JP3201075U - Oyster latch - Google Patents

Abstract

[PROBLEMS] There is no deformation, breakage, or distortion under heavy load when transporting, storing, or handling at aquaculture sites, and it is easy to install stably on a busbar and has very little detachment of juvenile shellfish. We provide oyster culture fasteners suitable for harvesting good oysters. [Solution] It is composed of an elongated resin-made long root trunk 1 that can be inserted into a pore opened at the top of an oyster shell, and is fixed in the central region of the long root trunk 1 for fixing the root 1 to another base material. Members 3 and 3 ′, and at least a pair of shell retaining members 2 and 2 ′ are sequentially provided in the longitudinal direction of the root 1 along the long root 1 toward the central region. It has been. [Selection] Figure 1

Description

  Even when used for a long time, this invention is stable so that cultured shells such as oysters will not fall out of the insertion locking device, or the shell insertion type shell stopper will cut and the cultured shell will not fall into the sea. An oyster shell insertion type shell locker that is formed integrally with a synthetic resin that has a structure that can hold various cultured shellfish for a long period of time in a state where the cultured shellfish are relatively free from detachment, The present invention relates to a shell-inserting type shell stopper for a cultured oyster that functions as a hanging tool, an oyster hanger, or the like. The shell insertion type shell hanger (hanging device) is easy to operate, such as roll winding of the locking device, bobbin winding, detachment, and attachment of the rope for aquaculture. The present invention relates to a connected shell stopper for oyster culture in which a large number of shell suspensions are continuously connected in parallel in a strip shape.

As a method of cultivating oysters, we use a seedling series in which shells like scallops are placed in the sea as seedling containers and attach oyster larvae floating in the sea. Remove and transfer this to another long wire. In this case, use a tubular device such as a bamboo tube or straw to pass the shells alternately between the shells and tubes to create a ream with a certain distance between the shells. It is a common aquaculture method to hang it on and hang it on a spear or longline. In this case, since the oysters grow densely around the shell seedling device, the oyster shell grows in a state where the oysters are attached to each other, so that the oyster shell that is relatively susceptible to environmental influences is distorted. It is almost.
As a countermeasure, in order to cultivate high quality oysters, there is a case where a method is used in which juveniles are removed from a seedling container and transferred to a cocoon.
The number of cocoons to be transferred is usually about 30 to 40, but it is necessary to carry out distributed work by lifting the cocoons from the sea in view of the growth of oysters. At that time, seaweeds that inhibit the growth of oysters are attached to the nets of the oysters, which is accompanied by a troublesome work load that must be removed.

Therefore, recently, in order to harvest a fruitful oyster, called a single oyster, a tegus was used, a hole was made in the oyster shell, the tegus was tied to a rope, and the tegus was passed through the oyster shell. In many cases, oysters are tied in a ring so that they will not fall out of the tegus and hung in the sea.
For reference, FIG. 6 is a photograph showing currently cultivating oysters using Tegs.
Specifically, the tegus are cut to a length of about 20 cm, passed through the rope at an interval of about 17 cm, and then the tegus are tied to the rope, and a hole with a diameter of about 2 mm is made in the oyster. Tie the tegus so that the oysters do not fall out of the tegus.
In this case, as shown in the photographic diagram of FIG. 6, there is a concern that oysters are densely packed, biased, or hinder growth. Since oysters take in phytoplankton as food for day and night, and the amount of seawater that is filtered in a day is very large, it is not recommended from the viewpoint of accelerating the growth of oysters in a dense state.

As seen in Patent Document 1, as an early aquaculture shell locking tool, it is known that an elastic wire is processed so that the shell is suspended.
Further, in Patent Document 2, a synthetic resin thin wire having a block-like latching portion at the tip portion, which is locked to a busbar, is inserted into a small hole drilled in a scallop ear and the scallop is removed. It is also known to prevent separation. However, these wires have a limit in order to attach a large number of juveniles to a shell locking device in a short time efficiently and in a proper manner.
Therefore, when examining the culture method of various shells preferable for oyster culture, for example, as a prior art relating to the scallop culture method, a shell insertion type shell hook (in some cases, "locking tool", "hanger", " This is a method that uses a generic term “hanging device”. The basic structure of this scallop hanging device is symmetrically formed at both ends of an elongated long trunk. There is known a structure in which bus-bar stop projections such as ropes are provided symmetrically near the slip-off prevention portion and substantially the center. It is common to attach a shell locking part symmetrically at approximately equal intervals around a bus bar such as a narrow rope, string or rope, and attach a shellfish shell to the shell hanging part. It has become.

  Specifically, the scallop shells have a shape similar to the ears of the shells that do not affect the living body of the shellfish and that the shell mouth always floats downward when the shellfish is suspended. The position of the shell is referred to as an ear, and a hole is formed by artificial perforation in the ear, and the shell is attached to the hole through the elongated trunk of the shell hook. At both ends of the elongated root, sharply pointed “kaeshi”, “agu”, “return” (see Nihon Encyclopedia 15 page 905 “fishing hook”) or “age” A shell stopper with an aggregating prevention part that performs the function of a “hooking part” (hereinafter also referred to as “aggu” structure), which is sometimes referred to as a scallop shell. When inserted into the perforated pores, the ag part constituting the slip-off preventing part is structured such that the fry is not easily pulled out and separated by the fluff. Such an aquaculture method is commonly referred to as ear-suspended aquaculture, and a number of shell-type shell latches for use in a suspension system called a suspended scallop ear suspension culture have been proposed and put into practical use.

