JP5793789B2 - Sea urchin splitting device and sea urchin splitting method - Google Patents

Description

  The present invention relates to an apparatus and method for breaking a sea urchin shell, and more specifically, an apparatus and method for dividing a sea urchin into an oral side and an anal side by making a cut from the side in the sea urchin shell. About.

  Sea urchins are distributed as high-grade food ingredients in the gonads. Conventionally, the work of removing the gonad by breaking the sea urchin shell is generally performed manually, but the sea urchin has a hard shell and countless spines, so the gonad is broken by breaking the shell. The operation of taking out only is extremely complicated and laborious. The sea urchin is composed of five parts in the circumferential direction around the line connecting the mouth on the lower surface and the anus on the upper surface, and the gonad, viscera, teeth, etc. are similarly arranged in each of the five parts. Has been. The gonad extends to the back of the oral shell in each of the five parts. In order to collect the gonad, first, a blade or special instrument is inserted into the sea urchin's mouth and twisted to divide the sea urchin shell into two. Sea urchin shells break at any two of the five seams. In the sea urchin shell that has been split into two, gonads and internal organs remain alternately, and undigested food fragments and feces remain. Therefore, the gonads and internal organs are taken out from the shells, and only the gonads are selected while putting them in a dish and exposing them to water.

  As described above, the manual operation from the splitting of the shell to the collection of the gonad is extremely complicated and time-consuming. In addition, when a blade or the like is inserted into the sea urchin's mouth and twisted, the gonad may be destroyed at the shell's split part, etc. May decrease.

The following techniques have been proposed for the purpose of reducing such complicated and time-consuming work and collecting more gonads without damaging them.
Patent Document 1 (Japanese Patent Application Laid-Open No. 2012-152204) proposes a hand-held type instrument that makes a hole in a sea urchin shell. In this device, a plurality of triangular blades are provided around the opening of a cylindrical main body having an opening, and the triangular blade typically makes a round hole in a shell around the mouth. Since the viscera and the like can be taken out from the hole with the gonad remaining in the shell, using this technique, it is said that the gonad can be collected without damaging it.

  Patent Document 2 (Japanese Patent Laid-Open No. 2010-29087) also proposes a sea urchin processing apparatus and method for making a hole in a sea urchin shell and collecting it without damaging the gonad. An apparatus using this technique has a cutting tool for cutting a shell of the fixed sea urchin. With this cutting tool, the shell around the sea urchin's mouth can be cut into a circle, and the boundary between the sea urchin's gonad and mouth can be cut easily and easily, and the gonad is cut. However, after removing the internal organs, the gonad can be peeled off and collected.

  Patent Document 3 (Japanese Patent Laid-Open No. 7-194347) provides a sea urchin processing apparatus and method for exposing a sea urchin's gonad by cutting the sea urchin's mouth side conveyed by a conveyor into a disk shape so as to cross the side surface. To do. It is said that this technique improves the collection efficiency of sea urchin gonads and makes it possible to semi-automate sea urchin processing.

JP2012-152204A JP 2010-29087 A JP-A-7-194347

  Patent Document 1 or Patent Document 2 applies a force to a fixed sea urchin with a blade to make it thin while cutting the shell, and the shell is cut when the blade reaches the inside. There is a possibility that the vicinity of the part is damaged and broken shell fragments enter the gonad. In addition, as in these techniques, the technique of making a round hole in the shell mainly from the mouth side inserts a blade directly into the sea urchin. There is a problem that there is a risk. Sea urchin gonads, which are handled as high-grade foods, must maintain the shape of a half-moon-like tuft, and these techniques do not meet the requirement for harvesting without damaging the gonads.

  In addition, the technique proposed in Patent Document 3 can improve the collection efficiency of the gonad, but when the mouth shell is cut into a disk shape, a part of the gonad that extends to the mouth is obtained. Has a problem that it may be cut at the same time. In such a method, it is impossible to cut the shell at the boundary between the gonad and other parts. Also in this technique, as in the techniques of Patent Document 1 and Patent Document 2, since the blade is inserted while applying force to the fixed sea urchin, the shell breaks and the broken shell fragments enter the gonad. There is.

