Sea urchin splitter

The sea urchin splitting tool addresses the issue of gonad and intestine damage by cutting the outer shell in a circular shape, enhancing product quality and reducing costs by preserving the gonads and allowing the shell to be used as a container.

JP2026031288APending Publication Date: 2026-02-24篠田 静男
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Patent Information

Application Number
JP2024146021
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2024-08-08
Publication Date
2026-02-24

AI Technical Summary

Technical Problem

Existing sea urchin splitting tools often damage the gonads and intestines during the splitting process, leading to reduced commercial value, increased costs, and the need for skilled labor, which hinders commercialization.

Method used

A sea urchin splitting tool that cuts the outer shell in a circular shape around the mouth, allowing the gonads to be extracted without damaging them and the intestines to be removed intact, with the outer shell serving as a container.

Benefits of technology

Preserves the gonads and reduces intestinal waste, improving product quality and reducing labor costs, while enabling the outer shell to be used as a serving dish.

✦ Generated by Eureka AI based on patent content.

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Abstract

To solve the problem that when the outer shell of a sea urchin main body is broken for conventional collection in the collection of the gonad of the sea urchin main body, the gonad is broken by an inserted conventional sea urchin breaker and the intestine connected to the mouth is broken. In addition, the sea urchin shell after collection has to be disposed of as industrial wastes for a fee.SOLUTION: When the gonad of the main body of the sea urchin is collected, the upper surface of the outer shell on the mouth side of the main body of the sea urchin is cut in a circular lid shape together with the mouth by the lowering and swinging operation of the cutting bit, so that the gonad and the internal organs of the main body of the sea urchin can be collected without being broken. Since the outer shell of the sea urchin shell is cut off in a lid shape and is not damaged, the sea urchin shell can be provided as a vessel.SELECTED DRAWING: Figure 4
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Description

[Technical Field]

[0001] To provide a manual sea urchin splitting machine which does not destroy the gonads and internal organs inside the sea urchin shell body, provides the sea urchin shell body as a container, and makes it easy to take out the gonads from the sea urchin shell body. [Background technology]

[0002] Among seafood processing equipment, sea urchin splitting equipment is used to break the outer shell of the sea urchin body after it has been landed from the sea and extract the gonads inside. Practical sea urchin splitting equipment includes one that drives a wedge-shaped blade into the center of the outer shell of the landed sea urchin body and twists it open, and another that drives a two-bladed, wedge-shaped, scissor-like blade into the center of the outer shell of the sea urchin and opens the scissor-like blade inside the body, splitting the sea urchin in two. In addition, a circular cut is made around the opening of the sea urchin shell using scissors or the like and then served.

[0003] However, practical sea urchin splitting tools have the drawback that, because the wedge-shaped sea urchin splitting blade is inserted into the inside of the outer shell of the sea urchin, when splitting the sea urchin in half, one of the five gonads arranged inside the main body of the sea urchin is destroyed. Also, when the wedge-shaped sea urchin splitting blade is driven in, part of the intestines connected to the mouth of the main body of the sea urchin is destroyed. The method of cutting the sea urchin shell in a circle with scissors has the problem that the gonads located at the top of the shell are cut off with the scissors, and this has led to a decrease in the number of skilled workers being considered a problem.

[0004] In the process of extracting the gonads from landed sea urchins using practical sea urchin splitting equipment, this drawback poses a major obstacle to commercialization, resulting in a decrease in commercial value, an increase in commercialization costs, an increase in labor, and the need for skilled workers. Specifically, there are problems such as the generation of waste gonads with little commercial value, the need for highly skilled technicians to extract the gonads from the split sea urchin shells, and the need to remove the intestinal organs that are destroyed and attached to the gonads when the wedge-shaped sea urchin splitting equipment is driven into the sea urchin shell.

