JP2007209229A - Lure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a centroid-shifting type lure 12 having the hook 28 fiexed on the body 14. <P>SOLUTION: The lure 12 is equipped with a magnet piece 16 and a weight 18 in the guide room 32 of the body 14. The weight 18 is made movable in the longitudinal direction in the guide room 32. The first hook 28 is attached to the body 14. The maximum magnet integral of the magnet piece 16 is more than 8 MGOe. The weight 18 is made of an alloy constituted by sintering a powder including 3 to 15 mass% of Ni, 4 to 15 mass% of Fe and 50 to 93 mass% of W. The first hook 28 is made of a magnetic material. The magnet piece 16 attracts the weight 18 and the first hook 28 with the magnet force. The first hook 28 is equipped with a shank and a bend that following the shank. In the state that this first hook 28 is fixed to the body, the magnet piece 16 is positioned directly on the boundary point P2 between the shank and the bend. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a lure used for fishing. More particularly, the present invention relates to a gravity center moving lure.

  Large fish such as largemouth bass, yellowtail and their juveniles, sea bass, etc. feed on small fish as baits. These large fish are called fish eaters. Lure fishing is widely used as a means of capturing fish eaters. In lure fishing, lures are used. FIG. 6 is a front view showing a conventional lure 2. The lure 2 includes a body 4, a line eye 6, and two hooks 8. A line 10 is connected to the line eye 6. The lure 2 flies through the air by casting, and eventually landed. As the line 10 is wound, the lure 2 swims underwater. The fish eater who misunderstood this lure 2 as bait bites into lure 2. The hook 8 attached to the lure 2 is stuck in the fish eater and the fish eater is picked up.

  At the time of casting or retrieving, as shown by the two-dot chain line in FIG. This entanglement impedes the action of lure 2 in water. Moreover, the hooking rate of the fish eater that has eaten the lure 2 is reduced due to the entanglement.

  There has been proposed a lure with a built-in magnet capable of magnetically attaching a hook. In this lure, the hook is fixed at a predetermined position by magnetic adhesion. This fixing prevents the hook from wrapping around the back.

  An angler may want to cast a lure far away. As mentioned above, lures fly in the air. During flight, the lure receives air resistance. Lures with low air resistance can be cast far away.

  As mentioned above, the fish eater bites into this lure by mistaking it as bait. The lure's underwater posture and action need to be misleading by the fish eater.

Japanese Patent Laid-Open No. 2001-299154 discloses a gravity center moving lure. In this lure, the weight built in the body can move in the front-rear direction. When flying in the air, the weight is located on the rear side (that is, the caudal side). In other words, the center of gravity of the lure during flight is rearward. The lure flies with the tail at the head. Since the air resistance in this flight position is small, the lure can be cast away. After landing, the weight is pulled by the magnet and moves to the front side. Underwater, the weight is located on the front side. In other words, the center of gravity of the lure in water is forward. The position of the center of gravity contributes to the lure's underwater posture and action. In this type of lure, a ferrite magnet is generally used. Further, in this type of lure, the weight is made of a ferromagnetic material (specifically, carbon steel).
JP 2001-299154 A

  Thus, a lure whose hook can be fixed by a magnet is known, and a lure in which a weight moves by a magnet is also known. Anglers want a lure with both functions. An object of the present invention is to provide a lure in which a hook can be fixed to a body and a center of gravity can move.

  The lure according to the present invention is incorporated in the body, a magnet piece fixed to the body, a hook made of a magnetic material attached to the body, and movable in the front-rear direction. And a weight made of a magnetically adherent material. This magnet piece can fix a hook to a body by magnetic attachment. This magnet piece can pull the weight forward by magnetic attachment. In the present invention, “magnetic adhesion” means a property that can be attracted to a magnet.

  The hook includes a shank and a bend continuous with the shank. Preferably, in a state where the hook is fixed to the body, the magnet piece is positioned immediately above the boundary point P2 between the shank and the bend.

  Preferably, the magnet piece is made of a rare earth magnet. Preferably, the maximum magnetic energy product of the magnet pieces is 8 MGOe or more.

