JP4731429B2 - Protective net device - Google Patents

Description

  The present invention is used for breeding reefs used for growing or propagating algae and marine resources on the seabed, and protects organisms such as algae and marine resources that inhabit the breeding reefs from other organisms such as algae fish. It is related with the protection net device for.

  Conventionally, various types of breeding reefs have been devised for growing, growing and catching fish root resources such as abalone, tocobushi, turban shell, sea urchin, and lobster. Among such breeding reefs, one with a relatively simple structure is a root resource breeding consisting of a concrete plate formed by combining annular passages and radial passages on a pedestal that allow passage of root resources. The thing which provided the breeding part which mounted the reef is mentioned (for example, refer patent document 1). This can be done by placing a food culture reef that can cultivate plankton, etc., which feeds the root resource, and an algal breeding reef for growing algae above the root reed breeding reef on the pedestal. As described above, it is possible to constitute a multifunctional growth section for growing not only the root resources but also the feed biological algae and fish.

And the thing which can provide the columnar member in a base, can fix a protection net | network to this columnar member using a fastener, and can coat | cover the proliferation part on a base is devised (for example, refer patent document 2). As a result of being able to maintain a good state of attachment of the protective net, it is possible to suitably prevent damage caused by algal-eating fish and the like, and by removing the fasteners in the fixed state by appropriate means, If the attachment state of the columnar member is released, maintenance and replacement work of the protective net itself can be easily performed, as well as replacement work of the breeding part and algae, root resources, and feed organisms grown or grown in the breeding part. It is also possible to open part of the protective net necessary for harvesting algae and fish.
JP 2002-335806 A Utility Model Registration No. 3109447

  However, in the thing like the above-mentioned patent document 2, in order to release only the specific root root resource which grew to some extent among the root root resources, the feed biological algae, and the fish which are being propagated, a part of the protection net is opened. When doing so, it is difficult to accurately open the required dimensions. In other words, since the opened part depends on the position of the fastener, if the opened part is too small, sufficiently grown root resources cannot pass through, and if it is too large, other parts such as foreign enemies There is a risk that the animal may enter the protective net or open other root resources other than the species to be released.

  The present invention has been made paying attention to such problems, and the main purpose thereof is, for example, to protect young plant roots, feed biological algae and fish from external enemies, and to provide desired root resources, etc. It is an object of the present invention to provide a protective net device capable of suitably opening.

  In order to achieve such an object, the present invention takes the following measures. That is, the protective net device according to the present invention includes a propagation part for growing or proliferating juveniles of root resources such as abalone and sea urchin, algae, etc., a pedestal that supports the propagation part, and a columnar shape standing on the pedestal. Member, protective net positioned on the columnar member and covering the growth part, protective net mounting member for attaching the lower end of the protective net, and fixed position adjustment for moving the fixed position of the protective net mounting member in the vertical direction And a gap forming means capable of forming a gap between the protective net and the pedestal.

  If this is the case, it is possible to open the space covered by the protective net to the outside only by the dimension of the gap formed with a predetermined size, so that the problem of accidentally escaping other organisms is effective. It is possible to reliably move only the required root resources to the outside of the protective net while avoiding the problem.

  In particular, the work for forming the above-described gap in such a protective net device is performed in water, but such work in water is more difficult than on land, and the time for continuous work is also long. limited. Therefore, as an aspect that can easily and easily configure the size of the gap even in water where quickness is required, the fixed position adjustment unit is configured with a bolt column and a nut attached to the pedestal, and the protective net mounting member is The thing comprised by the attachment member main body which attaches a protection net | network, and the supported part which can be supported by a bolt pillar can be mentioned.

  Specifically, it is desirable to further include a fixed position adjusting portion that forms a gap having a predetermined size quickly and accurately, and further includes a spacer that can be interposed between the supported portion and the pedestal at a predetermined size. . And as a suitable aspect which positions a spacer, it is preferable that a spacer shall have an internal thread part which can be screwed together by a bolt pillar.

  In order to adjust the fixing position of the protective net attaching portion and to attach and detach the protective net more quickly, the supported portion is preferably a holding portion having a shape with one end opened.

  Further, in order to allow the gap forming means to function as the lower frame and position the protective net with certainty, it is assumed that a plurality of columnar members are provided around the multiplying portion, and the fixed position adjusting portion is provided with a plurality of columnar members. It is desirable to provide a plurality of protective net attachment members in the vicinity of the members, and to provide the protection net mounting members between the bolt columns.

