KR102097762B1 - Lightweight helideck plank - Google Patents

Abstract

The present invention relates to a lightweight helideck plank and, more specifically, to a lightweight helideck plank which is light while maintaining high rigidity by being applied with a composite material. According to the present invention, the lightweight helideck plank includes an upper plank and a lower plank. The upper plank includes: a lower support unit having a plurality of connection units formed to be dented from the lower surface to the upper side; a pair of diagonal support units extending from both ends in the width direction of the lower support unit to be inclined upwards; an upper flat plate unit connecting upper ends of the diagonal support units to each other; and first and second fastening units capable of fastening a plurality of helideck planks to each other by being formed on one side of each diagonal support unit in a shape corresponding to each other. The lower plank is formed of the composite material, and has a plate-shaped lower support unit arranged in the lower part thereof. The lower plank includes a plurality of upper support units provided on the upper side of the lower support unit and having an upper end horizontally extending to be connected to the inner side of the connection unit to slide.

Description

Lightweight helideck plank

The present invention relates to a lightweight heli-deck flank, and more particularly, to a lightweight heli-deck flank while maintaining high rigidity by applying a composite material.

In general, offshore plants, such as drill ships or floating, production, storage and offloading (FPSO), or ships that need to stay for a long time on the sea, use a helicopter to move personnel or materials. To do this, a helideck can be installed on the bow or stern for takeoff and landing of the helicopter.

The helicopter deck is largely composed of a pancake forming a deck floor on which the helicopter takes off and landing, and a pancake support unit supporting the pancake. The pancake is connected with a plurality of planks to support the helicopter. The pancake support portion may include an H-type beam or the like of a steel material capable of supporting the pancake.

On the other hand, in recent years, development of technologies related to high-strength and lightweighting of equipment has been actively conducted to reduce the construction cost and oil cost of ships and offshore structures, and to extend the life cycle and secure higher structural integrity, and the heli-deck is no exception.

The structure, shape, and weight of the heli-deck depends on the shape and size of the offshore structure or ship, the place of installation, and the effect of the movement of the ship, and according to the trend of the technology market, the pancake unit Various studies are being conducted, such as structural optimization for flanks and raw material changes.

As an example, the conventional helitech is made of steel, but as is known from Korean Patent Registration No. 10-2052250 (Assembly Heliport), Korean Patent Registration No. 10-1738344 (Heliport), etc. Compared to ash, the strength is about two-thirds, but the density is more than three times lower, so it is widely used as an aluminum material suitable for weight reduction.

However, in the case of an aluminum heli-deck, the still heavy weight is a problem to be solved. In addition, in the conventional heli-deck made of aluminum, the pancake support of a steel material installed to support under the pancake is joined to an aluminum flank. Due to the structure, there is a possibility that galvanic corrosion or bimetallic corrosion occurs due to contact between dissimilar metal members.

Republic of Korea Registered Patent Publication No. 10-2052250 (2012.11.21.) Republic of Korea Registered Patent Publication No. 10-1738344 (2017.05.16.)

The present invention has been devised to solve the above problems, and the object of the present invention is to apply a composite material to maintain a high stiffness and durability to enable safe takeoff and landing of a helicopter, while minimizing the weight of its own lightweight heli-deck flank. Is to provide.

The objects of the present invention are not limited to the objects mentioned above, and other objects not mentioned will be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, the present invention, the lower support portion having a plurality of engaging portions formed in the upper surface from the bottom, and the pair of diagonal support extending obliquely upward from both ends in the width direction of the lower support portion, the diagonal It includes an upper flat plate for connecting the upper end of the support portion, the upper flank is provided with a first fastening portion and a second fastening portion is formed in a shape corresponding to each other on each side of the diagonal support portion to enable fastening a plurality of heli-deck flanks; And a lower flap formed of a composite material, the lower support portion of the plate-shaped lower portion being disposed, and the upper portion horizontally extending above the lower supporting portion provided with a plurality of upper supporting portions slidably coupled inside the coupling portion; Lightweight heli-deck flank can be provided.

At this time, the composite material is characterized in that it is formed by curing and then immersed in a thermosetting resin composition, a reinforcing material woven by mixing at least one selected from glass fibers and aramid fibers with carbon fibers.

