KR101762593B1 - Vessel including movable bulbous bow - Google Patents

Abstract

A ship having a movable concrete player is disclosed. A ship according to an embodiment of the present invention includes: a rail extending vertically to a forward portion of a hull; And a movable ball moving in the vertical direction along the rail.

Description

Vessel including movable bulbous bow < RTI ID = 0.0 >

The present invention relates to a ship having a movable concrete bow.

In general, the ship's linear design is done with the horsepower and draft of the main engine set. The shape of the bulbous bow mounted on the bow of the hull is also designed according to the speed and draft of the ship.

The draft is the depth at which the ship is immersed in water, and the waterline is marked on the side of the ship with a scale. Therefore, the depth of the ship can be easily grasped by reading the waterline.

The contemplated athlete plays a role in reducing the wave resistance during the navigation process of the ship. In other words, a ship navigating the ocean is subject to wave resistance because it is running with waves. Since this wave resistance causes the loss of operating energy of the ship, the bow of most ships is equipped with a spherical athlete in order to reduce the wave resistance.

1 is a view showing a general ship equipped with a spherical athlete.

The spherical athlete 3 projects an ellipsoid of an appropriate size and shape under the forward portion 2 of the hull 1 depending on the speed of the ship or the use of the ship. ), The bow wave generated by the wave resistance is interfered with the wave generated by the spherical bow (3), so that the bow wave is eliminated.

The shape of the spherical prongs (3) is determined in the design process according to the draft (4) and the speed of the ship. However, with the trend of the rapidly changing maritime industry, ships are frequently operated at the speed of change and at the changing draft, which is deviating from the design speed or design draft adopted in the ship design process. However, it is not easy to change the shape of the bow once it has been determined during the design and drying stages.

2 is a view showing a bow shape of an ice class ship.

Referring to FIG. 2, it is not possible to install a spherical athlete for ice braking in an ice-class ship, which causes a deterioration in the operational performance (line speed) at sea, not in the ice section.

Korean Patent Laid-Open Publication No. 10-2014-0141991 (Dec. 11, 2014)

The present invention is to provide a vessel having a movable type player capable of improving the ship navigation performance by changing the position of the pilot in accordance with the speed of the ship and the operating area by installing the pilot in a movable form.

An object of the present invention is to provide a marine vessel having a movable type bow which improves the marine performance of the ice class vessel in the sea other than the ice section and improves the braking performance by increasing the weight of the vessel during the ice section navigation.

The present invention is also intended to provide a vessel having a movable concrete ball which can be used in a variable shape in a necessary bulge shape by installing a rail in a drying step without repairing a bulb installed in advance.

Other objects of the present invention will become readily apparent from the following description.

According to an aspect of the present invention, there is provided a hull comprising: a rail extending vertically to a forward portion of a hull; And a movable spherical athlete moving up and down along the rail.

The movable spherical aisle includes a bulb body having an opening formed in a hull contact surface and having a fixing portion in an inner space; And a support arm having one end hinged to the fixing portion and the other end coupled to the pinion gear, the support arm being adjustable in length.

The rails may include a pair of rack bars formed with racks that mesh with the pinion gears.

The hull contact surface may have a shape corresponding to the lower shape of the bow.

A rubber damper may be attached to the periphery of the hull contact surface.

Wherein the vessel is an ice class vessel, and when the ice section is operated, the moving type spherical athlete is mounted in a mounting space provided on the upper portion of the forefront portion, and when navigating the marine vessel other than the ice section, It can be moved to the lower part of the bow.

Other aspects, features, and advantages will become apparent from the following drawings, claims, and detailed description of the invention.

According to the embodiment of the present invention, it is possible to improve the ship navigation performance by changing the position of the pilot in accordance with the speed of the ship and the operating area by installing the pilot in a mobile manner.

In addition, there is an effect that the performance of the ice class vessel in the sea other than the ice section is improved, and the braking performance is improved due to an increase in the weight of the ice section during the ice section flight.

In addition, there is an effect that a valve can be used in a variable shape in a required bulb shape by installing a rail at the drying step without repairing the bulb installed in advance.

1 is a view showing a general ship equipped with a spherical athlete,
2 is a view showing the shape of a bow of an ice class ship,
3 is a view showing a state in which a mobile type pilot is installed on a bow of a ship according to an embodiment of the present invention,
FIG. 4 is a view showing a case where a movable spherical athlete is located at an upper portion of a bow and a case where it is located at a lower portion of a bow;
FIG. 5 is a view for explaining the principle that the movable concrete player is moved up and down,
Figure 6 shows another embodiment of a rail,
FIGS. 7 to 10 are views showing a state in which a movable ball player moves from an upper portion to a lower portion of a bow. FIG.

