JP2003079288A - Whirl-stop structure of nut member of fishing reel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To save the inside space of a first material in a whirl-stop structure of a nut member for fixing the first material of a fishing reel to a second material. SOLUTION: This whirl-stop structure of the fishing reel is the structure for the nut member for fixing a rotor 3 of the fishing reel to a pinion gear 12. The hexagonal nut member 15 is screwed in front of the pinion gear 12. A retainer 16 for locking the nut member is installed to the nut member 15. A slip-off stopping member 17 for preventing the retainer 16 from separating from a front wall 3d is installed on the reverse surface of the installed surface. An engaging unit 18 formed by protruding a part of the front wall 3d is installed on the peripheral side of the retainer 16. The engaging unit 18 has a retainer engaging unit 18a for engaging the protruded part 16b of the retainer 16 and a slip-off stopping member engaging unit 18b for engaging the slip-off stopping member 17.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a nut member detent structure, and more particularly to a nut member detent structure for fishing reels.

[0002]

2. Description of the Related Art In fishing reels such as spinning reels and dual bearing reels, for example, a rotor or a handle is fastened to a rod-shaped pinion gear or a handle shaft by a nut member. Since such a nut member rotates together with the pinion gear and the handle shaft, it is easy to loosen due to inertial force or vibration acting on the rotor and the handle.

Therefore, in order to prevent the nut member from loosening, a retainer made of a thin metal plate is attached to the outer periphery of the nut member. This retainer is formed with a nut locking hole that allows the outer circumference of the nut member to be locked so that it cannot rotate, and a screw insertion hole through which a machine screw can be inserted. Here, a small screw is inserted into this screw insertion hole, and the retainer is non-rotatably fixed to the rotor by screwing the small screw into a screw fixing hole formed in a boss portion projecting inward from the front surface of the rotor,
The nut member is prevented from rotating.

[0004]

The above-mentioned conventional retainer is fixed to the rotor by screwing a small screw into a screw fixing hole formed in the boss portion inside the rotor. Therefore, it is necessary to secure a space for forming the boss inside the rotor. However, it is difficult to secure a space for installing the boss portion because another mechanism such as a braking mechanism and a reverse rotation preventing mechanism must be mounted in the space inside the rotor.

An object of the present invention is to save space inside the first member in a nut member rotation preventing structure for fastening the first member of the fishing reel to the second member.

[0006]

A nut member rotation preventing structure for a fishing reel according to a first aspect of the present invention is a nut screwed to a second member for fastening a first member of the fishing reel to the second member. A nut member rotation preventing structure for a fishing reel for preventing rotation of a member, comprising: an engaging portion which is mounted on an outer circumference of a nut member on a nut member mounting surface of a first member and non-rotatably engages with an outer circumference of the nut member; A retainer having a protrusion part of which protrudes outward, a retainer locking part which is disposed so as to protrude to the outer peripheral side of the retainer of the first member, and the protrusion part is locked in a non-rotatable manner, and the retainer first member mounting The retaining member that is mounted on the surface opposite to the surface and that prevents the retainer from separating from the first member, and the retaining member that is arranged so as to project to the outer peripheral side of the retaining member and is immovable in the separating direction. Stops locked to And a member locking portion.

In this structure for preventing the rotation of the nut member of the fishing reel, the retainer mounted on the outer periphery of the nut member cannot be rotated by locking the protrusion to the retainer locking part.
In addition, the retaining member is fixed to the first member immovably by locking the retaining member in the retaining member locking portion. Here, since the retainer locking portion and the retaining member locking portion are provided on the surface of the first member, the boss portion is formed inside the first member like the fixing using the machine screw in the conventional structure. You don't have to. Therefore, it is possible to save the space inside the first member.

The nut member rotation preventing structure according to the second aspect of the invention is
In the nut member rotation preventing structure according to the first aspect of the invention, the retaining member is a C-shaped member having an elastic force. In this case, by using a C-shaped member made of, for example, a metal spring member as the retaining member, the retaining member can be easily provided at low cost.

