JP3037450U - Shell fish culture basket - Google Patents

Abstract

(57) [Abstract] [PROBLEMS] To improve work efficiency of aquaculture, prevent damage, and improve durability. SOLUTION: Circular support frames 1 reinforced by reinforcing bars 2 are arranged in a plurality of stages. A body 4 made of net is connected to the outer periphery of the support frame 1, and a shelf 5 and a ceiling 6 made of net are connected to the support frame 1 and the reinforcing crosspieces 2 at each stage to form a storage chamber 7. An opening 8 for inserting and discharging shellfish is formed in the body 4 in each storage chamber 7. Each of the mouth portions 8 has a vertical crack 10 formed in an upper portion from an intermediate portion of each storage chamber 7, and a slit portion 11 formed in a lateral direction following the intermediate portion of the vertical crack 10.
Consisting of The vertical splits 10 are almost closed so that the shellfish can be prevented from flowing out when the shellfish is not loaded when it is used vertically, and the cut portion 11 is loaded with the shellfish when it is horizontally discharged. Is configured so that it can be expanded together with the vertical crack 10 so as to allow the shellfish to drop.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a multi-stage aquaculture cage used for aquaculture of shellfish such as scallops, oysters and pearls.

[0002]

[Prior art]

 Conventionally, as this type of multi-stage aquaculture cage, it has been composed of support frames arranged in multiple stages, reinforcing bars connected to the support frames of each stage, and nets connected to the outer periphery of the support frame. A trunk having an opening for loading and unloading shellfish corresponding to each storage chamber between the support frames, and a netting provided in the trunk and connected to the support frames and the reinforcing bars at each of the stages. It is equipped with a shelf and a ceiling and a plurality of suspension ropes connected to the outer periphery of the support frame, and the mouth is formed by vertical butt-shaped vertical splits. It is known that the mouth can be closed by sewing a mesh with a closing thread made of, for example. Generally, in order to improve strength, improve operability, stability in the sea, efficiency of shellfish removal work, etc., the support frame is formed into a circular shape and the whole is formed into a cylindrical shape. There is.

In order to use this multi-stage aquaculture cage, during aquaculture, a half-shelled shell is put into the storage chamber through the mouth, and the mesh near the mouth is closed with a thread to close the mouth. In addition, when taking out for thinning in the next step, that is, during thinning, for example, ear hanging culture, transfer to a coarse cage, or removal for shipping after culture, remove the closing thread and open the mouth. It is opened, the multi-stage aquaculture cage is turned sideways, and the two ends of the suspension rope are held by two workers in total. By swinging the multi-stage aquaculture cage up and down, the mouth is opened by the weight of the shellfish. I was dropping it. If it is difficult to drop the shellfish from the mouth even if the multi-stage aquaculture cage is shaken at once as described above, by shaking the shellfish up and down in the storage room on each stage by one person, the shellfish's own weight will open and the shellfish will fall. I was letting it.

[0004]

However, the work of sewing the mouth portion with the closing thread and closing it or removing the closing thread to open the mouth portion as in the above-mentioned conventional example is not only troublesome, but also requires labor. Poor work efficiency. For this reason, only the lower part of the mouth is closed with a closing thread at all times, and the semi-shelled shells are put into the storage chamber from the upper open part of the mouth, and the lower part of the mouth is closed during aquaculture. To prevent the fish from spilling or escaping, and at the time of removal, rock the shells in the same way as above or by shaking them up and down in each storage chamber to open the shells by their own weight from the top of the open mouth. Are falling. If the lower part of the mouth is always closed with a closing thread in this way, the mouth is closed with a closing thread after the half-shells are put in, or the closing thread is removed before the shellfish is taken out to open the mouth. Can be omitted.

[0007] However, if the continuous cultivation cage is shaken due to a tidal current or a barge, the shellfish may move up and down, and may flow out or escape from the upper part of the open mouth portion. There are differences depending on the time of use and year, such as being difficult to drop due to being caught in the open part. Actually, it is difficult to finely adjust the closing length of the mouth part, that is, the length of the opening part.

