JP2002045093A - Spool of spinning reel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To lighten a spool and to reduce the deformation thereof in the spool of a spinning reel. SOLUTION: This spool 4 has a spool body 1 having a cylindrical line-wound cylinder part 1a on the periphery of which a fishline is wound, a skirt part 7b integrally formed at the rear end part of the line-wound part 1a and having a large-diameter cylindrical shape, and an inner cylinder member 7c attached to the inner periphery side of the line-wound cylinder part 7a, a large-diameter front flange part 8 attached to the front end part of the line-wound cylinder part 7a, and a front flange-fixing member 9 for fixing the front flange part 8 to the spool body 7. The line-wound cylinder part 7a and the skirt part 7b are a large and small double cylindrical member obtained by integrally forming a thin plate of an aluminum alloy by a press working. The inner flange part 7e formed by the press working so as to be bent inside so as to keep contact with the front end part of the inner cylinder member 7c.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spool,
The present invention relates to a spinning reel spool that can move back and forth with respect to a reel body.

[0002]

2. Description of the Related Art A spinning reel generally includes a reel body rotatably supporting a handle, a rotor, and a spool. The spool of the spinning reel is movable back and forth with respect to the reel body, and a bobbin trunk on which the fishing line is wound, and a front flange portion disposed at the front end of the bobbin trunk and having an outer diameter larger than the outer diameter of the bobbin trunk. And a tubular skirt provided behind the bobbin trunk. The front flange portion is fixed to the bobbin trunk by a front flange fixing member.

[0003] Among such spools, those in which the bobbin trunk is formed of a thin metal plate such as an aluminum alloy in order to reduce the weight of the entire spool are known.

[0004]

In the spool formed of the above-mentioned conventional metal thin plate, the strength of the bobbin trunk is liable to decrease since the bobbin trunk is formed thin. Therefore, in order to increase the strength of the bobbin trunk, it is conceivable to attach an inner cylindrical member made of synthetic resin to the inner peripheral side of the bobbin trunk. In this case, by attaching the inner cylinder member inside the bobbin trunk, it is possible to maintain high strength while reducing the weight. However, in the case of a synthetic resin inner cylinder member, if a strong pressing force is applied to the bobbin trunk by, for example, bobbin winding, the bobbin bobbin may be deformed together with the bobbin bobbin.

When the bobbin trunk is deformed, a gap is formed between the front flange and the front flange that is difficult to deform in a configuration in which the front flange is fixed to the bobbin trunk, and the fishing line may bite into the gap.

An object of the present invention is to reduce the weight of a spool of a spinning reel and suppress deformation thereof.

[0007]

A spinning reel spool according to a first aspect of the present invention is a spinning reel spool that is movable back and forth with respect to the reel body, and has a cylindrical shape formed of a thin metal plate around which a fishing line is wound. A bobbin trunk portion having an inner flange portion formed integrally with the cylindrical portion and having a front end extending toward the inner peripheral side, a front flange portion provided at a front end portion of the cylindrical portion, and a rear end portion of the cylindrical portion And an inner cylinder member attached to the inner peripheral side of the cylindrical part.

In such a spool, the bobbin trunk has a tubular portion made of a thin metal plate, and an inner flange portion whose front end extends inward. In this case, the strength of the bobbin trunk can be maintained high because the inner flange portion extending toward the inner peripheral side is formed at the front end of the tubular portion. Moreover, the inner peripheral portion of the tubular portion is reinforced by the inner tubular member. Therefore, even if a strong pressing force acts on the bobbin trunk,
The deformation of the spool can be suppressed.

A spool according to a second aspect of the present invention is the spool of the first aspect, wherein the skirt portion is formed integrally with the bobbin trunk by pressing a thin metal plate. In this case, the weight of the entire spool can be reduced.

A spool according to a third aspect of the present invention is the spool according to the first or second aspect, wherein the inner cylindrical member is made of a synthetic resin. In this case, the entire spool can be formed at low cost while reducing the weight.