While the invention is susceptible to various modifications and alternative forms, specific embodiments thereof are shown by way of example in the drawings and will herein be described in detail. It is to be understood, however, that the invention is not to be limited to the specific embodiments, but includes all modifications, equivalents, and alternatives falling within the spirit and scope of the invention.

It is to be understood that when an element is referred to as being "connected" or "connected" to another element, it may be directly connected or connected to the other element, . On the other hand, when an element is referred to as being "directly connected" or "directly connected" to another element, it should be understood that there are no other elements in between.

The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The singular expressions include plural expressions unless the context clearly dictates otherwise. In this specification, the terms "comprises" or "having" and the like refer to the presence of stated features, integers, steps, operations, elements, components, or combinations thereof, But do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

The terms first, second, etc. may be used to describe various components, but the components should not be limited by the terms. The terms are used only for the purpose of distinguishing one component from another.

Also, the terms " part, "" module," " unit, "and the like, which are described in the specification, mean a unit for processing at least one function or operation and may be implemented by hardware or software or a combination of hardware and software .

It is to be understood that the components of the embodiments described with reference to the drawings are not limited to the embodiments and may be embodied in other embodiments without departing from the spirit of the invention. It is to be understood that although the description is omitted, multiple embodiments may be implemented again in one integrated embodiment.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the like elements throughout. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description, well-known functions or constructions are not described in detail since they would obscure the invention in unnecessary detail.

FIG. 3 is a view showing a state in which a mobile type pilot is installed on a bow of a ship according to an embodiment of the present invention, FIG. 5 is a view for explaining the principle in which the movable concrete player is moved up and down, and FIG. 6 is a view showing another embodiment of the rail. Here, FIGS. 5 and 6 show a forward view of the ship from the hull.

3 to 6 show a ship 1, a forward portion 2, a mounting space 5, a movable spherical athlete 10, a bulb body 20, a support arm 30, a rail 40, a rack bar 42a 42b, hereinafter also referred to as "42"), pinion gears 32, 32a-32d, and a fixing portion 22 are shown.

The portable type contour according to an embodiment of the present invention is installed on a bow of a ship and is movable up and down along a rail provided on the bow to change its position to the upper portion of the bow or the lower portion of the bow according to the situation Thereby improving the navigation performance.

The movable spherical athlete 10 according to the present embodiment includes a bulb body 20 and a support arm 30.

The bulb body 20 may have a shape such that the interior is in an empty cap shape and can minimize the wave resistance when it is secured to the lower portion of the bow portion 2 when the vessel 1 is operated. For example, the bulb body 20 may have a shape in which an ellipsoid of a predetermined size and shape protrudes.

In the inner space of the bulb body (20), a fixing portion (22) for hinging one end of the support arm (30) is provided.

One end of the support arm 30 is hinged to the fixed portion 22 of the bulb body 20 and the other end thereof is coupled with a pinion gear 32. [

The support arm 30 has a structure capable of adjusting the length. For example, the support arm 30 may have a telescopic structure. Or the support arm 30 may be constituted by a hydraulic cylinder and may have a structure in which the piston moves forward and backward by the hydraulic pressure in the cylinder body.

A driving portion (not shown) is provided in the fixing portion 22 so that the length of the support arm 30 can be adjusted or the pinion gear 32 coupled to the other end of the support arm 30 can be rotated.

An opening is formed in the rear surface (hull contact surface) of the bulb body 20 so that the support arm 30 can pass through it. A rubber damper is provided around the opening so that when the bulb body 20 is secured to the bow 2, the inner space of the bulb body 20 is watertight so as to be brought into close contact with the hull, Absorbs shock. The remaining water (sea water) remaining in the internal space of the bulb body 20 after being secured may be discharged through a discharge hole (not shown) to remove residual water.

A rail 40 is vertically provided on the surface of the bow portion 2 so that the movable spherical athlete 10 can be moved up and down along the rail 40.

5, the rail 40 includes a pair of rack bars 42a and 42b having racks formed in a direction opposite to each other, and the pinion gears 42a and 42b coupled to the other end of the support arm 30 32a-32d. That is, when the pinion gears 32a to 32d of the support arm 30 are engaged with the racks of the rails 40 and the pinion gear 32a is rotated, the pinion gears 32a to 32d are moved upward or downward along the rails 40 .

In this embodiment, only one of the pinion gears 32a to 32d is rotated by the driving unit and the remaining pinion gears 32b to 32d are not provided with a separate driving force and can have a structure rotatable by an external force have. In this case, when one of the pinion gears 32 rotates, the other pinion gears 32b-32d smoothly rotate as the movable spherical athlete 10 moves. This makes it possible to eliminate the difficulty of motor control in which the rotational speeds of all the pinion gears must be matched when all of the pinion gears are rotated by the driving portion.