[0006] In addition, although shellfish grow and become large and heavy when taken out, not only when the lower part of the mouth is always closed by a closing thread and the opening is narrowed, the closing thread is removed. Even when the mouth is opened over the entire length of the mouth, the mouth is simply formed by butt-shaped vertical cracks, and it is difficult to open widely. Since it is necessary to grab the support frame and the net cloth in the vicinity of each storage room and shake it strongly up and down, the net cloth forming the trunk may be damaged.

The present invention solves the above-described conventional problems. After the shellfish are put in, the mouth is sewn with a closing thread to close it, or when the shellfish is taken out, the closing thread is removed to open the mouth. It is possible to eliminate the troublesome work of opening, and to easily and reliably drop and discharge the shellfish by simply widening the mouth and shaking it relatively gently when taking out the shellfish. It is an object of the present invention to provide a multistage aquaculture cage for shellfish that can improve the working efficiency of aquaculture and prevent damage and improve durability.

[0008]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention comprises a supporting frame arranged in a plurality of stages, reinforcing bars connected to the supporting frames of each stage, and a net-like member connected around the supporting frame. A shell having an opening for loading and unloading shellfish in each storage chamber between the support frames, and a shelf made up of a net-like object provided in the trunk and supported by the support frame and the reinforcing bars and A ceiling and a plurality of suspension ropes connected to a plurality of outer circumferences of the support frame are provided, and the mouth portion is formed in a vertical direction from an intermediate portion of each of the storage chambers in the body portion to an upper portion, A vertical crack that is almost closed so that the shellfish can be prevented from flowing out without being loaded by the shellfish, and it is formed laterally following the middle part of this vertical crack, and the load by the shellfish is applied. Allow the shellfish to fall with the vertical cracks It is made of a tear portion that may be expanded.

In the above structure, the mouth portions are arranged on substantially the same straight line along the axial center of the body portion, and a handle rope for discharging shellfish is linearly attached to the opposite side of the mouth portion. Are arranged so that their mouths are located on the same straight line along the axis of the trunk near the opposite side of one of the suspension ropes, and the suspension rope is also used as a handle rope for discharging shellfish. Is preferred. Further, it is preferable that the support frame is formed in a circular shape and the body portion is formed in a cylindrical shape.

According to the present invention configured as described above, it is possible to open the vertical cracks formed in the upper part of each storage chamber together with the slits and to enter shellfish in each storage chamber. Since the vertical cracks at the top of each storage room are almost closed and the bottom is not open, it is possible to prevent the shellfish from spilling or escaping due to tidal currents or moss. it can. When the shellfish is taken out, the whole is turned sideways and shaken up and down, so that the cut part can be largely opened together with the vertical crack due to the weight of the shellfish and can be dropped. In this way, after inserting the shellfish, the mouth can be sewn with a closing thread to close it, and when removing the shellfish, the troublesome work of removing the closing thread and opening the mouth can be eliminated. By simply widening the mouth and shaking it relatively lightly, it can be dropped and discharged easily and reliably.

[0011]

[Embodiment of the invention]

 Embodiments of the present invention will be described below with reference to the drawings. First, a first embodiment of the present invention will be described. 1 to 4 show a continuous culture shell for shellfish according to a first embodiment of the present invention, FIG. 1 is an overall schematic configuration diagram, and FIGS. 2 (a) and 2 (b) are mouth portions of a storage chamber, respectively. FIG. 4 is a front view of a closed state and an opened state of FIG. 3, FIG. 3 is a front view showing a modified example of the slit portion of the mouth portion, and FIG.

As shown in FIG. 1, support frames 1 formed in a circular shape are arranged in a plurality of rows in the vertical direction at desired intervals. A plurality of reinforcing bars 2 (two in the illustrated example) are crossed so as to pass through substantially the center of the support frame 1 of each stage, and the crossing portions are connected by a connecting tool 3. As will be described later, each reinforcing bar 2 is connected. Both ends of the are bent and connected to the support frame 1. This connection position is set so as to be substantially evenly divided (every 90 degrees in the illustrated example) on the circumference.

