JP2007000079A - Laver net installation structure - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a laver net installation structure enabling easy approach and separation of laver nets to the sea surface. <P>SOLUTION: This laver net installation structure has a laver net supporting means 23 which holds a laver net 1 so as to be displaced between an undersea stretched position contacting the sea surface and a drying position separated from the sea surface through inverting the supported laver net 1. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a laver net installation structure for spreading a laver net on the sea surface in a laver farm, and more particularly to a laver net installation structure suitable for drying a laver net from the sea surface.

  In general, nori culture is carried out by attaching a float to a seaweed net, etc., and floating it so that it floats on the surface of the sea and then anchoring it with a spear. This is done by the column system. The proper use of both types is determined by the location conditions of the laver farm.

  FIG. 6 shows an example of a stretched state of a laver net in a laver net installation structure called a floating system used for conventional laver culture, and a laver net (only part of which is shown) 1 forms four sides. A plurality of ropes 3 thinner than the edge rope 2 are knitted in a lattice shape or the like on the thick edge rope 2 and formed into a belt shape. The laver net 1 is provided with a plurality of extender bars 4 formed so as to extend in the axial direction in order to give buoyancy to the laver net 1 and to prevent the laver net 1 from being twisted. They are arranged in parallel along the longitudinal direction of the laver net 1 so as to be engaged with the curb 2 located along the longitudinal direction. The laver net 1 thus formed has a plurality of large floats 5, small floats 6, ridges 7 and the like, and a mooring line 8 that forms an outer large frame that is extended on the sea surface and a side that partitions the interior in parallel. It is installed in an area partitioned by the rope 9. That is, a plurality of portions of the edge rope 2 extending in the longitudinal direction of each laver net 1 are connected to the mooring rope 8 or the side rope 9 with the suspension rope 10, and the four corners of the laver net 1 with the bridle 11 in the longitudinal direction of the laver net 1 It is connected with the mooring rope 8 which faces the edge part.

  According to the conventional laver net installation structure 12 thus formed, as shown in FIG. 7, the laver net 1 can be spread on the sea surface SS of the laver farm. In addition, since the sea surface changes the height position from the seabed due to the tide, the laver net 1 is spread in the seawater of the laver farm depending on the change of the tide level.

  By the way, when laver is nurtured or nurtured, the laver net 1 is separated from the sea surface SS, and sterilization of various bacteria adhering to the laver by daylight in the daytime means that high quality laver can be obtained. Desirable for nori culture.

  However, in the conventional laver net installation structure 12 described above, since the laver net 1 is installed so as to float on the sea surface SS, the laver net 1 cannot be kept floating in the atmosphere while being separated from the sea surface SS. However, there was a problem that germs attached to the laver could not be sterilized by the sun in the daytime.

  In order to cope with such a problem, as shown by a broken line in FIG. 6, a plurality of pipe bodies 13 formed in a U-shaped or U-shaped bent shape on the back side of the laver net 1 are provided with the laver net 1. The pipe bodies 13 are arranged in parallel along the longitudinal direction, and both ends of these pipe bodies 13 are connected to the side ropes 9 and the mooring ropes 8 arranged along the long sides of the laver net 1, so that the pipe bodies 13 are shown in FIG. As shown by a double-headed arrow, it is formed to be able to rise and fall along the longitudinal direction of the laver net 1. Then, at the time of raising seedlings or raising the seaweed net 1 on the sea surface SS, as shown by a solid line in FIG. 7, the pipe body 13 is set in a sideways state in which it lies down below the back surface of the seaweed net 1. In addition, a rope (not shown) is attached to the pipe body 13 along the longitudinal direction of the laver net 1 at the time of drying when the laver net 1 is separated into the air located above the sea surface SS in order to sterilize various bacteria. It is conceivable that the pipe body 13 is raised up below the back surface of the laver net 1 as shown by a broken line in FIG.

  However, at the time of drying when the laver net 1 is separated above the sea surface SS, in order to erect all of the plurality of pipe bodies 13 arranged in parallel along the longitudinal direction of the laver net 1 at once, from above the work boat There was a problem that a great deal of labor was required.

