JP7429434B2 - lure - Google Patents

Description

The present invention relates to a lure, and more particularly, to a lure including a weight movable along a shaft provided in a space of a lure body.

Previously, the applicant of the present application has developed a mechanism in which a shaft is disposed within the space of the lure body and a weight is moved along the shaft. This mechanism uses a magnet piece at the tip of the shaft to hold the weight near the center of the lure, and uses a weight made of a material with high specific gravity mixed with a material that can be magnetized by a magnet (Patent Document (see 1).

Japanese Patent Application Publication No. 2001-299150

In the invention disclosed in the above-mentioned Patent Document 1, the shaft is disposed in a range from near the tail to near the center of the lure body, and the weight can be moved between the shafts, so when casting, the weight is moved toward the tail. By moving to the center of gravity, the center of gravity can be biased, and the attitude during flight can be stabilized. After landing on the water, the weight moves depending on the attitude of the lure body, and by moving to the magnet piece, it becomes magnetized. , it was possible to move the center of gravity closer to the center. By moving the center of gravity closer to the center, the lure's posture in the water was stabilized during retrieval (reeling), and it was said to be able to achieve brisk movement.

However, in the above invention, a magnet piece for holding the weight is provided at the front end of the shaft, and the weight is magnetically attracted by this magnet piece, so that the front surface of the weight is in surface contact with the magnet piece. It was designed to be magnetically attached. This is to ensure that the weight is held by magnetic adhesion, but if the magnetic adhesion is strong, it may not be easy to release the weight from the magnetically attached state. In order to solve this problem, it may be possible to increase the mixing ratio of high specific gravity materials that do not attract magnetism, but it has not been easy to adjust this in order to exert an appropriate magnetic attraction force.

In addition, the conventional method of fixing weights was by magnetic attachment using magnets, but the weight of the magnet itself acts as a kind of weight, which improves the weight balance during casting and the weight balance in the water. The position and size (weight) of the magnet had to be determined while taking both of these into consideration, and the design for this was not easy.

The present invention has been made in view of the above points, and its object is to provide a lure having a structure in which a weight can be held at a desired position without using a magnet.

Therefore, the present invention provides a lure that is provided with a weight that moves forward and backward from the vicinity of the tail of the lure body in a direction toward the head in a space provided inside the lure body, a weight movement area formed in an appropriate range from , a weight arranged to be movable back and forth within this movement area, and the weight moving forward from near the tail of the lure body toward the head until it reaches a desired stopping position. a stopper that can temporarily suppress the weight from retreating toward the tail when moving; the stopper is provided so as to be able to appear and retract within a spatial region through which the weight passes during movement; It is characterized by comprising an abutting part that can come into contact with a part of the side surface, and a biasing means that can bias the abutting part in a direction that resists the receding of the weight.

According to the above configuration, since the abutting part of the stopper is provided so as to be able to appear and retract within the spatial region through which the weight passes during movement, it suppresses the movement of the weight in the state of protruding into the spatial region and prevents the weight from disappearing. It becomes possible to move in the state of In addition, since the biasing means biases the contact portion in a direction that resists the receding of the weight, the weight advances toward the head of the lure body and reaches the desired stopping position (the lure body When the weight reaches the center (near the center of the weight), the abutting portion comes into contact with the tail side surface of the weight, thereby suppressing the backward movement. Note that the spatial area that the weight passes through when moving is a space that is different from the moving area of the weight, and is a space formed by the trajectory of the weight when it actually moves. It means the area that the moving weight passes completely. In other words, it means the area formed in the movement area of the weight from the head side surface when the weight is stopped near the tail to the tail side surface when the weight is stopped at the stop position. Furthermore, the phrase "able to appear and appear in this spatial area" includes not only the case where the object can be actively operated to appear and disappear, but also the case where the object can appear and appear as a result of being passively operated by a weight.

In the case of the above configuration, in order to enable the abutting part to move in and out of the spatial region, the abutting part may be configured to rotate around a specific rotation axis. In this case. The bias in the direction of resisting the receding of the weight by the biasing means may be applied by applying a biasing force in the rotational direction. Other configurations that can be retracted include a configuration that utilizes the elastic force of a spring or the like, and a configuration that uses the elastic force of a spring or the like to apply the biasing force at the same time may be used. Furthermore, there may also be a configuration that allows for retraction and urging by both rotation and springs.

In the invention with the above configuration, the stopper is configured with a torsion spring provided in the space of the lure body, and the contact portion is formed by the tip of the arm on the load point side of the torsion spring. be able to. According to such a configuration, the load point side arm of the torsion spring can be placed in a state in which it can move into and out of the spatial region through which the weight passes, and can be biased against the retreat of the weight, due to the elastic force of the torsion spring. can.