In addition, the carbon fiber includes at least one selected from the group consisting of polyacrylonitrile-based carbon fiber, pitch-based carbon fiber, rayon-based carbon fiber, and lignin-based carbon fiber, and has an average single fiber diameter of 1 to 20 μm. It is characterized by being.

Meanwhile, the thermosetting resin composition is a group consisting of bisphenol A-type epoxy resin, phenol novolak-type epoxy resin, cresol novolak-type epoxy resin, tetraglycidyl diaminodiphenylmethane epoxy resin, and triglycidylaminophenol epoxy resin. It characterized in that it comprises 100 parts by weight of a thermosetting resin comprising at least one selected from, and 1 to 10 parts by weight of an amine-based curing agent based on 100 parts by weight of the thermosetting resin.

On the other hand, the upper flank is disposed between the oblique support portions and extends vertically from the upper surface of the lower support portion, and is characterized by including a vertical support portion supporting the upper flat plate portion.

In addition, the first fastening part, the lower protruding jaw, the upper protruding jaw more protruding outward than the lower protruding jaw, which is located on the same line as the transverse end of the upper flat plate part, is spaced apart from each other by a predetermined interval. A first fastening groove into which the second fastening part is inserted and coupled is formed, and the second fastening part is provided with a second fastening groove recessed in a shape corresponding to the upper protruding jaw of the first fastening part on the upper part, and at the lower part. It is characterized in that a protruding jaw protruding in a shape corresponding to the first fastening groove is provided, and the lower end of the protruding jaw is recessed to correspond to the lower protruding jaw to form a stepped portion.

In addition, the engaging portion is projected to face each other on the inner lower portion, the upper surface is formed to be inclined at a predetermined angle, characterized in that it comprises a locking jaw to support the upper support.

In addition, the upper flat plate portion is characterized in that the triangular projection and the rectangular projection projecting upward on the upper surface are alternately arranged to improve the frictional force on the upper surface of the upper flat plate portion.

In addition, the upper flat plate portion is characterized in that it comprises a plurality of drainage grooves formed through the form of narrowing the width toward the bottom.

The present invention applies a composite material, while maintaining high rigidity and durability to enable safe take-off and landing of helicopters, while minimizing the weight of the heli-deck flan itself to reduce the weight, thereby affecting the structural integrity of the marine structures or ships where the heli-deck is installed. There is an advantage that can be minimized.

1 is a perspective view of a lightweight heli-deck flank according to a preferred embodiment of the present invention.
2 is a front sectional view of a lightweight heli-deck flank according to a preferred embodiment of the present invention.
Figure 3 is a perspective view schematically showing the combined state of the upper and lower flanks of the lightweight heli-deck flank according to a preferred embodiment of the present invention.
Figure 4 is a perspective view schematically showing the coupling state of the first fastening part and the second fastening part of the lightweight heli-deck flank according to the preferred embodiment of the present invention.

Advantages and features of the present invention, and methods for achieving them will be clarified with reference to embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various different forms, and only the present embodiments allow the disclosure of the present invention to be complete, and the ordinary knowledge in the technical field to which the present invention pertains. It is provided to fully inform the holder of the scope of the invention, and the invention is only defined by the scope of the claims.

Hereinafter, specific contents for carrying out the present invention will be described in detail with reference to the accompanying drawings. The same reference numerals refer to the same components regardless of the drawings, and "and / or" includes each and every combination of one or more of the mentioned items.

Although the first, second, etc. are used to describe various components, it goes without saying that these components are not limited by these terms. These terms are only used to distinguish one component from another component. Therefore, it goes without saying that the first component mentioned below may be the second component within the technical spirit of the present invention.

The terminology used herein is for describing the embodiments, and is not intended to limit the present invention. In this specification, the singular form also includes the plural form unless otherwise specified in the phrase. As used herein, “comprises” and / or “comprising” does not exclude the presence or addition of one or more other components other than the components mentioned.

Unless otherwise defined, all terms (including technical and scientific terms) used in the present specification may be used as meanings commonly understood by those skilled in the art to which the present invention pertains. In addition, terms defined in the commonly used dictionary are not ideally or excessively interpreted unless specifically defined.

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

1 is a perspective view of a lightweight heli-deck flank according to a preferred embodiment of the present invention.

