner peripheral side of the bobbin trunk 12b, there is a cylindrical boss 12c integrally formed substantially at the center in the axial direction. As shown in FIG. 3, a sleeve 20 made of an aluminum alloy is press-fitted on the inner peripheral side of the boss 12c. The sleeve 20 is interposed to prevent electrolytic corrosion of the spool 12 made of a magnesium alloy. Spool 12
Is non-rotatably fixed to the spool shaft 16 passing through the sleeve 20 by, for example, serration connection. This fixing method is not limited to a fixing method using irregularities such as serration bonding, and various bonding methods such as bonding and insert molding can be used.

The spool shaft 16 is, for example, a rod member made of stainless steel, and extends outside the second side cover 7 through the side plate 9 as shown in FIG. When the stainless steel spool shaft 16 is brought into direct contact with the magnesium alloy spool 12, the ionization tendency of the magnesium alloy is considerably larger than that of stainless steel (iron).
The spool 12 may be subject to electrolytic corrosion. In order to prevent this, a sleeve 20 made of an aluminum alloy having an ionization tendency between a magnesium alloy and stainless steel is used.
It was interposed. One end of the spool shaft 16 extends
The boss 29 formed on the second side cover 7 is rotatably supported by a bearing 35b. The other end of the spool shaft 16 is rotatably supported by a bearing 35a in the centrifugal brake mechanism 23. These bearings are sealed ball bearings. The spool shaft 16 has a large-diameter portion 16a at the center to which the spool 12 is fixed, and two small-diameter portions 16b and 16c formed at both ends.

The large diameter portion 16a is arranged in a space inside the bobbin trunk 12b, and a serration 16d for fixing the spool 12 is formed on the outer peripheral surface of the central portion. At the right end in FIG. 3 of the large diameter portion 16a, a parallel chamfered portion 16e constituting the clutch mechanism 13 is formed. The small diameter portion 16c on the left side is further reduced in diameter in two steps in a stepwise manner, and the tip is supported by the brake case 65 by the bearing 35. A pinion gear 32 is supported by the small diameter portion 16b on the right side so as to be movable in the axial direction. The distal end of the small diameter portion is rotatably supported by a bearing 35a. Note that both ends of the spool shaft 16 have spherical surfaces in order to suppress an increase in rotation resistance.

The level wind mechanism 15 is shown in FIGS.
As shown in FIG. 1, the guide tube 25 includes a guide tube 25 fixed between the pair of side plates 8 and 9, a worm shaft 26 rotatably supported in the guide tube 25, and a line guide 27. A long groove is formed in the outer peripheral surface of the guide cylinder 25 in the axial direction, and a locking portion 27 d attached to the line guide 27 extends from the groove toward the worm shaft 26. A gear 28a constituting the gear mechanism 18 is fixed to an end of the worm shaft 26. A helical groove 26a is formed in the worm shaft 26, and the locking portion 27d is engaged with the helical groove 26a. Therefore, the worm shaft 26 is rotated via the gear mechanism 18, so that the line guide 27 reciprocates along the guide cylinder 25. The fishing line is inserted into the line guide 27, and the fishing line is uniformly wound around the spool 12. A hard ring 27a for guiding the fishing line is fitted on the upper part of the line guide 27.

As shown in FIG. 2, the gear mechanism 18 is fixed to a main gear 31 fixed to a handle shaft 30, a cylindrical pinion gear 32 meshing with the main gear 31, and an end of the worm shaft 26 described above. Gear 28a and a gear 28b that is fixed to the handle shaft 30 so as not to rotate and that meshes with the gear 28a. As shown in FIG. 3, the pinion gear 32 is a tubular member that is disposed outside the side plate 9 and through which the spool shaft 16 penetrates at the center, and is mounted on the spool shaft 16 so as to be movable in the axial direction. Pinion gear 32
3 is a toothed portion 32a formed on the outer peripheral portion on the right end side of FIG. 3 and meshing with the main gear 31, and a meshing portion 32 formed on the other end side.
b, and a constricted portion 32c formed between the tooth portion 32a and the meshing portion 32b. Meshing part 32b
Consists of an oval concave hole formed on the end face of the pinion gear 32, and a chamfered part 16e formed at the end of the large diameter part 16a of the spool shaft 16 is locked therein. Here, the pinion gear 32 moves outward and its meshing portion 32b
When the chamfered portion 16 e of the spool shaft 16 is separated from the concave hole of the spool shaft 16, the rotational force from the handle shaft 30 is not transmitted to the spool 12. The concave hole of the engaging portion 32b and the chamfered portion 16
e constitutes the clutch mechanism 13.

