JP3039910B2 - Latch for scallop cultivation - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fastener used for scallop cultivation. In particular, the present invention, for automatic mounting of the locking device, the mounting of a ladder-shaped molded product having a plurality of locking devices integrally arranged on the mounting machine, without doubt, for scallop cultivation that can be performed accurately. It relates to a locking device.

[0002]

2. Description of the Related Art A scallop, specifically a juvenile scallop, is inserted into a rope by inserting a rod-shaped stopper into the rope at predetermined intervals in the length direction of the rope and projecting outward in the radial direction of the rope. Conventionally, a method of cultivating scallops by culturing scallops by suspending the ropes in the sea and engaging the ropes in the holes provided in the ear portions of the horns is known.

[0003]

The locking device is formed by arranging a number of bar-shaped locking devices in parallel at a predetermined pitch. The upper and lower ends of each locking device are connected to each other by upper and lower horizontal rail members, and a large number of the locking devices and the upper and lower horizontal rail members are integrally formed of resin to form a ladder shape. Is supplied to consumers (scallop farmers) as resin molded products.

[0004] A large number of the ladder-shaped molded products provided with the above-mentioned individual locking members are stacked and set in a supply cassette case. A feed mechanism for feeding the stacked ladder-like molded products is provided in the cassette case, and an outlet for one ladder-like molded product is provided at an end of the cassette case. A holding rotor for pulling out the molded product is disposed at the outlet portion, and a locking tool holding groove for hooking and pulling out and holding the locking tool is provided on the outer periphery of the rotor. In addition, a cutter for separating the individual locking tools and the upper and lower horizontal rail members holding the locking tools is disposed at the outlet portion.

[0005] The individual locking members separated as described above are vertically held in the grooves on the outer periphery of the holding rotor, and the rotor is attached to the holding rotor.
It rotates by the pitch and is guided to the locking position of the scallop and rope. At this position, the ears of the scallop and the rope are drilled, and after the drilling, a predetermined locking tool in the groove of the rotor is pushed out from the rotor groove, and the locking tool is inserted into the ear of the scallop and the hole of the rope. Penetrate.

[0006] As described above, the penetration of the locking device into the rope,
And the scallop is automatically locked by the mounting machine. By the way, there are a plurality of types of locking tools depending on the type of scallop and the number of scallops to be locked. The locking devices are provided as a ladder-shaped molded product as described above, and are often substantially the same size, even if the locking devices themselves have different shapes and the like.
For this reason, when setting the ladder-shaped molded product in the cassette case, there is a possibility that different types of ladder-shaped molded products may be mixed. When other kinds of things slip in, the rope set according to the locking tool,
There is a possibility that the locking operation with the scallop may be inconvenient. Also, if the ladder-shaped molded product is set upside down in the cassette case, it will cause a locking operation error and cause a mechanical trouble.

For this reason, when setting the ladder-shaped molded product in the cassette case, there is a possibility that different types of products may be mixed in even if the utmost care is taken. On the other hand, it is difficult to strictly manage the types of ladder-shaped molded products including a very large number of ladder-shaped molded products including different types, and strictly manage the setting of the set to the mounting machine. In addition, since sorting of a plurality of types of ladder-shaped molded products needs to be performed by visually checking the fasteners of the individual molded products, it is difficult to distinguish them at a glance, and there are many problems in sorting.

The present invention has been made to solve such a problem. An object of the present invention is to prevent the mixing of different types of molded products, and hence the locking device, before mounting the ladder-shaped molded product of the locking device to the above-mentioned automatic mounting machine or the like, and to obtain a necessary An object of the present invention is to provide a locking device for scallop cultivation in which the locking device can be accurately and reliably attached to a rope or a scallop and pierced therethrough.

[0009]

Means for solving the above problems BRIEF SUMMARY OF THE INVENTION may, in claim 1, an elongated shaft portion, provided with a locking portion of銛状at least one end of the shaft portion, scallops engaging the In the scallop cultivation locking tool, which penetrates the hole and the rope and locks the scallop on the rope to perform scallop cultivation, the locking tool has upper and lower ends mutually separated by upper and lower horizontal bar members. A large number of joints are connected to form a ladder-like molded product integrally formed of resin with the large number of locking members and the upper and lower horizontal rail members, and the upper and lower horizontal rail members of the ladder-like molded product are formed. At least one of the ladder-shaped molded products has a convex part to check the type and top and bottom
Characterized in that a structure was confirmed unit in.