However, there are unexpected phenomena such as fluctuation of seawater due to weather phenomena, shell growth, adhesion of marine organisms, and fatigue and deterioration of materials in the special environment in the sea. When using a latch, the force of rotational movement is applied to the protrusion-shaped part of the scallop ear by the rocking of the shell in seawater, especially for the prevention part such as the ag structure. A creep phenomenon is also added to the omission prevention part, and the ag part forming the omission prevention part is brought into close contact with the root of the locking tool, and further, the weight added by the attachment of marine organisms to the shellfish is added, and damage to the shell latching Due to the nonfunctional function of the ag structure, there is a phenomenon in which the shell falls off the shell latch and easily disengages.
In particular, as a method for aquaculture of oysters, Patent Literature 3 discloses a culture method in which drooping series collected at a seedling farm are rearranged and cultivated with a cocoon, and then transferred to an aquaculture site suitable for oyster cultivation with an appropriate transportation means. It is done.
Furthermore, as an example of a scallop that is different from an oyster as a shell stopper, Patent Documents 4 and 5 are provided with a mounting projection for locking to a rope in the inserted state of the rope at the center of the base material. In the material, the mounting protrusion protrudes, and the hole provided in the ear of the scallop is inserted from the end side of the base material through the mounting protrusion to the inside, so that the scallop is locked by the shell locking protrusion. Shell stoppers have been proposed.

Patent Document 6 includes a sharp tip insertion portion and a retaining portion at the tip of a rod-shaped shaft portion formed of resin, and a sharp rear insertion portion and a retaining tool at the rear portion of the shaft portion. An anchor for a cultured scallop has been proposed, and further provided with an inner locking projection symmetrically on an elongated pin-shaped intermediate part and a symmetrical outer locking projection spaced apart on both sides. An aquaculture shell locking pin constituted by continuous molding has been proposed so that the protrusion is locked to the rope and the shell is locked to the outer locking protrusion.
However, in the case of the locking pin for the cultured shell of Patent Document 6, the scallop is similarly improved although it is slightly improved as compared with the case of the shell locking tool of Patent Documents 4 and 5. When inserting into the rope, the inner locking device is separated and inserted, and the locking device rotates freely according to the flow of seawater tide, and the outer locking projection contacts the convex part of the shell ear. The problem is that the outer locking projections are in close contact with the root and the scallops fall off to the outside of the shaft.
In order to prevent the detachment of the cultured shells from the fasteners, there are problems associated with the selection of the synthetic resin material and the improvement of the omission prevention part that improves and devise the structure and shape of the ag structure omission prevention part. There is a limit to completely preventing detachment of shellfish only by dealing with, and further ingenuity is required.

  Considering the convenience, production, and distribution method for attaching the aquaculture shell hanger to the shell, a reasonable production method is usually a multi-piece gold as seen in Patent Documents 7 and 8. Convenient for storage and transportation to supply a large number of scallop locks to the aquaculture site, as well as to set in a cutting inserter. From the point of convenience, a large number of scallop locks for aquaculture are connected in a large number in parallel (hoop pins) and are handled in the state of being wound around a roll or bobbin It is.

In particular, the recent situation at the aquaculture site shows that although the conventional shell-shaped fasteners that are used to cultivate shells such as scallops are cultivated using conventional ones that are molded from synthetic resin, When various kinds of miscellaneous creatures, such as marine creatures that accompany changes in the global environment, are generated in large quantities and adhere to the cultured scallops, The insertion lock cannot withstand the weight of the shells to which organisms are attached, and it may fall off, and in some cases the insertion lock may be damaged or cut, and the shell will fall to the seabed. The fact is that there is a limit to the collection. For this reason, in the period between landing and shipping the scallops, the cultured shells are once lifted on the ship, washed, or picked up in the sea in order to pick up shells that fall into the sea. Measures such as harvesting by preparing a belt conveyor have been taken, but this requires a lot of time, labor and cost, and is eagerly sought by scallop aquaculture fishermen.
However, at the oyster farming site, measures similar to those for scallops are required, but they also have oyster-specific circumstances, including aquaculture efficiency, price, safety, etc., and measures against oyster mortality. In fact, the situation of using oyster insertion type latches has not been reached.

  The present invention provides a risk of death due to water pollution, changes in seawater temperature, attached organisms, environmental changes, diseases, etc. by appropriately distributing and arranging the oysters of aquaculture oysters in the seawater using shell stoppers. When cultivating a very good oyster while avoiding the situation, in the oyster shell insertion type latch to the shell of the cultured oyster to be used for a long time, make the elongated trunk as thin as possible, The oysters have a new mechanism that reduces the burden on the oysters due to drilling and absorbs the load slightly in the elongated trunk that is the base material when excessive pulling load applied to the oyster drop prevention part is concentrated. It is intended to prevent falling out of the structure of the locking ag protrusion and to prevent the base from being able to withstand the weight of various kinds of miscellaneous organisms attached to the cultured shell, preventing the base from breaking and dropping the oyster into the sea. The challenge That to achieve the cultivation of oyster with a high commercial value oyster shell with attain, is to provide for the insertion type Kaigake stop to useful new oyster shells for oyster farming.

In addition, the present invention competes with the filtering of plankton in seawater for feeding oysters by keeping the distance between adjacent oysters moderately in order to prevent the harmful effects caused by crowding of cultured oysters. If the oyster hook is used for a long time, the oyster will not fall out of the insertion prevention part of the insertion hook, or the insertion type shell hook will be cut and the oyster will not fall into the sea. Another object of the present invention is to provide an oyster insertion-type shell latch that has a high yield and can hold oysters in a stable state for a long time.
In addition, the present invention is easy to transport and store, and can be rolled, bobbin wound, separated, and attached to the rope for aquaculture easily by the machine, and the oysters can be easily detached over time when stably attached to the rope. It is possible to solve the problem by providing a single oyster shell insertion type oyster latch with a relatively small structure and a parallel-connected oyster latch in which the oyster latches are successively connected in a strip shape. It was made.

