JPH07308144A - Weight for line fishing and production thereof - Google Patents

Abstract

PURPOSE:To realize firm and steady attachment of a weight to the fishing line without any slippage and damage despite that it is fitted from the radial direction. CONSTITUTION:The weight is composed of the main weight body A of C-shaped cross section having a divided groove 11 for fitting itself to the fishing line 10 and an elastic bar B which has a divided groove for fitting itself to the line and an outer diameter larger than the inner diameter of the main weight body and the elastic bar B is fitted inside the hollow part of the main weight body A so that the divided grooves are made to coincide with each other into a through hole and further the bar B is kept in a compressed state in which expanding force for restoration generated by forced shrinking deformation is stored.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fishing weight and its manufacturing method.

[0002]

2. Description of the Related Art A generally-used fishing weight is made of lead, which has a large mass and is easily plastically deformed, and is provided with a split groove so that it can be attached to a fishing line in a radial direction. There is also a commercially available product in which an elastic mat is packed in the split groove in order to prevent the fishing line from being damaged.

However, when any of them is attached to a fishing line and used, it must be crushed by an angler's teeth or pliers so as to close the split groove of the weight, which is very troublesome. Even in the fixed state, it is non-uniform / unstable depending on the artificial closing force, so that it is easy to slip along the fishing line with time.

Further, since it cannot be removed after it has been once fixed, for example, when it is desired to change the weight, especially to reduce the weight, the fishing line is cut from directly above the position where the weight is fixed, and the tackle below it is cut. After discarding with
It is also necessary to reset these to new ones.

As countermeasures against such a problem, in addition to JP-B-64-3349 and JP-B-3-13190, JP-B-49-35 which is considered to be the closest to the present invention.
No. 914 is known.

[0006]

However, in the construction of Japanese Utility Model Publication No. 64-3349, the elastic tube (3) press-fitted into the through hole (2) of the weight main body (1) first causes the Harris (fishing line) ( If the damage of 4) can be prevented, the leopard cannot be attached to the fishing line (4) in the radial direction. The elastic tube (3) needs to be passed through the fishing line (4) from the longitudinal direction thereof.

Further, the inner diameter of the tube of the reduced diameter portion is such a size that the fishing line (4) can be freely inserted without being pressed, and therefore, if the attaching position to the fishing line (4) can be changed,
Separate toothpicks (5) must be prepared and a pair of them must be inserted from the upper and lower ends of the elastic tube (3).
Not only is it still complicated, but there is a risk that the toothpick (5) may be easily displaced or eventually fall out due to an eccentricity of the fishing line (4), a matching operation, or the like.

[0008] And, the above-mentioned various problems are actually fair 3-1319.
The same can be said for No. 0. That is, in the case of this known device, the weight body (1) has a C-shaped cross-section with the attachment / detachment groove (3), so that the weight can be attached to the elastic tube (5) in the radial direction. It is impossible to attach (5) itself to the fishing line (7) from the radial direction, and it must also be inserted into the fishing line (7).

Furthermore, since the fishing line (7) and the elastic tube (5) are in a floating state with each other, the weight can be fixed to the fishing line (7) unless a separate padding is inserted between them. However, there is a risk that the padding may be displaced or fall out.

In this respect, according to the structure of Japanese Utility Model Publication No. 49-35914, the toothpick (5) and the filling are not used.
Although there is an advantage that the weight can be fixed to the fishing line (9), the fishing line (9) is in direct contact with the weight body (1) such as lead,
Moreover, since it is forcibly pushed and bent by the enlarged portion (8) of the elastic core body (5) while being locked in the recess (4) of the weight body (1), it can be repeatedly used. There is a risk of scratching, leading to a decrease in the durability of the fishing line (9).

The weight body (1) is inserted into the fishing line (9) from the cut (3) first, and the fishing line (9) is inserted into the weight body (1).
The elastic core body (5) from the cut (3) to be pressed against
Press-fitting the columnar part (6) of the elastic core (5)
This is a difficult task in practice due to the small volume reduction of the weight body (1), and the weight body (1) is likely to be displaced along the fishing line (9) during the work.

