JPH065472U - A meandering motion device for bait fish used for longline fishing - Google Patents

Abstract

(57) [Summary] [Purpose] The purpose is to improve the catch rate in the longline fishing method, shorten the number of operating days, and reduce the burden on seafarers. [Structure] A pointed portion 2 is provided on the upper end of a pressure receiving plate 1 formed in a concave shape.
The angle holding plate 3 is provided on the rear surface of the root portion of the pointed portion 2, and the burrs 4 are provided on the front surface of the upper end portion. When the bait fish 7 attached to the fishing hook 6 provided at the tip of the fishing line 5 thrusts into the water, a strong water pressure acts on the front surface of the pressure receiving plate 1, and the direction in which the bait fish 7 thrusts continuously changes diagonally left or right. Then, the meandering operation is performed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a meandering motion device for forcibly performing a meandering motion on a bait fish attached to a fishing hook provided at the tip of a fishing line used for longline fishing.

[0002]

[Prior art]

 Conventionally, live bait, frozen bait fish used by thawing, or simulated bait is used as bait for longline fishing.

[0003]

[Problems to be solved by the device]

 The above-mentioned live bait is not only fresh but also more natural in movement in the water than other baits, so a high catch rate can be expected, but on the other hand, it is expensive and is kept alive for a long time. However, it is difficult to catch and secure bait fish at the fishing grounds, and there are problems such as waste of time, so it is rarely used at present.

Further, the above-mentioned artificial bait contributes to cost saving, but since a high catch rate cannot be expected, it is only used slightly.

On the other hand, the frozen bait fish that is thawed and used is easy to handle, is low in price as compared with live bait, and can still be expected to have a certain catch rate. This is the situation where frozen bait fish are used.

[0006] The present invention respects the above-mentioned advantages inherent in a frozen prey fish that is thawed and used, and on the premise that this is used, the catch rate when the prey fish is used is dramatically improved. The purpose is to significantly reduce the number of operating days and, in turn, to reduce the burden on seafarers engaged in longline fishing.

[0007]

[Means for Solving the Problems]

 In order to achieve the above object, the meandering motion device of a bait fish according to the present invention has a pointed portion 2 integrally formed on the upper end of a pressure receiving plate 1 formed in a concave shape, and the root rear surface of the pointed portion 2 is provided. The angle holding plate 3 and the burrs 4 are provided on the front surface of the upper end portion.

[0008]

[Action]

 As shown in FIG. 7, the belly fin of the bait fish 7 attached to the hook 6 provided at the tip of the underwater fishing line 5 used in the longline fishing, is provided with the pointed head 2 in the meandering motion device of the bait fish according to the present invention. 9 The pressure receiving plate 1 is pierced at a position closer to the blister head 10 so that the pressure receiving plate 1 is positioned obliquely below the head 10 of the bait fish 7, and the angle holding provided on the rear surface of the root of the pointed head 2 is held. With the plate 3 in contact with the lower surface of the bait fish 7, a trunk line not shown in the drawing is wound up by a hoisting machine equipped on the longline fishing boat, so that the fishing hook 6 provided at the tip of the fishing line 5 is wound. When the attached bait fish 7 pushes through the water, water pressure acts on the front surface of the pressure-receiving plate 1 and the head 10 of the bait fish 7 tends to face downward, which tends to cause the bait fish 7 to move in the water. Since the state is vertical or nearly vertical to the direction of thrust, the front surface of the pressure receiving plate 1 is coupled with the fact that the pressure receiving plate 1 is formed in a concave shape. So that the work is strong water pressure. Further, since the pressure receiving plate 1 is formed in a concave shape, the left and right balance of the water pressure acting on the front surface of the pressure receiving plate 1 is likely to collapse, and once it starts to collapse, it suddenly collapses, so that the direction in which the bait fish 7 advances Continuously changes diagonally to the left or to the right, and a meandering motion is performed.

Since the angle holding plate 3 provided on the rear surface of the root of the pointed portion 2 is in contact with the lower surface of the bait fish 7, even if a strong water pressure acts on the front surface of the pressure receiving plate 1, The angle formed by the lower surface of the head 10 of the bait fish 7 does not increase, and is reliably maintained at a constant angle.

When water pressure acts on the front surface of the pressure receiving plate 1, the cabbage 4 provided on the front surface of the upper end portion of the pointed head 2 that pierces the bait fish 7 bites into the fish meat. Since the biting force becomes stronger as the water pressure acting on the front surface of the pressure receiving plate 1 increases, there is almost no possibility that the pointed head 2 pierced by the bait fish 7 will come off.

[0011]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings.

In the figure, reference numeral 1 denotes a pressure receiving plate formed in a concave shape. For example, when the pressure receiving plate is formed in a substantially circular shape as shown in FIG. 1, only the lower half portion is formed in an arc shape as shown in FIG. In this case, a case of forming into a polygonal shape as shown in FIGS. 4, 5 and 6 can be considered, but in any case, it is not limited to a specific shape. Reference numeral 2 denotes a pointed head integrally projecting from the upper end of the pressure receiving plate 1. An angle holding plate 3 is provided on the rear surface of the root of the pointed head 2, and a burrow 4 is provided on the front surface of the upper end. It is desirable that the angle holding plate 3 is provided on the rear surface of the root portion of the pointed portion 2 so as to project obliquely upward and upward as shown in FIG. In addition, there may be a case where a burrow (not shown in the drawing) different from the burrow 4 is further provided at an arbitrary portion of the pointed portion 2.

In FIG. 7, 5 is an underwater fishing line used for the longline fishing method, 6 is a hook provided at the tip of the fishing line 5, 7 is a thawed fish used for catching large fish such as tuna and marlin. A bait fish (mackerel) is hooked on the hook 6 by piercing the hook 6 near the pectoral fin 8. 9 is the belly fin of the bait fish 7 and 10 is the head of the bait fish 7.

[0014]

[Effect of device]

 INDUSTRIAL APPLICABILITY As described above, the present invention is capable of forcing a bait fish attached to a fishing hook provided at the tip of a fishing line used for longline fishing to perform a meandering motion. The fishing rate will be drastically improved, and the catch rate will increase dramatically.

Further, due to the above-mentioned dramatic improvement in the catch rate, the number of operating days can be significantly shortened, and the burden on the seafarers engaged in longline fishing can be reduced, which is a great contribution to the industry. You can do that.

[Brief description of drawings]

FIG. 1 is a front view showing an embodiment of a meandering motion device for feeding fish according to the present invention.

FIG. 2 is a vertical sectional view of a central portion of the above.

FIG. 3 is a front view showing another embodiment of the above.

FIG. 4 is a front view showing still another embodiment of the above.

FIG. 5 is a front view showing still another embodiment of the same.

FIG. 6 is a front view showing still another embodiment of the above.

FIG. 7 is a front view showing a usage state of the meandering motion device of the bait fish according to the present invention.

[Explanation of symbols]

 1 Pressure receiving plate 2 Pointed head 3 Angle holding plate 4 Caulking

Claims (1)

[Scope of utility model registration request] 1. A long line comprising a pressure receiving plate formed in a concave shape, and a pointed head integrally formed on the upper end of the pressure receiving plate. A meandering motion device for bait fish used for fishing.