As shown in FIG. 1, the lightweight heli-deck flank is formed by combining an extruded upper flank 100 made of aluminum and a lower flank 200 made of a composite material.

The upper flank 100 is disposed above the heli-deck flank, and the lower flank 200 is positioned below the upper flank 100 to serve to support the upper flank 100.

In addition, when the pancake support portion made of steel is installed under the heli-deck flank, the lower flank 200 is interposed between the upper flank 100 and the pancake support portion, and is generated by contact between dissimilar metal members. It can prevent galvanic corrosion or bimetallic corrosion.

In addition, when the upper flank 100 made of aluminum is installed on the upper side of the lower flank 200 of a composite material, when a fire occurs in Helitech due to a helicopter accident, the upper flank 100 is the lower flank 200 As it prevents the flames from moving or the heat is applied, it is possible to minimize damages such as damage to the heli deck by fire.

2 is a front sectional view of a lightweight heli-deck flank according to a preferred embodiment of the present invention.

As illustrated in FIG. 2, the upper flank 100 includes a lower support portion 110, a diagonal support portion 120, and an upper flat plate portion 130.

The lower support portion 110, the diagonal support portion 120 and the upper flat plate portion 130 are integrally formed, more preferably, the lower support portion 110 is formed in a plate shape to form the upper flank 100 Forming a lower surface of the lower support portion 110, and a pair of the diagonal support portions 120 extending upwardly at both ends in the width direction, so that the diagonal support portions 120 are opposite side walls of the upper flank 100 The upper flat plate 130 forms an upper surface of the upper flank 100 by interconnecting the upper ends of the diagonal support portions 120.

At this time, the pair of diagonal support portions 120 are formed to be inclined at a predetermined angle to the outside of the heli-deck flank, respectively, so that the distance therebetween gradually widens toward the upper side.

That is, the lower support portion 110, the diagonal support portion 120 and the upper flat portion 130 forms the outer periphery of the upper flank 100, the cross-section of the upper end is wider and narrower toward the lower end of the upper light tubercle ( It has the shape of an upper leg, that is, a historical trapezoid.

In addition, a first fastening part 140 and a second fastening part 150 formed in a shape corresponding to each other are provided on each side of the diagonal support part 120 so that a plurality of heli-deck flanks are arranged adjacent to each other to form a pancake shape. Enable mutual fastening.

In addition, the lower support portion 110 is formed with a plurality of coupling portions 112 are recessed upward from the lower surface for the coupling of the upper flank 110 and the lower flank 200, An engaging jaw 113 protruding to face each other is formed at an inner lower portion of the coupling portion 112 to support the lower flank 200 from being separated from the upper flank 100.

In addition, a plurality of vertical supports 160 extending vertically from the upper surface of the lower support portion 110 to vertically support the upper flat plate 130 may be provided between the diagonal support portions 120.

Accordingly, the upper flat plate portion 130 horizontally disperses the external force applied to the heli-deck flank due to the takeoff and landing of the helicopter, and is supported by the vertical support portion 160.

In addition, the upper flat plate 130 is formed with projections 132-1 and 132-2 protruding upward, preferably triangular triangular projections 132-1 and rectangular quadrangular projections 132-2. By alternately arranged, the surface frictional force of the upper surface of the upper flank is improved, thereby preventing the occurrence of a safety accident due to slippage or the like on the heli deck.

In addition, the upper flat plate 160 is formed with a plurality of through-draining grooves 134 having a narrower width toward the lower portion so that rainwater and the like are drained, so that the helicopter can safely take off and land.

Meanwhile, the lower flank 200 includes a lower support portion 210 and an upper support portion 220.

The lower support part 210 is formed in a plate shape and disposed under the lower flank 200, and a plurality of the upper support parts 220 are provided above the lower support part 210.

The upper support portion 220 has an upper end extending horizontally and coupled to the inside of the coupling portion 112 of the upper flank 100, preferably the upper supporting portion 220 has the shape of an H-type beam or an I-beam. It may be manufactured to have the lower support 210, the upper surface of the adhesive can be formed, but is not limited to, the upper support 220 can be easily changed to a structure formed integrally with the lower support 210.

As mentioned above, the lower support portion 210 and the upper support portion 220 of the lower flank 200 are made of the composite material.

