阅读说明：本技术 拟饵 (Artificial bait ) 是由 山根卓朗 川崎辰朗 于 2021-05-10 设计创作，主要内容包括：本发明提供一种拟饵。拟饵(2)具有：拟饵本体(4),其为中空且具有前部的头部(16)和后部的尾部(18)；配重体(10),其以能沿前后方向移动的方式被内置于所述拟饵本体(4)的内部；引导部件,其内置于所述拟饵本体(4),用于引导所述配重体(10)在前后方向上的移动；和弹性部件(12),其内置于所述拟饵本体(4),用于对所述配重体(10)向前方施力。所述配重体(10)构成为能克服所述弹性部件(12)的施加力而向后方移动。所述配重体(10)和所述弹性部件(12)中的一方进入另一方的内侧。据此,本发明的拟饵具有能在有限范围内进行最大限度的重心移动的重心移动机构且实现了优异的空中姿势和水中姿势。(The invention provides a kind of artificial bait. The lure (2) has: a lure body (4) which is hollow and has a front head (16) and a rear tail (18); a weight body (10) which is built in the lure body (4) so as to be movable in the front-rear direction; a guide member, built in the lure body (4), for guiding movement of the weight body (10) in the front-rear direction; and an elastic member (12) which is provided in the lure body (4) and applies a force to the weight body (10) in the forward direction. The weight body (10) is configured to be movable rearward against the urging force of the elastic member (12). One of the weight body (10) and the elastic member (12) enters the other. Accordingly, the lure according to the present invention has a center of gravity shifting mechanism capable of performing maximum center of gravity shifting within a limited range and realizes excellent air posture and underwater posture.)

1. A kind of artificial bait is characterized in that,

comprises a lure body, a weight body, a guide member and an elastic member, wherein,

the artificial bait body is hollow and is provided with a head part at the front part and a tail part at the rear part;

the counterweight body is arranged in the inside of the artificial bait body in a way of moving along the front-back direction;

the guide member is built in the lure body for guiding the movement of the weight body in the front-rear direction;

the elastic component is arranged in the artificial bait body and is used for applying force to the counterweight body forwards,

the weight body is configured to be movable rearward against the urging force of the elastic member,

one of the weight body and the elastic member enters the other.

2. The lure according to claim 1,

the counterweight body is provided with an accommodating space, and the elastic component enters the accommodating space.

3. The lure according to claim 2,

an inlet to the receiving space is provided at a front or rear portion of the weight body.

4. The lure according to claim 2 or 3,

the receiving space is a hole or a groove.

5. The lure according to claim 1,

the elastic component is a coil spring, and the counterweight body enters the inner side of the coil spring.

6. The lure according to any one of claims 1 to 5,

the elastic member has a 1 st point and a 2 nd point, wherein,

the 1 st point is connected with the artificial bait body;

the 2 nd point is located behind the 1 st point and is connected to the weight,

the elastic member is stretched by the weight body moving rearward when thrown out.

7. The lure according to claim 6,

the ratio F/W of the maximum application force F of the elastic member to the weight W of the weight body is 1.0 to 4.0.

8. The lure according to any one of claims 1 to 5,

the elastic member has a 1 st point and a 2 nd point, wherein,

the 1 st point is connected with the artificial bait body;

the 2 nd point is located forward of the 1 st point and is connected to the weight,

the elastic member is compressed by the weight body moving rearward when thrown out.

9. The lure according to claim 8,

the ratio F/W of the maximum application force F of the elastic member to the weight W of the weight body is 1.0 to 4.0.

10. The lure according to any one of claims 1 to 9,

the density of the counterweight body is 18.0g/cm³The above.

11. The lure according to any one of claims 1 to 10,

the guide member is attached to the lure body and penetrates the weight body in the front-rear direction.

Technical Field

The present invention relates to a lure for fishing (lure).

Background

Large-sized fish such as micropterus salmoides, Seriola quinqueradiata, and its young fish and weever prey on small fish. These large fish are called fish eaters (fish eaters). As a method of capturing fish-eating fish, lure fishing (lure fishing) is widely used. In the bait-simulating fishing method, a bait (bait) such as a suspected small fish is used. The lure flies in the air by being thrown (cast), and soon falls into the water. The lure is made to swim in water by winding a fishing line. The artificial bait is mistaken for a fish-eating fish bite artificial bait. The fishhook attached to the lure is inserted into the fish-eating fish to thereby fish the fish-eating fish.

The general artificial bait has an artificial bait body and a weight body built in the artificial bait body. The position of the weight body affects the posture of the lure in flight. The lure having the weight body position set so as to be appropriate in posture during flight is likely to fly to a remote place. In addition, the position of the weight body affects the posture of the lure in water. The lure having the weight position set so as to have an appropriate posture in water attracts fish-eating fish. The artificial bait can realize high hook-up rate.

Japanese patent laid-open publication Nos. 2011-229423 and 2015-173645 disclose baits having a mechanism for moving the center of gravity. A weight body and a compression coil spring are arranged in the lure body of the lure, wherein the weight body can move along the long side direction (front-back direction) of the lure; the compression coil spring is positioned at the tail side of the counterweight body and applies force to the counterweight body towards the head direction. When the lure is thrown, the weight body is moved to the tail side by compressing the compression coil spring by inertia. When the lure falls into the water, the weight body is pushed back to the head side by compressing the coil spring. By the movement of the weight body, the proper posture of the lure in flight and the proper posture in water can be realized.

Japanese patent laid-open publication No. 2011-229423 also discloses a lure having a weight body and a tension coil spring built therein, wherein the weight body is movable in a longitudinal direction (front-rear direction) of the lure; the tension coil spring is located on the head side of the weight body and applies force to the weight body in the head direction. When the lure is thrown, the weight body moves to the tail side by elongating the tension coil spring due to inertia. When the lure falls into the water, the weight body is pulled back to the head side by the tension coil spring. By the movement of the weight body, the proper posture of the lure in flight and the proper posture and action in water can be realized.

[ Prior art documents ]

[ patent document ]

Patent document 1: japanese patent laid-open publication No. 2011-229423

Patent document 2: japanese patent laid-open publication No. 2015-173645

Disclosure of Invention

[ problem to be solved by the invention ]

In the lure in which the coil spring is disposed on the tail side of the weight body, the compression spring acts as an obstacle, and the weight body cannot move to the end portion on the tail side. This may result in a situation where an appropriate attitude in flight cannot be achieved. Further, even if the coil spring is disposed on either the tail side or the head side of the weight, the weight and the coil spring are arranged side by side, and therefore, the length of the center of gravity shifting mechanism is increased. In recent years, various mechanisms such as a light reflection mechanism and a sound generation mechanism are embedded in the lure due to the multifunctionality of the lure. Since these mechanisms are embedded, the position for embedding the center of gravity shifting mechanism is limited, and the range of shifting the center of gravity in the center of gravity shifting mechanism is limited in some cases.