[0024] As shown in FIG.
A rear portion between the pair of side plates 8 and 9 is disposed behind the spool 12, and also serves as a clutch operation lever. Frame 5
Elongated holes (not shown) are formed in the side plates 8 and 9.
The rotation shaft 17a of the thumb rest 17 is rotatably supported by the elongated hole. For this reason, the thumb rest 17 can be slid up and down along the long hole.

The clutch engaging / disengaging mechanism 19 has a clutch yoke 40, as shown in FIG. The clutch engagement / disengagement mechanism 19 moves the clutch yoke 40 in parallel with the axis of the spool shaft 16 by rotating the thumb rest 17. Further, when the handle shaft 30 rotates in the line winding direction, the clutch yoke 40 is moved so that the clutch mechanism 13 is automatically turned on. The clutch yoke 40 is arranged on the outer peripheral side of the spool shaft 16, and is supported by two pins 41 (only one is shown) so as to be movable in parallel with the axis of the spool shaft 16. The spool shaft 16 can rotate relative to the clutch yoke 40. That is, even if the spool shaft 16 rotates, the clutch yoke 40 does not rotate. Also, the clutch yoke 40
Has an engaging portion 40a at the center thereof for engaging with the constricted portion 32c of the pinion gear 32. Further, the outer circumference of each pin 41 supporting the clutch yoke 40, the clutch yoke 4
A spring 42 is arranged between the first cover 0 and the second side cover 7, and the clutch yoke 40 is constantly biased inward (toward the clutch engagement side) by the spring 42.

In such a configuration, in a normal state,
The pinion gear 32 is located at an inner clutch engagement position, and the meshing portion 32b and the chamfered portion 16e of the spool shaft 16 are engaged to be in a clutch-on state.
On the other hand, when the pinion gear 32 is moved outward by the clutch yoke 40, the engagement between the meshing portion 32b and the chamfered portion 16e is released, and the clutch is turned off.

As shown in FIG. 2, the drag mechanism 21 is for pressing the friction plate 45 against the main gear 31 with a predetermined force by rotating the star drag 3 and the friction plate 45 pressed against the main gear 31. Press plate 46
And As shown in FIG. 3, the first casting control mechanism 22 includes a plurality of friction plates 51 disposed so as to sandwich both ends of the spool shaft 16, and a cap for adjusting the force of holding the spool shaft 16 by the friction plates 51. 52. The left friction plate 51 is mounted in the brake case 65. The cap 52 is embedded in the boss portion 29 and cannot be operated unless a special tool is used. The first casting control mechanism 22 is used for reducing the backlash in the axial direction of the spool shaft 16 for the purpose of adjusting the braking force. Therefore, in this embodiment, the first casting control mechanism 22 hardly applies a braking force to the spool 12.

As shown in FIG. 3, the centrifugal brake mechanism 23 includes a brake case 65, a rotating portion 66 provided in the brake case 65, and a radially arranged Slider 67 movably mounted
And a cylindrical brake liner 68 fixed to the inner peripheral surface of the brake case. Brake case 65
Is a short cylindrical member with a bottom, and a bearing housing portion 65a protruding outward is formed at the center of the bottom. Here, a bearing 35a for supporting the spool shaft 16 is housed, and a friction plate 51 of the first casting control mechanism 22 is mounted on a bottom surface thereof. The brake case 65
It is fixed to the first side cover 6 by two screws 69a and 69b. On the outer peripheral surface of the brake case 65, three projections 14a forming the bayonet structure 14 are formed at intervals in the circumferential direction. In the opening 8a, a locking claw 14b is formed at a position facing the projection 14a. The locking claw 14b is formed to protrude outward from the opening in an L-shape.

