KR20160009175A - A bulbous bow of a ship - Google Patents

Abstract

The present invention relates to a bulbous bow of a ship. In the bulbous bow comprised at a lower side in front of the ship, the bulbous bow of the ship according to the present invention includes: a main body part having a curved shape protruded forward; and a mat part forming an outer surface by being comprised at an outer side of the main body part. The mat part includes: a board part comprised to be able to be bent; and a pocket part which has one plane fixed to the board part, has volume changed by inflow and outflow of a fluid, forms the outer surface by being arranged adjacently to each other, and is combined to the main body part using the board part which is bent to correspond to the outer side of the main body part. The bulbous bow of the ship according to the present invention can optimize operation efficiency according to ship velocity of the ship, sea condition and freight loading state etc. by being able to change the shape or the size variously, without the need to enter the ship to a dock again. Also, the bulbous bow of the ship according to the present invention comprises the mat part having the board part able to be deformed to a curve and the pocket part having one plane attached to the board part, and can secure efficiency and convenience in manufacturing, by being able to maintain the state that the pocket part is attached to the board part, as another plane of the pocket part is spread out at a fixed gap, when the mat part is bent and attached to the main body part.

Description

{A bulbous bow of a ship}

The present invention relates to a contemplated athlete of a ship.

Generally, when a ship is operated, a regular wave occurs at aft and stern, which is called a wave resistance, and this wave resistance causes loss of operating energy of the ship. In order to minimize the harmonic resistance and increase the speed of the ship, most of the ships are equipped with bulbous bows or bowing braces.

The spherical athlete is formed of spheres of appropriate size and shape according to the linearity of the ship or the speed of the ship. When such a spherical athlete is installed on the slope of the bow, the bow generated by the wave resistance generates wave and wave interference generated by the spherical athlete. In other words, the waves generated at the slope of the bow are wavecancelled due to the waves generated by the spherical athlete.

Since the size or shape of the spherical athlete depends on the shape or speed of the ship, it is difficult to determine a uniform size or shape, and the size or shape of such a spherical athlete is slightly different depending on the draft of the ship. Therefore, the ball athlete is designed and manufactured to be optimized for the ship's operating conditions (line speed, draft, working load, etc.) and installed on the ship.

However, since the linearity of a ship equipped with a bow player does not change, it is inevitable to optimize for one design operating condition and there is a problem that an optimum shape for the design operating condition can not be achieved for optimization of various flight conditions. There is a limitation in reducing the operating energy loss of the ship due to the increase of the power consumption of the ship.

In order to solve this problem, when the target line speed is changed, the loss of the operation energy of the ship is reduced through the modification of the athlete. However, when the ship is modified, the ship is re-entered into the dock, .

Korean Patent Publication No. 10-1991-0006106 (published on April 27, 1991). Korean Registered Utility Model No. 20-0408695 (Registered on Feb. 7, 2006) Korean Patent Laid-Open No. 10-2009-0034004 (published on April 7, 2009). Korean Patent Publication No. 10-2013-0068306 (published on June 26, 2013).

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems of the prior art, and it is an object of the present invention to provide a concept player of a ship capable of changing its shape, size, etc. even at sea without re- .

It is also an object of the present invention to provide an apparatus and a method for manufacturing a high bulbous bow which has a bulb-shaped protrusion capable of controlling the protrusion and the protrusion length at the front upper end of the body, The present invention is intended to provide a contour of a ship capable of covering both low speed and high speed areas because a change to a high bulbous bow can be made simple.

It is another object of the present invention to provide a grille which is provided inside the main body and is capable of expanding or contracting and is made of a flexible material on the outer surface of the main body so that the shape of the main body can be freely changed by the grid, It is to provide players.

It is also an object of the present invention to provide an artificial bow of a ship in which the shape of the outer surface can be easily changed by changing the height of at least one of the bars by using a partial protrusion which is a plurality of rod bunches.

It is another object of the present invention to provide an air conditioner in which the outer surface of the main body is divisible into a plurality of block portions so that the block portion is widened while moving outwardly to enlarge the overall size, And is intended to provide a contemplated player of the vessel capable of varying the size.

It is another object of the present invention to provide a bag having a plurality of pockets which are expandable and contractible and whose volume is controlled by the infusion of fluid, on the outer surface of the main body so that the shape of the outer surface can be variously changed by controlling the supply of fluid to the bag. It is intended to provide a contemplated player of the ship.

It is another object of the present invention to provide a mattress which is provided with a matt portion in which only one surface of a bag portion is arranged on a bendable plate portion and the matt portion is molded so as to fit the curved surface of the main body portion, .

The spherical athlete of the vessel according to an embodiment of the present invention is a spherical athlete which is provided on the lower side from the front of the ship, the spherical athlete having a curved surface shape protruding forward; And a mat portion provided on an outer side of the main body portion to form an outer surface, wherein the mat portion includes a plate portion capable of being bent; And a bag part fixed to the plate part and having a variable volume due to the inflow and outflow of fluid and formed adjacent to each other to form the outer surface of the bag part. The bag part bent to correspond to the outer side of the body part, .