The present invention provides a lure having a center of gravity shifting mechanism capable of maximum center of gravity shifting within a limited range and realizing excellent air posture and underwater posture.

[ solution for solving problems ]

The invention relates to a lure which comprises a lure body, a balance weight body, a guide member and an elastic member, wherein the lure body is hollow and is provided with a head part at the front part and a tail part at the rear part; the counterweight body is arranged in the inside of the artificial bait body in a way of moving along the front-back direction; the guide member is built in the lure body for guiding the movement of the weight body in the front-rear direction; the elastic component is arranged in the artificial bait body and is used for applying force to the counterweight body forwards. The weight body is configured to be movable rearward against the urging force of the elastic member. One of the weight body and the elastic member enters the other.

Preferably: the counterweight body is provided with an accommodating space, and the elastic component enters the accommodating space.

Preferably: the weight body has an inlet to the receiving space at a front or rear portion thereof.

Preferably: the accommodating space is a hole or a groove.

As other embodiments, there may be: the elastic component is a coil spring, and the counterweight body enters the inner side of the coil spring.

Preferably: the elastic component is provided with a 1 st point and a 2 nd point, wherein the 1 st point is connected with the lure body; the point 2 is located rearward of the point 1 and connected to the weight, and the elastic member is stretched by the weight moving rearward when thrown. In this case, it is preferable that: the ratio F/W of the maximum application force F of the elastic member to the weight W of the weight body is 1.0 to 4.0.

As other embodiments, there may be: the elastic component is provided with a 1 st point and a 2 nd point, wherein the 1 st point is connected with the lure body; the point 2 is located forward of the point 1 and connected to the weight, and the elastic member is compressed by the weight moving rearward when thrown. In this case, it is preferable that: the ratio F/W of the maximum application force F of the elastic member to the weight W of the weight body is 1.0 to 4.0.

Preferably: the density of the counterweight body is 18.0g/cm³The above.

Preferably: the guide member is attached to the lure body and penetrates the weight body in the front-rear direction.

[ Effect of the invention ]

In the lure according to the present invention, one of the weight body and the elastic member enters the inside of the other. The weight body and the elastic member have an overlapping portion. Accordingly, the weight body can be moved to the end portion on the tail side. The center of gravity shifting mechanism is realized which can perform necessary center of gravity shifting within a limited range. By this gravity center moving mechanism, excellent air posture and underwater posture of the lure are realized.

Drawings

Fig. 1 is a side view showing a lure according to an embodiment of the present invention.

Fig. 2 is a sectional view of the lure shown in fig. 1 cut in the front-rear direction.

Fig. 3 (a) is a sectional view along IIIa-IIIa of the lure of fig. 2, and fig. 3 (b) is a sectional view along IIIb-IIIb of the lure of fig. 2.

Fig. 4 is a side view showing a state in which the lure of fig. 1 is cast out according to a time sequence.

Fig. 5 is a cross-sectional view showing a state after the weight body of the lure of fig. 2 has moved.

Fig. 6 (a) is a cross-sectional view showing a lure according to another embodiment of the present invention, and fig. 6 (b) is a cross-sectional view showing a state after the weight body of the lure shown in fig. 6 (a) has moved.

Fig. 7 (a) is a cross-sectional view showing a lure according to another embodiment of the present invention, and fig. 7(b) is a cross-sectional view showing a state after the weight body of the lure shown in fig. 7 (a) has moved.

Fig. 8 (a) is a cross-sectional view showing a lure according to another embodiment of the present invention, and fig. 8 (b) is a cross-sectional view showing a state after the weight body of the lure shown in fig. 8 (a) has moved.

Fig. 9 (a) is a cross-sectional view of the lure according to another embodiment of the present invention taken in a front-rear direction, fig. 9 (b) is a cross-sectional view of the lure according to fig. 9 (a) taken in a left-right direction, and fig. 9 (c) and 9 (d) are cross-sectional views of the lure according to another embodiment of the present invention taken in a left-right direction.

Fig. 10 (a) is a cross-sectional view of the lure according to the other embodiment of the present invention taken in the front-rear direction, fig. 10 (b) is a cross-sectional view of the lure according to fig. 10 (a) taken in the left-right direction, and fig. 10 (c) and 10 (d) are cross-sectional views of the lure according to the other embodiment of the present invention taken in the left-right direction.

Fig. 11 is a cross-sectional view of the lure according to another embodiment of the present invention, taken in the left-right direction.

[ description of reference numerals ]

2. 42, 62, 92, 122, 142, 152, 162, 182, 202, 222: simulating bait; 4. 44, 64, 94: a lure body; 4L: a left half portion; 4R: a right half portion; 6. 46, 66, 96: a wire loop; 8. 48, 68, 98: a connecting hook ring; 10. 50, 70, 100, 124, 144, 154, 164, 184, 204, 224: a counterweight body; 12. 52, 72, 102, 126, 148, 158, 166, 188, 208, 230: an elastic member (coil spring); 14. 54, 74, 104, 128, 150, 160, 168, 192, 212, 232: a shaft; 16. 56, 76, 106: a head portion; 18. 58, 78, 108: a tail portion; 20: a main body; 22. 55, 86, 116: a front wall; 24. 57, 88, 118: a rear wall; 26. 88: a cavity; 28: a fishhook; 30: fishing lines; 32. 82, 112, 132, 172, 190, 210, 228: an aperture; 80. 110, 130, 146, 170, 226: a port of the counterweight body; 84. 114, 134: a bottom of the port of the counterweight body; 156: a slot of the counterweight body; 186. 206: a notch part of the counterweight body.

Detailed Description

The present invention will be described in detail based on preferred embodiments with reference to the accompanying drawings.

[ embodiment 1 ]

Fig. 1 is a side view showing a lure 2 according to an embodiment of the present invention. In fig. 1, the direction indicated by the arrow X is the front of the lure 2, and the opposite direction is the rear of the lure 2. The direction shown by the arrow Z is above the lure 2, and the opposite direction is below the lure 2. The direction perpendicular to the paper surface is the left-right direction of the lure 2. Fig. 2 is a sectional view of the lure 2 of fig. 1 cut in the front-rear direction. Fig. 3 (a) is a sectional view taken along IIIa-IIIa of fig. 2, and fig. 3 (b) is a sectional view taken along IIIb-IIIb of fig. 2. As shown in fig. 1 and 2, the lure 2 has a lure body 4, a wire loop 6, three link rings 8, a weight body 10, an elastic member 12 and a shaft 14.