As shown in FIG. 4, a detent protrusion 65b is formed on the outer peripheral surface of the brake case 65 so as to be in contact with the peripheral surface of the shaft portion 10c of the front cover 10. The detent protrusion 65b is provided to stop the first side cover 6 by abutting on the shaft portion 10c when the front cover 10 is at the closed position. That is, the shaft portion 10c of the front cover 10 realizes the function of preventing the first side cover 6 from rotating. As described above, the first side cover 6 is prevented from rotating by the front cover 10 that covers the front portion of the frame 5 so as to be openable and closable, so that the first side cover 6 can be prevented from rotating without providing a dedicated rotation preventing member.

The rotating portion 66 is a disk-shaped member, and has a plurality of recesses 66a formed in the outer peripheral portion at intervals in the circumferential direction as shown in FIG. A guide shaft 66b is provided upright along the radial direction in the concave portion 66a. Rotating part 66
Is connected to the spool shaft 16 so as to be axially movable and non-rotatable. Further, the rotating part 66 is provided with the spool shaft 16.
Are biased toward the spool 12 by a pressing spring 71 arranged on the outer peripheral side of the small diameter portion 16c.

The slider 67 is movably supported by a plurality of guide shafts 66b provided upright in a concave portion 66a of the rotating portion 66. The slider 67 moves radially outward by centrifugal force and slides on the brake liner 68 in the brake case 65 to brake the spool 12. Here, since the centrifugal force increases in proportion to the square of the rotation speed, the braking force of the centrifugal brake mechanism 23 increases in proportion to the square of the rotation speed.

Second casting control mechanism 24
Is arranged in the brake case 65 as shown in FIGS. 3 and 5. The second casting control mechanism 24 includes a magnetic plate 80 fixed to the end face of the rotating portion 66.
And a swing arm 83 for braking having two magnets 81 and 82 for attracting the magnetic plate 80, and a brake liner 84 disposed on the brake case 65 so as to face the magnetic plate 80.
And a braking adjustment unit 85 for adjusting the braking force by swinging the swing arm 83. The second casting control mechanism 24 adjusts the braking force by changing the number of magnetic fluxes acting on the magnetic plate 80.

The magnetic plate 80 is a disk-shaped member made of soft iron, and is fixed to an end surface of the rotating portion 66 by an appropriate fixing means such as an adhesive. When the magnetic plate 80 is attracted by the magnets 81 and 82, the rotating portion 66 to which the magnetic plate 80 is fixed moves outward in the axial direction, and the magnetic plate 80 contacts the brake liner 84. The swing arm 83 is an arm that swings between a maximum braking position indicated by a solid line in FIG. 5 and a minimum braking position indicated by a two-dot chain line, and the two magnets 8 are spaced apart from each other.
, 82, and a swing shaft 83 non-rotatably mounted at the base end of the magnet holding arm 83a.
b and an operation arm 83c whose base end is non-rotatably mounted on the swing shaft 83b. Magnet holding arm 83a
Is an arc-shaped arm member, which holds two magnets 81, 82 at the distal end and near the proximal end in the longitudinal direction.
Here, when the swing arm 83 is arranged at the maximum braking position, the two magnets 81 and 82 are arranged at substantially symmetric positions facing the magnetic plate 80 with the spool shaft 16 interposed therebetween. The swing shaft 83b is rotatably supported on the bottom surface of the brake case 65. At one end, a magnet holding arm 83a is provided.
The operation arms 83c are non-rotatably mounted at the other ends. The operation arm 83c is an arc-shaped arm member having a long hole 83d formed at the tip. When the operation arm 83c swings, the magnet holding arm 83 moves through the swing shaft 83b.
As a swings, the area of the magnets 81 and 82 facing the magnetic plate 80 changes, and the magnetic flux density of the magnets 81 and 82 transmitted through the magnetic plate 80 changes. As a result, the force for attracting the magnetic plate 80 changes, and the frictional force between the magnetic plate 80 and the brake liner 84 changes to change the braking force.

The brake liner 84 is provided with an intermediate plate 90 disposed parallel to and spaced from the bottom of the brake case 65.
Are mounted non-rotatably at the center of the shaft. The brake liner 84 is made of an abrasion-resistant nylon resin such as a polyslider (trade name) and is used to brake the spool 12 by contacting the magnetic plate 80.