Specifically, the torsion spring is arranged such that the coil part is supported by a support part whose axis is perpendicular to the advancing and retreating direction of the weight, and the abutment part is arranged parallel to the axis of the support part. It can be provided in a linear shape.

According to the above configuration, by supporting the coil portion of the torsion spring by the support portion, it is possible to generate bias in the rotational direction about the support portion as an axis. Furthermore, since the axis of the support portion is perpendicular to the direction of movement of the weight, the biasing force due to the rotation of the torsion spring is along the direction of movement of the weight. Therefore, the torsion spring can cause the weight to move into and out of the spatial region through which the weight passes, and the abutting portion to apply a biasing force to suppress the weight from retreating.

In the case of the above configuration, the torsion spring has a free angle as an inferior angle, and when the contact portion contacts the tail side surface of the weight as the weight moves in the backward direction from the stop position, the load point The side arm may be arranged so as to apply a load in a torsional direction.

According to the above configuration, the free angle of the torsion spring (the angle formed by the arm on the fixed point side and the arm on the load point side) is an inferior angle, and the abutting part receives a load in the torsional direction by being in contact with the tail side surface of the weight. Therefore, the spring pressure of the torsion spring can be applied when suppressing the weight from retreating. In addition, since the abutting part is provided at the tip of the arm on the load point side, displacement due to the load on the arm causes the abutting part to separate from the weight, causing it to come into contact with the surface of the tail side of the weight. When the condition is released, the weight becomes capable of retracting. Note that the load point side arm means the arm on the side that becomes the load point when a load is applied to the torsion spring, and the other arm is fixed in order to generate a torsion moment. The arm on the fixed side is called the fixed point side arm.

In the invention having the above configuration, the fixed point side arm is supported with play such that the coil part is rotatable within a predetermined range about the axis of the support part, and the abutting part is connected to the weight. The contact portion may be able to rotate toward the head side of the lure main body based on the state in which it is in contact with the tail side surface of the lure body.

According to such a configuration, the arm on the fixed point side should originally be fixed in order to generate a torsion moment in the torsion spring, but the fixed state is changed due to moderate play around the axis of the support shaft. Since the weight is freely rotatable in the circumferential direction, the contact state of the contact part when the weight advances toward the head side, and the state of contact when the weight retreats toward the tail side. A difference can be made between. In other words, since the contact part can be rotated toward the head side based on the state in which the contact part is in contact with the tail side surface of the weight, when the weight advances toward the head side, the contact part is rotated toward the head side. Even if the weight comes into contact with a part (head side surface), the entire torsion spring rotates and the weight can be moved smoothly.On the other hand, when the weight moves backward, it comes into contact with the tail side surface. Since the rotation is stopped in this state, the biasing force from the torsion spring acts directly.

Note that among the above configurations, in the configuration using a torsion spring, the torsion spring is a double torsion spring, and the contact portion is the tip of the two load point side arms provided on the two coil portions. It can be configured by a continuous part made up of continuous parts.

In the case of the above configuration, when moving the weight at the center of the lure main body in plan view, the coil parts can be placed on both sides, and it is possible to stabilize the biasing state when suppressing the weight from retreating. can. In particular, when the fixed state of the arm on the fixed point side has some play, both the rotation of the coil part (substantially the support shaft) around the axis and the torsion caused by the load on the arm on the load point side. Even when the torsion spring is supported, the fixed point side arm is also supported at two locations, so the posture of the torsion spring can be stabilized.

In each of the inventions of the above configurations, the movement region of the weight is provided with a shaft having an axis in the direction of advance and retreat of the weight, the weight is formed in a columnar shape and is provided with a through hole parallel to the generatrix direction, The shaft may be inserted into the through hole so that the weight can move forward and backward along the shaft.

According to the above configuration, the shaft provided in the movement area has an axis in the direction of advance and retreat of the weight, and the weight is shaped like a column and is moved by inserting the shaft into the through hole parallel to the generatrix direction. Since the weight is movable, the weight can be moved while maintaining a stable posture while being inserted into the shaft. In particular, even when a biasing force is applied by the stopper (contact part), since the shaft is inserted through the weight, it cannot move in any direction other than the direction in which it can advance or retreat. It can be made to work.

Further, in the case where the shaft is not used, the moving area of the weight is formed by dividing a space inside the lure body by a rail member that allows the weight to roll or slide, and the weight is , it may be formed by a rolling member or a sliding member that can roll or slide within the movement area.

