JP7320252B2 - lure - Google Patents

Description

TECHNICAL FIELD The present invention relates to a fishing lure, and more specifically, to a lure that is of a center-of-gravity-moving lure that extends the flight distance and improves the initial movement of the lure when it hits the water.

For example, lure fishing is gaining popularity among anglers as a means of catching fish that prey on small fish. Lure fishing in this case uses a lure with a hook imitating the shape of a small fish. The lure is connected at its front end (head) to a line drawn out from a reel attached to a rod, cast into the air by casting, and eventually lands on the water. When the reel is wound, the line is stretched and the lure is pulled, and the lure swims in the water like a small fish.

In order for the lure to swim by wagging its tail like a small fish alive in the water, the center of gravity of the lure must be at a predetermined position forward from the center of the lure when swimming. On the other hand, it may be desirable to cast the lure farther in order to land the lure on the water or to make the lure swim longer.

However, since the line is connected to the front end of the lure, if the lure's center of gravity is forward from the center, the lure will rotate so that the front part of the lure with the center of gravity is distal when cast, resulting in flight. There was a problem that the inside posture became unstable and the air resistance increased, and the flight distance did not increase. Therefore, center-of-gravity-shifting lures have been proposed and partially put into practical use (Patent Documents 1 to 3).

JP-A-2000-106802 JP-A-10-304791 JP 2015-173645 A

In Patent Document 1, a cylindrical space containing a weight is provided in the front and back direction of the lure, and a magnet is placed at the front end thereof. A lure is disclosed in which when the lure is pulled, the weight sticks to the magnet to hold it forward. However, with this lure, when the lure hits the water, the weight is positioned backward due to centrifugal force, and when the lure is pulled and the lure is pulled forward, the weight moves forward due to gravity and sticks to the magnet for the first time. . Therefore, it takes some time for the center of gravity (weight) to move forward after the lure lands on the water and for the lure to move naturally. Also, in order for the weight to move forward and stick to the magnet, the lure needs to be in a forward-down position. It could not be applied to a minnow-type lure with a small lip and poor water bite.

In Patent Document 2, magnets are arranged at the front and rear ends of a cylindrical space in the lure, and a magnetic force is arranged in the space in a direction repulsive to both the front magnet and the rear magnet. is disclosed. When casting, the centrifugal force overcomes the repulsive force of the magnet, and the magnet mass is positioned at the rear, increasing the casting distance. return to the position corresponding to When the lure is pulled in water, the change in acceleration causes the magnet weight to move and the position of the center of gravity of the lure to change, thereby causing irregular movement (paragraph 0011). However, when this lure is pulled in water, the magnet weight floats in the rail, and the concept is different from that of holding the center of gravity forward. In addition, since it is necessary to use a magnet weight, it is not possible to use a weight with a high specific gravity such as tungsten, and the flight distance cannot be extended much.

Patent Literature 3 discloses a lure in which a compression coil spring biases a weight forward in a tubular space provided in the lure. During casting, the centrifugal force overcomes the urging force of the compression coil spring, causing the weight to move rearward and extend the flight distance. However, since this lure uses a compression coil spring to move the center of gravity, there is a problem that the number of parts is large, the structure is complicated, and the performance is lowered due to deterioration of the spring. Further, in this lure, a guide wire passes through both the weight and the compression coil spring in the axial direction, and the weight can only be moved within a linear rail. Therefore, the rail cannot be routed under the lure (ventral side) while avoiding the attachment portion of the hook, and there is a limit to achieving a low center of gravity.

Therefore, the object of the present invention is to move the cone to the rear of the lure during casting to increase the flight distance, and even in the case of a lure with no lip or a small lip, the cone moves forward when landing on the water and immediately catches the fish. To provide a center-of-gravity moving lure capable of such natural movement. Another object of the present invention is to provide a mechanism for moving the center of gravity of a lure which has a simple structure, high assembly accuracy, and improved versatility and flexibility.

The present invention relates to a center-of-gravity-moving minnow-type lure comprising a main body having a guide space for holding a cone slidably in the front-rear direction, and magnets respectively arranged at the front and rear ends of the guide space. The most important feature is that the cone is magnetized so that it attracts the magnet at the front end of the guide space and repels the magnet at the rear end of the guide space. do.

In this lure, the cone encloses a weight body, two magnets arranged in front and behind the weight body, and the weight body and the two magnets, and slides in the guide space in the front-rear direction. It is useful to have a case.

In this case, the case is preferably made of polyacetal (POM) and has a cylindrical case body and a lid press-fitted to the case body.