The braking adjustment unit 85 includes a guide member 91 fixed obliquely to the inner surface of the first side cover 6 and a guide member 91.
And a positioning mechanism 93 for positioning the handle member 92. The guide member 91 is disposed along a guide hole 95 formed obliquely in the first side cover 6 and guides the handle member 92 in the longitudinal direction. The handle member 92 has a photographing portion 92 a exposed to the outside of the first side cover 6 and a link shaft portion 92 b protruding inward of the first side cover 6. The link shaft portion 92b is
The operation arm 83c is locked by a long hole 83d formed at the tip of the operation arm 83c. As a result, when the handle member 92 moves between the maximum braking position shown by the solid line and the minimum braking position shown by the two-dot chain line, the link shaft 92b moves between the upper end and the lower end of the elongated hole 83d, and the operating arm 83c swings between the maximum braking position and the minimum braking position. The positioning mechanism 93 includes the imaging unit 9.
Positioning spring 96 fixed to 2a and positioning spring 9
And a positioning fitting 97 for positioning the handle 6 in the moving direction of the handle member 92. The positioning spring 96 is a leaf spring bent in a mountain shape, and its vertex is bent in an arc shape. An arc-shaped unevenness 97 a having a shape along the arc portion of the positioning spring 96 is formed on the positioning fitting 97. Therefore, when the handle member 92 moves, the positioning spring 96 comes into contact with the unevenness 97a of the positioning fitting 97, and the handle member 92 is positioned. As a result, the grip member 9 is moved at a plurality of positions between the maximum braking position and the minimum braking position.
2, the braking force can be adjusted in multiple stages. Next, the operation of the reel will be described.

In a normal state, the clutch yoke 40 is pushed inward (to the left in FIG. 3) by the spring 42, whereby the pinion gear 32 is moved to the engagement position. In this state, the meshing portion 32b of the pinion gear 32 meshes with the chamfered portion 16e of the spool shaft 16, and the clutch is turned on. The rotational force from the handle 2 is applied to the handle shaft 30, main gear 31, pinion gear 32 The power is transmitted to the spool 12 via the spool shaft 16, and the spool 12 rotates in the line winding direction.

When performing the casting, the braking force is adjusted by the handle member 92 in order to suppress the backlash. Then, the thumb rest 17 is pushed downward. Here, the thumb rest 17 moves to the lower detached position along the long holes of the side plates 8 and 9. The movement of the thumb rest 17 causes the clutch yoke 40 to move outward, and the pinion gear 32 engaged with the clutch yoke 40 to move in the same direction. As a result, the meshing portion 3 of the pinion gear 32
The engagement between 2b and the chamfered portion 16e of the spool shaft 16 is released, and the clutch is turned off. In this clutch state, rotation from the handle shaft 30 is not transmitted to the spool 12 and the spool shaft 16, and the spool 12 enters a free rotation state. With the clutch off, spool the spool shaft 1 while thumbing the spool with the thumb resting on the thumb rest 17.
When the fishing rod is shaken while tilting the reel in the axial direction so that 6 is along the vertical plane, a lure is thrown and the spool 12 rotates vigorously in the line feeding direction.

In such a state, the rotation of the spool 12 causes the spool shaft 16 to rotate in the line feeding direction, and the rotation is transmitted to the rotating section 66. When the rotating part 66 rotates, the slider 67 slides on the brake liner 68 to brake the spool 12 by the centrifugal brake mechanism 23. On the other hand, the magnetic plate 80 is attracted to the magnets 81 and 82 in accordance with the swing position of the swing arm 83, and moves to the brake liner 84 side together with the rotating portion 66 against the urging force of the pressing spring 71. Swing arm 8 on brake liner 84
The contact is made with the suction force according to the swing position of No. 3. As a result, the spool 12 is braked with a desired braking force by the frictional force between the magnetic plate 80 and the brake liner 84, and troubles such as backlash are reduced.

Further, even if a backlash occurs in the spool 12, the first side cover 6 can be easily attached and detached by the bayonet structure 14, so that the backlash can be easily eliminated. The procedure for attaching and detaching the first side cover 6 will be described below. In a normal state, the front cover 10 is located at the closed position shown in FIG. At this time, the shaft portion 10c of the front cover 10
Is arranged at the lower end of the elongated hole 8b. The rotation preventing projection 65b fixed to the brake case 65 abuts on the shaft portion 10c, so that the first side cover 6 to which the brake case 65 is fixed cannot rotate counterclockwise in FIG.