According to the second aspect , the elongated shaft portion and the small number of the shaft portions are provided.
At least one end has a harpoon-shaped locking part, and a scallop locking hole
Part, penetrate the rope, hook the scallop to the rope and sail
Scallop cultivation hook for scallop cultivation
The upper and lower ends of the locking device are mutually connected by upper and lower cross members.
A large number of joints are connected side by side, and the large number of locking tools and the upper and lower
A ladder-like molded product integrally molded with resin
And at least one of the upper and lower cross members of the ladder-shaped molded product.
To check the type of this ladder-shaped product and the top and bottom,
Confirmation part configured on either part or missing part
It is characterized by.

[0011] Claim 3 is based on Claim 1 or Claim 2.
And the convex portion, the concave portion, or the missing portion
It is characterized in that one or more confirmation units are provided.
You.

[0012]

According to the above-mentioned means, since one of the upper and lower horizontal rails of the ladder-like molded product of the locking device is provided with a convex portion or a concave portion, the type and shape of the unevenness can be extremely easily determined by visual inspection. Can be determined. Also, if grooves or ridges are provided on the inner bottom surface or ceiling surface of the cassette case for setting the ladder-shaped molded product so as to correspond to the unevenness, a locking tool is used when setting the molded product in the cassette case. If the concave and convex portions on the side do not fit, it cannot be set in the cassette case. Therefore, when a different kind of ladder-shaped molded article is mixed in, a different kind cannot be set, and it is immediately found out that it is a non-conforming article. Further, even if the user attempts to set the upper and lower parts incorrectly, the concave and convex portions do not fit, and the user cannot set the cassette case.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a front view of a ladder-like molded product having a large number of fasteners according to a first embodiment of the present invention, FIG. 2 is a bottom view of FIG. 1, and FIG. FIG. 4 is a perspective view, FIG. 4 is a plan view of a main part of the automatic mounting machine, and FIG.
FIG. 6 is a sectional view taken along line 6-6 of FIG. 4, FIG. 7 is an explanatory longitudinal sectional view showing scallop, rope drilling, and piercing operation of the locking device, and FIG. 8 is a locking device attached to the rope. FIG. 9 is a partial front view of a ladder-like molded product in which a number of locking tools according to a second embodiment of the present invention are juxtaposed, and FIG.
FIG. 11 is a partial front view of the ladder-shaped molded product of the fourth embodiment, FIG. 11 is a partial front view of the ladder-shaped molded product of the fourth embodiment, FIG. 12 is a partial front view of the ladder-shaped molded product of the fifth embodiment, FIG. FIG. 1 is an explanatory view showing a scallop locked state by a locking device according to a fifth embodiment, FIG.
4 is a partial front view of the ladder-like molded product of the sixth embodiment, FIG.
FIG. 14 is an explanatory view showing a scallop locked state by a locking device according to a sixth embodiment.

FIG. 1 is a front view of a ladder-like molded product 1 in which a number of locking tools are juxtaposed and integrally formed. As for the locking tools 2,... 2a is formed in the shape of a harpoon diverging downward. Immediately after the distal end portion 2a, a small diameter is formed, and in the downstream portion of the small diameter neck portion 2b, a section having a larger diameter is formed as a circular shaft portion 2c in a straight line of a predetermined length, and at a lower end portion of the shaft portion 2c, A cylindrical base 2d having a truncated conical top and a thick bottom is formed.

A large number of the above-mentioned locking members 2 are arranged side by side at a predetermined pitch. A thin upper bridge portion 2e is formed at the tip of the distal end portion 2a of each locking tool 2, and a thin lower bridge portion 2f is formed at the lower end surface of the base portion 2d provided at the rear end portion of the lower end. The upper bridge portions 2e are connected to the lower surface of the upper horizontal rail member 3 via the pedestal 2g, and the lower bridge portions 2f are connected to the upper surface of the lower horizontal rail member 4. Have been.

