JP3525155B2 - Mesh panel for farming fish cages such as salmon - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a mesh panel for a storage cage for salmon and the like, which is mainly installed in a river or the like. 2. Description of the Related Art Conventionally, salmon and the like that run up rivers and the like in the autumn are cut off, and the salmon and the like are temporarily retained on the downstream side of a fish stopping facility, so-called urai, and then salmon and the like are captured. Although the method is generally used, when the catching time is slightly earlier, the parent fish such as male and female salmon which are slightly incapable of reaching full ripeness are mainly located at predetermined positions such as rivers. A grid-like mesh panel with a vertically long gap, and a farming facility such as a fish cage formed of a synthetic fiber net, etc. Are protected until they are fully matured. [0003] As described above, the captured
Parents such as salmon and other fish of near maturity that have been housed for a period of time in farming cages installed in rivers, etc. In pursuit of going up in the upstream direction, mainly aiming at vertically elongated voids between pipes such as pipes arranged upright in parallel at predetermined intervals of mesh panels forming a farming cage, so-called mesh locations Intensely and relentlessly plunge into the nose, trying to push the bar material to the left and right, jumping up to the waterfall of several meters in height upstream, salmon and other parent fish that have enough physical strength to rise In addition to damaging the fish such as the nose tip, especially in the case of a mesh panel, the gap of the bar-shaped material constituting the panel, that is, the width of the mesh is expanded and deformed, and finally, the bar-shaped material constituting the panel Damage It was achieved which leads to deviation of the parent fish etc. storage salmon. Conventionally, as measures to prevent such breakage, adoption of thicker rods with high bending strength,
Alternatively, measures such as reducing the interval between the rod-shaped members are taken. However, when the water volume of a river or the like increases due to rainfall or the like, and not only fallen leaves, but also the loss of a branch or the like occurs frequently, the above-described measures for preventing damage increase the shielding rate against the flow of a river or the like. Therefore, the floating obstacles are further entangled one after another with the rod-shaped members arranged at predetermined intervals in the upright state of the farming cage, that is, the panel forming the cage, so that the flowing water resistance is increased.
Therefore, when the volume of water in rivers and the like increases, the measures to prevent damage to the farming cage itself and the measures to prevent escape of the parent fish such as salmon often conflict with each other. It will be a major accident that will occur. Furthermore, taking the above-described measures for preventing damage greatly increases the weight of the panel, which has a serious adverse effect on the installation and recovery of the storage cage. Although it is possible to install an automatic removing device to remove suspended matter, it was practically impossible due to problems in cost and withdrawal. The mesh panel for farming fish such as salmon of the present invention saves labor such as repair and replacement caused by the above-mentioned conventional structural defect, that is, a vertically long gap, so-called mesh, and cultivates a parent fish such as salmon. It seeks to provide a means to ensure work safety and efficiency. [0004] In the above-described conventional panel forming the farming cage main body, the space between the bar-shaped members arranged in an upright state is strictly a vertically long void (mesh). Therefore, the shape of the void (mesh) is remarkably similar to a substantially vertically long elliptical fish body such as salmon, and the tip of the nose of salmon or the like is easily pierced. Therefore, the frequency of rushing of the nose of salmon or the like in the gap (mesh) becomes intense, so that the bar-shaped members arranged in the upright side-by-side state are spread right and left. In particular, when used in rivers, since the gaps (mesh) between the rods constituting the mesh panel are vertically long, the number of rods protruding upright from the river surface, like a so-called screen, is considered. When the water volume of a river or the like increases due to rainfall or the like, floating obstacles such as falling leaves and folded branches invade into the gaps (mesh) between the rods due to the strong flowing water. Because it is going to try, it often becomes entangled with the rod-shaped material, and therefore, the load of river water applied to the farming cage body formed of bane becomes extremely large, and there is a risk that the farming cage body is remarkable and easily broken. . For the above reasons, the mesh panel for farming fish such as salmon of the present invention has a horizontally long gap (mesh) by arranging bar-shaped members such as pipes in parallel at predetermined intervals in multiple stages and in a horizontal state. To have a lattice shape. [0005] Since the mesh panel for the storage cage of salmon and the like of the present invention has a structure integrated in a lattice shape having a horizontally long gap (mesh) as described above, a panel or a combination of a plurality of panels is used. By using a predetermined shape, for example, a box-shaped surrounding net, it is possible to not only completely prevent damage to fish caused by rubbing of the stored parent fish such as salmon, but also retain the egg for laying eggs necessary for hatching. Not only can secure the parent fish such as salmon, but also reasonably prevent the damage to the storage cage of salmon etc. caused by catching, floating, entanglement, etc. of floating obstacles such as fallen leaves and folded branches. It has a protective effect. The present invention will be described with reference to the illustrated embodiment. The mesh panel A for a farming facility of the present invention can be used for a salmon farming and hatching facility or other building that has been created in advance in a water area having a depth of about 2 m to 3 m which is separated from a rapid flow such as a river, or on land near a river. Inside or outside mesh panel A, or
