JP4439482B2 - Growth material - Google Patents

Description

  The present invention relates to a growth member for growing algae forming an algae field.

In order to recover the seaweed beds that have been lost due to firewood burning more efficiently, or to create a good fishing ground by creating new seaweed beds in places where there were no seaweed beds, A so-called removable algae breeding reef has been considered in which the growth member and the pedestal member are detachably attached in consideration of the function and the pedestal function for fixing to the seabed. In this detachable algae breeding reef, the algae should be constructed if the algae are initially cultured from the spores or cultivated from the young buds in the growth zone suitable for growth using the growth members, and the algae grows to some extent. The growth member is transferred to the zone and attached to the pedestal member to form a seaweed breeding reef. (See Patent Document 1).
Japanese Patent No. 3532865

  However, the growing member is often formed of concrete, and has a problem that it is inferior in mass productivity. For example, in concrete casting, the time required for molding depends on the setting time of the concrete, and therefore it usually takes about one day to manufacture one piece. Furthermore, since a considerable number of molds such as 10 to 1000 have to be used for mass production, complicated manufacturing operations have been required.

  On the other hand, when the growing member is used in a hanging type intermediate growing system or the like in which the growing member is suspended in the sea by tying the growing member in the sea and the algae is initially cultured from the spore and grown to a certain extent. Because the growth member is made of concrete, it was difficult to handle heavy.

Therefore, the growth member of the present invention is a growth member algae having a growth member body to grow by survival algae, the growth member body for attaching the algae spores or the like on the surface, an inorganic filler It has a high mechanical strength while being excellent in corrosion resistance in the sea and being lightweight .

  As a result, the growth member body can be easily manufactured by injection molding or the like, and since the curing time can be shortened, it can usually be manufactured in about 1 minute per piece and the mass productivity can be improved. . In addition, since only one mold is usually prepared, work efficiency can be improved. Furthermore, the growth member main body can be a member that has excellent corrosion resistance in the sea, is lightweight, and has high mechanical strength. Therefore, it is excellent in handleability and can be suitably used for, for example, a drooping intermediate growing system.

Specifically, it is desirable that the resin further contains fibers and the growth member body is formed by injection molding.

  In addition, in order to suppress the load on the environment, the inorganic filler contained in the growth member body is 50% by weight or more, or the inorganic filler is naturally produced inorganic filler, preferably in the sea. It is conceivable to use an inorganic filler derived from existing resources.

Furthermore, it has an operation part that can be operated in a gripped state, and a nut part for attaching to a bolt provided on a pedestal that holds the growing member main body on the seabed,
By operating the operation unit in a state in which are screwed with the bolt and the nut portion, by having a fastening device for detachably fixing the growth member body to the bolt, the attachment to the pedestal Work can be performed smoothly, and a strong mounting state on the pedestal can be maintained. In addition, by constituting the fastening device with a resin containing an inorganic filler, the fastening device can also be a member that has excellent corrosion resistance in the sea, is lightweight, and has high mechanical strength.

  In addition, by providing an attachment part for attaching a hanging tool for suspending the growth member main body in water to the growth member main body, for example, only the growth member main body is suspended in the sea, and algae is initially cultured from spores. It is possible to easily realize a method for growing algae to a certain extent.

  Furthermore, by forming protrusions on the surface of the growth member main body and attaching the seed yarn by hanging the seed yarn with algal spores attached to these protrusions, the growth member main body is attached. When the algae grows and grows, the algae can be rooted so as to hold the protrusions formed on the growth member main body, so that the algae can be stably settled on the growth member main body.

  In addition, an attachment path for attaching a suspending tool for suspending the growth member main body in water to the surface of the growth member main body at the center of the growth member main body avoiding the plurality of protrusions. By forming the suspending member, the hanging tool does not interfere with the projecting portion so that a good mounting state can be realized.

  Furthermore, in order to easily fix the seed yarn hung around the protruding portion to the growing member, the end portion of the seed yarn hung around the protruding portion on the protruding portion of the growing member main body or the fastening device It is desirable to form a notch portion to be inserted and fixed.

