Sinker mounting mechanism

Abstract

To provide a sinker mounting mechanism capable of maintaining an appropriate attitude of a body of a lure in a habitat of a prey, while increasing a sinking speed of the lure.SOLUTION: A sinker mounting mechanism 11 includes: a rod 13 provided with a sinker arrangement part 132 where a sinker 81 is arranged; and a shaft member 14 for supporting the rod 13. The shaft member 14 supports the rod 13 such that a body 2 of a squid lure 1 and the rod 13 can rotate relative to each other. The sinker mounting mechanism 11 further includes a rotation regulation part for regulating the rotation of the body 2 of the squid lure 1 relative to the rod 13, between a first position where an angle formed between the rod 13 and a longitudinal axis L1 of the body 2 of the squid lure 1 becomes θ1, and a second position where an angle formed between the rod 13 and the longitudinal axis L1 becomes θ2 that is smaller than θ1.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a weight attachment mechanism for attaching a weight to the body of an artificial bait. [Background technology]

[0002] Artificial baits for fishing are widely used. For example, in fishing for squids as prey (targets for capture) using an artificial bait called "egi (bait stick)," a user swings the artificial bait attached to a fishing line to attract squids, and then catches the squid by hooking it with the artificial bait.

[0003] Fig. 15 shows the egi 9 proposed in Patent Document 1. The egi 9 is mainly used for squid fishing, and comprises a main body 91 made of a plastic material and a rod-shaped member 92 made of a metal material. The rod-shaped member 92 penetrates the main body 91, and one end 92a and the other end 92b are disposed outside the main body 91. A fishing line 93 is connected to the one end 92a, and a weight 94 is attached to the other end 92b. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Patent No. 7321587 Summary of the Invention [Problem to be solved by the invention]

[0005] For example, when fishing for squid that live near the seabed, the user must let the egi 9 cast on the sea surface sink to the vicinity of the seabed. At this time, the egi 9 sinks in the direction indicated by the arrow A15 with the weight 94 at the bottom as shown in FIG. 15, and encounters water resistance at the bottom surface 91a of the main body 91. This causes the egi 9 to sink slower, and there is a problem that the egi 9 cannot quickly reach the habitat of the prey.

[0006] The present invention has been made in consideration of these problems, and aims to provide a weight attachment mechanism that can increase the sinking speed of the artificial bait while maintaining the appropriate posture of the body of the artificial bait in the habitat of prey. [Means for solving the problem]

[0007] In order to achieve the above-mentioned object, the present invention provides a weight mounting mechanism for mounting a weight to a body of an artificial lure, comprising a rod provided with a weight mounting section on which the weight is mounted, and an axis section supporting the rod, wherein the axis section supports the rod so that the body of the artificial lure and the rod are rotatable relative to each other, and further comprises a rotation regulating section which regulates the rotation of the body of the artificial lure relative to the rod between a first position where the angle formed by the rod and the longitudinal axis of the artificial lure body is a first angle, and a second position where the angle formed by the rod and the longitudinal axis is a second angle smaller than the first angle.

[0008] According to this configuration, the artificial bait sinks in a position in which the weight arranged in the weight arrangement section of the rod is located at the bottom end. When the artificial bait starts to sink, the body of the artificial bait rotates relative to the rod due to water resistance and is located in a first position. The first position is a position where the angle between the rod and the longitudinal axis of the artificial bait body is a first angle, and this first angle is larger than a second angle described below. This reduces the water resistance that the body of the artificial bait experiences when it sinks, making it possible to increase the sinking speed of the artificial bait.

[0009] On the other hand, after the lure reaches the habitat of the prey, the lure body rotates in the opposite direction from the first position due to its own weight and is positioned at the second position. The second position is a position where the angle between the rod and the longitudinal axis of the lure body is a second angle, and this second angle is smaller than the first angle. Therefore, after the lure reaches the habitat of the prey, the longitudinal axis of the lure body is in a position closer to horizontal than when the lure sinks, making it possible to maintain an appropriate position of the lure body when luring the prey.

[0010] In the present invention, preferably, the weight attachment mechanism further includes a groove in which the rod and the shaft are disposed, and the rotation restricting portion is a surface provided in the vicinity of the groove and adapted to come into contact with the rod.

