fish tank

Abstract

To provide a fish preserve that, when the fish preserve is not used, enables storage of a plurality of fish preserves stacked vertically and including a scaffold, when the fish preserve is used, allowing a person to walk on the fish preserve, and bracket for use in the fish preserve, being suitable for supporting a net-like body.SOLUTION: A fish preserve includes a fish preserve frame with a hollow part, a plurality of brackets for a net-like body provided in the fish preserve frame, a support frame for the net-like body supported by the plurality of brackets, a scaffold disposed between the plurality of brackets, and the net-like body supported by the support frame. The bracket includes a support hole for the support frame supporting the net-like body and a support part for supporting a scaffold with a flat part, where the bracket has a shape with a recess at an upper end. Such fish preserve and bracket are provided.SELECTED DRAWING: Figure 2

Description

Technical Field

[0001] The present invention relates to a bracket for a live trap net body and a live trap.

Background Art

[0002] As shown in Patent Document 1, a floating and sinking type live trap in which a net body is attached to a frame is known. The live trap of Patent Document 1 includes a plurality of column members with hollow interiors, and the buoyancy of the live trap is adjusted by supplying or discharging air or water into the column members, causing the live trap to sink in water or float on the water surface.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the live trap of Patent Document 1, it is not described that an operator rides on the frame and performs work. Further, in the live trap of Patent Document 1, it is not described that the live traps are stacked vertically for storage or transportation when storing or transporting the live traps.

[0005] An object of the present invention is to provide a live trap having a scaffold portion on which a person can walk when using the live trap, and a bracket suitable for supporting a net body, which can be stored by stacking a plurality of live traps vertically when not using the live trap.

Means for Solving the Problems

[0006] The above problem is solved by a bracket for a fishpond mesh structure provided on a fishpond frame having a hollow section, the bracket having a support hole for a support frame that supports the mesh structure and a support section for supporting a scaffolding section having a flat section, and the bracket having a recess at its upper end.

[0007] Furthermore, the fish tank comprises a fish tank frame having a hollow section, a plurality of brackets for a mesh-like body provided on the fish tank frame, a support frame for the mesh-like body supported by the plurality of brackets, a scaffolding section positioned between the plurality of brackets, and a mesh-like body supported by the support frame, wherein the bracket has a support hole for the support frame that supports the mesh-like body and a support section that supports the scaffolding section having a flat section, and the bracket has a shape in which a recess is formed at the upper end, thereby solving the above problems.

[0008] The above-mentioned fish tank and bracket are equipped with a platform having a flat section, allowing workers to safely walk on the fish tank and perform desired tasks. Furthermore, the above-mentioned fish tank and bracket have a recess at the upper end. When stacking the fish tanks vertically, the frame of the fish tank is stored in the recess, so the fish tanks can be stabilized when stacked vertically during storage and transportation.

[0009] In the above-described fish tank and bracket, it is preferable that the bracket has a through-hole for inserting a rope. For example, by inserting a rope through the through-hole, a rope for mooring a vessel can be fixed to the bracket. Also, for example, by inserting a rope through the hole, cushioning material such as a discarded tire can be fixed with the rope.

[0010] In the above-mentioned fish tank and bracket, it is preferable to have a through-hole for inserting a pipe that supplies gas to the fish tank frame. This allows the pipe that supplies gas to the fish tank frame to be fixed to the bracket, preventing the pipe from getting in the way of work or being unintentionally damaged during transportation or storage.

[0011] In the above-described fish tank, it is preferable that the support frame has a structure in which a synthetic resin layer is applied to the surface of a metal pipe or rod, and that the mesh is made of a metal material. This prevents rusting of the support frame or the mesh that comes into contact with the support frame, and increases the strength of the support frame. Furthermore, it is preferable that the support frame has a shape with corners and is fixed to the bracket so as not to rotate relative to the bracket. This effectively prevents the fish tank frame from collapsing inward into the fish tank.

