Hammer attachment 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 a lure.

Background Art

[0002] Lures used for fishing have become widespread. For example, in fishing for squid using a lure called "egi (bait tree)", the user swings the lure attached to the fishing line to attract the squid, and hooks the squid that has grabbed the lure on a hook and reels it in.

[0003] The egi 9 proposed in Patent Document 1 is shown in FIG. 15. The egi 9 is mainly used for squid fishing and includes a body 91 formed of a plastic material and a rod-shaped member 92 formed of a metal material. The rod-shaped member 92 passes through the body 91, and one end portion 92a and the other end portion 92b thereof are disposed outside the body 91. A fishing line 93 is connected to one end portion 92a, and a weight 94 is attached to the other end portion 92b.

Prior Art Documents

Patent Documents

[0004]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0005] For example, when targeting squid living near the seabed, the user needs to sink the egi 9 thrown into the sea to near the seabed. At this time, as shown in FIG. 15, the egi 9 sinks in the direction indicated by arrow A15 with the weight 94 positioned at the lower end, and receives water resistance on the lower surface 91a of the body 91. For this reason, the egi 9 has a problem that its sinking speed decreases and it cannot quickly reach the habitat of the prey.

[0006] The present invention has been made in view of such problems, and an object thereof is to provide a weight attachment mechanism capable of maintaining an appropriate posture of the main body of the artificial bait in the habitat of the prey while increasing the sinking speed of the artificial bait.

Means for Solving the Problems

[0007] In order to achieve the above object, the present invention is a weight attachment mechanism for attaching a weight to the main body of an artificial bait, comprising a rod provided with a weight placement portion where the weight is placed, and a shaft portion that supports the rod. The shaft portion supports the rod so that the main body of the artificial bait and the rod can rotate relative to each other, and further includes a rotation restricting portion that restricts the rotation of the main body of the artificial bait with respect to the rod between a first position where the angle formed by the rod and the longitudinal axis of the main body of the artificial bait 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 posture where the weight placed on the weight placement portion of the rod is located at the lower end. When the artificial bait starts to sink, the main body of the artificial bait rotates with respect to the rod under the resistance of water and is arranged at the first position. The first position is a position where the angle formed by the rod and the longitudinal axis of the main body of the artificial bait is the first angle, and this first angle is larger than the second angle described later. Therefore, when the artificial bait sinks, the resistance of water received by the main body of the artificial bait can be reduced, and the sinking speed of the artificial bait can be increased.

[0009] On the other hand, after the artificial bait reaches the habitat of the prey, the main body of the artificial bait rotates in a direction opposite to the first position due to its own weight and is arranged at the second position. The second position is a position where the angle formed by the rod and the longitudinal axis of the main body of the artificial bait is the second angle, and this second angle is smaller than the first angle. Therefore, after the artificial bait reaches the habitat of the prey, the longitudinal axis of the main body of the artificial bait can be in a posture closer to horizontal compared to when the artificial bait sinks, and an appropriate posture of the main body of the artificial bait can be maintained when attracting the prey.

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

[0011] According to this configuration, while the weight attachment mechanism has a simple configuration, it becomes possible to restrict the rotation of the main body of the pseudo-bait with respect to the rod between the first position and the second position.

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

[0013] According to this configuration, since both the weight arrangement portion and the fishing line connection portion are provided on the rod, when the user pulls the fishing line to swing the pseudo-bait to attract prey, the weight arranged in the weight arrangement portion can smoothly follow the movement. As a result, it becomes possible to improve the operability of the pseudo-bait.

[0014] In the present invention, preferably, the fishing line connection portion is formed so as to protrude in a direction away from the main body of the pseudo-bait when the main body of the pseudo-bait is disposed at the first position.

[0015] According to this configuration, even when the main body of the pseudo-bait is at the first position, the fishing line connected to the fishing line connection portion and the main body of the pseudo-bait can be separated. As a result, it becomes possible to prevent the fishing line from getting caught on the main body of the pseudo-bait or a needle or the like attached to the main body of the pseudo-bait.

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

[0017] According to this configuration, it becomes possible to provide the fishing line connection portion on the rod while suppressing the number of parts and the manufacturing cost.

