JPH10234277A - Ball arm for spinning reel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To suppress the break or deformation of a bail caused by external force as much as possible. SOLUTION: The bail arm 40 for spinning reel is an arm mounted so as to be freely opened/closed between a pair of rotor arms 31 and 32 of spinning reel and is provided with a pair of arm supporting members 41a and 41b, fishing line guiding mechanism 42 and bail 46. The arm supporting members 41a and 41b are respectively mounted at the top ends of a pair of rotor arms 31 and 32 so as to freely swing. The fishing line guiding mechanism 42 is provided at the top end of one arm supporting member 41a. The bail 46 is composed of bent shape memory alloy wires while linking both the ends with the top ends of the fishing line guiding mechanism 42 and the other arm supporting member 41b.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a bail arm and, more particularly, to a bail arm which is openably and closably mounted between a pair of rotor arms of a spinning reel.

[0002]

2. Description of the Related Art A bail arm for guiding fishing line to a spool is provided on a pair of rotor arms of a spinning reel. The bail arm rotates with the rotor and opens and closes between a line releasing position and a line winding position. The bail arm includes a pair of arm support members each of which is swingably mounted at a tip of a pair of rotor arms, a fishing line guide provided at a tip of one arm support, a fishing line guide and the other. Both ends are connected to the tip of the arm support member,
And a veil made of a curved wire. The fishing line guide has a line roller, a fixed shaft fixed to the tip of one of the arm support members to support the line roller, and a fixed shaft cover fixed to the tip of the fixed shaft. One end of the bail is bent and inserted and fixed to the side top of the fixed shaft cover. As a material of the veil, generally, a rust-resistant metal wire such as stainless steel or titanium is used. Non-metallic wires such as synthetic resins and carbon fibers are also used for weight reduction.

In a spinning reel having such a bail arm, when the fishing line is wound on a spool, the bail arm is swung toward the line winding posture and the handle is turned.
Then, the fishing line is guided by the bail, guided to and contacted with the outer peripheral surface of the line roller via the fixed shaft cover. Then, the direction of the fishing line is changed by being guided by the line roller, and the fishing line is wound around the spool.

[0004]

In the above-mentioned conventional bail arm, when the material of the bail is a metal wire, the bale may be deformed when subjected to an external force during transportation or fishing. When the bale is deformed, the rotational balance of the rotor may be lost even if the position of the center of gravity is slightly changed even if the deformation is returned by hand. Further, a force for tilting the swing shaft acts on the arm support member due to the deformation of the bail, and the bail arm may not be able to open and close smoothly.

[0005] When the material of the bail is a non-metallic wire, it may be broken when subjected to an external force. An object of the present invention is to suppress as much as possible the breaking and deformation of a bale due to an external force.

[0006]

The bail arm of the spinning reel according to the first aspect of the present invention is an arm that is openably and closably mounted between a pair of rotor arms of the spinning reel,
The vehicle includes a pair of arm support members, a fishing line guide, and a veil. The arm support members are swingably attached to the tips of the pair of rotor arms, respectively. The fishing line guide is provided at the tip of one of the arm support members.
The bail is formed of a curved shape memory alloy wire, both ends of which are connected to the fishing line guide and the tip of the other arm support member.

In this bail arm, when an external force is applied to the bail, the bail is temporarily deformed while the external force is being applied. However, since the veil is made of a shape memory alloy wire, it can return to its original shape when the external force is removed. For this reason, the veil is less likely to be deformed even when an external force acts. Moreover, since the shape memory alloy has a superelastic property, it is not broken by an external force that normally acts during transportation or fishing.

A bail arm for a spinning reel according to a second aspect of the present invention is the spinning reel bale arm according to the first aspect, wherein the shape memory alloy has a thermoelastic martensitic transformation, and the temperature at which the martensitic transformation occurs is less than room temperature. Alloy. In this case, the temperature at which the martensitic transformation of the shape memory alloy constituting the veil occurs is room temperature (for example, 1 degree Celsius).
(5 degrees to 25 degrees) or less, the temperature often becomes higher than the temperature at which martensite is generated at room temperature, resulting in superelastic properties, and immediately returns to the original shape when external force is removed. When the temperature at which the martensitic transformation occurs in the shape memory alloy is higher than room temperature, when an external force is applied to deform the shape memory alloy, the shape cannot be restored unless heat is applied and the temperature exceeds the temperature. For this reason, handling after deformation is complicated and impractical.