A modification of the invention is characterized in that the guide space is curved and/or has different inner diameters depending on its longitudinal position.

When casting the lure of the present invention, the centrifugal force overcomes the repulsive force of the magnet, the cone moves to the rear side of the lure to extend the flight distance, and the repulsive force of the rear magnet immediately before the centrifugal force weakens. , the cone moves forward and is attracted to the front magnet, and the cone is fixed at a desired position, and when the lure lands on the water, the lure takes a desired posture, and the reel can be reeled and swam with a quick rise.

In addition, by constructing the cone from a weight body in a case and two magnets at the front and back, instead of using a magnet as the weight, a metal member with a high specific gravity such as tungsten can be used, so that the casting distance of the lure can be extended. can be done. In addition, since a cone can be created by inserting a weight and a magnet into a polyacetal (POM) case and press-fitting the lid, high-precision assembly can be easily performed manually without using any jigs or equipment. can. Here, POM is especially superior in strength compared to ordinary plastics, and has high abrasion resistance and impact resistance due to its sticky physical properties. is prevented.

In the modified example of the present invention, it is possible to bend the trajectory of the guide space. Therefore, while avoiding the hook mounting portion of the lure, etc., the guide space is arranged on the belly side (lower side) of the lure as much as possible. to lower the center of gravity.

FIG. 1 is a vertical sectional view of a lure according to one embodiment of the present invention. FIG. 2 is an exploded view of cone 12 shown in FIG. FIG. 3 is a cross-sectional view of the lure showing an embodiment of the guide space 10a. FIG. 4 is a longitudinal cross-sectional view of a lure according to another embodiment of the invention.

Modes for carrying out the present invention will be described in detail below with reference to the accompanying drawings. FIG. 1 is a longitudinal sectional view of a center-of-gravity moving lure according to one embodiment of the present invention. This lure is a minnow-type lure imitating a small fish, and comprises a lure body 2, line eyes 4, two hook eyes 6, and a center-of-gravity moving system 10. - 特許庁In this figure, the left side is the front of the lure, and the right side is the rear. The line eye 4 is provided at the front end of the lure, and the hook eye 6 is provided at the lower central portion (abdominal side) and the rear end of the lure.

The lure body 2 is preferably formed by molding a synthetic resin, and the lure is constructed by bonding symmetrical left and right body pieces (FIG. 1 shows the right body piece) to each other. The line eye 4 and the hook eye 6 are formed by bending a metal wire to form two annular portions. By joining the left and right body pieces, the other annular portion 4a is fixed in a state of being exposed to the outside. The lure body 2 may be hollow, or may be solid except for a recess for arranging a guide space 10a of the center-of-gravity moving system 10 described later and other components. As long as this condition is satisfied, the lure body 2 may be made of wood or metal material.

The center-of-gravity moving system 10 includes a guide space 10a configured in the front-rear direction of the lure, magnets 22 and 24 respectively arranged at the front and rear ends of the guide space 10a, and a cone 12 arranged within the guide space 10a. equip. FIG. 2 is an exploded view showing details of cone 12 . The cone 12 includes a cylindrical case 12a, a weight 14, two magnets 16 and 18 arranged on both sides of the weight 14, and a lid 12b press-fitted to the case 12a. The case 12a and lid 12b are made of plastic, preferably by molding polyacetal (POM). POM is particularly strong among plastics, and has high abrasion resistance and impact resistance due to its sticky physical properties. Therefore, it prevents damage and cracks from occurring even when reciprocating motion is repeated between the ends of the guide space 10a. can be done. The case 12a and the weight 14 and the magnets 16, 18 enclosed therein are desirably sized so that the weight 14 and the magnets 16, 18 inside do not move when the lid 12b is fitted.

Here, the magnets 16 and 18 on both sides of the cone 12 attract each other with the magnet 22 at the front end of the guide space 10a and repel the magnet 24 at the rear end of the guide space 10a. They are accommodated in the case 12a in a matching orientation. That is, the magnet 16 on the front side of the cone 12 and the magnet 22 on the front end of the guide space 10a face each other with different polarities (one is N pole and the other is S pole), and the magnet 18 on the rear side of the cone 12 faces each other. The magnets 24 at the rear end of the guide space 10a are configured to face each other with the same polarity (N poles or S poles). With this configuration, when the lure is cast, the centrifugal force overcomes the repulsive force of the magnet, and the cone 12 moves to the rear end of the guide space 10a, and the center of gravity is on the side opposite to the side where the lure is connected to the line. Because it is located at the tail end, the flight distance is extended. On the other hand, when the centrifugal force disappears and the cone 12 lands on the water, the cone 12 is pushed forward by the repulsive force of the magnet. As a result, when it lands on the water, it assumes a natural posture and can immediately start swimming.

