JPH11262345A - Fishing hook and its production - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a fishing hook enabling the formation of a massive sinker by a method except methods comprising pouring melted lead into molds, and to provide a method for producing the same. SOLUTION: This fishing hook is obtained by disposing a massive sinker on the shaft portion 1 of a hook main body 3 comprising the straight shaft portion 1 and a hook-like bent point portion 2 continuously formed on the tip side of the shaft portion 1. Therein, the sinker has a half-divided structure, and the half bodies 17 and 17 of the sinker are adhered and fixed in the state that the shaft portion 1 of the fishing hook main body 3 is nipped between the joining surfaces 18 of a pair of the sinker half bodies 16 and 17.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fishhook and a method of manufacturing the same, and more particularly, to a fishhook with a sinker used for bass fishing, sea bottom fishing and the like, and a method of manufacturing the same.

[0002]

2. Description of the Related Art For example, there is a hook with a sinker as a hook used for bass fishing, sea bottom fishing and the like. As shown in FIGS. 9 (a) and 9 (b), this type of fishing hook has a shaft portion 1 made of stainless steel and a hook-shaped bent portion formed on the tip of the straight shaft portion 1 in series. A bulk sinker 4 (weight) is provided on the shaft portion 1 of the needle main body 3 composed of the two.
A bent portion 5 is formed at the base end of the shaft portion 1, and a mounting annular portion 6 is formed at the end thereof.

The sinker 4 is generally made of lead, and is manufactured by using dies 7 and 8 as shown in FIGS. 10 (a) and 10 (b) in the following manner. That is, molds 7 and 8 having a half-split structure in which sinker recesses 9 and 10 are formed on the abutment surface are prepared, and after setting the shaft 1 of the needle body 3 to one mold 7, the other mold 8 is removed. The shaft portion 1 of the needle main body 3 is brought into contact with the shaft portion 1 so as to be sandwiched.

In this state, the concave portions 9 and 10 in the molds 7 and 8 are
The molten lead is injected from small holes 12 communicating with the cavities 11 formed by the method described above to fill the cavities 11. Thus, the lead sinker 4 is formed on the shaft portion 1 of the needle main body 3.

[0005]

As described above, since the sinker 4 provided on the shaft 1 of the needle body 3 has a low melting point of lead, the molten lead is poured into the molds 7 and 8. Although it is easily manufactured, there are the following problems.

That is, in order to produce molten lead, a pre-treatment step for melting lead metal is required, and a post-treatment step of, for example, draining remaining molten lead is also necessary. There has been a risk of causing a pollution problem when handling lead, and its use has become difficult.

Therefore, a method of melting and manufacturing a metal other than lead, for example, iron is also conceivable. However, since the melting point of iron is high, if high-temperature molten iron is poured into a mold in which the heat-treated needle body is set, the heat treatment of the needle body is impaired, which is not a suitable means.

In view of the above, the present invention has been proposed in view of the above-mentioned problems, and an object thereof is to form a massive sinker by a method other than pouring molten lead into a mold. It is an object of the present invention to provide a fishing hook and a method of manufacturing the same.

[0009]

As a technical means for achieving the above-mentioned object, a fishing hook according to the present invention comprises a shaft portion, and a hook-shaped needle tip formed in a series on a tip side of the shaft portion. In the case where a massive sinker is provided on a shaft portion of a needle body composed of a bent portion, the sinker has a divided structure, and the sinker is divided in a state where the shaft portion of the needle body is sandwiched between joining surfaces of a plurality of sinker divided pieces. The pieces are adhesively fixed.

[0010] Further, a method of manufacturing a fishhook according to the present invention comprises:
A method of attaching a massive sinker to a shaft portion of a needle main body including a shaft portion and a hook-shaped bent portion formed in a series of hooks on a tip side of the shaft portion, wherein the sinker has a divided structure. The present invention is characterized in that the shaft portion of the needle body is sandwiched between the joining surfaces of the plurality of sinker segments, and thereafter, the adhesive is interposed between the joining surfaces of the sinker segments, thereby joining the sinker segments together.

[0011] The above means is advantageous in that a massive sinker can be formed on the shaft of the needle body by a simple method without using a method of pouring molten lead into a mold. is there.