  As described above, it is possible to obtain a growth member body that is excellent in mass productivity and has improved work efficiency at the time of manufacture. Further, the growth member body has a smaller environmental load than a normal resin molded product. It can be a member. In addition, the growth member main body can be made a member having excellent corrosion resistance in the sea and having high mechanical strength while being lightweight. Therefore, it is excellent in handleability and can be suitably used for, for example, a drooping intermediate growing system.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  The breeding reef A employing the algal breeding member 2 of the present invention (corresponding to the “growth member of the present invention”) is used by being submerged on the sea floor. For example, as shown in FIG. Sone resource growth block 1 (corresponding to the “pedestal” of the present invention) whose main purpose is to grow and proliferate abalone, shrimp, turban shell, sea urchin and other roots from juveniles to adults, alame, Algae breeding member 2 whose main purpose is to grow and multiply algae such as black seaweed, sea bream, hondawala, etc. to form an algae field, and a stop for removably attaching the algae breeding member 2 to the root resource breeding block 1 A wearing base X, a concrete base 3 that is grounded to the seabed and supports these root-and-bone resource-growing blocks 1 and algae-growing members 2, and an intermediate mounting member 4 that is arranged between the root-and-root resource-growing blocks 1 and the concrete base 3 And increase of Sone resources Protective net device 5 for forming a root resource growth region suitable for growth and multiplication of juveniles and an algae growth region P suitable for growth and multiplication of algae in the internal space covered by covering block 1 and algae growth member 2 And a through-hole member 6 that can be attached to and detached from the through-hole provided in the concrete base 3. Hereinafter, each part is demonstrated concretely.

  As shown in FIGS. 1 and 2, the Sone resource breeding block 1 has a shape in which a regular square pyramid having a substantially square shape whose lower surface is smaller than the upper surface is continuously integrated under a substantially square plate in plan view. The main body 11 is made of a concrete block. And the algal growth member 2 is set to the upper surface so that attachment is possible. In addition, the other roots resource multiplication block 1 can also be attached to the said upper surface. In addition, an anchor bar 12 to be inserted into a block mounting portion (not shown) of the concrete base 3 is embedded in the lower end portion of the main body portion 11 so as to protrude vertically downward. That is, the root resource breeding block 1 is fixed to the concrete base 3 via the intermediate mounting member 4 by the structure in which the anchor bars 12 are hooked on the spring washer in the block mounting portion. Further, a hemispherical protrusion 13 is formed at the upper end of the main body 11 so as to protrude toward the adjacent root root resource breeding block 1, and the adjacent main body 11 directly collides with the protrusion 13. Prevents chipping and cracking. The protrusion 13 also has a function of preventing the root resource breeding block 1 pivotally attached to the block attachment portion 34 from rotating in the horizontal direction and a function of positioning the adjacent root resource breeding block 1. ing. In addition, a plurality of (four in the illustrated example) stainless steel bolts 14 are embedded in an upright posture on the upper surface of the main body 11 so that the algal growth member 2 can be detachably attached.

  As shown in FIG. 2, the algae growth member 2 includes an algae growth member main body 21 (corresponding to the “growth member main body” of the present invention) for growing algae, and algae grown on the algae growth member main body 21. And a rooting spacer 22 having a rooting portion 221 for rooting the root, and the weight 22 for holding the rooting spacer 22 on the seabed P and the algae growth member main body 21. It is set as the structure interposed so that attachment or detachment is possible between the soot resource multiplication blocks 1 which have an anchor function as a lion.

  The algae breeding member main body 21 is formed so that the top surface has irregularities having a reverse gradient, which is a shallow irregular shape imitating the shape of gravel, and the seaweed B0 such as arame is easy to settle by holding the irregularities at the roots. Specifically, as shown in FIG. 2, a plurality of protrusions 212 are formed on the surface of a thin plate-like base material portion 211, and seaweeds B0 such as arame are formed on these protrusions 212. It has a configuration in which a seed yarn Y to which a spore, a zoospore, a honda larvae, or the like is attached is wound around and attached.

  Further, as shown in FIG. 4, the algal growth member main body 212 is suitable for a suspended intermediate growth system that hangs the seed yarn Y around the surface and cultivates the seaweed B0 by suspending it in the sea. As shown in FIG. 5, an attachment path 213 for attaching a rope H1 constituting a hanging tool H for suspending the algae growth member main body 21 in water on the surface thereof to the surface of the algae growth member main body 212; 214 is formed, and a hanging tool attaching portion 215 for attaching the algal growth member main body 212 to the hanging tool H is provided.