A spool according to a fourth aspect of the present invention is the spool according to any of the first to third aspects, wherein the inner flange portion has an engagement portion, and the inner cylinder member is engaged with the engagement portion to prevent rotation with the inner flange portion. It has an engaging portion. In this case, for example, a through hole is formed as an engaging portion of the inner flange portion, a projection is formed as a portion to be engaged of the inner cylinder member, and by engaging these, positioning and detent of the inner cylinder member are prevented. It can be carried out.

According to a fifth aspect of the present invention, in the spool of the first to fourth aspects, the front flange portion is fixedly fastened to the inner flange portion and the inner cylinder member. In this case, the number of parts of the fixing member such as a bolt can be reduced.

According to a sixth aspect of the present invention, there is provided the spool according to any of the first to fourth aspects, wherein the inner cylindrical member has a cylindrical external thread portion projecting forward, and the front flange portion is a first female thread portion screwed to the male thread portion. And the first female screw portion is screwed into the male screw portion to fix the bobbin trunk to the inner cylinder member. In this case, the bobbin trunk can be easily fixed to the inner cylinder member without using another member simply by screwing the first female thread portion of the front flange portion into the male thread portion formed on the inner cylinder member.

According to a seventh aspect of the present invention, there is provided the spool according to the sixth aspect, further comprising a flange fixing member having a second female screw portion screwed to the male screw portion and disposed in front of the front flange portion. The front flange portion is prevented from rotating by being screwed into the male screw portion. In this case, by screwing the second female screw portion of the flange fixing member to the male screw portion, the fixing of the flange fixing member and the prevention of loosening of the front flange portion can be performed simultaneously.

According to an eighth aspect of the present invention, in the spool according to any one of the first to seventh aspects, the front flange portion has an annular groove formed facing the inner flange portion, and the inner flange portion is fitted into the annular groove. Have been. In this case, since the radial movement of the inner flange portion is restricted by fitting the inner flange portion into the annular groove, the strength of the bobbin trunk portion is further increased.

A spool according to a ninth aspect of the present invention is the spool according to the first aspect, wherein an annular projection protruding forward from other portions is formed at a portion where the inner flange portion of the inner cylinder member is disposed, and the annular projection is formed. Is fitted in the annular groove. In this case, since the inner cylindrical member is also fitted into the annular groove and reinforced, the strength of the front end portion of the bobbin trunk is further increased, so that the bobbin is less likely to be deformed and less likely to be bitten.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A spinning reel employing an embodiment of the present invention comprises a reel body 2 for rotatably supporting a handle 1, a rotor 3, and a spool 4, as shown in FIG. I have. The rotor 3 is rotatably supported at the front of the reel body 2. The spool 4 winds the fishing line around the outer peripheral surface, and is disposed at the front of the rotor 3 so as to be movable back and forth.

The reel body 2 has a reel body 2a and a rod mounting leg 2b extending diagonally upward and forward from the reel body 2a. The reel body 2a has a space inside as shown in FIG. 2, in which a rotor drive mechanism 5 for rotating the rotor 3 in conjunction with the rotation of the handle 1, and a spool 4 fore and aft. An oscillating mechanism 6 for moving and uniformly winding the fishing line is provided.

The rotor drive mechanism 5 includes a face gear 11 which rotates together with a handle shaft 10 to which the handle 1 is fixed.
And a pinion gear 12 meshing with the face gear 11
And The pinion gear 12 is formed in a tubular shape, and a front portion thereof penetrates a center portion of the rotor 3 and is fixed to the rotor 3 by a nut. Pinion gear 12
The axially intermediate portion and the rear end portion are rotatably supported on the reel body 2 via bearings.

The oscillating mechanism 6 has a spool shaft 15 connected to the center of the spool 4 via a drag mechanism.
Is moved in the front-back direction to move the spool 4 in the same direction. The oscillating mechanism 6 includes a screw shaft 21 disposed in parallel below the spool shaft 15, 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. have.
The rear end of the spool shaft 15 is fixed to the slider 22 so as not to rotate. The intermediate gear 23 meshes with the pinion gear 12.