[0018] In the present invention, preferably, the length of the rod is set such that when the main body of the artificial lure is disposed at the second position, the vertical distance from the weight placement portion to the main body of the artificial lure is in the range of 5 cm to 15 cm.

[0019] According to this configuration, when the weight disposed in the weight placement portion reaches the seabed and the artificial lure is disposed in the vicinity of the seabed, the vertical distance from the seabed to the main body of the artificial lure is about 5 cm to 15 cm. According to the study by the present inventors, it is considered that the visibility from the amberjack is particularly enhanced by disposing the main body of the artificial lure at this position, and it has been confirmed that the fishing result is actually improved. In addition, it is also possible to prevent a situation in which a needle or the like attached to the main body of the artificial lure is caught by an obstacle existing on the seabed surface.

[0020] Good Preferably, the weight attachment structure 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 becomes possible to impart the function of the attachment mechanism to a commercially available artificial lure that can be used for fishing by itself. 、 Hammer It becomes possible to impart the function of the attachment mechanism.

[0022] Good Preferably, the connection member has an opening formed therein, and the opening is configured to allow insertion of a fishing line connection portion provided on the main body of the artificial lure and connected to the fishing line.

[0023] According to this configuration, even when the connection member accidentally falls off from the main body of the artificial lure during fishing, the movement of the connection member is restricted by the fishing line connected to the fishing line connection portion. As a result, it becomes possible to prevent loss of the connection member.

Effect of the Invention

[0024] According to the present invention, it is possible to provide a weight attachment mechanism capable of maintaining an appropriate posture of the main body of the artificial lure in the habitat of the prey while increasing the sinking speed of the artificial lure.

Brief Description of the Drawings

[0025]

Figure 1

Figure 2

Figure 3

Figure 4

Figure 5

Figure 6

Figure 7

Figure 8

Figure 9

Figure 10

Figure 11

Figure 12

Figure 13

Figure 14

Figure 15

Mode for Carrying Out the Invention

[0026] Hereinafter, embodiments will be described with reference to the accompanying drawings. For ease of understanding of the description, the same reference numerals are given to the same components in each drawing as much as possible, and redundant descriptions are omitted.

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

[0028] The jig 1 is an example of the "pseudo-bait" according to the present invention and is used for fishing targeting squid living near the seabed. The jig 1 includes a main body 2, a hook needle 3, and a weight attachment mechanism 11.

[0029] The main body 2 is formed of a plastic material such as ABS resin. Its appearance imitates organisms that squid prefer to prey on and has an elongated shape extending along the longitudinal axis L1 from the front end portion 21 to the rear end portion 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 the 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". Also, for convenience of explanation, the horizontal direction and the direction in which the front end portion 21 of the main body 2 faces is referred to as "front", and the direction in which the rear end portion 22 faces is referred to as "rear". Further, in the horizontal direction, when facing forward, the left direction is referred to as "left" and the right direction is referred to as "right". The front-rear dimension of the main body 2 is larger than the up-down dimension and the left-right dimension of the main body 2. Such an attitude of the jig 1 does not limit the usage mode 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 shapes that are mirror-symmetrical to each other in the left-right direction. In the central part of the divided bodies 2a and 2b in the front-rear direction, a gap 23 is formed. In the gap 23, a plurality of ribs 24 are provided to enhance the rigidity of the divided bodies 2a and 2b. Further, 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 on the symmetry plane. After the divided bodies 2a and 2b are integrated, a cloth 25 shown in FIG. 1 is attached to the outer surface thereof. The cloth 25 is colored to imitate the colors and patterns of organisms that squids prefer to prey on.

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

[0034] The weight attachment mechanism 11 is provided at the front end portion 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 portion 12 is formed by integrating the divided body 2a and the divided body 2b and arranging the notch 121 and the notch 122 to face each other. As shown in FIG. 3, the groove portion 12 has its front end portion 12a and upper end portion 12b open. Also, a part of the lower end portion 12c of the groove portion 12 is covered by a protruding portion 125. The groove portion 12 has a first contact surface 126 that is a curved surface extending between the protruding portion 125 and the upper end portion 12b, and a second contact surface 127 that is the front end portion of the protruding portion 125. The first contact surface 126 and the second contact surface 127 are an example of the "rotation restricting portion" according to the present invention.