The lure body 4 has an appearance similar to that of a small fish as a fishing lure. The lure body 4 has a front head 16 and a rear tail 18. The front is the cephalad 16 side and the back is the caudal 18 side. As shown in fig. 2, the lure body 4 is hollow. The lure body 4 has a cavity 26 inside. As shown in fig. 3 (a) and 3 (b), the lure body 4 is constituted by joining a left half portion 4L and a right half portion 4R. Typically, the lure body 4 is formed of synthetic resin. Preferably, the synthetic resin is an ABS resin. The lure body 4 may also be formed of a metal material or a wooden material.

As shown in fig. 2, the lure body 4 has a main body 20, a front wall 22 and a rear wall 24. The front wall 22 is located within the cavity 26. Front wall 22 projects from body 20 within cavity 26. The front wall 22 is fixed to the main body 20. As shown in fig. 3 (b), the front wall 22 has a left portion 22L and a right portion 22R. The front wall 22 is fixed by sandwiching the shaft 14 by the left portion 22L and the right portion 22R. As shown in fig. 2, in this embodiment, the front wall 22 is located closer to the head 16 side than the center of the lure body 4. The weight body 10 cannot move across the front wall 22. The front wall 22 serves as a stopper (stopper) when the weight body 10 moves forward.

The rear wall 24 is located within the cavity 26. The rear wall 24 projects from the body 20 within the cavity 26. The rear wall 24 is fixed to the body 20. Although not shown, the rear wall 24 has left and right portions. The rear wall 24 is fixed by sandwiching the shaft 14 by the left and right portions. As shown in fig. 2, in this embodiment, the rear wall 24 is located at the tail 18 of the lure body 4. The weight body 10 cannot move across the rear wall 24. The rear wall 24 serves as a stopper when the weight body 10 moves rearward.

The wire loop 6 and the coupling loop 8 are formed by bending the wire. A typical material of the metal wire is stainless steel (stainless steel). As shown in fig. 2, a part of the metal wire is embedded in the lure body 4, and the remaining part is exposed from the lure body 4. By embedding, the thread loop 6 and the hook link 8 are fixed to the lure body 4. A hook 28 is attached to each hook ring 8. A fishing line 30 is connected to the line loop 6.

The weight body 10 is built in the lure body 4. The weight body 10 extends in the front-rear direction. As shown in fig. 3 (a), the shape of the weight body 10 is circular in a cross section obtained by cutting the weight body 10 in the left-right direction. The weight body 10 has a hole 32 penetrating in the front-rear direction. The port 32 penetrates the center of the weight body 10 in the front-rear direction. As shown in fig. 2 and 3 (a), the shaft 14 passes through the hole 32. Accordingly, the weight body 10 can move in the front-rear direction. The specific gravity of the balance weight body 10 is larger than that of the lure body 4. Examples of the material of the weight body 10 include lead, lead alloy, brass, tungsten alloy, steel, and stainless steel.

The elastic member 12 is built in the lure body 4. As shown in fig. 2, the elastic member 12 is a coil spring 12. The coil spring 12 of fig. 2 is in a compressed state. The coil spring 12 of fig. 2 may have a free length without being loaded with a force in the front-rear direction. As described later, the coil spring 12 is greatly compressed by the weight body 10 at the time of ejection. The coil spring 12 is used in a compressed state or a state without a load force. The coil spring 12 is a compression coil spring 12.

The elastic member 12 has the 1 st point and the 2 nd point, wherein the 1 st point is connected with the lure body 4; the 2 nd point is located forward of the 1 st point and is connected to the weight body 10. In this embodiment, the rear end of the elastic member 12 is the 1 st point, and the 1 st point is connected to the rear wall 24. The tip of the elastic member 12 is a 2 nd point, and the 2 nd point is connected to the tip of the weight body 10. As shown in fig. 2, the weight body 10 enters the inside of the elastic member 12 (inside of the compression coil spring 12). In this embodiment, the entire weight body 10 enters the inside of the elastic member 12.

The point 2 of the elastic member 12 may not be the leading end of the elastic member 12. The portion of the elastic member 12 connected to the point 2 may not be the tip of the weight body 10. The elastic member 12 and the weight 10 may be connected so that the weight 10 enters the inside of the elastic member 12. The 1 st point of the elastic member 12 may not be the rear end of the elastic member 12. The 1 st point may be connected to the lure body 4 at a position rearward of the 2 nd point so as not to interfere with the operation of the weight body 10.

The shaft 14 is built in the lure body 4. The shaft 14 extends in the front-rear direction. The shaft 14 is spanned between a front wall 22 and a rear wall 24. The shaft 14 is fixed to a front wall 22 and a rear wall 24. The shaft 14 passes through the hole 32 of the weight body 10. As shown in fig. 3 (a), in this embodiment, the shaft 14 penetrates the center of the weight body 10. The weight body 10 is movable in the front-rear direction along the shaft 14. The shaft 14 is a guide member for guiding the movement of the weight body 10 in the front-rear direction. Typical materials for the shaft 14 include steel, stainless steel, copper alloy, titanium alloy, and synthetic resin.

In the lure 2, the weight body 10 is movable between the front wall 22 and the rear wall 24 through the elastic member 12 and the shaft 14. By the movement of the weight body 10, the center of gravity of the lure 2 is moved. The weight body 10, the elastic member 12 and the shaft 14 constitute a center of gravity shifting mechanism of the lure 2.

The state of the throw-out of the lure 2 is shown in time series in fig. 4. (1) Showing the start of throwing, (2) and (3) showing a state in which the lure 2 is being pulled by the fishing line 30, (4) and (5) showing a state in which the lure 2 is being released from the pulling of the fishing line 30 and is gliding; (6) indicating a state in which the lure 2 is falling into the water.

By being thrown, the lure body 4 flies, and the weight body 10 momentarily compresses the compression coil spring 12 due to inertia. Fig. 5 shows the lure 2 in the state of (2) and (3) of fig. 4. The weight body 10 moves rearward against the urging force of the compression coil spring 12. Since the weight body 10 enters the inside of the compression coil spring 12, it moves rearward until it comes into contact with the rear wall 24. The weight body 10 moves to the tail 18 side of the lure 2. The lure 2 flies with the tail 18 as the front end. The lure 2 flies in a state where the center of gravity is located at the front end.

The lure 2 is decelerated by the drag of the fishing line and air during flight. A negative acceleration acts on the lure 2. At the time of initial deceleration, the weight body 10 is positioned on the tail portion 18 side (the front end side in the flying posture) by inertia against the biasing force of the compression coil spring 12. When the lure 2 decelerates further, the acceleration becomes small. The compression coil spring 12 urges the weight body 10 forward. The weight body 10 is gradually pushed back to the head 16 side by the urging force of the compression coil spring 12. After falling into the water, the weight body 10 returns to the position shown in fig. 2. The lure 2 travels with its center of gravity positioned closer to the head 16 than to the center.

The operation and effect of the present invention will be explained below.