Specifically, the plate portion may be made of a stretchable material.

Specifically, the plate portion may be detachably coupled to the main body portion.

Specifically, the bag portion may have one surface fixed to the plate portion and the other surface forming the outer surface.

Specifically, when the plate portion has a planar shape, the bag portion may be arranged so that the corners of the one surface are adjacent to each other and the corners of the other surface are also adjacent to each other.

Specifically, when the plate portion has a curved shape, the bag portion may be arranged such that the corners of the one surface are adjacent to each other and the corners of the other surface are spaced apart from each other.

Specifically, the fluid control unit may further include a fluid control unit for controlling the flow of the fluid in the bag unit to vary the shape of the outer surface.

The spherical bow of the ship according to the present invention can optimize the operating efficiency according to the ship's line speed, sea condition, cargo loading condition, etc. without changing the shape and size of the ship, .

Further, according to the present invention, the bulb of the ship can maximize the reduction of the resistance according to the height of the corrugation and the like, by allowing the spherical protrusion to protrude at a predetermined height at the front upper end of the main body, have.

Further, according to the present invention, the spherical athlete of the vessel includes a grid portion inside the main body portion, and the main body portion is made of a stretchable material so that the outer surface of the main body portion can be variously changed by the expansion or contraction of the grid portion, It can be easily controlled.

Further, according to the present invention, the spherical athlete of the vessel is provided with a partial protruding portion in the form of a bundle of rods, and the height of the protruding portions of the rods can be individually controlled so that the overall appearance can be varied in various ways, The pillar can minimize the gap that can occur when moving the rod.

In addition, the spherical forehead of the ship according to the present invention allows the outer surface of the main body to be divided into a plurality of block portions, and each divided block portion moves outward so that the overall shape can be enlarged. At this time, the gap between the block portion and the block portion It is possible to change the shape and to realize the sealing smoothly by filling it with the sealing part moving by the sliding method or the like.

Further, according to the present invention, at least one bag having a variable volume as the fluid is injected is provided on the outer surface of the main body part so that the amount of fluid supplied to the bag part or the amount of fluid discharged from the bag part The amount can be adjusted to effectively cancel the wave resistance applied to the ship.

In addition, the spherical athlete of the present invention has a plate portion deformable into a curved surface and a mat portion having a bag portion having one surface attached to the plate portion. When the mat portion is attached to the main body portion while being warped, the other surface of the bag portion has a certain gap So that the state in which the bag portion is attached to the plate portion can be maintained, thereby making it possible to ensure the convenience and efficiency of production.

1 and 2 are side views of a bow of a ship according to a first embodiment of the present invention.
3 and 4 are side sectional views of a spherical athlete of a ship according to a first embodiment of the present invention.
5 is a view showing a flow of a flow in a spherical athlete of a ship according to a first embodiment of the present invention.
6 and 7 are views showing a door part in a spherical athlete of a ship according to a first embodiment of the present invention.
8 to 11 are side sectional views of a spherical athlete of a ship according to a second embodiment of the present invention.
12 is a side cross-sectional view of a spherical athlete of a vessel according to a third embodiment of the present invention.
13 and 14 are side views of partial projections in a spherical athlete of a ship according to a third embodiment of the present invention.
15 is a plan view of a partial projecting portion in a spherical athlete of a ship according to a third embodiment of the present invention.
16 and 17 are front sectional views of a spherical athlete of a ship according to a fourth embodiment of the present invention.
18 is a view showing a contact portion between a spherical aisle of a ship and a block portion according to a fourth embodiment of the present invention.
19 and 20 are side cross-sectional views of a spherical athlete of a ship according to a fifth embodiment of the present invention.
21 and 22 are conceptual views of a fluid control unit in a spherical athlete of a vessel according to a fifth embodiment of the present invention.
23 and 24 are side views of a mat portion in a spherical athlete of a vessel according to a sixth embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The objects, particular advantages and novel features of the present invention will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which: FIG. It should be noted that, in the present specification, the reference numerals are added to the constituent elements of the drawings, and the same constituent elements are assigned the same number as much as possible even if they are displayed on different drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

3 and 4 are side cross-sectional views of a spherical athlete of a ship according to a first embodiment of the present invention, and Fig. 5 is a side elevational view of a bow of a ship according to a first embodiment of the present invention. Fig. 6 and 7 are views showing a door part in a spherical athlete of a vessel according to a first embodiment of the present invention. Fig. 6 is a view showing a flow of a flow in a spherical athlete of a vessel according to the first embodiment of the present invention.

1 to 7, a spherical bow 1 of a vessel according to a first embodiment of the present invention is a spherical bow 1 provided at a lower side from the front of a ship and includes a main body 110, 120, and a protrusion control unit 130.