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

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

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

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

[0040] The shaft member 14 is a cylindrical member formed 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 substantially the same as the diameters 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. Specifically, as shown in FIG. 2, with the shaft member 14 inserted through the supported portion 131 of the rod 13 and both ends of the shaft member 14 supported by the inner surfaces of the through holes 123 and 124, the rod 13 is arranged in the groove portion 12. Thereby, the shaft member 14 supports the supported portion 131 of the rod 13. Also, the width of the groove portion 12 (here, the dimension in the left - right direction) is larger than the width of the rod 13. For this reason, as shown by the arrow A1 in FIG. 1, the shaft member 14 rotatably supports the rod 13 about the shaft member 14. That is, the shaft member 14 supports the rod 13 so that the main body 2 of the fishing rod 1 and the rod 13 can rotate relative to each other.

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

[0043] When targeting squid living near the seabed surface SB (see FIG. 6) as prey, the user needs to sink the fishing rod 9 thrown into the sea surface. As shown in FIG. 4, the fishing rod 9 sinks in the direction indicated by the arrow A4 with the weight 81 positioned at the lower end.

[0044] During sinking, the fishing rod 1 receives water resistance on the lower surface 20 of the main body 2. For this reason, the main body 2 rotates relative to the rod 13 about the shaft member 14 and is arranged at the first position shown in FIG. 4. The first position is a position where the angle formed by 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 at the first position, as shown in FIG. 5, the rod 13 is in contact with the first contact surface 126. Thereby, further rotation of the main body 2 with respect to the rod 13 is restricted, and the main body 2 is maintained at the first position. Further, the fishing line connection portion 133 of the rod 13 is formed so as to protrude in a direction away from the main body 2 (left direction in FIG. 5) when the main body 2 is at the first position.

[0046] When the jig 1 reaches the vicinity of the seabed surface SB, which is the habitat of the prey, the weight 81 comes into contact with the seabed surface SB. Thereafter, the main body 2 rotates in a direction opposite to the first position due to its own weight and is disposed at the second position shown in FIG. 6. The second position is a position where the angle formed by 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-described angle θ11. Further, when the main body 2 is disposed at the second position, the vertical distance H1 from the weight placement portion 132 to the main body 2 depends on the length of the rod 13. The length of the rod 13 of the jig 1 is set such that the vertical distance H1 is in the range of 5 cm to 15 cm.

[0047] Further, when the main body 2 is disposed at the second position, as shown in FIG. 7, the rod 13 is in contact with the second contact surface 127. Thereby, further rotation of the main body 2 with respect to the rod 13 is restricted, and the main body 2 is maintained at the second position.

[0048] The user operates a reel (not shown) to wind up the fishing line 82 in order to swing the jig 1 to attract the prey. Thereby, the jig 1 moves in the direction indicated by the arrow A6 in FIG. 6 by dragging the weight 81 on the seabed surface SB. The main body 2 receives the resistance of water during this movement and swings about the shaft member 14. However, the angle formed by the rod 13 and the longitudinal axis L1 of the main body 2 does not become smaller than θ21.

[0049] [Function and Effect] Next, the function and effect based on the first embodiment will be described.

[0050] According to the above configuration, when the eel 1 starts to sink, the main body 2 of the eel 1 rotates with respect to the rod 13 under the resistance of water and is arranged at the first position. Therefore, when the eel 1 sinks, the resistance of water received by the main body 2 of the eel 1 can be reduced, and the sinking speed of the eel 1 can be increased. On the other hand, after the eel 1 reaches the habitat of the prey, the main body 2 of the eel 1 rotates in the direction opposite to the first position due to its own weight and is arranged at the second position. Therefore, the longitudinal axis L1 of the main body 2 of the eel 1 is in a posture closer to the horizontal compared to when the eel 1 sinks, and it becomes possible to maintain an appropriate posture of the main body 2 of the eel 1 when attracting the prey.