In the lure 2 according to the present invention, the weight body 10 is located at the tail portion 18 when being thrown out. The lure 2 flies with the tail 18 as the front end. The lure 2 flies in a state where the center of gravity is located at the front end. This contributes to excellent air posture. The lure 2 can fly to a remote place. The lure 2 has the weight body 10 positioned closer to the head 16 than the center in the water. The center of gravity of the lure 2 is located closer to the head 16 than the center. This contributes to an excellent underwater posture. The lure 2 can achieve a high hook-up rate.

In the lure 2, the weight body 10 enters the inside of the compression coil spring 12 as the elastic member 12. As shown in fig. 5, the compression coil spring 12 does not hinder the movement of the weight body 10 toward the tail portion 18. The weight body 10 can move to the rear wall 24 as a stopper. The lure 2 can be positioned with its center of gravity in the air near one end on the tail 18 side. This contributes to excellent air posture. The lure 2 can fly to a remote place.

In the lure 2, since the weight body 10 enters the inside of the compression coil spring 12, the restriction of the moving range of the weight body 10 becomes small, and the degree of freedom in installing the center of gravity moving mechanism increases. Other mechanisms are easily embedded in the lure 2. The lure 2 is realized as a center of gravity shifting mechanism capable of performing necessary center of gravity shifting within a limited range. This contributes to the excellent air posture and the excellent underwater posture of the lure 2.

In order to make the flying distance of the lure 2 longer, it is preferable that the weight body 10 is located at the tail portion 18 in order to prevent the lure 2 from excessively rising due to the lifting force when the thrown lure 2 rises. When the lure 2 is lowered, the weight body 10 is preferably moved from the tail portion 18 toward the head portion 16 side in order to prevent the lift force from being reduced by excessively lowering the tip end. After the lure 2 falls into the water, it is preferable that the weight body 10 is moved to the position of the front wall 22. In order to achieve these positions of the weight body 10, it is important that the force exerted by the elastic member 12 is balanced with the weight of the weight body 10.

The maximum applied force of the resilient member 12 is referred to as the maximum applied force F. In the compression coil spring 12, the force with which the spring 12 presses the weight body 10 when the spring 12 is compressed to the maximum magnitude is the maximum application force F. Preferably, the ratio F/W of the maximum application force F to the weight W of the weight body 10 is 1.0 or more. By setting the ratio F/W to 1.0 or more, the compression coil spring 12 can push the weight body 10 back to the head 16 side when the lure 2 descends. By setting the ratio F/W to 1.0 or more, the compression coil spring 12 can push the weight body 10 back to the position of the front wall 22 in a short time after the lure 2 falls into the water. This contributes to the excellent flying posture and underwater posture of the lure 2. From this viewpoint, the ratio F/W is more preferably 1.6 or more, and further preferably 2.0 or more.

The ratio F/W is preferably 4.0 or less. By setting the ratio F/W to 4.0 or less, the weight body 10 can be moved to the position of the rear wall 24 immediately when the lure 2 is thrown out. By setting the ratio F/W to 4.0 or less, the weight body 10 can be prevented from being pushed back to the head 16 side when the lure 2 is raised. This contributes to an excellent flying posture of the lure 2. From this viewpoint, the ratio F/W is more preferably 3.4 or less, and still more preferably 3.0 or less.

The density of the weight body 10 is preferably 18.0g/cm³The above. The density was 18.0g/cm³The above weight body 10 has a sufficient weight to adjust the flying posture and the underwater posture with a small volume. Other mechanisms are easily embedded in the lure 2. From this viewpoint, the density of the weight body 10 is more preferably 19.0g/cm³The above.

The material of the weight body 10 is preferably tungsten or a tungsten alloy. The weight body 10 made of tungsten or tungsten alloy has high density. The weight body 10 has a sufficient weight to adjust the flying posture and the underwater posture with a small volume. Other mechanisms are easily embedded in the lure 2.

[ 2 nd embodiment ]

Fig. 6 (a) is a cross-sectional view showing a lure 42 according to another embodiment of the present invention. Which is a sectional view of the lure 42 cut in the front-rear direction. In fig. 6, the direction indicated by the arrow X is the front of the lure 42, and the opposite direction is the rear of the lure 42. The direction indicated by the arrow Z is above the lure 42, and the opposite direction is below the lure 42. The direction perpendicular to the paper surface is the left-right direction of the lure 42. The lure 42 has a lure body 44, a wire loop 46, three link rings 48, a weight body 50, an elastic member 52, and a shaft 54. The lure body 44, the thread ring 46, the hook link 48 and the shaft 54 of the lure 42 are the same as the lure body 4, the thread ring 6, the hook link 8 and the shaft 14 of the lure 2 of fig. 2.

The weight body 50 is built in the lure body 44. The weight body 50 extends in the front-rear direction. In a cross section of the weight 50 cut in the front-rear direction, the weight 50 is circular. The weight body 50 has a hole penetrating in the front-rear direction. The hole penetrates the center of the weight body 50 in the front-rear direction. As shown in fig. 6 (a), the shaft 54 passes through the hole. Accordingly, the weight body 50 can move in the front-rear direction. The weight body 50 has a specific gravity higher than that of the lure body 44. Examples of the material of the weight body 50 include lead, lead alloy, brass, tungsten alloy, steel, and stainless steel.

The elastic member 52 is built in the lure body 44. As shown in fig. 6 (a), the elastic member 52 is a coil spring 52. The coil spring 52 of fig. 6 (a) is in an elongated state. The coil spring 52 in fig. 6 (a) may have a free length without being loaded with a force in the front-rear direction. As described later, the coil spring 52 is largely elongated by the weight body 50 at the time of ejection. The coil spring 52 is used in a state of being elongated or having no load force. The coil spring 52 is a tension coil spring 52.

The elastic member 52 has the 1 st point and the 2 nd point, wherein the 1 st point is connected with the lure body 44; the 2 nd point is located rearward of the 1 st point and connected to the weight body 50. In this embodiment, the front end of the elastic member 52 is the 1 st point, and the 1 st point is connected to the front wall 55. The rear end of the elastic member 52 is a 2 nd point, and the 2 nd point is connected to the rear end of the weight body 50. As shown in fig. 6 (a), the weight 50 enters the inside of the elastic member 52. In this embodiment, the entire weight body 50 enters the inside of the elastic member 52.

The point 2 of the elastic member 52 may not be the rear end of the elastic member 52. The portion of the elastic member 52 to which the 2 nd point is connected may not be the rear end of the weight body 50. The elastic member 52 and the weight 50 may be connected so that the weight 50 enters the inside of the elastic member 52. The 1 st point of the elastic member 52 may not be the leading end of the elastic member 52. The 1 st point may be connected to the lure body 44 at a position forward of the 2 nd point so as not to interfere with the operation of the weight body 50.

