KR20130136945A - Helideck having tie-down - Google Patents

Abstract

A helideck having a tie-down is disclosed. The helideck having a tie-down according to an embodiment of the present invention may include a pancake having flanks which are connected to each other as a unit structural member for the helideck; a pancake lower structure connected to a space between the flanks and a hull; a main body part on the installation groove of the upper plate of a flank; a latch hinged to the hinge hole of the seating groove of the main body part; a support interposed between the lower surface of the main body part and the lower plate of the flank around a first engaging hole; and a main fixture joined to the first engaging hole, the axial center hole of the support, the through-hole of the lower plate of the flank, and the joint hole of the flange of the lower structure.

Description

HELIDECK HAVING TIE-DOWN < / RTI >

The present invention relates to a helideck having a tie down, and relates to a helideck having a tie down in which a plurality of ropes for fixing a helicopter are dispersed and fixed all over the helideck.

In offshore projects that are developing as a result of the accelerated development of deep-sea energy, floating structures or offshore plants are used for offshore projects, where many crew members have to stay in the distant seas for long periods of time.

Helicopters are an efficient and rapid means of transporting these offshore plants, taking off and landing using helidecks for offshore helicopter landing and landing.

Here, the helideck is located at the upper part of the residential zone of the offshore plant, so that the personnel are easy to access and the helicopter is arranged so that there is no obstacle to the takeoff and landing, which is an important means of access to the offshore plant and an emergency escape structure.

The helideck may include a pan cake corresponding to the deck floor where the helicopter takes off and land and a pillar structure supporting the pancake. Here, the pancake may include a pancake substructure having a bottom plate shape connecting plank to each other, and a pancake substructure having an H beam or girder coupled to the lower end of the flank. One end (e.g., upper portion) of the pillar structure may be connected to a beam or girder that is a pancake substructure, and the other end (e.g., lower portion) of the pillared structure may be connected to the hull.

In the patent document which is the background of the invention, tie-down which is means for fixing the rope is disclosed.

However, in the conventional tie down, the upper surface of the merlin flank corresponding to the top plate of the helideck and the tie down housing are simply screwed so that the helicopter's wheel directly contacts the tie down housing for landing, When the tie down housing is directly supported by the upper surface of the meridian flank, a portion of the upper surface of the meridian flank around the tie down housing from the upper surface of the meridian flank may be deformed There is a structural drawback.

That is, the conventional tie down is merely supported by a marine flank, and since the merlin flank has a hole for inserting the housing for installing the tie down housing in a recessed shape, The housing of the tie down can not be directly supported by the H-shaped beam, which is the pancake substructure connected to the hull, so that the helicopter landing or the helicopter landing It may not be able to withstand the loads caused by excessive rope pull due to extreme maritime environment changes.

Also, since the conventional tie down provides only the rocker pin connecting the inner sides of the inner space portion of the housing to each other, when the rope arranged radially to the center of the helicopter or helideck is connected to the locker pin, Since the position is fixed in the housing, it can not be adjusted in the extending direction of the rope. In order for the end of the rope to be connected to the rocker pin, the end of the rope is bent toward the rocker pin, So that a local bending force is applied to the bent point of the rope, which may endanger the stability of the rope.

Registration Utility Model No. 20-0460670

Embodiments of the present invention provide a plurality of tie downs radially disposed toward the center of the pancake of the heald deck, wherein the latch is hinged within the seat of the tie down body, To provide a helideck with a tie down which can be received in a seating groove, thereby making it possible to prevent the rope from breaking on a vertical plane.

The embodiment of the present invention provides a helideck having a tie down capable of exhibiting a stable supporting force even in an extremely marine environment since the body portion of the tie down is connected to the H type beam as the pancake substructure through the main fixture and the support I want to.

In addition, according to another embodiment of the present invention, the hinge-coupled latch itself is provided in the rotary type turntable disk unit, and the disk unit can be rotated by the rotation of the tie-down body unit with reference to the tie- And to provide a helical deck having a tie down capable of adjusting the direction of the clasp correspondingly and thus preventing the rope from being bent on a horizontal plane.