When removing the first side cover 6 from the side plate 8 to remove the spool 12, the front cover 10 is pulled out to the open position as shown in FIG. Front cover 10
Is pulled out, the shaft 10c of the front cover 10 is guided by the elongated hole 8b and moves to the upper end. Then, the shaft portion 10c is disengaged from the rotation preventing protrusion 65b, and the first side cover 6 can be rotated counterclockwise in FIG. When the first side cover 6 is rotated counterclockwise in this state, the projections 14a come off from the locking claws 14b provided on the side plate 8, and the first side cover 6 can be removed from the side plate 8. First side cover 6
When the spool 12 is braked by the second casting control mechanism 24, the magnetic plate 80 is attracted to the magnets 81 and 82 and can be removed together with the side cover 6. When the brake is not applied, the opening 8
a.

In the dual bearing reel having such a configuration, since the reel body 1 and the spool 12 are made of a magnesium alloy, the strength can be maintained and the weight of the reel can be reduced. In addition, since each of these parts is obtained by injection molding by the thixomolding method, cracks and sinks are reduced even if each part is made thin. Also, the spool shaft 16 has a significantly different ionization tendency from the magnesium alloy spool.
Since the sleeve 20 is interposed so as not to come into direct contact with the spool 12, the spool 12 is less likely to undergo electrolytic corrosion.

Second Embodiment In the first embodiment, a dual- bearing reel has been described as an example of a fishing reel. However, the present invention can be applied to a spinning reel. 8 to 10, the spinning reel according to the second embodiment of the present invention includes a reel body 102 that rotatably supports a handle 101, a rotor 103, and a spool 104. The rotor 103 is a reel body 1
02 is rotatably supported at the front of the camera. Spool 10
Numeral 4 is for winding the fishing line around its outer peripheral surface, and is arranged at the front of the rotor 103 so as to be movable back and forth.

The reel body 102 has a housing 110 for supporting the rotor 103 and the spool 104, and a lid 111 which is detachably screwed to the housing 110. The casing 110 is a thin member made of a magnesium alloy obtained by injection molding by, for example, a thixomolding method. Inside the casing 110, the rotor 103
There is provided a rotor drive mechanism 105 for rotating the spool, an oscillating mechanism 106 for moving the spool 104 back and forth to uniformly wind the fishing line, and a handle support 107 for rotatably supporting the handle 101. .

The lid 111 is made of, for example, titanium.
This is a member manufactured by the lost wax method. The lid 111 has a thin cover 111a that covers the opening 110a of the housing 110, and a mounting leg 111b that extends upward from the cover 111a. Cover part 1
The front and back surfaces of 11a are almost smooth surfaces. The mounting leg portion 111b is a solid thick member, and its front end extends to the front and rear sides to form a fishing rod mounting portion 111c.

Between the housing 110 and the lid 111,
For example, an insulating sheet 117 made of a synthetic resin such as nylon is interposed. The insulating sheet 11 is provided between the metal housing 110 and the lid 111 having different ionization tendencies.
By interposing 7, the flow of electrons between the housing 110 and the lid 111 is reduced as much as possible, and the magnesium alloy housing 110 is less likely to undergo electrolytic corrosion.

The rotor drive mechanism 105 includes a handle 101
, A master gear 113 integrally formed at the tip of the handle shaft 112, and a pinion gear 114 that meshes with the master gear 113. The handle shaft 112 is rotatably supported by the handle support 107. The pinion gear 114 is formed in a cylindrical shape, and a front portion 114 a thereof extends through the center of the rotor 103 toward the spool 104. And the screw part is formed in the front-end | tip. The pinion gear 114 has an axial middle portion and a rear end portion rotatably supported by the housing 110 of the reel body 102 via bearings 115 and 116, respectively.