[0011] According to this configuration, it is possible to restrict the rotation of the main body of the artificial bait relative to the rod between the first position and the second position while making the weight attachment mechanism of a simple configuration.

[0012] In the present invention, preferably, the shaft portion supports a portion of the rod between one end and the other end, the weight placement portion is provided on the rod closer to the one end than the shaft portion, and the fishing line connection portion to which the fishing line is connected is provided on the rod closer to the other end than the shaft portion.

[0013] According to this configuration, since both the sinker arrangement section and the fishing line connection section are provided on the rod, when the user pulls the fishing line to swing the artificial bait and attract prey, the sinker arranged on the sinker arrangement section can smoothly follow the movement, thereby improving the operability of the artificial bait.

[0014] In the present invention, the fishing line connection portion is preferably formed so as to protrude in a direction away from the main body of the artificial lure when the main body of the artificial lure is placed in the first position.

[0015] With this configuration, even when the artificial bait body is in the first position, the fishing line connected to the fishing line connecting part can be separated from the artificial bait body, which makes it possible to prevent the fishing line from becoming entangled in the artificial bait body or a hook or the like attached to the artificial bait body.

[0016] In the present invention, the fishing line connecting portion is preferably formed by bending the rod.

[0017] With this configuration, it is possible to provide the fishing line connection portion on the rod while reducing the number of parts and manufacturing costs.

[0018] In the present invention, the length of the rod is preferably set so that when the lure body is positioned in the second position, the vertical distance from the weight arrangement portion to the lure body is in the range of 5 cm to 15 cm.

[0019] According to this configuration, when the sinker arranged in the sinker arrangement section reaches the seabed and the lure is arranged near the seabed, the vertical distance from the seabed to the main body of the lure is about 5 to 15 cm. According to the inventors' research, it is believed that by arranging the main body of the lure in this position, it is possible to increase visibility, especially from cuttlefish, and it has been confirmed that this actually improves the catch. It also becomes possible to prevent the hooks attached to the main body of the lure from getting caught on obstacles on the seabed.

[0020] In the present invention, the weight attachment structure preferably includes a connection member that is detachably connected to the main body of the artificial lure, and the shaft portion and the rotation restricting portion are provided on the connection member.

[0021] According to this configuration, it is possible to impart the functionality of the weight attachment mechanism of the present invention to a ready-made artificial bait that can be used for fishing by itself.

[0022] In the present invention, the connecting member is preferably formed with an opening, and the opening is configured to allow a fishing line connecting part, which is provided on the main body of the artificial lure and to which a fishing line is connected, to pass therethrough.

[0023] With this configuration, even if the connecting member suddenly falls off the main body of the artificial bait during fishing, the movement of the connecting member is restricted by the fishing line connected to the fishing line connecting part, making it possible to prevent the connecting member from being lost. Effect of the Invention

[0024] According to the present invention, it is possible to provide a weight attachment mechanism that can increase the sinking speed of the lure while maintaining the proper posture of the lure body in the habitat of prey. [Brief description of the drawings]

[0025] [Figure 1] FIG. 2 is a perspective view showing an egi equipped with a weight attachment mechanism according to the first embodiment. [Diagram 2] FIG. 2 is an exploded perspective view showing the squid jig of FIG. 1. [Diagram 3] FIG. 3 is a cross-sectional view of the body of the egi taken along line III-III in FIG. [Figure 4] FIG. 2 is an explanatory diagram showing how the squid jig in FIG. 1 sinks. [Diagram 5] FIG. 5 is a cross-sectional view of the egi of FIG. [Figure 6] FIG. 2 is an explanatory diagram showing how the egi of FIG. 1 moves near the seabed. [Figure 7] FIG. 7 is a cross-sectional view of the egi of FIG. [Figure 8] FIG. 11 is a perspective view showing an attachment equipped with a weight mounting mechanism according to a second embodiment and an egi to which the attachment is connected. [Figure 9] FIG. 9 is an exploded perspective view showing the attachment and the squid jig shown in FIG. 8. [Figure 10] 9 is a cross-sectional view of the attachment taken along line XX in FIG. 8. [Figure 11] FIG. 9 is an explanatory diagram showing how the squid jig in FIG. 8 sinks. [Figure 12] FIG. 12 is a cross-sectional view of the attachment of FIG. 11. [Figure 13] FIG. 9 is an explanatory diagram showing the manner in which the egi of FIG. 8 moves near the seabed. [Figure 14] FIG. 14 is a cross-sectional view of the attachment of FIG. 13. [Figure 15] FIG. 1 is an explanatory diagram showing how the egi described in Patent Document 1 sinks. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0026] Hereinafter, an embodiment will be described with reference to the accompanying drawings. In order to facilitate understanding of the description, the same components in each drawing are denoted by the same reference numerals as much as possible, and duplicated description will be omitted.