The lure 42 is thrown, the lure body 44 flies, and the weight body 50 instantaneously elongates the tension coil spring 52 due to inertia. The lure 42 in this state is shown in fig. 6 (b). The weight body 50 moves rearward against the biasing force of the tension coil spring 52. The weight body 50 moves rearward until it comes into contact with the rear wall 57. The weight body 50 moves to the tail portion 58 side of the lure 42. The lure 42 flies with the tail 58 as the front end. The lure 42 flies in a state where the center of gravity is located at the front end.

The lure 42 is decelerated by the drag of the fishing line and air during flight. A negative acceleration acts on the lure 42. At the initial deceleration, the weight body 50 is positioned on the tail portion 58 side by inertia against the urging force of the tension coil spring 52. When the lure 42 is further decelerated, the acceleration becomes small. The tension coil spring 52 urges the weight body 50 forward. The weight body 50 is gradually pulled back to the head 56 side by the urging force of the tension coil spring 52. After falling into the water, the weight body 50 returns to the position shown in fig. 6 (a). When the lure 42 plays in water, the weight body 50 is located at the position shown in fig. 6 (a). The lure 42 travels with its center of gravity located closer to the head 56 than the center.

In the case of the lure 42 according to the present invention, the weight body 50 is located at the tail portion 58 when being thrown. The lure 42 flies with the tail 58 as the front end. The lure 42 flies in a state where the center of gravity is located at the front end. This contributes to excellent air posture. The lure 42 can fly to a remote place. The balance weight 50 of the lure 42 is positioned closer to the head 56 than the center. The center of gravity of the lure 42 is located closer to the head 56 than the center. This contributes to an excellent underwater posture. With this lure 42, a high hook-up rate can be achieved.

In the lure 42, the weight body 50 enters inside the tension coil spring 52 as the elastic member 52. As shown in fig. 6 (a), when the weight 50 is positioned on the head 56 side, the weight 50 and the tension coil spring 52 are overlapped. The tension coil spring 52 is not located on the head 56 side of the weight body 50. Other mechanisms are easily embedded in the lure 42.

In this lure 42, since the weight body 50 enters the inside of the tension coil spring 52, the restriction of the moving range of the weight body 50 becomes small, and the degree of freedom in installing the center of gravity moving mechanism increases. Other mechanisms are easily embedded in the lure 42. The lure 42 realizes a center of gravity shifting mechanism capable of performing necessary center of gravity shifting within a limited range. This contributes to the excellent air posture and the excellent underwater posture of the lure 42.

In the tension coil spring 52, the force with which the spring 52 pulls the weight body 50 when the spring 52 is stretched to the maximum is the maximum applied force F. The ratio F/W of the maximum application force F to the weight W of the weight 50 is preferably 1.0 or more. By setting the ratio F/W to 1.0 or more, the tension coil spring 52 can pull the weight body 50 back to the head 56 side when the lure 42 is lowered. By setting the ratio F/W to 1.0 or more, the tension coil spring 52 can pull the weight body 50 back to the position of the front wall 55 in a short time after the lure 42 falls into the water. This contributes to the excellent flying posture and underwater posture of the lure 42. From this viewpoint, the ratio F/W is more preferably 1.6 or more, and further preferably 2.0 or more.

The ratio F/W is preferably 4.0 or less. By setting the ratio F/W to 4.0 or less, the weight body 50 can be immediately moved to the position of the rear wall 57 at the time of throwing out the lure 42. By setting the ratio F/W to 4.0 or less, the weight body 50 can be prevented from being pulled back to the head 56 side when the lure 42 is raised. This contributes to an excellent flying posture of the lure 42. From this viewpoint, the ratio F/W is more preferably 3.4 or less, and still more preferably 3.0 or less.

[ embodiment 3 ]

Fig. 7 (a) is a cross-sectional view showing a lure 62 according to another embodiment of the present invention. Which is a sectional view of the lure 62 cut in the front-rear direction. In fig. 7 (a), the direction indicated by the arrow X is the front of the lure 62, and the opposite direction is the rear of the lure 62. The direction indicated by the arrow Z is above the lure 62, and the opposite direction is below the lure 62. The direction perpendicular to the paper surface is the left-right direction of the lure 62. The lure 62 has a lure body 64, a wire loop 66, three link rings 68, a weight body 70, an elastic member 72, and a shaft 74. The lure body 64, the thread ring 66 and the hook link 68 of the lure 62 are the same as the lure body 4, the thread ring 6 and the hook link 8 of the lure 2 of fig. 2.

The weight body 70 is built in the lure body 64. The weight body 70 extends in the front-rear direction. In a cross section of the weight body 70 cut in the front-rear direction, the weight body 70 is circular in shape. As shown in fig. 7 (a), the weight body 70 has a port 80 extending forward (toward the head 76) from the rear surface (the surface on the tail 78 side). The elastic member 72 enters the port 80 from the rear side of the weight body 70. The elastic member 72 enters the inside of the weight body 70. The port 80 of the weight body 70 constitutes a housing space having an entrance at the rear and housing the elastic member 72.

The weight 70 has a hole 82 that extends from the bottom surface of the hole 80 to the front surface (the surface on the head 76 side) of the weight 70. The bore 80 has a larger inner diameter than the bore 82. The shaft 74 passes through the holes 80 and 82. Accordingly, the weight body 70 can move in the front-rear direction. The weight body 70 has a specific gravity higher than that of the lure body 64. Examples of the material of the weight body 70 include lead, lead alloy, brass, tungsten alloy, steel, and stainless steel.

The elastic member 72 is built in the lure body 64. As shown in fig. 7 (a), the elastic member 72 is a coil spring 72. The coil spring 72 in fig. 7 (a) is in a compressed state. The coil spring 72 in fig. 7 (a) may have a free length without being loaded with a force in the front-rear direction. As described later, the coil spring 72 is greatly compressed by the weight body 70 at the time of ejection. The coil spring 72 is used in a compressed state or a state without a load force. The coil spring 72 is a compression coil spring 72.

The elastic member 72 at the 1 st point and the 2 nd point, wherein the 1 st point is connected with the lure body 64; the 2 nd point is located forward of the 1 st point and is connected to the weight 70. In this embodiment, the rear end of the elastic member 72 is the 1 st point, and the 1 st point is connected to the rear wall 88. The front end of the elastic member 72 is a 2 nd point, and the 2 nd point is connected to the bottom 84 of the port 80 of the weight body 70. As shown in fig. 7 (a), the shaft 74 penetrates the elastic member 72.

The point 2 of the elastic member 72 may not be the leading end of the elastic member 72. The portion of the elastic member 72 connected to the point 2 may not be the bottom 84 of the port 80 of the weight body 70. The elastic member 72 and the weight 70 may be connected so that the weight 70 enters the elastic member 72. The 1 st point of the elastic member 72 may not be the rear end of the elastic member 72. The 1 st point may be connected to the lure body 64 at a position rearward of the 2 nd point so as not to interfere with the operation of the weight body 70.