The composite material is obtained by laminating a reinforcing material in a mold and impregnating the reinforcing material in the vacuum in a vacuum state by injecting a defoamed thermosetting resin composition, followed by curing.

The reinforcing material is a fabric woven by mixing at least one selected from glass fiber and aramid fiber with carbon fiber, and generally, glass fiber is heavier than carbon fiber and somewhat inferior in strength and rigidity, but is inexpensive, but the cost of the reinforcing material is low. While a reduction can be expected, aramid fibers are less brittle than carbon fibers and glass fibers, and have excellent heat resistance and flame retardancy to carbonize beyond 500 degrees, and are also resistant to friction to compensate for the mechanical properties of carbon fibers to improve the durability of the reinforcement material. Can be improved.

Here, the carbon fiber includes at least one selected from the group consisting of polyacrylonitrile (PAN) -based carbon fiber, pitch-based carbon fiber, rayon-based carbon fiber, and lignin-based carbon fiber, preferably strength. And it is preferable that the polyacrylonitrile (PAN) -based carbon fiber in consideration of mechanical properties such as elastic modulus and price.

In general, carbon fiber is surface-treated by one or more methods, and a suitable surface treatment method is to oxidize the carbon fiber surface by an appropriate method to coat it with materials such as polyamide, urethane and epoxy.

Here, oxidizing the surface of the carbon fiber by an appropriate method is achieved by introducing a functional group capable of expressing excellent adhesion with the coating material, which may help to improve the reparability of the fibers in the composition.

In addition, the carbon fiber of the present invention has an average single fiber diameter of 1 to 20 µm, preferably 4 to 15 µm, and more preferably 6 to 8 µm.

When the average single fiber diameter of the carbon fiber is less than 1 μm, sufficient mechanical properties cannot be expected, and when it exceeds 20 μm, the specific strength reinforcement effect is deteriorated.

 In addition, the carbon fiber is preferably within about 30 to 80% by weight based on the total weight of the composite material composition, more preferably 40 to 50% by weight.

If the carbon fiber is less than 30% by weight based on the total weight of the composition, the required mechanical properties cannot be obtained, and if it exceeds 80% by weight, a problem in moldability deterioration may occur because the resin during molding is difficult to impregnate the reinforcing material sufficiently. It can also be disadvantageous in terms of weight reduction.

In addition, the reinforcing material can be formed of three types of plain weave, plain weave, twill weave, and satin weave, as in general fabrics, and can be modified and applied according to the requirements of the final molded product. .

Meanwhile, the thermosetting resin composition includes a thermosetting resin and a curing agent.

The thermosetting resin may be any resin known in the art, such as epoxy resin, polyester resin, vinyl ester resin, polyimide resin or phenol resin, but has excellent mechanical and thermal properties, and 2 per molecule It is preferable to use an epoxy resin having the above epoxy group.

The epoxy resins include, for example, diglycidyl ethers of bisphenols such as bisphenol A, bisphenol F, and bisphenol S (so-called bisphenol-based epoxy resins), epoxy phenol novolacs, polyfunctional epoxy resins, and halogenated derivatives thereof It includes.

Chlorine and bromine are the most commonly used halogens to prepare halogenated derivatives, and brominated epoxy resins can impart incombustibility to the composition.

Specific examples of the epoxy resin include glycidyl ether obtained from polyol, glycidyl amine having a plurality of active hydrogens, poly carboxylic acid glycidyl ester, and poly epoxide obtained by oxidizing a compound having a plurality of double bonds in a molecule, etc. Can be mentioned.

For example, bisphenol type epoxy resins such as bisphenol A type epoxy resin, bisphenol F type epoxy resin, bisphenol S type epoxy resin, tetrabromo bisphenol A type epoxy resin, phenol novolac type epoxy resin, cresol novolac type epoxy resin Novoxyl type epoxy resins such as, glycidyl amine type epoxy resins such as tetra glycidyl diamino diphenyl methane, triglycidyl amino phenol, tetra glycidyl xylene diamine, and the like, or combinations thereof are preferably used.

