Metal artificial bait

By integrating a ring holder slot and U-shaped ends for consistent welding and using martensitic or ferritic stainless steel, the metal bait lures address environmental corrosion and ensure strong, durable, and visually appealing connections.

CN120322151APending Publication Date: 2025-07-15AOMORI HOEI INDUSTRIES LTD
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Patent Information

Application Number
CN202480002996.1
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Priority Date
2023-11-14
Filing Date
2024-07-17
Publication Date
2025-07-15

AI Technical Summary

Technical Problem

In the prior art, metal baits are insufficient in welding wire rings, and are prone to rust in water or seawater for a long time, which has environmental pollution problems.

Method used

Set rings and grooves on the main body of metal bait, use stamping molds to form rings, and use Martensite or ferrite stainless steel material to weld the rings through TIG welding machine to ensure that the welding parts are beautiful and constant.

Benefits of technology

It improves the strength and aesthetics of the welded parts, while reducing the risk of environmental pollution and adapts to the corrosion resistance needs of long-term use in water.

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Abstract

The present invention proposes a welded structure which reliably has sufficient strength when a ring for mounting a fishing line or a fishhook is welded to a main body, and also proposes a metal artificial bait which is environmentally friendly even when placed in water or seawater. A metal artificial bait for artificial bait fishing, the metal artificial bait being characterized by comprising: a main body; the main body is provided with a ring installation groove for accommodating the ring, the ring is installed on the main body by welding in a state of being accommodated in the ring installation groove, and the main body and the ring are made of martensitic stainless steel or ferritic stainless steel.
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Description

Technical Field

[0001] The present invention relates to a metal fishing lure for artificial bait fishing, and more particularly to a metal fishing lure in which a loop for attaching a fishing line or a fishing hook is welded to a main body. Background Art

[0002] Regarding artificial bait fishing, various artificial baits are commercially available, from those that swim near the surface of the water to those that swim near the bottom of lakes and the seabed. Artificial baits are distinguished according to the depth of water where the target fish live, and are made of various raw materials such as materials lighter than the specific gravity of water to metals heavier than the specific gravity of water.

[0003] From the perspective of the depth of water used, artificial baits designed for shallow areas are called shallow types, and those designed for deep areas are called deep types. Here, in rivers, seas, lakes, etc., areas with shallow water depth are called shallow banks, and areas with deep water depth are called deep banks. An artificial bait called a metal jig, which is composed only of metals such as lead, iron, tungsten, and aluminum, has a large weight because its interior is also metal, and has excellent long-distance casting performance. In addition, the metal jig also has the advantages of high strength and durability. Since the metal jig has a large specific gravity, it has a fast sinking speed after hitting the water and is mostly used underwater, mainly for deep bank applications.

[0004] Here, as a method of fixing a line loop for attaching a fishing line to an artificial bait main body, there are various methods. Patent Document 1 shows the structure of an artificial bait having a resin main body portion. Among them, a structure composed of a resin member corresponding to the main body portion of the artificial bait and a metal plate provided on the abdomen of the main body portion is disclosed. A fishing line locking portion for attaching a fishing line is formed integrally with the metal plate by welding or the like.

[0005] Patent Document 2 shows the structure of an artificial bait having a metal main body portion. The artificial bait main body 11 only needs to have a strength capable of withstanding casting, a specific gravity greater than that of water, and be composed of a hard raw material, preferably composed of a metal material, and most preferably made of stainless steel that is rust-free, harmless, and has durability. The fishing line locking portion 2 only needs to have a strength capable of connecting the fishing line to the artificial bait main body 11 during casting and holding the fishing target, and is made of a metal raw material such as stainless steel, for example. The fishing line locking portion 2 is connected to the artificial bait main body 11 by welding.