The oscillating mechanism 106 is a mechanism for moving the spool shaft 120 fixed to the center of the spool 104 in the front-rear direction to move the spool 104 in the same direction. The spool shaft 120 is made of, for example, stainless steel, and is supported by the reel body 102 via a pinion gear 114 so as to be movable back and forth. The oscillating mechanism 106 has a screw shaft 121 disposed above the spool shaft 120, a slider 122 that moves in the front-rear direction along the screw shaft 121, and an intermediate gear 123 fixed to the tip of the screw shaft 121. doing. The screw shaft 121 is arranged in parallel with the spool shaft 120 and is rotatably supported by the housing 110. Further, a spiral groove 121a is formed on the outer periphery of the screw shaft 121. Slider 1
Reference numeral 22 is slidably mounted on a guide shaft 124 disposed above the screw shaft 121 and parallel to the screw shaft 121. The rear end of the spool shaft 120 is fixed to the slider 122. The intermediate gear 123 meshes with the pinion gear 114.

The handle support portion 107 is provided with a support cylinder 108 provided on the housing 110 and a support cylinder 108 inside the support cylinder 108 at an interval in the axial direction of the handle shaft 112 to rotatably support the handle shaft 112. And one bearing 109. The support cylinder 108 extends outward in a direction orthogonal to the spool shaft 120 in the housing 110. The rotor 103 includes a cylindrical portion 130 and a first rotor arm 131 and a second rotor arm 131 provided on the sides of the cylindrical portion 130 so as to face each other.
And a rotor arm 132. The cylindrical portion 130 and the rotor arms 131 and 132 are integrally formed members made of, for example, an aluminum alloy.

A front wall 133 is formed at the front of the cylindrical portion 130, and a boss 133a is formed at the center of the front wall 133. The front portion 114a of the pinion gear 114 and the spool shaft 120 pass through the through hole of the boss 133a. A nut 134 is arranged on the front side of the front wall 133, and the nut 134 is screwed into a screw portion at the tip of the pinion gear 114. A bearing 135 that rotatably supports the spool shaft 120 is provided on an inner peripheral portion of the nut 134.
Is arranged.

On the front wall 133 of the rotor 103, a cylindrical first thread biting prevention member 1 having a pair of slits in the axial direction is provided.
36 are provided. The first thread bite prevention member 136
Indicates that the fishing line wound around the spool 104 is the rotor 1
This is a member for preventing entry through the gap between the spool shaft 03 and the spool shaft 120. Also, the spool 10
4 and the rotor 103, the spool 1
A second line bite prevention member 137 is provided for preventing the fishing line wound around the rod 04 from entering the inside from the gap with the rotor 103. Second thread bite prevention member 137
Is a pot-shaped member, and a first thread biting prevention member 13
A pair of arc-shaped through holes 137a through which the holes 6 pass are formed. A bearing 138 that rotatably supports the spool shaft 120 is disposed at the center of the second thread bite prevention member 137. A cylindrical portion 137b for closing a gap between the rear end of the spool 104 and the rotor 103, and a pair of rotor locks extending outward from the cylindrical portion 137b are provided on the peripheral edge of the second thread bite prevention member 137. Sections 139a and 139b are provided. The rotor locking portions 139a and 139b are
3 and is engaged with the pair of rotor arms 131 and 132, respectively, and rotates the second thread bite prevention member 137 in conjunction with the rotor 103.

A first bail support member 140 is swingably mounted on the inner peripheral side of the distal end of the first rotor arm 131. The first bail support member 140 is rotatably supported on the first rotor arm 131 by two bearings 140a. A line roller 141 is mounted at the tip of the first bail support member 140 to guide the fishing line to the spool 104. A second bail support member 142 is swingably mounted on the inner peripheral side of the tip of the second rotor arm 132. The second bail support member 142 is made of, for example, a material having a higher specific gravity than other parts, and functions as a balancer for eliminating imbalance during rotation caused by the second bale support member 140 and the line roller 141. It is also possible. First veil support member 140
Line roller 141 and second bail support member 14
A bale 143 is provided between the bale 143 and the bale 143. A bail arm 145 is configured by the bail support members 140 and 142, the line roller 141, and the bail 143. By mounting the bail support members 140 and 142 on the inner peripheral side of the rotor arms 131 and 132 in this manner, the radius of rotation of the bail arm 145 is reduced, and the bail arm 145 is less likely to be in contact with the hand holding the fishing rod. Therefore, the spool 104 and the fishing rod can be brought closer to each other by shortening the mounting leg 111b, and the overall size can be reduced.