Neodymium magnets can be preferably used for the magnets 16, 18, 22, 24 used in the lure of the present invention. Although various materials can be used for the weight 14, a tungsten alloy having a high specific gravity and high hardness can be preferably used. In this case, by changing the material and composition of the alloy, it is possible to create weights of the same size, for example, 3 g, 5 g, and 10 g. can enhance sexuality. Further, as shown in FIG. 2, the magnet 16, the weight 14, and the magnet 18 are inserted in order into a plastic (POM) case, and the lid 12b is press-fitted to form the cone 12. Highly accurate assembly can be easily performed manually without using any equipment.

FIG. 3 is a cross-sectional view of the lure showing an embodiment of the guide space 10a. In this figure, the dotted line indicates the position of the cone 12 sliding in the guide space 10a. In the embodiment shown in FIG. 3(a), the guide space 10a is completely surrounded by plastic material in the circumferential direction. In the embodiment shown in FIG. 3(b), the guide space 10a is not entirely surrounded by material in the circumferential direction, and only the minimum portion is constrained so that the cone 12 cannot move in any direction other than the longitudinal direction. constitutes the guide space. With this configuration, the amount of plastic material can be reduced, and the weight and cost of the lure can be reduced. Although the guide space 10a shown in FIGS. 1 and 3 is arranged on the lowermost side (ventral side) of the lure to lower the center of gravity, it does not necessarily have to be at this position in other embodiments. It is desirable that the rear end of the guide space 10a is close to the rear end of the lure, but the length of the guide space 10a, that is, the position of the front end of the guide space 10a depends on where the center of gravity of the lure after landing on the water is desirable. It can be determined by design reasons.

FIG. 4 is a longitudinal cross-sectional view of a lure according to another embodiment of the invention. In the embodiment shown in this figure, the guide space 30 is not straight, but curved in its middle to avoid further hook attachments. As shown, the curved portion of the guide space 30 has an inner diameter different from that of the other portions so that the cone 12 (not shown in this figure) can easily correct its direction. With this configuration, even if the lure is provided with the third hook eye 40 in addition to the hook eyes 36 and 38, the guide space 30 can be arranged as downward (ventral) as possible. Note that the cone 12 in this embodiment does not have to be cylindrical as shown in FIGS. 1 and 2, and may be cocoon-shaped, for example. Furthermore, although the front end and the rear end of the guide space 30 have substantially the same inner diameter in FIG. 4, the front end of the guide space 30 may have a larger inner diameter than the rear end, or vice versa.

Although the embodiments for carrying out the present invention have been described in detail above, the scope of the present invention is not limited to the illustrated and described embodiments, and can be implemented in various other modifications. For example, although a minnow-type lure was used in the drawings, the lure of the present invention does not necessarily have to be a minnow-type lure, and can be applied to various lures such as sinking pencils and topwaters. Furthermore, the present invention can also be applied to rubber jigs and soft lures where it is desirable that the center of gravity moves backward when casting and is forward when landing on the water, as long as it comes to terms with other design conditions.

INDUSTRIAL APPLICABILITY The present invention can be used in the field of lure fishing using artificial baits in lakes, ponds, rivers and seas.

2 lure body 4 line eye 6, 36, 38, 40 hook eye 10 center of gravity movement system 10a, 30 guide space 12 cone 12a case 12b lid 14 weight 16, 18, 22, 24, 32, 34 magnet

Claims (4)

It is a center-of-gravity moving type lure,
a main body having a guide space for slidably holding the weight in the front-rear direction of the lure;
and magnets respectively arranged at the front and rear ends of the guide space,
Magnetism is imparted to the weight so that it attracts a magnet at the front end of the guide space and repels a magnet at the rear end of the guide space ,
A lure , wherein the guide space is curved . In the lure of claim 1,
The weight includes a weight body, two magnets arranged in front and behind the weight body, and a case that encloses the weight body and the two magnets and slides in the guide space in the front-rear direction. A lure characterized by being able to catch. 3. The lure according to claim 2, wherein said case is made of polyacetal (POM) and comprises a cylindrical case body and a lid press-fitted to said case body. 4. The lure according to any one of claims 1 to 3, wherein said guide space has different inner diameters depending on its longitudinal position.

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