The nut member rotation preventing structure according to the third aspect of the invention is
In the nut member rotation preventing structure according to the first or second aspect of the present invention, the retaining member is mounted on the surface of the protrusion opposite to the first member mounting surface. In this case, since the retaining member is attached to the protruding portion of which the retainer protrudes radially outward, the retainer is easily retained.

The nut member rotation preventing structure according to the invention 4 is
In the nut member rotation preventing structure according to any one of the inventions 1 to 3, the retainer engaging portion and the retaining member engaging portion are integrally formed. In this case, the number of parts can be reduced by using the boss portion formed integrally or separately from the first member and protruding as the retainer locking portion and the retaining member locking portion.

The nut member rotation preventing structure according to the fifth aspect of the invention is
In the nut member rotation preventing structure according to any one of inventions 1 to 4, the fishing reel is a spinning reel, the first member is its rotor, and the second member is its pinion gear. In this case, it is possible to save space inside the rotor of the spinning reel. When the retainer and the retaining member have an axially symmetrical shape, the rotor rotation balance is less likely to be lost than in the conventional structure in which a small screw is used for fixing, and thus the rotor can easily rotate smoothly. .

The nut member rotation preventing structure according to the sixth aspect of the present invention is
In the nut member rotation preventing structure according to any one of the inventions 1 to 4, the fishing reel is a dual bearing reel, the first member is a handle, and the second member is a handle shaft. In this case, it is possible to save space inside the handle of the dual-bearing reel (between the handle and the reel body).

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION A spinning reel adopting an embodiment of the present invention is, for example, a lever brake type spinning reel as shown in FIG. 1, and a reel body 2 having a handle 1 and a brake lever 30 mounted thereon. The rotor 3 is rotatably supported on the front part of the reel body 2, and the spool 4 arranged on the front part of the rotor 3 for winding the fishing line.

As shown in FIG. 1, the reel unit 2 has a rod attachment leg portion 2a to be attached to a fishing rod and a reel body 2b integrally formed with the rod attachment leg portion 2a. A space for accommodating various mechanisms is formed inside the reel body 2b.

In the space of the reel body 2b, as shown in FIG. 2, a rotor drive mechanism 5 for rotating the rotor 3 is provided.
And a part of the lever brake mechanism 6 for braking the rotor 3, and an oscillating mechanism 7 for moving the spool 4 in the front-rear direction along the rotation axis X to wind the fishing line evenly on the spool 4. Is provided.

The rotor 3 is made of synthetic resin and is rotatably supported by the reel unit 2. As shown in FIG. 1, the rotor 3 includes a cylindrical portion 3a, and a first arm portion 3b and a second arm portion 3 that are provided laterally of the cylindrical portion 3a so as to face each other.
c and. A front wall 3d having a through hole 3e is formed in the center of the front portion of the cylindrical portion 3a. This through hole 3
The spool shaft 8 and the pinion gear 12 penetrate through e. The through hole 3e has a substantially rectangular shape, and the pinion gear 12 is non-rotatably locked in the through hole 3e. Between the tip of the first arm portion 3b and the tip of the second arm portion 3c,
A bail arm 9 is swingably provided.

The spool 4 is made of synthetic resin and is arranged between the first arm portion 3b and the second arm portion 3c of the rotor 3. The spool 4 is attached to the tip of a spool shaft 8 so as to be removable and non-rotatable. The spool shaft 8 can be moved in the front-rear direction by the oscillating mechanism 7.

The rotor drive mechanism 5 includes a face gear 11 that rotates together with a handle shaft 10 to which the handle 1 is fixed.
And the pinion gear 12 that meshes with the face gear 11.
And have. The handle shaft 10 is rotatably supported by the reel unit 2. The pinion gear 12 is formed in a tubular shape, and the front portion of the pinion gear 12 penetrates the through hole 3e of the rotor 3 and extends toward the spool 4 side.

