JP3930766B2 - Lure - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a tungsten or tungsten alloy luer used for lure fishing.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, a lure used for lure fishing is composed of a luer body and a tacking fastening portion attached to the lure body, and a tacking device such as a line or a hook is fastened to the tacking fastening portion.
This type of lure needs to sink quickly into the water, and the entire lure needs to be heavy so that a long flight distance can be secured during casting. For this reason, a metal jig called a metal jig is required. Most of the lures are made of lead, which is easily processed.
[0003]
Thus, the manufacture of such a lure is achieved by placing a metal core material (fastening member) such as stainless steel with a fastening part formed at both ends in the mold, and then a molten metal such as lead in the mold. A method of filling and solidifying the lure has been widely used, thereby producing a lure in which the metal core material penetrates in the longitudinal direction of the luer body and the tacking portion protrudes outside the luer body.
However, the luer manufactured in this way is only a solid molten metal of lead attached to the metal core material, so the metal core material is loose against the lure body after long-term use. There was a fear that it would end up.
[0004]
In addition, as described above, the entire lure needs to be heavier in order to sink quickly in water and extend the distance of casting, but lead lures are large in order to increase the weight. As a result, as a result, the volume is increased and it is easy to flow, the resistance of water is increased, and the required settlement speed cannot be obtained.
[0005]
Furthermore, when casting a lure, it has been pointed out that if the entire lure is increased in weight in order to increase the inertial force, air resistance is received as the volume increases.
Therefore, as shown in FIG. 12 , the lure body 1 is formed of a tungsten alloy having a specific gravity higher than that of lead, and lines and hooks are connected to the front and rear sides of the lure body 1 via retaining rings (device fastening portions) 3 and 5. Japanese Patent Laid-Open No. 10-309150 discloses a lure 9 that can attach 7.
[0006]
In the figure, reference numeral 10 denotes a synthetic resin coating layer coated on the surface of the lure body 1.
Thus, according to such a lure 9, it is possible to increase the weight of the entire lure 9 while reducing the size as compared with the conventional example in which the entire lure is formed of lead.
[0007]
Further, Japanese Unexamined 11-56169 discloses a similar purpose, as well as buried pipe-like core member 13 molded in high density metal such as tungsten lure body 11 made of lead as shown in FIG. 13 and FIG. 14 A luer 21 is disclosed in which a wire 19 having eye ends 15 and 17 connected to both ends is inserted through the core member 13 so that the eyes 15 and 17 protrude from the front and rear portions of the lure body 11. Therefore, according to the lure 21, the lure body can be increased in weight with the same size as compared with the case where the lure body is formed only of lead.
[0008]
[Problems to be solved by the invention]
However, the structure of the luer 9 shown in FIG. 12 is unknown as to how the retaining rings 3 and 5 are fixed to the front and rear sides of the luer body 1. The mounting strength of 5 may not be sufficient.
That is, as described above, a lead lure is manufactured by placing a metal core having a fastening portion on both ends in a mold and then pouring a molten lead into a solid. Tungsten cannot be formed in the same way because of its high melting temperature.
[0009]
Therefore, it is difficult for a lure made of tungsten or a tungsten alloy to provide the device fastening portion on the luer body, and it is difficult to securely fix the device fastening portion to the luer body.
Further, in the conventional example shown in FIG. 13 , although the core material 13 is formed of a high specific gravity metal, the core material 13 is covered with a large amount of lead, so that the weight increases for the size. The reality is that it is not a lure with a fast sinking speed.
[0010]
However, the lead covering the core material 13 is easily deformed and easily scratched, and it has been pointed out that the lure body 11 is deformed by large fish and the surface is easily scratched by the root hook. It was.
The present invention has been devised in view of such circumstances, and solves the problems as described above, secures the required weight while reducing the size of the entire lure, and at the same time, the displacement of the fastening member and the fastening portion An object of the present invention is to provide a lure made of tungsten or a tungsten alloy that does not fall off.