  Preferably, the weight has W as a main component and contains Fe or Ni. Preferably, the weight is made of an alloy obtained by sintering a powder containing Ni of 3% by mass to 15% by mass and Fe, 4% by mass to 15% by mass of Fe, and 50% by mass to 93% by mass of W. Become.

  Another lure according to the present invention includes a body, a weight made of a magnet built in the body so as to be movable in the front-rear direction, and a magnetized piece made of a magnetized material fixed to the body. And a hook made of a magnetic material and attached to the body. The weight can be attracted to the magnetized piece by magnetizing. With this weight and the magnetized piece magnetized, this weight can fix the hook to the body by magnetic force.

  The hook includes a shank and a bend continuous with the shank. Preferably, in a state where the hook is fixed to the body, the weight is located immediately above the boundary point P2 between the shank and the bend.

  Preferably, the weight is made of a rare earth magnet. Preferably, the maximum magnetic energy product of the weight is 8 MGOe or more.

  Preferably, the magnetized piece contains W as a main component and contains Fe or Ni. Preferably, the magnetized piece is an alloy obtained by sintering powder containing Ni of 3% by mass to 15% by mass of Fe, 4% by mass to 15% by mass of Fe, and 50% by mass to 93% by mass of W. Consists of.

  In the lure according to the present invention, the center of gravity can be moved by the movement of the weight. With this lure, a great flight distance, proper underwater posture and good action can be achieved. With this lure, good action and high hooking rate can be achieved by fixing the hook. In this lure, since the magnet for moving the center of gravity also serves as a magnet for fixing the hook, its structure is not complicated.

  Hereinafter, the present invention will be described in detail based on preferred embodiments with appropriate reference to the drawings.

  FIG. 1 is a partially cutaway sectional view showing a lure 12 according to an embodiment of the present invention. In FIG. 1, the left-right direction is the front-rear direction of the lure 12, and the up-down direction is the body height direction of the lure 12. The lure 12 includes a body 14, a magnet piece 16, a weight 18, a lip 20, a line eye 22, a first eye 24, a second eye 26, a first hook 28, and a second hook 30. The number of hooks 28 and 30 may be 1 or 3 or more.

  The body 14 has an outline similar to a small fish that is a bait. Typically, the body 14 is made of a synthetic resin. A preferred synthetic resin is an ABS resin. The body 14 may be made of a metal material or a wood material. The body 14 is hollow. The body 14 includes a guide chamber 32 extending in the front-rear direction.

  The magnet piece 16 is fixed to the body 14. The magnet piece 16 is located at the front end of the guide chamber 32. In this example, the magnet piece 16 is cylindrical. The magnet piece 16 is made of a ferrite magnet, a rare earth magnet, or the like. From the viewpoint of obtaining a large magnetic force, a rare earth magnet is preferable.

  The weight 18 is built in the body 14. The weight 18 is accommodated in the guide chamber 32. In this example, two weights 18 are accommodated in the guide chamber 32. The number of weights 18 may be 1 or 3 or more. The shape of the weight 18 is a sphere. The diameter of the weight 18 is slightly smaller than the height of the guide chamber 32. The weight 18 can move in the front-rear direction in the guide chamber 32. In FIG. 1, the state where the weight 18 is located on the most front side is indicated by a solid line, and the state where the weight 18 is located on the most rear side is indicated by a two-dot difference line. The weight 18 is made of a magnetically adherent material.

  The lip 20 has a plate shape and is made of a hard material. The lip 20 is attached to the bottom surface of the head of the body 14 and projects forward. As is apparent from FIG. 1, the lip 20 is inclined with respect to the front-rear direction. The lip 20 is inclined downward in the body height direction toward the front. When the lure 12 swims in the water, the upper surface of the lip 20 becomes a water receiving surface. When the lip 20 receives water, the lure 12 is submerged. The lip 20 may not be formed.