A bail arm for a spinning reel according to a third aspect of the present invention is the spinning reel bale arm according to the second aspect, wherein the superelastic alloy is made of Ti-Ni, Cu-Zn-Al, Au-Cd.
System, Cu-Al-Ni, Cu-Au-Zn system, Cu-S
The alloy is any one selected from the group consisting of n-based, Cu-Zn-X (X = any one of Si, Sn, Al, and Ga), In-Tl-based, and Ni-Al-based alloys.

A bail arm of a spinning reel according to a fourth aspect is the arm according to the third aspect, wherein the superelastic alloy is a Ti—Ni alloy. In this case, the weight can be reduced as compared with the stainless steel veil, and the loss of the dynamic balance due to the veil can be suppressed. The bail arm of the spinning reel according to the fifth aspect is the same as that of the first to fourth aspects.
The bail arm according to any one of the above,
Its shape to balance the dynamic balance of the rotor,
Weight is set. In this case, the dynamic balance of the entire rotor is maintained, so that the change in the position of the center of gravity due to the deformation is reduced, and the loss of the dynamic balance can be further suppressed.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION

[Overall Structure and Structure of Reel Body] Referring to FIGS. 1 to 3, a spinning reel employing an embodiment of the present invention comprises a reel body 2 rotatably supporting a handle 1;
A rotor 3 and a spool 4 are provided. The rotor 3
It is rotatably supported at the front of the reel body 2. The spool 4 winds the fishing line around its outer peripheral surface, and is disposed at the front of the rotor 3 so as to be movable in the front-rear direction.

The reel unit 2 includes a housing 10 for supporting the rotor 3 and the spool 4, a pair of lids 11a and 11b detachably screwed to both side surfaces of the housing 10, and a housing. And a rod mounting portion 12 extending upward from the portion 10.
The housing unit 10 is a thin member made of, for example, an aluminum alloy, and has openings 10a and 10b on both sides. A rotor drive mechanism 5 for rotating the rotor 3 and an oscillating mechanism 6 for moving the spool 4 back and forth to uniformly wind the fishing line are provided inside the housing 10.

The lids 11a and 11b are thin members made of, for example, an aluminum alloy, and cover the openings 10a and 10b of the housing 10, respectively. On one lid portion 11a (the lower side in FIG. 3), there is provided a cylindrical handle support portion 8 that protrudes laterally to support a handle shaft 7 to which the handle 1 is fixed at the tip. Bearings 9, 9 are arranged at both ends of the handle support portion 8, and the handle shaft 7 is rotatably supported by the handle support portion 8 by the bearings 9, 9.

The rod mounting portion 12 is a member extending obliquely upward and upward from the housing portion 10, and is substantially integral with the housing portion 10.
It is shaped like a letter. On an upper part of the rod mounting part 12, a rod mounting surface 12a is formed. The rotor drive mechanism 5 has a master gear 13 formed integrally with the handle shaft 7 at the base end of the handle shaft 7, and a pinion gear 14 that meshes with the master gear 13. The pinion gear 14 is formed in a tubular shape, and a front portion 14 a thereof extends through the center of the rotor 3 toward the spool 4. And the screw part is formed in the front-end | tip. The pinion gear 14 has an axially intermediate portion and a rear end portion having bearings 15 and 1 respectively.
6 and rotatably supported by the housing 10 of the reel body 2.

The oscillating mechanism 6 is a mechanism for moving the spool 4 in the same direction by reciprocating the spool shaft 20 having the center portion of the spool 4 fixed at the front end in the front-rear direction. The oscillating mechanism 6 includes a spool shaft 20
, A slider 22 that moves in the front-rear direction along the screw shaft 21, and an intermediate gear 23 fixed to the tip of the screw shaft 21. The screw shaft 21 is arranged in parallel with the spool shaft 20, and has a tip portion of the rotor 3.
Is rotatably supported by the housing unit 10 inside. A spiral groove 21a is formed on the outer periphery of the screw shaft 21, and a flat portion 20a is formed on the rear end. The rear end of the spool shaft 20 is fixed to the slider 22 so that it cannot move in the axial direction and cannot rotate. The slider 22 has a screw shaft 2
1, guide shafts 24a arranged in parallel above and below
It is guided in the axial direction by 24b. The intermediate gear 23 is fixed to the tip of the screw shaft 21 and meshes with the pinion gear 14.

