JP3034494U - Key rod - Google Patents

Abstract

(57) 【Abstract】 PROBLEM TO BE SOLVED: To provide a key rod which prevents the hook portion from falling off due to a piece of meat. SOLUTION: A rod main body 1 is formed by forming an anti-slip layer 3 which is processed by using an epoxy resin on the peripheral surface of a cylindrical body made of FRP so that the surface becomes uneven. A hook tip 5 having a cylindrical fitting portion 6 and a hook portion 7 is attached to one end of the rod body 1. The fitting portion 6 is externally fitted and fixed to the rod body 1.
The base end of the hook portion 7 is welded to the tip of the fitting portion 6.
The hook portion 7 has an opening angle of about 60 ° from the rod body 1 and is cold-bent so that the hook portion 7 has a substantially V shape as a whole, and the tip of the hook portion 7 has a truncated cone shape. An arcuate stop portion 9 is welded to the peripheral surface of the hook portion 7 in the vicinity of the base end, which is an extension of a line following the inside of the bent portion of the hook portion 7, and the stop portion 9 has a rod. The length is a little shorter than the body 1, and one end of the wire rope 10 is locked.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a key rod used for lifting relatively large aquatic organisms such as tuna and sharks from water.

[0002]

[Prior art]

 In floating longline fishing, several branch ropes are hung at regular intervals on a trunk of several hundred meters, and the fishing hook attached to the tip of each branch rope is baited before dropping the trunk rope and branch rope into the sea. After the trunk and branch ropes have been exposed to the surface for a day or two with multiple buoys connected to the trunk rope, the trunk is wound up by a winch and the fish hooked on the hook attached to the branch rope is pulled onto the ship. I am raising. When tuna is caught by this floating longline fishing, the fish is large with a body length of about 3 m and a body weight of about 350 kg. The tuna are pulled up on the ship using a key rod.

FIG. 4 is a perspective view showing a conventional key rod, and 21 in the figure is a rod body. The rod body 21 is a cylinder made of FRP (Fiberglass Reinforced Plastics), and its dimensions are about 30 mm in diameter and about 3.5 m in length. One end of the rod main body 21 has a slightly smaller diameter than the other parts, and the cylinder 26 is fitted on one end of the rod main body 21, and the rivet 28 is attached to the rod main body 21 through the hole formed in the cylinder 26. The key point 25 is fixed to the rod body 21 by driving. The other end of the hook portion 27, which is curved in a U shape and has one sharp end, is attached to the circumferential surface of the key point 25 in the axial direction of the tubular body 26. One end of a stainless steel wire rope 30 is connected to the other end of the rod body 21 by a joint fitting 29, and the other end of the wire rope 30 is a ring.

In order to pull up the tuna on a ship with such a key rod, a fisherman holds the rod body 21 and hooks the hook portion 27 of the key point 25 on the gills or the mouth of the tuna, and then the ring of the wire rope 30 is pulled. It was connected to another winch provided on the ship, and the winch was used to pull the tuna together with the key rod onto the ship.

[0005]

[Problems to be solved by the device]

 However, in the conventional key rod, the hook portion at the tip of the key is curved in a U shape, so that the hook portion can be hung only on the gills or the mouth of the tuna, and the tuna hung on the hook portion is If there was a runaway, there was a problem that the meat would be cut off and the tuna would come off the hook and escape into the sea. Further, when the key rod and the tuna are hoisted on the ship by the winch, a large load is applied to the rod body, so the rod body must use a strong columnar member. Therefore, there was a problem that the weight of the key rod was large and it was difficult for the fishermen to work for a long time.

The present invention has been made in view of the above circumstances, and an object thereof is to make a key tip substantially V-shaped so as to prevent the hook from falling off due to a meat cut. To provide a pole. Another object is to provide a rope with a small load applied to the rod body by attaching the rope to the tip of the rope and locking the rope with a locking member attached to the rod body. It is in. Still another object is to provide a key rod which allows a fisherman to work for a long time by reducing the weight of the rod body by making the rod body a tubular body made of reinforced plastic.

[0007]

[Means for Solving the Problems]

 The key rod according to the first invention is a key rod in which a key tip is fixed to a tip of a rod-shaped rod body, wherein the key tip extends from the tip of the rod body in the longitudinal direction of the rod body, and the rod body side It is characterized in that it is bent to have a predetermined opening angle.

