JP2002223668A - Fishhook and method for producing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fishhook having a reinforced gap so as not to deform when a big game is caught in particular and ensuring such a caught fish to be hard to injure. SOLUTION: This fishhook 1 is such that the sectional shape of a curved gap 3 between a shank 2 and a point 4 is made nearly square; wherein the gap 3 is approximately planarly finished with both the sides 3a and 3a, the inner side 3b and the outer side 3c put to press working. Owing to the above three-dimensional press working, the gap 3 is reinforced further, suppressing the losing of a big game in its landing, the flat face of the concavely curved face of the inner side 3b is put to planar contact with the oral cavity of a caught fish, thus preventing the fish from being injured and smoothing the landing of the big game.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a hook,
More particularly, the present invention relates to a hook-shaped hook suitable for catching a large fish without catching or damaging the fish.

[0002]

2. Description of the Related Art A fishing hook manufactured by bending a round bar-shaped steel wire into a hook shape has a substantially straight shaft portion (shank) to which a fishing line or the like is moored and a substantially U-shaped curved portion from the shaft portion. Rotating roller (vent) and needle tip (point) extending from the rotating roller
The overall shape of this fishhook varies widely depending on the type of fish to be fished, such as a sleeve shape and a lobster shape.In general, fish hooks of large fish have a large hood and a so-called hood and a large wire diameter. Robust ones are used. Such a hook with a deep futokoro is easy to be hooked on the mouth of a large fish, and a load from the fish is concentrated on the futokoro portion at the time of landing for lifting the hooked fish. If the load concentrates on the roller during landing, the possibility of deformation and breakage of the roller increases, so the curved shape of the entire roller can be devised to strengthen the roller, or the cross-sectional shape of the wire rod of the roller Innovative measures such as strengthening the material of the shaft and the hood.

For example, FIG. 4 (A) shows a conventional shape of a hook-shaped fishing hook 11 having a strengthened hood roller portion. The fishing hook 11 comprises a round bar-shaped shaft portion 12, a hood roller portion 13, and a needle tip portion 14.
As shown in FIG. 4 (B), the flute roller portion 13 curved in a substantially U-shape is finished in a vertically long elliptical cross-sectional shape in which both side surfaces 13a of the round bar steel wire are two-dimensionally pressed. When the hood roller portion 13 is two-dimensionally pressed in such a manner that its substantially elliptical cross-sectional shape is vertically elongated in the bending direction, the weight of the fish body applied to the hood roller portion 13 from the needle tip portion 14 is strengthened by press forging and the hood roller portion 13 is strengthened. The load resistance of the roller portion 13 against the above load increases, and it becomes difficult to deform even during landing.

[0004]

A fishing hook 11 as shown in FIG.
The fulcrum roller part 13 has achieved some success in strengthening by pressing both side surfaces 13a, 13a, but depending on the form of various types of fishing tackles using this hook 11, or Depending on the way of hooking or taking in, the roller portion 13 may be deformed or broken due to insufficient strength. Also, when the fish hooked on the hook 11 escapes in the water, the vertex portion on the inner surface side of the semicircular cross section of the hood roller portion 13 bites into the mouth of the fish intensively, and the mouth of the fish is easily damaged by the hood portion 13, and especially large fish. Fish may be severely damaged during this fight, as they fight for a long time in the water. Such damage to the fish may make smooth riding difficult and may result in the escape of the fish, and also detract from the appearance and commercial value of the fish caught.

[0005] It is an object of the present invention to provide a fishing hook in which the roto-roll portion is further reinforced and the hooked fish is hardly damaged.

[0006]

According to a first aspect of the present invention, there is provided a fishing hook according to the present invention, wherein both side surfaces and an inner and outer surface of a curved shaft-shaped roller portion are substantially flat. The cross-sectional shape of the roto-roll portion of this fishing hook is substantially square, and two opposing sides thereof are flat sides of the roto-roll portion, and the remaining two opposing sides are an inner surface and an outer surface of the roto-roll portion.

According to a second aspect of the present invention, there is provided a fishing hook manufacturing method in which both side surfaces and an inner and outer surface of a round bar-shaped linear portion forming a curved shaft-shaped roller portion are formed into a substantially square cross-section by pressing into a flat shape. The square rod-shaped linear portion is characterized in that it is curved so that the inner surface side thereof becomes a concave curved plane to form a flute roller portion.

[0008] Here, a hook-shaped hook having a curved shaft-shaped roller is, for example, two-dimensionally pressed on both side surfaces of the roller in the same manner as the conventional fishing hook of FIG. Pressing the inner and outer surfaces of the part
As a result, the roller portion is three-dimensionally pressed so as to have a substantially square cross section. In this three-dimensional press working, the shaft portion is forged in two steps and strengthened, and the inner surface becomes a curved plane and comes into surface contact with the mouth of the hooked fish, and the hooked fish fights for a long time. Will also be hard to hurt.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A hook 1 of the embodiment shown in FIGS. 1A and 1B is applied to a hook-shaped hook similar to that shown in FIG. 3, and has a substantially linear shaft portion 2 and a substantially U-shape. It has a flared roller portion 3 and a sharp needle tip 4. The overall shape of the fishing hook 1 is not limited to the Ise-ama shape as shown in FIG. 1 (A), and a chimoto 5 for anchoring a fishing line to the tip of the shaft 2 is formed.
The shape of the shaft tip may be arbitrary. Although FIG. 1 shows a single hook type (single hook) hook, a double hook type or a larger number of hooks may be used. As shown in FIG. 1 (B), two-dimensional or three-dimensional press working of the roller portion 3 is performed,
The a, 3a, the inner surface 3b, and the outer surface 3c are planarized.