[0011]
[Means for Solving the Problems]
In order to achieve such an object, a lure according to claim 1 is manufactured integrally with tungsten or a tungsten alloy, and a luer body in which a fixing member mounting hole is provided, and a shaft portion is formed in the fixing member mounting hole. The fastening portion formed at the end portion of the shaft portion includes a fastening member that protrudes to the outside of the luer body. The fastening member mounting hole of the luer body is formed in a tapered shape, and the fastening member is The shaft portion of the attachment member is formed in a taper shape along the attachment member mounting hole, and is an engagement portion that regulates the displacement of the luer body with respect to the attachment member .
[0012]
The invention according to claim 2 is characterized in that, in the lure according to claim 1, the fastening member is pressure-bonded to the luer main body within the fastening member mounting hole. The invention according to claim 1 or 2 is characterized in that in the lure according to claim 1 or 2, the fastening member is bonded to the luer body in the fastening member mounting hole.
[0013]
(Function)
According to the invention according to each claim, since the lure body is formed of tungsten or a tungsten alloy having a specific gravity larger than that of lead, the size can be reduced and the weight can be increased as compared with the conventional lure. .
For this reason, cast lures have a reduced air resistance and increased flight distance as the volume is reduced compared to conventional lures, and are less likely to be washed away and less water resistant as the volume is reduced. As a result, the settlement speed increases.
[0014]
Then, when the fish holds the lure, a force is applied to the lure body by the pull, but the fastening member formed in a tapered shape along the fastening member attachment hole is formed in the fastening member attachment hole formed in a tapered shape. The member engages to restrict the displacement of the luer body relative to the fastening member, thereby preventing separation of the luer body and the fastening member.
According to the invention according to claim 2, the fastening member is pressure-bonded to the luer body in the fastening member mounting hole, and the displacement of the luer body with respect to the fastening member is more reliably regulated. According to the invention, the fastening member is bonded to the luer body in the fastening member mounting hole, and the displacement of the luer body with respect to the fastening member is more reliably regulated .
[0015]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
1 to 6 show a first embodiment of a lure according to claims 1 and 2 , in which reference numeral 23 denotes a specific gravity of 14.0 to 19.35 (preferably produced by powder metallurgy). 16 or more), as shown in FIGS. 2 and 3, the luer body 23 resembles the shape of a fish and gradually increases in thickness and width from the front part 25 to the rear part 27. It is integrally molded.
[0016]
Thus, the tungsten alloy for forming the lure body 23 contains tungsten and one or more metals of nickel, molybdenum and cobalt having a specific gravity smaller than this, and the tungsten content is 70 wt% or more and 100 wt%. Less than%.
The tungsten alloy luer body 23 has a weight of 60% by weight or more of the entire lure.
[0017]
Thus, the tungsten content is set to 70% by weight or more in order to obtain a specific gravity (specific gravity of 14.0 or more) necessary for the lure, and the content is set to less than 100% by weight. This is because if the melting point is as high as 3380 ° C., it will not sinter unless it is high temperature, but the sintering temperature can be lowered to about 1500 ° C. by adding nickel.
[0018]
As a result, a tungsten alloy luer body 23 having a specific gravity of 14.0 to 19.35 greater than lead (specific gravity 11.3) is obtained. At this time, the Vickers hardness (JIS Z 2244) of the lure body 23 is HV200 or more. When it is, it will become preferable that a surface is hard to be damaged.
[0019]
However, in order to improve the workability by reducing the hardness, the luer body 23 may be polished by adding copper or iron to the tungsten alloy. In this case, if the surface is subjected to rust prevention treatment Good.
As shown in FIGS. 3 and 4, one vertically long fixing member attachment hole (hereinafter referred to as “attachment hole”) 29 is provided in the center from the front portion 25 to the rear portion 27 of the luer body 23, A fixing member 33 for fixing the line and the hook 31 is attached to the attachment hole 29.
