JP2551721Y2 - Buoyancy adjustable float - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a buoyancy-adjustable float that is used in the field of fishery, particularly in the field of fixed net fishing offshore, and that can easily and quickly raise and lower water.

[0002]

2. Description of the Related Art Pulling nets, gill nets, fixed nets, roll nets,
Floats used for fish nets such as nets, and also for aquaculture nets, trunk nets, ikes, etc., effectively open the net mouth by the floating action of the float itself, keep the net normal, In addition to playing a role in keeping the side nets normal or keeping the mesh correct, it also plays a role in checking the arrangement of the fish nets. Further, in the case of aquaculture nets, ikes, etc., the float is provided with a floating / sinking function so that the cultivation nets, ikes, etc. are settled in the sea as appropriate when the weather conditions are severe. (See Japanese Patent Publication No. 52-14197)

[0003]

[Problem to be solved by the invention] Japanese Patent Publication No. 52-1419
The conventional aquaculture apparatus described in Japanese Patent Publication No. 7 is intended to freely control ups and downs by an adjustable buoyancy chamber having a seawater inlet and an air inlet. However, this adjusted buoyancy chamber is one in which a floating body is formed integrally with a fixed buoyancy chamber, which is another buoyancy chamber, and is different from a single float, and since the seawater entrance is a normal opening, If the device is greatly inclined due to waves due to weather conditions or the like, air entering from the air inlet / outlet at the top of the device may escape from the seawater inlet / outlet, and a situation may occur in which the floating and sinking of the device cannot be controlled.

Conventionally, in the set net fishing method, especially in Hokkaido, the float is detached from the rope from mid-November to December, when the fishing season ends, and only the side body rope is submerged on the seabed. The side rope was lifted off the seabed, and a float was attached to the rope. However, it is not easy to attach and detach a large number of floats under severe wind and snow, and this solution has been desired. Accordingly, the present inventor has conducted intensive studies in view of such a conventional problem, and as a result, found that the above problem can be solved by installing a water or air inlet / outlet of the float at a specific position. Is reached.

[0005]

That is, according to the present invention,
A floating type float having a hollow structure and a structure in which the inside is divided into a plurality of chambers by a plurality of partition plates, and has at least two or more water or air ports, and the water or air port is provided. And a buoyancy-adjustable float, which is provided at a position close to the end plate of the body portion or at the end plate portion and symmetrical with respect to the center of the float main body.

[0006]

The buoyancy-adjustable float according to the present invention has two or more pieces of water at a point close to the end plate of the body of the float body of the hollow structure or at a point symmetrical position with respect to the center of the float body. or it is characterized in that the entrance of air is provided. By using the buoyancy-adjustable float of the present invention, especially in cold nets such as Hokkaido, the difficult task of attaching and detaching a large number of floats to and from the rope on the side body in severe cold seas This makes it possible to easily and quickly settle and float the facility, which can greatly contribute to rationalization of fixed net fishing.

As shown in FIG. 6, a fixed net is formed by connecting a number of floats 1 to a side body rope 7 and enclosing the side body 8.
The key points are fixed underwater by anchors. A fixed net is formed by connecting a net 9 to the inside of the enclosure 8 of the side body. In addition, by controlling the amount of water introduced into the float, the buoyancy of the float can be adjusted, thereby minimizing or minimizing the effects of wave force and wave motion (not swinging by waves). ), For example, without adversely affecting aquaculture.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in more detail below with reference to the illustrated embodiments, but the present invention is not limited to these embodiments. FIGS. 1 and 2 show an embodiment of a buoyancy-adjustable float according to the present invention, in which a portion of the body 2 of the float 1 close to the end plate 3 is positioned with respect to the center of the float 1.
Water or air ports (hereinafter, referred to as the ports) 4, 4 'are provided at symmetrical positions. The interior of the float 1 is partitioned into a plurality of rooms by a partition plate 5 as shown in FIG. 5 as an example, and a plurality of holes 6 are provided in the partition plate 5 to improve the flow of air or water. Have been. The entrances 4 and 4 'of the buoyancy-adjustable float 1 are
It is preferable to provide a plurality of them because the swing of the float 1 can be reduced when water or air flows in and out, and the water or air can be quickly moved in and out. In addition, the entrance 4,
If a valve or a cock is provided in 4 ', the operation at the time of inflow and outflow of water or air can be facilitated.

Further, since the entrances and exits 4 and 4 'have the same structure and are provided at point-symmetric positions with respect to the center of the float main body, either the exit or the entrance can be used freely. In the case of discharging the water in the float 1, after opening the entrances 4 and 4 ', the float is hung on the hoist with the ropes 7 and 7' on one side of the float, and the float is lifted from the entrance 4 '. If the water is drained and the entrances 4, 4 'are closed,
The float can have buoyancy. Here, the entrances 4 and 4 'are portions of the body 2 close to the end plate 3 (FIGS. 1 and 2).
Or the point with respect to the center of the float body of the head 3
Since they are provided at symmetrical positions (see FIGS. 3 and 4),
The water in the float can be completely drained. Also,
In the case where water flows into the float, the float can be lifted in the same manner as described above, and the float can be settled by injecting water into the float from the entrance 4 ′. Furthermore, by introducing the water part in the float 1, together with adjusting the buoyancy of the float 1, resistance to wave power, that is, can not to move significantly by the waves, for example, farming facilities and equipment, such as scallops Can be kept upset.

[0010]

As described above, the buoyancy-adjustable float according to the first aspect of the present invention has a strong structure of the float, and is not damaged by vibration or shaking due to waves or the like. Can be easily drained or injected in a short time, and in the fixed net fishing method, it is possible to sink the float on the seabed with the float attached to the rope. It is not necessary to attach and detach the tub, and the operation can be performed easily and quickly. Also, by introducing a part of the water into the float, the buoyancy can be adjusted and the facility such as a fixed net can be floated at a predetermined position. In addition, if the buoyancy-adjustable float of the present invention is used for aquaculture nets, trunk nets, ikes, etc., in addition to fixed net fishing, it can quickly sink the nets, ikes, etc. into the sea when sudden changes in weather conditions. it can.

[Brief description of the drawings]

FIG. 1 is a schematic plan view of an embodiment of the present invention.

FIG. 2 is a cross-sectional view of FIG.

FIG. 3 is a cross-sectional view of another embodiment of the present invention.

FIG. 4 is a cross-sectional view of another embodiment of the present invention.

FIG. 5 is a diagram of an example of a partition plate provided on a trunk.

FIG. 6 is an explanatory diagram of an example of a fixed network.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Float 2 Body 3 End plate 4, 4 'Water or air inlet / outlet 5 Partition plate 6 Hole 7, 7' Rope 8 Side body enclosure 9 Net

Claims (1)

(57) [Scope of request for utility model registration] 1. A floating type float having a hollow structure, wherein the interior is divided into a plurality of chambers by a plurality of partition plates, wherein the float has at least two or more water or air ports. or entrance of air, a portion close to the end plate of the barrel or a plate portion, with respect to the center of the float body
A buoyancy-adjustable float characterized by being installed at point-symmetric positions.