On the outer periphery of the support frame 1, a cylindrical body 4 made of a mesh, synthetic fiber mesh in the illustrated example, is connected. Inside the body 4, there are provided circular shelves 5 on the reinforcing bars 2 at the middle and lowermost stages, which are made of net material, in the illustrated example, made of synthetic fiber netting, and each shelf 5 is a supporting frame. 1 and the reinforcing crosspiece 2 are connected and supported. A circular ceiling 6 made of a mesh, in the illustrated example, a mesh made of synthetic fiber is connected to and supported by the uppermost support frame 1 and the reinforcing crosspiece 2. As a result, a shell storage room 7 is formed between the support frames 1 and 1.

Each storage chamber 7 is formed with a mouth 8 for loading and unloading shellfish on substantially the same straight line along the axis. The mouth portion 8 is formed by the mating portion of the mesh forming the body portion 4. That is, in the body 4, a rectangular mesh is curved in a cylindrical shape, both ends along the axial direction are aligned, and at the lower portion of each storage chamber 7, the mesh is formed by a closing thread 9 made of polyethylene single thread or the like. A vertical split 10 is formed in the axial direction (longitudinal direction) from the middle part to the upper part. A slit 11 is formed in the lateral direction (circumferential direction) following the vertical crack 10 at an intermediate portion of each vertical crack 10, preferably at a position closer to the upper side. The vertical cracks 10 can prevent the outflow of shellfish as shown in Fig. 2 (a) in a normal aquaculture state in which the multi-stage aquaculture cage is oriented vertically, that is, in the state where no load is applied by the shellfish. It is set so that it is almost closed. Such a shape can be obtained by setting the width of the net cloth to be slightly wider in advance. Then, as will be described later, in the discharged state in which the multi-stage aquaculture cage is laid sideways, that is, in the state where the load by the shellfish is applied, as shown in FIG. It is set so that it can be expanded to allow

When the mesh forming the body portion 4 is a frog fork knot mesh as shown in the drawing, the slit 11 only melts the mesh with a heater and there is no risk of the mesh being unraveled. No special post-processing is required. Further, in the case of Russell net cloth, as shown in FIG. 3, since the thread can be unwound from the cut portion, a sealing process with the adhesive 12 or the like is performed.

The intermediate portions of the suspension ropes 13 are coupled to the support frames 1 of the respective stages at the coupling portions with the reinforcing bars 2, and the upper protrusions and the lower protrusions of the plurality of suspension ropes 13 are respectively supported by the support frame 1. Are bundled almost on the center line. A weight (not shown) is connected to the lower end of the hanging rope 13 if necessary.

The support frame 1 and the reinforcing bar 2 are made of a rod-shaped member, and as an example, a rod made of a metal such as iron is covered with a vinyl chloride tube. The supporting frame 1 of each of the above steps is formed into a circular shape by bending a rod-shaped member, overlapping both ends thereof, and connecting them by a string or the like. The connecting portion of the supporting frame 1 of each step with the reinforcing bar 2 includes the above-mentioned overlapping portion, and is recessed in the center side of the supporting frame 1. The bent portions 16 of the reinforcing bars 2 are connected to the respective recessed portions 15 in a state in which the movement of the support frame 1 in the circumferential direction is restricted, and the suspension ropes 13 straddle both sides of the bent portions 15. , So that the end portion of the reinforcing bar 2 does not project to the outside of the support frame 1, and preferably the suspension rope 13 does not project to the outside of the support frame 1 as much as possible.

In order to use the continuous-stage aquaculture cage configured as described above, the vertical cracks 10 having the mouths 8 in the storage chambers 7 of the respective stages are opened together with the slits 11 and half-shelled shells are put therein. Place on shelf 5. In this way, the multi-stage aquaculture cage containing the semi-shelled shells is submerged in the sea, and the upper end of the suspension rope 13 is connected to a raft (not shown) moored above the sea to support it in the submerged state. To do. The semi-shelled shellfish are cultivated in this state, but since the whole is formed into a cylindrical shape, it is obedient to tidal current and can be stabilized in the sea.

