JP2023131506A - Weight for fishing rod, and fishing rod - Google Patents

Abstract

To provide a weight for a fishing rod capable of changing simply and quickly a condition or a position of the gravity center of the fishing rod.SOLUTION: A weight 19 is attached to an ear tip node 11 or a second node 12. The weight 19 comprises a stainless steel having a wire diameter of about 0.4 mm. The wire is wound like a coil spring. A cross-sectional shape of the wire is a circle. The inner diameter of the weight 19 corresponds to the outer diameter of the ear tip node 11, and the weight 19 is fixed to the ear tip node 11 or the like by strained force generated by elastic deformation. The effective number of turns of the wire is about 120, and the mass of the weight 19 is about 1 g.SELECTED DRAWING: Figure 2

Description

The present invention relates to a balancer (fishing rod weight) that is attached to a fishing rod and adjusts the condition or center of gravity of the fishing rod, and a fishing rod equipped with the balancer.

There is something called "condition" that determines the specifications of a fishing rod. Condition primarily refers to the deflection curve of the entire fishing rod when tensile force or bending moment is applied to the blank, and condition is classified according to the position where the inflection point appears. For example, in a fishing rod with a "first tone", the inflection point appears on the tip side of the fishing rod, and the entire rod has tension, so it is generally easy to handle, and anglers can easily cast baits, lures, and manipulate the line. On the other hand, with a fishing rod that has a "body tone," the entire fishing rod bends significantly when subjected to a bending moment, allowing it to gently absorb the tensile force of a hit target. By designing such "tones", various fishing styles can be realized depending on the target or the specifications of the tackle used.

This "tone", once designed, is unique to that fishing rod. However, in spatula fishing, for example, thin and light contraptions are used, so when taking into account the fishing rod, a good body condition is required, while relatively heavy kneaded bait is used. When introducing a bait, a certain level of rigidity is required for the tip. In order to meet such demands, a balance adjustment member (weight) to be attached to a fishing rod has been proposed (see, for example, Patent Document 1 and Patent Document 2).

Patent No. 2901858 Japanese Patent Application Publication No. 2000-245306

The balance adjustment members 24 and 28 disclosed in Patent Document 1 change the center of gravity and tone of the fishing rod by being fixed at predetermined positions on the fishing rod. However, since the balance adjustment member cannot change its position relative to the fishing rod, the angler cannot adjust the center of gravity of the fishing rod to a desired position. In order to solve this problem, this document also discloses a balance adjustment member whose mounting position can be adjusted. However, since this adjustment mechanism involves fastening a ring-shaped balance adjustment member to the rod with a screw, the operation is not easy. Moreover, in order to securely fasten the rod, the outer diameter of the rod must be greater than a certain value, and therefore cannot be applied to, for example, spatula rods.

The weight 58 disclosed in Patent Document 2 has a so-called weight shape. Therefore, regardless of the outside diameter of the rod, it is easy to attach and detach, and its position is easy to adjust. However, depending on how the rod is bent, there is a risk that the weight 58 may come off the fishing rod.

The present invention has been made against this background, and its object is to provide a weight for a fishing rod that can be easily attached to and removed from a fishing rod and changed in position, and that can easily and quickly adjust the condition or center of gravity of the fishing rod. and a fishing rod equipped with the same.

(1) The fishing rod weight according to the present invention includes a wire wound around the outer peripheral surface of the fishing rod body. This wire has elasticity, and at least a portion thereof overlaps in the axial direction of the fishing rod main body.

According to this configuration, the fishing rod weight includes an elastic wire. Therefore, the fishing rod weight is wound around the outer peripheral surface of the fishing rod body and attached with a predetermined tension, and is movable along the axial direction of the fishing rod body.

(2) Preferably, the wire rods overlap at multiple locations along the axial direction.

In this configuration, the wire rod is wound around the fishing rod body many times. Therefore, the fishing rod weight is reliably positioned with respect to the fishing rod body. Moreover, there is an advantage that the mass of the fishing rod weight can be easily adjusted by simply changing the number of times of superimposition.