  When the laver net 1 is separated above the sea surface SS, the hook attached to the tip of the rope is locked to the pipe body 13 and pulled, so that the laver net 1 is arranged in parallel along the longitudinal direction of the laver net 1. It is possible to stand up the pipe bodies 13 individually one by one, but in this case, the labor required for one operation for raising the pipe bodies 13 can be reduced. There is a problem that it takes a lot of time to stand up all of the plurality of pipe bodies 13 and separate the laver net 1 from the sea surface SS.

  Therefore, there is a demand for a laver net installation structure that allows the laver net 1 to be easily contacted and separated from the sea surface SS.

  The present invention has been made in view of these points, and an object of the present invention is to provide a laver net installation structure that allows a laver net to be easily contacted and separated from the sea surface.

  In order to achieve the above-mentioned object, the laver net installation structure of the present invention according to claim 1 of the present invention is separated from the sea surface and the underwater stretch position in contact with the sea surface by inverting the supported laver net. It is characterized by having a laver net support means that is displaced and held at the drying position. And by adopting such a configuration, the laver net is also reversed by reversing the laver net support means, and the underwater stretch position where the laver net is in contact with the sea surface and the dry position separated from the sea surface The laver net can be reliably and easily brought into and out of contact with the sea surface.

  The laver net installation structure of the present invention according to claim 2 is the laver net installation structure according to claim 1, wherein the pair of support ropes are locked with both ends thereof connected, and a plurality of the laver net support means are supported by the pair of support nets. It is installed at a plurality of locations in the longitudinal direction of the support rope so as to extend the rope to a predetermined width, and a laver net is stretched between the pair of support ropes and between the laver mesh support means, so that at least one of the above-mentioned All the laver net support means, the support rope and the laver net are formed to be reversed by reversing the laver net support means. And by adopting such a configuration, by inverting at least one laver net support means part, all the laver net support means, the support rope and the laver net are reversed, and the laver net is in contact with the sea surface. It can be held by being displaced between the underwater extension position and the dry position separated from the sea surface.

  The laver net support means includes a stretch member that stretches the pair of support ropes to a predetermined width, a first float that holds the seaweed net in an underwater position, and a second float that holds the laver net in a dry position. It is good to form so that it may have. By adopting such a configuration, the laver net is also reversed more reliably by reversing the laver net support means, and the laver net that is in contact with the sea surface is separated from the underwater stretch position that is in contact with the sea surface. It can be displaced and held at the exit position.

  In the laver net support means, the installation range of the second float in the width direction of the laver net may be within an interval between the pair of support ropes. And by adopting such a configuration, the laver net supporting means, the support rope and the laver net can be reliably and easily inverted.

  Since the laver net installation structure of the present invention is formed and acts as described above, the laver net is also reversed by reversing the laver net support means, and the underwater stretch position and the sea surface where the laver net is in contact with the sea surface The laver net can be displaced and held at the dry position separated from the sea surface, and the laver net can be reliably and easily brought into contact with and separated from the sea surface.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, about the structure which is the same as that of the conventional thing mentioned above, or equivalent, the same code | symbol is attached | subjected in drawing.

  1 to 5 show an embodiment of a laver net installed in a laver farm using the laver net installation structure according to the present invention, and FIG. 1 is a plan view showing the main part of the overall configuration, FIG. Is a perspective view of the main part, FIG. 3 is an enlarged perspective view of the seaweed net support means part, FIG. 4 is a partially cut enlarged view of the main part showing the underwater stretched state, and FIG. 5 is a part of the main part showing the dried state FIG.

  As shown in FIGS. 1 to 5, in the laver net installation structure 21 of the present embodiment, a pair of seaweed nets installed at predetermined positions on the sea surface by a number of floats moored to the coral as in the conventional example. A pair of support ropes 22 are connected to the mooring rope 8 with both ends thereof being connected to each other, and a plurality of laver net support means 23 are stretched between the pair of support ropes 22 to a predetermined width. In this way, it is installed at a plurality of locations in the longitudinal direction of the support rope 22, and further, the laver net 1 is extended between the pair of support ropes 22 and between the laver net support means 23. A plurality of laver net installation structures 21 of the present embodiment are arranged in parallel in the width direction of the laver net 1 in FIG.