The shaft 74 is built in the lure body 64. The shaft 74 extends in the front-rear direction. The shaft 74 is spanned between a front wall 86 and a rear wall 88. The shaft 74 is fixed to a front wall 86 and a rear wall 88. The shaft 74 extends through the ports 82 and 80 of the weight body 70. The shaft 74 penetrates the inside of the elastic member 72. The weight body 70 is movable in the front-rear direction along the shaft 74. The shaft 74 is a guide member for guiding the movement of the weight body 70 in the front-rear direction.

The lure 62 is thrown, the lure body 64 flies, and the weight body 70 momentarily compresses the compression coil spring 72 due to inertia. The lure 62 in this state is shown in fig. 7 (b). The weight body 70 moves rearward against the urging force of the compression coil spring 72. The weight body 70 moves rearward until it contacts the rear wall 88. At this time, the entire compression coil spring 72 enters the port 80 of the weight body 70. The weight body 70 moves to the tail 78 side of the lure 62. The lure 62 flies with the tail 78 as the leading end. The lure 62 flies in a state where the center of gravity is located at the front end.

The lure 62 is decelerated by the drag of the fishing line and air during flight. A negative acceleration acts on the lure 62. At the initial deceleration, the weight body 70 is positioned on the tail portion 78 side by inertia against the urging force of the compression coil spring 72. When the lure 62 is further decelerated, the acceleration becomes small. The compression coil spring 72 urges the weight body 70 forward. The weight body 70 is gradually pushed back to the head 76 side by the urging force of the compression coil spring 72. After falling into the water, the weight body 70 returns to the position shown in fig. 7 (a). When the lure 62 plays in water, the weight body 70 is located at the position shown in fig. 7 (a). The lure 62 travels with its center of gravity located closer to the head 76 than the center.

The artificial bait 62 is provided with a compression coil spring 72 as an elastic member 72 that is inserted inside the weight body 70. As shown in fig. 7 (a), the compression coil spring 72 does not hinder the movement of the weight body 70 toward the tail 78. The weight body 70 can move to the rear wall 88 as a stopper. The lure 62 can be positioned so that the center of gravity in the air is located near the end on the side of the tail 78. This contributes to excellent air posture. The lure 62 can fly farther.

In the lure 62, since the compression coil spring 72 enters the inside of the weight body 70, the restriction of the moving range of the weight body 70 becomes small, and the degree of freedom in installing the center of gravity moving mechanism increases. Other mechanisms are easily embedded in the lure 62. The lure 62 is realized as a center of gravity shifting mechanism capable of performing necessary center of gravity shifting within a limited range. This contributes to the excellent air posture and the excellent underwater posture of the lure 62.

In the compression coil spring 72, the force with which the spring 72 presses the weight body 70 when the spring 72 is compressed to the maximum magnitude is the maximum application force F. The ratio F/W of the maximum application force F to the weight W of the weight 70 is preferably 1.0 or more. By setting the ratio F/W to 1.0 or more, the compression coil spring 72 can push the weight body 70 back to the head 76 side when the lure 62 descends. By setting the ratio F/W to 1.0 or more, the compression coil spring 72 can push the weight body 70 back to the position of the front wall 86 in a short time after the lure 62 falls into the water. This contributes to the excellent flying posture and underwater posture of the lure 62. From this viewpoint, the ratio F/W is more preferably 1.6 or more, and further preferably 2.0 or more.

The ratio F/W is preferably 4.0 or less. By setting F/W to 4.0 or less, the weight body 70 can be moved to the position of the rear wall 88 immediately when the lure 62 is cast out. By setting the ratio F/W to 4.0 or less, the weight body 70 can be prevented from being pushed back to the head 76 side when the lure 62 is raised. This contributes to an excellent flying posture of the lure 62. From this viewpoint, the ratio F/W is more preferably 3.4 or less, and still more preferably 3.0 or less.

The density of the weight body 70 is preferably 18.0g/cm³The above. The density was 18.0g/cm³The above weight body 70 has a sufficient weight to adjust the flying posture and the underwater posture with a small volume. Other mechanisms are easily embedded in the lure 62. From this viewpoint, the density of the weight 70 is more preferably 19.0g/cm³The above.

The material of the weight body 70 is preferably tungsten or a tungsten alloy. The weight body 70 made of tungsten or tungsten alloy has high density. The weight body 70 has a sufficient weight to adjust the flying posture and the underwater posture with a small volume. Other mechanisms are easily embedded in the lure 62.

[ 4 th embodiment ]

Fig. 8 (a) is a cross-sectional view showing a lure 92 according to another embodiment of the present invention. Which is a sectional view of the lure 92 cut in the front-rear direction. In fig. 8, the direction indicated by the arrow X is the front of the lure 92, and the opposite direction is the rear of the lure 92. The direction indicated by the arrow Z is above the lure 92, and the opposite direction is below the lure 92. The direction perpendicular to the paper surface is the left-right direction of the lure 92. The lure 92 has a lure body 94, a wire loop 96, three link rings 98, a weight body 100, an elastic member 102 and a shaft 104. The lure body 94, the thread ring 96 and the hook link 98 of the lure 92 are the same as the lure body 4, the thread ring 6 and the hook link 8 of the lure 2 of fig. 2.

The weight body 100 is built in the lure body 94. The weight body 100 extends in the front-rear direction. In a cross section of the counterweight body 100 cut in the front-rear direction, the shape of the counterweight body 100 is circular. As shown in fig. 8, the weight body 100 has a hole 110 extending rearward (toward the tail 108) from the front surface (the surface on the head 106 side). The entirety of the elastic member 102 enters the hole 110 from the front side. The elastic member 102 enters the inside of the weight body 100. The port 110 of the weight body 100 constitutes a housing space having an entrance at the front and housing the elastic member 102.

The weight body 100 has a port 112 that penetrates from the bottom surface of the port 110 to the rear surface (the surface on the tail 108 side) of the weight body 100. The bore 110 has a larger inner diameter than the bore 112. The shaft 104 passes through the holes 110 and 112. Accordingly, the weight body 100 can move in the front-rear direction. The weight body 100 has a specific gravity higher than that of the lure body 94. Examples of the material of the weight body 100 include lead, lead alloy, brass, tungsten alloy, steel, and stainless steel.

The elastic member 102 is built in the lure body 94. As shown in fig. 8 (a), the elastic member 102 is a coil spring 102. The coil spring 102 in fig. 8 (a) is in an elongated state. The coil spring 102 in fig. 8 (a) may have a free length without being loaded with a force in the front-rear direction. As described later, the spring 102 is greatly elongated by the weight body 100 at the time of ejection. The coil spring 102 is used in a state of being elongated or having no load force. The coil spring 102 is a tension coil spring 102.