Here, both bail support members 140, 142
Is swingable about one swing axis M. And
The point at which the swing axis M intersects with the first bail support member mounting surface of the first rotor arm 131 is defined as the swing center C1, and the swing axis M
When the point at which the second rotor arm 132 and the second bail support member mounting surface of the second rotor arm 132 intersect is defined as the swing center C2, the swing center C
Reference numeral 2 is located forward of the swing center C1. That is,
The swing shaft M is inclined rearward with respect to an axis orthogonal to the spool shaft 120. Further, each bail support member 140, 14
2 are arranged such that their rocking surfaces are orthogonal to the rocking axis M.

A reverse rotation prevention mechanism 150 for the rotor 103 is disposed inside the cylindrical portion 130 of the rotor 103. The reverse rotation prevention mechanism 150 has a roller type one-way clutch (not shown) and an operation mechanism 151 for switching the one-way clutch between an operating state and a non-operating state.
In the one-way clutch, the outer ring is fixed to the housing 110, and the inner ring is fixed to the pinion gear 114. The operation mechanism 151 has an operation lever 152 disposed at a lower portion of the housing unit 110. By swinging the operation lever 152, the one-way clutch is switched between two states. 103 becomes irreversible,
When in the non-operation state, the rotor 103 can rotate in the reverse direction.

The spool 104 is disposed between the first rotor arm 131 and the second rotor arm 132 of the rotor 103, and is fixed to the tip of the spool shaft 120 via an aluminum sleeve 104d. The spool 104 has a bobbin trunk 1 around which a fishing line is wound.
04a, a rear flange 104b formed at the rear of the bobbin trunk 104a, and an aluminum front flange 104c fixed to the front of the bobbin trunk 104a. The bobbin trunk portion 104a and the rear flange portion 104b are integrally formed magnesium alloy thin members. The bobbin trunk portion 104a extends to the outer peripheral side of the cylindrical portion 130 of the rotor 103, and has a trunk length longer than that of a normal spinning reel. Also, both flange portions 104b, 104
The flange height of c is lower than that of a normal spinning reel. Accordingly, the resistance at the time of releasing the line is reduced, and the fishing line is less likely to be twisted even when a thin fishing line is wound around the bobbin trunk 104a.

Next, the operation of the spinning reel will be described. In this spinning reel, at the time of casting, the bail 143 is tilted from the yarn winding side to the yarn releasing side. As a result, the first and second bail support members 140, 142
It rotates in the same direction about the swing axis M. At this time, the first and second bail support members 140, 142 are arranged on the inner peripheral side of the first and second rotor arms 131, 132,
Further, since the swing shaft M is inclined rearward with respect to the spool shaft 120, the first bail support member 140 and the line roller 141 at the tip thereof move further inward than the position in the line winding posture. For this reason, the fishing line fed during casting is less likely to be entangled with the first bail support member 140 and the line roller 141.

At the time of winding the fishing line, the bail 143 is lowered to the line winding posture. This is performed automatically by the action of a cam and a spring (not shown) when the handle 101 is rotated in the line winding direction. When the handle 101 is rotated in the yarn winding direction, the rotational force is applied to the handle shaft 112 and the master gear 1.
13 to the pinion gear 114. The rotational force transmitted to the pinion gear 114 is transmitted to the rotor 103 via the front portion of the pinion gear 114, and
03 rotates in the yarn winding direction.

On the other hand, the screw shaft 121 is rotated by the intermediate gear 123 meshing with the pinion gear 114.
The slider 122 meshing with the one spiral groove 121a is guided by the guide shaft 124 and moves in the front-rear direction. For this reason,
When the spool shaft 120 and the spool 104 reciprocate in the front-rear direction, the fishing line guided to the spool 104 by the bail 143 and the line roller 141
Is wound substantially uniformly in the front-rear direction on the outer peripheral surface of the bobbin trunk 104a.