Then, the bent portion 16 of the reinforcing bar 2 is connected to the recessed portion 15 formed in the center of the supporting frame 1 so that the connecting portion of the reinforcing bar 2 to the supporting frame 1 is a supporting frame. It is possible to prevent the support frame 1 from being displaced in the circumferential direction, and thus to prevent the support frame 1, that is, the entire multi-stage aquaculture cage from being deformed. Further, the connecting portion of the reinforcing bar 2 to the support frame 1 is housed in the recessed portion 15 of the support frame 1 so that it is hardly projected to the outside of the support frame 1, and the specific portion of the net forming the trunk portion 4 is It is possible to minimize wear due to friction with other objects.

When the shellfish are taken out, the multi-stage aquaculture cage is lifted from the sea, the multi-stage aquaculture cage is placed sideways as shown in FIG. 4, and both ends of the hanging rope 13 are held by different operators 19 and the mouth 8 is provided. Shake up and down with face down. Along with this, the grown shellfish 18 drops the vertical crack 10 that is the mouth portion 8 together with the slit portion 11 by its own weight. At this time, since the whole is formed into a cylindrical shape, the shellfish 18 can be easily dropped to the lower side of the mouth portion 8 to easily perform the discharging work.

Next, a second embodiment of the present invention will be described. FIG. 5 is a schematic perspective view showing a continuous culture cage for shellfish according to a second embodiment of the present invention.

The feature of this embodiment is that, as shown in FIG. 5, a handle rope 17 for discharging shellfish is linearly connected to each support frame 1 on the opposite side of each mouth 8. Have characteristics. Similar to the case where the handle rope 17 is also connected to the suspension rope 13, the handle rope 17 is connected to the recessed portion 15 formed in the support frame 1 to prevent the shift in the circumferential direction. Other configurations are similar to those of the first embodiment.

According to the present embodiment, since the handle rope 17 is arranged on the opposite side of the mouth portion 8, when the shellfish is discharged, the handle rope 17 is shaken up and down to efficiently move the shellfish to the lower side. Since the shellfish can be collected in the mouth portion 8 and the shellfish can be easily and surely discharged, and further, the handle rope 17 is swayed up and down, so that the body portion 4 made of mesh can be prevented from being damaged. it can.

Next, a third embodiment of the present invention will be described. FIG. 6 (a) is a partial schematic perspective view showing a cage for continuous culture of shellfish according to a third embodiment of the present invention, and FIG. 6 (b) is an explanatory view of a shellfish discharge operation of the continuous culture cage. .

As a feature of this embodiment, as shown in FIGS. 6 (a) and 6 (b), each mouth portion 8 is located on the opposite side of one of the suspension ropes 13 and along the axis of the body portion 4. The suspension ropes 13 arranged on substantially the same straight line and on the side opposite to the mouth portion 8 are configured to also serve as handle ropes for discharging shellfish, and other configurations are the same as those of the first embodiment. It is the same.

According to the present embodiment, since the mouth portion 8 is arranged on the opposite side of any one of the hanging ropes 13, when the shellfish are discharged, the hanging rope 13 can be used as a hand rope and rocked up and down. As a result, similar to the second embodiment, the shellfish can be easily and surely discharged, and damage to the body 4 made of net can be prevented. Also, the number of ropes can be reduced, and the cost can be reduced.

[0027]

[Effect of the invention]

 As explained above, according to the present invention, it is possible to open the longitudinal cracks formed in the upper part of the storage chamber together with the slits and to enter the shellfish into each storage chamber. Since the vertical cracks in the upper part of the chamber are almost closed and the lower part is not open, it is possible to prevent the shellfish from escaping or escaping due to tidal currents and ridges. When the shellfish are taken out, the entire shell is laid horizontally and shaken up and down, so that the severing part of the shellfish can be largely opened along with the vertical cracks and dropped by the weight of the shellfish. In this way, after inserting the shellfish, the mouth can be sewn with a closing thread to close it, and when removing the shellfish, the troublesome work of removing the closing thread and opening the mouth can be eliminated. Sometimes it can be easily and surely dropped and discharged simply by widening the mouth and shaking it relatively lightly. Therefore, the working efficiency of aquaculture can be improved, and further damage can be prevented and durability can be improved.