The elastic member 102 has the 1 st point and the 2 nd point, wherein the 1 st point is connected with the lure body 94; the 2 nd point is located rearward of the 1 st point and connected to the weight body 100. In this embodiment, the front end of the elastic member 102 is point 1, and the point 1 is connected to the front wall 116. The rear end of the elastic member 102 is a 2 nd point, and the 2 nd point is connected to the bottom 114 of the port 110 of the weight body 100. As shown in fig. 8 (a), the shaft 104 penetrates the elastic member 102.

The point 2 of the elastic member 102 may not be the rear end of the elastic member 102. The portion of the elastic member 102 connected to the 2 nd point may not be the bottom 114 of the port 110 of the weight body 100. The elastic member 102 and the weight body 100 may be connected such that the weight body 100 enters the inside of the elastic member 102. The 1 st point of the elastic member 102 may not be the front end of the elastic member 102. The 1 st point may be connected to the lure body 94 at a position forward of the 2 nd point so as not to interfere with the operation of the weight body 100.

The shaft 104 is built in the lure body 94. The shaft 104 extends in the front-rear direction. The shaft 104 is spanned between a front wall 116 and a rear wall 118. The shaft 104 is fixed to a front wall 116 and a rear wall 118. The shaft 104 extends through the ports 112 and 110 of the weight body 100. The shaft 104 penetrates the inside of the elastic member 102. The weight body 100 is movable along the shaft 104 in the front-rear direction. The shaft 104 is a guide member for guiding the movement of the weight body 100 in the front-rear direction.

The lure 92 is thrown, the lure body 94 flies, and the weight body 100 instantaneously elongates the tension coil spring 102 due to inertia. The lure 92 in this state is shown in fig. 8 (b). The weight body 100 moves rearward against the urging force of the tension coil spring 102. The weight body 100 moves rearward until it contacts the rear wall 118. The weight body 100 moves to the tail 108 side of the lure 92. The lure 92 flies with the tail 108 as the leading end. The lure 92 flies with its center of gravity at the front end.

The lure 92 decelerates due to drag of the fishing line and air during flight. A negative acceleration acts on the lure 92. At the initial deceleration, the weight body 100 is positioned on the tail portion 108 side by inertia against the urging force of the tension coil spring 102. When the lure 92 is further decelerated, the acceleration becomes small. The tension coil spring 102 urges the weight body 100 forward. The weight body 100 is gradually pulled back to the head 106 side by the urging force of the tension coil spring 102. After falling into the water, the weight body 100 returns to the position shown in fig. 8 (a). When the lure 92 swims in water, the weight body 100 is located at the position shown in fig. 8 (a). The lure 92 moves with its center of gravity located closer to the head 106 than the center.

For this lure 92, the tension coil spring 102 enters the inside of the weight body 100. As shown in fig. 8 (a), when the weight 100 is positioned on the head 106 side, the weight 100 overlaps the tension coil spring 102. The tension coil spring 102 is not located on the head 106 side of the weight body 100. The other mechanism is easily embedded in the lure 92.

In the lure 92, since the tension coil spring 102 enters the inside of the weight body 100, the restriction of the moving range of the weight body 100 becomes small, and the degree of freedom in installing the center of gravity moving mechanism increases. The other mechanism is easily embedded in the lure 92. The lure 92 realizes a center of gravity shifting mechanism capable of performing necessary center of gravity shifting within a limited range. This contributes to the excellent air posture and the excellent underwater posture of the lure 92.

In the tension coil spring 102, the force with which the spring 102 pulls the weight body 100 is the maximum applied force F when the spring 102 is stretched to the maximum. The ratio F/W of the maximum application force F to the weight W of the weight body 100 is preferably 1.0 or more. By setting the ratio F/W to 1.0 or more, the tension coil spring 102 can pull the weight body 100 back to the head 106 side when the lure 92 is lowered. By setting the ratio F/W to 1.0 or more, the tension coil spring 102 can pull the weight body 100 back to the position of the front wall 116 in a short time after the lure 92 falls into the water. This contributes to the excellent flying posture and underwater posture of the lure 92. From this viewpoint, the ratio F/W is more preferably 1.6 or more, and further preferably 2.0 or more.

The ratio F/W is preferably 4.0 or less. By setting the ratio F/W to 4.0 or less, the weight body 100 can be immediately moved to the position of the rear wall 118 at the time of throwing out the lure 92. By setting the ratio F/W to 4.0 or less, the weight body 100 can be prevented from being pulled back to the head 106 side when the lure 92 is raised. This contributes to an excellent flying posture of the lure 92. From this viewpoint, the ratio F/W is more preferably 3.4 or less, and still more preferably 3.0 or less.

[ other embodiments ]

Fig. 9 (a) is a cross-sectional view showing a part of a lure 122 according to another embodiment of the present invention. Fig. 9 (b) is a sectional view taken along IXa-IXa in fig. 9 (a). In these figures, the weight body 124, a part of the elastic member 126 and a part of the shaft 128 of the lure 122 are shown. The lure 122 has the same structure as the lure 62 of fig. 7 (a), except for the weight body 124 and the elastic member 126.

As shown in fig. 9 (a) and 9 (b), the weight body 124 has two holes 130 and one hole 132. Each port 130 extends forward (toward the head) from the rear surface (the surface on the rear side) of the weight 124. The port 132 penetrates the weight body 124 in the front-rear direction. As shown in fig. 9 (b), the port 132 penetrates the center of the weight body 124. Shaft 128 passes through aperture 132. Accordingly, the weight body 124 can move in the front-rear direction.

There are two elastic members 126. Each elastic member 126 enters a corresponding port 130 of the weight body 124 from the rear side. The port 130 of the weight body 124 constitutes a receiving space having an entrance at the rear portion and receiving the elastic member 126. The elastic member 126 has the 1 st point and the 2 nd point, wherein the 1 st point is connected with the lure body; the 2 nd point is located forward of the 1 st point and is connected to the weight 124. Although not shown, in this embodiment, the rear end of the elastic member 126 is the 1 st point, and the 1 st point is connected to the rear wall. The front end of the elastic member 126 is a 2 nd point, and the 2 nd point is connected to the bottom 134 of the port 130 of the weight body 124. The elastic member 126 is a compression coil spring 126.

The shaft 128 is spanned between the front and rear walls. The shaft 128 is fixed to the front and rear walls. The shaft 128 extends through a bore 130 of the weight body 124. The weight body 124 is movable in the front-rear direction along the shaft 128. The shaft 128 is a guide member for guiding the movement of the weight body 124 in the front-rear direction.

