JP3075078U - Seafood collection tool claw - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To provide a claws of a fish and shellfish collecting tool that adapts to the unevenness of the seabed, rakes shellfish with high collection efficiency, and does not break. SOLUTION: In a claw of a seafood collecting tool in which a toe cover 17 is attached to a distal end portion 12 of an elastic metal wire 6 whose side shape is bent into an S-shape, the elastic metal wire 6 is subjected to shot peening. .

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a claw of a fish and shellfish collecting tool for collecting scallops and the like.

[0002]

[Prior art]

 As a tool for catching scallops, etc., living about 3 cm below the seabed, a large rake-shaped fishing gear called Yatsuku has been used for a long time. The scallops are used to pick up scallops, etc., and are collected in various sizes and shapes.

FIG. 5 is a perspective view showing an example of such a conventionally used fish and shellfish collecting tool, in which a large number of claws 2 having a fixed length toward the sea bottom are provided at the rear part of the shaku1. It is fixed in a line, and the front end of the claw 2 scratches the seabed by sampling the sword 1 forward as indicated by the arrow, and collects scallops and the like.

FIG. 6 is a perspective view showing another example of a conventional fish and shellfish collecting tool, in which a large number of claws 2 having a fixed length toward the sea bottom are fixed in two rows at a rear portion of the eight shaku1. As shown in FIG. 5, the front end of the claw 2 scratches the sea bottom by collecting the scallop and the like by dragging the octal shaft 1 forward as shown by the arrow.

FIG. 7 is a perspective view showing still another example of the conventional fish and shellfish collecting tool, in which a large number of claw members 3 each having a toe bent toward the sea bottom are provided at the rear portion of the eight shaku1. The chain is attached side by side with a chain, and when the shochu 1 is dragged forward as shown by the arrow, the claw member 3 is used to collect scallops by scratching the seabed while conforming to the unevenness of the seabed. is there.

FIG. 8 is a perspective view showing still another example of the conventional fish and shellfish collecting tool, in which a loop 4 is formed in the rear part of the shaku 1 near the base of the elastic metal wire, and the tip part is formed. A large number of claws 5 bent in an L-shape are mounted side by side toward the seabed. When the octal 1 is dragged forward as shown by the arrow, the loop 4 is bent, and the claws 5 Scallops are collected by scratching the sea floor while adapting to irregularities.

[0007]

[Problems to be solved by the invention]

 5 and 6, since the claw 2 is fixed to the octagon 1, when the seabed has a concave and convex, the tip of the claw 2 does not reach the concave and the scallops and the like are removed. There was a problem that the shellfish could not be agitated and the shellfish in the concave part on the seabed was left behind, resulting in poor collection efficiency.

The claw member 3 of the fish and shellfish collecting tool shown in FIG. 7 is adapted to adapt to the unevenness of the seabed. If the drag speed of the eight shaku 1 is high, the claw member 3 cannot adapt to the unevenness of the seabed, and the concave part passes through while floating, so that it is necessary to slowly drag the eight shaku 1 over time. There was a problem with poor collection efficiency.

The fish and shellfish collecting tool shown in FIG. 8 can drag the shaku 1 at a high speed of about 1 m per second and has a high collection efficiency. However, the tip of the claw 5 bent in an L shape has a stone or the like. This impact force repeatedly acts as an impact load on the tip of the nail 5 bent in an L-shape without being dispersed to the loop 4, and the tip of the nail 5 is subjected to metal fatigue. There was a problem that it caused breakage and caused the collection efficiency to deteriorate.

An object of the present invention is to solve such a conventional problem and to provide a claw of a seafood collecting tool that adapts to the unevenness of the seabed, raises a shell at a high collecting efficiency, and does not break. is there.

[0011]

[Means for Solving the Problems]

 According to the invention of claim 1, in the claws of a fish and shellfish collecting tool having a toe cover attached to the tip of an elastic metal wire whose side shape is bent into an S-shape, the elastic metal wire is subjected to shot peening. This is related to the claws of a fish and shellfish collecting tool. Since the elastic metal wire has been subjected to shot peening, the elastic metal wire is prevented from being broken and can withstand long-term use.