In the present invention, a connecting portion for connecting each of the sinker divided pieces is provided, an uneven portion which is fitted to the joint surface of the sinker divided pieces is formed, or the joint surface of the sinker divided piece is formed. It is desirable to form a recess for fitting the shaft of the needle body.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below in detail. The same or corresponding parts as those in FIG. 9 are denoted by the same reference numerals. The present invention is also applicable to shapes different from the sinker shape in the embodiment described in detail below.

The fishing hook according to the embodiment shown in FIG. 1 has a metal shaft 1 to which toughness is imparted by, for example, heat treatment (for example, quenching and tempering) and a straight shaft 1, for example. A lump-shaped sinker 15 [FIGS. 3 (a) and 3 (b)]
Reference]. A bent portion 5 is formed at the base end of the shaft portion 1, and a mounting annular portion 6 is formed at the end thereof.

The sinker 15 is made of a material having a large specific gravity and good moldability and not causing a pollution problem, such as a metal (including alloy) or resin other than lead, or a resin mixed with metal powder. Has a split (half-split) structure,
A pair of sinker split pieces (hereinafter, referred to as a sinker half) 1
6 (see FIG. 2 (b)) and 17 (see FIG. 2 (a)) are respectively provided on the joint surfaces 18 and 19 with the shaft portion 1 of the needle body 3 (the annular mounting portion 6 at the distal end and the curved tip of the needle). Bent part 5 except part 2
) Are formed therein. Here, the case where the sinker 15 is divided into two will be described, but the present invention is not limited to this.
Multiple divisions of three or more are also possible.

The fishing hook of this embodiment is manufactured in the following manner.

First, as described above, the concave portion 2 into which the bent portion 5 excluding the shaft portion 1 and the mounting annular portion 6 of the needle main body 3 is fitted.
A pair of sinker halves 16, 17 on which 0, 21 are formed are prepared.

Then, the shaft portion 1 (including the bent portion 5) of the needle main body 3 is fitted into a concave portion 20 formed on the joint surface 18 of one sinker half 16, and the other sinker half 17 is placed thereon. The shaft portion 1 of the needle main body 3 is fitted into the concave portion 21 formed on the joint surface 19 and the two sinker halves 1 are fitted.
6 and 17 (see FIGS. 3A and 3B).

At this time, at least one sinker half 1
An adhesive (not shown) is applied to the joint surfaces 18 and 19 of the joints 6 and 17, and then the shaft 1 of the needle body 3 is fitted into the recesses 20 and 21 of the joint surfaces 18 and 19 as described above. If both the sinker halves 16 and 17 are overlapped and adhered while the shaft 1 is sandwiched between the two sinker halves 16 and 17, the sinker halves 16 and 17 are fixedly attached to the shaft 1. And the sinker 15 can be formed.

In this embodiment, the pair of sinker halves 16 and 17 are independently separated from each other. However, as shown in FIGS.
17 connected by a connecting portion 22 is also possible,
The two sinker halves 16, 17 are overlapped by bending around the connecting portion 22. By providing the connecting portion 22 between the two sinker halves 16 and 17 in this manner,
The two sinker halves 16 and 17 do not fall apart, the two can be easily joined, and the working efficiency is improved.
The position where the above-mentioned connecting portion 22 is provided is arbitrary. As shown in FIG. 4B, the concave portions 20 and 17 of the respective sinker halves 16 and 17 are located on the opposite side to that of FIG.
It is also possible to provide a connecting portion 22 around the periphery except for the end portion 21.

Further, as in the other embodiment shown in FIG. 5, the present invention is also applicable to a structure in which a part of the mounting annular portion 6 of the needle body 3 is embedded in the sinker 15. In this case, as shown in FIGS. 6A and 6B, two sinker halves 16,
At the ends of the recesses 20 and 21 of 17, there are formed expanded portions 25 and 26 into which a part of the above-mentioned attachment annular portion 6 is fitted. Also, as in the case shown in FIGS. 4A and 4B described above,
As shown in FIGS. 7A and 7B, two sinker halves 1
It is also possible to connect 6, 17 with the connecting portion 22.

Further, as shown in FIG. 8, uneven portions 23 and 24 may be formed so as to be fitted to the respective joining surfaces 18 and 19 of the pair of independently separated sinker halves 16 and 17. That is, a concave portion 23 having a predetermined shape is formed in the joint surface 18 of one sinker half 16, and the concave portion 2 is formed in a portion of the joint surface 19 of the other sinker half 17 opposed to the concave portion 23.
A convex part 24 having a predetermined shape to be fitted into the third part 3 is formed. In this way, when the two sinker halves 16, 17 are joined, their respective positions can be easily adjusted, no mutual displacement occurs, and not only the workability but also the quality can be improved. The above-mentioned uneven portions may be provided either partially or entirely on the joining surfaces 18 and 19 of the sinker halves 16 and 17.