In the present invention, when cultivating oysters, when the aquaculture conditions in the sea, environmental devices, and hooks are adopted, the detachment from the hooks is caused by the loss of the synthetic resin and the ag structure that constitute the scallop hooks. As a result of comprehensive examination of material design and structural design considering the overall viewpoint including the root of the oyster hook, it is not the cause of the defect in the structure of the prevention part alone. Knowing that the influence of the nature, strength, characteristics, etc. of the material of a certain root stems essentially from the whole shell clasp, from a new perspective, large oysters with good quality and appearance are They have learned how to oyster farming while reducing risk.
Because oysters are bivalves, and the outer shape of the oyster shell tends to be round or elongated depending on the surrounding environment. There is room to devise a culture method with stable shell morphology.
The present invention is characterized by taking the following means in detail in order to solve the above-mentioned problems.

That is, the first feature of the present invention is a long resin-made long root trunk that can be inserted into a pore opened in an oyster shell, and the root is fixed to another base material in the central region of the long root trunk. For fixing at least a pair of shellfish members at both ends in the longitudinal direction of the root are provided sequentially along the long root toward the central region. There is a hook for oyster culture.
The second feature of the present invention is that a pair of bus bar restraining protrusions having a shape in which the fixing member is inclined on the center side with a sufficient interval between the bus bars starting from the vicinity of the center of the root and the bus bar between the bus bars. It is in the latch for oyster culture characterized by being provided symmetrically.
A third feature of the present invention is that the oyster farming is characterized in that the fixing member is provided on the root with a pair of holding structures with a sufficient interval to sandwich the busbar starting from the vicinity of the center of the root. There's a hook for it.

A fourth feature of the present invention resides in an oyster-cultivating latch characterized in that a hooking device is installed near the center of the long root of the fixing member.
The fifth feature of the present invention is that a pair of shell-holding members have a certain distance from the end toward the center along the long roots, and 1 to 5 ag structures are sequentially left and right. There is a latch for oyster culture, characterized in that it is arranged symmetrically.
A sixth feature of the present invention resides in an oyster cultivation latch characterized in that the maximum outer diameter of the ag structure is smaller than the outer diameter of the root trunk inserted into the oyster shell hole.

The seventh feature of the present invention is that the oyster-cultivating hooks adjacent to each other are connected to each other in a strip shape in parallel in a large number through a connecting member extending in a direction perpendicular to the longitudinal direction of the root. It is in the strip | belt-shaped fastener for oyster culture characterized by consisting of the structure which was made.
The eighth feature of the present invention is that the oyster-cultivating clasps adjacent to each other extend at least one connecting member and a tip of at least one fixing member extending in a direction perpendicular to the longitudinal direction of the root. A strip-shaped hook for oyster culture, characterized in that it has a structure in which a large number of strips are sequentially connected in parallel via a connecting member.

The ninth feature of the present invention is a structure in which the ends of the oyster farming belts are connected in series with the ends of the roots or the oyster culture belt-like hooks are wound in a roll shape in a belt-like state. It is stored in, transported and supplied in a state of being wound or wound on a bobbin.
A tenth feature of the present invention is an oyster farming belt-like clasp, wherein the material of the oyster farming belt-like clasp is formed from a flexible plastic material.

The present invention provides a culture period by placing a single product obtained from a oyster culture clasp or a strip-shaped clasp for oyster culture in the oyster shell, preferably in the state of being inserted into a hole drilled in the top of the shell. Not only can oysters be placed in seawater in a stable manner, but also oysters with good fruit called single oysters can be harvested. In addition, it can avoid the harmful effects caused by the concentration of cultured oysters compared to the culture method using Tegus and cocoons, so it can easily take in food such as phytoplankton, and it has an advantageous effect on the growth of oysters. In addition, it is possible to save labor by lifting the cocoon from the sea according to the growth of the oysters and omitting the work of dispersing it, and also eliminating the work of removing harmful organisms such as barnacles.
It is said that the culture method using this clasp is said to filter a large amount of seawater of about 5-12 ℓ per hour, especially for oysters to take in food. In order to meet the conditions that are suitable and the culture method using the floating oyster dispersion-type latching device of the present invention properly satisfies the conditions that promote growth, it is possible to achieve oyster culture that is very well-closed is expected.
Compared to excessively dense aquaculture, aquaculture using the latching device of the present invention has a high degree of freedom due to the floating of oysters themselves, so high seawater temperature and salinity that may occur during dense aquaculture. It is expected to avoid the risk of death due to water pollution, parasites and diseases.

  Oyster culture fasteners or oyster culture fasteners are stable without deformation, distortion, breakage, etc., and can be rolled, bobbins can be stably wound, transported, stored and handled. Is easy. In addition, the latch can be fixed to the bus bar such as a rope easily and easily by insertion or the like, and can be fixed to the bus bar extremely stably. Moreover, it can be easily inserted into a perforated portion such as a shell top of the oyster shell. The structure and design of the belt-like latching device reduces wasteful material consumption, and when the fixing member is a C-shaped pin holding portion, the remaining protrusion of the connecting member not only plays a role for connection but also oysters. It plays a multi-functional role such as preventing the latch from shifting from the bus bar. As a result, it is possible to drastically prevent the detachment of cultured oysters such as oysters, which has an excellent effect in terms of high yield and cost. This oyster hook is not only suitable for the cultivation of oysters whose shell shape is susceptible to the environment, but can be inserted into various cultured shells such as scallops, pearl shells, clams, clams, etc. It has the possibility of being widely applicable as a latch.

