JP3635427B2 - Pseudo bait needle - Google Patents

Description

[0001]
[Industrial application fields]
The present invention has features such as long throwing, small landing sound and good sensitivity in water, and particularly suitable for use as a worm mounting jig head or as a main part of a pseudo food needle such as a rubber jig. It is about.
[0002]
[Prior art]
Lure fishing is due to its sportiness represented by words such as catch and release, or due to the fashionability of using beautifully colored pseudo bait instead of using live bait, fishing techniques that are becoming increasingly popular these days It has become.
[0003]
In lure fishing, a lure, that is, a pseudo bait needle, is an extremely important member whose quality is immediately reflected in the fishing results, and there are various lures with various ingenuity. The angler enjoys fishing by selecting the optimum lure in consideration of not only the difference in the target fish but also the weather, time, temperature, water quality, etc. at that time.
[0004]
There are various forms of lures as described above, and there are various classification methods. Among them, there is a so-called rubber jig that uses a bundle of a large number of rubber threads as a pseudo bait. This is manufactured by installing a bundled rubber thread on a portion (called a jig head) composed of a head portion and a hook needle.
In addition, only a “jig head” portion combining this head portion and a hanging needle is also available as an independent product. However, it is rarely used alone, and is usually used after installing a pseudo food body called a worm.
[0005]
The head part has a spindle shape, a spherical shape, and various other shapes. However, the head part is made of lead (or an alloy containing lead as a main component) and is made of a material that does not sink into water like a rubber jig. It is an indispensable member for the pseudo bait needle of the type that is included in advance or is used with a worm attached thereto. Also, the hanging needles are made of steel and are black-baked, plated, etc., and there are many places where rubbery threads are installed. And the formation of the head part and the hanging needle (both shall be referred to as “pseudo bait needle main part” together), set the hanging needle on the mold, molten metal (lead only or lead-based alloy) In general, it is produced by pouring, solidifying and taking out.
[0006]
[Problems to be solved by the invention]
That is, in the pseudo bait needle that uses a flexible rubber-like material such as a rubber jig or worm, the head part sinks immediately after landing, and the behavior at the time of reeling induces the fish effectively. Basically, it is preferable that the head portion itself is inconspicuous. The reason why lead is used exclusively without using iron is that lead has a larger specific gravity than iron, and a smaller volume is required to obtain a predetermined sedimentation capacity. This is because when the molten needle is poured after the molded hanging needle is placed in the mold, the melting temperature of lead is much lower than that of iron, so there is little possibility of adversely affecting the needle portion.
[0007]
However, even if lead is used, its volume is still large and its resistance in the air or water is large, so it feels dissatisfied that the flight distance does not come out, the landing sound is loud, the sensitivity in water is poor There were many people.
[0008]
[Means for Solving the Problems]
Therefore, the present inventor finally made the present invention as a result of intensive research for many years in view of the above points, and the feature thereof is a pseudo bait needle composed of a hanging needle and a head portion, and the head portion is made of a tungsten member. It is constituted by integrating the melt and the hanging needle is installed and fixed to the head portion by the integration.
[0009]
In other words, the present invention is most characterized in that tungsten is used as the material of the head portion. Tungsten, which has a specific gravity of 19.24 and a hardness of 7.0, is a very suitable material for simulated food compared to lead of a specific gravity of 11.34 and a hardness of 1.5. However, the method of melting and pouring into the mold cannot be used in the case of tungsten. This is because the melting point of tungsten is about 3400 °, which is orders of magnitude higher than that of lead, 327.4 °, and cannot flow through the mold, and the melting point of iron (the hook is made of iron) is 1530 °. Because it is higher.
[0010]
The present inventor has solved this problem by using a combination of a pre-molded tungsten portion and a melt as the head portion. In other words, after joining the tungsten members divided into two parts, a “melt” (metal or plastic having a low melting temperature such as tin or the like) is formed in a gap portion between the hole engraved for inclusion of the hanging needle and the hanging needle. ), Or a pre-molded tungsten member is provided with a hole through which the hanging needle can be inserted and fit into a predetermined position. The problem was solved by adopting a method of setting and then closing the hole with a melt. The present invention is not limited to a method for producing this tungsten portion, but is generally obtained by compression molding powdered tungsten.
[0011]
The tungsten member is integrated with a hanging needle inside, and this integration is completed by solidification of the injected melt. As this melt, a metal or plastic having a low melting temperature is employed. In addition, the melt is generally manufactured so as to cover not only the inside of the head portion but also the shaft portion of the hanging needle, and in this portion, a thick shaft portion such as a rubber thread installation portion in a rubber jig is generally formed. is there. Therefore, an injection mold that takes these into consideration is used when injecting the melt, but the structure is not limited at all.
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in more detail with reference to the drawings.
[0013]
FIG. 1 shows an example of a pseudo bait needle 1 (hereinafter referred to as “the present invention pseudo bait needle 1”) according to the present invention. The illustrated pseudo bait needle 1 of the present invention is a rubber jig, but its rubbery yarn bundle portion is not depicted. That is, the pseudo bait needle 1 of the present invention is composed of the hanging needle 2, the head portion 3, and the rubber thread bundle that is not depicted. Among them, the structure and material of the hanging needle 2 are the same as the hanging needle in the conventional rubber jig, and the locking portion 21 is provided on the shaft, and the rubber-like thread portion not drawn is actually Is fixed to the locking portion 21.
[0014]