The main body 110 has a curved surface shape protruding forward. The main body 110 is fixed to the ship's hull and forms a continuous outer surface with the hull. The main body 110 may have an elliptical shape with a regular cross section. At this time, the main body 110 may be vertically symmetrical with respect to the center point in the vertical direction in the vertical section, or may have a larger shape at the upper portion.

The main body 110 may have a cross-sectional shape that increases from the front end to the rear end, and may have a shape in which a section from a point spaced from the front end of the main body 110 by a predetermined distance extends constantly.

The main body 110 reduces wave resistance by forming an offset wave when the ship is advanced, and the shape of the main body 110 can be variously determined according to the shape of the ship. However, the body portion 110 is made of a metal material by welding or the like, so that it can not be changed in shape or size after it is manufactured. In this case, it may be difficult to realize the minimization of the wave resistance due to changes in the ship's line speed or sea condition.

However, according to the present embodiment, since the shape of the spherical prime mover 1 is changed by providing the protruding portion 120 and the like in addition to the main body 110, it is possible to prepare for both low speed and high speed, Can be maximized.

The main body 110 may include a door portion 111 for entering and exiting the projecting portion 120 to be described later. The door part 111 is provided on the outer surface of the main body part 110 and can form a circular hole of a predetermined size to protrude the protruding part 120 therethrough.

The main body 110 may further include a diaphragm blade 112 which rotates and overlaps with the door 111 to open and close the door 111. The degree of overlap of the diaphragm blades 112 The size of the protrusion 120 protruding through the door portion 111 can be varied accordingly.

Of course, the present invention can also open and close the door portion 111 with a configuration other than the diaphragm blade 112, and can realize the opening and closing of the door portion 111 using a sliding mechanism or the like. That is, the present invention does not limit the configuration by simply opening / closing the door portion 111 with the diaphragm blades 112.

The protrusion 120 is protruded from one point of the main body 110 and at least a portion of the main body 110 exposed to the outside has a curved shape. The protrusion 120 is configured to protrude from the outside of the main body 110 and may be located inside the main body 110 if necessary.

The protrusion 120 may protrude out of the main body 110 through the door portion 111 of the main body 110. The protrusion 120 may protrude outward from the protrusion 120 and the outer surface of the main body 110 The protrusion 120 may be in the form of a curved surface continuous with the outer surface of the body portion 110, in order to minimize the occurrence of resistance due to the bent portion that can be formed. For example, the protrusion 120 may be spherical.

The protrusion 120 may protrude from the upper front of the main body 110. For this purpose, the door portion 111 may also be provided in the upper portion of the main body 110. This is to change the ball player 1 into Gooseneck.

1 shows the outer surface of the spherical prism 1 with the protruding portion 120 not protruding and the outer surface of the spherical prism 1 with the protruding portion 120 protruding in the case of FIG. The projecting portion 120 may protrude to the outside of the main body 110 through the door portion 111. In this case, as the projecting portion 120 protrudes, the upper front of the spherical prongs 1 is convex upward do.

As shown in FIG. 5, when a forward player (1) in the form of a gooseneck is compared to a forward player (1) in the case of a gooseneck, the forward player (1) 1), it is possible to enlarge the falling width. Accordingly, the present embodiment can reduce the pressure resistance by about 8% as compared to the conventional spherical athlete 1 by making the spherical athlete 1 into a gooseneck shape.

However, the spherical athlete (1) in the form of a gooseneck is effective in reducing the resistance when the ship is relatively high, but may cause an increase in the resistance when the ship is operating at low speed. Therefore, if the ship is operated at a low speed, the present embodiment can minimize the height of the upper front of the spherical prong 1 by minimizing the protrusion of the protruding portion 120.

The protrusion 120 protrudes outward from the main body 110 through the door portion 111. The protrusion 120 may be sealed by a sealing member (not shown) between the protrusion 120 and the door portion 111 . At this time, a sealing member may be provided at the edge of the diaphragm blade 112. This is because the diaphragm blade 112 abuts the protrusion 120.

However, if the protrusion 120 has a spherical shape, the outer surface of the main body 110 and the outer surface of the protrusion 120 may form a bending point. At this time, the present embodiment may be provided with the cover portion 140 to further reduce the resistance.

The cover part 140 is provided on the main body part 110 to cover the protruding part 120 and the door part 111. That is, the cover portion 140 may cover one point of the body portion 110 that allows the protrusion 120 to protrude, and may be made of a stretchable material.

3, when the protrusion 120 is not protruded, the cover 140 is kept in close contact with the outer surface of the main body 110, and the protrusion 120, as shown in FIG. 4, The protruding portion 120 can maintain a shape extending away from the outer surface of the main body 110 with respect to the point where the door portion 111 is installed.

In this case, the effect of enabling the number of the door portions 111 to be made by the cover portion 140 can be obtained in this embodiment, and the entire outer surface of the spherical athlete 1 is smoothly maintained through the cover portion 140, Can be prevented.

The protrusion control unit 130 is provided inside the main body 110 and controls the protrusion 120 to protrude to the outside of the main body 110. The protrusion control unit 130 can push or pull the protrusion 120 using the protrusion piston 131 and the protrusion piston 131 can be controlled to be connected to the protrusion 120 at one end.