According to a second aspect of the present invention, a coating process is applied to the elastic metal wire in a claw of a fish and shellfish collecting tool in which a toe cover is attached to a tip end of an elastic metal wire whose side shape is bent into an S shape. This is related to the claws of fish and shellfish collection tools, and the coating is applied to the elastic metal wire, preventing breakage due to corrosion and enduring long-term use.

According to a third aspect of the present invention, there is provided a claw of a fish and shellfish collecting tool in which a toe cover is attached to a distal end portion of an elastic metal wire whose side shape is bent into an S shape, wherein the elastic metal wire is covered with a polymer film. This is related to the claws of fish and shellfish collecting tools, which are characterized by being covered. Since the elastic metal wire is covered with a polymer film, breakage due to corrosion is prevented, and it can withstand long-term use.

According to a fourth aspect of the present invention, there is provided a claw of a seafood collecting tool in which a toe cover is attached to a distal end of an elastic metal wire whose side shape is bent into an S-shape. This is related to the claws of fish and shellfish collecting tools, which are characterized by having a spring attached.The leaf spring is attached to the base end of the elastic metal wire where stress is concentrated most, so the leaf spring is attached. It suppresses bending of the elastic metal wire to reduce stress concentration, prevents breakage of the elastic metal wire, and withstands long-term use.

[0015]

[Embodiment of the invention]

 Hereinafter, an embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a side view showing an example of an embodiment of the present invention, in which a base end 7 of an elastic metal wire 6 is straight, and a rightmost end of the base end 7 in FIG. The fixing device 8 is fixed here.

The left side of the base end portion 7 in FIG. 1 continues to a linear distal end portion 12 through a downward bent portion 9, an upward bent portion 10, and a downward bent portion 11, and the side shape of the elastic metal wire 6 is substantially The base portion 7 and the tip portion 12 which are bent in an S-shape and are linear have a relative position of approximately 90 degrees.

When the elastic metal wire 6 is bent into an S-shape, it is cold-bent, tempered at 370 ° C., and then subjected to shot peening of a steel ball on the entire surface of the elastic metal wire 6. As a result, a compressive residual stress is generated on the surface of the elastic metal wire 6, and the stress when the elastic metal wire 6 is bent is reduced.

The fixture 8 fixed to the end of the base end 7 has a semi-circular grip 14 that opens and closes about the pin 13 as a rotation center. When it is rotated counterclockwise to the center and locked so as not to be opened by the lock fitting 15 in the closed state as shown in FIG. 1, an annular gripping space 16 is formed in the fixing tool 8. ing.

The lowermost end of the distal end portion 12 of the elastic metal wire 6 in FIG. 1 is bent obliquely forward, and a toe cover 17 is attached thereto. The toe cover 17 is attached to the distal end portion 12 of the elastic metal wire 6 by holding the holding portions 18, which are separated into two forks at the upper portion of the toe cover 17, on both sides of the lowermost end of the elastic metal wire 6 and piercing the holding portion 18. By firmly inserting the pin 19 into the hole provided, the toe cover 17 is fixed to the distal end portion 12 of the elastic metal wire 6.

FIG. 3 is a side view showing a use state of the present invention, and FIG. 4 is a plan view of FIG. Is fixed. Then, the gripper 14 of the fixture 8 described with reference to FIG. 1 is opened, the claw mounting rod 21 is inserted into the gripping space 16, the gripper 14 is closed, and the gripper 14 is held by the lock fitting 15. 8 and the base end 7 of the elastic metal wire 6 can be fixed to the hook mounting rod 21 of eight shaku. At this time, as shown in FIG. 3, when the base end 7 of the elastic metal wire 6 is fixed so as to be in a substantially horizontal posture, the portion extending from the distal end 12 of the elastic metal wire 6 to the toe cover 17 is substantially vertical. With the posture, the toe cover 17 pierces the seabed 22 at a predetermined depth of about 10 cm.

In the state of FIG. 3, when the shochu 1 is dragged forward as indicated by an arrow, the elastic metal wire 6 bends, and the toe cover 17 draws the seabed while conforming to the unevenness of the seabed 22. Scratches and collects scallops. As described above, since the elastic metal wire 6 is subjected to the shot peening process, the elastic metal wire 6 does not cause metal fatigue even when a foreign substance such as a stone repeatedly hits the toe cover 17 in an impact manner. It can withstand long-term use without breaking.