  In order to suitably improve the strength of the columnar member while avoiding work such as welding, it is desirable to provide an upper frame member that detachably mounts between the columnar members at the upper end of the plurality of columnar members. Moreover, as a structure which can attach a protection net reliably, the aspect which provided the protection net fixing | fixed part which fixes a protection net to the upper frame member can be mentioned.

  And in order to avoid effectively that a protection net | network is damaged by a water flow etc., it is desirable to open a protection net | network with respect to a some columnar member.

  In addition, as an aspect that suitably configures the protective net, an aspect having an orbiting portion that can circulate integrally around the outer sides of the plurality of columnar members and an upper surface portion that is continuous with the encircling portion and covers the upper side of the plurality of columnar members is given. Can do. Further, in order to suitably perform work inside the protective net, such as harvesting of root resources and algae, it is desirable to provide a communication window that can communicate the inside and outside of the protective net in the surrounding portion. As a mode for performing such work more preferably, it is preferable that a pair of communication windows are provided at positions facing each other.

  Here, in order to securely attach the protective net, it is desirable that the bag shape to be attached can be configured by covering the columnar member.

  According to the present invention, in such a case, it is possible to open the space covered by the protective net to the outside only by the dimension of the gap formed with a predetermined dimension. It is possible to reliably move only the necessary root resources to the outside of the protection net while effectively avoiding the problem of being lost.

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

  For example, as shown in FIG. 1, the protective net device X according to the present embodiment includes a breeding unit 1 that is used by being laid on the seabed. This is a feed culture reef capable of culturing plankton or the like serving as a bait for the root resource, and a later-described algae growth member 12 for propagating algae above the root resource growth block 11 described later on the pedestal 2. By arranging the reef as a whole, not only the root resources but also the feed biological algae, and further, the protection net 5 described later is provided, so that the fish can be proliferated.

  Here, the protective net device X according to the present embodiment includes a breeding unit 1 that grows or proliferates juvenile roots such as abalone and sea urchin, algae, and the like, a pedestal 2 that supports the breeding unit 1, A columnar member 3 erected on the pedestal 2, a protective net 5 that is positioned on the columnar member 3 and can cover the breeding part 1, a protective net mounting member 61 that attaches the lower end of the protective net 5, and fixing of the protective net mounting member 61 It has a fixed position adjusting unit 62 that can move the position in the vertical direction by a desired dimension, and has at least gap forming means 6 that can form a gap between the protective net 5 and the base 2. .

  Hereinafter, each component of the protection net | network apparatus X is demonstrated concretely.

  As shown in FIG. 1, the breeding part 1 is mainly intended to grow and propagate marine resources (hereinafter referred to as “sone resources”) such as abalone, shrimp, turban shell, sea urchin, and lobster from juveniles to adults. Sone resource growth block 11 and algae growth member 12 whose main purpose is to grow seaweeds (hereinafter, “algae”) such as arame, blackfish, scabbard, hondawala, etc. to form an algae field It is. Here, the root resource propagation block 11 and the algal growth member 12 in the present embodiment correspond to a so-called “growth reef”. The Sone resource breeding block 11 is made of a concrete block, and has a tapered surface that is gradually inclined inward from the top to the bottom on the outer surface. This root resource propagation block 11 is set so that either the other root resource growth block 11 or the algal growth member 12 can be selectively attached to the upper surface thereof. The algae growth member 12 is shown in a plan view in the form of a rectangular shape in plan view in the same figure, but the shape of the algae growth member 12 is not limited to that shown in the drawings, and various shapes are possible. Can be adopted. Such an algae growth member 12 may be attached to the soot resource growth block 11 in a state where no algae are grown on the surface, so that the algae spores and zoospores flowing into the tide are implanted. Alternatively, the algae grown in advance in the sea or in the onshore water tank may be attached to the Sone resource breeding block 11 in a state where the algae are activated on the surface.

  As shown in FIG. 1, the pedestal 2 is a large concrete structure having a size and a weight that can maintain a stable installation state over a long period of time on the seabed. The pedestal 2 includes a frame-shaped main body 21 having a hexagonal shape in plan view, leg portions 22 projecting diagonally downward and outward from each corner portion of the frame-shaped main body 21, and a pair of inner side surfaces of the frame-shaped main body 21. And a horizontal beam 23 functioning as an arrangement part for arranging the root resource breeding block 11.