The protrusion control unit 130 allows the protrusion piston 131 to move by a variety of driving means including a pump and a motor and the protrusion 120 moves in a predetermined direction through a protrusion piston 131 which translates in a predetermined direction So that the translational motion can be performed.

At this time, the direction of translational movement of the protrusion 120 may be a direction toward the upper front of the main body 110 at the center of the main body 110. The protrusion 120 may protrude outward of the main body 110 by being pushed by the protruding piston 131 or may be pulled inward of the main body 110 by being pulled by the protruding piston 131. [ Of course, this embodiment can realize protrusion and pull-in of the protrusion 120 by using various structures in addition to the protrusion piston 131.

As described above, according to the present embodiment, the spherical bow 1 can be shaped like a goose neck by using the protruding portion 120, so that when the ship must navigate at high speed, the reduction in the wave resistance can be effectively realized.

8 to 11 are side sectional views of a spherical athlete of a ship according to a second embodiment of the present invention.

8 to 11, a spherical athlete 2 of a vessel according to a second embodiment of the present invention is a spherical athlete 2 provided below the front of a ship, and includes a main body 210, (220), and a grid controller (230).

The main body 210 may have a curved surface shape which is the same as or similar to that of the first embodiment described above. However, the main body 210 of the present embodiment may have a shape that can be stretched or shrunk, And may be formed of a material.

In the first embodiment, the outer surface of the bulb bow 2 is formed by the body 110 and the protrusion 120 (or the cover 140), and the portion that is variable in the outer surface is the protrusion 120 or the cover 140, the outer surface of the main body 210 may form an outer surface of the spherical prism 2, and the outer surface of the main body 210 may be entirely varied.

That is, the main body 210 may be pulled inward by the grid unit 220, which will be described later, or may be variously changed in shape as it is pushed outward. The shape change may occur entirely on the outer surface of the main body 210, Or in part.

The grid portion 220 is provided inside the main body 210 and connected to a plurality of points on the inner surface of the main body 210. The grid portion 220 is connected to an inner surface of the outer surface of the main body 210 corresponding to an outer surface requiring a change and may be fixed to the inner surface of the main body 210 in a plurality of dot shapes.

The grid portion 220 may be composed of a piston 221. At this time, a plurality of pistons 221 are formed and one end is connected to the inner surface of the main body 210. The pistons 221 may be provided to extend inward or outwardly, and a plurality of the pistons 221 may be arranged in the vertical direction, and a plurality of the pistons 221 may be arranged in the horizontal direction. It goes without saying that the piston 221 of this embodiment can be arranged radially in addition to the vertical and horizontal directions.

The piston 221 of the present embodiment can be pushed outward by the inner surface of the main body 210 as it is extended by the grid adjusting portion 230 to be described later. At this time, since the main body 210 is made of a stretchable material, a part of the main body 210 pushed by the piston 221 can be expanded outward.

8 and 9, it can be seen that the front upper part of the spherical prong 2 is pushed outward by the piston 221 in FIG. As described above, according to the present embodiment, the shape of the main body 210 can be partially or wholly controlled variously by extending or contracting the piston 221.

Or the grid portion 220 may be composed of an elastic wire 222. At this time, the elastic wire 222 may be connected to the inner surface of the main body 210 at one end, and may be provided radially inside the main body 210.

The elastic wire 222 may have an elastic force to be expanded. 10, the main body 210 may have a maximum size, and when an external force contracting the elastic wire 222 is applied to the elastic wire 222 as shown in FIG. 11, The size of the main body 210 can be reduced.

When the elastic wire 222 is installed inside the body 210 so as to have an elastic force to shrink the elastic wire 222, the elastic wire 222 is made of a flexible material, It is difficult to implement a force that pushes the inner surface of the outer casing in the outward direction.

The elastic wire 222 is pulled by the grid adjusting unit 230 so that the inner surface of the main body 210 is pulled toward the inner center of the main body 210, So that the outer surface can be entirely or partially drawn inward of the body 210.

That is, the grid portion 220 can change the shape of the main body portion 210 in such a manner that the inner surface of the main body portion 210 is pushed outwardly through the piston 221, The shape of the main body 210 can be changed by pulling the inner surface of the main body 210 inward.

Of course, in the present embodiment, the grid portion 220 may selectively include the piston 221 and the elastic wire 222, or may include the piston 221 and the elastic wire 222 together. Also, the piston 221 may be disposed radially as described above, and the elastic wire 222 may also be disposed horizontally or vertically.

The grid adjustment unit 230 contracts or expands the grid unit 220 to change the shape of the main unit 210. When the grid unit 220 is the piston 221 as described above, the grid adjustment unit 230 may extend the piston 221 such that a part of the main body 210, to which the one end of the piston 221 is connected, . When the grid 220 is the elastic wire 222 as described above, the grid adjuster 230 pulls the elastic wire 222 to move a portion of the main body 210, to which one end of the elastic wire 222 is connected, Direction.