The rotor 3, as shown in FIG.
0, and first and second rotor arms 31 and 32 provided opposite to each other on the side of the cylindrical portion 30. The cylindrical portion 30 and the rotor arms 31, 32 are made of, for example, an aluminum alloy and are integrally formed.

The first rotor arm 31 extends outwardly from the cylindrical portion 30 so as to be convexly curved and extend forward, and a portion connected to the cylindrical portion 30 extends and curves in the circumferential direction of the cylindrical portion 30.
A first bail support member 40 is swingably mounted on the outer peripheral side of the distal end of the first rotor arm 31. A line roller 41 for guiding the fishing line to the spool 4 is attached to the tip of the first bail support member 40.

The second rotor arm 32 extends outwardly from the cylindrical portion 30 so as to be convexly curved. The second rotor arm 32 bifurcates from the distal end toward the connection portion with the cylindrical portion 30, and is connected to the cylindrical portion 30 at two locations spaced apart in the circumferential direction. A second bail support member 42 is swingably mounted on the inner peripheral side of the distal end of the second rotor arm 32.

Line roller 41 and second bail support member 4
A veil 4 having a shape obtained by bending a wire into a substantially U shape between the veil 4 and the veil 4.
3 is fixed. The first and second bail support members 40 and 42, the line roller 41 and the bail 43 constitute a bail arm 44 for guiding the fishing line to the spool 4. The bail arm 44 is swingable between a yarn guiding posture shown in FIG. 2 and a yarn releasing posture inverted from the yarn guiding posture.

The spool 4 is arranged between the first rotor arm 31 and the second rotor arm 32 of the rotor 3 and is mounted on the tip of the spool shaft 15 via a drag mechanism. The spool 4 is, as shown in FIG.
It has a spool body 7, a large-diameter front flange portion 8 attached to the front end of the bobbin trunk 7a, and a front flange fixing member 9 for fixing the front flange portion 8 to the spool body 7. The spool body 7 has a cylindrical bobbin trunk 7a around which a fishing line is wound around an outer periphery, a large-diameter cylindrical skirt portion 7b integrally formed at a rear end of the bobbin trunk 7a, and an inner periphery of the bobbin trunk 7a. And an inner cylindrical member 7c attached to the side.

The bobbin trunk 7a and the skirt 7b are large and small two-stage tubular members obtained by integrally forming a thin plate of an aluminum alloy by press working. The bobbin trunk 7a is
It has a cylindrical tubular portion 7d around which a fishing line is wound around the outer periphery, and an inner flange portion 7e integrally formed at the front end of the tubular portion 7d. A through-hole 7f (see FIGS. 1 and 3) for accommodating a knot at the start of winding of the fishing line is formed in the tubular portion 7d at one place near the skirt portion 7b.

As shown in FIGS. 1 and 3, a stepped recess 7g is formed in the skirt portion 7b, and a fishing line locking portion 7 for locking the tip of the fishing line in the recess 7g.
0 is attached. A gap is formed between the concave portion 7g and the fishing line engaging portion 70 for holding the fishing line.
As shown in FIG. 3, the fishing line locking portion 70 is a substantially T-shaped member that can be elastically deformed and has a side surface cross section, and a push nut 80 mounted on a projection formed at the rear end of the inner cylindrical member 7c.
It is fixed by.

The inner cylindrical member 7c is a cylindrical member made of an aluminum alloy to which a drag mechanism is attached, which is attached to the inner peripheral side of the bobbin trunk 7a, and is formed by die casting. The rear end portion of the inner cylinder member 7c has a fishing line locking portion 70 attached thereto and is fixed to the skirt portion 7b with screws. At the front end of the inner cylinder member 7c, a plurality of engaged portions 7j are formed at which engagement portions 7i formed on an inner flange portion 7e described later are engaged. Also, the inner cylinder member 7c
On the inner peripheral side, a female screw portion 7h with which a male screw portion 9a formed on a front flange fixing member 9 described later is screwed is formed.

