JP2004024100A - Spool for fishing line - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a spool for a fishing line which is connected to another spool of the same shape by sharing a revolving shaft and with which the connected spools are each independently rotated and the rotations are smooth and resistance is low. <P>SOLUTION: The spool 1 for a fishing line connectable to another spool 1' of the same shape is equipped with a drum 2, a first and a second flanges 3 and 4 attached to both the ends of the drum 2, a hook 5 and a prong 6. The hook 5 is arranged at a position outside the outer surface 10 of the first flange and the prong 6 is installed at a position inside the outer surface 11 of the second flange. When the spool is connected to the other spool 1', the spool 1 for a fishing line has a distance in the revolving shaft direction from a contact position 12 at a hook tip to the outer surface 10 of the first flange larger than a distance in the revolving shaft direction from a contact position 13' on the prong surface to the outer surface 11 of the second flange. <P>COPYRIGHT: (C)2004,JPO

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a fishing line spool, and more particularly to a fishing line spool that can be connected to another spool having the same shape by sharing a rotation axis.
[0002]
[Prior art]
Anglers often use a plurality of fishing lines having different patterns at a fishing spot. In such a case, it is important to have a plurality of spools around which different patterns of fishing line are wound, and to be able to quickly take out the desired pattern fishing line while moving the fishing spot. However, if a spool is placed in a pocket or a tool storage box, it becomes bulky, and it takes time to select an appropriate spool. Therefore, it is desired to carry a plurality of spools compactly so that a fishing line of a desired pattern can be easily taken out.
[0003]
U.S. Pat. No. 5,354,012 discloses a fishing line in which a spool having the same shape can be connected in a side-by-side relationship, and the connected spools sharing a rotation axis can relatively rotate. The spool is described. In this spool, the connected spools do not fall apart, and the design of the fishing line design is easy. Further, since only one of the plurality of connected spools can be independently rotated, it is possible to pull out only a fishing line having a desired pattern.
[0004]
FIG. 5 is a side cross-sectional view when the spool described in US Pat. No. 5,354,012 is connected to another spool having the same shape. FIG. 6 is an enlarged cross-sectional view of a connecting portion surrounded by a two-dot chain line in FIG. The other spool 20 'having the same shape as the spool 20 is connected by engaging the cylindrical wall 21' and the cylindrical hub 22 in a snap-fit manner. At this time, the outer surface 23 'of the cylindrical wall 21' is tapered inward from its free end 24 ', and the inner surface 25 of the cylindrical hub 22 is also tapered inward from its free end 26. I have. The inner diameter at the free end 26 of the cylindrical hub 22 is slightly smaller than the outer diameter at the free end 24 'of the cylindrical wall 21', so that the cylindrical hub 22 is detachably engaged.
[0005]
[Problems to be solved by the invention]
The spool 20 described in U.S. Pat. No. 5,354,012 has a tapered cylindrical wall 21 ′ having an outer surface 23 ′ and a tapered cylindrical hub 22 having an inner surface 25 in contact with each other. Engage with spool 20 '. Therefore, since the outer surface 23 'of the cylindrical wall 21' and the inner surface 25 of the cylindrical hub 22 are in contact with each other, the contact area is increased, and the frictional resistance when the spool rotates independently is large. Also, the free end 24 'of the cylindrical wall 21', the free end 26 of the cylindrical hub 22 or the outer surface of the flange will come into contact with the adjacent spool, again producing frictional resistance.
[0006]
When pulling out the fishing line, if the resistance to the rotation of the spool is large, unnecessary tension will be applied to the drawn fishing line. As a result, the drawn fishing line may be twisted or stretched, which is not preferable. This is particularly important when the fishing line to be drawn is thin. In addition, when the resistance to the rotation of the spool is large, it may be an obstacle when trying to quickly pull out the fishing line at the fishing spot.
[0007]
The present invention has been made in order to solve the above-mentioned problem, and it is possible to independently rotate only one of a plurality of connected spools, and to easily pull out only a fishing line of a desired pattern. It is intended to provide a fishing line spool capable of performing the following. In particular, an object of the present invention is to provide a fishing line spool which has a low resistance to rotation when the fishing line is drawn out, and can quickly draw out a desired fishing line without causing twisting or elongation of the fishing line.