When the fishing line (9) is pressed against the central hole (2) of the weight body (1) by the repulsive force of the elastic core body (5),
The stronger the repulsive force, the more difficult the press-fitting work from the cut (3) becomes. On the contrary, the easier the press-fitting work is, the weaker the repulsive force becomes, and the fishing line (9) follows. This will result in misalignment.

[0013]

DISCLOSURE OF THE INVENTION The present invention intends to radically solve such a problem, and therefore, as a structure of a fishing weight, a C-shaped cross section provided with a split groove for attaching to a fishing line is provided. The weight body of the mold and an elastic rod which is also expandable and contractable and has an outer diameter larger than the inner diameter of the weight body. The elastic rod is a hollow body of the weight body. So that the split grooves can communicate with each other inside,
In addition, it is characterized by being integrated and integrated under the elastic pressure state in which the restoring expansion force accompanying the forced contraction deformation of its outer diameter is accumulated,

As a method of manufacturing the above-mentioned weight, a constant-weight body having a C-shaped cross section provided with a dividing groove for attaching to a fishing line and an expandable and contractable columnar dividing groove for attaching to a fishing line are also provided. In addition, a long elastic rod having an outer diameter larger than the inner diameter of the weight body is prepared, one end of the elastic rod is first fixed, and the other end is stretched by a yarn to Keep the rod in the outer diameter forcibly expanded and contracted, then sequentially insert a plurality of weight bodies into the thread from the radial direction and engage them, and use the thread as a slide guide rail to the elastic rod in a continuous string state. In addition, the split grooves are inserted so as to be in communicative communication with each other, and then attached, and thereafter, the stretching force of the elastic rod by the yarn is released, and the elastic rod is cut between adjacent ones of the weight main bodies. It is what

[0015]

According to the configuration of the fishing weight according to the present invention,
Since the split groove of the C-shaped cross-section weight body and the split groove of the elastic rod are kept in communication with each other, they can be freely attached to the fishing line in the radial direction and quickly attached and used.
Remarkably convenient.

Further, the elastic rod is expandable and contractable, and is incorporated in the hollow inside of the weight main body under the elastic pressure state in which the restoring expansion force due to the forced contraction deformation of the outer diameter is accumulated. Therefore, the restoring expansion force acts as an even pressure-bonding fixing force of the elastic rod to the inner peripheral surface of the weight body, and as a result, there is no possibility of detachment from the weight body.

In this case, the split grooves preliminarily arranged in a row on the elastic rod are in a sealed state, but since the split grooves themselves have literal elasticity, they can be attached to the fishing line without any trouble, and in that attached state. Some fishing lines do not come into direct contact with the weight body, so there is no risk of scratching.

Particularly, the restoring expansion force of the elastic rod accumulated inside the hollow body of the weight body not only acts as a pressure fixing force for the weight body, but also as an elastic pressure fixing force for holding the fishing line. There is no risk of slipping along the fishing line, even falling off.

Nevertheless, it is possible to remove the fishing line from the fishing line by applying an artificial operation, and as a result, it is possible to freely change the mounting position on the fishing line, and the economy is such that it can be used repeatedly. There is also a nature.

On the other hand, according to the method for manufacturing the fishing weight described above,
An elastic rod with an outer diameter larger than the inner diameter of the body of the weight can be stretched with a thread to keep it in a forcibly contracted state of the outer diameter, and the thread continues to serve as a guide rail.
It is possible to efficiently insert a plurality of weight main bodies in a continuous state into the elastic rod connected to this and to attach them, and as a result, the workability of assembling the elastic rod into the weight main body is remarkably excellent.

Then, when the stretching force by the yarn is released thereafter, the length of the elastic rod is restored and shortened, and the expansion force in the radial direction acts as a pressure fixing force for the inner peripheral surface of the weight main body. Since the weight body and the elastic rod can be firmly assembled, the elastic rod can be cut at the end, and the desired mass production effect of the weight can be maximized.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail below with reference to the drawings. FIGS. 1 to 6 show a fishing weight and its disassembled state according to the present invention, and (A) is a constant length (L1). , Inner diameter (S
1) and a weight body having a C-shaped cross section having an outer diameter (D1), and a stainless steel pipe (SUS3) provided with a split groove (11) for attachment to a fishing line (10) along the longitudinal direction thereof.
04).