The inner flange portion 7e is pressed so as to be bent inward so as to be in contact with the front end of the inner cylindrical member 7c. The inner flange portion 7e is sandwiched between the front end of the inner cylinder member 7c and the front flange portion 8. The inner flange portion 7e is provided with an engaged portion 7 formed on the inner cylinder member 7c.
j that bends further inward to engage with j
Are formed at a plurality of locations. By engaging the engaging portion 7i with the engaged portion 7j, the positioning of the inner flange portion 7e with respect to the inner cylinder member 7c and the prevention of rotation can be performed.

The front flange portion 8 is an annular member made of an aluminum alloy, and is subjected to curling so as to bend backward. The front flange portion 8 is fixed by screwing the front flange fixing member 9 to the inner cylindrical member 7c.
It is sandwiched between the front end of the inner flange portion 7e and the front flange fixing member 9.

The front flange fixing member 9 is a cylindrical member formed so that the front is inclined, and has a male screw portion 9a formed on the rear outer periphery. The front flange fixing member 9 is screwed and fixed to the inner cylinder member 7c by screwing the male screw part 9a to the female screw part 7h of the inner cylinder member 7c.

In such a spool 4, the bobbin trunk 7a
Since the inner flange portion 7e, in which the front end of the bobbin trunk 7a is bent inward, is integrally formed, the strength of the bobbin trunk 7a can be maintained high.

[Other Embodiments] (a) In the above embodiment, the inner cylinder member 7c is made of an aluminum alloy. However, the invention is not limited to this. As shown in FIG. May be. Further, the front flange portion 8 is made of an aluminum alloy, but may be made of a stainless alloy or a ceramic such as zirconia.

(B) In the above embodiment, the front flange fixing member 9 is attached to the front end of the bobbin trunk 7a such that the front flange 8 is sandwiched between the inner cylindrical member 7c and the front end of the bobbin trunk 7a. However, as shown in FIG. 4, it may be screwed and fixed to the front end of the inner cylinder member 7c with bolts 81 and 82. By fixing the front flange portion 8, the front flange fixing member 9 and the inner flange portion 7e together to the inner cylinder member 7c, the number of screws can be reduced as compared with the case where each is fixed separately.

(C) In the above embodiment, the fishing line locking portion 7
5 is fixed by a push nut 80 attached to a projection formed at the rear end of the inner cylindrical member 7c.
As shown in FIG.

(D) In the above embodiment, the spool of the front drag type spinning reel has been described as an example.
The present invention can be applied to a spool of a rear drag type or lever brake type spinning reel.

As shown in FIG. 6, a rear drag type spinning reel according to another embodiment of the present invention is
And a rotor body 102 rotatably supporting the rotor 1
03 and a spool 104. Rotor 103
Is rotatably supported at the front of the reel body 102. The spool 104 winds the fishing line around the outer peripheral surface, and is disposed at the front of the rotor 103 so as to be movable back and forth.

The reel body 102 is a reel body 102
a, and a rod mounting leg 102b extending diagonally upward and forward from the reel body 102a. Reel body 102a
Has a space therein, in which a rotor drive mechanism 105 for rotating the rotor 103 in conjunction with the rotation of the handle 101 and a spool 104 moved back and forth to uniformly wind the fishing line And an oscillating mechanism 106 are provided. Further, a rear drag mechanism 150 is provided behind the reel body 2.

The rotor drive mechanism 105 includes a handle 101
Has a face gear 111 that rotates together with the handle shaft 110 to which is fixed, and a pinion gear 112 that meshes with the face gear 111. Pinion gear 112
Is formed in a cylindrical shape, and a front portion thereof penetrates a center portion of the rotor 103 and is fixed to the rotor 103 by a nut. The pinion gear 112 has an axial intermediate portion and a rear end portion rotatably supported by the reel body 102 via bearings.