[0027] First Embodiment First, the configuration of the weight attachment mechanism 11 according to the first embodiment will be described with reference to Fig. 1 to Fig. 3. Fig. 1 is a perspective view showing the egi 1 equipped with the weight attachment mechanism 11. Fig. 2 is an exploded perspective view showing the egi 1. Fig. 3 is a cross-sectional view of the main body 2 of the egi 1 taken along line III-III in Fig. 1, showing an enlarged view of the vicinity of a groove 12 described later.

[0028] The squid jig 1 is an example of the "artificial bait" according to the present invention, and is used for fishing for squid that live near the seabed. The squid jig 1 includes a main body 2, a cap hook 3, and a sinker attachment mechanism 11.

[0029] The main body 2 is formed of a plastic material such as ABS resin. Its appearance imitates a creature that squids like to prey on, and it has an elongated shape extending along a longitudinal axis L1 from a front end 21 to a rear end 22. The longitudinal axis L1 is an imaginary straight line passing through the inside of the main body 2. FIG. 1 shows, as an example, the longitudinal axis L1 passing through a shaft member 14 described later.

[0030] In this specification, as shown in Figs. 1 and 2, the vertically upward direction is referred to as "up" and the vertically downward direction is referred to as "down". For convenience of explanation, the horizontal direction in which the front end 21 of the main body 2 faces is referred to as "front", and the direction in which the rear end 22 faces is referred to as "rear". Furthermore, the horizontal direction to the left when facing forward is referred to as "left", and the right direction is referred to as "right". The front-to-rear dimension of the main body 2 is greater than the vertical and left-to-right dimensions of the main body 2. Such a posture of the egi 1 does not limit the use of the weight attachment mechanism according to the present invention.

[0031] As shown in FIG. 2, the main body 2 is composed of divided bodies 2a and 2b. The divided bodies 2a and 2b have plane-symmetric shapes in the left-right direction. A gap 23 is formed in the center of the divided bodies 2a and 2b in the front-rear direction. A plurality of ribs 24 for increasing the rigidity of the divided bodies 2a and 2b are provided in the gap 23. A notch 121 is formed in the divided body 2a, and a notch 122 is formed in the divided body 2b. Furthermore, a through hole 123 is formed in the notch 121, and a through hole 124 is formed in the notch 122. The through holes 123 and 124 have a circular cross section and penetrate the divided bodies 2a and 2b in the left-right direction.

[0032] The divided bodies 2a and 2b are integrated by welding them together at the symmetrical plane. After the divided bodies 2a and 2b are integrated, the cloth 25 shown in Fig. 1 is attached to the outer surface. The cloth 25 is colored to imitate the colors and patterns of creatures that squids like to prey on.

[0033] The cap needle 3 is fixed to the rear end portion 22 of the main body 2. The cap needle 3 has a plurality of needles 31 arranged radially. The tips of the needles 31 are all directed forward.

[0034] The weight attachment mechanism 11 is provided at the front end 21 of the main body 2. The weight attachment mechanism 11 has a groove portion 12, a rod 13, and a shaft member 14.

[0035] The groove 12 is formed by integrating the divided body 2a and the divided body 2b, and arranging the notch 121 and the notch 122 opposite each other. As shown in FIG. 3, the groove 12 is open at its front end 12a and upper end 12b. A part of the lower end 12c of the groove 12 is covered by a protrusion 125. The groove 12 has a first contact surface 126 which is a curved surface extending between the protrusion 125 and the upper end 12b, and a second contact surface 127 which is the front end of the protrusion 125. The first contact surface 126 and the second contact surface 127 are an example of a "rotation restricting portion" according to the present invention.