Therefore, although there is an advantage that it does not rust even when used in seawater, as long as it has a strength that can withstand the expansion force of the elastic rod described later and a relatively large mass, it can be used as an alternative to the above-mentioned stainless steel. It does not matter if the C-shaped cross-section is formed from copper, brass, or other metal material. In addition, in order to improve safety in handling and use, it is desirable to give roundness as shown in FIGS. 1 and 6 to both corners of the weight body (A).

On the other hand, (B) is a stretchable elastic rod having an outer diameter (D2) larger than the inner diameter (S1) of the weight body (A), and is made of natural rubber or the like into a round rod shape. Although it can be used, synthetic rubber rich in elasticity, weather resistance, and impact resilience, ethylene hardness of about 60 degrees (EPDM) (Product name-Sumitomo Chemical's "Loyalen" and product name-Mitsui It is preferably made in the shape of a round bar from petrochemical "EPT" or the like.

(12) is a split groove (1) of the weight body (A).
Similar to 1), it is a split groove for allowing the elastic rod (B) to be attached to the fishing line (10) from the radial direction, and as apparent from the enlarged view of FIG. 4, the circular shape of the elastic rod (B). A certain depth (G) slightly beyond the center is provided along the longitudinal direction.

The so-called split groove (1
By adding 2), the fishing line (10) can be stably positioned at the center of the elastic rod (B) regardless of the change in the thickness of the fishing line (10) as suggested in FIGS. Is there.

Moreover, the split groove (12) of the elastic rod (B).
Goes from the back (12a) to the lip (12b),
The opening is gradually widened and its lip (1
2b) is also expanded into a trapper shape from a pair of arcuate convex curved surfaces facing each other.

As a result, the fishing line (10) can be smoothly received from the lip portion (12b), and the lip portion (12b) can exert a larger elastic force than the back portion (12a). ing.

Then, as shown in FIGS. 5 and 6, the elastic rod (B) accumulates a restoring expansion force in the hollow inside of the weight body (A) due to the forced contraction deformation of its outer diameter (D2). It is integrated under the oppressed condition. In that case, the split groove (11) of the weight main body (A) and the split groove (12) of the elastic rod (B) are in a state of mutual mating communication, which allows the fishing line (10) from the radial direction. It can be freely attached or detached.

By the way, comparing the numerical relationship between the weight main body (A) embodied from the above-mentioned "SUS304" stainless steel pipe and the elastic rod (B) made from the above-mentioned trade name "FPT", Table 1 Is as illustrated.

[0031]

[Table 1]

As suggested from Table 1, the elastic rod (B)
The cross-sectional area of is set to a numerical value range of about 2 to 3 times the cross-sectional area of the hollow inside of the weight body (A), and as a fishing weight used for a thin fishing line (10), its magnification is For large and thick fishing line (10),
Conversely, if you want to reduce the magnification to a smaller size, you can use the fishing line (1
It can be said that it is practically effective in that it can always exert a constant holding elastic pressure against 0).

An elastic rod (B) having an outer diameter (D2) larger than the inner diameter (S1) of the weight body (A) is attached to the weight body (A).
In order to incorporate and integrate it into the hollow interior of the above, the following work may be performed.

That is, FIG. 7 (a) relates to a long elastic rod (B) having a fixed outer diameter (D2) in a static state.
First, one end portion in the longitudinal direction is fixed by a vise (not shown) or the like, and a non-stretchable tough yarn (13) is connected to the remaining other end, and the elastic rod is formed by the yarn (13). (B)
7A to 7B, the outer diameter (D2) of the elastic rod (B) is made smaller than the inner diameter (S1) of the weight body (A), and the elastic body (A) is forcibly contracted. Keep it up.