[0020]
As shown in FIG. 5, the fastening member 33 is formed by punching a metal plate such as iron, stainless steel, titanium alloy or the like into a shape like a handle of an ice cream, and a shaft portion extending from the front portion 35 side to the rear portion 37 side. 1 is formed into a taper shape having a wider width sequentially, and fastening holes 39 and 41 are further punched along the outer shape at both ends thereof, and a fastening portion 43 for fastening the line, and FIG. Thus, a fastening portion 47 for fastening the hook 31 via the split ring 45 is provided.
[0021]
The mounting hole 29 described above extends along the outer shape of the shaft portion 38 of the fastening member 33 and extends from the front portion 25 to the rear portion 27 of the luer body 23 in the width of the mounting hole 29 (a direction crossing the axial length direction). (Length) is increased. Then, as shown in FIG. 5, the fastening member 33 is inserted and pressed into the mounting hole 29 from the rear portion 27 side of the luer body 23 from the front portion 35 side, and the shaft portion 38 is pressed by the pressing force at the time of insertion. When the fastening member 33 (shaft portion 38) is crimped to the mounting hole 29 in this manner, the fastening portion 33 is fastened from the front portion 25 and the rear portion 27 of the luer body 23 as shown in FIG. The parts 43 and 47 protrude to the outside, and the fastening member 33 is pressure-bonded in the mounting hole 29 of the luer main body 23 to prevent them from being loosened by an external force.
[0022]
Thus, by attaching the fastening member 33 to the luer body 23 in this way, the upper and lower end faces 49 and 51 of the shaft portion 38 which is inclined relative to each other, the upper and lower inner walls 53 and 55 on the mounting hole 29, and Are engaged with each other and function as an engaging portion that regulates the displacement of the luer body 23 with respect to the fastening member 33 in the direction of the arrow (the hook 31 direction behind the lure) in FIG.
[0023]
Further, because of this engagement, the upper and lower end surfaces 49 and 51 of the shaft portion 38 and the upper and lower inner walls 53 and 55 of the attachment hole 29 are pressure-bonded. Deviation to the front of the lure is also restricted.
Then, as shown in FIG. 1, fish eyes 57, scale patterns (not shown), colors and the like are drawn on the outer surface of the lure body 23, and the whole is coated with a covering layer 59 such as a synthetic resin as shown in FIG. Such a lure 61 is finished.
[0024]
Since the present embodiment is configured as described above, a line (not shown) may be connected to the fastening portion 43, and the hook 31 may be fastened to the fastening portion 47 via the split ring 45. Since it is formed of a tungsten alloy having a larger specific gravity than the conventional lure, the size can be reduced and the weight can be increased as compared with a conventional lure formed only of lead.
[0025]
For this reason, the cast lure 61 has a reduced volume as long as it has the same weight when dropped in water as the air resistance decreases and the flight distance increases as the volume of the lure 61 is reduced. It is difficult to be washed away and the resistance to water is reduced, so that the subsidence speed is increased, and the fishing results are improved for fish that prefer small baits in the deep.
Since the luer body 23 is molded with a hardness that does not easily scratch the surface, the surface is hardly scratched even if it is rooted or the like, and it does not deform due to large fish.
[0026]
Further, when the fish holds the lure 61, the pull applies a force to the lure body 23 in the direction of the arrow in FIG. 1, but as described above, the upper and lower end faces 49, 51 on the shaft portion 38 of the fastening member 33, The upper and lower inner walls 53 and 55 of the mounting hole 29 are engaged with each other to restrict the displacement of the luer body 23 in the same direction with respect to the fastening member 33 and prevent the luer body 23 and the fastening member 33 from being separated. To do.