It is a schematic diagram showing the outline | summary of the latch for oyster culture of this invention. FIG. 1 (a) is a front view showing an oyster culture latch constituted by an elongated resin-made long root trunk that can be inserted into pores opened in an oyster shell. [FIG. 1 (b)] A plan view showing a locking device for oyster culture. [FIG. 1 (c)] It is an enlarged view of the front view by partial cutting of the oyster culture latch. It is a schematic diagram which shows the aspect of the member for fixing for fixing to the rope of the oyster shell insertion type latch for culture | cultivation of this invention. As a fixing member, a pair of bus bar restraining protrusions 3 and 3 having a shape in which the roots of the hooks are passed through the ropes, and the tip portions having a sufficient interval sandwiching the bus bars from the vicinity of the center of the root shaft are inclined toward the center side. A structure where 'is provided symmetrically.

It is a schematic diagram which shows the aspect of the member for securing the shell of the latch of this invention. [FIG. 3 (a)] FIG. 3A is a schematic diagram showing a typical shell fixing protrusion constituting the retaining member. [FIG. 3B] FIG. 3B is a schematic view showing another aspect of the shell fixing protrusion constituting the retaining member. It is a schematic diagram in case the root 1 of the latching device of the present invention is inserted into the oyster shell S. [FIG. 4 (a)] FIG. 4 is a schematic view of a state in which the shell fixing protrusions 21 and 22 pass through the oyster hole when the root (base material) is inserted into the oyster hole. [FIG. 4 (b)] FIG. 4B is a schematic diagram showing a recovered state after the shell fixing protrusions 21 and 22 have passed through the oyster hole when the root (base material) is inserted into the oyster hole. It is a schematic diagram which shows the handling state of the strip | belt-shaped hook for oyster culture of this invention. [FIG. 5A] An oyster culture band-shaped latch having a structure in which a number of adjacent latches are sequentially coupled in a strip shape in parallel through the distal end portion of the rope stopper projection 3 'and the coupling member 9. [FIG. 5 (b)] Another type of oyster-cultivating belt-shaped clasp having a structure in which adjacent clasps are connected to the tip portion 4 of the root 1 and connected in a plurality of strips in parallel through a coupling member 9. The example of an aspect is shown. It is a photograph figure which shows the state which is drooping culture of oysters using Tegs. It is a schematic diagram which shows the position of the oyster hole H drilled in the oyster S for culture | cultivation. It is a schematic diagram showing a state in which a predetermined amount of rope R, in which a large number of oysters are hung by the latching device of the present invention, is attached to a fixture Y such as a pile, a tower, a beam, and a cage and cultured in the sea.

The details of various embodiments of the basic oyster cultivation latch of the present invention will be described in detail with reference to the drawings. The latch of the present invention is a shell top as shown in FIG. It consists of an elongated resin long root (base material) 1 that can be inserted into the open pores, and a fixing member that plays a role for fixing the root to another base material in the central region of the long root trunk Specifically, one having a structure of rope stop projections 3 and 3 ′ for fixing to the rope R is recommended as a representative one.
A basic structure is that shell fixing protrusions 2 serving as at least a pair of members for preventing shell removal are disposed at locations extending from both longitudinal ends of the root 1 to the central region. Specifically, the shell-holding protrusion 2 has an aug structure composed of at least two tongue pieces arranged symmetrically in the left-right direction or vertically, or an aug structure made of one tongue piece. It is recommended to have a basic structure.
In addition, if necessary, along the long root 1, two protrusions 2 and shell-holding protrusions 5 a are arranged symmetrically at the ends. Similarly, it is also recommended to have a structure in which three of the protrusion 2, the shell stopper protrusion 5 a, and the shell stopper protrusion 5 b are arranged symmetrically along the root 1.
In this way, in consideration of the scale of aquaculture and the situation in the sea, if necessary, the shell projections 5 are arranged in multiple stages from the end toward the central area, such as 5a, 5b, 5c, 5d. It is possible to provide a locking device for oyster cultivation in which a plurality of ag structures composed of at least one or, if necessary, two tongue pieces are arranged in multiple stages in a symmetrical manner. Whether to use one or two tongue pieces is a matter to be arbitrarily designed in consideration of the state of seawater at the aquaculture site.
Depending on the aquaculture scale and situation, a tongue-shaped double aug structure is most suitable as the shell stopper protrusion 2 or protrusion 5 that functions as a member for stopping shell removal. Structure.
Specifically, a root 1 that is an elongated base material that can be inserted into the rope R and the oyster shell hole H, a shell stopper protrusion 2 that is a shell retaining member, and a rope stopper protrusion 3 that is one of fixing members. These are installed structures, and these are formed by integral molding or secondary processing with resin.
Both the shell stopper protrusion 2 and the rope stopper protrusion 3 are structured to protrude to the outside of the base 1 that is the base material. The shell stopper protrusion 2 has a tongue piece shape on the one end 4 side in the axial direction of the base material 1. Suitable is a latch machined to have a pair of arcs of arbitrary radius of curvature r outwardly from the center of the substrate.