In the case of the above configuration, since the movement area of the weight is separated from other spaces of the lure body by the rail member, the weight can freely roll or slide only in the movement area. The rail member may be in the shape of a gutter or a flat plate, and in the case of a flat rail member, by disposing a plurality of members, the movement area can be divided as a whole. This rail member prevents the weight from escaping the divided movement area, so even when it is biased by the stopper (contact part), it remains inside the movement area, and the weight is You will receive the following. The rolling member may be a cylindrical member whose surface is movable in the advancing and retracting directions, or it may be a spherical body whose rolling direction is freely adjustable. In addition, a sliding member is a member that can be provided with a block-like weight that cannot roll and is partially in sliding contact with a rail member. For example, in the case of a columnar member, it can be moved in the axial direction. The rail member can be made into a sliding member by partially sliding the generatrix portion of the side surface of the rail member into sliding contact with the rail member.

According to the present invention, the receding of the weight can be temporarily suppressed by the stopper having the contact portion that appears and retracts in the spatial region through which the moving weight passes, and therefore the weight can be held at the desired position without using a magnet. become something that can be done.

In addition, when the stopper is formed by a torsion spring, it is possible to apply a biasing force around the axis of the support part that supports the coil part, and the direction of the biasing force by the contact part is set in the direction around the axis. Therefore, depending on the degree of rotation in the direction around the axis, it can be easily brought into and out.

FIG. 1 is a sectional view showing an embodiment of the present invention. It is an explanatory view showing the relationship between a weight and a stopper. It is an explanatory view showing the state of the contact part which appears and disappears in the space area through which the weight passes. FIG. 2 is an explanatory diagram showing the operating mode of the embodiment. FIG. 2 is an explanatory diagram showing the operating mode of the embodiment. FIG. 2 is an explanatory diagram showing the operating mode of the embodiment. FIG. 2 is an explanatory diagram showing the operating mode of the embodiment. It is an explanatory view showing a modification of the embodiment. It is an explanatory view showing a modification of the embodiment. It is an explanatory view showing a modification of the weight of the embodiment. It is an explanatory view showing a modification of the embodiment.

<Embodiment>
Embodiments of the present invention will be described below based on the drawings. FIG. 1 is a sectional view showing the internal state of a lure 1 according to an embodiment of the present invention. As shown in this figure, the lure 1 includes a lure body 2 and a plurality of eyelets 11, 12, 13 attached to the lure body 2, and the eyelet 11 provided on the head 21 of the lure body 1 serves as a line eye. The eyelets 12, 13 near the tail 22 and center 23 are provided with hooks 14, 15, respectively, as hook eyes. Furthermore, a space 20 is formed inside the lure body 2.

The lure 1 of this embodiment utilizes the space 20 of the lure main body 2 configured as described above, and this space 20 is formed inside by the outer shape of the lure main body 2. Using this space 20, a linear shaft 3 is arranged in the front-rear direction of the lure body 2 (direction from near the head 21 to near the tail 22), and the shaft 3 is inserted through the weight 4. This forms a movement area for the weight 4. That is, the weight 4 is movable along the shaft 3, and the range where the shaft 3 is provided becomes the movement area. The shaft 3 is made of metal such as stainless steel in order to have enough strength to support the weight 4, and both ends of the shaft 3 are connected to the lure body 2 in the vicinity of the center 23 and the tail portion 22 of the lure body 2. It is supported by a front end support part 24 and a rear end support part 25 formed in the space part 20.

Further, in this embodiment, the shaft 3 is provided in a predetermined range from the vicinity of the tail part 22 of the lure body 2 to the vicinity of the center 23, and therefore, the weight 4 is provided in the front end support part 24 and the rear end within this range. It is movable until it comes into contact with the support part 25. The weight 4 has a through hole as described below, and by loosely fitting the shaft 3 therein, the weight 4 can move forward and backward. Note that, as a method for arranging the weight 4 so as to be freely advanced and retracted, there may be a structure in which the weight 4 is rolled, in addition to a structure in which the shaft 3 is inserted through the weight 4. Although other configurations in which the weight 4 is provided so as to be freely advanced and retracted will be described later as modified examples, in this embodiment, a configuration in which the weight 4 inserted through the shaft 3 is advanced and retracted will be described as a representative example.

In the above configuration, when the weight 4 has moved to the vicinity of the center 23 of the lure body 2, the retreat of the weight 4 (movement toward the tail portion 22) is temporarily suppressed. Temporarily restraining means that when an external force is applied that forces the weight 4 to retreat, it is possible to retreat due to that action, but such an external force (intentional or force majeure external force) acts. This means a state in which the weight 4 can be held without moving back up to the point.

