JP4365962B2 - Double-bearing reel spool - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a spool, and more particularly to a spool of a dual-bearing reel that is rotatably supported with respect to a reel body and is attached to a spool shaft.
[0002]
[Prior art]
In general, a dual-bearing reel includes a reel body having a handle and a spool rotatably mounted on the reel body. The spool includes a bobbin trunk around which the fishing line is wound, flanges provided at both ends of the bobbin trunk, and a shaft mounting portion provided on the inner peripheral side of the bobbin trunk. The bobbin trunk is cylindrical, and the flange has a larger diameter than the outer diameter of the bobbin trunk. The shaft attachment portion is integrally formed with, for example, the bobbin trunk, and the inner peripheral side is attached to the spool shaft.
[0003]
In such a spool, in order to improve the casting force, it is desired to reduce the weight of the spool and reduce the inertia. Therefore, in order to reduce the weight of the spool, for example, one in which a through-hole penetrating a cylindrical bobbin trunk is formed is known.
[0004]
[Problems to be solved by the invention]
In a spool having a conventional through hole, a through hole is provided in a cylindrical bobbin trunk. However, even if the through-hole is formed in the tubular bobbin trunk having a relatively thin thickness, the portion where the bobbin trunk is reduced in weight is only a small part. Therefore, it is difficult to reduce the weight of the spool as a whole.
[0005]
An object of the present invention is to effectively reduce the weight of a spool of a dual-bearing reel.
[0006]
[Means for Solving the Problems]
A spool of a dual-bearing reel according to a first aspect of the present invention is a spool of a dual-bearing reel that is rotatably supported with respect to a reel body and is mounted on a spool shaft, and includes a bobbin trunk having a space inside, and an inner circumference. A shaft mounting portion that is attached to the spool shaft and is connected so that the outer periphery can form a space in the bobbin trunk portion, and flange portions provided at both ends of the bobbin trunk portion. Further, a meat stealing portion that reaches the inside of the shaft attachment portion from the outer periphery of the bobbin trunk is formed. Then, the axial length of the meat stealing portion of the bobbin trunk portion is larger than the axial length of the portion of the shaft mounting portion having the meat stealing portion so that the meat stealing portion penetrates in the axial direction of the spool shaft at the shaft mounting portion. long.
[0007]
In such a spool, since the meat stealing portion is formed in the shaft mounting portion that occupies most of the mass of the spool, the weight of the spool can be effectively reduced. In addition, since the meat stealing portion penetrates the shaft mounting portion in the axial direction of the spool shaft, it is easy to form the meat stealing portion and the shaft mounting portion is further reduced in weight to further reduce the weight of the spool. Can do.
[0008]
The spool according to a second aspect of the present invention is the spool of the first aspect, wherein the meat stealing portions are provided at a plurality of locations at predetermined intervals in the circumferential direction of the bobbin trunk.
[0009]
In this case, since the plurality of meat stealing portions are formed in the circumferential direction, a large number of meat stealing portions can be arranged. Therefore, since the shaft mounting portion is further reduced in weight, the spool can be further reduced in weight .
[0010]
Spool according to inventions 3, in the first or second aspect of the spool, the shape of the thinned-out part is circular.
[0011]
In this case, a circular meat stealing part can be easily formed using, for example, a cutting drill or the like.
[0012]
The spool according to a fourth aspect of the invention is the spool according to the third aspect, wherein the bottom portion of the meat stealing portion is formed in a tapered shape whose diameter increases toward the outer side in the radial direction.
[0013]
The spool which concerns on invention 5 is a spool of invention 1 or 2 WHEREIN: The shape of the meat stealing part is non-circular.
[0014]
In this case, for example, the meat stealer can be formed into a non-circular shape by shifting the meat stealer with respect to the spool shaft .
[0015]
The spool according to the invention 6 is the spool according to any one of the inventions 1 to 5 , wherein the minimum outer diameter of the bobbin trunk is in the range of 40% to 80% of the maximum outer diameter of the flange part. Since the groove is shallow, the effect of reducing inertia by stealing meat becomes remarkable. Further, even when a thin fishing line is wound around the spool, it is difficult to cause curling. In the case of such a shallow groove spool, since the outer diameter of the bobbin trunk is large, it is desirable to provide a space inside in order to reduce the weight.
[0016]
In the spool according to the invention 7 , in any one of the spools of the inventions 1 to 6 , the maximum outer diameter of the flange portion is in a range of 30 mm to 60 mm.
[0017]
In this case, the dimensions are easy to use for casting such as summing.
[0018]
DETAILED DESCRIPTION OF THE INVENTION
A dual-bearing reel employing an embodiment of the present invention is a low profile type reel for bait casting, as shown in FIGS. The dual-bearing reel includes a reel body 1, a handle assembly 2 for rotating a spool disposed on the side of the reel body 1, and a spool for spooling a spool that is rotatably and detachably mounted inside the reel body 1. 4 is provided. On the reel body 1 side of the handle assembly 2, a star drag 3 for drag adjustment is provided.
[0019]
The reel body 1 has a frame 5, side covers 6 mounted on both sides of the frame 5, and a front cover 7 that covers the front of the frame 5.
[0020]
As shown in FIGS. 3 to 5, the spool 4 includes a dish-shaped flange portion 4a on both sides, a cylindrical bobbin trunk 4b formed between the flange portions 4a, and an inner portion of the bobbin trunk 4b. And a shaft mounting portion 4c integrally formed at the center so as to have a space on the peripheral side. The spool 4 is non-rotatably fixed to the spool shaft 10 that penetrates the shaft mounting portion 4c. The spool shaft 10 is rotatably supported by a bearing provided on the side cover 6. Further, the outer diameter of the bobbin trunk 4b is in the range of 40% to 80% of the outer diameter of the flange 4a, forming a so-called shallow groove spool. The outer diameter of the flange portion 4a is in the range of 30 mm to 60 mm.
[0021]
As shown in FIG. 1 to FIG. 4, circular through holes 40 penetrating the inner and outer circumferences are formed in the bobbin trunk 4 b by two lines at intervals in the axial direction and by eight places in the circumferential direction. ing. Between the two rows of through-holes 40, another row of meat stealing portions 50 having the same diameter as the through-holes 40 is formed by cutting so as to reach the shaft mounting portion 4c. . The through hole 40 and the meat stealing portion 50 are arranged so that the phases are shifted in the circumferential direction.
[0022]
Since the meat stealing portion 50 is formed using a cutting drill or the like from the outer periphery of the bobbin trunk 4b toward the shaft attachment portion 4c, the bottom portion of the meat stealing portion 50 has a sharp shape. Further, the axial length of the meat stealing portion 50 of the bobbin trunk 4b is formed to be longer than the axial length of the portion having the meat stealing portion 50 of the shaft mounting portion 4c, as shown in FIG. The meat stealer 50 penetrates a part of the shaft attachment portion 4c in the axial direction.
[0023]
In such a spool 4, the meat stealing portion 50 is formed in the shaft attachment portion 4 c that occupies most of the mass of the spool 4. Therefore, the weight of the spool 4 can be reduced effectively by reducing the weight of the shaft mounting portion 4c.
[0024]
[Other Embodiments]
(A) In the above-described embodiment, the shallow groove spool of the low-profile type double-bearing reel for bait casting is used. However, the present invention is not limited to this, and the spools of all other types of double-bearing reels are used. The invention can be applied.
[0025]
(B) In the above-described embodiment, the meat stealing portion 50 is formed in a concave shape having a bottom portion. However, as shown in FIG. 5, the meat stealing portion 50 may be a through-hole penetrating the shaft attachment portion 4c. .
[0026]
(C) In the above embodiment, the meat stealer 50 is circular. However, as shown in FIG. 6, the meat stealer 50 may have an arbitrary shape such as an ellipse or a polygon. Further, the meat stealing portions 50 may be formed in a plurality of rows in the axial direction, or the meat stealing portions 50 may have different shapes from the through holes 40. The position, number, size, and the like of the meat stealing unit 50 can be arbitrarily set.
[0027]
(D) As shown in FIG. 10, the meat stealing portion 50 may be formed to be shifted with respect to the spool shaft 10.
[0028]
(E) In the above embodiment, the bottom portion of the thinned-out part 50 had become pointed shape, or form a flat portion to the bottom portion, or may be rounded bottom portion.
[0029]
【The invention's effect】
According to the present invention, in the spool of the dual-bearing reel, since the concave portion is formed in the shaft mounting portion, the weight of the spool can be effectively reduced.
[Brief description of the drawings]
FIG. 1 is a plan view of a dual-bearing reel adopting an embodiment of the present invention.
FIG. 2 is a side view of the dual-bearing reel.
FIG. 3 is a sectional view of a spool of the dual-bearing reel.
FIG. 4 is a side view of the spool.
FIG. 5 is a diagram corresponding to FIG. 3 in another embodiment.
FIG. 6 is a view corresponding to FIG. 1 of still another embodiment.
FIG. 7 is a view corresponding to FIG. 4 of still another embodiment.
[Explanation of symbols]
4 spool 4a flange 4b bobbin trunk 4c shaft mounting part 50 meat stealing part