The length of the resin-made long root (base material) 1 can be arbitrarily determined as 5 to 80 cm, preferably about 5 to 35 cm, depending on the culture scale of oysters, but in consideration of handling and productivity. Considering the scale of commercial aquaculture, the range of about 10 to 22 cm is ideal. In FIG. 1 (a), the length of such a root 1 is an example of three stages with shell stopper protrusions 2, 5, 5a, but arbitrarily multistage such as one stage, two stages, three stages, and four stages. In addition to being able to be installed sequentially, it is necessary to have sufficient strength to withstand the pulling of oysters. The interval between the shell-fixing projections 2 and 5a, the interval between 5a and 5b, and the interval between 5b and the projection 3 are usually about 2 to 12 cm, but are arbitrarily determined in consideration of the number of cultured oysters attached and the size of oyster growth. Although it is a range of design items to be determined, it is expected to function reasonably if there is a distance of about 2 to 4 cm.
The end portion 4 of the root (base material) 1 is preferably a protrusion 4 having a tapered shape as shown in FIG. 2 so that the end portion 4 can be easily inserted into the oyster hole H. Preferably, the projections have any shape, circular, elliptical, conical.

The diameter (diameter) of the long root trunk (base material) 1 is designed in consideration of the strength of the synthetic resin material and the cultivation scale. Although it may vary depending on whether it is an ellipse, a regular square, or a long square, the maximum diameter is preferably about 1.5 to 10 mm, and preferably about 2 to 5 mm on average. This is because, in consideration of the balance of dynamics, the central region of the long root (base material) 1 is slightly thickened, the cross-sectional area is increased, and the thickness is gradually reduced toward both ends. It is recommended to design to reduce the area. In addition, it is preferable to devise a structure that can be dynamically handled by devising the cross-sectional shape of the root 1 to be circular, elliptical, or the like. However, the oyster hole H is often formed in a circular shape by perforation, and in order to meet this, it is preferable to make the cross section of the root circular. In particular, if the cross section of the area of the fixing member to the rope of the root 1 is designed to be rectangular, unnecessary rotational movement of the root can be suppressed when inserted into the rope, Since the mechanical strength can be improved slightly, these are within the scope of the design items.
More importantly, it is preferable to reduce the burden on the oysters by making the hole diameter of the oyster holes H formed on the shell top as small as possible. In that sense, the shape of the cross section of the root 1 is devised, or the material of the resin long base (base material) 1 is based on resin or plastic material, but is strengthened by stretching orientation, strengthened by heat treatment, fiber, By using a reinforced material reinforced by an insert or the like, it is preferable to make the material thin and strong.
In addition, in order to reinforce the section-like projections of the ag structure, not only a strong reinforcing resin is selected, but the root 1 is strengthened in advance by stretching orientation, and the root 1 is reinforced by cutting. A method of forming a reinforced protrusion by forming a section-like protrusion by subsequent processing is also recommended.
Production of the oyster cultivation latch of the present invention can be made by conventional integral molding, such as injection molding, cast molding, etc., but long roots (base material) such as cutting and welding in advance It can be made with secondary processing.

  Many materials such as metal, aluminum, plastic, and wood are used as the material for forming the oyster-cultivating latch, but in general, plastic is most suitable. Plastic materials include polyethylene, polypropylene, polyacetal, polycarbonate, polyester, polysulfone, polyphenylene sulfide, polyarylate, polyamide, polyvinyl chloride, biodegradable plastic, bioplastic, natural resin, and other general-purpose plastic materials that are strong and durable. It is used in consideration of circumstances such as water resistance, reprocessing property, non-toxicity, and price. In particular, any material belonging to the category of engineering plastics can be used arbitrarily, and is not limited to these exemplified plastic materials. In particular, a polyamide resin such as nylon is suitable in terms of durability, moldability, and price. This is a material readily available under the trade name of nylon 6, 66, 11, 12, 46, 610. Nylon 11 and 12 have low water absorption and are suitable for seawater hooks.

  The fixing member installed in the central region on the root trunk (base material) 1 that constitutes the oyster farming clasp according to the present invention starts from the vicinity of the center of the root trunk as shown in FIGS. A pair of tip portions having a sufficient interval (W) sandwiching the busbar R moderately and having an inclination angle (θ) of about 20 to 90 degrees, preferably about 20 to 30 degrees on the center side. As shown in FIG. 2A, the “C” -shaped busbar restraining protrusions 3 and 3 ′ are provided symmetrically. An insertion-type hook that attaches the hook to the bus bar by passing through the center can be cited as a representative structure.

However, this fixing member has the best basic structure as shown in FIG. 2, but as an application example, it is slightly inferior in mounting strength. For example, the fixing member is substantially L-shaped at intervals of holding the bus R. The gripping hand 33 and the gripping hand 33 ′ are installed on the root 1 as a pair, and a so-called gripping-type latching device in which the latching device is arranged in a pair and bites into the bus bar may be used. it can. The tip of the L-shaped gripping hand may have a structure such as an arrow, which is a barbed or auged structure so that it does not easily come out even if it bites into the bus bar.
Similarly, as an application of FIG. 2, this fixing member is, for example, a substantially L-shaped traction hand 35 installed on the root 1 on a hooking ring such as a teg or a string tied through a bus R. , 35 'can be installed symmetrically, and a ring can be inserted into the gap where both pullers come into contact, and the hook can be suspended from the busbar by the structure where the hook is installed. It is possible to hook even a clip structure constituted by a single elastic substantially semicircular traction hand 35, which can be collectively referred to as a hanging type latch. If necessary, a plurality of the rings can be attached at appropriate intervals in the length direction of the bus bar, and a plurality of predetermined latches can be arbitrarily attached to the bus bar.
FIG. 2 is a representative example of the fixing member mentioned above, but it is also possible to adopt various known structures having the functions and functions of a conventional known fixing member if necessary. .