For this reason, this embodiment is provided with the stopper 5. This stopper 5 is constituted by a torsion spring 50, and a coil portion 51 of the torsion spring 50 is supported by a support portion 6, and a fixed point side arm 52 is fixed by a fixing member 7 (7a, 7b). This applies a predetermined biasing force to the load point side arm 53. The support part 6 is a rod-shaped member with a part of the lure main body 2 protruding inside the space part 20, and by loosely fitting the coil part 51 into the support part 6, twisting of the coil part 51 is prevented. It makes it possible. Note that since the support portion 6 is loosely fitted, the support portion 6 can freely rotate around the axis (circumferential direction).

A contact portion 8 is formed at the tip 54 of the load point side arm 53 of the torsion spring 50 described above. The contact portion 8 is a portion that comes into contact with the weight 4, and can come into contact with the tail side surface of the weight 4 when temporarily suppressing the retreat of the weight 4.

Here, the relationship between the weight 4 and the torsion spring 50 (particularly the contact portion 8) will be described in detail. The relationship between the two is shown in FIG. Note that FIG. 2(a) is a perspective view of the weight 4 with the shaft 3 inserted therethrough and the torsion spring 50, and FIG. 2(b) is a sectional view taken along the line IIB-IIB, and FIG. c) is a sectional view taken along the line IIC-IIC.

As shown in FIG. 2(a), the torsion spring 50 used in this embodiment is a double torsion spring. The double torsion spring 50 has two similar coil parts 51a, 51b, each of which is provided with a load point side arm 53a, 53b, whose tip 54 is continuous by a continuous part, and this continuous part The portion (tip) 54 is used as the contact portion 8. In order to install the double torsion spring 50 in a predetermined position, the coil parts 51a and 51b can be loosely inserted by the single support part 6. Furthermore, the fixed point side arms 52a, 52b are in a state of individually protruding from the two coil parts 51a, 51b, and these two fixed point side arms 52a, 52b can also be fixed by the same fixing member 7. can. Note that the support portion 6 and the fixing member 7 may be provided separately, but in that case, they are configured to protrude from both left and right sides of the lure body 2.

By the way, as shown in FIGS. 2(b) and 2(c), the weight 4 has a columnar shape (the figure shows a cylindrical shape), and a linear through hole 40 is formed along the central axis (parallel to the generatrix direction). It is perforated. Furthermore, since the shaft 3 is provided in a straight line, the relative relationship between the weight 4 and the shaft 3 remains the same at all times, except for changes in position in the longitudinal direction due to movement. The Rukoto. In other words, as long as the weight 4 moves along the shaft 3, the outline of the weight 4 relative to the center of the shaft 3 remains the same (if it is cylindrical, it becomes concentric circles). However, since the shaft 3 is loosely inserted into the through hole 40, the circles are not completely identical (concentric circles), although slightly (see FIG. 2(c)), but this is within the range of error.

Further, the tip 54 (contact portion 8) of the load point side arm 53 is arranged in a straight line toward the direction Y that is perpendicular to the axial direction of the shaft 3 (same as the advancing and retreating direction of the weight 4) X. . The axial direction Y of this tip 54 (abutting portion 8) is the same (parallel) as the axial direction Y of the support portion 6 that supports the coil portions 51a and 51b. In this way, by making the direction Y of the tip 54 (contact portion 8) orthogonal to the axial direction This means that they can be brought into contact with each other along their length.

Note that the tip 54 (contact part 8) is displaced in the circumferential direction of the coil parts 51a, 51b due to the torsion action of the torsion spring 50 (the torsion action of the coil parts 51a, 51b), and the surface 41 of the weight 4, In addition to 42, the torsion spring can also come into contact with the side surface 43 due to the biasing force generated by receiving a torsional moment.

As described above, in order to suppress the movement of the weight 4 by the abutment part 8 constituted by the tip 54 of the torsion spring 50, the abutment part 8 can appear and retract into the spatial region through which the weight 4 passes during movement. It is provided. FIG. 3 shows the state of appearance and reappearance within this spatial region.

In FIG. 3, the area displayed with hatching is the above-mentioned spatial area A. It means an area that the weight 4 can completely pass through out of the entire trajectory when moving within a predetermined range (range from the base end to the end end). The meaning that the abutting part 8 is disposed so that it can appear and retract in the space area A through which it passes (hereinafter also referred to as the passing space area) does not mean that the abutting part 8 actively operates to appear and disappear; It shows what is passively submerged by the external force received by the movement of the weight 4 from the state arranged in the spatial area A. That is, for the abutment part 8, the position located inside the passage space area A is used as a reference, and that position can be displaced by an external force, and when the position is displaced, the position is resisted. By applying a biasing force, it is possible to move in and out of the passage space area A.