As shown in FIG. 2, the head portion 3 has two divided pieces 31 made of tungsten (both of which are provided with a needle fitting groove 32 and a metal injection groove 33), and the hanging needle 2 is fitted therebetween. It is a member formed by fitting together. It seems that it is common to weld the two divided pieces 31 by welding, but other methods having an equivalent effect may be used. When the hanging needle 2 is fitted into the two divided pieces 31, the locking portion 21 and other thick shaft portions do not exist on the hanging needle 2, and there is a gap inside the head portion 3. doing.
[0015]
Next, what is in the state of FIG. 2 is fitted into a mold, and molten tin S is injected from the metal injection groove 33 to complete the present pseudo bait needle. FIG. 3 shows an example of a mold M to be used (actually, it is a mating mold, but only one of them is depicted in the figure).
[0016]
FIG. 4 shows another example relating to the structure of the head portion 3. Unlike the conventional ones, the tungsten member is not divided into two parts, and the main body portion 30 is obtained by compression molding powder tungsten. It is an integrally molded product. Further, the main body 30 is provided with a hole in a groove shape. The shape is one when viewed as a hole, but here, for convenience, a through-hole 34 that is formed in a cylindrical shape (two openings because it is a through-hole), An orthogonal hole 35 (there is only one opening) extending from the vicinity of the center of the through hole 34 to the surface of the main body 30 perpendicular to the length direction of the through hole 34, and one opening of the through hole 34 It is considered to be a combination with a communication groove 36 cut out so as to connect to the opening of the orthogonal hole 35.
[0017]
FIGS. 5A, 5B, and 5C schematically show an example of a method for manufacturing the pseudo bait needle 1 of the present invention using the head portion 3 of the example of FIG. The hanging needle 2 is inserted from the opening of the thirty through holes 34 [FIG. In the case of this example, the hook 2 has a long shaft portion 22, a hook portion 23, and a line locking portion 24 formed by bending an end portion of the shaft portion 22 at a substantially right angle and forming a ring portion. The tip portion of the hook portion 23 is inserted into the opening of the through hole 34 (the opening communicating with the communication groove 36), and the hook portion 23 is pushed in using the curved shape of the hook portion 23. Then, the hanging needle 2 is inserted [(b) in the figure]. Although the through hole 34 itself is not a large hole, there is no difficulty in the operation of accommodating the line locking portion 24 in the orthogonal hole 35 because of the communication groove 36.
[0018]
In a state where the hanging needle 2 is in a predetermined position in the main body 30, the hole is closed with molten tin S that is a molten material ((c) in the figure). Also in this example, the locking portion 21 and other thick shaft portions are formed on the hanging needle 2 as in the previous example, and molten tin S is injected using a mold (not shown) having a structure conforming thereto. Is done. Note that plastic may be used as a melt instead of tin. Then, if necessary, the surface is painted (not shown). In this state, the jig head for worm installation is completed. However, in the case of a rubber jig, a bundle of rubber threads is fixed (not shown).
[0019]
【The invention's effect】
As described above in detail, the pseudo bait needle according to the present invention is a pseudo bait needle composed of a hanging needle and a head part, and the head part is formed by integrating a tungsten member and a melt, and the hanging needle. The needle is installed and fixed to the head portion by the integration, and is an extremely advanced invention having the following effects.
[0020]
(1) Since the technique of integrating the preformed tungsten and the melt is used, tungsten having a high melting point can be easily employed.
(2) Since the head portion is made of tungsten, it is easy to reduce the size, and thus there is an effect that a flight distance is increased and a landing sound is small. In addition, because it has low resistance in water and high specific gravity, it is easy to grasp the feeling of bottoming, and the so-called “underwater sensitivity” that the shape of the bottom of the water is easy to grasp when an irregular action is taken with stones, etc. It also has an effect.
(3) Tungsten is also harder than lead or the like, so that it is difficult to deform, and the coated portion applied thereon is hard to break.
[Brief description of the drawings]
FIG. 1 is a schematic perspective view showing an example of a pseudo bait needle according to the present invention.
FIG. 2 is a schematic perspective view showing the structure of the head portion of the pseudo bait needle of the present invention.
FIG. 3 is a schematic perspective view showing an example of a mold for producing the pseudo bait needle of the present invention.
FIG. 4 is a schematic perspective view showing another example of the structure of the head portion of the pseudo bait needle of the present invention.
FIGS. 5A, 5B, and 5C are all schematic perspective views schematically showing an example of a method for producing the pseudo bait needle of the present invention using the head portion of the example of FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Pseudo bait needle 2 Hanging needle 21 Locking part 22 Shaft part 23 Hook part 24 Line locking part 3 Head part 30 Main part 31 Split piece 32 Needle fitting groove 33 Metal injection groove 34 Through hole 35 Orthogonal hole 36 Communication groove M Mold S Molten tin

Claims (5)

A pseudo bait needle composed of a hanging needle and a head portion, the head portion being constituted by integrating a tungsten member and a melt, and the hanging needle being installed and fixed to the head portion by the integration. A pseudo bait needle characterized by being. The pseudobait needle according to claim 1, wherein the melt is tin or an alloy mainly composed of tin. The pseudobait needle according to claim 1, wherein the melt is plastic. The head portion is formed by integrating a tungsten member having a shape divided into two parts and a melt, and a concave groove and a melt for installing the hanging needle are formed on the opposing surfaces of the head parts divided into two parts. The pseudo bait needle according to claim 1, 2 or 3, wherein a concave groove for injection is formed. The head portion is formed by integrating an integral tungsten member and a melt, and the tungsten member is perpendicular to the length direction of the through hole from one through hole and the vicinity of the center of the through hole. And an orthogonal hole that reaches the surface of the tungsten member, and a communication groove that is cut out so as to connect one opening of the through hole and the orthogonal hole opening. The pseudo bait needle according to 1, 2 or 3.

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