[0005] As a solution to this problem, the internal structure of the sea urchin itself shows that the gonads are attached to the inner wall of the reproductive hole, which is located near the anus on the opposite side of the mouth. Also, since the internal organs of the sea urchin are connected to the mouth, there is a method of cutting out the mouth part of the outer shell of the sea urchin in a circular shape of about 3 to 5 cm around the mouth. [Prior art documents] [Patent documents]

[0006] [Patent Document 1] Japanese Patent Application Laid-Open No. 2012-152204 [Patent Document 2] Japanese Utility Model Application Publication No. 06-084878 [Patent Document 3] Publication No. 59-008587 [Non-patent literature]

[0007] [Non-Patent Document 1] Village Blacksmith Sea Urchin Splitter [Non-patent document 2] Firebird Sea Urchin [Non-patent document 3] E-denki Tools Sea Urchin Split [Non-patent document 4] E-denki Tools Uni-kun JAN [Non-patent document 5] Kitchen: Sea urchin slicing craftsman [Non-patent document 6] Firebird Sea Urchin Split T-Shaped [Non-Patent Document 7] Firebird Sea Urchin Slice, Cross Shape Summary of the Invention [Problem to be solved by the invention]

[0008] The problem to be solved is that with practical sea urchin splitting equipment, the gonads are often broken and the intestines damaged when breaking open the sea urchin shells to extract the gonads from the landed sea urchin body; this drawback when extracting the gonads from the sea urchin body is a major obstacle when it comes to commercializing the gonads, resulting in a decrease in commercial value, increased commercialization costs, increased labor, and the need for skilled workers. To provide a sea urchin splitting tool capable of easily extracting the gonads from the outer shell of a sea urchin body without destroying the gonads or the intestines connected from the mouth to the anus. [Means for solving the problem]

[0009] The present invention has the main features that, when the outer shell of a sea urchin is split and the gonads are taken out, the gonads can be easily taken out from inside the sea urchin shell without breaking the gonads or destroying the intestines that connect the mouth to the anus, and that after the gonads are broken, the ovaries are left inside the sea urchin shell and the internal organs are removed, and the sea urchin shell with the upper part broken into a circle can be used as a container. [Effects of the Invention]

[0010] The sea urchin splitting tool of the present invention can break only the outer shell portion of the sea urchin shell near the mouth by using a swinging downward motion of a breaking bit with multiple sharp blades at the tip.Furthermore, by cutting out only the outer shell portion of the sea urchin shell in a circular shape, the gonads are not damaged and the connection between the gonads and the reproductive opening is not severed.Furthermore, since the intestines connected to the mouth are removed along with the circularly cut mouth without being destroyed, the occurrence of collapsed gonads is reduced, and there is less adhesion of intestinal waste to the gonads due to the destruction of the intestines that occupy the inside of the sea urchin body.Furthermore, since only the gonads remain inside the outer shell of the sea urchin after the internal organs are removed, the gonads are easy to remove, which is expected to improve the quality of the gonads as a product and also reduces costs by reducing labor.Another advantage is that the outer shell of the sea urchin body with the circular cut out around the mouth can be used as a serving dish. [Brief explanation of the drawings]

[0011] [Figure 1] This is a diagram of a manual sea urchin splitter. [Figure 2] An explanatory diagram showing the structure of the sea urchin splitter body. [Figure 3] This is an explanatory diagram of the standby state in which the sea urchin splitter cutting bit is positioned at the top and places sea urchin shells on the tray. [Figure 4] FIG. 10 is an explanatory diagram showing the state in which the sea urchin cutter cutting bit has descended and stopped at the cutting position. [Figure 5] FIG. 2 is a diagram showing the structure of a cutting bit. DETAILED DESCRIPTION OF THE INVENTION

[0012] When removing the vegetation nest from the sea urchin body, the objective was to destroy the outer shell of the sea urchin without destroying the gonads of the sea urchin body as much as possible and without destroying the intestines, by cutting out a circle around the mouth with the mouth side of the sea urchin facing up, and separating the mouth and intestines from the sea urchin body together. [Example]

[0013] 3 is a cross-sectional view of one embodiment of the device of the present invention, showing the sea urchin splitter cutting bit 9 elevated and waiting to place the sea urchin shell body 15 on the tray 10. At this time, the lifting nut 3 is fixed by the fixing bolt 4.