[0012] The above-mentioned fish tank is a fish tank further comprising a bracket (hereinafter referred to as "another bracket") separate from the bracket (hereinafter referred to as "the first bracket"), and it is preferable that the other bracket has a portion in which the edge of its upper end protrudes from the scaffolding within a range of 0 to 3 cm. By using the other bracket in addition to the first bracket, it is possible to make it less likely for workers to trip over the bracket when moving on the scaffolding above the fish tank. [Effects of the Invention]

[0013] According to the present invention, when the fish tank is not in use, multiple fish tanks can be stacked vertically for storage. When the fish tank is in use, a fish tank equipped with a platform on which a person can walk is provided, and a bracket suitable for use in the fish tank and for supporting a mesh-like structure is provided. [Brief explanation of the drawing]

[0014] [Figure 1] This is a side view showing an example of the fish tank of the present invention. [Figure 2] Figure 1 is a perspective view of the fish tank. [Figure 3] This is a side view showing an example of the first bracket that makes up the fish tank in Figure 1. [Figure 4] This is a side view of the first bracket with the scaffolding attached. [Figure 5]It is a side view showing an example of a second bracket constituting the bamboo basket of FIG. 1. [Figure 6] It is a side view of the second bracket with the scaffold part attached. [Figure 7] It is a cross-sectional view showing an example of a support frame. [Figure 8] It is a perspective view showing an example of a scaffold part. [Figure 9] It is a side view showing a state where another bamboo basket is placed on one bamboo basket. [Figure 10] It is a view showing the internal structure of the bamboo basket frame. [Figure 11] It is an explanatory view showing the state of the hollow part when the bamboo basket is lifted. [Figure 12] It is an explanatory view showing the state of the hollow part when the bamboo basket is sunk. [Figure 13] It is an explanatory view showing how the bamboo basket falls inward.

Mode for Carrying Out the Invention

[0015] Hereinafter, an embodiment of the bamboo basket and the bracket of the present invention will be described. The embodiments shown below are merely limited examples of the embodiments of the present invention, and the technical scope of the present invention is not limited to the illustrated embodiments.

[0016] The bamboo basket 1 of the present embodiment is shown in FIGS. 1 and 2, and FIGS. 9 to 12. The bracket 11 for the net-like body used for the bamboo basket 1 is shown in FIGS. 3 to 6.

[0017] As shown in FIGS. 1 and 2, the bamboo basket 1 of the present embodiment includes a bamboo basket frame 15 having a hollow part, a plurality of brackets 11 for the net-like body provided on the bamboo basket frame 15, a support frame 12 of the net-like body 13 supported by the plurality of brackets 11, a scaffold part 14 disposed between the plurality of brackets 11, and a net-like body 13 supported by the support frame 12. The bracket 11 has a support hole 51 for the support frame that supports the net-like body 13 and a support part 52 that supports the scaffold part 14 having a flat part. The bracket 11 has a shape having a concave part 55 at the upper end part.

[0018] As shown in Figure 2, the fish tank frame 15 is a frame having corners 151 and a hollow section inside. A pipe 16 extending from a gas supply source is connected to the hollow section, allowing gas to be supplied into the hollow section. The fish tank frame 15 is composed of pipes with a circular cross-section.

[0019] The fish tank frame 15 has a roughly rectangular shape in plan view, with its corners 151 being curved. As shown in Figure 10, a gas inlet 7 is provided on the upper surface of each corner 151. Water outlets 8 are provided on the bottom surfaces of two opposing sides that form the roughly rectangular frame. Partitions 71 are provided on two opposing sides other than the aforementioned two sides to separate the hollow section. The partitions 71 divide the hollow section into a first chamber 511, a second chamber 512, a third chamber 513, a fourth chamber 514, a fifth chamber 515, and a sixth chamber 516. The first chamber 511 and the second chamber 512 have the largest volume. The third chamber 513 and the fourth chamber 514 have a smaller volume compared to the first chamber 511 and the second chamber 512. Rooms 515 and 616 have smaller volumes than rooms 313 and 414.

[0020] The first chamber 511 and the second chamber 512 are located opposite each other and communicate with the inlet 7 and the outlet 8. When gas is supplied from the inlet 7, the water inside the first chamber 511 and the second chamber 512 is discharged from the outlet 8. When gas is supplied to the first chamber 511 and the second chamber 512, the buoyancy of the gas causes the fish tank 1 to float to the water surface. When gas is discharged from the inlet 7, water enters the first chamber 511 and the second chamber 512 from the outlet 8, reducing the buoyancy and causing the fish tank to sink into the water.

[0021] Chambers 3 (513) and 4 (514) are always filled with air, constantly generating the buoyancy necessary to prevent the fish farm 1 from sinking at an excessively high rate.

[0022] Chambers 515 and 6516 are filled with water. When organisms such as barnacles or dirt attach to the fish tank 1 and the weight of the fish tank 1 increases, the water in chambers 515 and 6516 is drained and gas is filled in. Filling chambers 515 and 6516 with gas compensates for the decrease in buoyancy due to the increase in weight. Chambers 515 and 6516 can be switched between sealed and open states by plugging the through holes or by using valves.

[0023] As shown in the upper part of Figure 11, for example, when raising the fish tank 1, if gas is unevenly filled in a part of the first chamber 511 and the posture of the fish tank frame 15 tilts, the upper part of the first chamber 511 will pop out of the water surface, and due to the weight of the first chamber 511, the popped-out first chamber 511 will descend as indicated by the arrow, and the tilt will be eliminated. As a result, the water in the first chamber 511 will be discharged from the outlet 8 located in the middle. As shown in the lower part of Figure 11, when raising the fish tank 1, if water is discharged first from the outlet 8 of the second chamber 512, the buoyancy of the second chamber 512 will increase, and the second chamber 512 will tilt upward as indicated by the arrow. As a result, water will be discharged from the outlet 8 located in the middle of the first chamber 511, which is tilted downward. This makes it easier for the fish tank 1 to become horizontal when floating. Note that in Figures 11 and 12, water is shown as a solid black color. Furthermore, the symbols A and B in Figure 11 indicate the view from the perspective of arrows A and B in Figure 10 (the same applies to Figure 12).

[0024] Because a gas inlet 7 is provided at the corner 151, as shown in the upper part of Figure 12, for example, when the fish tank 1 is submerged, if water is unevenly filled in a part of the first chamber 511 and the posture of the fish tank frame 15 tilts, gas will gather at the upper inlet 7 of the first chamber 511, and the gas will be discharged from the upper inlet 7 to correct the tilt. As shown in the lower part of Figure 10, when the fish tank 1 is submerged, if the first chamber 511 is completely filled with water and the second chamber 512, which is opposite the first chamber 511, is partially filled with water, the buoyancy on the second chamber 512 side will increase due to the gas in the second chamber 512, causing the second chamber 512 to tilt upward. Gas will be discharged from the inlet 7 of the second chamber 512 and water will be filled from the outlet 8. As a result, the posture of the fish tank 1 will be more likely to become horizontal when the fish tank 1 is submerged.

[0025] The above-mentioned fish tank frame 15 is provided with a bracket 11 for a mesh-like structure. As shown in Figures 3 and 4, the first bracket 111 and the second bracket 112 are fixed to the fish tank frame 15.

[0026] As shown in Figure 3, the first bracket 111 has a support hole 51 for a support frame that supports the mesh body 13 and a support part 52 for supporting the scaffolding part 14 which has a flat part, and has a recess 55 at its upper end. The first bracket 111 has a through hole 54 for inserting a rope and a through hole 53 for inserting a pipe 12 that supplies gas to the fish cage frame.

[0027] As shown in Figure 5, the second bracket 112 has a support hole 51 for a support frame that supports the mesh body 13 and a support part 52 for supporting the scaffolding part 14 which has a flat part, and the edge of the upper end has a part that protrudes from the scaffolding part in a height range of 0 to 3 cm. The second bracket 112 also has a through hole 53 for inserting a pipe 16 that supplies gas to the fish tank frame 15.

[0028] The first bracket 111 and the second bracket 112 are fixed to the upper part of the fish tank frame 15, as shown in Figure 2. The fish tank frame 15 is made of a thermoplastic resin such as polyethylene. The first bracket 111 or the second bracket 112 and the fish tank frame 15 can be welded together, for example, by filling the joint between the first bracket 111 or the second bracket 112 and the fish tank frame 15 with molten thermoplastic resin. In the example in Figure 2, two first brackets 111 are arranged at intervals along the extending direction of the fish tank frame 15, and two second brackets 112 are also arranged at intervals. The arrangement order of the first brackets 111 and the second brackets 112 is not particularly limited, but it is preferable to arrange groups of multiple first brackets and groups of multiple second brackets alternately. The second bracket 112 is shaped to be less likely to cause tripping when walking on the scaffolding, with its upper end protruding from the scaffolding portion 14 at a height of 0 to 3 cm. By arranging the second brackets 112 in a regular pattern as a single group, it becomes easier to predict the frequency of their appearance, making it easier to walk on the fishpond 1.

[0029] The first bracket 111 and the second bracket 112 are both plate-shaped, with their lower ends cut out to conform to the outer shape of the fishpond frame 15, and extending in a direction intersecting the extending direction of the fishpond frame 15. Both the first bracket 111 and the second bracket 112 have multiple through holes as support parts 52 for the scaffolding section 14. The through holes for the support parts 52 pass through the first bracket 111 and the second bracket 112. Above the support parts 52 of the scaffolding section 14, there is a through hole 53 for inserting a pipe 16 for supplying gas to the fishpond frame 15. As shown in Figure 2, the pipe 16 for supplying gas passes through the multiple through holes 53 of the first bracket 111 and the second bracket 112 and is connected to the inlet 7 described above. Furthermore, the holes provided in the first bracket 111 and the second bracket 112 are both shaped to be drilled along the axial direction of the fish tank frame 15.

[0030] The upper ends of the first bracket 111 and the second bracket 112 are provided with support holes 51 for a support frame that supports the mesh body 13. The support holes 51 are shaped to penetrate both the first bracket 111 and the second bracket 112. The support holes 51 for the support frame are provided on the inside of the fish tank 1, as shown in Figure 2. On the first bracket 111, a through hole 54 for inserting a rope is provided on the outside of the fish tank. On the second bracket 112, a notch 56 is provided from the outside to the middle of the fish tank, as described above, in order to reduce the height at which the upper end of the second bracket 112 protrudes from the scaffolding portion 14. The notch 56 is configured to protrude a smaller distance from the scaffolding portion 14 compared to the recess 55. The inside of the second bracket 112 is a projection 57 with a support hole 51 for the support frame and a through hole 53 for inserting a pipe 12 for supplying gas.

[0031] In the first bracket 111, the upper end is provided with an arc-shaped recess 55 extending from the through hole 54 for rope insertion to the support hole 51 for the support frame. As shown in Figure 7, when multiple fish tanks are stacked vertically, the lower end of the fish tank frame 15 of the upper fish tank 1 is accommodated in the recess 55 of the lower first bracket 111. In this way, multiple fish tanks can be stacked in a space-saving and stable manner.

[0032] As shown in Figure 1, the upper end of the mesh body 13 is fixed to the support frame 12. As shown in Figure 7, the support frame 12 has a structure in which a synthetic resin layer 122 is attached to the surface of a metal pipe 121. The material constituting the synthetic resin layer 122 is not particularly limited, but a thermoplastic resin such as polyethylene is preferred because it is easy to process. The support frame 12 having such a structure is inserted into the support holes for the support frame of the first bracket 111 and the second bracket 112 and held in place. As shown in Figure 2, the shape of the support frame 12 is a roughly rectangular shape with arc-shaped corners in a plan view.

[0033] The support frame 12 is fixed to the first bracket 111 or the second bracket 112 so as not to rotate. The first bracket 111 and the second bracket are made of a thermoplastic resin such as polyethylene. The first bracket 111 or the second bracket 112 and the support frame 12 can be fixed to each other by welding, for example, by filling the joint between the first bracket 111 or the second bracket 112 and the support frame 12 with molten thermoplastic resin. As shown in Figure 13, if the support frame 12b and the bracket 11b are not fixed, stress will act on the support frame 12b due to the load on the mesh body 131b or the addition of current, etc., causing the support frame 12b to rotate and the mesh body 131b to be displaced significantly. As a result, the fish tank 11b may tilt inward. If the strength of the support frame 12b is low, the support frame will bend, making the fish tank 11b even more likely to tilt inward. In the fish tank 1, the support frame 12 is fixed to the first bracket 111 or the second bracket 112, and the support frame 12 is equipped with a metal pipe 121, and the support frame 12 is restrained at the corner 123, so it is unlikely to tip over inward.

[0034] The mesh structure can be any known mesh material, such as wire mesh made of metals like iron or copper alloys, or fishing nets made of synthetic fibers like polyethylene. Wire mesh is preferable because it maintains its shape and does not deform when the fish farm is submerged, thus minimizing stress on the farmed fish. The mesh structure is fixed to the support frame 12 by methods such as sewing the ends of the mesh structure together or passing wire through the ends of the wire mesh.

[0035] In the fish tank 1, the support frame 12 is constructed by covering a metal pipe 121 with a synthetic resin layer 122. If the mesh 13 is made of wire mesh, and the metals constituting the support frame and the wire mesh are made of different materials, galvanic corrosion is likely to occur. Since the support frame 12 is constructed by covering a metal pipe with a synthetic resin layer 122, such corrosion is less likely to occur. Note that the metal pipe may be replaced with a metal rod.

[0036] The scaffolding section 14 only needs to have a flat surface suitable for walking. In the fish tank 1 of this embodiment, the scaffolding section 14 is made of a plate-shaped grating with multiple through holes 141 provided at both ends in the direction of extension of the scaffolding section. Other materials such as plate-shaped perforated metal may also be used as the scaffolding section. The scaffolding section may also be made of a synthetic resin material having the shape of the grating or perforated metal. A fixing shaft 58 is inserted so as to communicate with the through holes 141 of the scaffolding section 14 and the through holes 52 that serve as support parts of the first bracket 111 or the second bracket 112, thereby fixing the scaffolding section 14 to the first bracket 111 or the second bracket 112. The lower end of the scaffolding section 14 is in contact with the upper end of the fish tank frame 15, and the structure is such that the fish tank frame 15 also bears a portion of the load applied to the scaffolding section 14. For this purpose, the lower end of the scaffolding section 14 is shaped to conform to the outer diameter of the fishpond frame 15.

[0037] In the above embodiment, a gas inlet and a water outlet are provided on the fish tank frame to create a floating fish tank. The inlet and outlet may be omitted to create a fish tank without a floating function. The gas inlet functions as a gas outlet when discharging gas from the fish tank frame, and the liquid outlet functions as a water inlet when filling the fish tank frame with water. [Explanation of symbols]

[0038] 1 Fish tank 11 brackets 51 Support hole 52 Support part 55 recess 54 Through-holes for inserting ropes 16. Tube for supplying gas 13 Reticular 12 support frames 14 Scaffolding Section

Claims

1. A fish tank frame having a hollow section, Multiple brackets for mesh-like structures are provided on the fish tank frame, A support frame for a mesh-like body supported by multiple brackets, A scaffolding section positioned between multiple brackets, A fish tank having a mesh-like body supported by the aforementioned support frame, The bracket has a support hole for a support frame that supports the mesh-like body and a support part that supports the scaffolding part. The bracket is plate-shaped and extends in a direction intersecting the extending direction of the fishpond frame. The bracket has an upper end that protrudes upward from the fishpond frame and has an arc-shaped recess at its upper end that accommodates the lower end of the fishpond frame stacked on top of it, and the lower end is the same width as the fishpond frame and is cut out in a shape that conforms to the outer shape of the fishpond frame. The support frame has a shape with multiple corners in a plan view. The bracket and the fishpond frame are made of thermoplastic resin, and the lower end of the bracket and the fishpond frame are fixed together by molten thermoplastic resin.

2. The fish tank according to claim 1, wherein the support frame has a structure in which a synthetic resin layer is applied to the surface of a metal pipe or rod, and the mesh-like body is made of a metal material.

3. The fish tank according to claim 1 or 2, wherein the support frame is fixed to the bracket so as not to rotate relative to the bracket.

4. The fish tank is further equipped with a bracket separate from the aforementioned bracket, The fish tank according to claim 1 or 2, wherein the other bracket has a portion in which the edge of the upper end protrudes from the scaffolding portion at a height of 0 to 3 cm.

5. The fish tank according to claim 1 or 2, wherein the bracket and the fish tank frame are made of polyethylene.

6. The fish tank frame has a first chamber, a second chamber, a third chamber, and a fourth chamber, The third and fourth chambers are filled with gas. The first chamber and the second chamber are configured to adjust the buoyancy of the fish tank by filling them with gas or water, according to claim 1 or 2.

7. The fish tank frame further comprises a fifth chamber and a sixth chamber, The fifth and sixth chambers have a smaller volume than the first, second, third, and fourth chambers, and the fifth and sixth chambers are filled with gas or water to adjust the buoyancy of the fish tank when the weight of the fish tank increases, according to claim 6.

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