JP2682776B2 - Anti-vibration wing for ships - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of an anti-vibration wing projecting from the port side to the lateral water in order to suppress rocking of the hull of a small vessel such as a patrol vessel when it is stopped on the ocean.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 6, a swaying blade made of fiber reinforced resin is installed on a small boat as shown in FIG.
The stiffener 63, which is combined in a grid shape in a plan view, is provided in the space formed by 1 and the bottom plate 62.

[0003]

However, the above conventional damping blade has a large weight and a high rigidity. Therefore, when a large wave force is received, the force cannot be absorbed, a large load is applied to the attachment portion to the hull, and the hull is damaged. In addition, there is a problem that the high-stabilization blade has a smaller effect of suppressing the swing of the hull as compared with the flexible and flexible blade.

The present invention solves the above problems, is lightweight and flexible, can absorb wave forces, and can reduce the load applied to the mounting portion of the swinging blade. It is an object of the present invention to provide a ship anti-vibration wing with a high hull damping effect.

[0005]

In order to solve the above problems, the first means of the marine anti-vibration wing according to the present invention is a support fitting rotatably attached to a hull via a horizontal support shaft. And a wing body to which a base is attached to the support fitting, and the wing body is provided with a substrate arranged at the center of the wing and coated with fiber reinforced resin on both sides, and a plurality of fiber reinforced on both sides of the base of the substrate. A top plate and a bottom plate made of fiber reinforced resin that form a root part in which resin plate materials are laminated and further form an outer surface of the wing body with a wing space between the board and the wing, and the wing. A wing portion is formed with a thickening core material filled in a space, and the thickening core material is made of a lightweight and flexible resin.

The second means is composed of a support metal fitting which is rotatably attached to the hull via a horizontal support shaft, and a wing body whose base is attached to the support metal fitting. A substrate arranged in the center and coated with a fiber-reinforced resin is provided on one side, and a root portion is formed by laminating a plurality of fiber-reinforced resin plate materials on the fiber-reinforced resin coated surface of the base portion of the substrate, and further the substrate The outer surface of the fiber-reinforced resin that forms the outer surface of the blade body via the blade space between the fiber-reinforced resin-coated surface and the core portion for thickening filled in the blade space to form the blade portion. The thickening core material is made of a light and flexible resin.

[0007]

With the above structure, the strength of the root portion can be increased, the flexibility (flexibility) of the wing portion can be improved, and the weight can be reduced, and the wave force can be absorbed by the bending of the wing portion. Thus, the swing of the hull can be suppressed, and the load transmitted to the hull via the support metal fittings and the support shaft can be reduced to prevent the swinging blade mounting portion from being damaged.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the marine anti-vibration blade according to the present invention will be described below with reference to FIGS.

As shown in FIG. 3, the anti-vibration wing 1 for a ship is rotatably movably via a support shaft 3 in the aft-stern direction in an anti-vibration wing mounting recess 2a formed on the port side of a hull 2. The swing cylinder device 4 is supported and can swing the swinging blade 1 in the directions of arrows A and B through a swing lever 5 between a storage position in which the swing wing 1 faces vertically upward and a use position in which the swing wing 1 projects in the horizontal direction. .

As shown in FIG. 1, the swinging wing 1 includes a wing body 6, a body 7a having a U-shaped cross section which is externally fitted to the base of the wing body 6, and a bracket 7b to which the support shaft 3 is fitted. The blade main body 6 is fixed to the main body 7a of the supporting metal fitting 7 via a plurality of mounting bolts 8. As shown in FIG. 2, the wing body 6 includes a substrate 11 arranged centrally over the entire body, a root portion 12 provided on the base portion, and a wing portion 13 on the tip side of the root portion 12.