Although a total of four support arms 30 are provided on the left and right sides of the support arm 30, only one support arm 30 is provided in the left and right sides of the support arm 30, and one or more support arms 30 may be provided on the left and right sides.

The rail 40 may be covered with a cover (not shown) so that it is opened only when the movable spherical athlete 10 is moving, and the rail 40 can be protected by the cover.

A rack is formed in the pair of rack bars 42a and 42b in directions opposite to each other so that the movable spherical athlete 10 can be moved only along the rail 40 without being released to the left or right.

The pair of rack bars 52a and 52b may be formed so that the racks face outwardly so as not to face each other in the directions opposite to each other (see FIG. 6). Even in this case, the movable spherical athlete 10 has a structure that can be moved only along the rails without being released to the left or the right.

Hereinafter, a process in which the movable spherical athlete 10 moves between the upper portion and the lower portion of the forward portion 2 according to the operating conditions will be described.

FIGS. 7 to 10 are views showing a state in which the movable concrete player moves from the upper part to the lower part of the bow. Figures 7 (b) and 10 (b) show a cross-sectional view for an understanding of the invention.

As shown in Fig. 7, it is assumed that the movable spherical athlete 10 is secured to the top position of the bow portion 2, first.

7, a mounting space 5 for mounting the movable spherical athlet 10 is formed on the upper part of the bow 2. When a spherical athlete is not required in the navigation of the ship, The mobile spherical athlete 10 is fixed in the mounting space 5 formed in the base 5 and then operated.

It is necessary to extend the length of the support arm 30 so that the bulb body 20 fixed to the mounting space 5 can be extended from the hull by extending the length of the support arm 30 (See Fig. 8).

Thereafter, the support arm 30 is rotated downward along the rail 40 by rotating the pinion gear 32 provided at the other end of the support arm 30 (see FIG. 9). In this case, one end of the support arm 30 and the fixing portion 22 of the bulb body 20 are hinged to each other, so that the inclination of the bulb body 20 can be changed according to the shape of the bulge portion 2, Interference with the hull can be eliminated. The inclination of the bulb body 20 can be determined by the angle of rotation at one end of the support arm 30 and the point of engagement of the fixing portion 22 and the angle of rotation can be determined according to the height of the bulb body 20. [ In this embodiment, the rotation between the fixed portion 22 and one end of the support arm 30 can be performed by a separate motor (not shown).

When the movable spherical athlete 10 reaches the lower portion (attachment point) of the bow portion 2, the length of the support arm 30 is shortened so that the bulb body 20 spaced from the hull is pulled by the hull so as to be closely contacted 10).

In this case, the hull contact surface of the bulb body 20 has a shape corresponding to the lower portion of the bow portion 2, so that the tight contact can be achieved. The hull contact surface may be provided with a rubber damper. In this case, the inner space of the bulb body 20 can be completely watertight. In the case where the movable spherical athlete 10 is dismounted from the attachment point at the lower portion of the bow portion 2, the installation process may be performed in the order reverse to that of FIGS.

When the vessel is an ice-class vessel, when the ice section is operated, a spherical athlete is unnecessary. As shown in FIG. 7, the movable spherical athlete 10 can be mounted in the loading space 5. In this case, as compared with the conventional one shown in Fig. 2, the weight of the bow 2 increases, so that the braking performance can be improved.

In addition, when operating the marine vessel other than the ice section, the mobile spherical athlete 10 can be installed at the attachment point of the lower portion of the bow portion 2 as shown in Fig.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit or scope of the invention as defined in the following claims And changes may be made without departing from the spirit and scope of the invention.

10: mobile concrete player 20: bulb body
22: Fixing portion 24: Opening
30: Support arm 32: Pinion gear
40: rails 42a, 42b: rack bars
52a, 52b: rack bar 5: mounting space

Claims (6)

A rail extending in the vertical direction on the bow of the hull; And
And a movable ball protruding in a vertical direction along the rail,
The portable type contemplating athlete,
A bulb body having an opening formed in a hull contact surface and having a fixing portion in an inner space;
And a support arm having one end hinged to the fixed portion and the other end coupled to the pinion gear,
Wherein the support arm is adjustable in length. delete The method according to claim 1,
Wherein the rails include a pair of rack bars formed with racks engaging with the pinion gears, The method according to claim 1,
Wherein the hull contact surface has a shape corresponding to a bottom shape of the bow. The method according to claim 1,
Wherein a rubber damper is attached to the periphery of the hull contact surface. The method according to claim 1,
The vessel is an Ice Class vessel,
Wherein when the ice section is operated, the movable spherical athlete is mounted in a mounting space provided on the upper portion of the forefront portion, and when the marine vessel other than the ice section is navigated, the movable spherical athlete is moved to the lower portion of the forehead portion.

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