  The protruding portions 212 are raised portions that are partially raised so as to form a convex shape on one surface of the base material portion 211, and a plurality of protruding portions 212 are provided at positions avoiding the contact paths 213 and 214. Further, as shown in FIG. 6, the protrusion 212 is provided with a first notch 212 </ b> A for inserting and fixing the end of the wound seed yarn Y.

  The first notch 212A is provided in the vicinity of the base end of the protrusion 212, and is formed by cutting a part of the protrusion 212 from the outer peripheral surface side of the protrusion 212 toward the center. Yes. The seed yarn Y wound around the projection 212 from the opened outer peripheral surface side is inserted toward the center of the projection 212 so that the end of the seed yarn Y can be fixed.

  As shown in FIG. 4, the attachment paths 213 and 214 are portions on the planar surface of the algae growth member main body 21 provided in the central portion avoiding the plurality of protrusions 212, and the algae growth member main body 21 is When the suspended rope H1 is suspended in the sea while being attached to the attachment paths 213 and 214, the rope H1 is passed along the surface in the width direction. In the present embodiment, a first attachment path 213 and a second attachment path 214 that are orthogonal to each other at the center position of the algal growth member main body 21 are formed.

  The hanging tool attaching portion 215 is an attaching portion for attaching the algal growth member main body 21 to the hanging tool H. In the present embodiment, the position where the first attachment path 213 and the second attachment path 214 intersect, that is, the diameter of about 2 CM penetrating in the thickness direction at the substantially central portion of the algal growth member main body 21. It is a through hole, and the alga breeding member main body 21 can be attached to the hanging tool H by passing the rope H1 through the through hole.

  Moreover, the said suspending tool attaching part 215 also has a function as an attaching part for attaching the said algae growth member main body 21 to the Sone resource multiplication block 1. FIG. Specifically, the fastener X and a rubber elastic body having a thin ring shape in a state where the bolt 14 provided on the root resource breeding block 1 is inserted into the through hole which is the hanging tool mounting portion 215. (Not shown) is used to detachably fix the algae growth member main body 21 above the root resource growth block 1.

  Therefore, in the case of this embodiment, the hanging type intermediate breeding system which suspends the algae breeding member main body 21 on the rope H1 using the hanging tool attaching part 215 is adopted, and the seaweed B0 is the seaweed B0 on the seabed. Growing until the seaweed B0 reaches 3 to 10 CM by visual inspection, which is a size that is less likely to cause damage caused by herbivores such as sea urchins, snails, sea slugs, that is, a size that can secrete bitter components such as fluorotannin. The algae growth member main body 21 is pulled up from the sea, and the algae growth member main body 21 is detachably attached to the bolts 14 of the root resource growth block 1 with a rooting spacer 22 interposed.

  The rooting spacer 22 is used to secure the rooting part 221 necessary for spreading the roots of the algae grown on the algae growth member body 21 by the hanging intermediate growth system. 21 and the above-mentioned root resource breeding block 1 are separated from each other, and like the algal breeding member main body 21, a through hole having a diameter of about 2CM penetrating in the thickness direction is formed in the substantially central part, The bolt 14 provided on the root resource growth block 1 is inserted into the through hole so that it can be attached and detached between the algae growth member main body 21 and the root resource growth block 1 using the fastening device X. Fixed. Further, the size and weight (about 1.5 KG) that can be handled by hand with the rooting spacer 22 are improved, so that handling and maintenance for transportation and maintenance are improved.

  Specifically, as shown in FIGS. 3 and 6, the rooting spacer 22 is a concrete cylindrical member having a vertically and horizontally symmetrical shape, and is substantially the same planar shape as the lower surface of the algal growth member main body 21. An upper surface, a side peripheral surface forming the rooting portion 221 provided continuously with the upper surface, and a lower surface provided continuously with the side peripheral surface.

  In addition, in a state where the spacer 22 for rooting is fixed between the algae growth member main body 21 and the root root resource growth block 1, the upper surface of the rooting spacer 22, the lower surface of the algae growth member main body 21, the root Since the lower surface of the tension spacer 22 and the upper surface of the soot resource breeding block 1 are in contact with each other, the upper and lower surfaces of the root tension spacer 22 and the algal breeding member main body are taken into consideration in consideration of mounting properties (sitting when attached). The lower surface of 21 and the upper surface of the Sone resource breeding block 1 are flat surfaces.