  The columnar member 3 is mainly composed of an L-shaped steel material erected on the pedestal 2 as shown in FIG. 1 and FIG. 2, which is a diagram in which the breeding part 1, the cross rail 23 and the protective net 5 are omitted. Yes, it has sufficient strength to support the protective net 5. Specifically, the columnar member 3 is erected on the frame-shaped main body 21 of the pedestal 2, and in the present embodiment, each columnar member 3 of the plurality of root resource breeding blocks 11 arranged on the frame-shaped main body 21. Among them, a total of four are provided at positions where the root resource propagation block 11 and the protection net 5 arranged at the end can be positioned. Each columnar member 3 is an L-shaped steel material embedded in the frame-shaped main body 21 in a state in which the L-shaped steel material is erected so that the inner angle side faces inward. More specifically, the columnar member 3 is provided by, for example, fixing a male screw member to the column main body 31 made of the above-described L-shaped steel material and the upper end of the column main body 31, and an upper frame member 4 to be described later. It has the upper frame attaching part 32 which can be attached.

  In this embodiment, as described above, the upper frame member 4 is attached to the upper side of the columnar member 3. As shown in FIG. 2, the upper frame member 4 is installed between a fixed portion 41 fixed to the upper frame mounting portion 32 of the columnar member 3 so as to be detachably attached with, for example, bolts, and the fixed portions 41. The horizontal portion 42 is mainly configured. In this embodiment, the protective net 5 is fixed to the horizontal portion 42 using, for example, a resin binding band t. In other words, the horizontal portion 42 serves as a protective net fixing portion according to the present invention. The upper frame member 4 is attached by positioning the fixed portion 41 at the position of the above-described male screw member and inserting it, and then screwing a nut (not shown) to the tip of the male screw member.

  As shown in FIG. 3 and FIG. 4, in particular, the protective net 5 is a view in which the breeding part 1 and the crosspieces 23 are omitted, and is usually supported by the columnar member 3 to cover the breeding part 1. This is to prevent the escape of fish roots and fish. Further, the protective net 5 is configured to have a bag shape to be attached by covering the columnar member 3 by providing a circulating portion 52 described later. In this embodiment, the protection net 5 is not provided with a portion that is directly fixed to the columnar member 3 as shown in the figure. In other words, the protection net 5 is open to the plurality of columnar members 3. And attached. More specifically, as shown in the figure, the protective net 5 is made of, for example, a synthetic fiber having flexibility, and is approximately the same size as a surface connecting the upper ends of the four columnar members 3. The upper surface part 51 which has this, and the surrounding part 52 which can go around the outer side of the some columnar member 3 integrally shall be included. In particular, as shown in FIG. 4, the circulating portion 52 is provided with a pair of communication windows 521 that can partially communicate the inside and outside of the protective net 5 at positions facing each other. The state shown in FIG. 3 shows a normal use state in which the communication windows 521 are closed using the same binding band t as described above. On the other hand, FIG. 4 shows a state in which the communication window 521 is opened and work for the breeding unit 1 can be performed. In addition, the mesh size of the lower region of the orbiting portion 52 is set to such an extent that it can prevent the passage of juveniles such as abalone and sea urchin and prevent the invasion of carnivorous marine animals such as starfish and octopus. The upper mesh size is set to be larger than the mesh size of the lower region so that alga-eating fish such as Aigo, Isuzumi and Budai cannot pass through.

  Therefore, the protective net device X according to the present embodiment includes the gap forming means 6 that can form a gap s of a required size between the protective net 5 and the base 2 as described above. .

  As shown in FIGS. 2, 3, 4, 5, 6, and 7, the gap forming means 6 is a fixed position adjusting unit that can move the fixed position of the protective net mounting member 61 in a vertical direction by a desired dimension. 62 and a protective net attaching member 61 for attaching the lower end of the protective net 5.

  As shown in FIGS. 5, 6, and 7, the fixed position adjusting unit 62 is positioned at a total of four locations in the vicinity of the plurality of columnar members 3, and the bolt columns 621 attached to the base 2 and the tip ends of the bolt columns 621. A nut 622 that can be screwed into the bolt column 621 at a position, and a spacer that can be interposed between a supported portion 612, a nut 622, or a base 2 described later of the protective net mounting member 61 with the bolt column 621 inserted. 623. The spacer 623 has an internal thread portion 623 a that can be screwed into the bolt column 621. The side surface of the spacer 623 is shaped so that a tool of the same type as the nut 622 can be used, and a series of operations for adjusting the fixing position of the protective net mounting member 61 can be performed with only one type of tool. .