The ladder-like molded product 1 provided with the above-described locking members 2 and the respective portions thereof, and the upper and lower horizontal beam members 3 and 4 are all integrally formed of resin at the respective portions. A projection 5 serving as a confirmation portion is suspended and protruded from a portion of the lower surface 4a of the horizontal rail member 4 below the ladder-like molded product 1 near one end in the longitudinal direction. Protrusion 5
Has a round pot-shaped one protruding from the lower surface of the lower horizontal rail 4,
Any shape such as a cylindrical shape and a prismatic shape can be used.

FIG. 3 to FIG. 7 show an automatic mounting machine 100 of the locking device according to the present invention. The automatic mounting machine 100 includes a box-shaped cassette case 101, a cutter 109, and a rotor 108.
Etc. The cassette case 101 stores the above-described ladder-like molded products 1.
The inner bottom 101a of the case 101 is provided with a concave bottom 101b on the left side of FIGS. 3, 4 and 5, and the protrusion 5 of the lower horizontal rail 4 of the ladder-like molded product 1. It abuts the side surface of the shoulder 101c on the inner side in the direction.

As a result, when the projections are different in position and the number of projections are different, the projections do not correspond to the concave bottom portion 101b, the projections run on the inner bottom portion 101a, and the type of the ladder-shaped molded product, Is immediately found to be of a different type, not contained in the cassette case. Further, it is immediately found that a different type of ladder-shaped molded product is entrapped in the ladder-shaped molded product provided with the locking tool of the type to be set, and the work of removing the ladder-shaped molded product can be easily performed.
The removal operation can be performed very easily and quickly by confirming the protrusion, and it is not necessary to visually check the shape of the locking tool of the ladder-like molded product.

Immediately before the front plate 101d of the cassette case 101, a guide groove 102 in the width direction is formed at the front end of the inner bottom portion 101a.
The thickness is set to be slightly larger than the thickness of the ladder-like molded product 1 so that one molded product 1 can move in the lateral direction. This is clearly shown in FIG. On the side opposite to the inner bottom portion 101a of the front plate 101d, there is provided a notch portion 103 having a number of locking tools, and the notch portion 103 extends to the bottom of this portion of the case 101 and the front end of the side plate 101e. Is formed to reach.

A pressing plate 104 is disposed on the inner bottom portion 101a of the cassette case 101. The pressing plate 104 has a T-shape as shown in FIGS.
Reference numeral 04a is a central portion of the inner bottom portion 101a and is fitted to a slit 101f provided in the front-rear direction. The bar 104a secures the washer 104b from below with a screw 104c to prevent the bar 104a from floating from the slit 101f. On the other hand, bar 10
The center of the front of 4a is connected to the rear end of the pull rope 105, and the rope 105 passes through the slit 101f,
The distal end is connected to a suspended weight 107 via a pulley 106 provided below the front end of the case 100. Therefore,
The pressing plate 104 is pulled by the weight 107 via the rope 105, and presses the ladder-like molded products 1 stacked in the front-rear direction forward.

The above-mentioned notch 10 of the case 101
3, the holding rotor 108 of the locking tool is arranged vertically. The holding rotor 108 is intermittently rotated around a vertical shaft 108a by, for example, a built-in pulse motor or the like, and has radially holding grooves 108a of the locking members 2 at a predetermined pitch on the outer periphery. A part of the holding rotor 108 is arranged in the notch 103 as clearly shown in FIGS.

Downstream of the rotor 108 in the direction of rotation indicated by the arrow, outside the side of the notch 103,
a, a cutter 109 provided with 109b is arranged. The cutter 109 is rotatably supported by a vertical shaft 109c,
On the downstream side of the cutter 109, the holding plate 110 is arranged in an arc shape over a predetermined circumferential length.

In the above, by the rotation of the rotor 108,
The ladder-like molded product A at the forefront end is engaged with the retaining groove 108a of the rotor 108 at the corresponding position of the locking tool 1 and includes the ladder-like molded product 1 by rotation of the rotor 108, as shown in FIG. Pulled out to the right side of FIG. The locking tool 1 pulled out
Faces the cutter 109, contacts the upper and lower blades 109a, 109b of the cutter 109 while the upper and lower bridge portions 2e, 2f are pulled, and the blades 109a, 1b
At 09b, the bridge portions 2e and 2f are disconnected.