Then, the split groove (1) of the weight body (A) is next.
While utilizing 1), a plurality of weight bodies (A) are shown in FIG.
As shown in (c), the yarn (13) is sequentially inserted and engaged from the radial direction, and the yarn (13) is used as a slide guide rail to the elastic rod (B) linked to this. The weight main body (A) is inserted and attached in a continuous state as shown in FIG.

At this time, the split grooves (11) provided to each weight body (A) and the split grooves (1 provided in a row on the elastic rod (B).
2) and keep in mutual agreement and communication. This means that the weight body (A) can be freely and correctly positioned with respect to the contracted elastic rod (B) having the outer diameter (D2).

Then, the stretching force of the elastic rod (B) by the yarn (13) is released. Then,
As suggested by the comparison between (d) and FIG. 7 (e), the length of the elastic rod (B) is restored and shortened to its outer diameter (D2).
Expands in a restoring manner, so the expansion force of each weight body (A)
The elastic rod (B) is automatically incorporated into and integrated with the plurality of weight bodies (A) all at once by acting as a pressure fixing force for the inner peripheral surface of the.

In the assembled state, there is no risk of displacement of each weight body (A) along the longitudinal direction of the elastic rod (B), and finally, the elastic rod (B) is attached to the weight body (A). Cut between adjacent parts, and
That is, a large number of fishing weights intended for such purposes are taken.

In the fishing weight of the present invention manufactured as described above, as apparent from the enlarged views of FIGS. 5 and 6, the elastic rod (B) incorporated in the hollow inside of the weight body (A) is Since there is a normal state in which a restoring expansive force associated with the forced contraction of the outer diameter (D2) is accumulated, there is no risk of the two separating relatively.

However, as is clear from FIG. 7 (F) and FIGS. 8 to 10 showing its enlarged state, the cut length (L2) of the elastic rod (B) is changed to the length of the weight main body (A) ( It is preferable to make the size longer than L1) and to expose both ends of the elastic rod (B) from both ends of the weight body (A) by a constant length (L3) of several millimeters in the assembled state.

Then, when the stretching force of the elastic rod (B) is released, both exposed end portions of the elastic rod (B) have the original outer diameter (D
The weight body (A) remains as an expansion static state while keeping 2), and both ends of the constant length (L3) are attracted and locked to both ends of the weight body (A) as the weight body (A).
This is because a more effective retaining function between the elastic rod (B) and the elastic rod (B) can be exhibited.

In any case, when the elastic rod (B) is assembled in the hollow inside of the weight body (A), the split grooves (12) preliminarily arranged in the elastic rod (B) are Figure 5,
As a result, it is hermetically sealed as 8, 10. However, the lip itself (12b) of the dividing groove (12) is expanded into a trapezoidal shape, and the dividing groove (12) and the dividing groove of the weight main body (A) have literal elasticity. Since it is in a state of mating communication with (11), it can be freely attached to the fishing line (10) in the radial direction as shown in FIGS.

Since the restoring expansion force of the elastic rod (B) also acts as an elastic fixing force for holding the fishing line (10), the elastic rod (B) can be mounted quickly in a so-called one-touch operation type, but is stable and firm. The fishing line (10) can be detached from the fishing line (10) by forcibly applying an artificial operation.

In that case, if there is a fear of leaving,
When the elastic rod (B) and the weight body (A) are twisted relative to each other during use, the split grooves (11) and (12) are displaced by a certain angle (θ) as shown in FIG. , That worry can be eliminated.

Further, as is clear from the values in Table 1, the weight of the fishing weight can be easily adjusted by selecting the length (L1) of the weight body (A), the outer diameter (D1), the material and the like.・ It goes without saying that it can be changed.

[0046]

As described above, the fishing weight of the present invention is the same as the fishing line (10) having the C-shaped cross section main body (A) provided with the dividing groove (11) for attachment to the fishing line (10). ). The outer diameter (D) is larger than the inner diameter (S1) of the weight main body (A), which is expandable and contractable in which the dividing grooves (12) for attachment to () are arranged.
2) and an elastic rod (B) having the elastic rod (B), and the elastic rod (B) is inserted into the hollow inside of the weight main body (A) and the split groove (11).
(12) In order for the comrades to communicate with each other and to have an outer diameter (D
Since the restoration expansion force due to the forced contraction and deformation of 2) is built in and integrated under the elastic pressure state in which it is accumulated, there is an effect that the problems of the prior art described at the beginning can be completely improved.