  The rooting part 221 grows algae on the algae growth member main body 21 with a hanging intermediate growth system, and then spreads the roots of the algae grown on the algae growth member main body 21 to be rooted in the algae growth member 2. For this purpose, the algae growth member main body 21 is formed so as to be continuous with the algae growth surface (upper surface) provided on the algae growth member main body 21 without any step.

  As shown in FIG. 3, the fastening device X includes an operation portion X2 that can be operated in a gripped state and a nut portion X3 that is attached to the bolt 14 provided in the root resource breeding block 1. By operating the operation part X2 in a state where the nut part X3 and the nut part X3 are screwed together, the algal growth member main body 21 and the rooting spacer 22 are detachably fixed to the bolt 14.

  More specifically, it comprises a substantially disc-shaped pedestal portion X1 and an operation portion X2 provided on the upper surface side of the pedestal portion X1. Moreover, as shown in FIG. 6, in the vicinity of the base end of the operation part X2, a second notch part X21 for inserting and fixing the end part of the seed yarn Y hung around the algae growth member main body 21 is provided. Provided. Specifically, a part of the operation portion X2 is cut away from the outer peripheral surface side of the operation portion X2 toward the center. Then, the seed yarn Y hung around the protrusion 212 from the opened outer peripheral surface side is inserted toward the center of the operation portion X2 so that the end portion of the seed yarn Y can be fixed.

  The operation part X2 includes a substantially columnar standing part X23 that stands up from a substantially central part of the pedestal part X1, and a pair of thin plate-like collar parts X22 that are provided at positions sandwiching the standing part X23 and are divided into two forks. The entire operation unit X2 can be grasped and operated, or a part of the operation unit X2 (for example, one collar portion X22) can be grasped and operated.

  In the present embodiment, the nut portion X3 is formed from the back surface of the pedestal portion X1 to the substantially central height position of the upright portion X23, and can be screwed to the bolt 14 using the nut portion X3.

  Here, the material of the said fastener X and the said algal growth member main body 21 is explained in full detail.

  The fastening device X and the algal growth member main body 21 contain a naturally produced inorganic filler and a resin of a certain amount or less with respect to the total capacity.

  Specifically, since the inorganic filler has a smaller load on the environment than a normal resin, the content of the inorganic filler is 50% by weight or more (preferably 60% by weight or more, more preferably 70% by weight). Weight% or more). The content of the inorganic filler is determined in view of physical properties necessary for the obtained molded product such as impact strength. The inorganic filler may have a particle size that does not hinder molding, for example, an average particle size of several hundred μm or less.

  Furthermore, since the said inorganic filler is an inorganic filler produced naturally, especially the said fastener X and the algae growth member main body 21 are used in nature and also in the sea, the resource which exists in the sea in the said inorganic filler. It is desirable to use an inorganic filler derived from.

  Here, as an inorganic filler produced naturally, a silica powder, a calcium carbonate powder, a limestone powder, a shirasu powder, a bone stone powder, a diatomaceous earth powder, a clay powder, etc. can be considered. Examples of the inorganic filler derived from resources existing in the sea include shell powder such as oysters, scallops, turban shells, red shellfish, crushed shellfish, clams, and shiji, and coral powder.

  In addition, as an additive for improving strength, fibers such as short fibers, whiskers, fibrids, etc. excellent in mechanical properties such as elastic modulus, strength, elastic recovery rate, etc., for example, glass fibers, carbon fibers, alumina fibers , Silicon carbide fibers, whiskers such as potassium titanate and aluminum borate, metal fibers such as boron fibers and titanium fibers, organic fibers such as aramid fibers, palm, rice chaff, kenaf, hemp, cotton, silk and natto It is conceivable to mix the fibrous material derived from the fastening device X and the algal growth member main body 21.

  In the present embodiment, the resin constituting the material mixed with the inorganic filler is a thermoplastic resin that melts by heating and solidifies when cooled.

  Specifically, polyethylene, polypropylene, polyvinyl chloride, polystyrene, syndiotactic polystyrene, ABS resin, AES resin, polyamide, polyacetal, polyester, polycarbonate, modified polyphenylene ether, polysulfone, polyarylate, polyetherimide, polyamideimide, Among known thermoplastic resins such as polyphenylene sulfide, liquid crystal polyester, PEEK, PEN, paraffin wax, montan wax, carnauba wax, fatty acid ester, glycerite, modified wax and silane-modified polyolefin polymer, seawater resistance, weather resistance, Use a resin selected in view of compatibility with algae.

  Particularly preferred are syndiotactic polystyrene and AES resin.