In this way, the bulky sinker 15 can be formed on the shaft portion 1 by a simple method without using a conventional method of pouring molten lead into a mold, which is preferable. . In addition, a user such as a fisherman can select a desired sinker from different weights and independently attach it to a certain type of needle body.

[0024]

According to the present invention, the sinker has a divided structure, and the sinker divided pieces are joined and integrated with the adhesive while the shaft portion of the needle body is sandwiched between the joining surfaces of the plurality of sinker divided pieces. The bulky sinker can be formed on the shaft of the needle body by a simple method without using a conventional method of pouring molten lead into a mold, so that it does not cause a pollution problem. It is possible to provide a hook suitable for protecting the environment.

[Brief description of the drawings]

FIG. 1 is an exploded view showing a needle body and a pair of sinker halves according to an embodiment of the present invention.

FIGS. 2A and 2B are front views showing a pair of sinker halves;

FIG. 3A is a front view including a partially omitted portion of a fishing hook with a sinker half mounted, and FIG. 3B is a cross-sectional view taken along line AA in FIG.

FIG. 4A is a front view showing an example in which a connecting portion is provided between a pair of sinker halves; FIG. 4B is a front view showing another example in which a connecting portion is provided between a pair of sinker halves;

FIG. 5 is a partially enlarged front view showing another embodiment of the present invention.

6 (a) and 6 (b) are partially enlarged front views showing a pair of sinker halves in another embodiment shown in FIG.

7A is a partially enlarged front view showing an example in which a connecting portion is provided between a pair of sinker halves in the other embodiment shown in FIG. 5, and FIG. 7B is a partially enlarged front view in another embodiment shown in FIG. Partially enlarged front view showing another example in which a connecting portion is provided between the sinker halves of FIG.

FIG. 8 is a cross-sectional view showing an example in which uneven portions are formed on a joining surface of a half of a sinker.

9A is a front view showing a conventional example of a hook with a sinker; FIG. 9B is a side view of FIG. 9A;

10A is a front view including a partly omitted portion showing a mold for forming a sinker, and FIG. 10B is a cross-sectional view taken along line BB of FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Shaft part 2 Needle bent part 3 Needle body 15 Sinker 16, 17 Sinker divided piece (sinker half) 18, 19 Joining surface 20, 21 Concave part 22 Connecting part 23 Concave part 24 Convex part

Claims (8)

[Claims] 1. A needle body comprising a shaft portion and a hook-shaped bent portion formed in a series of hooks at a tip end of the shaft portion, wherein a lump-shaped sinker is provided on the shaft portion of the needle body. A divided structure, and the sinker divided pieces are bonded and fixed with the shaft portion of the needle body sandwiched between the joining surfaces of the plurality of sinker divided pieces. 2. The fishing hook according to claim 1, wherein the sinker having the split structure has a connecting portion connecting the sinker split pieces. 3. The fishing hook according to claim 1, wherein an uneven portion is formed on the joining surface of the divided pieces of the sinker so as to fit each other. 4. The fishing hook according to claim 1, wherein a concave portion for fitting a shaft portion of the needle main body is formed on a joint surface of the sinker divided piece. 5. A method of attaching a massive sinker to a shaft portion of a needle body comprising a shaft portion and a hook-shaped bent portion formed in a series on a tip end side of the shaft portion, wherein the sinker is provided. The needle portion shaft is sandwiched between the joining surfaces of the plurality of sinker divided pieces having the divided structure, and then the sinker divided pieces are joined and integrated by interposing an adhesive between the joining faces of the sinker divided pieces. A method for manufacturing a fishing hook characterized by the above-mentioned. 6. The method according to claim 5, wherein the sinker having the split structure has a connecting portion for connecting each of the sinker split pieces. 7. The method for manufacturing a hook according to claim 5, wherein an uneven portion which fits mutually is formed on a joint surface of the sinker divided piece. 8. The method according to claim 5, wherein a concave portion for fitting a shaft portion of the needle main body is formed in a joint surface of the sinker divided piece.