For example, as shown in FIG. 3(a), the load point side arm 53 of the torsion spring 50 extends moderately from the coil part 51, and its tip 54 (abutting part 8) reaches the inside of the passage space area A. The structure is designed to allow If the fixed point side arm 52 is not completely fixed, but is fixed with some play, it will be able to rotate in the circumferential direction of the coil part 51 within the range of that play. Even in such a case, the tip 54 of the load point side arm 53 is provided so as to be located inside the passage space area A. This is because when the weight 4 passes, it contacts some part of the weight 4 and receives external force.

As shown in FIGS. 3(b) and 3(c), the tip 54 of the load point side arm 53 is moved outside the passage space area A by being twisted within an allowable range due to the twisting action of the coil portion 51. It will be displaced in the direction. In such a state of displacement, the weight 4 is in a state where it can move (pass). However, in this state of displacement, a bias is generated in a direction that resists the displacement.

On the other hand, as shown in FIG. 3(a), in a state where the tip 54 of the load point side arm 53 is located inside the passage space area A, if an attempt is made to displace it as described above, it will be biased. Therefore, if an external force that exceeds the urging force cannot be applied, the weight 4 cannot pass, and by applying an external force greater than the urging force, the weight 4 can pass. Such an external force is exerted by the weight 4 coming into contact with the tip 54 (contact portion 8) during movement.

Here, the torsion spring 50 used in this embodiment has a recessed free angle and is arranged with the free angle facing toward the tail side. With this arrangement, the contact of the contact portion 8 when the weight 4 retreats from the vicinity of the center 23 causes a load to be applied to the load point side arm 53 in the torsional direction. Therefore, when the weight 4 moves forward from the vicinity of the tail portion 22 toward the vicinity of the center 23 (see FIG. 3(b)), it applies a twisting action in the opposite direction (unwinding direction) to the coil portion 51. Therefore, the biasing force is small, and when retreating from the vicinity of the center 23 to the vicinity of the tail portion 22, the biasing force increases because a twisting action is applied in the original direction (winding direction). This difference in urging force allows the weight 4 to move forward easily while making it difficult to move backward. Note that the movement of the weight 4 is further facilitated by rotation due to the play of the fixed point side arm 52.

<Operation mode>
Next, the operating mode of this embodiment will be explained. Since the present embodiment has the above-described configuration, in use, first, before casting, as shown in FIG. , the shaft 3 is arranged approximately vertically, and the weight of the weight 4 can be applied in the direction of the tail portion (rear end portion) 22. In this state, the weight 4 can be moved to the vicinity of the tail portion (rear end) 22 by swinging the lure 1 to apply a centrifugal force to the weight 4 or applying an impact to accelerate it downward. Note that the details of the moving method at this time will be described later.

In this state (the state in which the weight 4 is located near the tail part 22), the center of gravity of the entire lure 1 has moved toward the tail part 22, and by casting while maintaining this, the heavy tail part 22 is placed at the beginning. Can fly in the air. The flight attitude at this time is stable because the other parts follow the direction of movement of the weight 4, which can help extend the casting distance.

Furthermore, the posture of the lure 1 that has landed on the water after casting is adjusted by retrieving (reeling), as shown in FIG. 4(b). At this time, the head 21 (eyelet 11) is pulled by the fishing line 9, so that only the head 21 is adjusted to sink. For example, by subjecting the lip 26 to water flow resistance, only the head 21 can be easily made to sink. When the head 21 is directed diagonally downward, the weight 4 starts to move due to its own weight, and eventually moves to the front end support portion 24 of the shaft 3. Due to this movement, the retreat of the weight 4 is suppressed by the stopper 5.

Note that when the lure 1 is moved (retrieved) underwater in a state in which the weight 4 is suppressed from retreating, the lip 26 and the side surface of the lure body 2 are subjected to water resistance, so that the entire body vibrates. Even if there is such a thing, the vibration is a movement of rocking around the center of gravity position (near the weight 4 = vicinity of the center 23), and the vibration with respect to the weight 4 is small. Therefore, no large external force acts on the weight 4 in the direction of retreating. Even if an external force in the backward direction is generated, the presence of the stopper 5 (abutting portion 8) in the above-described state makes it possible to suppress the weight 4 from retreating.