[0036] The rod 13 is formed by bending a rod-shaped member using a processing machine. The rod-shaped member is made of a metal material having a certain degree of elasticity, such as stainless steel. As shown in FIG. 2, the rod 13 has a supported portion 131, a weight placement portion 132, and a fishing line connection portion 133.

[0037] The supported portion 131 is provided between one end and the other end of the rod 13. The supported portion 131 is formed by winding a predetermined area of ​​a rod-shaped member, and has an annular shape.

[0038] The weight arrangement portion 132 is provided on one end side of the rod 13 relative to the supported portion 131. A weight 81 made of lead is arranged in the weight arrangement portion 132. In this embodiment, the weight 8 is fixed integrally to the weight arrangement portion 132, but the present invention is not limited to this. In other words, the weight arrangement portion according to the present invention may be configured so that the weight is detachable and the user can selectively arrange a plurality of weights having different weights and shapes.

[0039] The fishing line connecting part 133 is provided on the other end side of the rod 13 relative to the supported part 131. The fishing line connecting part 133 is formed so as to protrude in a direction away from the supported part 131 and has an annular shape. A fishing line 82 (see FIG. 1) supplied from a fishing rod reel (not shown) is connected to the fishing line connecting part 133. The fishing line 82 has, for example, a metal fitting (not shown) attached to its end, and is connected to the fishing line connecting part 133 via this metal fitting.

[0040] The shaft member 14 is a columnar member made of a metal material. The diameter of the shaft member 14 is smaller than that of the supported portion 131 and is set to be approximately the same as the diameter of the through holes 123 and 124. The shaft member 14 is an example of a member constituting the "shaft portion" according to the present invention.

[0041] The weight attachment mechanism 11 is configured by arranging the rod 13 and the shaft member 14 in the groove portion 12. In detail, as shown in FIG. 2, the shaft member 14 is inserted into the supported portion 131 of the rod 13, and the rod 13 is arranged in the groove portion 12 with both ends of the shaft member 14 supported by the inner surfaces of the through holes 123 and 124. As a result, the shaft member 14 supports the supported portion 131 of the rod 13. In addition, the width (here, the left-right dimension) of the groove portion 12 is larger than the width of the rod 13. Therefore, the shaft member 14 supports the rod 13 rotatably around the shaft member 14 as shown by the arrow A1 in FIG. 1. That is, the shaft member 14 supports the rod 13 so that the main body 2 of the squid ji 1 and the rod 13 are rotatable relative to each other.

[0042] [Egi behavior in water] Next, the behavior of the egi 1 in water will be described with reference to Fig. 4 to Fig. 7. Fig. 4 is an explanatory diagram showing the state in which the egi 1 sinks. Fig. 5 is a cross-sectional view of the egi 1 in Fig. 4, showing an enlarged view of the vicinity of the weight attachment mechanism 11. Fig. 6 is an explanatory diagram showing the state in which the egi 1 moves near the seabed surface SB. Fig. 7 is a cross-sectional view of the egi 1 in Fig. 6, showing an enlarged view of the vicinity of the weight attachment mechanism 11. Both Fig. 5 and Fig. 7 show a cross-section of the egi 1 taken along a line corresponding to line III-III in Fig. 1.

[0043] When fishing for squid living near the seabed surface SB (see FIG. 6), the user must sink the squid jig 9 that he or she threw into the sea surface. As shown in FIG. 4, the squid jig 9 sinks in the direction indicated by the arrow A4 with the weight 81 positioned at the bottom end.

[0044] When sinking, the egi 1 encounters resistance from the water at the bottom surface 20 of the main body 2. Therefore, the main body 2 rotates with respect to the rod 13 about the shaft member 14, and is placed in the first position shown in Fig. 4. The first position is a position where the angle between the rod 13 and the longitudinal axis L1 of the main body 2 is θ11. The angle θ11 is an example of the "first angle" according to the present invention.