According to an aspect of the present invention, there is provided a pancake made by connecting flank, which is a unit structural member constituting a helideck; A pancake substructure connected between the flank and the hull; A main body installed in an installation groove of the upper plate of the flank; A latch hinged to the hinge hole of the seating groove of the main body; A support interposed between a bottom surface of the main body and a lower plate of the flange with respect to the first fastening hole of the main body; And a tie down including a tie-down hole, a shaft hole of the support, a through hole of a lower plate of the flange, and a main fixture coupled to a connection hole of a flange of the pancake substructure.

The main body may include: a body inserted into the installation groove; A body frame extending integrally from an outer periphery of the upper portion of the body so as to form a step smaller than a thickness of the body; The seating groove being formed at a center of the upper surface of the body so as to be deeper than the thickness of the latch; A first fastening hole formed in the thickness direction of the body around the seating groove; And a second fastening hole disposed along the body frame and formed in the thickness direction of the body frame.

Further, the latch may include a bent link bar-shaped or U-shaped ring portion; And pin portions integrally bent at both ends of the ring portion and rotatably coupled to the hinge holes.

In addition, the hook portion of the latch may be oriented toward the center of the pancake.

In addition, the present embodiment may further include a sub-fixture for coupling the body frame to the top plate of the flange through the second fastening hole.

In addition, the thickness of the body rim may be a multiple of 1 to 5 times the thickness of the upper plate of the flank.

In addition, the main body portion is radially arranged to correspond to each base line of the ring-shaped base with respect to the center of the pancake, and is sized to be disposed at an intermediate position of the upper plate of the flank, and may have a rectangular planar shape.

The main body may further include a reinforcing plate provided on a bottom surface of the main body below the seating groove.

According to another aspect of the present invention, there is provided a pancake made by connecting flank, which is a unit structural member constituting a helideck; A pancake substructure connected between the flank and the hull; A main body installed in an installation groove of the upper plate of the flank; A disk portion rotatably coupled to the rotation groove of the main body portion and having a seating groove; A latch hinged to a hinge hole of the seating recess of the disc portion; A support interposed between a bottom surface of the main body and a lower plate of the flange with respect to the first fastening hole of the main body; And a tie down including a tie-down hole, a shaft hole of the support, a through hole of a lower plate of the flange, and a main fixture coupled to a connection hole of a flange of the pancake substructure.

The rotating shaft protruding from the bottom of the disc portion may be supported by a bearing coupled to the center hole of the rotating groove.

The end of the rotating shaft may be coupled by a restricting portion located below the center hole of the rotation groove.

Further, the support may further include a ring-shaped protrusion integrally formed on the outer peripheral surface of the lower portion of the support.

A helideck with a tie down according to an embodiment of the present invention is positioned on a ring-shaped baseline relative to the center of the pancake when a plurality of tie downs are arranged radially, wherein each tie down is centered on the center of the flange And the main body of the tie down is connected to the H-shaped beam which is the pancake substructure through the main fixture and the support, so that it is possible to exhibit a stable support force even in an extremely marine environment.

In the embodiment of the present invention, the rim of the tie down body is brought into close contact with the upper plate of the flange by a plurality of sub-fasteners in addition to the main fastener, so that the body portion of the tie down can be brought into close contact with the upper plate of the flange.

Further, in the embodiment of the present invention, the latch can be tilted so as to draw an arc in the up-and-down direction with reference to the seating groove of the tie-down main body portion, so that the latch can be protruded at the time of use, It is possible to satisfy the safety standards of the helideck and minimize the bending of the rope to be connected to the tie down on the vertical plane.