[0006] Prior Art Documents

[0007] Patent Documents

[0008] Patent Document 1: Japanese Patent Laid-Open No. 2000-245305

[0009] Patent Document 2: Japanese Patent Laid-Open No. 2015-084670 Summary of the Invention

[0010] Problems to be Solved by the Invention

[0011] In Patent Document 1 and Patent Document 2, as a method of fixing a loop for installing a fishing line to a main body, only fixing by welding is described. However, since metal lures are mainly used for long casting, the connecting portion between the loop and the heavy main body must have sufficient strength. In addition, as described in Patent Document 2, most metal lures use stainless steel that is rust-free, harmless, and has durability as the material. However, since the lures are left in water or seawater due to snagging etc., and remain there semi-permanently, there are environmental problems.

[0012] The present invention has been completed in order to address the above problems, and its object is to provide a welding structure that reliably gives sufficient strength to the loop and the main body, and to provide a metal lure that is environmentally friendly even when placed in water or seawater.

[0013] Means for Solving the Problems

[0014] (1) In order to solve the above problems, the present invention is a metal lure for lure fishing, characterized in that

[0015] the metal lure includes:

[0016] a main body; and

[0017] a loop for installing a fishing line or a fishing hook,

[0018] a loop setting groove for accommodating the loop is provided in the main body,

[0019] the loop is installed on the main body by welding in a state of being accommodated in the loop setting groove.

[0020] By providing a loop setting groove capable of accommodating the loop in the main body of the metal lure of the present invention, welding can be performed in a state where the loop is accommodated and held at a predetermined position of the main body, so the welding operation becomes easy. In addition, welding can be performed in a state where the positional relationship between the loop and the main body is always constant. Therefore, the appearance of the welded portion of each metal lure can be a constant and beautiful circle, and the quality of the welding of each metal lure can be kept constant.

[0021] (2) It is characterized in that the shape of the loop before welding is U-shaped, and both end portions of the U-shaped loop have portions that function as filler metal when welding the loop to the main body.

[0022] Since the end portions of the loop function as filler metal for joining the loop and the main body, the welding operation becomes easy, and a circular and beautiful welded portion can be formed.

[0023] (3) It is characterized in that the ring setting groove is formed by a stamping die.

[0024] The ring setting groove can also be made using a lathe, a milling machine, etc. However, by using a stamping die, uniform ring setting grooves can be efficiently set on the main body.

[0025] (4) It is characterized in that the materials of the main body and the ring are martensitic stainless steel or ferritic stainless steel.

[0026] As the material of the metal fishing lure, stainless steel is mostly used. This is because stainless steel has high corrosion resistance, is not easy to rust even when used in water or seawater, and is easy to process. However, on the other hand, when it is in a state of being placed in water or seawater due to snagging, etc. during fishing, it remains in water or seawater semi-permanently like this, becoming an environmental problem. Stainless steel has austenitic, martensitic, and ferritic systems, and the austenitic system has high corrosion resistance. The corrosion resistance of the martensitic and ferritic systems is lower than that of the austenitic system. Therefore, when placed in water or seawater, they both disappear due to rusting. Metal fishing lures made of martensitic and ferritic stainless steel can meet the needs of users who consider the environment.

[0027] Advantages of the Invention

[0028] According to the present invention, in the production of metal fishing lures, by providing a ring setting groove on the main body for accommodating the ring, welding can be carried out while the ring is held in the ring setting groove. Therefore, the welding operation becomes easy, and the welding quality of each metal fishing lure can be maintained constant. In addition, by using martensitic or ferritic stainless steel as the material of the metal fishing lure, it can meet the needs of users who consider the environment. Description of the Drawings

[0029] Figure 1 (a) in shows the front view of the metal fishing lure of the present invention, Figure 1 (b) in shows the top view of the metal fishing lure of the present invention.