  More specifically, the laver net support means 23 inserts the support rope 22 into the horizontal pipe portion 24a of the pair of T-shaped pipe-like connectors 24, and places the pair of support ropes 22 between the vertical pipe portions 24b with a predetermined width. Both ends of an elongated pipe or shaft as the extending member 25 to be extended are inserted. A columnar first float 26 that holds the laver net 1 at the underwater extension position is attached to the center of the extension member 25. Further, between the first float 26 at the center of the extending member 25 and each connecting device 24, the extending member 25 is inserted into the horizontal pipe portion 27a of the pair of T-shaped connecting devices 27, and the vertical shaft. A spherical second float 28 for holding the laver net 1 in the dry position is mounted on each portion 27b. Rubber stoppers 29 are respectively attached to the vertical shaft portions 27b of the upper and lower portions of the second float 28 so that the attachment position of the second float 28 is adjusted and fixed. The installation range (length) of the pair of second floats 28 in the width direction of the laver net 1 is a pair of supports in order to invert the laver net support means 23, the support rope 22 and the laver net 1 reliably and easily. It is within the interval of the rope 22. Further, the buoyancy of the second float 28 is formed larger than the buoyancy of the first float 26 so that the laver net support means 23 can be positioned in the atmosphere together with the laver net 1. The couplers 24 and 27 and the extending member 25 in the laver net support means 23 may be formed of a resin material such as FRP or a light metal such as an aluminum alloy. Further, the pair of support ropes 22 are provided with extender bars 30 for maintaining the distance between them at appropriate positions in the longitudinal direction of the support ropes 22. As shown in FIG. 1 and FIG. 2, the laver net 1 is appropriately positioned on the edge 3 of the laver net 2 in the range inside the laver net supporting means 23 portion arranged at both ends in the longitudinal direction of the support leash 22. Is fixed to the support rope 22 with an appropriate fixing tool. In addition, the suspension rope 5 is fixed to the support rope 22 at the four corners of the laver net 1. On the further outer side of the laver net support means 23 disposed at both ends in the longitudinal direction of the support rope 22, the extending members 25 each having only the first floats 26 are stretched with connecting tools 24. As shown in FIG. 2, the connecting portions at both ends of the pair of support ropes 22 are attached to the mooring rope 8 so as to be rotatable with the swivel joint 31 as a horizontal rotation shaft. Thus, it is formed so that all the laver net support means 23, the support rope 22, and the laver net 1 are reversed by reversing at least one laver net support means 23 portion.

  Next, the operation of the present embodiment configured as described above will be described.

  1 to 4 show a normal seedling or breeding state in which the laver net 1 is spread on the sea surface SS to grow or grow the laver, and FIG. It is a figure which shows the dried state located inside.

  As shown in FIG. 1 to FIG. 4, normal seedling or nurturing is performed in which the laver net 1 by the laver net installation structure 21 of the present embodiment is spread on the sea surface SS and held in the underwater stretch position to grow or grow the laver. In the state, the first float 26 of each seaweed net support means 23 is positioned so as to float on the sea surface SS, and the second float 28 is positioned above the first float 26 in the atmosphere separated from the sea surface SS. Yes. And the laver net 1 latched by the spreading member 25 and the support rope 23 of each laver net supporting means 23 is stretched so as to float on the sea surface SS. Therefore, in the seedling raising or the growing state of the laver net installation structure 21 of the present embodiment, the laver net 1 can be cultivated by immersing the laver net 1 in seawater as in the conventional case.

  Then, the laver net supporting means 23 is rotated halfway around the horizontal axis to perform the laver net reversing operation, thereby separating the laver net 1 from the sea surface SS and holding it in the dry position in the atmosphere.

  This laver net reversal operation is performed by reversing at least one of the laver net support means 23.

  Specifically, the laver net reversal operation described below may be performed.

  For example, a work ship is positioned at the end in the longitudinal direction of the laver net 1 shown in FIG. 2 (the left end in FIG. 2) and in the vicinity of the mooring rope 8, and the end of the laver net 1 in the longitudinal direction A pair of support ropes 22 extending from the extension member 25 to the mooring rope 8 side and connected at the joint 31 are directly or manually using a rope with a hook (not shown), for example, counterclockwise around the horizontal axis. Rotate to As a result of this operation, the nourished net 1, the support rope 22 and the nori net support means 23 in the seedling or growing state shown by the solid line in FIG. 4 are approximately 90 degrees counterclockwise in FIG. 4 as indicated by the chain line in FIG. Rotate and lie down. At this time, since both ends of the pair of support ropes 22 are locked to the mooring rope 8 via the swivel joints 23, the swivel joints 31 provided with the pair of support ropes 22 at both ends thereof are used as horizontal rotation shafts. Rotate. Therefore, the laver net support means 23 positioned at the extreme end in the longitudinal direction of the laver net 1 is laid sideways so that the remaining laver net support means 23 is adjacent to the laid laver net support means 23 that has been laid sideways. It lays down in a chained order.