In the key rod of the first invention, the key tip extends from the tip of the rod main body in the longitudinal direction of the rod main body, and is bent to the rod main body side at a predetermined opening angle to form a substantially V-shape. Because of the shape, the tip of the key point is facing outward, and the tip penetrates deeply into the fish body and prevents meat cutting. In addition to the gills and mouth, the key point can be hung on the eyeball, and there are many points where the key point is hung.

The key rod according to the second invention is a key rod in which a key tip is fixed to a tip of a rod-shaped rod body, and a rope is attached near the key body of the key tip, and the rope and the rod body are attached. A member that restricts the separation of the rod body from the rope is installed between and.

The key rod according to the third invention is a key rod in which a key tip is fixed to a tip of a rod-shaped rod body, wherein the key tip extends from the tip of the rod body in the longitudinal direction of the rod body. A rod is attached to the body of the rod at a predetermined opening angle, and a rope is attached to the extension of the line that follows the inside of the bent portion near the rod body at the key point. A member that restricts the separation of the rod body from the rope is installed between them.

In the key rods of the second and third inventions, the rope attached to the vicinity of the rod body at the key tip is connected to the winch to pull up the aquatic life hung on the key tip. As a result, the rod body is not subjected to the load of aquatic organisms during the pulling up. Also, when the rope is attached to the extension of the line that follows the inside of the bent part near the key body of the key tip, when pulling up the key pole with the winch, the rod body should be set at the position where the key rope is attached. It rotates to the center and the tip of the key bites deeply into the body of aquatic organisms. At this time, a member that restricts the separation of the rod body from the rope is installed between the rope and the rod body, so that the rod body is kept open from the rope at a certain angle. As a result, when the tip of the key bites deeply into the body of the aquatic organism, the rotation of the rod body is stopped, and in that state, the aquatic organism hung on the tip of the key is pulled up.

A key rod according to a fourth aspect of the present invention is the key rod according to the first aspect, wherein the rod body is a reinforced plastic cylinder.

The key rod according to the fifth aspect is characterized in that, in the second aspect, the rod body is a tubular body made of reinforced plastic.

[0016] A key rod according to a sixth aspect of the present invention is the key rod according to the third aspect, wherein the rod main body is a reinforced plastic cylinder.

In the key rods of the fourth, fifth and sixth inventions, since the rod body is a tubular body made of reinforced plastic, the rod is light in weight and a fisherman can work for a long time.

[0016]

[Embodiment of the invention]

 Hereinafter, embodiments of the present invention will be specifically described with reference to the drawings. FIG. 1 is a side view showing a key rod according to the present invention, and FIG. 2 is an enlarged sectional view taken along line II-II of the key rod shown in FIG. The key rod is provided with a rod body 1 and a key point 5, and the dimensions are about 30 mm in diameter of the rod body 1 and about 3 m in total length. The rod body 1 is formed by forming an anti-slip layer 3 that is processed by using epoxy resin on the peripheral surface of a cylindrical body 2 made of FRP so as to have an uneven surface, thereby making the key rod lightweight and working. It is designed to prevent slipping during work.

A hook tip 5 having a cylindrical fitting portion 6 and a hook portion 7 is attached to the tip of the rod body 1. The fitting portion 6 is fitted onto the rod body 1 and fixed to the rod body 1 by rivets 8 (8). The base end of the hook portion 7 is welded to the tip of the fitting portion 6. The hook portion 7 is formed by extending a cylinder having a diameter of about 16 mm from the tip of the rod body 1 in the longitudinal direction of the rod body 1 and cold bending it so that the opening angle from the rod body 1 is about 60 °. The bent portion is curved and is substantially V-shaped as a whole. The dimension from the bent portion to the tip of the hook portion 7 is about 180 mm, and the dimension from the bent portion to the base end of the hook portion 7 is about 350 mm. Further, the portion from the tip of the hook portion 7 to the position on the bent portion side by a predetermined dimension is frustoconical, and the diameter of the upper portion of the frustoconical portion, that is, the tip of the hook portion 7 is about 5 mm. Since the hook portion 7 is substantially V-shaped in this way, when the key tip 5 is hung on the gills of a tuna, for example, the tips of the hook portions 7 pass through the gills into the oral cavity to prevent the meat from being cut. The dimension from the bent portion to the tip of the hook portion 7 is set to an appropriate dimension so as to pass from the gills of the tuna into the oral cavity. Further, in the hook portion 7 shown in FIG. 1, the bent portion is curved, but it goes without saying that the present invention is not limited to this and may be bent at an acute angle.