[0027]
Therefore, according to the lure 61 according to the present embodiment, as compared with the conventional lure formed only of lead and the lures 9 and 21 shown in FIG. 16 and below, the flying distance during casting is increased and the settlement speed is increased. The surface is hard to be scratched, and the lure main body 23 is not deformed by a large fish.
Furthermore, according to the present embodiment, the fastening member 33 and the luer main body 23 are not separated due to fish pulling, and the fastening member 33 does not fall off or become loose. However, it is possible to maintain the original function of the lure over a long period of time by combining it with the fastening member 33 to ensure the strength.
[0028]
In the above embodiment, the fastening member 33 is press-fitted into the mounting hole 29 and the fastening member 33 is pressure-bonded to the luer main body 23, but an adhesive is applied to the shaft portion 38 of the fastening member 33 for mounting. It may be applied.
Also, stop Chakubuzai 33 or cut to length from the plug to the mounting hole 29 may be provided with fastening holes 39, 41.
[0029]
FIGS. 7 and 8 show a lure according to the second embodiment of claims 1 and 2 , in which 63 denotes a substantially same outer shape using the same material and manufacturing method as the luer body 23 described above. In the integrally formed luer main body, a vertically long mounting hole 69 extends through the center from the front portion 65 to the rear portion 67, and a fastening member 71 is attached to the mounting hole 69.
The fastening member 71 is formed by punching a metal plate such as iron, stainless steel, titanium alloy or the like into a shape like a handle of an ice cream, and as shown in FIG. The shaft portion 76 has the same vertical width over the 75 side, and the shaft portion 76 is formed so that the thickness of the shaft portion 76 gradually increases on the rear portion 75 side as shown in FIG. Further, both ends of the fastening member 71 are further provided with a fastening portion 81 for fastening the line by punching the fastening holes 77 and 79 along the outer shape, and a fastening portion 83 for fastening the hook. ing.
[0030]
The attachment hole 69 of the luer body 63 is formed along the outer shape of the shaft portion 76 of the fastening member 71, and the front part of the fastening member 71 is inserted into the attachment hole 69 from the rear 67 side of the luer body 63. The shaft portion 76 of the fastening member 71 is pressure-bonded into the attachment hole 69 by being inserted and pressed from the 73 side. Then, when the fastening member 71 (shaft portion 76) is pressure-bonded to the mounting hole 69 in this manner, the fastening portions 81 and 83 are exposed to the outside from the front portion 65 and the rear portion 67 of the luer main body 63 as shown in FIG. It is designed to protrude.
[0031]
Thus, by attaching the fastening member 71 to the luer body 23 in this way, as shown in FIG. 8, the rear side surfaces 85 and 87 of the shaft portion 76 of the fastening member 71 and the rear side wall of the mounting hole 69. 89 and 91 are engaged with each other to function as an engaging portion for restricting the displacement of the luer body 63 with respect to the fastening member 71 in the direction of the arrow (the hook direction behind the luer) in the drawing, and the mounting hole 69. Since the fixing member 71 is pressure-bonded to the fixing member 71, the displacement of the luer body 63 forward of the luer with respect to the fixing member 71 is also restricted.
[0032]
Then, like the embodiment shown in FIG. 1, fish eyes, scales, colors, etc. are drawn on the outer surface of the lure body 63, and the whole is coated with a covering layer 59 such as a synthetic resin as shown in FIG. Such a lure 93 is finished.
Since the present embodiment is configured as described above, a line may be connected to the fastening portion 81 and a hook may be fastened to the fastening portion 83 via a split ring. The luer body 63 has a specific gravity higher than that of lead. Since it is formed of a large tungsten alloy, the size can be reduced and the weight can be increased as compared with a conventional lure formed only of lead.
[0033]
For this reason, the cast lure 93 has a reduced air volume as the volume of the lure is reduced and the flight distance is increased as the volume of the lure is reduced. It is difficult to be washed away and the resistance to water is reduced, so that the subsidence speed is increased, and the fishing results are improved for fish that prefer small baits in the deep.