The cut locking member 2 is held in the holding grooves 108a... And the holding plate 11 provided on the outer periphery of the rotor 108.
At 0, the product is held in the outer peripheral direction.
Is moved, and the locking tool 1 at the front of the movement is sequentially cut, held by the holding groove 108a, and sent to the downstream side. The sent lock 1 reaches the mounting position on the downstream side of the holding plate 110. As shown in FIG. 7, the scallop and the rope are pierced, and the locking device 1 is pierced and mounted at the mounting position.

FIG. 7 is an explanatory view showing a perforation of the scallops 120 and 121, a perforation of the rope 122, and a mounting operation of the locking tool 1, and is a partially sectional view. Two scallops 12
0, 121 are vertically separated from each other on a plate jig 123 having a substantially Z-shaped cross section so that the ears 120a, 121a face each other.
It is separated vertically and supported sideways so that it overlaps and faces each other. Ears 120a, 12 that are vertically separated and overlapped
1a, a rope 124 is passed horizontally, and a hole 123a is formed in the center of the jig 123 immediately below the jig 123. A drill 125 descends from above, and the upper ear 120a, the rope 124, and the lower The holes are formed in these with the ears 121a and the drill 125.

The lowering limit of the drill 125 is
It is assumed that the process ends at the position where the perforation a is completed, and FIG. 7 shows a state immediately before the perforation. After drilling, the drill 125 is raised. After drilling, the rotor 108 located immediately below the drilling position
The rod-shaped lifter 126 rises from below the holding groove 108a to raise the locking tool 2 in the groove 108a. The locking device 2 rises through the hole 123a of the jig 123, passes through the holes of the lower scallop ear 121a, the rope 124, and the ear 120a of the upper scallop 120, and the locking portion 2 at the tip end.
a protrudes above the ear 120a through a hole in the upper ear 120a.

As described above, the locking device 1 comprises the scallops 120, 1
The ears 120a, 121a and the rope 124 are pierced, and two scallops are locked to the rope 124 by the locking device 2. The above operations are sequentially repeated to lock a large number of scallops on the long rope 124 via the locking tool 2 at a predetermined pitch. In this way, the scallop is automatically attached to the rope. As described above, the locking tool is held by the holding groove of the rotor 108 from the ladder-shaped molded product, sent, the locking tool 2 is sequentially separated by the cutter 109, sent to the mounting position, and the locking tool is moved to the scallops 120, 121, Attach to the rope 124.

The scallops 120 and 121 are locked and held on the rope 124 by the locking member 2, and this state is shown in FIG. The scallops 120, 121 and the locking device 2 are attached at a predetermined pitch in the length direction of the rope 124, and after being attached, are vertically suspended as shown in FIG.

It is to be noted that the upper and lower cross members 3 and 4 after the locking members 2 are separated become unnecessary, and are discharged from the cassette case 101 in a state where the final locking members are separated, and are stacked like a ladder. Since the molded article 1 is pressed forward by the pressing plate 104 as described above, the next one faces the groove 102,
Repeat the above.

FIG. 9 shows a second embodiment of the present invention. In the present embodiment, the locking device 12 of the ladder-shaped molded product 11 is the same as that of the first embodiment, and the upper and lower horizontal rail members 13 and 14 are confirmed to be closer to the ends on the upper horizontal rail member 13. Projection 1 which is a part
5 is provided. In this case, a concave ceiling and a groove are provided on the ceiling of the case.

FIG. 10 shows a third embodiment of the present invention. In this embodiment, the shape of the locking member 22 of the ladder-like molded product 21 is the same as that described above, and the lower surface of the lower horizontal rail member 24 of the upper and lower horizontal rail members 23 and 24 is moved downward by a predetermined length. The protruding portion 15 has a large protruding amount to form a confirmation portion. In this embodiment, the same structure as that of the inner bottom of the case described above is used.

FIG. 11 shows a fourth embodiment of the present invention. In this embodiment, the shape of the locking member 32 of the ladder-shaped molded product 31 is the same as that described above, and the lower surface of the lower horizontal rail member 34 of the upper and lower horizontal rail members 33 and 34 is set to a predetermined length. A concavity 35 was formed, and a confirmation portion was formed.