To this end, the grid control unit 230 includes a grid control unit 230 connected to all the pistons 221 and connected to the horizontally disposed pistons 221, and a grid control unit 230 connected to the vertically disposed pistons 221 The grid control unit 230 may be separately provided.

Or the grid adjusting unit 230 may be provided inside the main body 210 so that the elastic wire 222 may be provided radially with respect to the grid adjusting unit 230. The other end of the elastic wire 222 may be wound The outer surface of the main body 210 can be variously changed by pulling or pulling out the elastic wire 222 in a manner to be taken.

As described above, in the present embodiment, the inner surface of the main body 210 is pulled inward or outwardly by using the grid portion 220 which can be shrunk or expanded in whole or in part, The outer surface of the portion 210 may be varied in various shapes as necessary to minimize the wave resistance.

FIG. 12 is a side sectional view of a spherical athlete of a vessel according to a third embodiment of the present invention, FIGS. 13 and 14 are side views of a partial projected portion in a spherical athlete of a vessel according to a third embodiment of the present invention, Fig. 7 is a plan view of a partial projecting portion in a projecting bow of a ship according to a third embodiment of the present invention.

12 to 15, the spherical athlete 3 of the vessel according to the third embodiment of the present invention is a spherical athlete 3 provided below the front of the vessel, A protrusion 320, and a protrusion control unit 330.

The main body 310 has a curved surface shape that protrudes forward or backward in the same manner as the first and second embodiments, but the outer surface of the main body 310 may be surrounded by the partial protrusion 320 . Of course, the partial protrusion 320 may be provided only on a part of the outer surface of the main body 310.

The body portion 310 may be made of a material which can not be changed in shape, and may have a fixed shape, as in the first embodiment. However, in the present embodiment, the entire outer surface of the spherical prongs 3 can be varied by using the partial protrusion 320 provided outside the main body 310.

The partial protrusion 320 is provided on the outer side of the main body 310 and includes a plurality of rods 321. The plurality of rods 321 may be provided adjacent to each other and may be formed on the outer circumferential surface of the spherical prism 3 through the adjacent rods 321. In this case, An outer surface can be formed.

The rods 321 are independently movable in the longitudinal direction. The rod 321 may be in the form of a hexagonal column to minimize the gap therebetween, and may be arranged to be in close contact with the width direction, not the longitudinal direction.

At this time, since the rod 321 has a sufficiently small size, even if the plurality of rods 321 form a curved surface, interference can be prevented in the longitudinal movement of the rods 321.

The rod 321 may have one end lying on a plane or a curved surface, and the other end forming a plane or a curved surface. If the rods 321 all have the same length, the plurality of rods 321 one end on the plane may form a plane with the other end, and conversely if the rods 321 have different lengths from each other, A plurality of rods 321 at one end can form a curved surface or the like at the other end.

13 and 14, the rod 321 may have one end lying on a plane, and the other end of the rod 321 may form a plane. At this time, as the rod 321 located at the center portion is pushed up in the longitudinal direction by the protrusion control portion 330 to be described later, the surface formed by the other end of the rod 321 can be changed from a flat surface to a curved surface.

That is, the plurality of rods 321, which are placed on one plane on one plane, can be curved by the other end as they move non-uniformly in the longitudinal direction. Or in the case where the position of the rod 321 further changes in Fig. 14, that is, as the plurality of rods 321 on one specific curved surface move unevenly in the longitudinal direction, the curved surface or the flat surface Can be formed.

In this way, the partial projecting portion 320 is provided with a plurality of bars 321, and the bars 321 can move in the longitudinal direction different from each other, so that the spherical prongs 3 formed by the other end of the rod 321 Can be varied in various ways.

At this time, the rods 321 are disposed adjacent to each other with a rod (not shown) or other sliding members (not shown) between the rods 321 to prevent friction between the rods 321, .

However, since the inflow of the fluid may occur between the rods 321 if the rods 321 are disposed at intervals from each other, the present embodiment can utilize the cover portion 140 of the first embodiment so as to cover the other end of the rods 321 have.

The protrusion control unit 330 changes the shape of the outer surface of the spherical prong 3 by moving the rod 321 of the partial protruding portion 320. The protrusion control unit 330 may independently control the rod 321 using a plurality of pistons 221 connected to each rod 321 or may independently control the plurality of rods 321, You can also control them by grouping them together.

The protrusion control unit 330 may use various structures other than the piston 221 to control the rod 321. For example, a pocket or the like which is in close contact with one end of the rod 321 and whose volume is varied by the fluid may be utilized .

In other words, in the present embodiment, any configuration can be used as long as the protrusion control section 330 can drive the rod 321 to push up and down. In the present embodiment, the specific structure and the operation method of the protrusion control unit 330 may not be limited to the piston 221 or the like.

As described above, according to the present embodiment, the outer surface of the spherical prongs 3 is formed by using the independently movable rod 321, and the shape of the outer surface can be changed by moving the rod 321 in the longitudinal direction, Can be maximized.