[0045] When the main body 2 is disposed in the first position, as shown in Fig. 5, the rod 13 abuts against the first abutment surface 126. This restricts further rotation of the main body 2 relative to the rod 13, and the main body 2 is maintained in the first position. In addition, the fishing line connection part 133 of the rod 13 is formed so as to protrude in a direction away from the main body 2 (to the left in Fig. 5) when the main body 2 is in the first position.

[0046] When the egi 1 reaches the vicinity of the seabed surface SB, which is the habitat of the prey, the sinker 81 comes into contact with the seabed surface SB. After that, the main body 2 rotates in the opposite direction from the first position due to its own weight, and is disposed in the second position shown in FIG. 6. The second position is a position where the angle between the rod 13 and the longitudinal axis L1 of the main body 2 is θ21. The angle θ21 is an example of the "second angle" according to the present invention, and is smaller than the above-mentioned angle θ11. In addition, when the main body 2 is disposed in the second position, the vertical distance H1 from the sinker arrangement part 132 to the main body 2 depends on the length of the rod 13. The length of the rod 13 of the egi 1 is set so that the vertical distance H1 is in the range of 5 cm to 15 cm.

[0047] 7, when the main body 2 is disposed in the second position, the rod 13 abuts against the second abutment surface 127. This restricts further rotation of the main body 2 relative to the rod 13, and the main body 2 is maintained in the second position.

[0048] In order to swing the egi 1 to attract prey, the user operates a reel (not shown) to reel in the fishing line 82. As a result, the egi 1 moves in the direction shown by the arrow A6 in FIG. 6, dragging the sinker 81 on the seabed surface SB. During this movement, the main body 2 encounters resistance from the water and swings around the shaft member 14. However, the angle formed between the rod 13 and the longitudinal axis L1 of the main body 2 never becomes smaller than θ21.

[0049] [Effects] Next, the effects of the first embodiment will be described.

[0050] According to the above configuration, when the Egi 1 starts to sink, the body 2 of the Egi 1 rotates with respect to the rod 13 due to the resistance of the water and is placed in the first position. This reduces the water resistance that the body 2 of the Egi 1 receives when the Egi 1 sinks, and makes it possible to increase the sinking speed of the Egi 1. On the other hand, after the Egi 1 reaches the habitat of the prey, the body 2 of the Egi 1 rotates in the opposite direction from the first position due to its own weight and is placed in the second position. This makes it possible to make the longitudinal axis L1 of the body 2 of the Egi 1 closer to horizontal than when the Egi 1 sinks, and to maintain the appropriate posture of the body 2 of the Egi 1 when luring the prey.

[0051] The weight attachment mechanism 11 further includes a groove portion 12 in which the rod 13 and the shaft member 14 are disposed. The first and second contact surfaces 126 and 127, which are rotation restricting portions, are provided in the vicinity of the groove portion 12 and come into contact with the rod 13. This configuration makes it possible to restrict the rotation of the main body 2 of the squid jig 1 relative to the rod 13 between the first and second positions while keeping the weight attachment mechanism 11 in a simple configuration.

[0052] The shaft member 14 also supports a supported portion 131, which is a portion between one end and the other end of the rod 13. The weight placement portion 132 is provided on the rod 13 closer to the one end than the shaft member 14, and the fishing line connection portion 133 to which the fishing line is attached is provided on the rod 13 closer to the other end than the shaft member 14. With this configuration, since both the weight placement portion 132 and the fishing line connection portion 133 are provided on the rod 13, when the user swings the egi 1 and pulls the fishing line 82 to lure the prey, the weight 81 arranged on the weight placement portion 132 can be made to smoothly follow the movement. As a result, the operability of the egi 1 can be improved.

[0053] In addition, the fishing line connecting part 133 is formed to protrude in a direction away from the body 2 of the egi 1 when the body 2 of the egi 1 is in the first position. With this configuration, the fishing line 82 connected to the fishing line connecting part 133 can be separated from the body 2 of the egi 1 even when the body 2 of the egi 1 is in the first position. As a result, it is possible to prevent the fishing line 82 from becoming entangled in the body 2 of the egi 1 or the hook 31 attached to the body 2 of the egi 1.