Further, in another embodiment of the present invention, the latch and the disk are rotated (e.g., panning in the horizontal direction) toward the rope as the latch is tiltably coupled to the seating groove of the turntable disk portion, So that it is possible to minimize the bending of the rope on the horizontal plane by orienting the latch in accordance with the extending direction of the rope for fixing the helicopter.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a partial plan view of a ship equipped with a helideck with tie down according to the present invention;
2 is a plan view of a pancake flank of a first tie down and helideck according to a first embodiment of the present invention.
3 is a front view of the first tie down and flank shown in Fig. 2. Fig.
Fig. 4 is a view showing the side of the first tie down shown in Fig. 3; Fig.
5 is a layout diagram showing the arrangement of the first tie down for the pancakes shown in FIG.
6 is a plan view of a pancake flank of a second tie down and helideck according to a second embodiment of the present invention.
7 is a front view of the second tie down and flank shown in Fig. 6. Fig.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the following description of the present invention, detailed description of known functions and configurations incorporated herein will be omitted when it may make the subject matter of the present invention rather unclear. In the following description, the tie-down according to the embodiments of the present invention is a recess type in which the first tie down in which the latch is tilted on the vertical plane and the first tie down in which the latch is tilted on the vertical plane, And a second tie down that is panned on the horizontal plane at the same time. In addition, the body portion in the claims can be understood as referring to the first body portion or the second body portion in the following description.

1st Example

1 is a partial plan view of a ship equipped with a helideck with tie down according to the present invention.

Referring to FIG. 1, the helideck 100 may correspond to a helicopter landing area installed on the hull 10 by a pillared structure (not shown) and a pancake substructure (indicated by 20 in FIG. 2). At this time, the helideck 100 may include a pancake 110, a drainage channel 120 disposed along the outer periphery of the pancake 110, and a safety net 130 disposed along the outer periphery of the drainage channel 120.

Here, the hull 10 may be a floating structure such as a drillship (FPSO, war ship) or an offshore plant. However, considering that the floating structure is included in the range of the ship, It can be applied to other kinds of ships.

In the following description, the pancake 110 is provided with at least one first tie down 200 to which the rope is connected or a second tie down 200 to which the rope is connected so as to fix the equipment for maintenance of the helicopter or the helicopter landed, A second tie down to be described with reference to Fig.

FIG. 2 is a plan view of a pancake flank of a first tie down and helideck according to a first embodiment of the present invention, FIG. 3 is a front view of a first tie down and a flank shown in FIG. 2, 4 is a side view of the first tie down shown in Fig.

2 and 3, the helideck 100 according to the first embodiment includes a pancake 110, a pancake substructure 20, a first body 210 of the first tie down 200, A latch 220, a main fixture 300, and a support 310.

The pancake 110 may be a structure formed by connecting the flank 111, which is a unit structural member constituting the helideck 100, to each other.

The pancake substructure 20 is a kind of support or skeleton structure provided on the hull 10 and may be connected between the flank 111 and the hull 10. More specifically, the pancake substructure 20 includes an intermediate web 22 and an H-beam or girder (not shown) including a flange 21 integrally formed at the top or bottom of the web 22 ). In the following description, it is assumed that the pancake substructure 20 is an H-shaped beam made of aluminum alloy or stainless steel. It is not necessarily limited to the H-beam and any structural member capable of supporting the pancake 110 Can be.

The pancake substructure 20 is formed by using either the fixing groove 111b of the lower plate 111a of the flank 111 and the flange fixing bolt 111c or a clamp (not shown) or a side clip (not shown) And is connected to each flank 111 so as to support each flank 111.

Both ends of the top plate 111d of each flank 111 are provided with a mating protrusion 111e and a mating groove 111f that can be interlocked with each other. At this time, the flank 111 may be connected to another adjacent flank 112 (see Fig. 5), and eventually become the pancake 110. Fig.

The first tie down 200 may serve to secure a rope or the like extending from the helicopter to the pancake 110.