[0008]
[Means for Solving the Problems]
An object of the present invention is to provide a fishing line spool which can be connected to another spool having the same shape by sharing a rotating shaft,
A drum on which the fishing line is wound on the outer surface, first and second flanges provided at both ends of the drum and perpendicular to the rotation axis, and a hook and a projection for connecting to another spool;
The hook is provided at a position outside the outer surface of the first flange, the projection is provided at a position inside the outer surface of the second flange,
When connected to another spool, the projection surface of the other spool at the contact position of the hook tip, it is possible to contact the hook tip of the other spool at the contact position of the projection surface, respectively,
The distance in the rotation axis direction from the contact position of the hook tip to the outer surface of the first flange is larger than the distance in the rotation axis direction from the contact position of the projection surface to the outer surface of the second flange;
The problem is solved by providing a fishing line spool in which each of the connected spools can rotate independently when connected to another spool.
[0009]
The spool of the present invention is connected to another spool having the same shape by engaging the hook and the projection with each other. At this time, it is possible to have a certain clearance between the flange outer surfaces of the connected spools by controlling the distance from the position where the hook tip and the projection surface contact each other to the outer surface of the flange. . By having a certain clearance, unnecessary force is not applied to a portion where the spools are in contact with each other, and it is possible to reduce frictional resistance when independently rotating.
[0010]
At this time, it is preferable that a hook is formed on the first flange side of the drum inner surface, and a protrusion is formed on the second flange side of the drum inner surface. By providing the hook and the projection directly on the inner surface of the cylindrical drum, the configuration of the spool can be simplified.
[0011]
It is preferable that a portion of the hook tip that can come into contact with the projection surface of another spool has a circular shape perpendicular to the rotation axis. It is also preferable that a portion of the projection surface that can come into contact with the tip of the hook of another spool has a circular shape perpendicular to the rotation axis. In order for the spool of the present invention to rotate independently of each other when connected to another spool of the same shape, it is important that both the hook and the projection are arranged on a circumference perpendicular to the rotation axis. It is. At this time, the portion in which the hook or the protrusion can contact each other has a continuous circular shape, so that the spool can rotate smoothly.
[0012]
It is preferable that the distance in the rotation axis direction from the contact position of the hook tip to the outer surface of the first flange is larger by 5 to 300 μm than the distance in the rotation axis direction from the contact position of the projection surface to the outer surface of the second flange. This distance is equivalent to the clearance between the outer surfaces of the flanges of the connected spools.However, keeping this distance within a certain range can reduce the contact resistance and stabilize the connected spools. Can be rotated. It is also preferable that the distance from the contact position of the hook tip to the rotation axis is at least 0.4 times the distance from the outer periphery of the flange to the rotation axis. This is because the rotation of the spool is more stable when the hook and the projection are engaged at a position away from the rotation shaft.
[0013]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 is a side view showing an example of the spool of the present invention. FIG. 2 is a front view thereof. FIG. 3 is a sectional view of the spool of FIG. 1 in a state where the spool is connected to another spool having the same shape. FIG. 4 is an enlarged cross-sectional view of a connection portion surrounded by a two-dot chain line in FIG.
[0014]
As shown in FIGS. 1 to 4, a fishing line spool 1 of the present invention is connected to a drum 2, a first flange 3 and a second flange 4 provided at both ends of the drum 2, and another spool 1 ′. Hooks 5 and projections 6.
[0015]
The drum 2 is a substantially cylindrical member sharing a central axis with the rotating shaft 7, and a fishing line is wound around its outer surface 8. A first flange 3 and a second flange 4 are provided at both ends of the drum 2, and a fishing line is wound between the two flanges 3, 4. Since the outer circumferences of the flanges 3 and 4 are circular and the outer diameters of the first flange 3 and the second flange 4 are the same, the fishing line can be easily pulled out. The outer surfaces of the flanges 3 and 4 are flat so that a certain clearance can be maintained between the outer surfaces of the flanges of the other connected spools. A cut or the like for fixing the end of the fishing line may be provided on the outer periphery of the flanges 3 and 4. The thickness of the flanges 3 and 4 is smaller than the thickness of the drum 2 so that they are not bulky when connected.