[0054] Moreover, the fishing line connecting portion 133 is formed by bending the rod 13. This configuration makes it possible to provide the fishing line connecting portion 133 to the rod 13 while suppressing the number of parts and manufacturing costs.

[0055] The length of the rod 13 is set so that the vertical distance from the sinker arrangement part 132 to the body 2 of the egi 1 is in the range of 5 to 15 cm when the rod 13 is in the second position. With this configuration, when the sinker 81 arranged on the sinker arrangement part 132 reaches the seabed surface SB and the egi 1 is arranged near the seabed surface SB, the vertical distance H1 from the seabed surface SB to the body 2 of the egi 1 is about 5 to 15 cm. This is thought to increase the visibility of the egi 1, especially from cuttlefish, and is expected to improve the catch. It is also possible to prevent the hook 31 from getting caught on an obstacle on the seabed surface SB.

[0056] <Second embodiment> Next, the configuration of the weight attachment mechanism 11A according to the second embodiment will be described with reference to Fig. 8 to Fig. 10. Fig. 8 is a perspective view showing the attachment 4 equipped with the weight attachment mechanism 11A and the egi 1A to which the attachment 4 is connected. Fig. 9 is an exploded perspective view showing the attachment 4 and the egi 1A. Fig. 10 is a cross-sectional view of the attachment 4 taken along line XX in Fig. 8, showing only the connection member 5 described below. The same components as those in the first embodiment of the weight attachment mechanism 11A and the egi 1A are designated by the same reference numerals, and the description thereof will be omitted as appropriate.

[0057] The attachment 4 has a sinker attachment mechanism 11A and is detachably connected to the egi 1A. The egi 1A is an artificial bait that can be used for fishing for squid that live near the seabed. When a user wants to increase the sinking speed of the egi 1A or stabilize the behavior of the egi 1A in an area with a fast current, the user can attach a sinker 81 to the egi 1A by connecting the attachment 4 to the egi 1A.

[0058] As shown in FIG. 8, the main body 2A of the egi 1A has an elongated shape extending along a longitudinal axis L2. The longitudinal axis L2 is an imaginary straight line passing through the inside of the main body 2. A pelvic fin portion 26, which imitates the pelvic fin of a fish, is attached to the underside 20A of the main body 2A. The pelvic fin portion 26 is made of a material with a higher specific gravity than the resin used in the main body 2A, and functions as a weight that gives the egi 1A an appropriate weight. A fishing line connecting portion 28 is fixed to a head 27 of the main body 2A. The fishing line connecting portion 28 has a ring shape and protrudes forward from the head 27.

[0059] The weight attachment mechanism 11A has a connection member 5, a groove portion 15, a rod 16, and a shaft member .

[0060] As shown in FIG. 9, the connection member 5 is composed of divided bodies 5a and 5b. The divided bodies 5a and 5b have plane-symmetric shapes in the left-right direction. Furthermore, a notch 151 is formed in the divided body 5a, and a notch 152 is formed in the divided body 5b. As shown in FIG. 10, the connection member 5 has protruding parts 53 and 54 that protrude in connection with the notch 151. Furthermore, a through hole 153 is formed in the notch 151, and a through hole 154 is formed in the notch 152. The through holes 153 and 154 have a circular cross section and penetrate the divided bodies 5a and 5b in the left-right direction. When the divided bodies 5a and 5b are integrated, a gap 57 is formed between them. The gap 57 is opened at an opening 57a formed at the front end of the connection member 5.

[0061] Groove 15 is formed by integrating divided body 5a and divided body 5b and arranging notch 151 and notch 152 opposite each other. As shown in Fig. 10, groove 15 is open at front end 15a and lower end 15b. In addition, a first contact surface 155 extending toward protruding portion 53 and a second contact surface 156 which is the lower end of protruding portion 54 are provided near groove 15. First contact surface 155 and second contact surface 156 are an example of a "rotation restricting portion" according to the present invention.