  As shown in FIGS. 2, 3, and 4, the protective net attachment member 61 is installed by being installed between two bolt pillars 621 to position the lower end of the protective net 5. It has a rod-shaped attachment member main body 611 to be fixed and a supported portion 612 that can be supported and fixed at the position of the bolt column 621. In this embodiment, the attachment member main body 611 fixes the lower end of the protective net 5 using a binding band t at an arbitrary position as shown in FIGS. 3 and 4. The supported portion 612 is configured so that when the two protective net attachment members 61 are overlapped at the position of the supported portion 612 by setting the thickness dimension in the vertical direction to substantially half of the attachment member main body 611, the two protective nets are provided. The attachment member 61 is configured so that the phases in the vertical direction can be arranged equally. As shown in FIGS. 5, 6, and 7, the supported portion 612 functions as a clamping portion according to the present invention in which one end is opened so that the bolt column 621 can be clamped from the side. Yes. The supported portion 612 includes a base end 612a extending from the mounting member main body 611 with approximately half the thickness as described above, a clamping piece 612b that can clamp the bolt column 621 from the side, and a clamping piece 612b. It has an open end 612c that can be moved and opened with respect to the bolt column 621 from the tip end side.

  Subsequently, a mode in which a gap s having a required size is formed between the base 2 and the protective net 5 by the gap forming means 6 is shown in FIGS. FIG. 6 shows that a spacer 623 is positioned between the supported portion 612 of the left side protection net mounting member 61 and the right side supported portion 612 in the drawing, and only the right protection net mounting member 61 is fixed upward. This is an aspect in which an arbitrary gap s is formed on the right side of the fixed position adjusting unit 62. FIG. 7 is a mode in which a gap s of an arbitrary size is formed on both sides of the fixed position adjusting unit 62 by positioning and fixing the protective net fixing units on both sides of the fixed position adjusting unit 62 upward. In the figure, the fixing of the protective net attaching member 61 is completed by fastening a nut 622 to the upper end of the bolt column 621.

  As described above, the protective net device X according to the present embodiment can arbitrarily form the gap s having a required size by appropriately adjusting the positions of the supported portion 612 and the spacer 623. ing.

  As described above, the protective net device X according to the present embodiment has the protective net attachment member 61 for attaching the lower end of the protective net 5 and the fixed position at which the fixed position of the protective net attachment member 61 can be moved in the vertical direction by a desired dimension. At least a gap forming means 6 having an adjusting part 62 and capable of forming a gap s between the protective net 5 and the pedestal 2 is formed with a predetermined dimension in a space including the breeding part 1 covered with the protective net 5. Since only the dimension of the gap s can be opened to the outside, it is possible to ensure that only necessary root resources are outside the protective net 5 while effectively avoiding the problem of accidentally escaping other organisms. It is possible to move to.

  In particular, in such a protective net device X, the operation of actually forming the gap s described above is performed manually in water. Therefore, the fixed position adjustment unit 62 includes a bolt column 621 and a nut 622 attached to the base 2 so that the dimension of the gap s can be easily and easily configured even in water where quickness is required. The protective net attachment member 61 is configured by an attachment member main body 611 and a supported portion 612 that can be supported by the bolt pillar 621.

  Specifically, by having the spacer 623 that can be interposed between the supported portion 612 and the pedestal 2 with a predetermined distance, the gap s having a predetermined dimension can be formed quickly and accurately. ing. The spacer 623 is provided with the female thread portion 623a that can be screwed into the bolt column 621, so that the spacer 623 itself can be suitably positioned and the protective net mounting member 61 can be more securely fixed. .

  In this embodiment, since the supported portion 612 functions as a holding portion having a shape with one end open, during the adjustment work of the fixing position of the protection net mounting member 61 and the attachment / detachment work of the protection net 5. When the supported portion is appropriately tilted and moved, the movement of the relative position with respect to the bolt column 621 can be suitably allowed, and the adjustment of the fixing position of the protection net mounting member 61 and the attachment / detachment of the protection net 5 can be performed more quickly. Making it possible to do.

  Further, it is assumed that a plurality of columnar members 3 are provided around the proliferation portion 1, a plurality of fixed position adjusting portions 62 are provided in the vicinity of the plurality of columnar members 3, and a protective net mounting member 61 is installed between the bolt columns 621. Provided. By doing so, the gap forming means 6 can function as a lower frame for the protection net 5 so that the protection net 5 can be reliably positioned in a state where it covers the growth portion 1.

  Since the upper frame member 4 is provided at the upper end of the four columnar members 3 so as to be detachable between the columnar members 3, the strength of the columnar members 3 is preferably reduced while avoiding welding processes and operations. It has been improved. In addition, as a configuration in which the protective net 5 is securely attached, the upper frame member 4 is configured to function as a protective net fixing portion by fixing the protective net 5 with the binding band t.