  Next, the laver net support means 23 that is laid down as shown by the chain line in FIG. 4 is further rotated approximately 90 degrees counterclockwise in FIG. At this time, since both ends of the pair of support ropes 22 are respectively locked to the mooring rope 8 via the swivel joint 31, the longitudinal direction of the laver net 1 is the same as when the laver net support means 23 is laid down. 4 is rotated approximately 90 degrees counterclockwise in FIG. 4 and turned upside down, so that the remaining nori mesh support means 23 is also turned upside down. The top and bottom are inverted in a chained order from the one adjacent to the means 23. During this reversal operation, the installation range (length) of the pair of second floats 28 in the width direction of the laver net 1 is set to be within the interval between the pair of support laths 22. 22 and the laver net 1 can be reliably and easily inverted. As shown in FIG. 5, the nori net support means 23 that is turned upside down in this way is reliably and easily held at the dry position by the two second floats 28 floating on the sea surface SS. As a result, the laver net 1 is separated from the sea surface SS in a state where the front and back sides are reversed, and is reliably held at the dry position in the atmosphere, so that germs can be sterilized well.

  Note that the dried state in which the laver net 1 shown in FIG. 5 is located in the atmosphere easily returns to the original seedling or breeding state shown in FIG. 4 by performing, for example, a reverse operation reverse to the above.

  According to the support rope 22 of the seaweed net installation structure 21 of the present embodiment, the support rope 22 is easily rotated without using much labor because it is rotatably locked to the mooring rope 8 by the swivel joint 31. be able to. Thereby, the laver net 1 can be easily reversed.

  Therefore, according to the laver net installation structure 21 of the present embodiment, the front and back of the laver net 1 can be reversed and the laver net 1 can be easily and reliably brought into contact with and separated from the sea surface SS.

  In addition, this invention is not limited to the said embodiment, It can change as needed. For example, the mooring rope 8 at both ends shown in FIG. 1 may be omitted, and the both ends of the support rope 22 may be directly connected to the large float 5 and extended to the sea surface.

The top view which shows the whole structure of embodiment of the seedling raising or the breeding state of the laver net installed in the laver farm using the laver net installation structure concerning the present invention The perspective view of the principal part of this invention Enlarged perspective view of the seaweed net support means Partial cut-away enlarged view of essential parts showing underwater extension Partial cut-away enlarged view of the main part showing the dry state The perspective view which shows the principal part of the conventional laver net installation structure Front view showing contact / separation operation of seaweed net on sea surface in conventional seaweed net installation structure

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Laver net 8 Mooring line 21 Laver net installation structure 22 Support rope 23 Laver net support means 25 Extension member 26 1st float 28 2nd float 31 Turning joint SS Sea surface

Claims (4)

  Nori-mesh net installation characterized by having a laver net-supporting means for displacing and holding in an underwater extension position in contact with the sea surface and a dry position separated from the sea surface by reversing the supporting nori-mesh net Construction.   A pair of support ropes are locked with both ends thereof connected, and a plurality of laver net support means are installed at a plurality of locations in the longitudinal direction of the support ropes so as to extend the pair of support ropes to a predetermined width. And extending the laver net between the pair of support ropes and between the laver net support means, and inverting at least one of the laver net support means, so that all the laver net support means, the support rope and the laver The laver net installation structure according to claim 1, wherein the laver net installation structure is formed so as to invert the net.   The laver net support means includes a stretch member that stretches the pair of support ropes to a predetermined width, a first float that holds the laver net in an underwater stretch position, and a second float that holds the laver net in a dry position. The laver net installation structure according to claim 1 or 2, characterized by having.   4. The laver net installation structure according to claim 3, wherein an installation range of the second float in the width direction of the laver net is within an interval between the pair of support ropes.

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