The substrate 11 is formed by applying a surface material 22 made of fiber reinforced resin (hereinafter abbreviated as FRP) to both upper and lower surfaces of a flat plate 21 having a relatively high strength such as aluminum. The wing part 13 is a top plate 23 made of FRP, which forms a streamlined outer surface and both side surfaces of the damping blade 1 on the upper and lower surfaces of the substrate 11.
And a bottom outer plate 24 are provided, and inside the wing space 25,
26 are formed. The blade spaces 25, 26 are filled with a thickening core material 27 made of a light-weight and flexible resin, that is, vinyl chloride foam or the like. Reference numeral 28 is a tip portion of the wing body 6 and the base plate 11 and the top plate 23.
And an FRP protective material that covers the joint portion of the bottom outer plate 24.

In the manufacturing procedure, the surface material 2 of the substrate 11 is used.
After arranging the thickening core material 27 formed in a blade space shape on the upper surface 2, FRP is applied to the surface of the thickening core material 27 to cure it, and the top outer plate 2
3 and the bottom skin 24 are formed. This thickening core material 27
Can be integrated, but a combination of a plurality of divided core material blocks can be manufactured at low cost.

The root portion 12 is a surface material 22 of the substrate 11.
A plurality of FRP plates 30b are vertically adhered and laminated via an FRP plate 30a extending from the base end portions of the top part outer plate 23 and the bottom part outer plate 24 (a plurality of plies) to secure a necessary thickness, Furthermore, the upper and lower surfaces, side surfaces and front surface are FRP
It is covered with a resin cover 30c made of aluminum to ensure a lightweight and high-strength structure. A bolt hole 3 is provided at a predetermined position of the root portion 12.
1 is formed in the vertical direction, and the mounting bolt 8 to be mounted on the main body 7a of the support fitting 7 is inserted into the bolt hole 31.

According to the above-mentioned structure, (1) the inside of the wing portion 13 of the damping blade 1 is made of a lightweight thickening core material 27.
Only because there is no stiffener like in the past,
The weight of the swinging wing 1 can be reduced. Therefore, even if the hull 2 is equipped with the anti-vibration wing 1, the hull weight will not be increased so much. (2) By changing the thickness and material of the thickening core member 27, the bending rigidity of the damping blade 1 can be easily changed, and a blade having high flexibility to a blade having high rigidity can be easily designed and manufactured. can do. (3) Substrate 11 having a relatively high strength as a core material of the vibration damping blade 1.
Since it is arranged, it will not be broken or cut by a large wave force. (4) Since the root portion 12 of the swinging blade 1 is composed of the plural-ply FRP plates 30a to 30c, high strength is obtained and the mounting portion of the mounting bolt 8 is not broken by wave force.

Next, a second embodiment will be described with reference to FIGS. This damping wing 41 is the damping wing 1 of the first embodiment.
By omitting one side of, it is possible to manufacture more easily,
The same members as those in the first embodiment are designated by the same reference numerals, and the description thereof will be omitted.

That is, the substrate 42 is formed by applying a surface material 42b made of FRP to the upper surface of a flat plate 42a made of FRP which has already been molded and cured and has strength. Also the wings 43
Is a flat plate-shaped outer plate 45 made of FRP disposed on the upper surface of the substrate 11 via a wing space 44.
The wing space 44 between b is filled with a thickening core material 46 made of, for example, vinyl chloride foam. Reference numeral 47 is an FRP protective material that covers the joint between the substrate 42 and the outer plate 45 at the tip of the wing body 6. Further, the root portion 48 secures a necessary thickness by bonding and stacking a plurality of FRP plates 49 in the vertical direction between the surface material 41 of the substrate 42 and the base portion of the outer plate 45 (a plurality of plies). The entire front surface including the flat plate 42a and the outer plate 43 and the side surfaces are covered with a resin cover 50 made of FRP to ensure a lightweight and high-strength structure.

In the manufacturing procedure, of course, after the thickening core material 46 formed in the shape of the wing space 44 is fixed on the surface material 42a of the substrate 42, FRP is applied to the surface of the core material 46 to cure it, The plate 45 is formed. As the thickening core material 46, an integral type or a combination of a plurality of divided core material blocks is used.