Further, by arranging the handle rope on the opposite side of the mouth portion, the shellfish can be efficiently collected in the lower mouth portion by shaking the handle rope up and down when discharging the shellfish, The shellfish can be discharged easily and surely, and thus the working efficiency can be further improved, and moreover, since the handle rope is swayed up and down, damage to the body made of netting is ensured. Can be prevented.

Further, by arranging the mouth portion on the opposite side of one of the hanging ropes, when the shellfish is discharged, the above hanging rope can be used as a hand rope and rocked up and down to easily and easily Therefore, the work efficiency can be further improved, and the damage to the body made of the mesh can be surely prevented. In addition, the number of ropes can be reduced, the structure can be simplified, and the cost can be reduced.

Further, by forming the support frame into a circular shape and the body portion into a cylindrical shape, the strength is improved, the operability is improved, the stability in the sea is improved, and the shellfish discharging work is made more efficient. Can be achieved.

[Brief description of the drawings]

FIG. 1 is an overall schematic configuration diagram showing a continuous culture cage for shellfish according to a first embodiment of the present invention.

2 (a) and 2 (b) are front views of the same-staged aquaculture cage with the mouth of the storage chamber closed and open, respectively.

FIG. 3 is a front view showing a modified example of the slitting portion in the mouth portion of the continuous culture cage.

FIG. 4 is an explanatory view showing a dropping culture state of shellfish, showing the same-stage aquaculture cage.

FIG. 5 is an overall schematic perspective view showing a continuous culture cage for shellfish according to a second embodiment of the present invention.

FIG. 6 (a) is a partial schematic perspective view showing a staged aquaculture cage for shellfish according to the third embodiment of the present invention, and FIG. 6 (b) is a diagram illustrating a shellfish discharge operation in the staged aquaculture cage.

[Explanation of symbols]

 1 Support Frame 2 Reinforcing Bars 4 Body 5 Shelf 6 Ceiling 7 Storage Room 8 Shell Mouth Input / Drain Port 10 Vertical Crack 11 Cleavage 13 Hanging Rope 17 Handle Rope

Claims (4)

[Utility model registration claims] 1. A support frame arranged in a plurality of stages, a reinforcing bar connected to the support frames of each stage, and a net connected to the periphery of the support frame, wherein each of the support frames is provided between the support frames. A trunk having a mouth for loading and unloading shellfish in the storage chamber, a shelf and a ceiling, which are provided in the trunk and are made of a net supported by the support frame and reinforcing bars, and the outer periphery of the support frame. A plurality of hanging ropes connected to a plurality of places, the mouth portion is formed vertically from an intermediate portion of each of the storage chambers in the body portion to an upper portion, shellfish in a state where no load is applied by shellfish The vertical cracks that are almost closed to prevent the outflow of the seawater and the middle portion of the vertical cracks are formed laterally in the lateral direction, and the load of the shellfish is applied. From a tear that can be expanded to allow it to fall Consecutive aquaculture basket consisting of shellfish. 2. The shellfish according to claim 1, wherein the respective mouth portions are arranged on substantially the same straight line along the axis of the body portion, and a handle rope for discharging shellfish is linearly attached to the opposite side of the mouth portion. A row of aquaculture baskets. 3. Each of the mouth portions is arranged on substantially the same straight line along the axis of the body near the opposite side of one of the hanging ropes, and the hanging ropes also serve as handle ropes for discharging shellfish. A multistage aquaculture cage for shellfish according to claim 1. 4. The multistage shell cage for shellfish according to claim 1, wherein the support frame is formed in a circular shape, and the body is formed in a cylindrical shape.