(3) It is preferable that the winding interval of the wire rod is set larger than the outer dimension of the wire rod.

In this configuration, a gap is formed between the wound wire rods. Therefore, the task of attaching and detaching the fishing rod weight to the fishing rod body becomes easier. Here, the "outer dimension of the wire rod" means the width dimension of the cross section of the wire rod, that is, the dimension along the axial direction of the fishing rod body.

(4) It is preferable that the inner dimensions of the weight gradually change along the axial direction in accordance with changes in the outer diameter of the fishing rod body.

Generally, the outer shape of the fishing rod body is tapered, and the outer diameter of the fishing rod body gradually changes along the axial direction. In this invention, since the internal dimensions of the weight correspond to changes in the outer diameter of the fishing rod body, the fishing rod weight can be more stably attached to the fishing rod body. Here, the "sink internal dimension" is the outer diameter of an imaginary circle defined by the inner ridgeline of the fishing rod weight formed by winding the wire rod.

(5) The wire is preferably made of a metal material having an outer dimension of 0.2 mm or more and 1.0 mm or less.

In this case, the mass of the fishing rod weight can be adjusted to 2.000 g (grams) or less with high precision. Moreover, the work of winding the wire becomes easier. In addition, when the cross section of the wire is circular, the structure of the weight for a fishing rod is simple, and the work of attaching and detaching it to the fishing rod body becomes easier.

(6) A fishing rod may be configured including the fishing rod weight.

According to this invention, the weight for the fishing rod can be easily attached to and removed from the fishing rod body and its position can be changed, so that the angler can easily and quickly change the condition of the fishing rod or the position of the center of gravity.

FIG. 1 is an external perspective view of a fishing rod 10 according to an embodiment of the present invention. FIG. 2 is an enlarged perspective view of the main part of FIG. 3 is a partially cross-sectional perspective view of FIG. 2. FIG. FIG. 4 is a perspective view of the weight 19 according to one embodiment of the present invention. FIG. 5 is an enlarged perspective view of a main part of a fishing rod 30 according to a first modification of the present embodiment. FIG. 6 is an enlarged partially cross-sectional perspective view of a fishing rod 40 according to a second modification of the present embodiment.

Preferred embodiments of the present invention will be described below with appropriate reference to the drawings. It should be noted that the present embodiment is only one aspect of the fishing rod and the weight for a fishing rod according to the present invention, and it goes without saying that the embodiment may be modified without changing the gist of the present invention.

<Structure of fishing rod and fishing rod weight>

FIG. 1 is an external perspective view of a fishing rod 10 according to an embodiment of the present invention.

The fishing rod 10 is a so-called long rod, and is typically used for spatula fishing. The fishing rod 10 includes a fishing rod body 17, a grip 18, and a weight 19 (corresponding to a "fishing rod weight" described in the claims). The fishing rod body 17 consists of six blanks. Each blank is referred to as a first node 11, a second node 12, a third node 13, a fourth node 14, a fifth node 15, and a sixth node 16 in order from the tip side. The first knot 11 and the sixth knot 16 are sometimes particularly referred to as the tip knot and the root knot, respectively. Note that the number of blanks that make up the fishing rod 10 is not particularly limited.

The grip 18 is provided on the base 16. The angler operates the fishing rod 10 by grasping the grip 18. The main operations of the fishing rod 10 when used as a spatula rod are to introduce a tackle and to take in a hit fish.Especially in the case of spatula fishing, it is important for the angler to move the baited bait to the tip section 11 and the second section. It is important to be able to use the elasticity of the bar 12 to softly throw the ball at a desired point. For this reason, research has been conducted on the rigidity of the tip section 11 and its deflection when external force is applied, and various improvements have been made to the condition of the fishing rod.