16 and 17 are front sectional views of a spherical athlete of a ship according to a fourth embodiment of the present invention and Fig. 18 is a view showing a contact portion between a spherical athlete of a ship and a block portion according to a fourth embodiment of the present invention to be.

16 to 18, the spherical forehead 4 of the vessel according to the fourth embodiment of the present invention is a spherical forehead 4 provided below the front of the ship, A block moving unit 430, and a sealing unit 440.

The body portion 410 has a curved surface shape that protrudes forward or forward in the same manner as the other embodiments. However, the body 410 of the present embodiment may have a fixed size, and the outer surface of the bulb 4 may be varied by a block 420, which will be described later.

Or the body portion 410 is formed by the block portion 420 so that the body portion 410 can be expanded or contracted by itself. In other words, in the present embodiment, the body 410 may have a separate outer surface and the block 420 may be provided on the outer surface of the body 410. Alternatively, The outer surface can be formed by the outer surface 420.

The block portion 420 is provided on the outer side of the body portion 410 so as to be movable in an inward direction or an outward direction of the body portion 410. The block portion 420 may have a curved surface shape due to the shape of the spherical prism 4 and may be formed by dividing the outer surface of the spherical prism 4 to a predetermined size. Accordingly, the block portion 420 may have a different shape.

The block portions 420 may be in close contact with each other to form a minimum size of the outer surface of the spherical prongs 4 and may be spaced apart from each other as the outer surface of the main body portion 410 moves.

At this time, at least one side surface may be provided with a cushioning material 421 for mitigating an impact upon collision with the other block unit 420 in the process of closely contacting the block unit 420. The cushioning material 421 may have a shape corresponding to that of the cushioning material 421 provided in the other block 420 as shown in FIG. . Specifically, the cushioning material 421 provided in one of the block units 420 has a concave shape, and the cushioning material 421 provided in the other block unit 420 has a convex shape.

When the cushioning material 421 provided on one of the block units 420 is engaged with the cushioning material 421 provided on the other block unit 420 when the block unit 420 is in close contact with each other, 420). At the same time, the gap between the block portions 420 can be sealed with the cushioning material 421.

The block moving unit 430 moves the block unit 420 to vary the shape of the outer surface. The block moving part 430 moves the block part 420 outwardly while moving the block part 420 outwardly of the body part 410 so that the whole of the spherical prism 4 formed by the block part 420 Can be enlarged.

The block moving part 430 moves the block part 420 inward of the body part 410 so that the block part 420 is brought into close contact with each other so that the entire conical shape formed by the block part 420 So that the outer surface of the body 4 can be reduced.

The block moving part 430 can move the block part 420 away from the center of the body part 410 in a radial direction. However, when the outer surface of the bulb 4 is expanded by the block moving unit 430, a gap may be formed between the block units 420 as the block units 420 are moved away from each other. At this time, the gap may be sealed by a sealing part 440 to be described later.

The sealing portion 440 covers the gap between the block portions 420 formed when the block portion 420 moves in the outward direction of the body portion 410. As shown in FIG. 16, when the block portions 420 are in close contact with each other, a cover by the sealing portion 440 may be unnecessary. 17, when the outer surface of the spherical forehead 4 is expanded while the block portions 420 are widened to each other, a gap is formed between the block portions 420, .

At this time, the sealing part 440 may be provided in any one of the block parts 420 so as to be drawn out in a direction adjacent to the other block part 420 in one of the block parts 420. For example, And may be drawn out from the block portion 420 to cover the gap between the block portions 420.

Or the sealing portion 440 may be pulled out of the block portion 420 by a hinge rotation method to cover the gap between the block portions 420. In this case, the size of the sealing portion 440 may be the same as that of the block portions 420 May be a size corresponding to when the gap between the electrodes becomes maximum.

Of course, in the present embodiment, the sealing part 440 may be provided in a telescopic form so as to protrude from the one side of the block part 420 by a predetermined length, and if the gap between the block parts 420 can be filled, Structure or form can be used.

As described above, according to the present embodiment, the outer surface of the spherical prongs 4 is expanded or contracted by using the block portion 420 which is close to or away from each other, and the gap between the block portions 420 is sealed to the sealing portion 440 The sealing force can be maintained by covering.

FIGS. 19 and 20 are side sectional views of a spherical athlete of a vessel according to a fifth embodiment of the present invention, and FIGS. 21 and 22 are conceptual views of a fluid control part in a spherical athlete of a vessel according to a fifth embodiment of the present invention.

19 to 22, a spherical athlete 5 of a vessel according to a fifth embodiment of the present invention is a spherical athlete 5 provided at a lower side from the front of a ship, and includes a body 510, Unit 520, and a fluid control unit 530.

The body portion 510 may have a curved surface shape protruding forward as in the other embodiments, and may be made of a metal or the like to maintain a fixed shape. At this time, the outer appearance of the spherical prongs 5 in this embodiment may be varied by the bag part 520 provided outside the main body part 510.