That is, according to the above configuration of the present invention, the cross section C
An elastic rod (B) having an outer diameter (D2) larger than an inner diameter (S1) of the weight main body (A) is provided inside the hollow inside of the character-shaped weight main body (A). The elastic rod (B) expands against the inner peripheral surface of the weight main body (A) because the elastic rod (B) is integrated and integrated under an elastic state in which a restoring expansion force associated with the forcible contraction deformation is accumulated. It acts as an even pressure-bonding fixing force, and there is no fear that it will be accidentally detached in its assembled state.

Further, the dividing groove (12) of the elastic rod (B) which is incorporated and integrated in the hollow inside of the weight body (A) is kept in a closed state, but the dividing groove (of the weight body (A) ( 11) It is in communication with and the elastic rod (B) itself has literal elasticity, so it can be freely attached to the fishing line (10) from the radial direction or manually removed, and repeated as many times as necessary. It can be used, and the harmfulness to the human body that bites the lead weight as in the past, the environmental problem of discarding the weight together with the tackle, the workability of resetting the tackle again, etc. can be improved drastically.

Furthermore, the restoring expansion force of the elastic rod (B) acts not only as a pressure fixing force for the weight body (A) but also as an elastic pressure fixing force for holding the fishing line (10). There is no risk of slipping along the fishing line (10) or even falling out of the fishing line (10), nor is it necessary to insert and use the previously mentioned known toothpicks or other fillings.

Moreover, the fishing line (10) is held only by the elastic force fixing force of the elastic rod (B) and does not come into direct contact with the weight main body (A) and is kept in a natural straight line. Of course, it is not cut off by
The fishing line (10) has no risk of scratches.
The durability of can be improved.

In particular, if the configuration of claim 2 is adopted,
Since both ends of the elastic rod (B) work as stoppers (14) for preventing the weight body (A) from coming off, the stability of the assembled state can be further enhanced.

If the structure of claim 3 is adopted, since the weight body (A) is made of a stainless steel pipe having a C-shaped cross section, it does not rust even when used in seawater, and its durability can be improved. Depending on how the length (L1) and the outer diameter (D1) are selected, there is also an effect that it is possible to readily respond to various changing sizes and weights of the fishing weight.

If the construction of claim 4 is adopted, the elastic rod (B) with respect to the weight body (A) is selected by appropriately selecting the ratio of the cross-sectional areas according to the change in the thickness of the fishing line (10). The built-in state of can be always kept uniform.

If the structure of claim 5 is adopted, even if the split groove (12) of the elastic rod (B) is in a sealed state, the lip (12b) to the back (12a) of the elastic rod (B) expands into a trapezoidal shape. What,
The fishing line (10) can be received as comfortably as possible,
In addition, the deeply provided split groove (12) allows the fishing line (1
Despite the thickness change of 0), there is an effect that it can be always held in a stable holding state at the center position.

According to the manufacturing method of the sixth aspect, the outer diameter (D) larger than the inner diameter (S1) of the preload body (A).
The elastic rod (B) of 2) can be extremely easily incorporated into the hollow inside of the weight body (A) by using the common thread (13), and a plurality of the fishing weights can be assembled at once. There is an effect that can be mass-produced.

If the construction of claim 7 is adopted, the cut length (L2) of the elastic rod (B) is simply set long in relation to the length (L1) of the weight body (A). The mass for fishing having the above-mentioned structure can be mass-produced extremely easily.

[Brief description of drawings]

FIG. 1 is an oblique view showing an extracted weight body of the present invention.

FIG. 2 is an enlarged sectional view taken along line 2-2 in FIG.

FIG. 3 is a perspective view showing an elastic rod extracted.