  As a molding method for producing the algae growth member main body 21 and the fastening device X, an injection molding method, an extrusion molding method, a pressure molding method, or the like can be used, but the method is not limited to these, and is well known. A molding method can be used. In particular, in injection molding, it is possible to obtain a member that is excellent in mass productivity, is not complicated in manufacturing, and has a smaller quality variation. In addition, since it can be accurately formed into an arbitrary three-dimensional shape, a good part with excellent dimensional accuracy can be manufactured.

  As shown in FIG. 1, the concrete base 3 is a member having an anchor function for stably installing the breeding reef A on the sea floor, and includes a base body 31 and three support legs 32 integrally formed of concrete. The basic composition is what is composed.

  As shown in FIG. 1, the intermediate mounting member 4 includes a thin plate-like substrate portion 41 having a substantially rectangular shape in plan view, and four gap adjusting projections 42 protruding from the upper surface of the substrate portion 41. These parts are integrally formed of concrete.

  As shown in FIG. 1, the protective net device 5 has a columnar member 51 erected on the concrete base 3, a protective net 52 that is attached using the columnar member 51, and the protective net 52 is fastened to the columnar member 51. A fastener 53 is provided. Note that a part of the protective net 52 and the fastener 53 in the figure are omitted for convenience of drawing. Hereinafter, each part will be described more specifically.

  The protective net 52 is made of a synthetic fiber having flexibility, and as shown in FIG. 1, an upper surface net 521 having substantially the same size as the surface connecting the upper ends of the four columnar members 51. A total of four standing nets 522 arranged between the adjacent columnar members 51, and each side of the upper surface net 521 and each side of the upright net 522 adjacent to each side of the upper surface net 521, It is the single thing which continued.

  Then, the mesh size of the upper surface mesh 521 is set to a size that does not allow the passage of algal food fish such as Aigo, Isuzumi and Budai. In addition, the standing net 522 is configured to have two upper and lower stages, and the lower mesh size is set to a level that can prevent the passage of juveniles and prevent the invasion of carnivorous marine animals such as starfish and octopus. On the other hand, the mesh size on the upper side is set to a size that prevents the algalivorous fish from passing through while expanding the mesh size on the lower side. Furthermore, silicon is applied to the entire protective net 52 in order to prevent deposits such as barnacles and shellfish from adhering to the protective net 52.

  In this embodiment, a so-called insulation lock type binding band is used as the fastener 53. The fastener 53 is made of a general synthetic resin so that it can be cut using a tool having a blade part such as a cutter knife or a scissors.

  As shown in FIG. 1, the through-hole member 6 includes a rigid frame body having a substantially rectangular shape in plan view, and a synthetic fiber net portion having a peripheral portion supported by the frame body. The mesh size of the through-hole member 6 is set to such an extent that the passage of the young body can be prevented. In the present embodiment, silicon is applied to the entire through-hole member 6 in order to prevent deposits such as barnacles and shellfish from adhering to the through-hole member 6.

  Next, a method for attaching the algae growth member 2 to the root resource growth block 1 will be described.

  The protective net 52 is partly or entirely removed from the columnar member 51, and the description will proceed assuming that the operator can easily access the algae growth member 2 and the root resource growth block 1. .

  First, as shown in FIG. 4, after algae is grown on the algae growth member main body 21 by a hanging type intermediate growth system, the algae growth member main body 21 is pulled up from the sea and the algae growth member is suspended from the hanging tool H. The main body 21 is removed. Then, as shown in FIG. 2, the algae growth member main body 21 is penetrated with the rooting spacer 22 interposed between the bolts 14 of the root resource growth block 1.

  Thereafter, the fastening device X is fitted onto the bolt 14 from above the algae growth member main body 21, and the fastening device X is turned using the operation portion X2 of the fastening device X to be tightened, whereby the bolt 14 and the nut portion X3. And the algal growth member main body 21 can be fixed in a state where the rooting spacer 22 is interposed in the sock root resource growth block 1.

  By realizing the configuration of the algae growth member 2 as described above, the algae growth member main body 21 can be easily manufactured by injection molding or the like, and the curing time can be shortened. It can be manufactured in about a minute, and mass productivity can be improved. In addition, since only one mold is usually prepared, work efficiency can be improved. Furthermore, the algae growth member main body 21 is excellent in corrosion resistance in the sea, and can be a member having high mechanical strength while being lightweight. Therefore, it is excellent in handleability and can be suitably used for, for example, a drooping intermediate growing system.