[0034]
Since the lure body 63 is formed with a hardness that prevents the surface from being scratched, the surface is not easily scratched even when rooted or the like, and the fish does not deform due to large fish. Further, when the fish holds the lure 63, the pull applies a force to the lure body 63 in the direction of the arrow in FIG. 8, but as described above, the rear side surfaces 85 and 87 of the shaft portion 76 of the fastening member 71, The rear side walls 89 and 91 of the mounting hole 69 are engaged with each other to restrict the displacement of the luer body 63 in the same direction with respect to the fastening member 71 and prevent the luer body 63 and the fastening member 71 from being separated.
[0035]
Therefore, according to the present embodiment as well as the luer 61 of FIG. 1, the required weight is secured while reducing the size of the entire luer 93, and the fastening member 71 and the fastening parts 81, 83 are displaced or dropped. There is no breakage, and the original function of the lure can be maintained over a long period of time.
Even in the present embodiment, an adhesive may be applied to the shaft portion 76 of the fixing member 71 when the fixing member 71 is mounted in the mounting hole 69.
[0045]
9 to 11 show an embodiment of a lure according to claims 1 to 3. In this embodiment, instead of the fastening member 33 of FIG. 1, the fastening member is made of iron, stainless steel, titanium alloy or the like. A metal wire is formed into a ring shape, which is press-fitted into an attachment hole 29 of the luer body 23 and bonded with an adhesive or the like. Hereinafter, the present embodiment will be described with reference to the drawings. The same reference numerals are given to the same components and their structural description is omitted.
[0046]
9 to 11 , reference numeral 129 denotes a fastening member formed by welding both ends of the above-described metal material into a ring shape. As shown in FIG. 11 , the fastening member 129 includes: Corresponding to the hole shape of the mounting hole 29 provided in the luer body 23, the vertical width L is formed so as to gradually increase from the front bent portion to the rear bent portion.
Then, when the press-fit the fastening member 129 from the rear 27 side of the lure body 23 into the mounting hole 29 as shown in FIG. 11 from the front of the bent portion, the front 25 of the lure body 23 as shown in FIGS. 9 and 10 The U-shaped bent portion of the fastening member 129 is configured to protrude outward on the rear portion 27 side, and the bent portion protruding to the front portion 25 side stops the line. A bent portion that functions as the attachment portion 131 and protrudes toward the rear portion 27 side functions as a fixing portion 133 that fixes the hook 31.
[0047]
Further, as shown in FIG. 10 , the shaft portions 135 and 137 of the fastening member 129 located in the attachment hole 29 are bonded to the luer main body 23 via the adhesive 139 filled and solidified in the attachment hole 29. Yes.
Then, similar to the embodiments described above, the eyes 57 and scales pattern on the outer surface of the lure body 23, drawing a color, but the present embodiment is coated with a coating layer 59 such as a synthetic resin overall, as shown in FIG. 10 The lure 141 is finished.
[0048]
Since the present embodiment is configured as described above, a line may be connected to the fastening portion 131 and the hook 31 may be fastened to the fastening portion 133 via the split ring 45. Since it is formed of a tungsten alloy having a large specific gravity, the size can be reduced and the weight can be increased as compared with a conventional lure formed only of lead.
[0049]
For this reason, the cast lure 141 has a reduced volume as long as it has the same weight when dropped in water as the air resistance decreases and the flight distance increases as the volume of the lure 141 decreases. With this, the sinking speed increases due to the fact that it is difficult to be washed away and the resistance of water is reduced, and the fishing results are improved for fish that prefer small baits in the deep.
Since the luer body 23 is molded with a hardness that does not easily scratch the surface, the surface is hardly scratched even if it is rooted or the like, and it does not deform due to large fish.