An arcuate stop portion 9 is welded to the peripheral surface near the base end of the hook portion 7 and on the extension line of the line following the inside of the bent portion of the hook portion 7, and the stop portion 9 is welded. The length of the wire rope 1 is slightly shorter than that of the rod body 1, and one end of a wire rope 10 made of stainless steel is connected by a shackle 12. An annular rope 15 made of nylon fiber is fixed by a stopper 16 to the base end side of the rod body 1 from the longitudinal center so that the rope 15 is on the bent side of the hook portion 7. A link 17 made of stainless steel is attached to the rope 15 in a chain shape. The above-mentioned wire rope 10 is inserted through the link 17, and the wire rope 10 is turned at the other end of the wire rope 10 to form a ring 11 having a diameter larger than that of the link 17.

With such a key rod, for example, when pulling up a tuna, a fisherman holds the rod body 1 by hand and hooks the hook portion 7 on the eyeball portion of the tuna T or the gills as shown in FIG. After passing through, the ring 11 of the wire rope 10 and the hook 40 pulled out from the winch (not shown) are connected, and the wire rope 10 and the tuna T are pulled up from the sea surface to the ship by the winch.

At this time, since the hook portion 7 has a substantially V shape, the meat is prevented from being cut. Further, since the rod body 1 is kept open by the rope 15 from the wire rope 10 which is a substantially vertical direction by about 15 °, the hook portion 7 bites deeply into the body of the tuna T. On the other hand, since the wire rope 10 is connected to the key point 5, the load of the tuna T is applied to the key point 5 and the wire rope 10 and not to the rod body 1. For this reason, as described above, the rod main body 1 has a sufficient strength even if it is made of an FRP cylindrical body to reduce the weight, and the weight reduction allows the fisherman to perform long-time work. Further, since the non-slip layer 3 is formed on the peripheral surface of the rod body 1, the slipping of the hand is prevented during the operation of the fisherman.

[0021]

[Effect of the invention]

 As described above in detail, in the key rod according to the first aspect of the present invention, it is possible to prevent the fish from dropping from the tip of the key due to a piece of meat. Also, the area where the key tip can be hung on the fish increases.

The key rod according to the second and third inventions has a small load applied to the rod body, and the tip of the key bites deeply into the body during pulling, which further prevents the fish from falling off from the key tip. .

The key rods according to the fourth, fifth and sixth aspects of the present invention have excellent effects such that the weight of the rod body can be reduced and a fishing worker can work for a long time.

[Brief description of the drawings]

FIG. 1 is a side view showing a key rod according to the present invention.

FIG. 2 is an enlarged sectional view taken along line II-II of the key rod shown in FIG.

FIG. 3 is an explanatory view illustrating a usage state of the key rod according to the present invention.

FIG. 4 is a perspective view showing a conventional key rod.

[Explanation of symbols]

 1 Rod main body 2 Cylindrical body 3 Non-slip layer 5 Key point 7 Hook part 10 Wire rope 11 Ring 15 Rope

Claims (6)

[Utility model registration claims] 1. A key rod having a key tip fixed to the tip of a rod-shaped rod body, wherein the key tip extends from the tip of the rod body in the longitudinal direction of the rod body and opens to the rod body side with a predetermined opening. Key rod characterized by being bent at an angle. 2. A key rod having a key tip fixed to the tip of a rod-shaped rod body, wherein a rope is attached near the rod body at the key tip, and a rope is provided between the rope and the rod body. A key rod characterized in that a member for restricting the separation of the rod body from the bridge is installed. 3. A key rod having a key tip fixed to the tip of a rod-shaped rod body, wherein the key tip extends from the tip of the rod body in the longitudinal direction of the rod body and opens to the rod body side by a predetermined distance. A rope is attached at an angle, and a rope is attached on the extension line of the line that follows the inside of the bent portion in the vicinity of the rod body at the key tip, and between the rope and the rod body, from the rope The key rod is characterized in that a member for restricting the separation of the rod main body is installed. 4. The key rod according to claim 1, wherein the rod body is a tubular body made of reinforced plastic. 5. The key rod according to claim 2, wherein the rod body is a tubular body made of reinforced plastic. 6. The key rod according to claim 3, wherein the rod body is a tubular body made of reinforced plastic.