[0062] Rod 16 is formed by bending a single rod-shaped member using a processing machine. As shown in Fig. 9, rod 16 has a supported portion 161 and a weight arrangement portion 162. Supported portion 161 is provided at one end of rod 16, and weight arrangement portion 162 is formed at the other end of rod 16. Supported portion 161 is formed by winding a predetermined range of a rod-shaped member, and has an annular shape. Weight 81 made of lead is arranged in weight arrangement portion 162.

[0063] The weight attachment mechanism 11A is configured by arranging the rod 16 and the shaft member 14 in the groove portion 15. In detail, as shown in FIG. 9, the shaft member 14 is inserted into the supported portion 161 of the rod 16, and the rod 16 is arranged in the groove portion 15 with both ends of the shaft member 14 supported by the inner surfaces of the through holes 153 and 154. As a result, the shaft member 14 supports the supported portion 161 of the rod 16. Also, the width (here, the left-right dimension) of the groove portion 15 is larger than the width of the rod 16. Therefore, the shaft member 14 supports the rod 16 rotatably around the shaft member 14 as shown by the arrow A8 in FIG. 8. That is, the shaft member 14 supports the rod 16 so that the main body 2 of the squid ji 1 and the rod 16 are rotatable relative to each other.

[0064] The attachment 4 is connected to the egi 1A by inserting the head 27 of the main body 2A into the gap 57 of the connecting member 5. When the attachment 4 is connected to the egi 1A, the fishing line connecting part 28 passes through the opening 57a of the connecting member 5 and protrudes in front of the connecting member 5, as shown in FIG.

[0065] [Egi behavior in water] Next, the behavior of the egi 1A in water will be described with reference to Figs. 11 to 14. Fig. 11 is an explanatory diagram showing the state in which the egi 1A sinks. Fig. 12 is a cross-sectional view of the attachment 4 in Fig. 11, showing an enlarged view of the vicinity of the connection member 5. Fig. 13 is an explanatory diagram showing the state in which the egi 1A moves near the seabed surface SB. Fig. 14 is a cross-sectional view of the attachment 4 in Fig. 13, showing an enlarged view of the vicinity of the connection member 5. Both Figs. 12 and 14 show a cross-section of the connection member 5 taken along a line corresponding to line XX in Fig. 8.

[0066] As shown in Fig. 11, the egi 1A sinks in the direction indicated by the arrow A11 with the weight 81 positioned at the bottom end. When sinking, the egi 1A encounters water resistance at the bottom surface 20A of the main body 2A. Therefore, the main body 2A rotates with respect to the rod 16 about the shaft member 14, and is positioned at the first position shown in Fig. 11. The first position is a position where the angle formed by the rod 13 and the longitudinal axis L2 of the main body 2 is θ12. The angle θ12 is an example of the "first angle" according to the present invention.

[0067] 12, when the main body 2A is disposed in the first position, the rod 16 abuts against the first abutment surface 155. This restricts further rotation of the main body 2A relative to the rod 16, and the main body 2A is maintained in the first position.

[0068] When the egi 1A reaches the vicinity of the seabed surface SB, which is the habitat of the prey, the sinker 81 comes into contact with the seabed surface SB. After that, the main body 2A rotates in the opposite direction from the first position due to its own weight, and is disposed in the second position shown in FIG. 13. The second position is a position where the angle between the rod 16 and the longitudinal axis L2 of the main body 2 is θ22. The angle θ22 is an example of the "second angle" according to the present invention, and is smaller than the above-mentioned angle θ12. In addition, when the main body 2A is disposed in the second position, the vertical distance H2 from the sinker arrangement part 162 to the main body 2A depends on the length of the rod 16. Here, the length of the rod 16 of the egi 1A is set so that the vertical distance H2 is in the range of 5 cm to 15 cm.

[0069] 14, when the main body 2A is disposed in the second position, the rod 16 abuts against the second abutment surface 156. This restricts further rotation of the main body 2A relative to the rod 16, and the main body 2A is maintained in the second position.

[0070] The user operates a reel (not shown) to reel in the fishing line 82 in order to swing the egi 1A and attract prey. As a result, the egi 1A moves in the direction shown by the arrow A13 in FIG. 13, dragging the weight 81 on the seabed surface SB. During this movement, the main body 2A encounters resistance from the water and swings around the shaft member 14. However, the angle between the rod 16 and the longitudinal axis L2 of the main body 2A never becomes smaller than θ22.