  In addition, the inorganic filler contained in the algae breeding member main body 21 is 50% by weight or more, and further, the inorganic filler is made of an inorganic filler derived from resources existing in the sea, thereby suppressing environmental load. Can do.

  Furthermore, it has the operation part X2 which can be operated in the state of grasping, and the nut part X3 for attaching to the bolt provided in the root resource breeding block 1 which holds the said algal growth member main body 21 on the seabed, The said nut part By providing the fastening device X that removably fixes the algae growth member main body 21 to the bolt by operating the operation portion X2 in a state where X3 and the bolt portion are screwed together, The attaching operation to the resource breeding block 1 can be performed smoothly, and the strong attachment state to the soot resource breeding block 1 can be maintained. In addition, since the fastener X is made of a resin containing an inorganic filler, the fastener X is also a member that has excellent corrosion resistance in the sea, is lightweight, and has high mechanical strength. it can.

  In addition, for example, only the algae growth member main body 21 is provided by providing the algae growth member main body 21 with a suspending tool attaching portion 215 for attaching a suspending tool H for suspending the algae growth member main body 21 in water. It is possible to easily realize a method in which algae are grown to some extent by suspending them in the sea and culturing the algae from spores.

  Further, the projections 212 are formed on the surface of the algae growth member main body 21, and the seed yarn Y is attached by hanging the seed yarn Y with alga spores and the like attached to the projections 212. When the algae grows and grows on the algae growth member main body 21, the algae can be rooted so as to hold the protrusion 212 formed on the algae growth member main body 21. It becomes possible to energize the main body 21.

  In addition, a hanging tool H for suspending the algae growth member main body 21 in water is provided at the center of the algae growth member main body 21 so as to avoid the plurality of protrusions 212 on the surface of the algae growth member main body 21. By forming the contact paths 213 and 214 to be brought into contact with the surface, the hanging tool H does not interfere with the protrusion 212 and a good mounting state can be realized.

  Furthermore, notches 212A and X21 for inserting and fixing the end of the seed yarn Y hung around the protrusion 212 to the protrusion 212 or the fastener X of the algae growth member main body 21 are formed. Therefore, the seed yarn Y hung around the protrusion 212 can be easily fixed to the algae growth member 2.

  The present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention.

  For example, in the present embodiment, the Sone resource multiplication block 1 is used as a pedestal, but other rocks or the like existing in the sea may be used as the pedestal.

  In addition, as shown in FIG. 7, it is conceivable to provide a displacement prevention means 23 for preventing the algae growth member main body 21 from being displaced relative to the rooting spacer 22.

  Specifically, the position deviation prevention means 23 is configured to fit the algae growth member main body 21 into a recess 231 provided in the rooting spacer 22 so that the algae growth member main body 21 becomes the rooting spacer. 22 to prevent displacement. In addition, about another structure, it is the same as that of the said embodiment, and also in FIG. 7 and FIG. 8 shown below, the same code | symbol as the said embodiment is attached | subjected to the structure similar to the said embodiment.

  The concave portion 231 is obtained by denting the upper surface of the rooting spacer 22 (the contact surface with the algae growth member main body 21) with the volume of the algae growth member main body 21, and reducing the depth of the alga. The planar view opening shape is substantially the same as the planar view shape of the algae breeding member main body 21 while being substantially the same as the thickness of the growth member main body 21.

  Therefore, in a state where the algal growth member main body 21 is fitted to the rooting spacer 22, the upper surface of the rooting spacer 22 and the upper surface of the algal growth member main body 21 are substantially flush with each other, and the root The inner peripheral surface of the concave portion 231 of the tension spacer 22 and the outer peripheral surface of the algae growth member main body 21 come into contact with each other, so that a positional shift between them, that is, a positional shift in the horizontal direction can be prevented.

  Therefore, the algal growth member main body in which the rooting spacer 22 is interposed between the algal growth member main body 21 and the root root resource growth block 1 and stretched to the rooting part 221 of the rooting spacer 22. There is no fear that the roots of the algae BO grown on 21 will be cut when the algae growth member main body 21 or the like is attached or detached, for example.

  Furthermore, as described above, the algae growth member body 21 is displaced with respect to the rooting spacer 22 by fitting the algae growth member body 21 into the recess 231 provided in the rooting spacer 22. Therefore, the misalignment prevention means 23 can have a simple configuration.