[0051] In addition, the weight attachment mechanism 11 further includes a groove portion 12 in which the rod 13 and the shaft member 14 are arranged. Also, the first contact surface 126 and the second contact surface 127, which are rotation restricting portions, are surfaces provided in the vicinity of the groove portion 12 and in contact with the rod 13. According to this configuration, while the weight attachment mechanism 11 has a simple configuration, it becomes possible to restrict the rotation of the main body 2 of the eel 1 with respect to the rod 13 between the first position and the second position.

[0052] In addition, the shaft member 14 supports a supported portion 131, which is a portion between one end and the other end of the rod 13. The weight arrangement portion 132 is provided on one end side of the rod 13 with respect to the shaft member 14, and a fishing line connection portion 133 to which the fishing line is attached is provided on the other end side of the rod 13 with respect to the shaft member 14. According to this configuration, since both the weight arrangement portion 132 and the fishing line connection portion 133 are provided on the rod 13, when the user pulls the fishing line 82 to swing the eel 1 to attract the prey, the weight 81 arranged at the weight arrangement portion 132 can smoothly follow its movement. As a result, it becomes possible to improve the operability of the eel 1.

[0053] In addition, the fishing line connection part 133 is formed so as to protrude in a direction away from the main body 2 of the jig 1 when the main body 2 of the jig 1 is in the first position. According to this configuration, even when the main body 2 of the jig 1 is in the first position, the fishing line 82 connected to the fishing line connection part 133 and the main body 2 of the jig 1 can be separated. As a result, it is possible to prevent the fishing line 82 from getting caught on the main body 2 of the jig 1 or the needle 31 attached to the main body 2 of the jig 1.

[0054] In addition, the fishing line connection part 133 is formed by bending the rod 13. According to this configuration, it is possible to provide the fishing line connection part 133 on the rod 13 while suppressing the number of parts and the manufacturing cost.

[0055] In addition, the length of the rod 13 is set so that when the rod 13 is in the second position, the vertical distance from the weight placement part 132 to the main body 2 of the jig 1 is in the range of 5 cm to 15 cm. According to this configuration, when the weight 81 arranged in the weight placement part 132 reaches the seabed surface SB and the jig 1 is arranged in the vicinity of the seabed surface SB, the vertical distance H1 from the seabed surface SB to the main body 2 of the jig 1 is about 5 cm to 15 cm. Thereby, it is considered that the visibility of the jig 1 from the octopus is particularly enhanced, and an improvement in the fishing result can be expected. In addition, it is also possible to prevent the needle 31 from being caught on an obstacle existing on the seabed surface SB.

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

[0057] The attachment 4 has a weight attachment mechanism 11A and is detachably connected to the jig 1A. The jig 1A is a lure that can be used for fishing with squid living near the seabed as prey. When the user wants to increase the sinking speed of the jig 1A or wants to stabilize the behavior of the jig 1A in a sea area with a fast tidal current, etc., the user can attach the weight 81 to the jig 1A by connecting the attachment 4 to the jig 1A.

[0058] As shown in FIG. 8, the main body 2A of the jig 1A has an elongated shape extending along the longitudinal axis L2. The longitudinal axis L2 is an imaginary straight line passing through the inside of the main body 2. On the lower surface 20A of the main body 2A, a belly fin portion 26 imitating the ventral fin of a fish is attached. The belly fin portion 26 is formed of a material having a specific gravity greater than that of the resin used for the main body 2A and functions as a weight to give the jig 1A an appropriate weight. A fishing line connection portion 28 is fixed to the head portion 27 of the main body 2A. The fishing line connection portion 28 has an annular shape and protrudes forward from the head portion 27.

[0059] The weight attachment mechanism 11A has a connection member 5, a groove portion 15, a rod 16, and a shaft member 14.

[0060] As shown in FIG. 9, the connection member 5 is composed of split bodies 5a and 5b. The split bodies 5a and 5b have shapes that are symmetric with each other in the left - right direction. Further, a notch 151 is formed in the split body 5a, and a notch 152 is formed in the split body 5b. As shown in FIG. 10, the connection member 5 has protruding portions 53 and 54 that project in connection with the notch 151. Further, 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 split bodies 5a and 5b in the left - right direction. When the split body 5a and the split body 5b are integrated, a gap 57 is formed between them. The gap 57 is open at an opening 57a formed at the front end portion of the connection member 5.