A hexagonal nut member 15 (see FIG. 2) is screwed to the front portion of the pinion gear 12 for fastening the pinion gear 12 and the rotor 3, whereby the rotor 3 and the pinion are engaged. The gear 12 is connected so as not to rotate relative to it. A retainer 16 is attached to the nut member 15 to prevent loosening. As shown in FIGS. 3 to 5, a retaining member 17 for preventing the retainer 16 from separating from the front wall 3d is attached to the surface of the retainer 16 opposite to the front wall 3d attachment surface. . On the outer peripheral side of the retainer 16, an annular locking portion 18 formed by protruding a part of the front wall 3d forward is provided.

As shown in FIGS. 3 to 5, the retainer 16 has a substantially annular engaging portion 16a that non-rotatably engages with the outer periphery of the nut member 15 on the mounting surface of the nut member 15 of the front wall 3d.
And a plurality of protrusions 16b, a part of which protrudes radially outward from the engaging portion 16a. The engaging portion 16a is
Two hexagonal through-holes are formed at 12 positions, which are offset by 30 degrees so that the outer periphery of the nut member 15 is engaged. The protrusions 16 b are formed so as to protrude at three positions every 120 degrees in the outer peripheral radial direction of the engaging portion 16 a, and are locked by the locking portion 18. Here, since the shape of the retainer 16 is axisymmetric, the rotation balance of the rotor 3 can be improved.

The retaining member 17 is a C-shaped member having elastic force, and is, for example, a metal spring member. The retaining member 17 has an elastic force that spreads outward in the radial direction, and is retained by the retaining portion 18 while pressing the protruding portion 16b of the retainer 16.

The retaining portion 18 has a retainer retaining portion 18a formed by cutting out a part of the retaining portion 18 from the inner peripheral side to the outer peripheral side, and a groove-shaped retainer portion formed in an annular shape with a predetermined depth from the inner peripheral side. The retaining member locking portion 18b is provided. Retainer locking part 18
The protrusion 16b of the retainer 16 is locked to a, and the retaining member 17 is locked to the retaining member retaining portion 18b.

In such a nut member detent structure,
By locking the protrusion 16b of the retainer 16 to the retainer locking portion 18a, the retainer 16 is non-rotatably fixed, and by locking the retaining member 17 to the retaining member locking portion 18b, it is fixed immovably. Here, since the retainer locking portion 18a and the retaining member locking portion 18b are provided on the surface of the rotor 3, it is necessary to form the boss portion inside the rotor 3 as in the conventional fixing using machine screws. Therefore, the space inside the rotor 3 can be saved.

[Other Embodiments] (a) In the above-described embodiment, the whirl-stop structure is used for the nut member 15 for fastening the rotor, but the whirl-stop for other nuts such as the nut for fastening the handle of the dual-bearing reel. Can also be applied to.

As shown in FIG. 6, a dual bearing reel adopting another embodiment of the present invention has a reel body 101 and a handle 102 rotatably mounted on the reel body 101.
And a handle 102 provided inside the reel body 101.
And a spool 103 for winding a bobbin that rotates by the rotation of. A handle 102 is provided on the side of the reel body 101.
The handle shaft 110 is rotatably supported.

At the tip of the handle shaft 110, the handle 1
The crank arm 102a forming part 02 is non-rotatably mounted. A handle grip 102b is rotatably attached to the tip of the crank arm 102a. At the tip of the handle shaft 110, a chamfered portion that is parallel to the male screw portion (not shown) is formed.

A hexagonal nut member 115 for fixing the crank arm 102a to the handle shaft 110 is screwed onto the male screw portion of the handle shaft 110. A retainer 116 is attached to the nut member 115 to prevent the nut member 115 from loosening. A retaining member 117 for preventing the retainer 116 from separating from the crank arm 102a is attached to a surface of the retainer 116 opposite to the crank arm 102a attachment surface. A locking portion 118 that locks the retainer 116 and the retaining member 117 is provided on the outer peripheral side of the retainer 116.
Part of 2a is formed so as to project. Here, as in the above embodiment, the inside of the handle 102 (the handle 10
2 and the reel body 101) can be space-saving.

(B) In the above-described embodiment, the hexagonal nut is used to prevent rotation. However, the shape of the nut to which the rotation prevention structure of the present invention is applied is not limited to this, and a hexagon socket head nut is used. The present invention can be applied to a structure in which nuts of all shapes such as and nuts having parallel chamfers are prevented from rotating.