[Rotor Configuration] As shown in FIGS. 1 and 4, the rotor 3 has a cylindrical portion 30 and a first rotor arm 31 and a second rotor arm 31 provided on the sides of the cylindrical portion 30 so as to face each other.
And a rotor arm 32. The cylindrical portion 30 and the rotor arms 31, 32 are integrally formed. Cylindrical part 3
The front wall 33 has a front wall 33 formed at the front, and a boss 33a is formed at the center of the front wall 33. This boss 33a
The front portion 14a of the pinion gear 14 and the spool shaft 20 pass through the through hole. Nut 3 on front side of front wall 33
4 and the nut 34 is connected to the pinion gear 1.
4 is screwed into the threaded portion. A bearing 35 for rotatably supporting the nut 34 with respect to the spool shaft 20 is disposed on an inner peripheral portion of the nut 34.

A reverse rotation preventing mechanism 37 for the rotor 3 is disposed inside the cylindrical portion 30. Reverse rotation prevention mechanism 37
Has a roller type one-way clutch (not shown) and an operation mechanism 38 for switching the one-way clutch between an operating state and a non-operating state. In the one-way clutch, an outer ring is fixed to the housing 10, and an inner ring is fixed to the pinion gear 14. The operation mechanism 38 has an operation lever 39 disposed at a lower portion of the housing unit 10. By swinging the operation lever 39, the one-way clutch is switched between two states. 3 cannot be reversed, and the rotor 3 can be reversed when not operating.

The front wall 33 of the rotor 3 is provided with a cylindrical thread biting prevention member 36 having an opening at the front. The line biting prevention member 36 has a stepped portion 36a at an outer peripheral end portion, and the fishing line wound around the spool 4
And is prevented from entering through the gap between the spool shaft 20 and the shaft shaft 20. As shown in FIGS. 1 to 3, a bail arm 40 is attached to the distal ends of the first and second rotor arms 31 and 32 so as to be freely opened and closed. The bail arm 40 includes first and second bail support members 41 a and 41 b slidably mounted on the inner peripheral sides of the distal ends of the first and second rotor arms 31 and 32, respectively, and the fishing line guide mechanism 4.
2 and a bale 46. The first bail support member 41a is connected to the first rotor arm 3 by two bearings 40a.
1 rotatably supported. Fishing line guide mechanism 42
Is for guiding the fishing line to the spool 4, and is attached to the tip of the first bail support member 41a. Here, the second bail support member 41b is made of, for example, a material having a higher specific gravity than other portions, and
a and functions as a balancer for eliminating imbalance during rotation caused by the fishing line guide mechanism 42.
Thereby, the entire rotor 3 including the bail arm 40 is
Dynamic balance is balanced.

By mounting the bail support members 41a and 41b on the inner peripheral side of the rotor arms 31 and 32, the radius of rotation of the bail arm 40 is reduced, so that the bail arm 40 is less likely to be in contact with the hand of the fishing rod. Therefore, the rod mounting part 1
2, the spool 4 and the fishing rod can be brought closer to each other, and the overall size can be reduced. Here, both bail support members 41a and 41b are swingable about one swing axis M. Then, the swing shaft M and the first rotor arm 3
A point at which the first bail support member mounting surface intersects is defined as a swing center C1, and a point at which the swing axis M intersects with the second bail support member mounting surface of the second rotor arm 32 is defined as a swing center C2. In this case, the swing center C2 is located ahead of the swing center C1. That is, the swing shaft M is inclined rearward with respect to an axis orthogonal to the spool shaft 20. The bail support members 41a and 41b are arranged such that their swing surfaces are orthogonal to the swing axis M.