Claims (7)

A spool of a dual-bearing reel that is rotatably supported with respect to the reel body and is attached to a spool shaft,
A bobbin trunk having a space inside;
A shaft mounting portion that has an inner circumference attached to the spool shaft, and an outer circumference that is coupled to the bobbin trunk so as to form the space;
And flange portions provided at both ends of the bobbin trunk,
A meat stealing part that reaches the inside of the shaft attachment part from the outer periphery of the bobbin trunk is formed ,
The axial length of the meat stealing portion of the bobbin trunk has the meat stealing portion of the shaft mounting portion so that the meat stealing portion penetrates in the axial direction of the spool shaft at the shaft mounting portion. Longer than the axial length of the part,
Double bearing reel spool.   2. The spool of a double-bearing reel according to claim 1, wherein the meat stealing portion is provided at a plurality of locations at predetermined intervals in the circumferential direction of the bobbin trunk. The spool of the double-bearing reel according to claim 1 or 2 , wherein the meat stealing portion has a circular shape.   The double-bearing reel spool according to claim 3, wherein a bottom portion of the meat stealing portion is formed in a tapered shape having a diameter that increases outward in the radial direction. The spool of a double-bearing reel according to claim 1 or 2 , wherein the meat stealing portion has a non-circular shape. The spool of the dual-bearing reel according to any one of claims 1 to 5 , wherein a minimum outer diameter of the bobbin trunk is in a range of 40% to 80% of a maximum outer diameter of the flange portion. The spool of the dual-bearing reel according to any one of claims 1 to 6 , wherein a maximum outer diameter of the flange portion is in a range of 30 mm to 60 mm.

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