JPS5920056Y2 - Stationary float - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a stationary float, and more specifically, the present invention has a hollow portion formed with a number of sealed independent spaces, and partition walls for the sealed compartments. This stationary float has a reinforcing effect against water pressure from multiple directions.

Fixed nets are used to catch schools of fish migrating on the tidal currents by intimidating, guiding, and trapping them, so they are installed in relatively open ocean where the tides circulate well, and the water depth is 30 to 100 m.
It is located in a relatively deep sea area extending over 3000 m.

The fixed net is firmly fixed with a large amount of anchoring devices such as concrete anchors, metal anchors, ring dowels, etc. to prevent it from slipping or being washed away from its fixed place due to sudden tides, waves, etc.

On the other hand, when expanding nets, one end is suspended from a side net floating above the sea surface, and the other end is submerged in the sea, so the nets are large and multilayered. Many large and highly buoyant floats are used to hold the float suspended.

The floats currently used for stationary use are hollow spherical or pillow-shaped floats made of corrosion-resistant metal materials such as aluminum and stainless steel, or strong synthetic resin materials such as ABS resin and glass-reinforced polyester resin. However, when resistance due to sudden tides or waves is added to the netting, the floats suddenly become unstable due to the action of the total anchoring force that is absolutely greater than the total buoyancy force for suspending the netting. As the floats are pulled deep into the sea and are subject to instantaneous water pressure equivalent to 10 atmospheres in some cases, an extremely large number of floats rupture or break. Due to the addition of resistance such as this, the sea surface is repeatedly floated and submerged, resulting in severe water pressure fluctuations, which leads to fatigue embrittlement of the material and makes it easy for cracks and micropores to occur in various places. If this occurs, seawater will enter the hollow part of the float for a short period of time, causing a loss of buoyancy, resulting in deformation of the net spread, or in severe cases, obstructing the net spread, resulting in the inability to catch fish.

However, there are many problems inherent in the current stationary floats, such as the fact that the cracks and pores are often missed by fishing machines because they are detected late.

The present invention provides a stationary float that solves this problem, and the embodiments of the present invention will be described below in detail based on the drawings. The figure is an explanatory diagram of an elliptical partition plate, and FIG. 3 is an explanatory diagram of a partition wall body. The float body 1 is made of a corrosion-resistant metal material such as aluminum or stainless steel, or a strong synthetic resin material such as ABS resin or glass-reinforced polyester resin. The body 11 of the float body 1 has handles 12 or ribs (not shown) for tying ropes at arbitrary locations as necessary.
are integrally formed.

The float body 1 is formed into symmetrical halves, and the method of joining them together and the body part 11 and the side lid part 1 are explained.
There is a method of molding each of the parts 3 individually and then combining them with each other, but the present invention is not limited to either method.

In the hollow part 2 of the float body 1, as shown in FIG. 2, there is a compartment formed by fitting elliptical partition plates 4, 4' with fitting slits 41 and 41' at right angles to each other. A wall body 5 is mounted in close contact with the inner wall 3 of the hollow portion.

The elliptical partition plates 4, 4' constituting the partition wall 5 are not subject to any particular restrictions as long as they are made of strong materials that can be welded or adhered to each other and to the inner wall 3 of the hollow part, and their thickness is similar to that of the float. It is determined as appropriate based on the relationship between the pressure resistance strength of the body 1 and the water pressure expected in actual use.

Furthermore, fitting slits formed in the oval partition plates 4, 4')
41.41' is a length extending from one end of the radius vector to approximately the center thereof at a position corresponding to the abbreviation of the major axis, and the gap of 41.41' is the fitting slit. It is formed to have a thickness corresponding to that of the plates 4 and 4'.

The edges 42 and 42' of the elliptical partition plates 4 and 4' fitted at right angles are tightly fitted to the inner wall 3 of the hollow part as shown in FIG. , 4' is equal to the length between A and A, that is, the diameter of the inner wall of the hollow part, and its longer axis is approximately 1 of the length between B and B, that is, the diameter of the inner wall of the hollow part.
．． 414 times is required, and the so-called ellipticity is approximately 1.41.
It becomes 4 times.

The elliptical partition plates 4, 4' have a fitting part 43 and a close contact part 44 with the inner wall 3 of the hollow part 3, which are firmly joined by welding or adhesion, and have a large number of independent spaces each sealed inside the hollow part 2. 6 is formed.