[0061] The groove portion 15 is formed by integrating the divided body 5a and the divided body 5b and arranging the notch 151 and the notch 152 to face each other. As shown in FIG. 10, the groove portion 15 has its front end portion 15a and lower end portion 15b open. Further, in the vicinity of the groove portion 15, a first contact surface 155 extending toward the protruding portion 53 and a second contact surface 156 which is the lower end portion of the protruding portion 54 are provided. The first contact surface 155 and the second contact surface 156 are 、「 an example of a "rotation restricting portion".

[0062] The rod 16 is formed by bending a single rod-shaped member using a processing machine. As shown in FIG. 9, the rod 16 has a supported portion 161 and a weight arrangement portion 162. The supported portion 161 is provided at one end portion of the rod 16, and the weight arrangement portion 162 is formed at the other end portion of the rod 16. The supported portion 161 is formed by winding a predetermined range of the rod-shaped member and has an annular shape. A weight 81 made of lead is arranged in the 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. Specifically, as shown in FIG. 9, with the shaft member 14 inserted through the supported portion 161 of the rod 16 and both ends of the shaft member 14 supported by the inner surfaces of the through holes 153 and 154, the rod 16 is arranged in the groove portion 15. Thereby, the shaft member 14 supports the supported portion 161 of the rod 16. Further, the width of the groove portion 15 (here, the dimension in the left-right direction) is larger than the width of the rod 16. For this reason, the shaft member 14 supports the rod 16 so as to be rotatable about 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 oar 1 and the rod 16 can rotate relative to each other.

[0064] The attachment 4 is connected to the oar 1A by inserting the head portion 27 of the main body 2A into the gap 57 of the connecting member 5. When the attachment 4 is connected to the oar 1A, as shown in FIG. 8, the fishing line connecting portion 28 passes through the opening 57a of the connecting member 5 and projects forward of the connecting member 5.

[0065] [Behavior of the Egg in Water] Next, with reference to FIGS. 11 to 14, the behavior of the egg 1A in water will be described. FIG. 11 is an explanatory diagram showing the state in which the egg 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 connecting member 5. FIG. 13 is an explanatory diagram showing the state in which the egg 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 connecting member 5. FIGS. 12 and 14 both show the cross-section of the connecting member 5 along the line corresponding to the X-X line in FIG. 8.

[0066] As shown in FIG. 11, the egg 1A sinks in the direction indicated by the arrow A11 in a posture where the weight 81 is located at the lower end. When sinking, the egg 1A receives water resistance on the lower surface 20A of the main body 2A. For this reason, the main body 2A rotates with respect to the rod 16 about the shaft member 14 and is arranged 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".

[0067] When the main body 2A is arranged at the first position, as shown in FIG. 12, the rod 16 is in contact with the first contact surface 155. Thereby, further rotation of the main body 2A with respect to the rod 16 is restricted, and the main body 2A is maintained at the first position.

[0068] When the egg 1A reaches near the seabed surface SB, which is the habitat of the prey, the weight 81 comes into contact with the seabed surface SB. Thereafter, the main body 2A rotates in the direction opposite to the first position due to its own weight and is arranged at the second position shown in FIG. 13. The second position is a position where the angle formed by the rod 16 and the longitudinal axis L2 of the main body 2 is θ22. The angle θ22 is 、「It is an example of the "second angle" and is smaller than the angle θ12 described above. Further, when the main body 2A is disposed at the second position, the vertical distance H2 from the weight arrangement portion 162 to the main body 2A depends on the length of the rod 16. Here, the length of the rod 16 of the fishing rod 1A is set such that the vertical distance H2 is in the range of 5 cm to 15 cm.

[0069] Further, when the main body 2A is disposed at the second position, as shown in FIG. 14, the rod 16 is in contact with the second contact surface 156. Thereby, further rotation of the main body 2A with respect to the rod 16 is restricted, and the main body 2A is maintained at the second position.