The operation of the weight body 124 of the lure 122 in fig. 9 (a) and 9 (b) is the same as the operation of the weight body 70 of the lure 122 in fig. 7 (a). The artificial bait 122 is provided with a compression coil spring 126 as an elastic member 126 which is inserted inside the weight body 124. The compression coil spring 126 does not become an obstacle when the weight body 124 moves to the rear side. The weight body 124 can move to the rear wall as a stopper. The lure 122 can be positioned in the vicinity of one end on the tail side in the center of gravity in the air. This contributes to excellent air posture. The lure 122 can fly to a remote place. In the lure 122, since the compression coil spring 126 enters the inside of the weight body 124, the restriction of the moving range of the weight body 124 becomes small, and the degree of freedom in installing the center of gravity moving mechanism increases. Other mechanisms are easily buried in the lure 122.

Fig. 9 (c) is a cross-sectional view showing a part of the lure 142 according to another embodiment of the present invention. Which is a cross-sectional view obtained by cutting the counterweight body 144 in the left-right direction. The number of the holes 146 and the number of the elastic members 148 are increased for the lure 142 as compared with the lure 122 of fig. 9 (a) and 9 (b). The number of the ports 146 of the weight body 144 and the number of the elastic members 148 introduced thereinto are 6 for the lure 142, respectively. Except for this, the lure 142 is the same as the lure 122 in fig. 9 (a) and 9 (b). In the lure 142, the shaft 150 penetrates the center of the weight body 144, as in the lure 122 shown in fig. 9 (a) and 9 (b).

The number of ports of the weight body and the number of elastic members entering the ports may be other than 2 in fig. 9 (b) and 6 in fig. 9 (c). The number may be 4, 5, or 7 or more.

Fig. 9 (d) is a cross-sectional view showing a part of the lure 152 according to another embodiment of the present invention. In the lure 152, the weight body 154 has a groove 156 on its outer peripheral surface. In this embodiment, the number of slots 156 is 4. Each slot 156 extends in the front-to-rear direction. The resilient member 158 enters each groove 156 from the rear side. The slot 156 of the weight body 154 constitutes a receiving space having an entrance at the rear and receiving an elastic member 158. The elastic member 158 enters the inside of the weight body 154. Except for this, the lure 152 is the same as the lure 122 in fig. 9 (a) and 9 (b). The lure 152 is configured such that the shaft 160 penetrates the center of the weight body 154, as in the lure 122 shown in fig. 9 (a) and 9 (b).

The number of the slots 156 of the weight body 154 and the number of the elastic members 158 entering the slots 156 may be other than 4. The number of the grooves 156 and the number of the elastic members 158 may be 3 or less, or 5 or more.

Fig. 10 (a) is a cross-sectional view showing a part of a lure 162 according to another embodiment of the present invention. FIG. 10 (b) is a sectional view of Xb-Xb in FIG. 10 (a). Fig. 10 (a) is a sectional view of Xa-Xa in fig. 10 (b). In these figures, a weight body 164 of the lure 162, a part of an elastic member 166, and a part of a shaft 168 are shown. The lure 162 has the same structure as the lure 122 of fig. 7 (a), except for the positions of the weight body 164, the elastic member 166 and the shaft 168.

As shown in fig. 10 (a) and 10 (b), the weight body 164 has two holes 170 and one hole 172. The resilient member 166 enters each of the holes 170 from the rear side. The port 170 of the weight body 164 constitutes a receiving space having an entrance at the rear portion and receiving the elastic member 166. For the lure 162, the port 172 is not located in the center of the weight body 164. The port 172 penetrates the weight 164 in the front-rear direction at a position above the center of the weight 164. The shaft 168 passes through the aperture 172. The shaft 168 penetrates the upper side of the center of the weight body 164.

Fig. 10 (c) is a cross-sectional view showing a part of the lure 182 according to another embodiment of the present invention. The counterweight 184 is cut in the left-right direction. The weight body 184 has a cutout 186 penetrating in the left-right direction and extending from the rear end to the front side. Notch 186 does not reach the front end. The elastic member 188 enters the notch 186 from the rear side. The cutout 186 of the weight 184 constitutes an accommodation space having an entrance at the rear and accommodating an elastic member 188. In this embodiment, the number of the elastic members 188 is 2. For the lure 182, the port 190 is not located in the center of the weight body 184. The port 190 penetrates the weight 184 in the front-rear direction at a position above the center of the weight 184. A shaft 192 passes through the aperture 190. The shaft 192 penetrates the upper side of the center of the weight body 184.

Fig. 10 (d) is a cross-sectional view showing a part of the lure 202 according to another embodiment of the present invention. Which is a cross-sectional view of the counterweight 204 cut in the left-right direction. The lower half of the weight 204 forms a gap. The notch 206 extends from the rear end to the front side. The notch 206 does not reach the front end. The elastic member 208 enters the notch portion 206 from the rear side. The notch 206 constitutes an accommodation space having an entrance at the rear and accommodating the elastic member 208. In this embodiment, the number of the elastic members 208 is 3. For this lure 202, the port 210 is not located at the center of the weight body 204. The port 210 penetrates the weight body 204 in the front-rear direction at a position above the center of the weight body 204. A shaft 212 passes through the hole 210. The shaft 212 penetrates the upper side of the center of the weight body 204.

Fig. 11 is a sectional view showing a part of a lure 222 according to another embodiment of the present invention. Which is a cross-sectional view of the counterweight body 224 cut in the left-right direction. The cross-sectional shape of the weight body 224 is not circular. The lower portion of the weight 224 is larger than the upper portion thereof. The center of gravity of the weight 224 is located below the center. The weight body 224 has two ports 226 and one port 228. The elastic member 230 enters each hole 226. The port 228 is not located at the center of the weight body 224 for the lure 222. The port 228 penetrates the weight 224 in the front-rear direction at a position above the center of the weight 224. The shaft 232 passes through the aperture 228. The shaft 232 penetrates the upper side of the center of the weight body 224.

In the above-described embodiment, the inner diameter of the coil spring as the elastic member is fixed. The inner diameter of the coil spring may not be fixed. For example, the elastic member may be a conical spring having a gradually changing inner diameter.

In the above-described embodiment, the elastic member is a coil spring. The elastic member inserted into the weight may be a spring formed by bending a metal in a corrugated shape. The elastic member may be rubber. Other resilient members are also possible.

In the embodiments described above, the guide member is a shaft. The guide member may be a wire (wire) made of a metal wire. In this embodiment, the wire is strung between the front and rear walls. The wire penetrates through the hole of the counterweight body. Typical materials for the wire include steel, stainless steel, copper alloy, and titanium alloy.

As described above, the lure according to the present invention has the center of gravity shifting mechanism capable of performing maximum center of gravity shifting within a limited range. By this gravity center moving mechanism, excellent air posture and underwater posture of the lure are realized. Therefore, the advantages of the invention are obvious.

[ Industrial Applicability ]

The artificial bait is suitable for fishing in various places such as lakes and marshes, ponds, reservoirs, rivers, seas and the like.