According to the second embodiment, as compared with the first embodiment, the lamination molding of the thickening core member 46 and the outer plate 45 can be performed on one side, and therefore, in addition to the effect of the first embodiment. Therefore, the manufacturing time and the manufacturing cost can be significantly reduced.

[0019]

As described above, according to the present invention, the blade main body of the damping blade is formed of a plurality of fiber reinforced resin plates laminated on a root and attached to a supporting metal member, a substrate and a fiber reinforced resin. Since the wing space between the top skin and the bottom skin is filled with a lightweight and flexible thickening core material, the strength of the root can be increased and the wing flexibility can be increased. The flexibility (flexibility) can be further improved, the weight can be reduced, the wave force can be absorbed by the bending of the wings to effectively suppress the swinging of the hull, and the support metal fittings and the support It is possible to reduce the load transmitted to the hull via the shaft and prevent the swinging blade mounting portion from being damaged.

Further, by providing the thickening core material and the outer plate only on one surface of the substrate, it is possible to reduce the manufacturing time and the manufacturing cost.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view showing a first embodiment of a damping blade according to the present invention.

FIG. 2 is a longitudinal sectional view of the vibration damping blade.

FIG. 3 is a perspective view showing a mounted state of the vibration damping blade.

FIG. 4 is a partially cutaway perspective view showing a second embodiment of the damping blade according to the present invention.

FIG. 5 is a vertical sectional view of the vibration damping blade.

FIG. 6 is a cutaway perspective view showing a conventional damping blade.

[Explanation of symbols]

 1 Decay Wing 2 Hull 3 Support Shaft 6 Wing Main Body 7 Support Metal Fitting 8 Mounting Bolt 11 Base Plate 12 Root 13 Wing 23 Top Plate 24 Bottom Plate 25,26 Blade Space 27 Thickening Core 30a, 30b FRP Plate 30c Resin cover 41 Vibration suppression blade 42 Substrate 42a Flat plate 43 Wing portion 44 Wing space 45 Outer plate 46 Thickening core material 48 Root portion 49 FRP plate

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Mikiharu Fujiki 5-3, Nishikujo 5-chome, Konohana Ward, Osaka City, Osaka Prefecture Hitachi Shipbuilding Co., Ltd. (56) Reference JP-A-5-309763 (JP, A) Actual development Sho 59-27988 (JP, U) Actual development Sho 57-20396 (JP, U)

Claims (2)

(57) [Claims] 1. A support metal fitting rotatably attached to a hull via a horizontal support shaft, and a wing main body having a base attached to the support metal fitting. The wing main body is arranged at the center of the wing. A substrate coated with fiber-reinforced resin is provided on both sides, and a root portion is formed by laminating a plurality of fiber-reinforced resin plate materials on both sides of the base portion of the substrate, and a blade is formed between the substrate and a blade space via a blade space. The top and bottom skins made of fiber reinforced resin that form the outer surface of the main body, and the thickening core filled in the blade space form a blade, and the thickening core is lightweight. An anti-swing wing for ships, which is made of flexible resin. 2. A support fitting, which is rotatably attached to a hull via a horizontal support shaft, and a wing body having a base portion attached to the support fitting. The wing body is disposed at the center of the wing. A substrate coated with fiber reinforced resin is provided on one surface, and a root portion is formed by laminating a plurality of fiber reinforced resin plate materials on the fiber reinforced resin coated surface of the base portion of the substrate, and further the fiber reinforced resin coating of the substrate is applied. The outer wall made of fiber-reinforced resin that forms the outer surface of the blade main body through the blade space between the surface and the surface, and the thickening core material filled in the blade space to form a blade portion, and the thickening An anti-vibration wing for ships, characterized in that the core material is made of a lightweight and flexible resin.