[0030] Figure 2 (a) in is the perspective view of the blank of the metal fishing lure of the present invention, Figure 2 (b) in is from Figure 2 the perspective view of a cut piece of a metal fishing lure cut from the blank in (a) in, Figure 2 (c) in is from Figure 2 the perspective view of an elongated oval workpiece processed into a fish shape from the cut piece in (b) in, Figure 2 (d) in shows the schematic diagram of the situation where a ring setting groove is provided on the side surface of the elongated oval workpiece in (c) in by using a stamping die. Figure 2 ​

[0031] Figure 3 In (a) of [reference], Figure 2 is a perspective view of an oblong workpiece with a ring setting groove provided on the side surface by a stamping die in (d) of [reference], Figure 3 In (b) of [reference], Figure 3 is a perspective view of the main body completed by chamfering the head and tail of the surface part and the back part of the oblong workpiece in (a) of [reference], Figure 3 In (c) of [reference], Figure 3 is a schematic diagram showing a state where a ring is accommodated in the ring setting groove of the main body in (b) of [reference] and welded using a TIG welding machine, Figure 3 In (d) of [reference],

[0032] Figure 4 In (a) of [reference], Figure 4 is a front view of a metal fishing lure according to another embodiment of the present invention, Figure 4 In (b) of [reference], Figure 4 is a schematic diagram showing a state where a ring is accommodated in the ring setting groove on the side surface of the abdomen of the main body in (b) of [reference] and welded using a TIG welding machine, Figure 4 In (d) of [reference], Detailed Embodiment

[0033] Hereinafter, embodiments of the metal fishing lure of the present invention will be described with reference to the accompanying drawings. It should be noted that in each figure, the same parts are denoted by the same reference numerals.

[0034] Figure 1 In (a) of [reference], Figure 1 shows a front view of the metal fishing lure 1 of the present invention. As Figure 1 shown in (a) of [reference], the metal fishing lure 1 includes at least a metal main body 10, a line ring 11A for installing a fishing line 21, and a hook ring 11B for installing a fishing hook. The surface part 10-1 and the back part 10-2 of the main body 10 (refer to

[0035] In (b) of [reference]) Figure 3 are shaped like a fish and function as a mimic bait, i.e., a fishing lure, and fish patterns are painted on each surface. Figure 1In (a) thereof, one wire loop 11A and one hook loop 11B are respectively provided at the head 10-5 and the tail 10-6 of the main body 10. It should be noted that the shapes of the wire loop 11A and the hook loop 11B may also be in the shapes of Π or Ω similar to the Greek letters.

[0036] Figure 1 (b) thereof shows a top view of the metal imitation bait 1 of the present invention. The metal imitation bait 1 of the present invention is made by cutting a metal slab stock. Therefore, the thickness of the side surface portion 10-3 except for the head 10-5 and the tail 10-6 remains the same as the thickness of the slab stock. The wire loop 11A is welded to the head 10-5 in a state of being accommodated in the loop setting groove 15A, and the welded portion 12A is a beautiful circular shape with a slightly raised center portion. The hook loop 11B is welded to the tail 10-6 in a state of being accommodated in the loop setting groove 15B, and the welded portion 12B is a beautiful circular shape with a slightly raised center portion. Regarding the operation of welding the wire loop 11A to the main body 10, it will be described later using Figure 3 (c) thereof.

[0037] Hereinafter, with reference to Figure 2 (a) to Figure 3 (d) thereof, an example of the manufacturing process of the metal imitation bait 1 of the present invention will be described.

[0038] Figure 2 (a) thereof shows a slab stock 30 which is a commercially available product for manufacturing the metal imitation bait 1. The size of the slab stock 30 is, for example, 1000 mm in length, 2000 mm in width, and 10 mm in thickness. The thickness of the metal imitation bait 1, that is, the thickness of the side surface portion 10-3, may be the same as the thickness of the commercially available product. Generally, when the thickness of the commercially available slab stock is less than 10 mm, a specification with a scale in units of 1 mm can be used, and when it is 10 mm or more, specifications of 12 mm, 15 mm, 16 mm, 18 mm, and 20 mm can be used.