  In view of these problems, the present invention provides a sea urchin shell that can be easily collected without damaging the sea urchin's gonad or mixing shell fragments during collection. It is an object of the present invention to provide an apparatus and a method for forming a cut from the side and dividing the shell into upper and lower parts.

  In consideration of the internal structure of the sea urchin, the present invention can divide the shell vertically from the side, so that only the gonad can be easily separated without damaging the gonad and preventing foreign matter from entering. It is based on the knowledge that. The sea urchin's gonad is attached to the shell so that it hangs from the genital hole on the anal side for ovulation and fertilization, and the teeth and internal organs are on the mouth side. If divided, all the gonads stick to the upper shell, while teeth and internal organs gather in the lower shell.

  Further, the present invention cuts without damaging the shell by pressing the sea urchin against the rotating blade with the sea urchin not fixed, and rotating the sea urchin by rotating the rotary blade to gradually form a cut in the shell. It is based on the knowledge that it can be done.

  According to a first aspect, the present invention provides a sea urchin splitting device that forms a cut in a sea urchin shell from the side and divides the shell into a mouth side and an anus side. This device is for placing a sea urchin on either the mouth side or the anal side of the sea urchin so that the sea urchin is in contact with the sea urchin placed on the base. A notch forming mechanism having a rotating blade and a pressing mechanism configured to have a rotating body that freely rotates around a rotation axis in a substantially vertical direction and is configured to be movable in the direction of the rotating blade from a position where the rotating body faces the rotating blade With. By providing each of these mechanisms, the device presses the sea urchin against the side of the sea urchin by pressing the rotating body of the pressing mechanism against the side of the sea urchin, so that the sea urchin is placed around the central axis passing through the mouth and anus. While rotating by rotation, a cut can be formed from the side over the entire circumference of the shell.

  In one embodiment, the cut forming mechanism of the present apparatus includes one rotary blade and one support that freely rotates around a substantially vertical rotation axis and supports the sea urchin from the side. be able to. In this case, the rotary blade and the support are juxtaposed so that the distance between their outer peripheries is smaller than the diameter of the sea urchin shell. In another embodiment, the cut forming mechanism of the apparatus may include two rotary blades having the same rotation direction and rotation speed. In this case, the two rotary blades are juxtaposed so that the distance between the outer peripheries is smaller than the diameter of the sea urchin shell.

  In one embodiment, it is preferable to arrange circular thick plates concentric with the rotary shaft of the rotary blade on both sides or one side of the rotary blade. The diameter of the circular thick plate is smaller than the diameter of the rotary blade, and the difference between the diameter of the rotary blade and the diameter of the circular thick plate corresponds to the thickness of the sea urchin shell.

  In one embodiment, it is preferable that the pressing mechanism includes a rod-like member whose one end is rotatably supported, and the rotating shaft of the rotating body is attached to the rod-like member.

  In one embodiment, the present apparatus may further include a pressing mechanism for pressing the sea urchin placed on the table from the side opposite to the table.

  In one embodiment, the base and the rotary blade are configured to be relatively movable in the height direction so that the rotary blade hits an appropriate position on the side of the sea urchin according to the size of the sea urchin on the base. It is preferred that

  According to a second aspect, the present invention provides a sea urchin splitting method in which a sea urchin shell is cut from the side to divide the shell into a mouth side and an anus side. The method comprises the steps of rotating a rotary blade for forming a cut in the shell by hitting the sea urchin from the side, and placing either the mouth or anal side of the sea urchin on the base so that it is in contact with the base. By placing the sea urchin and pressing the sea urchin against the rotary blade from the direction facing the rotary blade across the sea urchin, the sea urchin is rotated around the central axis passing through the mouth and anus by the rotation of the rotary blade. Forming a cut from the side over the entire circumference of the shell.

  In one embodiment, in the step of forming the cut, the sea urchin is pressed against the rotary blade from the direction facing the rotary blade with the sea urchin sandwiched therebetween, and the sea urchin is taken from a direction different from the facing direction and the direction where the rotary blade hits. It may include forming a cut in the sea urchin shell while supporting. In another embodiment, the step of rotating the rotary blade further includes rotating two juxtaposed rotary blades at the same rotational direction and rotational speed, and the step of forming the cut is performed with 2 sea urchins sandwiched therebetween. It can include forming a cut in the sea urchin shell by pressing the sea urchin against the two rotary blades from the direction facing the two rotary blades.