The oscillating mechanism 106 has a spool shaft 115 connected to the end of the spool 104 and extending forward and backward.
Is moved in the front-rear direction to move the spool 104 in the same direction. Oscillating mechanism 106
Is a reduction gear type, and has a gear member 121 that rotates in conjunction with the face gear 111 and a slider 122 that reciprocates in the spool axis direction in conjunction with the gear member 121. The slider 122 is rotatable with respect to the spool shaft 115 and cannot move in the axial direction. Slider 1
Reference numeral 22 denotes a spool shaft 11 by the reel body 102a.
5 is guided to move in parallel.

The rear drag mechanism 150 is connected to the spool shaft 15
The spool 104 is non-rotatably connected to the rear end of the spool 104 so as to be freely movable in the axial direction.

The rotor 103 has a cylindrical portion 30 and a cylindrical portion 1.
The first and second rotor arms 131 and 132 are provided on the sides of the first arm 30 so as to face each other. Cylindrical part 13
0 and both rotor arms 131 and 132 are made of, for example, an aluminum alloy and are integrally formed.

The first rotor arm 131 has a cylindrical portion 130.
From the cylindrical portion 13
The portion connected to the cylinder 0 extends in the circumferential direction of the cylindrical portion 30 and is curved. A first bail support member 140 is swingably mounted on the outer peripheral side of the distal end of the first rotor arm 131.
A line roller (not shown) for guiding the fishing line to the spool 104 is attached to the tip of the first bail support member 140.

The second rotor arm 132 has a cylindrical portion 130.
And extends outwardly convexly. The second rotor arm 132 bifurcates from the distal end toward the connection portion with the cylindrical portion 130, and is connected to the cylindrical portion 130 at two locations spaced apart in the circumferential direction. A second bail support member 142 is provided on the inner peripheral side of the distal end of the second rotor arm 132.
Are swingably mounted.

Line roller and second bail support member 142
And a veil 14 having a shape obtained by bending a wire into a substantially U shape.
3 is fixed. The bail arm 1 guides the fishing line to the spool 104 by the first and second bail support members 140 and 142, the line roller and the bail 143.
44 are configured. The bail arm 144 is swingable between a yarn guiding posture shown in FIG. 1 and a yarn releasing posture inverted from the posture.

The spool 104 is disposed between the first rotor arm 131 and the second rotor arm 132 of the rotor 103, is removably mounted on the spool shaft 115 by a mounting / dismounting mechanism 160, and cannot be rotated by a pin 116. Locked. The pin 116 is mounted on the spool shaft 115 along the radial direction, and is locked in a locking groove 104 a formed in the spool 104.

As shown in an enlarged view in FIG. 7, the spool 104 holds the spool body 107, a large-diameter front flange 108 attached to the front end of the bobbin trunk 107a, and the front flange 108. And a front flange fixing member 109. The spool body 107 has a cylindrical bobbin trunk 107a around which the fishing line is wound around the outer periphery, a large-diameter cylindrical skirt portion 107b integrally formed at the rear end of the bobbin trunk 107a, and an inner peripheral side of the bobbin trunk 107a. And an inner cylinder member 107c attached.

The bobbin trunk 107a and the skirt 107b
Is a two-stage large and small cylindrical member obtained by integrally forming a thin plate of an aluminum alloy by press working. These outer peripheral surfaces are cut by a lathe in order to produce a luxurious appearance, and the outer peripheral surface of the front end portion where the front flange portion 108 is mounted has a clearance with the front flange portion 108. In order to prevent the occurrence of pitting, cutting with higher precision is further performed.