The state of these weights 4 will be explained in detail. First, during casting and immediately after landing on water, the weight 4 is located near the tail portion 22, as shown in FIG. 5(a). Then, by retrieving (reeling), the side of the head 21 faces downward, so that the weight 4 moves forward in the direction of the head 21 due to its own weight. At this time, the torsion spring 50 naturally comes into contact with the tip 54 (contact portion 8) of the load point side arm 53 during the movement, but as shown in FIG. 5(b), the rotation of the torsion spring 50 By the movement and the twisting action in the opposite direction (unwinding direction) on the coil portion 51, the tip 54 (abutting portion 8) can be lifted against the relatively small bias of the spring. Even if the tip 54 (contact portion 8) is lifted, the biasing force of the coil portion 51 acts on the tip 54 (contact portion 8), so the tip 54 (contact portion 8) It comes into sliding contact with the side surface 43 of the weight 4.

In this state, when the weight 4 completely passes through (moves to the front end support part 24), the tip 54 (abutting part 8) slides against the side surface 43 of the weight 4, as shown in FIG. 5(c). The torsion spring 50 is released from contact and restored to its original state. As a result, the weight 4 is restrained from retreating.

That is, as shown in FIG. 6(a), when the weight 4 retreats, the tail side end surface 42 of the weight 4 contacts the tip 54 (contact portion 8) of the load point side arm 53, and the torsion spring 50 This will result in a biasing force. At this time, in order to rotate the load point side arm 53, it is necessary to twist the coil portion 51 in the original direction (winding direction), so the weight 4 cannot retreat unless a sufficient external force is generated for this purpose. Become something. For example, when the weight 4 moves backward, as shown in FIG. 6(b), if the load point side arm 53 is slightly rotated by the weight 4, the weight 4 will move beyond the tip 54 (abutting part 8). Therefore, it cannot move to the tail section 22.

In this state, the weight 4 is movable within a small range formed between the front end support part 24 and the tip 54 (abutting part 8) of the load point side arm 53, but the weight 4 does not move backward due to this movement. , is only a small distance, and even if it retreats, the abutting portion 8 exists, so that further retreat can be suppressed.

When casting again after retrieving (reeling), the weight 4 is forcibly moved to the tail portion 22. At this time, the weight 4 is moved to the tip 54 (of the load point side arm 53). must pass through the abutment part 8). In this case, as shown in FIG. 6(c), it is necessary to apply a sufficient external force to the load point side arm 53 of the torsion spring 50. The play of the arm 52 on the fixed point side of the torsion spring 50 is such that the torsion spring 50 cannot be rotated toward the tail portion 22, so a load (twisting moment) larger than the bias by the torsion spring 50 is applied to the arm 52 on the load point side. 53 must be loaded.

Therefore, such a load can be applied by, for example, a method of vibrating the lure 1 in the vertical direction with the head 21 of the lure 1 facing upward, as shown in FIGS. 7(a) and 7(b). As mentioned above, since it is movable within a small range formed between the front end support part 24 and the tip 54 (abutting part 8) of the load point side arm 53, the vibration in the vertical direction causes the The weight will move within the range, and at that time, by accelerating the weight 4 (increasing the speed), the load moving in the direction of the tail portion 22 can be increased. Note that centrifugal force may be applied to the weight 4 toward the tail portion 22 by rotating the lure 1 largely around the head 21 side as a fulcrum.

<Summary of this embodiment>
As described above, according to the present embodiment, the weight 4 is provided with the shaft 3 loosely fitted thereto, so that the weight 4 is movable along the shaft 3. The forward movement of the weight 4 is stopped by the front end support part 24 near the center 23, and the tip 54 (contact part 8) of the load point side arm 53 of the torsion spring 50 is on the tail side of the weight 4 in the backward direction. It becomes possible to come into contact with the end face 42, and movement in the backward direction is temporarily suppressed. On the other hand, the weight 4 can be moved back toward the tail section 22 by moving beyond the biasing force applied by the torsion spring 50, so that it can be positioned near the tail section 22 again.
<Modified example>

Although the embodiments of the present invention are as described above, the above embodiments are merely examples of the present invention, and the present invention is not limited to the above embodiments. Therefore, some elements of the above embodiment may be changed and other elements may be added.

For example, the movement area of the weight 4 may be configured without using the shaft 3. FIG. 8 shows a first modification. In this modification, the moving area of the weight 4 is divided into a space 20 of the lure body 2 by a bottom sliding base 31 and two side regulating parts 32 and 33. be. The weight 4 used here is typically columnar (cylindrical in the figure), and is disposed with its axial direction facing the advancing and retracting direction. In the case of such a configuration, a part of the side surface (generating line) of the weight 4 comes into linear sliding contact with the surface of the bottom sliding contact base 31, and the weight 4 maintains the sliding contact state. , it can move forward and backward by sliding. Note that the side regulating portions 32 and 33 are arranged to suppress floating of the weight 4, and by providing them at a position away from the bottom sliding contact base 31, the bottom sliding contact base 31 and the side regulating portion are arranged. The weight 4 is held from three directions 32 and 33. Therefore, when the lure main body 2 is inverted (upside down), the side regulating parts 32 and 33 can come into sliding contact with a part of the side surface (generating bar) of the weight 4. .