FIG. 4 shows a cross-sectional view of a spherical float according to the present invention, and when the present invention is used for a spherical float, the float body 1
Circular partition plates 4A, 4A' are used in the hollow part 2A of A, and a partition wall body 5A formed by fitting these plates at right angles is tightly mounted on the inner wall 3A of the hollow part.

That is, in order for the edges 42A, 42A' of the circular partition plates 4A, 4A' fitted at right angles to be closely joined to the inner wall 3A of the hollow part, the respective lengths must be between C and 0 and between D and D. It is understood that a circular partition wall plate is used because the length corresponds exactly to the diameter of the hollow inner wall 3A.

Also in the case of a spherical float, the circular partition plates 4A, 4
The fitting part 43A of A' and the close joint part 44A with the hollow inner wall 3A are firmly joined by welding or adhesion to form a large number of sealed independent spaces 6A within the hollow part 2A. .

The present invention has the above-mentioned structure, and is a pillow-shaped or hollow molded material made of a corrosion-resistant metal material such as aluminum or stainless steel, or a strong synthetic resin material such as ABS resin or glass-reinforced polyester resin. A partition wall body formed by fitting a circular partition plate or a circular partition plate into the hollow part of a spherical float body is tightly loaded to the inner wall of the hollow part,
In addition, the fitting part of the oval partition plate or the circular partition plate and the close contact part with the inner wall of the hollow part are firmly joined by welding or adhesive, and a large number of independent spaces each sealed and partitioned are formed in the hollow part of the float body. Because of this, even if water pressure that exceeds the pressure resistance of the float is applied, the compartment walls that are tightly packed inside will provide sufficient reinforcement to prevent rupture or rupture.
Not only can damage be prevented, but especially in the case of pillow-shaped floats, the body, which is considered to be the weakest in terms of structural strength, can be extensively reinforced, and its length has been increased to about 1.5 times the diameter of conventional floats. What used to be limited in length can now be made to be at least three times as long, which can greatly contribute to increasing buoyancy.

In addition, in the present invention, even if the float is pulled underwater in any condition, it can resist water pressure from almost all directions by loading the partition walls, so the durability and usability of the float can be further improved.

Furthermore, in the present invention, since the hollow portion is formed into a large number of independent spaces that are each sealed and partitioned by loading the partition wall, even if cracks or micropores occur due to fatigue embrittlement of the material due to long-term use, such cracks and pores will not occur. Since a decrease in buoyancy can be prevented only by flooding the independent space corresponding to the micropores, it has excellent features such as being able to detect deformation or inability to spread the net fabric before it occurs.

[Brief explanation of the drawing]

Fig. 1 is an explanatory cross-sectional view of a pillow-shaped float according to the present invention, Fig. 2 is an explanatory view of an elliptical partition plate, Fig. 3 is an explanatory view of a partition wall, and Fig. 4 is an explanatory cross-sectional view of a spherical float according to the present invention. FIG. 5 is an explanatory view of a circular partition plate, and FIG. 6 is an explanatory view of the same partition wall. Explanation of symbols 1, 1A...Float body, 4A, 4A
'...Circular partition plate, 2,2A...Hollow part, 41.41A...Fitting slit, 3,3A
..... Hollow part inner wall, 42, 42A .... Edge, 4, 4' ... ... Oval partition plate, 43, 43
A...Concave fitting part, 44.44A...Tight part, 5
, 5A... Same compartment wall, 6, 6A... Independent space.

Claims (1)

[Scope of utility model registration request] Corrosion-resistant metal materials such as aluminum and stainless steel or A
In a pillow-shaped or spherical float formed into a hollow shape using a strong synthetic resin material such as BS resin or glass-reinforced polyester resin, a circular float is formed in which a fitting slit is formed in each hollow part of the float. Alternatively, a partition wall body formed by fitting circular partition plates at right angles to each other is tightly loaded to the inner wall of the hollow part, and the fitting part of the partition plate and its edge and the inner wall of the hollow part are tightly packed. 1. A stationary float, characterized in that the close contact portion is firmly joined by welding or adhesion to form a large number of independent spaces, each of which is hermetically divided, within a hollow portion of the float body.