4 is an enlarged cross-sectional view taken along line 4-4 of FIG.

FIG. 5 is a plan view showing an assembled state of the weight body and the elastic rod.

6 is a sectional view taken along line 6-6 of FIG.

FIG. 7 is an explanatory diagram showing a process of assembling the weight body and the elastic rod.

FIG. 8 is a plan view showing a modified embodiment of the present invention corresponding to FIG.

9 is a sectional view taken along line 9-9 of FIG.

10 is a sectional view taken along the line 10-10 of FIG.

FIG. 11 is a front view showing a state where the fishing line is attached and used.

12 is an enlarged cross-sectional view taken along line 12-12 of FIG.

13 is a sectional view taken along line 13-13 of FIG.

FIG. 14 is an enlarged cross-sectional view showing another mounting and use state corresponding to FIG.

[Explanation of symbols]

 (10) -Fishing line (11) -Split groove (12) -Split groove (12a) -Deep part (12b) -Lip part (13) -Line (14) -Prevention stopper (A) -Weight body (B) ) ・ Elastic rod (G) ・ Depth (D1) ・ Outer diameter (D2) ・ Outer diameter (L1) ・ Length (L2) ・ Length (L3) ・ Length (S1) ・ Inner diameter

Claims (7)

[Claims] 1. A split groove (11) for attachment to a fishing line (10).
And a weight body (A) having a C-shaped cross section and a split groove (12) for mounting the fishing line (10) in a row are extendable and expandable, and the inner diameter (S1) of the weight body (A). ) And an elastic rod (B) having an outer diameter (D2) larger than that of (1), the elastic rod (B) is inserted into the hollow inside of the weight body (A) so that the split grooves (11) and (12) are fitted and communicate with each other. In addition, the weight for fishing is characterized in that the outer diameter (D2) is integrated and integrated under the elastic pressure state in which the restoring expansion force due to the forced contraction deformation is accumulated. 2. The length (L2) of the elastic rod (B) is made longer than the length (L1) of the weight main body (A) so that both ends of the weight main body (A) are brought into an expansion static state. The fishing weight according to claim 1, wherein both ends of the elastic rod (B) that is projected and exposed are made to function as retaining stoppers (14). 3. The weight body (A) is a stainless steel pipe having a C-shaped cross section, and the weight is determined by adjusting the length (L1) and outer diameter (D1) of the pipe. The weight for fishing according to claim 1. 4. The elastic rod (B) is a synthetic rubber round rod rich in elasticity, weather resistance, and impact resilience, and its cross-sectional area is about 2 to 2 in comparison with the cross-sectional area of the hollow main body (A). The weight for fishing according to claim 1, wherein the weight is set to be tripled. 5. An elastic rod (B) for attaching to a fishing line (10) is provided with a split groove (12) at a constant depth (G) beyond the circular center of the elastic rod (B). The weight for fishing according to claim 1, characterized in that the lip portion (12b) is shaped into a lappa type that gradually expands. 6. A split groove (11) for attachment to a fishing line (10).
Of the weight body (A) having a C-shaped cross section and a split groove (12) for attaching to the fishing line (10), which are extendable and extendable. A long elastic rod (B) having an outer diameter (D2) larger than the inner diameter (S1) is prepared, and one end of the elastic rod (B) is first fixed, and the other end is threaded. The elastic rod (B) is stretched by (13).
Is kept in a forced contracted state of the outer diameter (D2), and then a plurality of the weight main bodies (A) are sequentially inserted into the yarn (13) from the radial direction and engaged, and the yarn (13) is slid. Using the guide rail as a guide rail, the elastic rod (B) is inserted into and attached to the elastic rod (B) so that the split grooves (11) and (12) are in communicative communication with each other. A method for manufacturing a fishing weight, characterized in that the stretching force of (B) is released, and the elastic rod (B) is cut between adjacent weight main bodies (A). 7. The fishing rod according to claim 6, wherein when the elastic rod (B) is cut, both ends thereof are projected and exposed from both ends of the weight body (A) by a predetermined length (L3). Weight manufacturing method.