Also in the modification of the above configuration, the tip 54 (contact portion 8) of the load point side arm 53 of the torsion spring 50 can abut on the surface (tail side end surface) 42 of the weight 4, and this abutment portion 8 Due to this contact, movement in the backward direction is temporarily suppressed, similar to the above-described embodiment. Further, when the weight 4 moves (retreats) beyond the biasing force applied by the torsion spring 50, it can be moved to the vicinity of the tail portion 22.

Further, FIG. 9 shows a second modification example. In this modification, three spheres 4a, 4b, and 4c are used as the weight 4. Here, three spheres 4a to 4c are shown as an example, but the number is arbitrary, and may be one or two, or four or more. Regardless of the number of spheres, when using the spheres 4a to 4c, in order to restrict these spheres 4a to 4c from the bottom and sides, the bottom rolling base 31 and the side restriction parts 32, 33 are used. The moving area is formed by Basically, like the first modification described above, the weight 4 is held from three directions by providing two side regulating parts 32 and 33 at positions apart from the bottom rolling base 31. be.

By using the spheres 4a to 4c in this manner, these spheres 4a to 4c are basically movable by rolling on the surface of the bottom rolling base 31. Furthermore, when the lure main body 2 is inverted (upside down), the spheres 4a to 4c can roll on the surfaces of the side regulating portions 32, 33. Note that the movement (advancement and retreat) of the spheres 4a to 4c does not necessarily require rolling, and may be moved by sliding without rotation. This is because, in the case of sudden movement, it is assumed that the rolling speed cannot catch up with the moving speed, but by being able to roll, the movement can be made smooth. Note that, as long as it has a rollable shape, it is not limited to the spheres 4a to 4c, and a cylindrical axis may be provided horizontally.

In the first and second modifications described above, the bottom sliding base (bottom rolling base) 31 and the side regulating parts 32, 33 are configured as separate members, but they are integrated into a gutter-like structure. It may also be configured as a regulating section. In the case of a trough-like configuration, if an opening is formed through which the tip 54 (contact portion 8) of the load point side arm 53 of the torsion spring 50 can abut against the weight 4, the weight 4 as described above can be formed. Temporary movement control becomes possible.

Further, modified examples of the weight will be explained. In the above embodiment, the shape of the weight 4 into which the shaft 3 is inserted is cylindrical, but the weight 4 does not need to be cylindrical as long as it is columnar. For example, it may have an elliptical column shape as shown in FIG. 10(a), or it may have a prismatic shape as shown in FIG. 10(b). In the case of these configurations, the posture of the weight 4 can be stabilized by locating the through hole 40 at a position offset from the center line. In addition, as shown in FIG. 10(b), in the case where the corners of the square columnar shape are arranged facing up and down, when the weight 4 rotates around the axis of the shaft 3, the distance between the side surface of the weight 4 and the torsion spring 50 increases. Although it may change, even in this case, it is installed with a relative positional relationship that allows the contact portion 8 to make contact.

Moreover, although a double torsion spring is illustrated as the torsion spring 50, the torsion spring 50 may be configured with one coil portion 51 as shown in FIG. 10(c). In this case, the contact portion 8 to be provided at the tip 54 of the load point side arm 53 can achieve the same effect by providing it in a straight line in a direction perpendicular to the axis of the shaft 3 by bending the tip 54 or the like. be able to.

In the above configuration, including the state shown in FIG. 10(c), the position of the through hole 40 drilled in the weight 4 is eccentric, and the lure is in the normal posture (dorsal side is upper, ventral side is the lower order), the attitude of the weight 4 is also in the assumed state as shown in the figure. Using the same principle, the play of the fixed point side arm 52 of the torsion spring 50 is increased to ensure a sufficient rotation range for the coil part, while the load point side arm 53 (or the contact part 8 ) may be suspended so that the abutting portion 8 can reach into the passage space region. However, considering that the posture of the lure may not be stable when using it, it is preferable that the contact portion 8 is disposed inside the passage space region as in the embodiment. The embodiment is advantageous in that the torsion spring 50 does not necessarily have to be provided above (on the back side of) the shaft 3 (weight 4).