The fishing line guide mechanism 42 includes a fixed shaft (not shown) having one end fixed to the first bail support member 41a, a fixed shaft cover 44 formed integrally with the fixed shaft, a substantially cylindrical line roller. 45. The bale 46 is made of a curved shape memory alloy wire. The shape memory alloy has a thermoelastic martensitic transformation, and the temperature at which the martensitic transformation occurs is room temperature (15 degrees Celsius).
(Degrees to 25 degrees) or less. Such superelastic alloys include Ti—Ni, Cu—Zn—Al, A
u-Cd system, Cu-Al-Ni, Cu-Au-Zn system,
Cu-Sn based, Cu-Zn-X (X = Si, Sn, A
l, Ga), In-Tl, Ni-Al
Preferably, it is any one alloy selected from the group consisting of base alloys. In particular, since a Ti—Ni-based alloy can be reduced in weight, it is possible to suppress the collapse of the dynamic balance caused by the veil. The bail 46 is fixed at both ends to the second bail support member 41 b and the fixed shaft cover 44, is disposed so as to be curved outward in the circumferential direction of the spool 4, and guides the fishing line to the line roller 45 via the fixed shaft cover 44. .

When an external force is applied to the veil 46 made of such a superelastic alloy, the veil 46 is temporarily deformed while the external force is applied. However, when the external force on the bail 46 is removed, the bail 46 returns to its original shape. For this reason, the veil is less likely to be deformed even when an external force acts. Moreover, since it has superelastic properties, it is not broken by an external force that normally acts during transportation or fishing. And rotor 3
, The change in the position of the center of gravity is reduced even if the bail 46 is deformed.
Changes in the overall dynamic balance, including zero, are reduced.

Here, the fixed shaft cover 44 and the bale 46
The distance R between the fishing line guide side contact portion 46b (FIG. 1) of the line roller side portion 46a (FIG. 2) and the fishing line contact portion on the spool 4 becomes shorter as going from the bail 46 to the line roller 45. The fixed shaft cover 44 and the bail 46 are configured. [Structure of Spool] The spool 4 is disposed between the first rotor arm 31 and the second rotor arm 32 of the rotor 3 and is fixed to the tip of the spool shaft 20. The spool 4 has a tapered cylindrical bobbin trunk 4a around which a fishing line is wound around the outer periphery, a rear flange 4b integrally formed with a larger diameter at the rear of the bobbin trunk 4a, and a front of the bobbin trunk 4a. And a large-diameter front flange portion 4c fixed to the portion. These parts are made of a lightweight metal such as an aluminum alloy and have a small thickness of about 1.2 to 1.5 mm. A disk-shaped front wall 51 is integrally formed at the tip of the bobbin trunk 4a, and a boss 52 fixed to the spool shaft 20 by a pin 53 is formed at the center thereof.

The bobbin trunk 4a extends to the outer peripheral side of the cylindrical portion 30 of the rotor 3, and has a trunk length longer than that of a normal spinning reel. The flange height of both flange portions 4b and 4c is lower than that of a normal spinning reel. As a result, the resistance at the time of releasing the line is reduced, so that even when a thin fishing line is wound around the bobbin trunk 4a, the fishing line is hardly twisted.

A ring-shaped groove 54 is formed in the inner peripheral portion of the rear flange 4b. A damping ring 55 is fitted into the groove 54. The vibration damping ring 55 is a ring made of synthetic resin having elasticity such as a Duracon and the like.
As shown in the figure, the shape of the arc is partially cut out.
The outer diameter of the vibration damping ring 55 is larger than the inner diameter D2 (FIG. 4) of the groove 54. Therefore, the vibration damping ring 55 is
When fitting, the both ends of the notch of the vibration damping ring 55 are gripped with slight force, and the diameter is set to the inner diameter D of the edge of the groove 54.
3. Fit it so that it shrinks to less than 3. This allows
The vibration damping ring 55 is formed by utilizing the elasticity of the synthetic resin to form the groove 54.
It will be attached to.

When such a vibration damping ring 55 made of synthetic resin is mounted on the thin spool 4, even if the fishing line hits the spool 4 when the fishing line is wound up, vibration caused by contact is suppressed by the vibration damping ring 55, and the spool 4 Is less likely to vibrate. Therefore, even when the fishing line comes into contact with the spool 4 when the fishing line is wound on the metal spool 4, noise such as a bell sound is less likely to be generated. Further, since the damping ring 55 is mounted on the inner peripheral surface of the spool 4, the damping ring 5
5 does not hinder the winding of the yarn, and the size of the entire spool can be suppressed.