[0070] The user operates a reel (not shown) to wind up the fishing line 82 in order to swing the fishing rod 1A to attract prey. Thereby, the fishing rod 1A moves in the direction indicated by the arrow A13 in FIG. 13 so as to drag the weight 81 on the seabed surface SB. The main body 2A receives water resistance during this movement and swings about the shaft member 14. However, the angle formed by the rod 16 and the longitudinal axis L2 of the main body 2A does not become smaller than θ22.

[0071] [Operational effects] Next, the operational effects based on the second embodiment will be described.

[0072] The weight attachment mechanism 11A includes a connecting member 5 that is detachably connected to the main body 2A of the fishing rod 1. The shaft member 14, and the first contact surface 155 and the second contact surface 156 which are rotation restricting portions, are provided on the connecting member 5. According to this configuration, for a commercially available fishing rod 1A that can be used for fishing by itself 、 Hammer it becomes possible to impart the function of the attachment mechanism.

[0073] Further, the connecting member 5 has an opening 57a formed therein. The opening 57a is configured to allow insertion of a fishing line connecting portion 28 provided on the main body 2A of the jig 1A and to which a fishing line 82 is connected. According to this configuration, even if the connecting member 5 accidentally detaches from the main body 2A of the jig 1A during fishing, the movement of the connecting member 5 is restricted by the fishing line 82 connected to the fishing line connecting portion 28. As a result, it becomes possible to prevent the loss of the connecting member 5.

[0074] The embodiments of the present invention have been described above with reference to specific examples. However, the present invention is not limited to these specific examples. That is, those obtained by appropriately modifying the design by those skilled in the art for these specific examples are also included in the scope of the present invention as long as they have the features of the present invention. Each element included in the above-described specific examples and its arrangement, material, conditions, shape, size, etc. are not limited to those illustrated and can be appropriately changed.

[0075] The above embodiment is one in which the present invention is applied to a jig used for squid fishing, but the present invention is not limited to this form. The present invention can also be applied to, for example, lures used for fishing targeting fish.

Explanation of Reference Numerals

[0076] 1, 1A: Jig (Pseudo Bait) 2, 2A: Main Body 11, 11A: Sinker Attachment Mechanism 12, 15: Groove 126, 155: First Contact Surface (Rotation Restriction Portion) 127, 156: Second Contact Surface (Rotation Restriction Portion) 13, 16: Rod 132, 162: Sinker Arrangement Portion 133: Fishing Line Connecting Portion 14: Shaft Member (Shaft Portion) 28: Fishing Line Connecting Portion 5: Connecting Member 57a: Opening L1, L2: Longitudinal Axis

Claims

1. A weight attachment mechanism for attaching a weight to the body of a dummy bait, comprising: a rod provided with a weight placement portion where the weight is disposed; a shaft portion that supports the rod; a groove portion provided in the body of the dummy bait and in which the rod and the shaft portion are disposed; and the shaft portion supports the rod such that the body of the dummy bait and the rod are rotatable relative to each other, the rotation of the body of the dummy bait relative to the rod is further restricted between a first position where the angle formed by the rod and the longitudinal axis of the body of the dummy bait 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, the rotation restricting portion is a first contact surface and a second contact surface provided on the body of the dummy bait, and the rotation of the body of the dummy bait relative to the rod is restricted by the rod contacting the first contact surface when the body of the dummy bait is disposed at the first position, and is restricted by the rod contacting the second contact surface when the body of the dummy bait is disposed at the second position, the rod is formed by bending a single rod-shaped member made of a metal material, and has a supported portion provided between one end and the other end of the rod and supported by the shaft portion, a weight placement portion provided on the rod on the one end side of the supported portion, and a fishing line connection portion provided on the rod on the other end side of the supported portion to which the fishing line is connected. The weight attachment mechanism.

2. The fishing line connection portion is formed so as to protrude in a direction away from the body of the dummy bait when the body of the dummy bait is disposed at the first position. The weight attachment mechanism according to claim 1.

3. The fishing line connection portion is formed by bending the rod. The weight attachment mechanism according to claim 2.

4. The length of the rod is set such that when the body of the dummy bait is disposed at the second position, the vertical distance from the weight placement portion to the body of the dummy bait is in the range of 5 cm to 15 cm. The weight attachment mechanism according to claim 1.

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