[0039] Figure 2 (b) thereof shows a cut piece 31 of the size for manufacturing one metal imitation bait 1. The size of the cut piece 31 is, for example, 20 mm in length, 170 mm in width, and 10 mm in thickness. Cutting out the cut piece 31 from the slab stock 30 is performed by shearing, sawing, etc. Shearing refers to a method of making the material abut against an anti-direction gauge positioned at the cutting size and lowering the upper blade for cutting according to the same principle as cutting paper with scissors, and sawing refers to a method of cutting the material by rotating a circular saw blade using an electric motor.

[0040] The material of the metal lure 1 can be selected from lead, zinc, tin, brass, stainless steel, iron, titanium, tungsten, etc., but mostly stainless steel which has no impact on the ecosystem and is not prone to rusting problems is used. Stainless steel has austenitic, martensitic, and ferritic systems, and among them, the austenitic system has high corrosion resistance. Compared with the austenitic system, the martensitic and ferritic systems have reduced corrosion resistance. Therefore, when the lure is in a state of being placed in water or seawater due to snagging or the like during fishing, it will disappear due to rusting. It can be said that the metal lures using martensitic and ferritic stainless steels meet the users who consider the environment. As martensitic stainless steel, specifically, SUS403, 410, 420, etc., and as ferritic stainless steel, specifically, SUS430, 410L, etc.

[0041] Figure 2 (c) therein shows the long oval workpiece 32 processed from the cutting piece 31 into a fish shape. In the long oval workpiece 32, as the side surface part 32-3 of the thickness part, the thickness of the blank 30 is kept unchanged, and the surface part 32-1 and the back surface part 32-2 formed as the body side part of the fish are processed into a long oval shape similar to the fish shape.

[0042] Figure 2 (d) therein shows the state where the ring setting grooves 15A(15B) are provided in the side surface part 32-3 of the long oval workpiece 32 by the stamping die 40. The stamping die 40 is divided into two parts, the upper die 41A and the lower die 41B. The side surface part 32-3 of the long oval workpiece 32 is arranged therebetween, and the side surface part 32-3 is stamped from the upper and lower opposite sides. When welding the ring 11A(11B) (refer to Figure 3 (c) therein) to the main body 10, the ring setting grooves 15A(15B) can accommodate the ring at a definite position of the main body 10, so welding is easy, and furthermore, the welding quality of each lure including the installation position of the ring to the main body can be kept constant. The ring setting grooves 15A(15B) can also be made using a lathe, a milling machine, etc., but considering the small size of the grooves and the manufacturing time, using a stamping die is the most efficient.

[0043] Figure 3 (a) therein shows the ring setting groove 15A and the ring setting groove 15B provided in the side surface part 32-3 of the long oval workpiece 32 by the stamping die 40. When the rings 11A, 11B are accommodated in the ring setting groove 15A, the ring setting groove 15B, the bottom of the ring setting groove is formed into a width for slightly expanding the main body part of the U-shaped ring, and preferably, it is formed into a structure where the rings 11A, 11B are supported by the ring setting grooves 15A, 15B. Thereby, it is possible to prevent the ring from moving or falling from the ring setting groove during the welding operation.

[0044] Figure 3(b) in shows the main body 10 completed by chamfering the head 10-5 and the tail 10-6 of the surface portion 32-1 and the back surface portion 32-2 of the long elliptical workpiece 32. Chamfering the head 10-5 and the tail 10-6 is to make the shape of the metal fishing lure 1 more similar to that of a fish.

[0045] Figure 3 (c) in shows a state where the rings 11A and 11B are accommodated in the ring setting grooves 15A and 15B of the main body 10 and welded using a TIG welding machine 50. In Figure 3 (c), the portion that functions as filler metal during welding of the rings extends from both ends of the U-shaped ring in a substantially right-angled direction. Regarding this shape, when the rings 11A and 11B are accommodated in the ring setting grooves 15A and 15B, the portion that functions as filler metal during welding of the rings is formed to face the direction of the TIG welding machine 50. In this state, the arc of the TIG welding machine 50 can be effectively concentrated on the portion that functions as filler metal, so that a beautiful circular welded portion can be finely processed. Two welds are made on the ring 11A and two welds are made on the ring 11B, and a total of four welds are made to form one metal fishing lure.