In this embodiment, the length, original diameter, and tip diameter of the second section 12 are set to 700 mm, 5.9 mm, and 4.2 mm, respectively, and the length, original diameter, and tip diameter of the tip section 11 are set to 700 mm, 5.9 mm, and 4.2 mm, respectively. They are set to 530 mm, 3.27 mm, and 1.05 mm, respectively. In this way, the external shape of each node 13 to 16 generally exhibits a predetermined taper. The length, base diameter, and tip diameter of each section 11 to 12 are changed depending on the specifications of the fishing rod.

Each section 11-16 is formed in a known manner. Typically, a resin sheet (prepreg) reinforced with so-called carbon fibers is cut into a predetermined shape and wound around a mandrel. After this prepreg is heat-treated at a predetermined temperature, the mandrel is pulled out, whereby the cylindrical nodes 11 to 17 are fired. The fishing rod 10 is constructed by assembling these sections 11 to 16 in a side-by-side manner. However, each section 11 to 16 may be assembled in a swing type or other joint type.

A feature of this embodiment is that the weight 19 is detachably attached to the tip section 11.

FIG. 2 is an enlarged perspective view of the main part of FIG. 1, and schematically shows a state in which the weight 19 is attached to the tip section 11. FIG. 3 is a partially cross-sectional perspective view of the weight 19 schematically shown.

In these figures, reference numeral 20 indicates the axial direction of the fishing rod main body 17, with arrow 21 indicating the tip side and arrow 22 indicating the base end side.

The weight 19 is made of an elastic wire. The cross-sectional shape of this wire is circular in this embodiment. The material of the wire rod in this embodiment is stainless steel (density 7.93 g/cm3). However, the cross-sectional shape of the wire constituting the weight 19 is not limited to a circular shape, and the material may be a metal other than stainless steel, resin, or the like. By changing the material of the wire, naturally the density of the wire also changes.

In this embodiment, the weight 19 is formed by winding the wire rod into a coil shape. This coil-shaped weight 19 is fitted into the tip section 11 and fixed at a predetermined position. The attachment and detachment of the weight 19 will be described in detail later, but the weight 19 expands in diameter elastically and is fixed to the tip section 11 by its tension.

FIG. 4 is a perspective view of the weight 19 in its natural state.

In this embodiment, the specifications of the weight 19 in its natural state are as follows. Here, the "natural state" refers to a state in which no external force acts on the weight 19.

Wire diameter 23 (corresponding to the "outer dimension of the wire" described in the claims) = 0.4 mm (however, it can be set to 0.2 mm to 1.0 mm). Note that when the cross-sectional shape of the wire constituting the weight 19 is other than circular, the wire diameter 23 means the width dimension of the cross section of the wire (that is, the dimension along the axial direction 20).

Inner diameter 24 (corresponding to the "inner weight dimension" described in the claims) = 1.0 mm to 35.0 mm. The inner diameter 24 is preferably set to be about 0.5 mm smaller than the outer diameter of the fishing rod body 17 at a predetermined position of the fishing rod 10 to which the weight 19 is fixed. In addition, when the cross-sectional shape of the wire constituting the weight 19 is other than circular, the inner diameter 24 means the diameter of the ridgeline (virtual circle) in contact with the inner wall of the wound wire.

Effective number of turns 25 = 120 (however, it can be set to 1 to 240). By winding the wire in this manner, the wire itself overlaps at least one point or more along the axial direction 20. That is, the wound wire rods are aligned along the axial direction 20.

Pitch 26 (corresponding to the "winding interval" described in the claims) = 1.0 mm. However, the pitch 26 may be set to a dimension equal to or larger than the wire diameter 23.

The winding direction is not particularly limited, and either the left or right direction may be employed.

According to the above specifications, the weight 19 has the appearance of a coil spring, and its mass can be adjusted to about 0.003 g to 1.000 g depending on the wire diameter 23, inner diameter 24, and effective number of turns 25. However, by changing the material of the wire constituting the weight 19 and adjusting the effective number of turns, the mass of the weight 19 can be adjusted up to about 2.000 g. Note that the end portion of the weight 19 may be provided with an end turn as in the design of a coil spring, or may be formed into a closed end or an open end.