 More preferably, bisphenol A type epoxy resin, phenol novolak type epoxy resin, cresol novolak type epoxy resin, tetraglycidyl diamino diphenylmethane (TGDM) epoxy resin and triglycidyl aminophenol (TGAP) epoxy resin It may include one or two or more selected from the group consisting of.

The curing agent may be used as long as it is a compound having an active group capable of reacting with an epoxy group, and the amine-based curing agent and acid anhydride-based curing agent correspond to this.

As the amine curing agent, aliphatic amines such as ethylenediamine, ethylenetriamine, triethylenetetramine, hexamethylenediamine, and m-xylenediamine, metaphenylenediamine, diaminodiphenylmethane, diaminodiethyldiphenylmethane, and dia Aromatic amines such as minodiethyldiphenylsulfone, tertiary amines such as benzyldimethylamine, tetramethylguanidine, 2,4,6-tris (dimethylamino methyl) phenol, and basic active hydrogen compounds such as dicyandiamide, , Imidazoles such as organic acid dihydrazide such as adipic acid dihydrazide, 2-methylimidazole, 2-ethyl-4-methylimidazole, and the like.

The acid anhydride-based curing agent is an aliphatic acid anhydride such as polyadipic acid anhydride, poly (ethyl octadecane diacid) anhydride, polysebacic anhydride, methyl tetrahydro anhydride phthalic acid, hexahydro anhydride phthalic acid, methyl cyclohexene dicarboxylic acid anhydride, etc. And aromatic acid anhydrides such as alicyclic acid anhydride, futalic anhydride, trimellitic anhydride, pyromellitic anhydride, glycerol tris trimellitate, and halogen-based acid anhydrides such as hetic anhydride and tetrabromohydric phthalic anhydride. .

However, in the present invention, since the composite material is cured at a relatively low temperature, it is preferable that the amine-based curing agent is used as the curing agent, and more preferably, a basic active hydrogen compound can be used among the amine-based curing agents.

The thermosetting resin composition is composed of 100 parts by weight of the thermosetting resin and 1 to 10 parts by weight of the curing agent based on 100 parts by weight of the thermosetting resin, and preferably contains 2 to 9 parts by weight of the curing agent.

Furthermore, the thermosetting resin composition may further include flame retardants, antioxidants, thermal stabilizers, lubricants, dyes, pigments, and inorganic fillers, if necessary.

In manufacturing the lower flank 200 using the composite material, the thermosetting resin composition preferably has a viscosity of 10 to 1000 cps or less, more preferably about 200 to 400 cps or less.

If the viscosity of the thermosetting resin composition is less than 10 cps, problems such as deterioration of physical properties and formation of bubbles due to evaporation of low-molecular-weight components may occur during curing, and when it exceeds 1000 cps, the fluidity during molding falls, so that the resin is not sufficiently impregnated. Air bubbles from impregnation may occur.

Figure 3 is a perspective view schematically showing the combined state of the upper and lower flanks of the lightweight heli-deck flank according to a preferred embodiment of the present invention.

As shown in FIG. 3, the coupling portion 112 formed on the lower supporting portion 110 has a cross section of the upper support portion 220 in cross section by the locking jaws 113 protruding opposite to each other on the inner lower portion. An empty space of '┬' shape similar to the shape of is formed.

Therefore, the upper end of the upper support portion 220 can be slidably coupled to the space formed in the coupling portion 112.

At this time, the locking jaw 113 supports the lower side of the horizontally extended portion of the upper side of the upper support portion 220 so that the lower flank 200 does not deviate from the upper flank 100.

In addition, the upper surface of the locking jaw 113 is formed to be inclined at a predetermined angle to be in close contact with both ends of the horizontally extending portion of the upper side of the upper supporting portion 220 to fix the upper supporting portion 220, but the upper side When the upper support portion 220 is sliding by minimizing the area where the lower surface of the upper portion of the support portion 220 horizontally extends and the locking jaw 113 contacts, the upper supporting portion 220 and the locking jaw 113 The frictional resistance generated therebetween can be reduced to facilitate the coupling of the upper flank 100 and the lower flank 200.

4 is a perspective view schematically showing a coupled state of the first fastening part and the second fastening part of the lightweight heli-deck flank according to the preferred embodiment of the present invention.

As shown in FIG. 4, the first fastening part 140 and the second fastening part 150 have shapes corresponding to each other so that they can be fastened to each other, so that a plurality of the heli-deck flanks can be fastened to each other. To do.