  In one embodiment, it is preferable that the method further includes a step of pressing a sea urchin placed on the table from the side opposite to the table.

  In one embodiment, the present method is configured such that the table and the rotary blade are relatively positioned in the height direction so that the rotary blade hits an appropriate position on the side of the sea urchin according to the size of the sea urchin on the table. It is preferable to further include the step of moving.

  According to the present invention, by dividing the shell into the mouth side and the anus side, only the gonads are collected without damaging the gonads and preventing the contamination of foreign bodies, without destroying the shape of the half-moon-like tufts. can do. Further, according to the present invention, the sea urchin placed on the table in an unfixed state is pressed against the rotating blade with a rotating body movable in the direction of the rotating blade, so that the rotating blade hits the shell, and the rotation The rotating blade cuts small cuts continuously and shallowly on the surface of the sea urchin shell that is rotated by the rotation of the blade. By repeating this, innumerable stabs are connected, and the shell can be cut up and down neatly without generating fine debris that may occur in the conventional technique of scraping the shell.

It is a schematic top view of the sea urchin horizontal dividing apparatus concerning one Embodiment of this invention. It is a schematic side view for demonstrating the detail of the cut formation mechanism of the sea urchin horizontal dividing apparatus concerning one Embodiment of this invention. It is a schematic side view for demonstrating the detail of the pressing mechanism of the sea urchin horizontal dividing apparatus concerning one Embodiment of this invention. It is a schematic side view for demonstrating the detail of the holding | suppressing mechanism of the sea urchin horizontal dividing apparatus concerning one Embodiment of this invention. It is a schematic top view for demonstrating the usage method of the sea urchin horizontal dividing apparatus concerning one Embodiment of this invention. It is a schematic top view of the sea urchin horizontal dividing apparatus concerning another embodiment of this invention.

  Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 is a top view of a sea urchin horizontal dividing apparatus 1 according to an embodiment of the present invention.

[Outline of the device]
As shown in FIG. 1, the sea urchin splitting device 1 includes a base 10 on which the sea urchin U is placed, and a slit forming mechanism having a rotary blade 22 for hitting the sea urchin U from the side to form a slit CL in the shell. 20 and a pressing mechanism 30 that moves the sea urchin U placed on the table 10 from the position facing the rotary blade 22 toward the rotary blade 22 and presses the sea urchin U against the rotary blade 22. The sea urchin horizontal dividing device 1 further preferably includes a pressing mechanism 40 that presses the sea urchin U placed on the base 10 from the side opposite to the base 10.

  The sea urchin horizontal dividing device 1 moves the sea urchin U placed on the table 10 without being fixed in the direction of the rotary blade 22 by the pressing mechanism 30, and further presses the sea urchin U against the rotary blade 22. While turning the sea urchin U by rotation, the shell can be cut. While the sea urchin U is rotated by the rotation of the rotary blade 22, a cut is gradually formed over the entire circumference of the side of the shell, and finally the cut is connected and the shell is cut. According to this sea urchin horizontal dividing device 1, the sea urchin U can be neatly divided into the mouth side having teeth and internal organs and the anus side having gonads without generating shell fragments.

[Stand]
The table 10 has an upper surface 12 on which the sea urchin U is placed. The platform 10 is preferably configured to be movable in the height direction so that the position of the upper surface 12 can be changed. It is preferable that the upper surface 12 has no unevenness in a portion where the sea urchin U is moved toward the cut forming mechanism 20 so as not to hinder the sea urchin U from moving.

  In the present embodiment, the position in the height direction of the rotary blade 22 to be described later is fixed, and rotated to an appropriate height to form the cut CL from the side of the sea urchin U placed on the upper surface 12. It is comprised so that the base 10 can be moved to a height direction so that the blade 22 may be located. The mechanism for moving the table 10 in the height direction is not particularly limited. For example, a mechanism well known to those skilled in the art, such as a ball screw, an air cylinder, a hydraulic cylinder, or the like on a support portion (not shown) of the table 10. By providing this, a moving mechanism in the height direction can be realized.