(C) In the above embodiment, the retainer engaging portion 18a and the retaining member engaging portion 18b are integrally formed, but they may be formed separately, or as the front wall 3d. It may be formed separately.

(D) In the above embodiment, the retaining member 17 is retained by the retaining member retaining portion 18b while pressing the protruding portion 16b of the retainer 16, but as shown in FIGS. Alternatively, the retainer 16 may be engaged with the retaining member engaging portion 18b while pressing the engaging portion 16a and the protruding portion 16b. Also, the retainer locking portion 18
“a” is formed at six places with a space between each other, and specifically, a set of three places arranged at intervals of 120 degrees is shifted by 45 degrees to be two.
The group is formed. Therefore, it is possible to dispose the nut members 15 at every 15 degrees and dispose at 24 places, and it is possible to prevent the retaining member locking portions 18b from interfering with each other.

[0031]

According to the present invention, in the nut member rotation preventing structure for fastening the first member of the fishing reel to the second member, the retainer mounted on the outer periphery of the nut member projects to the retainer engaging portion. It is fixed to the first member immovably by locking the part and immovably by locking the retaining member to the retaining member locking part. Here, since the retainer locking portion and the retaining member locking portion are provided on the surface of the first member, it is possible to save space inside the first member.

[Brief description of drawings]

FIG. 1 is a side sectional view of a spinning reel adopting an embodiment of the present invention.

FIG. 2 is an enlarged cross-sectional view of a main part of the spinning reel.

FIG. 3 is a partial front view of the rotor.

FIG. 4 is an enlarged front cross-sectional view of the rotor.

FIG. 5 is an enlarged side sectional view of the rotor.

FIG. 6 is a side view of a dual-bearing reel adopting another embodiment.

FIG. 7 is a diagram corresponding to FIG. 2 of another embodiment.

FIG. 8 is a view corresponding to FIG. 3 of another embodiment.

FIG. 9 is a view corresponding to FIG. 4 of another embodiment.

[Explanation of symbols]

3 rotor 12 pinion gear 15,115 Nut member 16,116 retainer 16a engaging part 16b protrusion 17, 117 retaining member 18, 118 Locking part 18a Retainer locking part 18b retaining member locking part 102 handle 110 handle shaft

Claims (6)

[Claims] 1. A nut member rotation preventing structure for a fishing reel, wherein a nut member screwed to the second member for fastening the first member of the fishing reel to the second member is prevented from rotating. An engaging portion that is mounted on the outer periphery of the nut member on the nut member mounting surface of the first member and that engages with the outer periphery of the nut member in a non-rotatable manner, and a protruding portion that partially protrudes outward in the radial direction. A retainer, a retainer locking portion that is disposed so as to project to the outer peripheral side of the retainer of the first member, and the protruding portion is non-rotatably locked, and a surface of the retainer opposite to the first member mounting surface. A retaining member that is mounted and that prevents the retainer from separating from the first member; and a retainer member that is disposed so as to project to the outer peripheral side of the retainer member of the first member and that does not move in the separating direction. Stops locked to A structure for preventing rotation of a nut member of a fishing reel, which includes a female member locking portion. 2. The nut reel detent structure for a fishing reel according to claim 1, wherein the retaining member is a C-shaped member having an elastic force. 3. The retaining member is the first portion of the protrusion.
The nut member rotation preventing structure for a fishing reel according to claim 1 or 2, which is mounted on a surface opposite to the member mounting surface. 4. The fishing reel nut member rotation preventing structure according to claim 1, wherein the retainer locking portion and the retaining member locking portion are integrally formed. 5. The fishing reel according to claim 1, wherein the fishing reel is a spinning reel, the first member is a rotor thereof, and the second member is a pinion gear thereof. The nut member rotation stop structure. 6. The fishing reel is a dual bearing reel,
The nut member rotation preventing structure for a fishing reel according to claim 1, wherein the first member is a handle and the second member is a handle shaft.