[0016]
1 to 4, the hook 5 is formed on the first flange side of the inner surface 9 of the drum, and the projection 6 is formed on the second flange side of the inner surface 9 of the drum. In the spool of the present invention, the positions where the hooks and the projections are formed are not particularly limited, and a cylindrical member is separately formed on the inner diameter side of the drum separately from the drum, and the hooks and the projections are formed on the inner surface or the outer surface thereof. It can also be formed. However, in order to simplify the structure and provide a lightweight spool, it is desirable to arrange the hook 5 and the protrusion 6 on the inner surface 9 of the drum.
[0017]
Here, the hook 5 is provided at a position outside the outer surface 10 of the first flange, and the projection 6 is provided at a position inside the outer surface 11 of the second flange. When being connected to another spool 1 ', the hook 5 and the projection 6' of the other spool 1 'are connected by engagement. It can be easily connected by pushing in the direction parallel to the rotating shaft 7, and can be easily separated by pulling. In the case where the spool is formed of plastic, an engagement sound is generated when the hook 5 and the projection 6 'are engaged with each other, so that the angler can easily confirm that the connection has been securely performed.
[0018]
When connected to another spool 1 ′, it is possible to make contact with the contact position 13 ′ on the projection surface of the other spool 1 ′ at the contact position 12 at the tip end of the hook. At this time, the distance (A) in the rotation axis direction from the contact position 12 at the tip of the hook to the outer surface 10 of the first flange is the distance in the rotation axis direction from the contact position 13 'on the projection surface to the outer surface 11' of the second flange. It is important that it is larger than (B). In this way, in a state where the hook 5 and the protrusion 6 'are in contact with each other, the clearance indicated by AB can be provided between the outer surfaces of adjacent fringes. In the example of the drawing, the clearance (AB) is 50 μm. The value of this clearance is usually preferably from 5 to 300 μm. If it is less than 5 μm, it may be difficult to control the precision of the molding dimension, and if it exceeds 300 μm, the rattling of the engaging portion may increase and the rotation of the spool may not be stabilized. The value of AB is preferably at least 10 μm, and more preferably at most 200 μm.
[0019]
At the contact position 13 'on the surface of the projection 6', the angle (θ) between the plane contacting the projection surface and the rotation axis is about 45 °. If the angle (θ) is too small, the contact position 13 ′ is likely to shift due to variations in molding dimensions and stress acting between the spools, and it is difficult to maintain an appropriate clearance. In this respect, the angle (θ) is preferably equal to or greater than 20 °, and more preferably equal to or greater than 30 °. On the other hand, if the angle (θ) is too large, the hook may be easily broken when the connection is released, and is usually 90 ° or less.
[0020]
The portion of the tip of the hook 5 that can come into contact with the surface of the projection 6 'of the other spool 1' is a continuous circle perpendicular to the rotation axis. That is, the hook 5 in the example shown in FIGS. 1 to 4 is continuous on the circumference and has a hook-like cross section. Since it is formed continuously as described above, it can be smoothly rotated in a state of being engaged with the protrusion 6 'of the other spool 1'. On the other hand, the portion of the surface of the protrusion 6 ′ of the other spool 1 ′ that can come into contact with the tip of the hook 5 of the spool 1 is a continuous circle perpendicular to the rotation shaft 7. That is, the protrusion 6 'in the example shown in FIGS. 1 to 4 is formed as a continuous ridge. Since it is formed continuously as described above, the spool 1 can be smoothly rotated while being engaged with the hook 5 of the spool 1. 1 to 4, both the hook 5 and the projection 6 are formed in a continuous circular shape, so that the engagement is stable and the rotation is smooth. The hooks or projections may be formed discontinuously, but if both are formed discontinuously, the rotation may not be smooth.