A typical agitation structure of the shell fixing projection 2 constituting the latching device for oyster culture of the present invention will be described with reference to FIG. The tip is slightly narrow and sharp to facilitate insertion. As shown in FIG. 3A, the root 1 has a structure in which a single tongue-shaped upper ag 51 is installed, and in some cases, a lower ag 51 ′ (not shown) is opened symmetrically. The mooring function can be enhanced by configuring the shell retaining protrusion 2. Similarly, as shown in FIG. 3 (b), it is possible to adopt a state in which two tongue pieces 21 and 22 are provided on the upper and lower sides and the right and left sides. In this way, the number of tongue pieces is one, two, and how many ag structures are used, and the installation location is within the range of design matters.
The width of the tongue-shaped ag is determined by the diameter of the root 1, but the length from the tip to the trunk can be arbitrarily designed in the range of about 0.5 to 15 mm. The shape of the tongue may be a simple upright projection, but it is preferable to have a structure having an arbitrary curvature radius r (for example, r: 3 to 5 mm) as shown in FIG. 4B, for example. . When the shape of the tongue-shaped ag that forms the shell stopper projection 2 is formed to form an arc of radius r that is gradually curved from the outer surface of the root 1, if a force acts so that the shell can be removed, The shape of the tip of the piece-shaped ag is such that it immediately stands up in a direction away from the root 1 and prevents the shell from coming off.
If the tip of this ag falls to the root 1 side, the oyster hole H of the oyster shell will easily pass through and escape.

Shell fixing protrusions 5a and 5b are provided at intermediate positions where the shell fixing protrusion 2 which is a member for preventing shell removal of the present invention has a shape of a radius of curvature and an arbitrary pair of curvature radii. A structure can be designed.
Such a structure of the shell-fixing projection formed of one tongue piece 5a, 5b having a tongue-like shape is significant when installed in the center direction of the second and third steps and the root 1. The structure of the symmetrical shell stop protrusion 2 in which the tongue-shaped augs are paired is suitable for firmly stopping the shell when placed at both ends of the root 1.
For example, it has the same axial cut as the root 1 and has a structure consisting of two elongated strips whose top part is shifted up and down or left and right with the cut as a boundary, or a simple tongue piece without a cut, Various forms such as a T-shape can be designed.
In the place where the ag is arranged, inclined parts 6 and 7 are formed as shown in FIGS. This is to design the diameter of the shell hole H to be relatively small by inserting the portion of the shell-holding protrusion 2 into the shell hole so that the tongue-shaped ag is inclined toward the root side and the protrusion of the ag is lowered. In addition, when the shell is suspended, it has an advantageous function of providing a place to be stably moored in a depression at a low place.

  The latching device of the present invention will be described with reference to FIG. 4 in a state where the shell projection is inserted into the hole of the shell S. When the root 1 is inserted into the hole of the shell S, the tongue has a curved surface. Are easily bent to the root 1 side, the diameter is reduced, and the passage of the shell is facilitated by smooth contact with the tongue-like curved surface. Since the tongue-shaped ag 21 and 22 of the root 1 that has passed through the hole recovers and stands by elasticity, the shell S is prevented from coming off. In order to reduce damage to oysters, it is recommended to make the diameter of the shell hole to be drilled as small as possible, so that the latch of the present invention functions reasonably. In this sense, it is natural for that purpose that the maximum outer diameter of the folded ag structure is smaller than the outer diameter of the root inserted into the oyster shell hole.

The latching device of the present invention is a plurality of serially connected oyster cultures in which the end 4 of the root 1 is connected to the adjacent root 4 ', which is compact for convenient storage, transportation, handling, setting, etc. It can also be used with hooks.
However, as shown in FIGS. 5 (a) and 5 (b), for the convenience of transportation, storage, shell set, etc., and in order to achieve rational molding, the adjacent oyster culture hooks A band-shaped hook for oyster culture in which a plurality of fasteners are connected in parallel in a strip shape using a rope stopper projection 3 and at least one connecting member extending in a direction perpendicular to the longitudinal direction of the root. It is reasonable to do.
Furthermore, to illustrate a specific connection mode, the oyster-cultivating hooks adjacent to each other are connected to each other at two points, ie, the rope stop projection 3 and the rope stop projection 3 ′, as shown in FIG. 5 (a). As shown, the method of connecting at two points of at least one connecting member 9 extending in a direction perpendicular to the longitudinal direction of the root and the tip connecting member 3 "of the rope stop projection 3 'as a fixing member is stabilized. Further, it is possible to connect the rope fixing protrusions 3 and 3 ′ by a plurality of connecting members 9 at at least two points.
Of course, it is possible to arbitrarily change the design matters such as a method of connecting the shell fixing protrusion 2 and the rope fixing protrusion 3 at least at two points using the connecting member 9.

Similarly, as shown in FIG. 5B, connecting the end 4 of the root 1 with the connecting member 9 is also recommended as a very stable connection method.
These oyster culture strip fasteners are stored separately, or are stored, transported and set in the form of oyster culture strip fasteners in strips, in rolls and in bobbins. It works in an advantageous manner.
The connection interval of the latches in which a plurality of adjacent latches that are arranged side by side in parallel with a certain interval are successively connected in a strip shape is, for example, 5 to 20 mm, preferably 2 to 2 mm. Adjacent in parallel with an interval of about 8 mm. The number of connections depends on the circumstances of the aquaculture site to be supplied, but it can vary from a small amount of about 30-50 to about 100-300, in some cases about 1000-3000, and if necessary, about 5000-10000. It is a design item that can be arbitrarily determined in consideration.