  The line eye 22, the first eye 24, and the second eye 26 are formed by bending a metal wire. The end of the metal wire is embedded in the body 14. By this embedding, the eyes 22, 24, and 26 are attached to the body 14. A line is connected to the line eye 22 directly or via a snap. A first hook 28 is attached to the body 14 via the first eye 24. A second hook 30 is attached to the body 14 via the second eye 26. The first hook 28 is made of a magnetically adherent material. A typical material of the first hook 28 is steel.

  2A is a front view showing the first hook 28, and FIG. 2B is a right side view thereof. The first hook 28 is a so-called treble hook. The first hook 28 includes a base 34, three shanks 36, three bends 38, and a joint 40. The bend 38 includes a barb 42. The barb 42 may not be formed. The joint portion 40 is formed by welding overlay. Three shanks 36 are joined by the joint 40. In FIG. 2, what is indicated by reference sign P1 is the lower end of the joint 40, and what is indicated by reference sign P2 is a point 2.0 mm below the lower end P1. In the present invention, the point P2 is defined as the boundary point between the shank 36 and the bend 38. Three shanks 36 may be joined by brazing. In this case, a point 2.0 mm below the lower end of the brazing is the boundary point P2. Three shanks 36 may be bound with a wire. In this case, a point 2.0 mm below the lower end of the wire is the boundary point P2. Although not shown, the shape of the second hook 30 is also the same as the shape of the first hook 28.

  When the lure 12 flies, the weight 18 exists at a position indicated by a two-dot chain line in FIG. 1 due to centrifugal force and inertia. At this time, the center of gravity of the lure 12 is rearward. The lure 12 flies in a posture with the rear side at the top. The air resistance at this time is small. With this lure 12, a large flight distance can be obtained. After landing, the weight 18 is attracted forward by a magnetic force and is magnetically attached to the magnet piece 16. The weight 18 exists at a position indicated by a solid line in FIG. In this state, the center of gravity of the lure 12 is closer to the front than during flight. The position of the center of gravity is an appropriate position for the lure 12 in water. The lure 12 having an appropriate center of gravity position maintains an appropriate posture in water. When the lure 12 having the proper center of gravity is drawn in a line, the lure 12 takes a good action. This lure 12 appeals to the fish eater.

  FIG. 3A is a front view showing the usage state of the lure 12 of FIG. 1, and FIG. 3B is an enlarged view showing a part thereof. FIG. 3 shows the lure 12 in water. In this state, the first hook 28 is fixed to the body 14. This fixing is achieved by the first hook 28 being attracted to the magnet piece 16 by a magnetic force. The first hook 28 is located behind the first eye 24. The shank 36 extends substantially in the front-rear direction. The first hook 28 fixed to the body 14 does not go around to the back. The lure 12 does not cause inappropriate action due to wrapping around the back. Further, the lure 12 does not cause a reduction in hooking rate due to wrapping around the back. The first hook 28 is separated from the body 14 at the time of hooking.

  In the lure 12, one magnet piece 16 performs a function of drawing the weight 18 and a function of drawing the first hook 28. Therefore, the structure of the lure 12 is simpler than when each function is achieved by a separate magnet. The lure 12 can be manufactured at a low cost.

  In FIG. 3B, the straight line indicated by the symbol L1 represents the front-rear direction position of the boundary point P2, the straight line indicated by the symbol L2 represents the front end position of the magnet piece 16, and the symbol L3 The straight line indicated by represents the rear end position of the magnet piece 16. As is apparent from FIG. 3B, the straight line L1 is located between the straight line L2 and the straight line L3. In other words, the magnet piece 16 is located immediately above the boundary point P2. The first hook 28 is reliably fixed to the body 14 by setting the positional relationship between the magnet piece 16 and the boundary point P2 as described above.