In rare cases, a required number of mesh panels A are connected and fixed and used in combination. However, the size of the panel A is determined by the vertical and horizontal dimensions (for example, H: W =
1 to 2 m: about 1 to 1.5 m). As an embodiment of the present invention, as shown in FIG. 1 and FIG. 3, the structure of the panel A mainly includes a rod-shaped material 1 having a predetermined length made of a cylindrical hard material such as a plastic spipe. At predetermined intervals, they are arranged in a multi-stage and horizontal state, and the vertical reinforcing bars 3 are firmly attached to arbitrary positions in the middle part of the bar-shaped member 1, respectively, and both ends 1a of each bar-shaped member are T-shaped. After fitting into the lower port 2c of the joint 2 etc., the plastic of a predetermined length is respectively inserted into the right and left port 2b, 2a adjacent to the left and right ports 2a, 2b of the T-shaped joint 2, etc. A cylindrical connecting rod-shaped member 4 such as a spipe is fitted and firmly fixed with an adhesive 7 or the like, whereby the connecting member is continuously connected in the vertical direction. Therefore, in a state where the T-shaped joints 2, 2 and the like face each other in a right-and-left direction,
Each is united. In other words, the left and right ports 2a and 2b and the adjacent right and left ports 2b and 2a are connected in a continuous state in the vertical direction. The required number of the T-shaped joints 2 to be connected is determined by the vertical dimension of the panel A. Panel A
Is mainly arranged in the middle part of the bar-shaped member 1 so that the space between the vertical reinforcing bars 3 is several times as wide as the space between the bar-shaped materials 1, so that the horizontally long gaps (mesh) 5 will be integrated into a lattice shape. As described above, the mesh panel A of the present invention is formed by firmly fixing the rod-shaped material 1 such as plastic spipe, and the members such as the T-shaped joint 2 with the adhesive 7 or the like. In this case, the panel A is placed in a predetermined position in the water, that is, the side surface of the panel receiving column member 8 or the like, as shown in FIG. As shown in FIG. 3, each member constituting the panel unit A except for the vertical reinforcing bar 3 is inserted into the vertical grooves 8a and 8b provided in
Since it mainly consists of a member having a cylindrical hollow portion 6,
Depending on the water pressure of rivers and other waters, the T located at the bottom end and on the left and right ends
The water is sequentially infiltrated into the hollow portion 6 formed continuously inside each member from both the left and right ports 2a 'and 2b' of the K-shaped joint 2 ', and is completely filled. When in use, the panel A forming the breeding cage has its own weight plus the weight of water such as rivers flooded in the hollow portion 6, so that the stability and durability are maintained when used in water. It becomes possible to do. As described above, since the panel A forming the farming cage body of the present invention has a structure in which the bar-shaped members 1 are arranged in multiple stages and in a horizontal state at a predetermined interval, the vertical gaps of the conventional bar-shaped members arranged in an upright state are provided. Since the space between the bar-shaped members 1 is a horizontally long gap (mesh) 5 as compared to the panel of the section (mesh), the shape of the gap (mesh) 5 is a so-called horizontally long square mesh. The cross-section is completely opposite to the shape of a fish, such as salmon or the like, whose cross section is substantially vertically long. Therefore, since the panel A of the present invention has a shape opposite to that of a fish such as salmon, it is extremely difficult for the nose of a salmon or the like to physically rush. Therefore, the frequency of the nose tip of the salmon or the like in the void portion (mesh) 5 is extremely low, so that the bar-shaped members 1 arranged in a multi-stage parallel state are hardly spread right and left. Further, the rod-shaped material 1 constituting the mesh panel A