  Further, as shown in FIG. 8, as the second displacement preventing means 24, a convex portion 241 is provided on the rooting spacer 22, and an opening 242 is provided on the algal growth member main body 21 to fit the convex portion 241. Thus, it is possible to prevent the displacement more firmly.

  Specifically, a pair of columnar convex portions 241 projecting upward is provided on the bottom surface of the concave portion 231 of the rooting spacer 22, and the algal growth member main body 21 is substantially the same as the diameter of the convex portion 241. A pair of apertures 242 having a diameter is provided.

  In the embodiment shown in FIG. 8, the second misalignment prevention means 24 and the first misalignment prevention means for fitting the algal growth member main body 21 into the recess 231 provided in the rooting spacer 22. However, of course, only the second misalignment prevention means 23 may be included.

  Further, regardless of the configuration of the first displacement prevention means 23 and the second displacement prevention means 24, the rooting spacer 22 and the algal growth member main body 21 are engaged with each other in an uneven manner by other configurations. It is also conceivable to use a misregistration preventing means for preventing misregistration.

  In addition, the first positional deviation prevention means 23 and the second positional deviation prevention means 24 are configured to prevent horizontal positional deviation, but may be configured to prevent vertical positional deviation.

The perspective view which shows the breeding reef which concerns on one Embodiment of this invention. The perspective view which shows the attachment relationship, such as a fastening tool and algae growth member in the same embodiment. The perspective view which shows the state which attached the algae growth member in the same embodiment to the soot resource growth block. The schematic diagram which shows the handling method of the algae growth member in the embodiment. The top view of the fastening tool and algal growth member in the embodiment. Sectional drawing of the fastening tool and algal growth member in the embodiment. The perspective view (a) and sectional drawing (b) of the fastening tool and algal growth member in other embodiment. The perspective view (a) and sectional drawing (b) of the fastening tool and algal growth member in other embodiment.

Explanation of symbols

B0 ... Algae (seaweed)
H ... Hanging tool X ... Fastening tool X2 ... Operation part X3 ... Nut part X21 ... Notch part (second notch part)
Y ... Seed yarn 1 ... Pedestal (Sone resource growth block)
2 ... Growth member (algae growth member)
14 ... Bolt 21 ... Growth material body (Algae growth material body)
212 ... projection 212A ... notch (first notch)
213 ... Adjunct (first adjunct)
214 ... Adjunct (second adjunct)
215 ... Mounting part (hanging tool mounting part)

Claims (10)

A growth member algae having a growth member body to grow by survival algae,
The algae characterized in that the growth member main body for attaching algal spores on the surface is made of a resin containing an inorganic filler, has excellent corrosion resistance in the sea, is lightweight, and has high mechanical strength. Growth material. 2. The algal growth member according to claim 1 , wherein the resin further contains fibers . The algae growth member according to claim 1 or 2 , wherein the growth member body is formed by injection molding . The algae growth member according to any one of claims 1 to 3 , wherein the growth member main body contains 50% by weight or more of an inorganic filler . The algal growth member according to any one of claims 1 to 4 , wherein the inorganic filler is a naturally produced inorganic filler such as an inorganic filler derived from a resource present in the sea . An operation portion operable in a gripped state, and a nut portion for attaching to a bolt provided on a pedestal holding the growing member main body on the seabed,
By operating the operation portion in a state where the nut portion and the bolt are screwed together, the fastening member for fixing the growth member main body to the bolt detachably is provided,
The algal growth member according to any one of claims 1 to 5 , wherein the fastening device is made of a resin containing an inorganic filler . The algae growth member according to any one of claims 1 to 6 , wherein an attachment portion for attaching a hanging tool for suspending the growth member body in water is provided on the growth member body. . Protrusions are formed on the surface of the growth member main body, and seed yarns are attached by hanging seed yarns having algae spores attached to the projections. Item 8. The algae growth member according to any one of Items 1 to 7 . An attachment path is formed on the surface of the growth member main body so as to contact a surface of the growth member main body with a suspending tool for suspending the growth member main body in water at a central portion avoiding the plurality of protrusions. algae growth member according to claim 8, wherein the are. The protrusion or the fastening device of the growth member body, according to claim 8 or 9, wherein the forming a notch for securing insert the end of the yarn wound on the species subjected to the protrusion Algae growth material.

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