[0021]
In addition, in FIGS. 1 to 4, the distance (C) from the contact position 12 of the tip of the hook to the rotating shaft 7 is 0.62 times the distance (D) from the flange outer periphery 14 to the rotating shaft 7. The fact that the ratio (C / D) is large means that the supported position when the connected spools 1 and 1 'rotate independently approaches the flange outer periphery 14, and the same clearance (AB) However, the rotation of the spool is stabilized. From this viewpoint, the ratio (C / D) is preferably 0.4 times or more, more preferably 0.5 times or more. Since it is necessary to secure a portion around which the fishing line is wound, the normal ratio (C / D) is 0.9 times or less.
[0022]
The material of the spool of the present invention as described above is not particularly limited, but is preferably made of plastic. Examples of the plastic used include thermoplastic resins such as polypropylene, ABS, AS, polyvinyl chloride, and polystyrene. It is preferably molded by injection molding using such a thermoplastic resin.
[0023]
The fishing line wound on the spool of the present invention is not particularly limited, and a line, a harness, a taper line, or the like can be wound. In particular, when winding a thin fishing line such as harris, the fishing line can be pulled out without being twisted or stretched, which is useful. A plurality of spools wound with different patterns of fishing line can be connected and put in a pocket or tool case, and a desired pattern of fishing line can be easily and quickly pulled out and used at a fishing place.
[0024]
【The invention's effect】
The thus obtained spool of the present invention can be connected to another spool of the same shape by sharing the rotation shaft. Then, when connected to another spool, each of the connected spools can rotate independently, and the rotation is smooth and the resistance is small.
[Brief description of the drawings]
FIG. 1 is a side view showing an example of a spool of the present invention.
FIG. 2 is a front view of the spool of FIG.
FIG. 3 is a cross-sectional view of the spool of FIG. 1 in a state where the spool is connected to another spool having the same shape.
FIG. 4 is an enlarged sectional view of a connection portion surrounded by a two-dot chain line in FIG.
FIG. 5 is a side sectional view when a spool described in US Pat. No. 5,354,012 is connected to another spool having the same shape.
FIG. 6 is an enlarged sectional view of a connection portion surrounded by a two-dot chain line in FIG.
[Explanation of symbols]
Reference Signs List 1 Spool 1 'Other spool 2 Drum 3 First flange 4 Second flange 5, 5' Hook 6, 6 'Projection 12 Contact position of hook tip 13' Contact position of projection surface

Claims (6)

A fishing line spool that can be connected to another spool of the same shape by sharing a rotation axis,
A drum on which the fishing line is wound on the outer surface, first and second flanges provided at both ends of the drum and perpendicular to the rotation axis, and a hook and a projection for connecting to another spool;
The hook is provided at a position outside the outer surface of the first flange, the projection is provided at a position inside the outer surface of the second flange,
When connected to another spool, the projection surface of the other spool at the contact position of the hook tip, it is possible to contact the hook tip of the other spool at the contact position of the projection surface, respectively,
The distance in the rotation axis direction from the contact position of the hook tip to the outer surface of the first flange is larger than the distance in the rotation axis direction from the contact position of the projection surface to the outer surface of the second flange;
A fishing line spool wherein each of the connected spools can rotate independently when connected to another spool. The fishing line spool according to claim 1, wherein a hook is formed on the first flange side of the drum inner surface, and a projection is formed on the second flange side of the drum inner surface. 3. The fishing line spool according to claim 1, wherein a portion of the hook tip that can come into contact with a projection surface of another spool has a circular shape perpendicular to a rotation axis. The fishing line spool according to any one of claims 1 to 3, wherein a portion of the projection surface that can contact a hook tip of another spool has a circular shape perpendicular to a rotation axis. The distance in the rotation axis direction from the contact position of the hook tip to the outer surface of the first flange is larger than the distance in the rotation axis direction from the contact position of the projection surface to the outer surface of the second flange by 5 to 300 μm. A spool for a fishing line according to any of the above. The fishing line spool according to any one of claims 1 to 5, wherein a distance from the contact position of the hook tip to the rotation axis is at least 0.4 times a distance from the outer periphery of the flange to the rotation axis.

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