[Cut formation mechanism]
FIG. 2 is a side view for explaining details of the cut forming mechanism 20 of the sea urchin horizontal dividing device 1. FIG. 2 is a view of the sea urchin horizontal dividing device 1 as viewed from the left side of FIG.
The cut forming mechanism 20 includes a rotary blade 22 for forming a cut CL by hitting a sea urchin shell placed on the upper surface 12 of the table 10 from the side. In the present embodiment, the cut forming mechanism 20 includes two rotary blades 22 having the same diameter, as shown in FIG. The two rotary blades 22 are arranged such that the distance between the outer circumferences of the rotary blades 22 is smaller than the diameter of the sea urchin U shell. Such two rotary blades 22 also serve to hold the sea urchin U in an appropriate position while the cut CL is formed.

  In the present embodiment, each rotary blade 22 is formed by forming sawtooth teeth on the entire circumference of a circular thin plate having a thickness of about 0.6 mm to about 0.8 mm. However, the present invention is not limited to this. Absent. The material of the rotary blade 22 is not particularly limited as long as it has a strength capable of forming the cut CL in the sea urchin U shell.

  It is preferable to arrange a circular thick plate 24 concentric with the rotary blade 22 on both sides or one side of each rotary blade 22. The circular thick plate 24 has a function of reinforcing the rotary blade 22 that is a thin plate and defining the depth at which the rotary blade 22 enters the sea urchin U. The diameter of the circular thick plate 24 is preferably set to be smaller than the diameter of the rotary blade 22 so that the difference from the diameter of the rotary blade 22 corresponds to the thickness of the shell of the sea urchin U. By setting the relationship between the diameter of the rotary blade 22 and the diameter of the circular thick plate 24 in this way, when the rotary blade 22 penetrates the shell of the sea urchin U, the shell hits the peripheral edge of the circular thick plate 24, and the rotary blade No more 22 enters the sea urchin U and therefore does not damage the gonad.

  The rotary blade 22 and the circular thick plate 24 arranged on both sides or one side thereof are fixed to the rotary shaft 26. The rotating shaft 26 is rotated by a driving force from a driving unit (not shown), and the two rotary blades 22 in the present embodiment are configured to rotate in the same direction at the same speed. The rotating shaft 26 can be passed through a through-hole provided so as to penetrate from the upper surface 12 to the lower surface of the table 10, or can be arranged outside the table 10.

  In this embodiment, it is comprised so that the base 10 which mounts the sea urchin U can be moved to a height direction so that the rotary blade 22 may hit the appropriate position of the sea urchin U side. However, in order to make the rotary blade 22 come to an appropriate position on the side of the sea urchin U, the configuration is not limited to the configuration in which the base 10 is moved in the height direction. Either a configuration that enables movement of 22 in the height direction or a configuration that enables movement of both the table 10 and the rotary blade 22 in the height direction may be employed. Regardless of the configuration, the table 10 and the rotary blade 22 are made high so that the rotary blade 22 hits an appropriate position on the side of the sea urchin U according to the size of the sea urchin U on the table 10. What is necessary is just to be comprised so that a relative movement is possible.

[Pressing mechanism]
FIG. 3 is a side view for explaining the details of the pressing mechanism 30 of the sea urchin horizontal dividing device 1. FIG. 3 is a view of the sea urchin horizontal dividing device 1 as viewed from the lower side of FIG. 1.
The pressing mechanism 30 is attached at any position between a shaft 32 attached to the base 10, a rod-like member 34 rotatably supported around the shaft 32, and both ends 34 a and 34 b of the rod-like member 34. Rotating body 36.

  The rod-like member 34 has an end 34 a rotatably attached to the shaft 32, and extends substantially parallel to the upper surface 12 of the table 10 from the end 34 a. The rod-shaped member 34 can be freely moved in the directions indicated by the double arrows in FIG. 1, that is, the A1 direction and the A2 direction, with the end 34a attached to the shaft 32 as a fulcrum.