That is, the outer surface of the body portion 510 does not directly form the outer surface of the spherical prongs 5, and the outer surface of the bag portion 520, which will be described later, can form the outer surface of the spherical prongs 5. At least a part of the outer surface of the main body part 510 and the outer surface of the bag part 520 together with the outer surface of the spherical prong 5 may be formed only at a part of the outer side of the main body part 510, Can be formed.

The bag part 520 is provided outside the main body part 510, and the volume of the bag part 520 is varied by the inflow and outflow of the fluid. The bag part 520 may be configured to have a variable volume by a principle such as a balloon, that is, the bag part 520 may be made of a stretchable material. Therefore, if the fluid is discharged from the bag part 520, the volume of the bag part 520 can be naturally reduced.

The bag parts 520 may be disposed adjacent to each other to form the outer surface of the bulb 5. The bag part 520 may be arranged in a lattice shape along the outer surface of the main body part 510. Since the bag part 520 is adjacent to the bag part 520, the outer surface of the bag part 520 may form a surface with a minimum gap.

The bag part 520 can allow the fluid to independently flow into and out of the bag part 520 so that the volume of the bag part 520 can be varied independently for each bag part 520. However, the size of the bag 520 may be minimized when the fluid is discharged, and the volume of the fluid may be maximized when the fluid is supplied. . ≪ / RTI >

The bag part 520 may be formed at least part of the outside of the main body part 510 and the bag part 520 provided close to a part of the main body part 510 in which the bag part 520 is not formed, And the maximum size may be formed to be relatively small when compared with the other bag parts 520. This is to allow the outer surface of the main body 510 and the outer surface of the bag 520 to smoothly connect with each other.

The bag part 520 may have a hexahedral shape. At this time, one side of the bag part 520 can be closely attached to the outside of the body part 510, and the other side of the bag part 520 can form the outer surface of the bulb 5. One side and the other side of the bag part 520 may be distant from each other or close to each other depending on the amount of fluid flowing into the bag part 520.

The bag 520 may be arranged such that the corners of one side thereof are adjacent to each other outside the main body 510 and the corners of the other sides are spaced apart from each other. 19 and 20 as the bag body 520 has a hexahedron, the outer shape of the bag body 520 in the front portion of the body portion 510 The other surfaces can be disposed with a gap therebetween. This may be greater when the bag 520 is inflated.

However, the present embodiment may include the cover 140 described in the first embodiment in order to suppress the generation of fluid resistance due to the gap of the bag part 520. That is, it is possible to prevent a gap or the like from being formed on the outer surface of the spherical prongs 5 by using the cover portion 140 that covers the other surface of the bag portion 520.

The fluid control part 530 controls the flow of the fluid of the bag part 520 to vary the shape of the outer surface. The fluid control unit 530 may include a hydraulic line 531 and a hydraulic pump 532. The hydraulic line 531 may be connected to each of the bag parts 520 as shown in Fig. 21, or may be connected to at least two bag parts 520 communicated with each other as shown in Fig.

The hydraulic pump 532 supplies fluid to the bag part 520 through the hydraulic line 531 or discharges the fluid from the bag part 520. [ At this time, the fluid may be gas or liquid, and may be air that is safe and easy to secure.

However, when the bag 520 for injecting air is used, buoyancy may be generated in the bulb 5, so that a stern trim may occur in the vessel. Accordingly, the fluid control unit 530 can use the seawater so as to keep the ball 5 in a balanced state, or use a fluid having a density that prevents the occurrence of the trimming.

The fluid control unit 530 can drive the fluid flow of the bag part 520 connected to the hydraulic line 531 using one hydraulic pump 532 or use a plurality of hydraulic pumps 532. However, if the number of the hydraulic pumps 532 is increased, the manufacturing cost is increased while the independent control of the bag part 520 is facilitated. If the number of the hydraulic pumps 532 is decreased, Independent control can be difficult. Therefore, in this embodiment, in order to allow the independent control while lowering the number of the hydraulic pumps 532, a grouping of the bag parts 520 is performed and a valve (not shown) is attached to the hydraulic line 531 connected to the grouped bag part 520. [ The flow of the fluid in the bag portion 520 can be controlled by using the valve control.

As described above, according to the present embodiment, the bag portion 520, which can be shrunk or expanded by the fluid, is provided on the outer surface of the body portion 510 so that the outer surface of the bulb 5 can be changed by the bag portion 520 So that the optimum spherical athlete 5 can be secured according to the operating conditions without replacing the spherical athlete 5.

23 and 24 are side views of a mat portion in a spherical athlete of a vessel according to a sixth embodiment of the present invention.

23 and 24, the spherical prong 6 of the vessel according to the sixth embodiment of the present invention is a spherical prong 6 provided on the lower side in front of the ship, and includes a main body 510, (610), and a fluid control unit (530). The present embodiment differs from the fifth embodiment in that it includes a mat unit 610, and the mat unit 610 will be described below. The description of the remaining configuration is omitted in the description of the fifth embodiment.