[0050]
Further, when the fish holds the lure 141, the pull exerts a force on the lure body 23 in the direction of the arrow in FIG. 13 (rear of the luer 141), but as shown in FIG. 10 , the shafts 135 and 137 of the fastening member 129 The upper and lower inner walls 53, 55 are engaged with each other and pressed against the attachment hole 29, and the adhesive force of the adhesive 139 is combined to regulate the displacement of the luer body 23 in the same direction with respect to the fastening member 129. Thus, separation of the luer body 23 and the fastening member 129 is prevented.
[0051]
Furthermore, in this embodiment, since the fastening member 129 is pressure-bonded to the luer body 23 in the mounting hole 29, the displacement of the luer body 23 forward of the luer with respect to the fastening member 129 is also restricted. It becomes.
Then, the adhesive 139 prevents water from entering the mounting hole 29.
Therefore, the luer 141 according to the present embodiment can achieve the intended purpose as in the above-described embodiments, and can secure the required weight while reducing the size of the entire lure 141. Therefore, the fixing member 129 is not displaced or dropped off, and the original function of the lure can be maintained for a long time.
[0052]
Instead of the embodiment of FIG. 1, the fastening member is formed into a tapered shape that gradually increases in width toward the front side, and a mounting hole of the lure body is provided along the outer shape of the fastening member, The attachment member may be adhered in the mounting hole via an adhesive, and the intended object can be achieved also by the second embodiment of the first to third aspects.
[0053]
【The invention's effect】
As described above, according to the inventions according to claims 1 to 3 , the fastening member is securely attached to the luer body, and the fastening member does not fall off or loose from the luer body. It is possible to maintain the original function of the lure over a long period of time.
[0054]
Furthermore, according to these inventions, compared to conventional lures formed only of lead, there are excellent advantages such as an increased flight distance during casting and an increased sinking speed. And according to the invention which concerns on Claim 3, it has an advantage which can attach a fastening member to a lure main body more reliably.
[Brief description of the drawings]
FIG. 1 is a side view of a lure according to a first embodiment of claims 1 and 2 ;
FIG. 2 is a cross-sectional view taken along line AA in FIG.
FIG. 3 is a side view of the lure body.
4 is a cross-sectional view taken along line BB in FIG.
FIG. 5 is a process diagram of the manufacturing method of the lure shown in FIG. 1;
FIG. 6 is a cross-sectional view of a luer body and a fastening member attached to the luer body.
FIG. 7 is a cross-sectional view of a luer body of a lure according to a second embodiment of claims 1 and 2 and a fastening member attached to the luer body.
8 is a cross-sectional view of the lure shown in FIG.
9 is a side view of a lure according to one embodiment of the claims 1 to 3.
10 is a cross-sectional view of the lure shown in FIG.
11 is a process step diagram of a method of manufacturing the lure shown in FIG.
FIG. 12 is a cross-sectional view of a conventional lure.
FIG. 13 is a side view of another conventional lure.
14 is a cross-sectional view taken along the line CC of FIG.
[Explanation of symbols]
23, 63 Luer body
29, 69 Mounting hole
33, 71, 129 Fastening member
43, 47, 81, 83, 131, 133 Fastening part
61, 93, 141 Luer 139 Adhesive

Claims (3)

A luer body manufactured integrally with tungsten or a tungsten alloy and having fastening member mounting holes penetrating;
The shaft portion is inserted through the fastening member mounting hole, and the fastening portion formed at the end portion of the shaft portion includes a fastening member that protrudes to the outside of the lure body,
The fastening member mounting hole of the luer body is formed in a tapered shape, and the shaft portion of the fastening member is formed in a tapered shape along the fastening member mounting hole, so that the displacement of the luer body with respect to the fastening member is reduced. A lure characterized by a restricting engaging portion . The lure according to claim 1, wherein the fastening member is pressure-bonded to the luer body in the fastening member mounting hole. The lure according to claim 1 or 2, wherein the fastening member is bonded to the luer body in the fastening member mounting hole.

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