JP3135630U - Overturning automatic restoration device for fishing boats, etc. - Google Patents

Abstract

An automatic capsizing / recovering device for a fishing boat or the like is provided which refers to the relationship between the center of gravity and buoyancy when a submarine ascends to the surface of the water.
The place above the ship deck is selected as much as possible where there is no hindrance to the operation of the ship, and the capsizing of the ship is restored using a light and strong buoyant material such as polystyrene foam.
[Selection] Figure 2

Description

  Shipbuilding technology

  Refer to the relationship between the center of gravity and buoyancy when the submarine surfaced on the surface.

Problems that the device tries to solve

  In general, if a ship tilts more than 90 degrees in the event of an accident or the like, it will sink or remain capsized, and human lives are often lost. This is a force majeure and is not a design problem, but it can be restored.

Means for solving the problem

  In this plan, the place above the ship's deck is selected as much as possible where there is no hindrance to the ship's operation, and even if the ship rolls over, it will be restored immediately by using a light and strong buoyant material such as polystyrene foam. What I did.

Effect of device

  Even if a ship capsizes, it can be restored on its own to help save lives.

  Small fishing boats, etc.

Although there is no example, submarine is helpful, submarine is always underwater and its buoyancy center point is always above the center of gravity of the ship, even if it capsizes, it will immediately rotate 180 degrees and be restored To do.
In the experiment with 1/20 boat model, see Fig. 1, in 2 seconds. It was confirmed that it was restored while submerged.

Can be remodeled at small and medium yard.

  The three-dimensional figure at the time of attaching the umbrella type buoyancy restoration device made from an aluminum pipe to the small fishing boat without a bridge in the present invention.   The horizontal cross-sectional view of the starboard side of the buoyancy restoration apparatus of FIG.   Side view of a large fishing boat with a bridge

Explanation of symbols

1 Small fishing boat 2 Enclosed with foamed polystyrene, indicated by slanted walls.
3 Thick aluminum pipe for attaching the umbrella type of buoyancy material to the hull 4 Fishing boat starboard 5 Large fishing boat body 6 Attach the buoyancy material to the drip site on the wall around the window of the bridge.
7 Buoyant material attached to the inner and outer surfaces of the heel to help lift the buoyant rotation from the water

  Shipbuilding technology

  Refer to the relationship between the center of gravity and buoyancy when the submarine surfaced on the surface.

Problems that the device tries to solve

  In general, if a ship tilts more than 90 degrees in the event of an accident or the like, it will sink or remain capsized, and human lives are often lost. This is a force majeure and is not a design problem, but it can be restored.

Means for solving the problem

  In this plan, the place above the ship's deck is selected as much as possible where there is no hindrance to the ship's operation, and even if the ship rolls over, it will be restored immediately by using a light and strong buoyant material such as polystyrene foam. What I did.

Effect of device

  Even if a ship capsizes, it can be restored on its own to help save lives.

  Small fishing boats, etc.

Although there is no example, submarine is helpful, submarine is always underwater and its buoyancy center point is always above the center of gravity of the ship, even if it capsizes, it will immediately rotate 180 degrees and be restored To do.
In the experiment with 1/20 boat model, see Fig. 1, in 2 seconds. It was confirmed that it was restored while submerged.

Can be remodeled at small and medium yard.

  In the case of a small boat in the form of the present invention, an umbrella shape is formed with four aluminum pipes of about 4 cm, and a 20 cm thick polystyrene plate is attached to it and wrapped with a cloth gum tape. Install the buoyancy restoration device 1 in the form of a roof hardened with waterproof paint,   Cross-sectional view of a buoyancy device mounted on a boat 1, is an aluminum pipe, 2, is a polystyrene foam, 3, is a cloth tape 4, is the body of a small boat   5 is the main body of a fishing boat with a displacement of about 15 tons, 6 is a buoyancy material attached outside the ship's bridge, 7 is a buoyancy material affixed to the inner side of the ship's anchor, If it can be installed on the outside, strong restoring force can be obtained, and it can be useful as a buffering action when berthing.   8 is the sea level, and the boat is submerged by tilting about 80 degrees. 9 and 10 are schematic diagrams showing the restoring force of 200 to 300 kilograms.   8 indicates the sea level, and the fishing boat is submerged at an angle of about 80 degrees. The arrows 11, 12, and 13 are schematic diagrams showing that a total of about 2 tons of buoyancy acts as a restoring force.

Explanation of symbols

1 Small fishing boat 2 Enclosed with foamed polystyrene, indicated by slanted walls.
3 Thick aluminum pipe for attaching the umbrella type of buoyancy material to the hull 4 Fishing boat starboard 5 Large fishing boat body 6 Attach the buoyancy material to the drip site on the wall around the window of the bridge.
7 Buoyant material attached to the inner and outer surfaces of the heel to help lift the buoyant rotation from the water

Claims (1)

Ordinary fishing boats, etc. have a structure that cannot be restored when overturned due to an accident or shear waves. In this plan, the foam wall is light and strong on the bridge wall above the water surface of the ship. By fixing the thick plate with a thin aluminum plate or strong cloth tape, etc., the ship's buoyancy is designed to be below the center of gravity when the ship is overturned. An improved structure in which the ship rotates and rises within ten seconds even if the ship capsizes, and the crew members are not dead.

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