In this embodiment, the inner diameter 24 of the weight 19 is constant along the axial direction 20. However, this inner diameter 24 may be designed to gradually change along the axial direction 20 in response to a change in the outer diameter of the tip section 11 (i.e., the taper). The effects when the inner diameter 24 of the weight 19 changes according to the taper formed in the tip section 11 will be described later.

<How to use fishing rods and fishing rod sinkers>

The angler can attach the weight 19 to the tip section 11 of the fishing rod body 17. Specifically, the weight 19 is fitted while being slid from the tip of the tip section 11 toward the base end side 22 along the axial direction 20. Since the outer shape of the tip section 11 exhibits the above-mentioned taper, when the weight 19 is fitted into the tip section 11, the two are pressed relative to each other in the radial direction. Since the wire constituting the weight 19 is elastic, the weight 19 is elastically deformed in the radial direction and the inner diameter 24 is expanded.

As a result, as shown in FIG. 2, the weight 19 is attached to the tip section 11 by the tension force caused by the elastic deformation while being wound around the outer peripheral surface of the tip section 11. In the same figure, as a result of the weight 19 being pushed into the base end side 22, it is compressed in the axial direction 20 and the gap 27 between the wires becomes smaller, but when the weight 19 is returned to the front end side 21, , the gap 27 widens. That is, the angler can fix the weight 19 at a desired position by sliding the weight 19 relative to the tip section 11.

In this embodiment, since the weight 19 is formed into a coil spring shape by winding the wire rods, the wire rods are overlapped and aligned along the axial direction 20. Therefore, instead of fitting the weight 19 from the tip of the tip section 11, the angler simply inserts the fishing rod main body 17 between the overlapped wire rods and rotates the weight 19, and then inserts the weight 19 from the desired position on the fishing rod main body 17. 19 can be attached. Therefore, the weight 19 can be attached to the second joint 12, the third joint 13, etc. other than the tip joint 11. That is, when the fishing rod 10 is provided with a fishing line guide, when an angler inserts the weight 19 from the tip of the tip section 11, the fishing line guide becomes an obstacle and prevents him from sliding the weight 19 to a desired position. Although there is a risk that the weight may be lost, even in such a case, the weight 19 according to the present embodiment can be easily attached to the fishing rod body 17 while avoiding the fishing line guide.

By providing the weight 19 on the tip section 11, the manner in which the tip section 11 and the second section 12 bend when an external force is applied, as well as the condition of the fishing rod 10, can be changed. Moreover, the angler can easily change the position of the weight 19 with respect to the tip section 11, and the weight 19 can be easily attached and detached. Therefore, the angler can easily and quickly change the condition or center of gravity position of the fishing rod 10, and can easily and accurately insert a tackle in spatula fishing, for example.

The weight 19 can be attached to the second section 12 other than the tip section 11 or to the fishing rod body 17 other than that, so the angler can adjust the desired condition of the fishing rod 10 during actual fishing by changing the position of the weight 19. can be easily realized. Further, since the weight 19 is formed by winding the wire rod, the weight 19 also easily deforms following the deformation of the fishing rod body 17. As a result, the angler does not feel any discomfort while retrieving a hit fish.

Incidentally, the molded fishing rod main body 17 generally has "cello eyes" formed thereon. This cello is a forming line produced by a forming tape (a tape that tightens the prepreg wound around the mandrel). Since the wire constituting the weight 19 is wound, the angler can adjust the direction of the winding to correspond to the grooves formed on the fishing rod body 17. For example, by aligning the winding direction of the wire rod with the rows, it can be more easily attached to the fishing rod body 17 while rotating the weight 19, and by setting the winding direction so as to go against the rows. , the weight 19 can be held more firmly against the fishing rod body 17. Therefore, when the fishing rod 10 is configured for heavy casting, such as a casting rod, the weight 19 is prevented from coming off during operation of the fishing rod body 17.