  A substantially cylindrical rotator 36 is attached to any position between the end 34 a of the rod-shaped member 34 and the end 34 b on the opposite side. The rotating body 36 has a side surface 36s that contacts the sea urchin U from the side. The rotating body 36 is supported by a rotating shaft 36c orthogonal to the longitudinal direction of the rod-shaped member 34, and freely rotates around the rotating shaft 36c. The position where the rotating body 36 is attached to the rod-shaped member 34 is a position suitable for pressing the sea urchin U against the rotating blade 22 when the rotating body 36 is moved in the direction of A1 by the rod-shaped member 34, that is, the direction of the rotating blade 22. is there. In the present embodiment in which two rotary blades 22 are provided, the position where the rotary body 36 is attached to the rod-shaped member 34 is such that the sea urchin U is pressed against both rotary blades 22 by the rotary body 36 with substantially equal force. In addition, it is preferable that the distance between the center axis 36c of the rotating body 36 and the center axis 26 of each rotary blade 22 when the sea urchin 36 is pressed is substantially equal.

  In the present embodiment, the rotating body 36 is attached to the rod-like member 34 so as to freely rotate around the rotating shaft 36c. However, the rotating body 36 rotates by, for example, incorporating a motor or the like therein. It may be made to do.

[Pressing mechanism]
FIG. 4 is a side view for explaining details of the pressing mechanism 40 of the sea urchin horizontal dividing device 1. FIG. 4 is a view of the sea urchin horizontal dividing device 1 as viewed from the lower side of FIG. 1, but the pressing mechanism 30 provided on the front side is not described for easy understanding.
The pressing mechanism 40 includes a shaft 42 attached to the base 10 and a flat plate-shaped pressing member 44 that is rotatably supported around the shaft 42 as a fulcrum. The pressing member 44 is pivotally supported without being fixed to the shaft 42 at a position slightly shifted from the end portion 44a in the center direction. A coil spring 46 whose one end is locked to the pressing member 44 is provided between the pivotally supported position and the end portion 44 a, and the end portion 44 a of the pressing member 44 is pushed upward by the coil spring 46. A shaft provided between an end 44 a of the pressing member 44 and an end of a spring receiver 48 described later passes through the center of the coil spring 46.

  Below the end 44 a of the pressing member 44, a spring receiver 48 for receiving the extension force of the coil spring 46 is provided. The spring receiver 48 extends in parallel with the pressing member 44, the other end of the coil spring 46 is locked near one end, and is fixed to the shaft 42 near the other end.

  In the pressing member 44, the end 44a is pushed upward by the extension force of the coil spring 46, and the end 44b is pushed downward by the extension force with the portion where the pressing member 44 is pivotally supported by the shaft 42 as a fulcrum. . As a result, the end portion 44 b pushes down the flat mouth side or anal side of the sea urchin U downward, and the sea urchin U is pressed against the upper surface 12 of the table 10. While the sea urchin U is pressed against the rotary blade 22, the cut CL is formed. At that time, the sea urchin U may jump up by the rotational force of the rotary blade 22, and the spring mechanism 40 prevents the sea urchin U from jumping up. Can do.

  It is preferable that the end portion 44b of the pressing member 44 is formed so that the portion that contacts the flat mouth side or the anal side of the sea urchin U is wider than the other portions so that the sea urchin U can be more effectively pressed. . It is preferable to provide a handle 49 for use when placing the pressing member 44 on the sea urchin U at the end 44b of the pressing member 44.

[How to use the device]
FIG. 5 is a schematic diagram for explaining how to use the apparatus.
First, as shown in FIG. 5A, the sea urchin U is placed at an appropriate position on the table 10. The sea urchin U is preferably placed at a position close to and equidistant from the two rotary blades 22. The sea urchin U may be placed so that the mouth side is in contact with the upper surface 12 of the table 10 or may be placed on the anus side, but by placing the mouth side in contact with the upper surface 12, When the upper half of the shell is lifted after being divided, the germ layer attached to the shell is in a hanging state, so that damage to the gonad can be prevented more reliably.