FIG. 12 shows a fifth embodiment of the present invention. In the present embodiment, the shape of the locking tool 42 of the ladder-shaped molded product 41 is changed to a harpoon-shaped tip portion 42a, a small-diameter neck portion 42b, and a shaft portion 42 following this.
c, a base portion 42d, and an intermediate portion of the shaft portion 42c is a small-diameter portion 42.
g, and a small-diameter portion 42h before the base 42d. On the lower surface of the lower horizontal rail member 44 of the upper and lower horizontal rail members 43 and 44,
Two projections 45 and 46 were suspended and provided as confirmation parts.

In the ladder-like molded product 41 according to the present embodiment, since the shape of the locking member 42 is different from that of the above-described embodiment, the number of projections below the lower horizontal bar member 44 becomes two, and accordingly, Although a mistake at the time of mounting is immediately known, for example, even if a molded product of one projection is inserted into the molded product 41 of the present embodiment, the number of projections is different. If you touch it, it is easy to find out that different kinds of things are getting in. Also, even if a molded product having two projections has slipped into a molded product with one projection, since there are two projections, if you touch the bottom surface of the laminated molded product, different types of molded products will slip in. It is easy to find out.

By the way, the locking member 42 according to the present embodiment
As shown in FIG. 13, a small diameter portion 42g at the center of the shaft portion penetrates the rope 124, and the rope 124 is held at this portion. The scallops 120 and 121 are locked by the small-diameter neck 42b at the tip of the shaft 42c and the small-diameter portion 42h in front of the base 42d.

FIG. 14 shows a sixth embodiment of the present invention. In this embodiment, the shape of the locking tool 52 of the ladder-shaped molded product 51 is different from the above. Both ends 52a, 52d of the locking tool 52 are sharp, and the locking pieces 52i, 52 are directed toward the inside in the axial direction from the both ends in the same direction outward in the axial direction, respectively.
j is provided symmetrically, and rope locking pieces 52k and 52m are provided in a portion deviated to one side of the shaft portion 52c in the same direction as the locking pieces 52i and 52j in a C shape.

In the embodiment, of the upper and lower horizontal rail members 53, 54, three projections 55, 5 are formed on the lower surface of the lower horizontal rail member 54.
6, 57 are suspended and protruded. Therefore, in the same manner as described above, if a different type of molded article is sunk into the molded article by the number of the projections 55, 56, 57 of the horizontal rail member 54, it can be easily confirmed by touching and visually. can do. As a matter of course, when setting in the cassette case, if different kinds of articles are mixed in, different kinds of molded products will be ejected, and therefore, it is necessary to set the same type of molded articles to an automatic mounting machine. There is no mixing of different types of molded articles and therefore different types of fasteners.

FIG. 15 shows a scallop cultivation state using the locking device 52 according to the present embodiment. The locking device 52 pierced by the rope 124 is clamped by the rope locking portions 52k and 52m in the middle of the locking device 52, and the long shaft portion 52n has a scallop 120
A and 120B are locked, while one short scallop 121 is locked to the short shaft portion 52p and suspended. Therefore, according to the present embodiment, three scallops can be held by one locking member 52 for convenience.

Although the embodiments of the present invention have been described above, the number of the projections, which are the confirmation portions, is set appropriately according to the type of the locking tool, and is not limited to the embodiment. By setting arbitrarily, it is possible to cope with the type. Further, the positions of the concave portions and the protruding portions are not limited to the above, and are arbitrary.

[0040]

As apparent from the above, according to the present invention,
Since one of the upper and lower horizontal rails of the ladder-shaped molded product of the locking tool is provided with a convex portion or a concave portion as a confirmation portion, the type can be extremely easily distinguished visually by the position and number of the concave and convex portions. Also, if grooves or ridges are provided on the inner bottom surface or ceiling surface of the cassette case for setting the ladder-shaped molded product so as to correspond to the unevenness, a locking tool is used when setting the molded product in the cassette case. If the concave and convex portions on the side do not fit, it cannot be set in the cassette case. In particular, even if you try to set the ladder-shaped molded product upside down, the concave and convex parts do not fit, so it is impossible to set upside down.
It can be reliably prevented. Therefore, when a different kind of ladder-shaped molded article is mixed in, a different kind cannot be set, and it is immediately found out that it is a non-conforming article. Also, when a different type of molded product is introduced, for example, by touching the bottom surface, it becomes clear that a different type of product is easily inserted in the number and position of the projections, the concave portions, the projections, etc. This is extremely advantageous in discriminating and sorting the types of the fasteners, and mechanical sorting can be performed accurately and easily.