The first tie down 200 may include a first body portion 210 installed in such a manner that the first tie down 200 is inserted into the installation groove 114 of the upper plate 111d of the flank 111. [

The first body 210 has a body 218 inserted into the attachment groove 114 and a second body 218 formed to have a thickness smaller than that of the body 218, And a mounting recess 213 formed at a center of the upper surface of the body 218 so as to be deeper than the thickness of the latch 220. The mounting recess 213 is formed in the body 218 formed in the thickness direction of the body frame 219 and a second fastening hole 214 formed in the thickness direction of the body frame 219 and spaced apart from the body frame 219, 216).

Since the first main body 210 has a rectangular planar shape that is large enough to be disposed at an intermediate position of the top plate 111d of the flank 111 and has a larger contact area than a general circular shape, Can be exercised. For example, the first main body 210 may have a rectangular planar shape in which a corner portion is round. That is, the long side W1 is longer than the short side W2 with respect to the plane of the first main body 210.

The latch 220 may be hinged to the hinge holes 211 and 212 of the seating groove 213 of the first body 210 and rotated on a vertical plane with reference to the upper surface of the first body 210 .

For this purpose, the latch 220 is integrally bent at both side ends of the hook 229 and a bent link bar-shaped or U-shaped ring portion 229, and is rotatably supported by the hinge holes 221 and 222 And may include pin portions 221 and 222, possibly combined.

Therefore, when the latch 220 is used, a part of the latch 220 that can hang the rope is protruded outside the seating groove 213, or when the latch 220 is not used, Since the operation of tilting (S) is possible, it is possible to satisfy helideck safety standard in which there is no excessively protruding structure when the helicopter lands.

The main fixture 300 may be a bolt and nut assembly for mounting the first tie down 200 to the flank 111. The main fixture 300 may include a bolt head portion that is seated in the first fastening hole 214 and a threaded portion 301 that is longer than the vertical overall thickness of the flange 111 from the bolt head. A fixing nut 320 is coupled to the lower end of the threaded portion 301.

The main fixture 300 includes a first fastening hole 214, a shaft hole 311 of the support 310 and a through hole 111g of the lower plate 111a of the flank 111. The pancake substructure 20, And a threaded portion 301 that is coupled to the connection hole 23 of the flange 21 of the base plate 30.

The support 310 may be provided for each of the first fastening holes 214 of the first main body 210. The support 310 includes a hollow shaft, a bushing or the like interposed between the bottom surface of the first main body 210 and the lower plate 111a of the flank 111 with respect to the first fastening holes 214 .

A ring-shaped protrusion 312 is formed on the outer peripheral surface of the lower portion of the support 310 to position and support the support 310. Therefore, when the lower end of the support 310 is inserted into the through hole 111g of the lower plate 111a of the flank 111, the ring-shaped protrusion 312 can be brought into contact with the upper surface of the rim of the through hole 111g . As a result, the support 310 can be upright in a direction perpendicular to the lower plate 111a of the flange 111 in the through hole 111g, so that the threaded portion 301 of the main fixture 300 can be easily It can be inserted into the shaft hole 311 of the support 310, so that the fastening operation of the main fixture 300 can be facilitated.

The first tie down 200 is fastened to the second fastening holes 216 and the body frame 219 is connected to the upper plate of the flank 111 through the second fastening holes 216 111d. ≪ / RTI >

Here, the sub-fastener 390 may be a rivet, and the sub-fastener 390 may be inserted into the second fastening hole 390 relatively fast, in a situation in which a relatively large number of fastening operations are required as compared with the main fastener 300 216). However, the sub-fastener 390 may be a stud bolt, a screw thread, or the like, which is a similar fastener instead of the rivet, and thus may not be limited to the rivet.

The thickness t of the body rim 219 is of course 1 to 5 times larger than the thickness h of the top plate 111d of the flank 111 while being formed to be much thinner than the thickness of the body 218 It can have the size of any one multiple.

Since the thickness h of the top plate 111d may be 5t (for example, 5mm), the thickness t of the body frame 219 may be any one of 5 to 25t. Considering the size of the entire pancake 110 or the entire thickness of the flank 111 or the size of the wheel of the helicopter, this is a very small size and forms only a very small step, And the upper surface of the first body portion 210 of the first tie down 200 may be formed to be substantially flat.