  Next, the table 10 is moved in the height direction so that the rotary blade 22 hits an appropriate position on the side of the sea urchin U, and the height direction distance between the upper surface 12 of the table 10 and the rotary blade 22 is increased. Adjust. Next, the pressing member 44 of the pressing mechanism 40 is moved in the direction of arrow A3 in FIG. 5A while lifting the end portion 44b, and placed on the sea urchin U placed on the table 10. Thereafter, the external power source is turned on to rotate the two rotary blades 22. The two rotary blades 22 are preferably set to rotate in the same direction at the same speed. Next, the rod-shaped member 34 of the pressing mechanism 30 is moved in the direction of the arrow A1 in FIG. 5B, and the side surface 36s of the rotating body 36 is pressed against the sea urchin U from the side. As shown in FIG. 5C, the rod-shaped member 34 is further moved in the direction of the arrow A1, and the sea urchin U is moved in a direction closer to the rotating blade 22 that rotates. At this time, the sea urchin U has not yet rotated.

  When the rod-shaped member 34 is further moved in the direction of the arrow A1 and applied to the rotary blade 22 that rotates the sea urchin U as shown in FIG. 5 (d), the sea urchin U is in a direction opposite to the rotational direction of the rotary blade 22. Start spinning. When the rod-shaped member 34 is further moved in the direction of the arrow A1, the spine of the sea urchin U breaks against the rotating rotary blade 22 and the circular plank 24 and is removed from the shell. Next, the rotary blade 22 hits the exposed shell from which the barbs have been removed, and the rotary blade 22 forms a cut on the side surface of the sea urchin U that rotates at approximately the same speed as the rotary blade 22. When the sea urchin U is continuously pressed against the rotary blade 22 by the rotating body 36, a cut is gradually formed on the side surface of the rotating sea urchin U, and finally the cut is connected over the entire circumference of the sea urchin U. As a result, as shown in FIG. 5E, the sea urchin U shell is divided into an upper shell with a gonad attached thereto and a lower shell with a blade and a viscera.

[Another embodiment]
FIG. 6 is a top view for explaining another embodiment of the sea urchin horizontal dividing apparatus according to the present invention. In FIG. 6, the pressing mechanism 40 is not shown for easy understanding.
The embodiment shown in FIG. 6A is a sea urchin horizontal dividing device 1 ′ in which the cut forming mechanism 20 includes only one rotary blade 22. In this sea urchin horizontal splitting device 1 ′, unlike the sea urchin horizontal splitting device 1, only one rotary blade 22 for forming a cut CL in the shell of the sea urchin U is provided. By pressing U against one rotary blade 22, a cut line CL is formed on the side surface of the sea urchin U. The position at which the rotary body 36 is attached to the rod-shaped member 34 is such that when the sea urchin U is pressed against the rotary blade 22 by the rotary body 36, the rotational axis of the rotary body 36, the rotational axis when the sea urchin U rotates, and the rotary blade It is preferable that the 22 rotation shafts are substantially linearly arranged. The sea urchin splitting device 1 ′ preferably includes a guide 52 on the side of the sea urchin U so that the sea urchin U does not move from an appropriate position during the formation of the cut CL. It is preferable that the position can be changed.

  The embodiment shown in FIG. 6B is a sea urchin splitting device 1 ″ in which the cut forming mechanism 20 includes one rotary blade 22 and one support body 62. In this sea urchin horizontal dividing device 1 '', one rotary blade 22 for forming a cut in the shell of the sea urchin U, and the sea urchin U at an appropriate position in cooperation with the rotary blade 22 during the formation of the cut CL. It is comprised so that the support body 62 for hold | maintaining may be provided. It is preferable that the support body 62 has a substantially cylindrical shape like the rotator 36 and has a side surface 62s that contacts the sea urchin U from the side. The support body 62 can be freely rotatable around the rotation shaft 63 so as to be rotated by a sea urchin U rotated by the rotation of the rotary blade 22. Alternatively, the support body 62 may be rotated in the same direction at the same speed as the rotary blade 22 by a driving force from a driving unit (not shown).