A hook 1 having a curved axial roller 3
Is manufactured from a round bar-shaped steel wire. During the manufacturing, a round bar-shaped straight portion 3 ′ of the steel wire as shown in FIG.
As shown by arrows (B), the linear portion 3 'is forged into a substantially square cross section by pressing simultaneously or sequentially from four directions in two orthogonal directions. The outer periphery of the pressed linear portion 3 'is formed of four continuous planes (3a-3b-3b-3c), and the linear portion 3' is bent such that the inner surface 3b of the four planes has a concave curved surface. The fishing hook 1 is manufactured by molding.

When the roller 3 of the hook 1 is pressed to have a substantially square cross section as described above, the inside of the shaft of the curved roller 3 is forged in two stages from left, right, up and down, as shown in FIG. It is further strengthened compared to the conventional one. And both side surfaces 3 which are parallel to the bending direction of the shaft portion 3
a and 3a are forged and reinforced plane portions,
When the fish is hooked and pulled, the load of the fish applied in the surface direction is applied to both side surfaces 3a and 3a as shown by arrow e in FIG. Thus, the two-dimensionally or three-dimensionally pressed roller portion 3 increases the substantial strength of the hook 1.

When the mouth of the fish hooks on the tip of the fishing hook 3, the mouth of the fish reaches from the tip 4 to the hood 3. When the fish is to be pulled up in this state, the inner surface 3b of the hood 3 is brought into the mouth of the fish. Hit hard. At this time,
Since the inner surface 3b is a curved flat surface, the flat inner surface 3b comes into surface contact with the mouth of the fish as shown by the arrow f in FIG. As a result, the mouth of the fish is less likely to be damaged by the hood 2 even when the fish is prolonged during the landing when lifting the fish that has caught the fish. Is less likely to be damaged.

The cross-sectional shape of the hood roller portion 3 is desirably a substantially square shape in the production of three-dimensional press working from two directions. However, depending on the thickness and material of the fishing hook, a trapezoidal cross section or both side surfaces 3a, It may have a polygonal cross-sectional shape in which four corners of 3a and inner and outer surfaces 3b and 3c are chamfered.

Further, as shown in FIG. 1A, both side surfaces 3a and inner and outer surfaces 3
By making b and 3c planar, the holding force from the burrs to the hoods increases. On the side of the needle tip 4, by extending the flat portion to the base end of the burrs 6, a dent formed by the burrs on the base end of the burrs 6 (see FIG. 4A). And the holding power of the hook can be increased.

[0015]

According to the present invention, since both side surfaces and inner and outer surfaces of the curved fulcrum portion are flattened by two-dimensional or three-dimensional press working, the fulcrum portion is forged in two stages to increase strength, It is difficult to deform due to the load of the hanging fish,
Therefore, it is possible to provide a highly reliable fishhook with less variance for letting the catched fish escape. Also, since the load on the mouth of the fish is intensively applied at the time of landing when catching fish that is hung, the inside surface of the hook roller has a curved flat surface. However, there is an effect that the risk of damaging the fish even after a long fight is reduced, a smoother landing is possible, and a hook that improves the appearance and commercial value of the fish caught is provided. Such an effect is more remarkable as the weight of the fishing target fish is larger.

[Brief description of the drawings]

FIG. 1A is a side view of a fishing hook showing an embodiment of the present invention, and FIG. 1B is an enlarged sectional view taken along line XX.

2 (A) is a cross-sectional view of the fishing roller of FIG. 1 before processing of a roller portion, and FIG. 2 (B) is a cross-sectional view after pressing.

FIG. 3 is an enlarged partial perspective view of the hook of FIG. 1;

FIG. 4A is a side view of a conventional fishing hook, and FIG.
It is an expanded sectional view of a line.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Fishing hook 2 Shaft part 3 Rotating roller part 3a Both side surfaces 3b Inner surface 3c Outer surface 4 Needle tip part 5 Chimoto part 6

Claims (2)

[Claims] 1. A fishing hook according to claim 1, wherein both sides and inner and outer surfaces of the curved shaft-shaped roller are substantially flat. 2. Both side surfaces and inner and outer surfaces of a round bar-shaped linear portion forming a curved shaft-shaped rotary roller portion are pressed into a flat shape, and the square bar-shaped linear portion is curved such that the inner surface thereof has a concave curved plane. A method of manufacturing a fishing hook, wherein the fishing hook is formed by shaping.