The first main body 210 is provided on the bottom surface of the first main body 210 below the seating groove 213, for example, on the bottom surface of the body 218 of the first main body 210, (230) may be further secured by welding. The reinforcing plate 230 may be located at a vertically lower portion of the latch 222 to increase the structural rigidity of the seating groove 213.

5 is a layout diagram showing the arrangement of the first tie down for the pancakes shown in FIG.

5, each of the first tie downs 200 may be radially arranged so as to coincide with the respective base lines R1, R2, and R3 of the ring shape on the basis of the center C of the pancake 110. As shown in FIG.

The hook of the latch 220 of the first tie down 200 faces the center C of the pancake 110 of the helideck 100. The pin of the latch 220 is coupled to the hinge hole of the seating groove so that the stability of the rope (for example, prevention of rope breakage) can be secured.

At this time, the direction of each latch 220 for each first tie down 200 is set at a predetermined angle at the time of designing of the pancake 110 based on the first center line CL1 or the second center line CL2, (Not shown) of each of the flank 111 and 112 while facing the center C of the pancake 110 at the installation position of the down 200, And may have different angles for each tie down 200.

In this case, when the helicopter (not shown) normally landed or landed on the basis of the center C of the pancake 110, a rope (not shown) connected to the first tie- The helicopter and the pancake 110 can be secured to each other.

Second Example

The helideck having the tie down described in this embodiment is technically identical to the first embodiment except that the latch is mounted on the disk portion and the disk portion is rotated in the second body portion. Therefore, the same or corresponding elements in Figs. 1 to 7 will be given the same or similar reference numerals, and a description thereof will be omitted here.

FIG. 6 is a plan view of a pancake flank of a second tie down and helideck according to a second embodiment of the present invention, and FIG. 7 is a front view of the second tie down and the flank shown in FIG.

6 and 7, the second embodiment includes a pancake 110 formed by connecting flank 111, which is a unit structural member constituting the helideck 100, and a pancake 110 connected between the hull and the flank 111. [ And a second body portion 210a for the second tie down 200a installed in the installation groove 114 of the upper plate 111d of the flank 111. The second body portion 210a for the second tie down 200a,

The second body portion 210a includes a body 218 inserted into the mounting groove 114 and a body frame 219 extending integrally with the body 218 to cover the rim of the mounting groove 114, And a rotation groove 217 formed at the center of the upper surface of the body 218.

The second tie down 200a may include a disc portion 400, a latch 220, a support 310, a main fixture 300, and a sub-fixture 390.

The disk unit 400 is a disc-shaped component capable of rotating in the form of a turntable. The disc unit 400 is protruded downward from the bottom of the disc unit 400 so as to be rotatably engaged in the rotation groove 217 of the second body unit 210 And a seating groove 413 provided on the central upper surface of the disk unit 400 and capable of seating the latch 220.

In particular, the latch 220 hinges the pin portions 221 and 222 to the hinge holes 411 and 412 of the seating groove 413 of the disk unit 400, unlike the first embodiment.

The second tie down 200a is formed between the bottom surface of the second main body 210 and the lower plate 111a of the flank 111 with respect to the first fastening hole 214 of the second main body 210. [ A through hole 111g of the lower plate 111a of the flank 111 and a center hole 311 of the support 310. The support 310 interposed in the pancake lower part And a main fixture 300 coupled to the connection hole 23 of the flange 21 of the structure 20 and fastened to the fixing nut 320 at the bottom of the flange 21.

Particularly, the rotating shaft 410 protruding from the bottom of the disk unit 400 can be supported by the bearing 420 coupled to the center hole 215 of the rotating groove 413 to be smoothly rotated.

The end of the rotation shaft 410 may be coupled with the restricting portion 430 located below the center hole 215 of the rotation groove 413. The restricting portion 430 may be a locking nut or a double nut so that the disk portion 400 is rotatable but the disk portion 400 is not detached from the rotation groove 413 .