[0014] 4 is a cross-sectional view of the sea urchin splitter 1 embodiment of the device of the present invention, in which the sea urchin splitter cutting bit 9 has been lowered until it contacts the top surface of the sea urchin shell, and is in a state of waiting for the start of rotation of the cutting bit 9. At this time, the lifting nut 3 is fixed by the fixing bolt 4 under the action of the spring 12 so that it does not rise.

[0015] By rotating the handle 1 downward from the state shown in FIG. 5, the cutting bit 9 also swings downward together with the rotary shaft bolt 2, and the outer husk of the sea urchin shell is broken and cut away in a circular shape.

[0016] By carrying out the steps from Figure 3 to Figure 4 in succession, the upper surface of the sea urchin shell is cut off in a circular shape, making it easier to remove the vegetation nest, preventing collapse and the occurrence of vegetation nests, reducing the amount of internal organs that have adhered to the vegetation nests due to the destruction of the intestines, and reducing labor.Furthermore, it also makes it possible to use the outer shell of the sea urchin in cooking utensils, thereby contributing to improved convenience. [Industrial Applicability]

[0017] There is no need to adjust the cutting depth, and the effects of the rotating shaft bolt 2 and lifting nut 3 allow the cutting bit to stop in a cracked state, so the depth of penetration of the cutting bit into the sea urchin shell can be controlled shallowly. This means that the outer shell around the mouth can be cut in a consistent circle without destroying the gonads inside the sea urchin body or destroying the intestines, making it easy to remove the gonads during processing of the sea urchin body. The intestines connected to the mouth are removed together with the excised mouth without being destroyed, reducing the effort required to remove the filth from the intestines that adheres to the gonads when commercializing them. Furthermore, the outer shell from which the internal organs have been removed can be used together with the gonads as a serving dish. [Explanation of symbols]

[0019] In Figure 2, 1 is the lifting handle, 2 is the rotating shaft bolt, 3 is the lifting nut, 4 is the fixing bolt, 5 is the sleeve, 6 is the sleeve fixing ring, 7 is the swing arm, 8 is the shaft, 9 is the cutting bit, 10 is the sea urchin shell tray, 11 is the base, 12 is the spring, 13 is the bearing, 14 is the sharp protrusion, 15 is the sea urchin shell, and 16 is the sea urchin splitter body.

Claims

[Claim 1] This sea urchin cracker 16 breaks sea urchin shells into circular lids, and has a cutting bit 9 with sharp protrusions 14 around the part of the cutting bit 9 that comes into contact with the sea urchin shell, and the cutting bit 9 is fixed to a swinging arm 7 via a shaft 8. The swinging arm 7 fixed to the rotary shaft bolt 2 rotates with the rotation of the rotary shaft bolt 2, and the rotary shaft bolt 2 moves up and down by the lifting nut 3 with the forward and reverse movement of the handle 1. The downward movement accompanying the rotation of the rotary shaft bolt 2 causes the cutting bit 9 to swing and rotate, rotating and swinging down around the shaft 8, breaking the sea urchin shell into a circular shape. The lifting range of the cutting bit 9 is within the range of the rotational movement of the rotary shaft bolt 2 and the lifting nut 3, and there is no unnecessary downward movement, so the cutting bit 9 does not penetrate deeper into the sea urchin shell than necessary and does not destroy the ovaries inside the shell. After the sea urchin shells 15 are placed on the sea urchin shell tray 10, the handle 1, the rotary shaft bolt 2, the lifting nut 3, the swing arm 7, the shaft 8, and the cutting bit 9 are lowered as a unit and held down by the cutting bit 9, and the position of the cutting bit is fixed by the fixing nut 4. This sea urchin splitter is characterized in that the fixing bolt 4 is released after the sea urchin shell is broken, and the cutting bit 9 and other components are raised by the action of the spring 12.

Citation Information

Patent Citations

  • JP06‐084878U

  • The split shell of the sea urchin

    JP1984008587U

  • Device for perforating shell of sea urchin

    JP2012152204A