  The structure of a single oyster cultivation latch according to the present invention will be described in more detail. As described above, one side or both ends 4 of the root 1 can be easily inserted into a bus bar such as a thin string, a rope, or a rope. In addition, it is recommended to have a sharp end structure with a diameter slightly narrower than the diameter of the central portion of the root 1 such as a conical shape or a round shape. This sharp end structure facilitates insertion into a hole drilled in the top of the oyster shell and contributes to increasing the efficiency of the oyster shell installation work. Various ag structures such as a single ag and a double ag that have a tongue-shaped ag part structure at a position slightly closer to the center part from the end of the root 1 toward the center. It is a slip-off prevention portion having tongue-shaped shell stopper protrusions (2) and (2 ′).

When oysters are cultivated, the oyster is a bivalve made up of a lid shell and a shell, and when pierced, it is preferable to form an oyster hole H at the position of the shell top shown in FIG.
In general, in the case of culturing by piercing a hole in the top of the shell, which is the end of the shell that has no direct effect on the living body of oysters, and suspending it in the sea through a hook, The hole diameter must be such that cracks and defects do not occur around. Depending on the size of the oysters in the case of oysters, the diameter of the hole to be drilled is about 1.2 mm to 4.0 mm, usually about 1.5 mm to 3 mm is appropriate. In addition, the diameter of the resin base 1 of the oyster hook inserted therein is also in the range of about 1.1 to 3.5, preferably about 1.5 to 2 mm in the case of the general-purpose standard size. It is reasonable to be made of synthetic resin.

To obtain cultured oysters, scallop shells were submerged in the sea as seedlings, and when oyster larvae adhered, the oyster seeds were transferred to coastal shelves to control oyster growth and become an oyster that is resistant to environmental changes. However, it is recommended to use the oysters after the stage of growing by transferring the oysters attached to the scallops for collecting seedlings to create a hanging series. It is known that the drooping series usually hangs with 20 to 50 scallops alternately connected to one line. In the case of using this pile hanging method or drooping type larvae for aquaculture, the stage that has grown to a size that can be handled as oyster oysters to some extent by passing through the drooping cultivation stage slightly It is recommended that the oysters in the state where the oysters are attached to the scallop shells for seedling with a fixing material are peeled off and used as aquaculture oysters.
In addition, as oysters for aquaculture, oysters that have grown to some extent by attaching to stones and rocks of tidal flats, oyster oysters that have been grown to some extent by attaching oysters to trees and bamboo, and of course, can be used. Oyster nymphs grown on tidal flat sand can be used.
Oysters tend to grow into a round shape or a long shape depending on the environment in which they grow, so for example, in the oyster breeding method in a dense situation, as shown in the photograph Fig. 6, it is a fruitful comparison. Because it is impossible to harvest ideal oysters that are large and have good shell shape, if possible, the timing is important for growing oysters to harvest ideal oysters with high commercial value. The fasteners contribute to such ideal growth. Of course, the oyster hook of the present invention can be applied as a hook for hanging the oysters attached to the scallops as it is, but harvests oysters with good shell value. There are risks associated with doing this.

FIG. 8 shows a state in which the oyster-cultivating clasp of the present invention is specifically used to suspend the oyster and place it in seawater. In consideration of the scale and strength of the support Y, the rope R can be hung on the support Y such as a pile, a frame, a beam, a tower, or a fence with an interval of about 5 to 30 cm. The upper and lower intervals of the hooks hung on the rope are arbitrarily arranged in about 1 to 20 steps with an interval of about 10 to 30 cm in consideration of oyster growth. This state is to be designed arbitrarily according to the scale of aquaculture, sea culture climate, topography and environment.
It is possible to cultivate by hanging a lot of ropes using the hooks of the present invention on the fence.
In particular, if the amount of seawater that oysters filter is 10 ℓ / h, for example, if you consider the amount of plankton that oysters can obtain, the natural environment is irregular seawater, It is difficult to reproduce and analyze quantitatively, but if an example of filtering 1 m ³ seawater is analyzed, the filtration and absorption of plankton is inefficient in the case of the oyster dense type shown in FIG. It is expected that oysters may filter the same seawater. This clearly affects the growth of oysters.
Furthermore, the effects of high seawater temperature, water pollution, parasites, diseases, etc., which can be said to be the cause of oyster mortality, are compared to the dense type shown in FIG. If so, it is very advantageous that the risk is much lower.
In addition, oyster shells and growth patterns that are seen in oyster farming are influenced by the environment, and oysters are unique in that the distributed farming shown in Fig. High oyster culture can be achieved.

  Hereinafter, although evaluation about the effectiveness of the present invention will be described with reference to examples, the present invention is not limited to this embodiment.

(Making a single piece of oyster farming hook of the present invention)
The shape of the oyster cultivation latch of the present invention, the length of the root 1 is 200 mm, the average thickness is about 2 mm, and the center of the root is 20 mm apart (distance of the protrusion mounting portion), Rope stopper protrusions (length 5 mm, width 1.5 mm, thickness 1.5 mm, angle 30 degrees) are symmetrically provided. At both ends of the root 1, there are shell-holding projections made of two tongue pieces in the form of tongue pieces (length: 3 to 5 mm, width: 1.2 mm). Forming a oyster culture clasp that has two lug protrusions symmetrically arranged on the root trunk in the middle of the root rope stopper protrusion and shell stopper protrusion. A large number of molds are prepared.
Based on a conventional molding method, this metal mold can be cast using nylon 11 as a resin material to mold an oyster culture latch.