DESCRIPTION OF SYMBOLS 1 Sea urchin horizontal dividing apparatus 10 Upper surface of 12 units 20 The cut formation mechanism 22 The rotary blade 24 The circular thick plate 26 The rotating shaft 30 The pressing mechanism 32 The shaft 34 The rod-shaped member 36 The rotating body 36c The rotating shaft 36s The side surface 40 The pressing mechanism 42 The shaft 44 The pressing member 46 Coil spring 48 Spring holder 49 Handle 52 Guide 62 Support body U Sea urchin CL

Claims (12)

A sea urchin splitting device that forms a cut in the sea urchin shell from the side and divides the shell into a mouth side and an anus side,
A platform on which the sea urchin is placed so that either the mouth side or the anal side of the sea urchin is in contact with the sea urchin,
A cut forming mechanism having a rotary blade for hitting the sea urchin placed on the table from the side to form a cut in the shell;
A pressing mechanism having a rotating body that freely rotates around a rotation axis in a substantially vertical direction, and configured to be movable in a direction of the rotating blade from a position where the rotating body faces the rotating blade;
The rotating body of the pressing mechanism is applied to the side of the sea urchin to press the sea urchin against the rotary blade, and the rotation of the rotary blade rotates the sea urchin around the central axis passing through the mouth and anus, A sea urchin splitting device, characterized in that it can be formed with a cut from the side over the entire circumference. The cut formation mechanism is
One of the rotary blades;
A single support that rotates freely around a substantially vertical axis of rotation and supports the sea urchin from the side,
The sea urchin splitting device according to claim 1, wherein the rotary blade and the support are juxtaposed such that a distance between their outer peripheries is smaller than a diameter of the sea urchin shell. The cut formation mechanism is
Two rotating blades having the same rotation direction and rotation speed are provided,
The sea urchin splitting device according to claim 1, wherein the two rotary blades are juxtaposed such that the distance between the outer peripheries thereof is smaller than the diameter of the sea urchin shell.   A circular thick plate concentric with the rotary blade is disposed on both surfaces or one surface of the rotary blade, and the diameter of the circular thick plate is smaller than the diameter of the rotary blade, and the diameter of the rotary blade and the circular thick plate The sea urchin splitting device according to claim 2 or 3, wherein a difference from the diameter corresponds to a thickness of the sea urchin shell.   2. The sea urchin horizontal according to claim 1, wherein the pressing mechanism includes a rod-like member whose one end is rotatably supported, and the rotating shaft of the rotating body is attached to the rod-like member. Splitting device.   The sea urchin splitting device according to claim 1, further comprising a pressing mechanism for pressing the sea urchin placed on the table from a side opposite to the table.   The table and the rotary blade are configured to be relatively movable in the height direction so that the rotary blade hits an appropriate position on the side of the sea urchin according to the size of the sea urchin on the table. The sea urchin horizontal dividing apparatus according to claim 1, wherein A sea urchin horizontal dividing method that forms a cut from the side of a sea urchin shell and divides the shell into a mouth side and an anus side,
Placing the sea urchin on the table so that either the mouth side or the anal side of the sea urchin is in contact with the table;
A step of rotating the rotary blade;
Pressing the sea urchin against the rotary blade from the direction facing the rotary blade across the sea urchin, rotating the sea urchin around a central axis passing through the mouth and anus by rotation of the rotary blade, the sea urchin shell Forming a cut from the side over the entire circumference,
The sea urchin horizontal dividing method characterized by including this.   The step of forming the cut includes pressing the sea urchin against the rotary blade from a direction facing the rotary blade across the sea urchin, and from the direction different from the facing direction and the direction where the rotary blade hits. 9. The sea urchin horizontal dividing method according to claim 8, further comprising forming a cut in the sea urchin shell while supporting the sea urchin. The step of rotating the rotary blade further includes rotating two juxtaposed rotary blades at the same rotational direction and rotational speed,
The step of forming a cut includes forming a cut in the sea urchin shell by pressing the sea urchin against the two rotary blades from a direction facing the two rotary blades across the sea urchin. The sea urchin horizontal dividing method according to claim 8, wherein   The sea urchin horizontal dividing method according to claim 8, further comprising a step of pressing the sea urchin placed on the base from a side opposite to the base.   A step of relatively moving the table and the rotary blade in the height direction so that the rotary blade hits an appropriate position on the side of the sea urchin according to the size of the sea urchin on the table. The sea urchin horizontal dividing method according to claim 8, wherein the sea urchin is divided.

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