  The magnetic force of the magnet piece 16 needs to be strong enough to magnetically attach the first hook 28 via the body 14. The maximum magnetic energy product of the magnet piece 16 is preferably 8 MGOe or more, more preferably 12 MGOe or more, and particularly preferably 16 MGOe or more. A preferable material for the magnet piece 16 is a rare earth magnet. Specific examples of the rare earth magnet include a neodymium magnet having a maximum magnetic energy product of 30 to 50 MGOe, a samarium-cobalt magnet having a maximum magnetic energy product of 10 to 30 MGOe, and the like. The magnet piece 16 having a large maximum magnetic energy product strongly attracts the weight 18. If the maximum magnetic energy product is excessive, the weight 18 does not move backward during casting. From the viewpoint that the movement of the weight 18 is allowed, the maximum magnetic energy product is preferably 90 MGOe or less.

A conventional lure uses a weight whose material is carbon steel. This carbon steel is a ferromagnetic material. By using the weight 18 having weaker magnetic adhesion than the carbon steel, the weight 18 can move backward at the time of casting even when the maximum magnetic energy product of the magnet piece 16 is large. A preferable material of the weight 18 is an alloy formed by sintering powder containing the following components.
(1) Nickel (Ni) of 3 mass% or more and 15 mass% or less
(2) 4 mass% or more and 15 mass% or less of iron (Fe)
(3) Tungsten (W) of 50 mass% or more and 93 mass% or less
(4) Inevitable impurities The main component of this powder is W. Since the specific gravity of W is large, the weight 18 having a large specific gravity can be obtained by using W. The lure 12 provided with the weight 18 has a large gravity center moving effect. Since W does not have magnetism by itself, the magnetism of the weight 18 whose main component is W is weak. The ratio of W in this powder is preferably 70% by mass or more, more preferably 80% by mass or more, and particularly preferably 85% by mass or more. In this weight 18, magnetic adhesion is expressed by Fe and Ni.

A particularly preferable material for the weight 18 is an alloy obtained by sintering a powder containing the following components.
(1) Nickel (Ni) of 3 mass% or more and 15 mass% or less
(2) 4 mass% or more and 15 mass% or less of iron (Fe)
(3) Tungsten (W) of 50 mass% or more and 93 mass% or less
(4) 0.5% by mass or more and 10% by mass or less of cobalt (Co) or copper (Cu)
(5) Inevitable impurities The main component of this powder is W. Since the specific gravity of W is large, the weight 18 having a large specific gravity can be obtained by using W. The lure 12 provided with the weight 18 has a large gravity center moving effect. Since W does not have magnetism by itself, the magnetism of the weight 18 whose main component is W is weak. The ratio of W in this powder is preferably 70% by mass or more, more preferably 80% by mass or more, and particularly preferably 85% by mass or more. In this weight 18, magnetic adhesion is expressed by Fe and Ni.

  FIG. 4 is a partially cutaway cross-sectional view showing a lure 44 according to another embodiment of the present invention. In FIG. 4, the left-right direction is the front-rear direction of the luer 44, and the up-down direction is the body height direction of the lure 44. The lure 44 includes a body 14, a magnetized piece 46, a weight 48, a lip 20, a line eye 22, a first eye 24, a second eye 26, a first hook 28 and a second hook 30. The luer 44 is different from the lure 12 shown in FIG. 1 in that the position of the first eye 24, the magnet piece 16 is provided in place of the magnet piece 16, and the weight 48 is used.

  The magnetized piece 46 is fixed to the body 14. The magnetized piece 46 is located at the front end of the guide chamber 32 of the body 14. In this example, the magnetized piece 46 is cylindrical. The magnetized piece 46 is made of a magnetizable material.

  The weight 48 is built in the body 14. The weight 48 is accommodated in the guide chamber 32. In this example, two weights 48 are accommodated in the guide chamber 32. The number of weights 48 may be 1 or 3 or more. The shape of the weight 48 is a sphere. The diameter of the weight 48 is slightly smaller than the height of the guide chamber 32. The weight 48 is movable in the front-rear direction in the guide chamber 32. In FIG. 3, the state in which the weight 48 is located on the most front side is indicated by a solid line, and the state in which the weight 48 is located on the most rear side is indicated by a two-dot difference line. The weight 48 is made of a magnet. Specific examples of the magnet include a ferrite magnet and a rare earth magnet. From the viewpoint of obtaining a large magnetic force, a rare earth magnet is preferable.