  As an application example, a large number of oyster-cultivating clasps formed in this way, particularly clasps in which the root length is slightly smaller than the original dimensions, are manufactured in advance. Then, use water, oil, air, etc., preferably liquid, and immerse in a thermostatic chamber heated to a temperature of about 110 ° C. to such an extent that the molding resin employed undergoes molecular motion for about 2 to 5 minutes. And preheat. After that, if it is stretched and oriented to about 1.5 to 2 times, and it is cooled rapidly after it is made into a predetermined size, it is possible to obtain a latch with particularly improved tensile strength and flexibility. it can. Of course, it is recommended to extend the structure of the agglomerate in which the ag structure is formed in advance, but as another aspect, the ag tongue piece is formed by secondary processing after extending the root of the hook. By doing so, the strength of the tongue will be a product with a corresponding strength.

(Underwater rocking test)
(A) A rope with a diameter of about 7 mm is inserted through the root of a hook for oyster culture, and the shell protrusions at both ends of the hook are made by punching a commercially available oyster with a diameter of about 2 mm. Used as a test oyster.
Three stages are attached to the rope at intervals of 20cm, and the oysters are grown for a certain period of time in March, June, and December after the so-called simple pile drooping method. It is possible to observe the growth status and the presence or absence of dropout.
This is suspended in seawater, and is sometimes left and left for about 24 hours with occasional vertical movement on the rope.
As a result, in the case of the oyster dispersion type of the present invention, there is no omission of the improved oysters against changes in the state of the ocean current, changes in the situation due to oyster growth, etc. Since it is predicted that no mortality will occur and the growth is smooth, its usefulness is expected.

Offering products that can be applied to oysters or other cultured shells such as scallops and pearl shells by providing economically inexpensive and high-performance oyster hooks (pins) at oyster farming sites It has contributed significantly to the development of fisheries farming and local industries.
Moreover, the operation of attaching the pins to the oysters has become very simple, and labor saving for the fishermen has been achieved. In addition, the pin can be easily attached to the shell, and it can be attached stably and stably for a long time without falling off, contributing to less detachment of the shell, and the fields of aquaculture, fisheries and fisheries. It contributes to the progress of
The oyster latching device according to the present invention is a oyster-cultivating latch that can be removed from the latch relatively easily when the oysters are collected after the cultivation, and the debris of the latch is attached to the bus bar R such as a rope. The risk of remaining or leaving and environmental pollution and the harm of marine life is very low, so it is expected to contribute greatly to the development of the oyster farming industry.
In addition to oysters, it has the potential to be applied to various cultured shells such as scallops and pearl shells.

H Oyster hole R Bus bar S Oyster shell Y Pile, frame, coffin or support r Curvature radius 1 Base (base material)
2,2 ', 21,22 Shell stop projection (prevention member, ag)
3, 3 'Rope stop projection (fixing member)
3 "tip connecting member 4 base material end 5, 5a, 5b, 51 shell stopper projection (prevention member, ag)
6 Inclined part 7 Inclined part 9 Connecting member

JP-A-56-102744 JP-A-4-71436 Japanese Patent Laid-Open No. 9-149741 JP-A-8-196162 Japanese Patent No. 3786285 Japanese Patent No. 4765576 JP 2003-52270 A JP 2003-289743 A

Claims (10)

  It consists of a long and thin resin-made long stem that can be inserted into the pores opened in the oyster shell, and has a fixing member for fixing the root to another base material in the central region of the long root. A locking device for oyster culture, characterized in that at least a pair of shellfish retaining members are sequentially provided along the long roots in the longitudinal direction at both end regions.   A pair of bus bar restraining protrusions with a shape in which the tip part with a sufficient interval sandwiching the bus bar starting from the vicinity of the center of the root axis is inclined on the center side is provided symmetrically on the root of the fixing member. The latch for oyster culture of Claim 1 characterized by the above-mentioned.   2. The oyster culture latch according to claim 1, wherein the fixing member is provided with a pair of holding structures on the root that have a sufficient interval to sandwich the busbar from the vicinity of the center of the root. Ingredients.   The hook for oyster cultivation according to claim 1, wherein a hook is installed near the center of a long root of the fixing member.   A pair of shell-holding members are arranged in a symmetrical manner sequentially with 1 to 5 ag structures with a constant spacing from the end toward the center along the long roots. The locking device for oyster culture according to claim 1.   6. The oyster-cultivating hook according to claim 5, wherein the maximum outer diameter of the ag structure is smaller than the outer diameter of the root inserted into the oyster shell hole.   The oyster culture latch according to any one of claims 1 to 6, wherein the adjacent oyster culture latches extend in a direction perpendicular to the longitudinal direction of the trunk. A strip-shaped hook for oyster culture, characterized in that it has a structure in which a large number of strips are sequentially connected in parallel via a band.   A plurality of adjacent oyster-cultivating clasps are sequentially arranged in parallel via at least one connecting member extending in a direction perpendicular to the longitudinal direction of the root and at least one fixing member at the tip of the fixing member. The band-like fastener for oyster culture according to claim 7, wherein the band-shaped hook is configured to be connected in a band shape.   A structure in which the ends of the oyster farming are connected in series with each other in series, or the oyster culture banding is wrapped in a roll, in a roll, or on a bobbin The strip-shaped hook for oyster culture according to claim 7 or 8, wherein the belt-shaped hook for oyster culture is stored, transported and supplied in a state of being stored. The band-shaped latch for oyster culture according to any one of claims 1 to 9, wherein the material for the band-shaped latch for oyster culture is molded from a flexible plastic material.