Furthermore, as shown in FIG. 10(d), a stopper 105 biased in an angular direction with respect to the axis of the shaft 3 by a compression spring 150 may be used. This stopper 105 has a shaft portion 151 that can be inserted into the compression spring 150 , and the rear end side of this shaft portion 151 is inserted into the support portion 107 . Further, the shaft portion 151 is provided with two brim-like plate members 152 and 153, and a compression spring 150 is arranged between one of the plate members 152 (on the tip side) and the support portion 107. It is something. When the shaft portion 151 retreats (raises), a repulsive force (biasing force) against compression is generated between one plate member 152 and the support portion 107. In this case, the angle between the shaft 3 and the shaft portion 151 is inclined toward the tail portion 22, and is intended to exclusively bias the weight 4 in the forward direction. The other plate member 153 (on the rear end side) of the shaft functions as a positioning member at the rear of the support portion 107, and keeps the position of the contact portion 108 constant when it does not contact the weight 4. It is to be maintained. By configuring the stopper 105 to bias in the angular direction in this manner, it is possible to easily move the weight 4 in the forward direction while suppressing movement in the backward direction. Further, it is preferable that the contact portion 108 is provided in a horizontally cylindrical shape so that it can linearly abut (line contact) on the tail end surface 42 of the weight 4 .

As other modified examples, as shown in FIG. 11(a), a structure in which a buffer member B is provided between the weight 4 and the rear end support part 25, and as shown in FIG. 11(b), Some devices have a structure in which a buffer member C is also provided between the weight 4 and the front end support portion 24. These buffer members B and C are disc-shaped and have a through hole through which the shaft 3 can be inserted.

1 Lure 2 Lure body 3 Shaft 4 Weights 4a, 4b, 4c Sphere (weight)
5 Stopper 6 Support parts 7, 7a, 7b Fixing member 8 Contact part 9 Fishing lines 11, 12, 13 Eyelets 14, 15 Hook 20 Space part 21 Head of the lure body 22 Tail part of the lure body 23 Center of the lure body 24 Front end support Part 25 Rear end support part 26 Lip 31 Bottom sliding base (bottom rolling base)
32, 33 Side regulating portion 40 Weight through hole 41 Weight surface (head side end surface)
42 Surface of weight (tail side end surface)
43 Surface of weight (side)
50 Torsion spring (double torsion spring)
51, 51a, 51b Coil parts 52, 52a, 52b Fixed point side arm 53, 53a, 53b Load point side arm 54 Tip A of load point side arm Space area (passage space area)
B, C buffer member

Claims (4)

A lure that is provided with a weight that moves forward and backward in a space provided inside the lure body in a direction from near the tail of the lure body toward the head,
A weight movement area formed in an appropriate range from the vicinity of the tail of the lure body, a weight arranged to move forward and backward within this movement area, and the weight moving forward from the vicinity of the tail of the lure body toward the head. and a stopper that can temporarily suppress the retreat of the weight in the tail direction when the weight is moved to a desired stopping position,
The stopper is constituted by a torsion spring provided in the space of the lure main body, and is capable of moving in and out of the space region through which the weight passes during movement by the tip of the arm on the load point side of the torsion spring , and A contact portion provided so as to be able to come into contact with a part of the tail side surface of the weight and a coil portion of the torsion spring can bias the contact portion in a direction that resists the retreat of the weight. A biasing means is formed,
The torsion spring has a free angle as an inferior angle, and is disposed such that the coil part is supported by the support part whose axis is perpendicular to the advancing and retreating direction of the weight, and the contact part is parallel to the axis of the support part. When the weight moves in the backward direction from the stop position and the abutting portion abuts the tail side surface of the weight, a load is applied in the torsional direction to the load point side arm. It is arranged so that
The fixing point side arm of the torsion spring is supported with play such that the coil part can rotate within a predetermined range about the axis of the support part, and the abutting part is on the tail side of the weight. The contact portion can be rotated toward the head of the lure body based on the state in which it is in contact with the surface.
A lure characterized by: The torsion spring is constituted by a double torsion spring, and the contact portion is constituted by a continuous portion in which the tips of two load point side arms provided on the two coil portions are connected. Lures listed. A shaft having an axis in the movement direction of the weight is provided in the movement area of the weight, the weight is formed in a columnar shape and is provided with a through hole parallel to the generatrix direction, and the shaft is inserted into the through hole. 3. The lure according to claim 1, wherein the weight can be moved forward and backward along the shaft by being inserted therethrough. The movement area of the weight is formed by dividing a space inside the lure body while allowing the weight to freely roll or slide, and the weight can roll or slide within the movement area. The lure according to claim 1 or 2, wherein the lure is formed of a rolled member or a sliding member.

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