The bobbin trunk 107a has a cylindrical tubular portion 107d around which the fishing line is wound around the outer periphery, and an inner flange portion 107e integrally formed at the front end of the tubular portion 107d. The inner flange portion 107e is pressed so as to be bent inward so as to be in contact with the front end portion of the inner cylinder member 107c. The inner flange portion 107e is
7c is sandwiched between the front end portion and the front flange portion 108. Further, an engagement notch 107i for preventing the bobbin trunk 107a from rotating with respect to the inner cylinder member 107c is provided at one location on the inner peripheral portion of the inner flange 107e.

The skirt 107b has a stepped recess 1
07g is formed, and a fishing line locking portion 170 for locking the tip portion of the fishing line is mounted in the concave portion 107g. Between the concave portion 107g and the fishing line locking portion 170,
A gap for holding the fishing line is created. In addition,
The fishing line locking portion 170 is a substantially T-shaped member having a side cross section that is elastically deformable, and is fixed by a push nut 180 mounted on a projection formed at the rear end of the inner cylindrical member 107c.

The inner cylindrical member 107c is a cylindrical member made of synthetic resin, which is attached to the inner peripheral side of the bobbin trunk 107a and to which the attaching / detaching mechanism 160 is attached at the front end. Inner cylinder member 107c
Is non-rotatably mounted on a spool shaft 115 by a pin 116. A fishing line locking portion 170 is attached to a rear end of the inner cylinder member 107c. On the outer peripheral side of the front end portion of the inner cylindrical member 7c, an annular protrusion 107 protruding from other portions is provided.
f is formed, and at the front end of the annular projection 107f,
An engaged projection 107j is formed at one location with which the engagement notch 107i formed on the inner flange 7e engages.
A tube having a male screw portion 107h on the inner peripheral side of the front end portion of the inner tube member 7c, to which first and second female screw portions 108a and 109a formed on a front flange portion 108 and a front flange fixing member 109 described later are screwed. A projection 107k is formed.

The front flange portion 108 is an annular member made of a synthetic resin whose surface is hard-plated, and is formed so as to be slightly inclined forward and to bend forward at the outer peripheral end.
A first female screw portion 108 is provided on an inner peripheral portion of the front flange portion 108.
a is formed. The inner flange portion 1 is provided on the rear surface of the front flange portion 108 facing the inner flange portion 107e.
07e and an annular groove 108b into which the annular projection 107f of the inner cylindrical member 107c is fitted.

The front flange 108 is provided with the first female screw 10
8a is fixed to the inner cylinder member 107c by screwing it into the male screw portion 107h of the inner cylinder member 107c. At this time, the inner flange 107e and the annular projection 107f are fitted into the annular groove 108b, and the inner flange 107e is sandwiched between the inner cylinder 107c. As a result, the bobbin trunk portion 107a attached to the inner cylinder member 107c is fixed in a state in which it is prevented from rotating by the inner cylinder member 107c.

The front flange fixing member 109 is a flange-like member formed so that the front surface is inclined backward.
A second female screw portion 109a is formed in the rear portion on the inner peripheral side. By screwing the second female screw portion 109a to the male screw portion 107h of the inner cylinder member 107c, the front flange fixing member 109 is screwed and fixed to the inner cylinder member 107c. Thus, a double nut is formed between the front flange fixing member 109 and the front flange portion 108, so that the fixing of the front flange fixing member 109 and the prevention of loosening of the front flange portion 108 can be performed simultaneously.

The attachment / detachment mechanism 160 has a spring member 161 mounted inside the cylindrical projection 107k, and an attachment / detachment button 162 for expanding / contracting the spring member 161. The spring member 161 has a locking portion 161a that is locked in a locking groove 115a (FIG. 6) formed at the tip of the spool shaft 115. The attachment / detachment button 162 is movable in the axial direction, and is urged by a spring member 161 in the protruding direction. In addition, it is locked by the front flange fixing member 109 so as not to protrude in the protruding direction. The spool 104 can be detached from the spool shaft 115 by opening the engaging portion 161a and removing the engaging portion 161a from the engaging groove 115a by pressing the detachable button 162.