  In particular, in the present embodiment, the protective net 5 is not directly fixed to the columnar member 3, but only the upper frame member 4 and the protective net mounting member 61 are fixed using the binding band t so that the columnar member 3 is supported. Since the columnar member 3 and the protection net 5 are directly fixed to each other, the columnar member 3 and the protection net 5 are rubbed and damaged by receiving a strong horizontal force due to water flow or the like. It is possible to effectively avoid the binding band t from being damaged.

  And the protective net device X which concerns on this embodiment is the bag attached by setting it as the aspect which coat | covers the columnar member 3 by comprising integrally the lower part of the surrounding part 52 in order to attach the protective net 5 reliably. The shape is assumed to be configured. More specifically, the protective net 5 includes a circumferential portion 52 that can integrally circulate around the outside of the plurality of columnar members 3, and an upper surface portion 51 that is continuous with the circumferential portion 52 and covers the upper side of the plurality of columnar members 3. As a thing, the aspect suitably comprised in a bag shape is implement | achieved. Furthermore, in order to suitably perform work in the protective net 5 such as harvesting of root resources and algae, a communication window 521 that allows a part of the inside and outside of the protective net 5 to communicate with each other is provided in the circulating portion 52. Moreover, in order to perform such work more suitably, a pair of communication windows 521 are provided at opposing positions in the circulating portion 52.

  Although the embodiment of the present invention has been described above, the specific configuration of each unit is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

  For example, the number of columnar members is not limited to a plurality, and for example, a columnar member may be provided with a protective net attached in a cone shape with the upper end of one columnar member as a vertex. Further, the columnar member is not limited to an upright member, and may have various shapes such as a bent or curved member.

  In addition, the specific configuration of each part is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

1 is an external view of a protective net device according to an embodiment of the present invention. Structure explanatory drawing which concerns on the same embodiment. Same as above. Same as above. Explanatory drawing of the principal part which concerns on the same embodiment. Action | operation explanatory drawing which concerns on the same embodiment. Same as above.

Explanation of symbols

1 ... Proliferation part,
2 ... Pedestal 3 ... Columnar member 4 ... Upper frame member 42 ... Protective net fixing part (horizontal part)
DESCRIPTION OF SYMBOLS 5 ... Protective net 51 ... Upper surface part 52 ... Circumferential part 521 ... Communication window 6 ... Gap formation means 61 ... Protective net attachment member 611 ... Attachment member main body 612 ... Supported part, clamping part (supported part)
62 ... Fixing position adjustment part 621 ... Bolt pillar 622 ... Nut 623 ... Spacer 623a ... Female thread part X ... Protective net device

Claims (13)

A propagation part for growing or multiplying young plants or algae of roots resources such as abalone and sea urchin,
A pedestal that supports the breeding part;
A columnar member erected on the pedestal;
A protective net that is positioned on the columnar member and can cover the breeding part;
A protective net mounting member for attaching the lower end of the protective net, and a fixing position adjusting portion capable of moving the fixing position of the protective net mounting member in the vertical direction by a desired dimension, and forming a gap between the protective net and the base. A protective net device comprising at least a gap forming means. The fixed position adjusting unit is configured by a bolt column and a nut attached to the pedestal, and the protective net mounting member is configured by an mounting member main body to which the protective net is mounted and a supported portion that can be supported by the bolt column. The protective net device according to claim 1. The protective net device according to claim 2, further comprising a spacer capable of interposing the fixed position adjusting portion with a predetermined dimension between the supported portion and the pedestal. The protective net device according to claim 3, wherein the spacer has an internal thread portion that can be screwed onto the bolt pillar. The protective net device according to claim 3 or 4, wherein the supported portion is a holding portion having a shape in which one end is opened. A plurality of the columnar members are provided around the proliferation part,
The protective net device according to claim 3, 4 or 5, wherein a plurality of the fixed position adjusting portions are provided in the vicinity of the plurality of columnar members, and the protective net mounting member is provided between the bolt columns. The protective net device according to claim 6, wherein an upper frame member is provided at an upper end of the plurality of columnar members so as to be detachably mounted between the columnar members. The protective net device according to claim 7, wherein the upper frame member has a protective net fixing portion for fixing the protective net. The protection net device according to claim 6, 7 or 8, wherein the protection net is opened to the plurality of columnar members. The said protection net | network shall have the surrounding part which can circulate around the outer side of these columnar members integrally, and the upper surface part which continues to the said surrounding part and covers the upper side of these columnar members. , 8 or 9 Protective net device. The protection net device according to claim 10, wherein the surrounding portion has a communication window that allows communication between the inside and the outside of the protection net. The protective net device according to claim 11, wherein a pair of the communication windows are provided at positions facing each other. The bag according to claim 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 or 12, wherein the protective net can be attached by covering the columnar member. Protective net device.

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