The effective number of turns of the wire constituting the weight 19 is not particularly limited as long as it is one or more. In this embodiment, as shown in FIG. 2, the wire is overlapped at multiple locations along the axial direction 20, so the wire is wound around the tip node 11 many times. . Therefore, the weight 19 is reliably positioned with respect to the tip section 11.

In this embodiment, as shown in FIG. 4, the pitch 26 (winding interval) of the wire rods constituting the weight 19 is set larger than the wire diameter 23, and a gap 27 is formed between the wire rods wound. Ru. Therefore, there is an advantage that the work of attaching and detaching the weight 19 to the fishing rod body 17 becomes easier.

In this embodiment, the inner diameter 24 of the weight 19 may gradually change along the axial direction 20 in accordance with the change in the outer diameter of the tip section 11. In that case, the weight 19 is more stably attached to the tip section 11. The same is true when attached to nodes 12 to 16 other than the tip node 11.

In this embodiment, the weight 19 is made of a metal material whose wire diameter is 0.2 mm or more and 1.0 mm or less, so the mass of the weight 19 can be adjusted to 2.000 g or less with high accuracy. Moreover, the work of winding the wire becomes easier.

<Modified example of embodiment>

FIG. 5 is an enlarged perspective view of a main part of a fishing rod 30 according to a first modification of the present embodiment.

The fishing rod 30 according to this modification differs from the fishing rod 10 described above in the shape of the weight 31. That is, whereas the weight 19 attached to the fishing rod 10 (see FIG. 2) is formed by winding the wire into a coil shape many times, the weight 31 is formed by winding the wire into a coil shape. It is formed into a ring shape that is wound around the ring. Note that the other configurations are the same as those in the embodiment described above.

FIG. 6 is an enlarged partially cross-sectional perspective view of a fishing rod 40 according to a second modification of the present embodiment.

The fishing rod 40 according to this modification differs from the fishing rod 10 described above in the cross-sectional shape of the wire constituting the weight 41. That is, while the weight 19 is made of a wire rod having a circular cross section, the cross section of the wire forming the weight 41 is rectangular. In this case, the wire diameter 23 of the wire constituting the weight 41 is the dimension along the axial direction 20 of the cross section of this wire.

In the weight 41 according to this modification, the contact portion with the first node 11 is a flat surface. Therefore, since the weight 41 contacts the first node 11 over a wider area than the contact area between the weight 19 and the first node 11, the weight 41 is more stably attached to the first node 11. Furthermore, since the cross-sectional area of the wire constituting the weight 41 is rectangular, it is easier to design the cross-sectional area to be larger than a circular cross-sectional area. Therefore, in designing a weight with a predetermined mass, it is possible to downsize the weight.

10... Fishing rod 11... First section 12... Second section 17... Fishing rod body 19... Weight 20... Axial direction 23... Wire diameter 24... Inner diameter 25 ...Effective number of turns 26...Pitch 27...Gap

Claims (6)

Equipped with a wire rod that is wound around the outer circumferential surface of the fishing rod body,
The wire rod has elasticity, and at least a portion thereof overlaps in the axial direction of the fishing rod body. The fishing rod weight according to claim 1, wherein the wire rods overlap at a plurality of locations along the axial direction. The fishing rod weight according to claim 1 or 2, wherein the winding interval of the wire rod is larger than the outer dimension of the wire rod. The weight for a fishing rod according to any one of claims 1 to 3, wherein an internal dimension of the weight gradually changes along the axial direction in accordance with a change in an outer diameter of the fishing rod body. The fishing rod weight according to any one of claims 1 to 4, wherein the wire is made of a metal material having an outer dimension of 0.2 mm or more and 1.0 mm or less. A fishing rod comprising the fishing rod weight according to any one of claims 1 to 5.

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