As another example of the present invention, the elastic metal wire 6 is bent and formed by heat treatment in an S-shape similar to that shown in FIG. 1, and then the elastic metal wire 6 is subjected to electrostatic coating at 170 ° C. Bake. Thereby, the elastic metal wire 6 is protected by the coating film, and can be used for a long time without breakage due to corrosion.

As still another example of the present invention, the elastic metal wire 6 is bent and formed by heat treatment in the same S-shape as in FIG. 1, and then the elastic metal wire 6 is covered with a polymer film. As a result, the elastic metal wire 6 is protected by the polymer film, and is not damaged by corrosion and can withstand long-term use.

FIG. 2 is a side view showing another example of the embodiment of the present invention, and the same parts as those in FIG. 1 are denoted by the same reference numerals. In the embodiment shown in FIG. 2, a plurality of leaf springs 23 having different lengths are attached above the base end 7 of the elastic metal wire 6 bent in an S-shape, and the elastic metal wire 6 is fixed by the fixture 8. The leaf spring 23 is fixed along the proximal end 7 by tightening the proximal end 7 of the base 6 and the plurality of leaf springs 23 together.

When the toe cover 17 scratches the seabed to collect scallop, etc., the portion of the base end portion 7 of the elastic metal wire 6 distant from the fixing tool 8 is bent upward to concentrate the stress most. However, the leaf spring 23 suppresses the bending of the base end portion 7 to relieve stress concentration, prevents the elastic metal wire 6 from being broken, and withstands long-term use. The inventions of claims 1 to 4 can be implemented in combination.

[0026]

[Effect of the invention]

 According to the first aspect of the present invention, since the elastic metal wire is subjected to the shot peening treatment, the elastic metal wire is prevented from being broken and has an effect of withstanding long-term use.

According to the second aspect of the present invention, since the elastic metal wire is coated with a coating, it is possible to prevent breakage due to corrosion and to endure long-term use.

According to the third aspect of the present invention, since the elastic metal wire is covered with the polymer film, there is an effect of preventing breakage due to corrosion and enduring long-term use.

The invention of claim 4 has an effect that the leaf spring suppresses bending of the base end portion of the elastic metal wire to reduce stress concentration, prevents breakage of the elastic metal wire, and withstands long-term use. .

[Brief description of the drawings]

FIG. 1 is a side view showing an example of an embodiment of the present invention.

FIG. 2 is a side view showing another example of the embodiment of the present invention.

FIG. 3 is a side view showing a use state of the present invention.

FIG. 4 is a plan view of FIG. 3;

FIG. 5 is a perspective view showing an example of a conventional fish and shellfish collecting tool.

FIG. 6 is a perspective view showing another example of a conventional fish and shellfish collecting tool.

FIG. 7 is a perspective view showing still another example of the conventional fish and shellfish collecting tool.

FIG. 8 is a perspective view showing still another example of a conventional fish and shellfish collecting tool.

[Explanation of symbols]

 6 Elastic metal wire 12 Tip 17 Toe cover 23 Leaf spring

Claims (4)

[Utility model registration claims] 1. A claw of a seafood collecting tool having a toe cover attached to a tip of an elastic metal wire whose side shape is bent into an S-shape, wherein the elastic metal wire is subjected to shot peening. The claws of the seafood collection tool. 2. A claw of a seafood collecting tool having a toe cover attached to a tip of an elastic metal wire whose side shape is bent into an S-shape, wherein the elastic metal wire is coated with a coating. Claw of a seafood collecting tool. 3. The claws of a fish and shellfish collecting tool in which a toe cover is attached to a tip end of an elastic metal wire whose side shape is bent into an S-shape, wherein the elastic metal wire is covered with a polymer film. The claws of the seafood collection tool. 4. A claw of a seafood collecting tool having a toe cover attached to a distal end of an elastic metal wire whose side shape is bent into an S shape, wherein a leaf spring is attached to a base end of the elastic metal wire. Claw of a fish and shellfish collecting tool.