[0046] Figure 3 (d) in shows the metal fishing lure before painting after installing the rings 11A and 11B on the main body 10 by TIG welding. After that, the surface is painted to make the finished product. The painting of the metal fishing lure includes substrate treatment and formal painting. In the substrate treatment, in order to make the adhesion of the paint good, for example, the outer surface of the fishing lure is ground to make the surface moderately rough or a primer is applied. Then, in the formal painting, for example, marks and patterns are drawn on the surface of the fishing lure using polyurethane paint, and eyeballs are pasted using an epoxy-based adhesive. Through painting, the metal fishing lure 1 is completed.

[0047] Figure 4 (a) in shows a metal fishing lure according to another embodiment of the present invention. In this other embodiment, one more part for installing the fishing hook 22 is added to the side surface portion 10-3 of the abdomen 10-7.

[0048] Figure 4 (b) is a view showing a ring setting groove 15C for the hook ring 11C provided on the side surface portion 10-3 of the abdomen 10-7. The ring setting groove 15C is formed with two grooves in such a way as to accommodate both ends of the U-shaped ring of the ring 11C (refer to Figure 4 (c)). The ring setting groove 15C is formed on the side surface portion 10-3 of the abdomen 10-7 of the main body 10 using a stamping die in the same way as the other ring setting grooves 15A and 15B.

[0049] Figure 4 In (c), a state is shown where the snap ring 11C is received in the ring setting groove 15C of the main body 10 and welded using a TIG welding machine 50. The portions that function as filler metal face upward in a U-shape at both ends of the inverted U-shaped snap ring 11C. By concentrating the arc of the TIG welding machine 50 on the portions that face upward in a U-shape, a beautiful circular welded portion is formed.

[0050] Figure 4 In (d), a pre-painting metal artificial lure is shown where the rings 11A, 11B, and 11C are mounted on the side surface portion 10-3 of the main body 10 by TIG welding. After that, the surface is painted to produce a finished product. It should be noted that in another embodiment of the present invention, two snap rings are provided, but three or more can also be provided, and the positions where they are provided can be freely selected.

[0051] Explanation of Reference Numerals

[0052] 1: Metal artificial lure;

[0053] 10: Main body;

[0054] 10-1: Surface portion;

[0055] 10-2: Back surface portion;

[0056] 10-3: Side surface portion;

[0057] 10-5: Head;

[0058] 10-6: Tail;

[0059] 10-7: Abdomen;

[0060] 11A: Line ring;

[0061] 11B, 11C: Snap rings;

[0062] 12A, 12B, 12C: Welded portions;

[0063] 15A, 15B, 15C: Ring setting grooves;

[0064] 21: Fishing line;

[0065] 22: Fishing hook;

[0066] 30: Slab blank;

[0067] 31: Cutting piece;

[0068] 32: Oval processed piece;

[0069] 32-1: Surface portion;

[0070] 32-2: Back surface portion;

[0071] 32-3: Side face;

[0072] 40: Stamping die;

[0073] 41A: Upper die;

[0074] 41B: Lower die;

[0075] 50: TIG welding machine.

Claims

1. A metal artificial lure for artificial lure fishing, characterized in that the metal artificial lure comprises: a main body; and a loop for installing a fishing line or a fishing hook, a loop setting groove for accommodating the loop is provided in the main body, the loop is installed on the main body by welding in a state of being accommodated in the loop setting groove.

2. The metal artificial lure according to claim 1, characterized in that, The shape of the loop before welding is U-shaped, and both ends of the U-shaped loop have portions that function as filler metal when welding the loop to the main body.

3. The metal artificial lure according to claim 1, wherein, The loop setting groove is formed by a stamping die.

4. The metal artificial lure according to claim 1, characterized in that, The materials of the main body and the loop are martensitic stainless steel or ferritic stainless steel.

Citation Information

Patent Citations

  • Method for attaching eye to metal jig, method for producing metal jig by using the method, and the metal jig

    JP2011130676A