The mat portion 610 is provided on the outer side of the main body portion 510 to form an outer surface. The mat portion 610 includes a plate portion 611 and a bag portion 612. The bag portion 612 is the same as or similar to the bag portion 520 described in the fifth embodiment.

The plate portion 611 is provided so as to be warped. The plate portion 611 may be made of a stretchable material, and may be formed into a flat shape and then formed into a curved shape. Here, the curved surface means a curved surface corresponding to the outer surface of the main body 510.

One side of the bag 612 may be fixed to the plate 611, and the volume of the bag 612 may be varied by the inflow and outflow of the fluid. The details of the volume expansion and contraction of the bag 612 are the same as those described in the fifth embodiment.

The bag parts 612 may be disposed adjacent to each other in the plate part 611 and one surface may be fixed to the plate part 611 and the other surface may form the outer surface of the spherical prongs 6. The plate portion 611 may have a planar shape or may have a curved shape. However, as mentioned above, the plate portion 611 may be formed in a planar shape, So that the edges of one surface are adjacent to each other on the plate portion 611, and the edges of the other surface are placed in close contact with each other without gaps.

When the plate portion 611 has a curved surface shape, the bag portion 612 may be curved so as to correspond to the outer surface of the main body portion 510. When the plate portion 611 has a curved surface shape, In the state in which they are adjacent to each other on the plate portion 611, the corners of the other surfaces are spaced apart from each other. That is, the other surface can form a slight gap as shown in Fig.

The present embodiment is characterized in that the mat portion 610 shown in Fig. 23 is manufactured by disposing the bag portion 612 adjacent to the planar plate portion 611 and then the plate portion 611 is formed in the manufactured mat portion 610, The bent mat portion 610 shown in FIG. 24 can be coupled to the outside of the main body 510 by bending the main body portion 510 so as to correspond to the outer surface of the main body portion 510.

In this case, the other surfaces of the bag part 612 which are not coupled to the plate part 611 may be distant from each other. In this case, in the present embodiment, the same or similar application of the above- Can be prevented.

That is, the mat portion 610 has a plate portion 611 on one side of the bag portion 612 and a cover portion 140 on the other side of the bag portion 612, And the cover part 140 formed on the other surface of the bag part 612 is made of a stretchable material so that the plate part 611 is deformed to correspond to the outer surface of the body part 510 The cover portion 140 is sufficiently stretched to prevent the problem of the installation of the mat portion 610 from occurring.

As described above, according to the present embodiment, the bag portion 612 is provided in the main body portion 510 using the mat portion 610, thereby improving the convenience and efficiency of the fabrication, and the plate portion 611 of the mat portion 610 Since the bag body 610 is detachably attached to the main body 510, the bag body 612 can be easily replaced.

The present invention may further include another embodiment combining at least two embodiments selected from the group including the first to sixth embodiments in addition to the first to sixth embodiments. That is, the present invention may include an embodiment in which the bag portion 520 is disposed on an outer portion of the main body portion 510 and the partial protrusion portion 320 is provided on the remaining portion.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the same is by way of illustration and example only and is not to be construed as limiting the present invention. It is obvious that the modification and the modification are possible.

It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

1, 2, 3, 4, 5, 6: spherical athlete of the vessel 110:
111: Door part 112: Aperture wing
120: protrusion 130:
131: projecting piston 140: cover part
210: main body 220: grid portion
221: piston 222: elastic wire
230: grid adjustment unit 310:
320: partial protrusion 321: rod
330: protrusion control unit 410:
420: block unit 421: cushioning material
430: block moving part 440: sealing part
510: main body part 520: bag part
530: Fluid control part 531: Hydraulic line
532: Hydraulic pump 610: Mat portion
611: Plate 612: Pouch

Claims (7)

In a spherical athlete provided on the lower side from the front of the ship,
A body portion having a curved surface shape protruding forward; And
And a mat portion provided on an outer side of the body portion to form an outer surface,
The mat portion
A plate portion provided to be able to bend; And
And a bag portion having one side fixed to the plate portion, a volume varying by the inflow and outflow of the fluid, and being disposed adjacent to each other to form the outer surface,
And is coupled to the main body portion by using the plate portion bent to correspond to the outside of the main body portion. The apparatus according to claim 1,
Characterized in that it is made of a stretchable material. The apparatus according to claim 1,
Wherein said main body portion is detachably coupled to said main body portion. [2] The bag according to claim 1,
Wherein one surface is fixed to the plate portion and the other surface forms the outer surface. 5. The apparatus according to claim 4,
Wherein when the plate portion has a planar shape, the corners of the one surface are disposed adjacent to each other and the corners of the other surface are disposed adjacent to each other. 5. The apparatus according to claim 4,
Wherein when the plate portion has a curved shape, the corners of the one surface are disposed adjacent to each other and the corners of the other surface are spaced apart from each other. The method according to claim 1,
And a fluid control unit controlling the flow of the fluid of the bag part to vary the shape of the outer surface of the vessel.

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