Also in such a spool 104, the strength of the bobbin trunk 107a is maintained at a high level because the inner flange portion 107e in which the front end of the bobbin trunk 107a is bent inward is formed integrally with the bobbin trunk 107a. be able to. Moreover, the inner flange portion 107e is
Since the inner flange 107e is fitted into the annular groove 108b formed on the inner surface 8, the inner flange 107e is less likely to be deformed, and the strength can be maintained higher. In addition, the portion of the bobbin trunk 107a where the strength has been increased, where the front flange portion 108 is mounted, has an outer peripheral surface that has been made more precise by cutting, so that the thread is less likely to bite.

[0057]

According to the present invention, by increasing the strength of the bobbin trunk in the spinning reel spool,
The deformation can be suppressed while reducing the weight of the spool.

[Brief description of the drawings]

FIG. 1 is a right side view of a spinning reel according to an embodiment of the present invention.

FIG. 2 is a left side sectional view of the spinning reel.

FIG. 3 is an enlarged sectional view of a spool of the spinning reel.

FIG. 4 is a diagram corresponding to FIG. 3 of another embodiment.

FIG. 5 is a view corresponding to FIG. 3 of still another embodiment.

FIG. 6 is a view corresponding to FIG. 2 of still another embodiment.

FIG. 7 is a view corresponding to FIG. 3 of the embodiment of FIG. 6;

[Explanation of symbols]

 2, 102 Reel body 4, 104 Spool 7a, 107a Winding body 7b, 107b Skirt 7c, 107c Inner cylinder 7d, 107d Cylindrical 7e, 107e Inner flange 7i Engagement 7j Engagement 8,108 Front flange 9, 109 Front flange fixing member 107f Annular projection 107h Male thread 107i Engagement notch 107j Engagement projection 108a First female thread 108b Annular groove 109a Second female thread

Claims (9)

[Claims] 1. A spool of a spinning reel which is movable back and forth with respect to a reel body, wherein a fishing line is wound around an outer periphery, and a cylindrical portion formed of a thin metal plate is integrally formed with the cylindrical portion, and a front end portion is formed inside. A bobbin trunk having a circumferentially extending inner flange portion; a front flange portion provided at a front end of the tubular portion; a skirt portion provided at a rear end of the tubular portion; A spool of a spinning reel comprising: an inner cylinder member attached to an inner peripheral side of the section. 2. The spinning reel spool according to claim 1, wherein the skirt is formed integrally with the bobbin trunk by pressing the thin metal plate. 3. The spinning reel spool according to claim 1, wherein the inner cylinder member is made of a synthetic resin. 4. The inner flange portion has an engagement portion, and the inner cylinder member has an engaged portion which engages with the engagement portion and prevents rotation with the inner flange portion. The spinning reel spool according to claim 1. 5. The apparatus according to claim 1, wherein said front flange portion is fixedly fastened to said inner flange portion and said inner cylinder member.
The spinning reel spool according to any one of the above. 6. The inner cylinder member has a cylindrical male screw part projecting forward, the front flange part has a first female screw part screwed to the male screw part, and the first female screw part The spool of a spinning reel according to any one of claims 1 to 4, wherein the bobbin trunk is fixed to the inner cylindrical member by being screwed into the male thread. 7. The apparatus according to claim 1, further comprising a flange fixing member having a second female screw portion to be screwed to said male screw portion and disposed in front of said front flange portion, wherein said second female screw portion is screwed to said male screw portion. The spinning reel spool according to claim 6, wherein the front flange portion is prevented from rotating by means of a spool. 8. The apparatus according to claim 1, wherein the front flange has an annular groove formed to face the inner flange, and the inner flange is fitted in the annular groove. The spool of the spinning reel described in 1. 9. A portion of the inner cylinder member where the inner flange portion is disposed, has an annular projection projecting forward from other portions, and the annular projection is fitted into the annular groove. The spinning reel spool according to claim 8, wherein