The second tie down 200a is capable of tilting (S) and fan (R) the distance portion 229 with respect to the pin portions 221 and 222 of the latch 220, And the rope may be easily connected to the second tie down 200a, that is, the rope may be connected to the latch 220.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, You will understand. For example, a person skilled in the art can change the material, size and the like of each constituent element depending on the application field or can combine or substitute the embodiments in a form not clearly disclosed in the embodiments of the present invention, Of the range. Therefore, it should be understood that the above-described embodiments are to be considered in all respects as illustrative and not restrictive, and that such modified embodiments are included in the technical idea described in the claims of the present invention.

10: Hull 20: Pancake substructure
100: Heli Deck 110: Pancakes
111, 112: Flank 120: Drain
130: safety net 200, 200a: tie down
210, 210a: main body 220: latch
230: reinforcing plate 300: main fixture
310: Support 390: Sub-
400: disk unit 430:

Claims (12)

Pancakes made by connecting flank, a unit structural material that constitutes helideck;
A pancake substructure connected between the flank and the hull;
A main body installed in an installation groove of the upper plate of the flank;
A latch hinged to the hinge hole of the seating groove of the main body;
A support interposed between a bottom surface of the main body and a lower plate of the flange with respect to the first fastening hole of the main body; And
And a tie down including a first fastening hole, a shaft hole of the support, a through hole of a lower plate of the flange, and a main fixture coupled to a connection hole of a flange of the pancake substructure. The method of claim 1,
The body part includes: a body inserted into the installation groove;
A body frame extending integrally from an outer periphery of the upper portion of the body so as to form a step smaller than a thickness of the body;
The seating groove being formed at a center of the upper surface of the body so as to be deeper than the thickness of the latch;
A first fastening hole formed in the thickness direction of the body around the seating groove; And
And a second fastening hole spaced apart along the body rim and formed in the thickness direction of the body rim. The method of claim 1,
The latch includes a bent link bar-shaped or U-shaped hook portion; And
And a pin portion integrally bent at both ends of the ring portion and rotatably coupled to the hinge hole. The method of claim 3, wherein
Characterized in that the hook portion of the latch is directed towards the center of the pancake. 3. The method of claim 2,
Further comprising a sub-fastener for coupling the body rim to the top plate of the flank via the second fastening hole. The method of claim 5, wherein
Wherein the thickness of the body rim has a tie down dimension that is a multiple of any one of 1 to 5 times the thickness of the top plate of the flank. The method of claim 1,
Wherein the main body portion is radially arranged so as to coincide with the respective base lines of the ring shape with respect to the center of the pancake and is sized to be disposed at an intermediate position of the upper plate of the flank and has a rectangular planar shape. Lt; / RTI > The method of claim 1,
And the main body portion further includes a reinforcing plate provided on a bottom surface of the main body portion below the seating groove. Pancakes made by connecting flank, a unit structural material that constitutes helideck;
A pancake substructure connected between the flank and the hull;
A main body installed in an installation groove of the upper plate of the flank;
A disk portion rotatably coupled to the rotation groove of the main body portion and having a seating groove;
A latch hinged to a hinge hole of the seating recess of the disc portion;
A support interposed between a bottom surface of the main body and a lower plate of the flange with respect to the first fastening hole of the main body; And
And a tie down including a first fastening hole, a shaft hole of the support, a through hole of a lower plate of the flange, and a main fixture coupled to a connection hole of a flange of the pancake substructure. The method of claim 9,
And a rotating shaft protruding from a bottom portion of the disc portion is supported by a bearing coupled to a center hole of the rotating groove. 11. The method of claim 10,
And an end of the rotating shaft is coupled by a restricting portion located below the center hole of the rotation groove. 10. The method of claim 1 or 9,
The support further includes a ring-shaped protrusion integrally formed on an outer peripheral surface of a lower portion of the support.

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