Therefore, in the attaching operation of the locking device to the rope, the locking of the scallop, and the holding operation by the automatic scallop mounting machine, the mounting of the wrong locking device, that is, the erroneous mounting can be prevented beforehand, surely and easily. can do.

Further, the above effect can be obtained by providing one or more protrusions and recesses on the upper and lower horizontal rail members of a molded product formed in a ladder shape by arranging a large number of fasteners.
Since it is only provided individually or a plurality, the structure is simple,
In addition, since these confirmation portions can be integrally molded at the same time as molding, it is also advantageous in molding.

[Brief description of the drawings]

FIG. 1 is a front view of a ladder-like molded product in which a large number of locking tools according to a first embodiment of the present invention are juxtaposed.

FIG. 2 is a bottom view of FIG. 1;

FIG. 3 is an explanatory perspective view in which main parts of the automatic mounting machine are broken.

FIG. 4 is a plan view of a main part of the automatic mounting machine.

FIG. 5 is a sectional view taken along line 5-5 in FIG. 4;

FIG. 6 is a sectional view taken along line 6-6 in FIG. 4;

FIG. 7 is an explanatory longitudinal sectional view showing a scallop, a rope piercing operation, and a locking device piercing operation.

FIG. 8 is an explanatory view of a state in which a scallop is locked to a rope via a locking device.

FIG. 9 is a partial front view of a ladder-like molded product in which a large number of locking tools according to a second embodiment of the present invention are juxtaposed.

FIG. 10 is a partial front view of the ladder-like molded product of the third embodiment.

FIG. 11 is a partial front view of the ladder-like molded product of the fourth embodiment.

FIG. 12 is a partial front view of the ladder-like molded product of the fifth embodiment.

FIG. 13 is an explanatory view showing a scallop locked state by a locking device according to a fifth embodiment.

FIG. 14 is a partial front view of the ladder-like molded product of the sixth embodiment.

FIG. 15 is an explanatory view showing a scallop locked state by a locking device according to a sixth embodiment.

[Explanation of symbols]

1, 21, 31, 41, 51 ... ladder-shaped molded product, 2, 1
2,22,32,42,52 ... are locking devices, 3,13,
23, 33, 43, 4, 14, 24, 34, 44, 54
… Upper and lower horizontal members, 5, 15, 25, 35, 45, 4
6, 55, 56, 57: Confirmation unit.

──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int. Cl. ⁷ , DB name) A01K 61/00

Claims (3)

(57) [Claims] 1. A scallop cultivation system comprising an elongated shaft portion and a harpoon-shaped locking portion on at least one end side of the shaft portion, penetrating through a locking hole of a scallop and a rope, and locking the scallop on the rope. In the locking tool for scallop cultivation as described above, the locking tools are arranged in parallel by connecting upper and lower ends thereof with upper and lower horizontal rail members, and the plurality of locking tools and the upper and lower horizontal rail members are provided. With this, a ladder-shaped molded product integrally formed of resin is constituted, and at least one of the upper and lower horizontal rail members of the ladder-shaped molded product is provided with a convex portion for confirming the type and the up and down of the ladder-shaped molded product. Structure
A locking device for scallop cultivation, characterized by having a confirmation portion formed . 2. An elongated shaft portion and at least one end of the shaft portion.
A harpoon-shaped locking part is provided on the
Scallop cultivation with the scallop hooked on the rope
In the locking tool for scallop cultivation, the locking tool has upper and lower ends connected to each other by upper and lower horizontal rail members.
A large number of juxtapositions, and the large number of locking members and the upper and lower crosspiece members are integrally formed of resin.
A ladder-like molded article is formed, and at least one of the upper and lower cross rail members of the ladder-like molded article is provided.
The recesses and the recesses for checking the type and up / down
A scallop cultivation locking device, characterized in that a confirmation portion formed on one side of the missing portion is provided . 3. The method according to claim 1, wherein the convex portion, the concave portion, or the missing portion is
The configured confirmation unit is provided with one or more
The locking tool for scallop cultivation according to claim 1 or 2, characterized in that: