JPH0513172Y2 - - Google Patents

Description

[Detailed description of the invention] <Industrial application field> This invention facilitates the manufacture of a floating device for hoisting up seaweed nets set out on the sea for seaweed cultivation, and also allows for the easy installation of bottom line. The present invention relates to a device that does this.

<Prior Art> Regarding a seaweed net for marine aquaculture, there is Japanese Patent Publication No. 2-34576, which was previously proposed by the applicant. This publication includes a semicircular floating board and a support shaft installed at a deflection point near the straight part of the floating board to form a plurality of raising/lowering floats to be attached under both ends of a seaweed net, and A hanging piece with a hole is attached to the straight part and the bottom of each of the floating platforms, and a bottom pull line is stretched by passing it through the hole of each hanging piece, and the bottom pull line is pulled by a weight and loosened. A method for automatically exposing the seaweed net is described, in which each floating device is raised and lowered to expose the seaweed net above the sea surface at low tide, and sink below the sea surface at high tide.

<Problems to be solved by this invention> However, the publication discloses that the raising and lowering floats are deviated toward the straight part of the floating platform and the support shaft is installed as one body, and that The protruding hanging pieces make it difficult to manufacture floating devices.
In addition, since a long bottom wire is stretched by passing it through a hole in a hanging piece provided on the straight portion and bottom of each floating platform, there is a problem in that it is difficult to tension the wire.

<Means for Solving the Problems> The present invention consists of inserting a floating device for raising and lowering into a semicircular floating board having a partially flat peripheral surface and a vertical hole provided in the center of the floating board. a supporting shaft that is attached to the floating surface and inclined toward the flat circumferential surface side, and is provided with an insertion groove for a bottom drawing line that longitudinally traverses the center of the flat circumferential surface of the floating board and crosses the bottom surface; The present invention attempts to solve this problem by providing a hook piece for the bottom drawing line.

<Example> Examples will be described below based on the drawings.

Side edge line 8a of seaweed net 8 having side edge lines 8a on both sides
Floating bamboos 9 are installed at intervals on the lower surface of each floating bamboo 9, and the upper end of a support shaft 5 with a floating board 1 inserted at the lower end under both ends of each floating bamboo 9 is tied up using a tie string 10. Each floating board 1
is formed in a semicircular shape in plan view with a flat circumferential surface 4a in part, and the flat circumferential surface 4a is directed toward one side in the extending direction of the side edge line 8a, as shown in FIG. The support shaft 5 is located at the center of the floating platform 1, as shown in FIG.
A straight-shaped shaft insertion part to be inserted into the vertical through hole 2 provided at J', and a bulged node at the upper end of the shaft insertion part are inclined to one side, with the inclined part facing the flat circumferential surface 4a side. It is installed so that the upper end is above the S' position of the floating board 1. The upper end of the support shaft 5 is concavely bent so as to fit into the floating bamboo 9, and has a small groove 6 on the circumferential surface and lug pieces 7, 7 with stop holes on both sides. 7,
7 and the small groove 6 to tie it firmly by passing the knot 10 around it.

Each floating board 1 has a vertical groove 4 at the center of a flat circumferential surface 4a as an insertion groove for a bottom drawing line 12, and a bottom groove 3 connected to the vertical groove 4 on the bottom surface. The bottom groove 3 crosses the bottom surface with the vertical through hole 2 interposed therebetween. Further, a locking piece 11 is provided at the lower end of the shaft insertion part of the support shaft 5 facing the bottom groove 3 and in the same line as the bottom groove 3, and the bottom lead wires 12, 12 are fitted into one of the vertical groove 4 and the bottom groove 3. , and is hooked onto the hook piece 11 and stretched.

The side end lines 8a, 8a and the bottom pull lines 12, 12 are extended in parallel to the outside of both ends of the seaweed net 8, and are fastened to the floating main line 13 on the floating body 13a fixedly floating on the sea at the anchor line 14. The seaweed net 8 is stretched out over the sea by tying it freely.

When the bottom pull wires 12, 12 are pulled toward the anti-flat circumferential side of the floating platform 1 and tensioned, each floating device raises its support shaft 5 and spreads the seaweed net 8 as shown in FIG. When the floating devices are exposed above the sea surface and the towing of the bottom pull lines 12, 12 is loosened, the floating platform 1 of each floating device has a flat circumferential surface, and the support shaft 5 is inclined toward the flat circumferential surface 4a. In some cases, the floating platform 1
The whole seaweed net 8 falls to the side of the flat peripheral surface, and the seaweed net 8 is immersed above the sea surface as shown in FIG.

<Effects of the invention> As described above, in the present invention, the floating plate and the spindle of the floating device that performs the raising and lowering action are manufactured separately, and the spindle is inserted into the floating plate and assembled. This has the effect that a floating device with a support shaft can be manufactured very easily.

Since the lower half of the support shaft is formed at an angle based on the shaft insertion part, a vertical through hole can be provided in the center of the floating board, resulting in the effect that processing the shape of the floating board and the vertical through hole is extremely easy. .

By inclining the upper half of the support shaft toward the flat circumferential surface of the floating board, the effect of improving the self-inverting properties of the support shaft and the floating board is produced.

Since the insertion groove for the bottom lead wire is provided on the flat peripheral surface and the bottom surface of the floating board, the bottom lead wire can be tensioned by fitting it into the insertion groove, resulting in the effect that the bottom lead wire can be tensioned very easily.

The bottom end of the spindle is equipped with a hook for hooking the bottom pull wire, which prevents the bottom pull wire from coming out of the insertion groove, and also makes it possible to firmly maintain the attachment of the spindle and floating board. produce an effect.

[Brief explanation of the drawing]

Fig. 1 is a partially cutaway perspective view showing the configuration of the tilting float, which is the main part of the present invention, and Fig. 2 is a comparative view of the conventional float and the float of the present invention. Figure A is a plan view of the conventional product, B is a side view of the same, C is a side view of the present invention, Figure 3 is a partial side view showing the exposed state of the seaweed net according to the present invention, and Figure 4 is the same, on the seaweed. 1 is a floating board, 2 is a shaft hole, 3 is a bottom groove, 4 is a longitudinal groove, 4a is a flat circumferential surface, 5 is a support shaft, 6 is a small groove, 7, 7 is an ear piece , 8 is a seaweed net, 8a is a side edge line, 9 is a floating bamboo, 10 is a knot string, 11 is a hanging piece, 1
2 and 12 are bottom pull lines, 13 is a floating trunk line, 13a is a floating body, and 14 is an anchor line.

Claims (1)

[Scope of utility model registration request] A floating device for raising and lowering a floating device having a semicircular shape in plan view having a flat circumferential surface in part, and a support shaft that is inserted into a vertical hole provided at the center of the floating platform and tilts toward the flat circumferential surface. and a bottom pull line insertion groove extending vertically through the center of the flat circumferential surface of the floating board and across the bottom surface, and a hooking piece for the bottom pull line being provided at the lower end of the support shaft. Features: A floating device for supporting exposed seaweed nets.