[0071] [Effects] Next, the effects of the second embodiment will be described.

[0072] The sinker attachment mechanism 11A includes a connection member 5 that is detachably connected to the main body 2A of the egi 1. The shaft member 14 and the first and second contact surfaces 155 and 156 that are rotation restricting parts are provided on the connection member 5. With this configuration, it is possible to impart the function of the sinker attachment mechanism according to the present invention to a ready-made egi 1A that can be used for fishing by itself.

[0073] The connecting member 5 also has an opening 57a. The opening 57a is configured to allow the fishing line connecting part 28, which is provided on the main body 2A of the egi 1A and to which the fishing line 82 is connected, to pass through. With this configuration, even if the connecting member 5 suddenly falls off the main body 2A of the egi 1A during fishing, the movement of the connecting member 5 is restricted by the fishing line 82 connected to the fishing line connecting part 28. As a result, it is possible to prevent the connecting member 5 from being lost.

[0074] The above describes the embodiments of the present invention with reference to specific examples. However, the present invention is not limited to these specific examples. In other words, those that are modified by those skilled in the art as appropriate to these specific examples are also included in the scope of the present invention as long as they have the characteristics of the present invention. The elements and their arrangements, materials, conditions, shapes, sizes, etc. of the above-mentioned specific examples are not limited to those exemplified, and can be modified as appropriate.

[0075] In the above embodiment, the present invention is applied to an egi used for squid fishing, but the present invention is not limited to this embodiment. The present invention can also be applied to, for example, a lure used for fishing for fish. [Explanation of symbols]

[0076] 1,1A: Egi (fake bait) 2,2A:Main body 11, 11A: Weight attachment mechanism 12,15: Groove 126, 155: First contact surface (rotation restriction part) 127, 156: Second contact surface (rotation restriction part) 13,16: Rod 132,162: Weight arrangement part 133: Fishing line connection part 14: Shaft member (shaft part) 28: Fishing line connection part 5: Connection parts 57a:Aperture L1, L2: Longitudinal axis

Claims

1. A weight attachment mechanism for attaching a weight to a body of an artificial bait, A rod provided with a weight arrangement portion on which a weight is arranged; A shaft portion supporting the rod, the shaft portion supports the rod so that the lure body and the rod can rotate relative to each other; The weight mounting mechanism further includes a rotation regulating part that regulates the rotation of the lure body relative to the rod between a first position where the angle between the rod and the longitudinal axis of the lure body is a first angle, and a second position where the angle between the rod and the longitudinal axis is a second angle smaller than the first angle.

2. The rod and the shaft portion are disposed in a groove portion, The weight attachment mechanism according to claim 1 , wherein the rotation restricting portion is a surface that is provided near the groove and that abuts against the rod.

3. The shaft portion supports a portion of the rod between one end and the other end, The weight arrangement portion is provided on the rod closer to the one end than the shaft portion, 2. The weight attachment mechanism according to claim 1, wherein a fishing line connecting portion to which a fishing line is connected is provided on the rod closer to the other end than the shaft portion.

4. 4. The weight attachment mechanism according to claim 3, wherein the fishing line connection portion is formed so as to protrude in a direction away from the body of the artificial lure when the body of the artificial lure is disposed in the first position.

5. 5. The weight attachment mechanism according to claim 4, wherein the fishing line connection portion is formed by bending the rod.

6. 2. The weight attachment mechanism according to claim 1, wherein the length of the rod is set so that when the artificial bait body is disposed in the second position, the vertical distance from the weight arrangement portion to the artificial bait body is in the range of 5 cm to 15 cm.

7. A connecting member is provided which is detachably connected to the main body of the artificial bait, The weight attachment mechanism according to claim 1 , wherein the shaft portion and the rotation restricting portion are provided on the connecting member.

8. The connection member has an opening formed therein, 8. The weight attachment mechanism according to claim 7, wherein the opening is configured to allow a fishing line connecting portion, which is provided on the body of the artificial bait and to which a fishing line is connected, to pass therethrough.

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