That the gap (mesh) 5 is horizontally long, it means that only a few vertical reinforcing bars 3 protrude from the river surface in an upright state, and the horizontal state exists at a position near the water surface such as a river. Since the number of the rod-shaped members 1 is also about one or two, floating obstacles such as falling leaves and folded branches are affected by the river water flowing strongly near the upper layer of the river water, the rod-shaped members 1 near the river surface, and the vertical reinforcement. Even if it enters the large horizontally long gap (mesh) 5 between the bars 3, the entanglement with the bar-shaped material 1 and the vertical reinforcing bars 3 is significantly reduced. The load of water becomes extremely small, and the danger of damaging the fish cage body is eliminated. Further, in a river or the like, the mesh panel A for farming fish such as salmon used in the present invention is used between a pile and a pile (not shown) driven at a predetermined interval into a section set on a water bottom such as a river. Each of the right and left T-shaped joints 2 constituting both sides of the panel A or the panel A in which a required number of the panels A are connected is fixed with a rope or the like, and has a horizontally long void portion (mesh) 5. A farming cage body such as a box-shaped salmon or the like having a predetermined shape integrated in a lattice shape is formed. Furthermore, when installed inside or outside buildings such as salmon farming and hatching facilities created near rivers, etc., they must be dug in advance in a prescribed section scale and cast concrete on the bottom base. According to the above, the panel receiving column member 8, which is installed upright at a predetermined interval at a predetermined position to be the space for the built-up farming cage main body, that is, a panel receiving member made of a material such as concrete or steel having an H-shaped cross section. The vertical groove 8a provided in the column member 8,
8b, the panel A or a plurality of panels A are inserted by inserting the portions of the right and left T-shaped joints 2 on both sides of the panel A in a state in which the panel A is fixedly connected in the lateral direction as appropriate. It becomes something. The farming period for salmon etc. is over,
In the case of the collecting operation of the farming cage, the mesh panel A for the farming cage is pulled out from the panel receiving column member 8 and the like, and is easily pulled, so that the hollow portions 6 of the members constituting the mesh panel A are formed. The rivers and other water that fills the inside are the right and left ports 2a 'and 2b' of the T-shaped joint 2 'at the lower right and left ends.
Are always in the open state, so that the inside of the hollow portion 6 of the member constituting the panel A depends on the air pressure from the left and right ports 2a 'and 2b' of the T-shaped joint 2 'at the uppermost right and left ends. The filled water is extruded downward, and is naturally discharged from the left and right ports 2a 'and 2b' of the T-shaped joint 2 'at the bottom left and right ends. Therefore, the collection work is performed on the mesh panel A
Has only its own weight, that is, it is light in weight, and thus has an effect that can be easily and rationally performed. Vertical reinforcing bar 3
Length of the right and left spigot 2 of the T-shaped joint 2 '
a 'or 2b' height position, and
The shape of the upper and lower ends 3a is preferably tapered so that it can be easily inserted into a groove or the like provided at the bottom of a river or the like, so that the mesh panel A can be used regardless of up and down. [0007] As described above, the mesh panel for a farming cage according to the present invention has an extremely simple structure as described above, but is integrated into a lattice having horizontally long voids (mesh), and the panel is formed. Each main member is composed of a cylindrical member, and can be used regardless of up and down, so that it is possible to reduce the weight, and in the case of use underwater, water such as a river in each member is used. Since the weight is also added, it will have a moderate weight, and in the case of recovery work, inevitably, water such as rivers that have entered the hollow part of each member will be automatically discharged. The panels themselves are lighter. In addition, since it is possible to prevent damage accidents caused by floating obstacles, etc., it is excellent in cultivation effect and safety of parent fish such as salmon, ensuring the work to secure hatching fish eggs, and It can be done reasonably.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a front view of a mesh panel for a storage cage for salmon or the like of the present invention. FIG. 2 is a partially cutaway perspective view showing an example of a method of using the mesh panel of the present invention. Partially enlarged cross-sectional view of mesh panel [Explanation of reference numerals] 1. Bar-shaped material 1a Both ends of the bar-shaped material T-shaped joint 2 'Upper and lower T-shaped joint 2a. Left outlet 2b of joint. Right outlet of joint 2c. Lower spout 2a '. Left outlet 2b 'at the bottom of the joint. Right outlet 3c 'at the bottom of the joint. 2. Lower port at the bottom of the joint Vertical reinforcing bar 3a. 3. End of vertical reinforcing bar 4. Connecting rod material 5. Horizontal voids (mesh) 6. hollow portion of each member Adhesive 8. Panel receiving pillar 8a. 8b. Vertical groove of panel receiving material Mesh panel for farming fish cages such as salmon

Claims (1)

(57) [Claims] [Claim 1] In a net for a storage cage of salmon or the like installed in a river or the like, rods such as pipes of a required length made of hard material are multi-tiered at predetermined intervals. Parallel to the horizontal state, a vertical reinforcing bar at an arbitrary position in the middle of the bar-shaped member, and a T-shaped joint or the like at each end of each bar-shaped bar through a connecting bar such as a pipe of a predetermined length. And, by connecting up and down,
A mesh panel for a storage cage for salmon or the like, wherein the mesh panel is configured in a lattice shape having a horizontally long void portion.