[Operation and Operation of Reel] In this spinning reel, during casting, the bail 46 is tilted from the yarn winding side to the yarn releasing side. Accordingly, the first and second bail support members 41a and 41b rotate in the same direction about the swing axis M. At this time, the first and second bail support members 41a and 41b are connected to the first and second rotor arms 31,
32, and the swing shaft M is connected to the spool shaft 2
Since the first bail support member 41a and the line roller 45 at the tip of the first bail support member 41a are tilted backward with respect to 0, the first bail support member 41a moves further inward than the position in the yarn winding posture. For this reason, the fishing line unwound during casting is less likely to be entangled with the first bail support member 41a and the line roller 45.

At the time of winding the fishing line, the bail 46 is lowered to the line winding position. This is automatically performed by the action of a cam and a spring (not shown) when the handle 1 is rotated in the line winding direction. When the handle 1 is rotated in the line winding direction, this rotational force is transmitted to the pinion gear 14 via the handle shaft 12 and the master gear 13. The torque transmitted to the pinion gear 14 is transmitted to the rotor 3 via the front portion of the pinion gear 14, and the rotor 3 rotates in the line winding direction.

When the bale 46 falls down to the line winding position and the rotor 3 rotates, the fishing line that has come into contact with the rear portion (the contact portion on the fishing line guide side) of the bail 46 is guided to the fixed shaft cover 44 by the bail 46. The fishing line guided by the fixed shaft cover 44 is guided by a line roller 45, the direction of the fishing line is changed by the line roller 45, and the fishing line is wound around the outer periphery of the spool 4.

The distance R between the fishing line guide side contact portion of the fixed roller cover 44 and the line roller side portion 46a of the bail 46 and the fishing line contact portion on the spool 4 becomes shorter as going from the bail 46 to the line roller 45. Since the bail 46 and the fixed shaft cover 44 are configured, the distance from the spool 4 does not increase or decrease, and the fishing line is less likely to be caught. Therefore, the fishing line can be smoothly guided from the bail 46 to the line roller 45.

The fixed shaft cover 44 has a conical shape, and one end of the bail 46 is smoothly joined to the ridge 44b near the vertex 44a of the cone, so that the convex vertex 44a on which the fishing line is easily caught is formed. Can be concealed by the veil 46 to avoid it. Therefore, the fishing line is guided to the line roller 45 more smoothly.

[0031]

According to the present invention, since the veil is made of a shape memory alloy wire, it can return to its original shape when external force is removed. For this reason, the veil is less likely to be deformed even when an external force acts. Moreover, since the shape memory alloy has a superelastic property, it is not broken by an external force that normally acts during transportation or fishing.

[Brief description of the drawings]

FIG. 1 is a sectional side view of a spinning reel employing one embodiment of the present invention.

FIG. 2 is a front view thereof.

FIG. 3 is a plan sectional view thereof.

FIG. 4 is an enlarged sectional view of a spool and a rotor.

[Explanation of symbols]

 Reference Signs List 1 handle 2 reel body 3 rotor 4 spool 31, 32 first and second rotor arm 40 bail arm 41a, 41b first and second bail support member 42 fishing line guide mechanism 46 bale

Claims (5)

[Claims] 1. A bail arm attached to a pair of rotor arms of a spinning reel so as to be openable and closable, and a pair of arm support members respectively swingably attached to tips of the pair of rotor arms. A fishing line guide provided at the tip of one of the arm support members, and both ends connected to the fishing line guide and the tip of the other arm support member, each of which is formed of a curved shape memory alloy wire. Bale and spinning reel bale arm with 2. The bail arm of a spinning reel according to claim 1, wherein the shape memory alloy is a superelastic alloy having a thermoelastic martensitic transformation and a temperature at which the martensitic transformation occurs is equal to or lower than room temperature. 3. The superelastic alloy according to claim 1, wherein the superelastic alloy is Ti-Ni based, Cu-
Zn-Al system, Au-Cd system, Cu-Al-Ni, Cu
-Au-Zn system, Cu-Sn system, Cu-Zn-X (X =
Si, Sn, Al or Ga), In-Tl
The bail arm of a spinning reel according to claim 2, wherein the bail arm is any one alloy selected from the group consisting of a Ni-Al alloy and a Ni-Al alloy. 4. The spinning reel bail arm according to claim 3, wherein said superelastic alloy is a Ti—Ni alloy. 5. The bail arm of a spinning reel according to claim 1, wherein said bail arm has a shape and weight set so as to balance the dynamic balance of the rotor.