Also in the spinning reel having such a configuration, since a part of the reel body 102 and the spool 104 are made of a magnesium alloy, the same effects as in the first embodiment can be obtained. Moreover, the thick mounting legs 111 made of titanium alloy
b is formed integrally with the cover portion 111a, and the thin-walled magnesium alloy housing portion 110 for accommodating each drive portion is formed separately from the mounting leg portion 111b, so that the accuracy of the housing portion 110 can be maintained high. The rigidity also increases. Also, mounting leg 1
The strength of 11b can be maintained high. Also, the mounting leg 111
Since b is integrated with the cover portion 111a, the strength can be maintained with a simple structure as compared with a case where the cover b is formed separately.

[Other Embodiments] (a) The form of the fishing reel is not limited to the above-described embodiment, but may be a lever-drag type or an electric dual-bearing reel, a type having a drag mechanism, or a reverse rotation preventing mechanism. Alternatively, the present invention can be applied to other fishing reels such as a spinning reel and a single-bearing reel equipped with a braking mechanism having a brake lever.

(B) In the second embodiment, the cover and the mounting leg are integrally formed. However, the present invention can be applied to a spinning reel in which the housing and the mounting leg are integrally formed.

[0061]

As described above, according to the present invention,
Since the bending elastic modulus of magnesium alloy is about 10 times or more compared to synthetic resins such as ABS resin and PC resin, and more than 2 times compared to carbon fiber reinforced resin, the rigidity of the magnesium alloy part of the reel body is Get higher. In addition, since it is manufactured by injection molding by the thixomolding method, a thin and uniform product with little sink marks and cracks can be manufactured. Therefore, it is possible to maintain the sufficient rigidity and to reduce the weight by reducing the thickness.

[Brief description of the drawings]

FIG. 1 is a plan view of a dual-bearing reel according to an embodiment of the present invention.

FIG. 2 is a sectional plan view thereof.

FIG. 3 is an enlarged sectional view of the periphery of the spool.

FIG. 4 is a side cutaway view thereof.

FIG. 5 is a side cutaway view thereof.

FIG. 6 is a cross-sectional side view when the front cover is in a closed position.

FIG. 7 is a cross-sectional side view with the front cover in an open position.

FIG. 8 is a side sectional view of a spinning reel according to a second embodiment.

FIG. 9 is a bottom sectional view thereof.

FIG. 10 is a rear view thereof.

[Explanation of symbols]

 1,102 Reel body 12,104 Spool 16,120 Spool shaft 20,104d Sleeve

Claims (12)

[Claims] 1. A fishing reel mounted on a fishing rod for winding a fishing line, wherein the reel is mounted on the fishing rod and at least a part thereof is made of a magnesium alloy obtained by injection molding by a thixomolding method. A fishing reel comprising: a main body; and a spool mounted on the reel body and around which a fishing line is wound. 2. The fishing reel according to claim 1, wherein the spool is a dual-bearing reel mounted on the reel body so as to be rotatable about an axis in a direction intersecting with the axial direction of the fishing rod. 3. The spool according to claim 2, wherein the spool is made of a magnesium alloy obtained by injection molding by a thixomolding method, and is fixed to a stainless steel spool shaft via an aluminum sleeve. Fishing reel. 4. The reel body according to claim 2, further comprising a frame having a pair of side plates arranged at intervals in the intersecting direction and a connecting member connecting the side plates.
The fishing reel according to 1. 5. The fishing reel according to claim 4, wherein said frame is made of a magnesium alloy obtained by injection molding by a thixomolding method. 6. The reel body further comprises a pair of side covers covering both sides of the frame.
The fishing reel according to 1. 7. The fishing reel according to claim 6, wherein the side cover is made of a magnesium alloy obtained by injection molding by a thixomolding method. 8. The fishing reel according to claim 1, wherein the spool is a spinning reel mounted on the reel body so as to be movable back and forth in a direction along the axis of the fishing rod. 9. The fishing reel according to claim 8, wherein said spool is made of a magnesium alloy obtained by injection molding by a thixomolding method. 10. A reel body, comprising: a reel body having a housing part supporting the spool, a rod mounting part formed integrally with the housing part, and a lid detachably fixed to the reel body. The fishing reel according to claim 8, comprising a body. 11. The fishing reel according to claim 10, wherein said reel body is made of a magnesium alloy obtained by injection molding by a thixomolding method. 12. The fishing reel according to claim 10, wherein the lid is made of a magnesium alloy obtained by injection molding by a thixomolding method.