  During the flight of the lure 44, the weight 48 exists at the position indicated by the two-dot chain line in FIG. 4 due to centrifugal force and inertia. At this time, the center of gravity of the lure 44 is rearward. The lure 44 flies in a posture with the rear side as the head. The air resistance at this time is small. With this lure 44, a large flight distance can be obtained. After landing, the weight 48 is attracted to the magnetized piece 46 by magnetic force. Since the magnetized piece 46 is fixed to the body 14, the weight 48 is drawn toward the magnetized piece 46 (ie, forward). The weight 48 exists at a position indicated by a solid line in FIG. In this state, the center of gravity of the lure 44 is closer to the front than during flight. The position of the center of gravity is an appropriate position for the lure 44 in water. The lure 44 having an appropriate center of gravity position maintains an appropriate posture in water. When the lure 44 having an appropriate center of gravity is drawn in a line, the lure 44 performs a good action. This lure 44 appeals to the fish eater.

  FIG. 5A is a front view showing the usage state of the lure 44 of FIG. 4, and FIG. 5B is an enlarged view showing a part thereof. FIG. 5 shows a lure 44 in the water. In this state, the first hook 28 is fixed to the body 14. This fixing is achieved by the first hook 28 being attracted to the weight 48 by a magnetic force. The first hook 28 is located behind the first eye 24. The shank 36 extends substantially in the front-rear direction. The first hook 28 fixed to the body 14 does not go around to the back. The lure 44 does not cause an inappropriate action due to wrapping around the back. Further, the lure 44 does not cause a decrease in the hooking rate due to wrapping around the back.

  In this lure 44, a weight 48 made of a magnet performs a function of moving itself forward and a function of attracting the first hook 28. Therefore, the structure of the lure 44 is simpler than when each function is achieved by a separate magnet. The lure 44 can be manufactured at a low cost.

  In FIG. 5B, a straight line indicated by reference sign L4 represents the front-rear direction position of the boundary point P2, and a straight line indicated by reference sign L5 represents the front end position of the weight 48, which is indicated by reference sign L6. The straight line indicated by represents the rear end position of the weight 48. As is apparent from FIG. 5B, the straight line L4 is located between the straight line L5 and the straight line L6. In other words, the weight 48 is located immediately above the boundary point P2. By setting the positional relationship between the weight 48 and the boundary point P2 as described above, the first hook 28 is reliably fixed to the body 14.

  The magnetic force of the weight 48 needs to be strong enough to magnetically attach the first hook 28 via the body 14. The maximum magnetic energy product of the weight 48 is preferably 8 MGOe or more, more preferably 12 MGOe or more, and particularly preferably 16 MGOe or more. A preferable material of the weight 48 is a rare earth magnet. Specific examples of the rare earth magnet include a neodymium magnet having a maximum magnetic energy product of 30 to 50 MGOe, a samarium-cobalt magnet having a maximum magnetic energy product of 10 to 30 MGOe, and the like. When the weight 48 having a large maximum magnetic energy product is used, the magnetized piece 46 and the weight 48 are magnetized with a large force. If the maximum magnetic energy product is excessive, the weight 48 does not move backward during casting. From the viewpoint of allowing movement of the weight 48, the maximum magnetic energy product is preferably 90 MGOe or less.

By using the magnetized piece 46 having weak magnetizability, the weight 48 can move backward at the time of casting even when the maximum magnetic energy product of the weight 48 is large. A preferred material for the magnetized piece 46 is an alloy formed by sintering powder containing the following components.
(1) Nickel (Ni) of 3 mass% or more and 15 mass% or less
(2) 4 mass% or more and 15 mass% or less of iron (Fe)
(3) Tungsten (W) of 50 mass% or more and 93 mass% or less
(4) Inevitable impurities The main component of this powder is W. Since W does not have magnetism by itself, the magnetizability of the magnetized piece 46 whose main component is W is weak. The ratio of W in this powder is preferably 70% by mass or more, more preferably 80% by mass or more, and particularly preferably 85% by mass or more. In this magnetized piece 46, magnetizability is expressed by Fe and Ni.

A particularly preferable material for the weight 48 is an alloy formed by sintering a powder containing the following components.
(1) Nickel (Ni) of 3 mass% or more and 15 mass% or less
(2) 4 mass% or more and 15 mass% or less of iron (Fe)
(3) Tungsten (W) of 50 mass% or more and 93 mass% or less
(4) 0.5% by mass or more and 10% by mass or less of cobalt (Co) or copper (Cu)
(5) Inevitable impurities The main component of this powder is W. Since W does not have magnetism by itself, the magnetizability of the magnetized piece 46 whose main component is W is weak. The ratio of W in this powder is preferably 70% by mass or more, more preferably 80% by mass or more, and particularly preferably 85% by mass or more. In this magnetized piece 46, magnetizability is expressed by Fe and Ni.

  The lure according to the present invention is suitable for fishing in various fields such as lakes, ponds, dams, rivers, and the sea.

FIG. 1 is a partially cutaway sectional view showing a lure according to an embodiment of the present invention. 2A is a front view showing the first hook of the lure of FIG. 1, and FIG. 2B is a right side view thereof. FIG. 3A is a front view showing the usage state of the lure of FIG. 1, and FIG. 3B is an enlarged view showing a part thereof. FIG. 4 is a partially cutaway sectional view showing a lure according to another embodiment of the present invention. FIG. 5A is a front view showing the usage state of the lure of FIG. 4, and FIG. 5B is an enlarged view showing a part thereof. FIG. 6 is a front view showing a conventional lure.

Explanation of symbols

12, 44 ... Luer 14 ... Body 16 ... Magnet piece 18, 48 ... Weight 28 ... First hook 30 ... Second hook 32 ... Guide chamber 34 ... Chimoto 36 ... Shank 38 ... Bend 40 ... Joint 46 ... Magnetized piece P2 ... Boundary point

Claims (12)

Body,
A magnet piece fixed to the body,
A hook made of a magnetic material, attached to this body,
It is built in this body so that it can move in the front-rear direction, and it has a weight made of a magnetic material.
This magnet piece can fix the hook to the body by magnetic force and can pull the weight forward by magnetic force. The hook includes a shank and a bend continuous with the shank.
The lure according to claim 1, wherein the magnet piece is positioned directly above the boundary point P2 between the shank and the bend in a state where the hook is fixed to the body.   The lure according to claim 1 or 2, wherein the magnet piece is made of a rare earth magnet.   The lure according to any one of claims 1 to 3, wherein a maximum magnetic energy product of the magnet pieces is 8 MGOe or more.   The lure according to any one of claims 1 to 4, wherein the weight includes W as a main component and contains Fe or Ni.   The weight is made of an alloy obtained by sintering a powder containing Ni of 3 to 15% by mass, Fe of 4 to 15% by mass of Fe, and W of 50 to 93% by mass of W. Item 6. The lure according to item 5. Body,
Built in this body so that it can move in the front-rear direction, a weight consisting of magnets,
A magnetized piece made of a magnetizable material, fixed to the body,
It is attached to this body and is equipped with a hook made of a magnetic material.
A lure in which the weight can be attracted to the magnetized piece by a magnetic force and the weight can fix the hook to the body by the magnetic force in a state where the weight and the magnetized piece are magnetized. The hook includes a shank and a bend continuous with the shank.
The lure according to claim 5, wherein the weight is positioned immediately above the boundary point P <b> 2 between the shank and the bend in a state where the hook is fixed to the body.   The lure according to claim 7 or 8, wherein the weight is made of a rare earth magnet.   The lure according to any one of claims 7 to 9, wherein a maximum magnetic energy product of the weight is 8 MGOe or more.   The lure according to any one of claims 7 to 10, wherein the magnetized piece contains W as a main component and contains Fe or Ni.   The magnetized piece is made of an alloy obtained by sintering a powder containing Ni of 3 to 15% by mass, Fe of 4 to 15% by mass of Fe, and W of 50 to 93% by mass of W. The lure according to claim 11.

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