The first fastening part 140 has an upper protruding jaw 142 and a lower protruding jaw 146 protruding outward of the upper flank 100, and the upper protruding jaw 142 and the lower protruding jaw 146 ) Is formed to be spaced apart from each other by a predetermined interval to form a first fastening groove 144 into which the second fastening part 150 is inserted and coupled.

On the other hand, the second fastening part 150 is provided with a second fastening groove 152 embedded in a shape corresponding to the upper protruding jaw 142 of the first fastening part 140, and the second fastening A protruding jaw 154 protruding in a shape corresponding to the first fastening groove 144 is formed under the portion 150.

At this time, the lower protruding jaw 146 is formed so that the widthwise end is positioned on the same line as the transverse end of the upper flat plate 130, and the upper protruding jaw 142 than the lower protruding jaw 146 Further protruding outward, the lower end of the protruding jaw 154 is recessed to correspond to the lower protruding jaw 146 to form a stepped portion 156. Through this, the contact area between the first fastening part 140 and the second fastening part 150 may be increased to improve the fastening force between each other.

Although the embodiments of the present invention have been described with reference to the above and the accompanying drawings, those of ordinary skill in the art to which the present invention pertains can implement the present invention in other specific forms without changing its technical spirit or essential features. You will understand that there is. Therefore, it should be understood that the above-described embodiments are illustrative in all respects and not restrictive.

100: upper flank
110: lower support
112: coupling portion
113: hanging jaw
120: diagonal support
130: upper flat plate
132-1: Triangular projection
132-2: Square projection
134: drainage groove
140: first fastening part
142: upper protrusion
144: first fastening groove
146: lower protrusion
150: second fastening part
152: Second fastening groove
154: protruding jaw
156: step
160: vertical support
200: lower flank
210: lower support
220: upper support

Claims (9)

A lower support portion 110 having a plurality of coupling portions 112 that are impregnated upward from the lower surface, and a pair of diagonal support portions 120 extending obliquely upward from both ends in the width direction of the lower support portion 110, The diagonal support portion 120 includes an upper flat plate portion 130 that interconnects the upper end, the diagonal support portion 120 is formed in a shape corresponding to each other on each side of the first to enable a plurality of heli-deck flanks to be mutually fastened The upper flank 100 is provided with a fastening portion 140 and the second fastening portion 150; And
It is composed of a composite material, the lower support portion 210 of the plate-shaped is disposed at the bottom, and the upper support portion horizontally extends above the lower support portion 210, a plurality of upper support portions slidably coupled inside the coupling portion 112 The lower flank 200 is provided with 220; includes,
The first fastening part 140 protrudes outward more than the lower protruding jaw 146 and the lower protruding jaw 146 whose widthwise ends are located on the same line as the widthwise ends of the upper flat plate 130. The upper protrusion 142 is spaced apart from each other by a predetermined interval to form a first fastening groove 144 into which the second fastening part 150 is inserted and coupled,
The second fastening part 150 is provided with a second fastening groove 152 embedded in a shape corresponding to the upper protruding jaw 142 of the first fastening part 140 at the upper part, and the second fastening part 150 is provided at the lower part. 1 is provided with a protruding jaw 154 protruding in a shape corresponding to the fastening groove 144, the lower end of the protruding jaw 154 is recessed to correspond to the lower protruding jaw 146 to form a stepped portion 156 Lightweight heli-deck flank, characterized in that. According to claim 1,
The composite material,
A lightweight heli-deck flank, characterized in that a reinforcing material woven by mixing at least one selected from glass fibers and aramid fibers with carbon fibers is impregnated in a thermosetting resin composition and then cured. According to claim 2,
The carbon fiber,
It includes at least one selected from the group consisting of polyacrylonitrile-based carbon fiber, pitch-based carbon fiber, rayon-based carbon fiber, and lignin-based carbon fiber,
Lightweight heli-deck flank, characterized in that the average single fiber diameter is 1 to 20㎛. According to claim 2,
The thermosetting resin composition,
Bisphenol A-type epoxy resin, phenol novolak-type epoxy resin, cresol novolak-type epoxy resin, tetraglycidyl diaminodiphenylmethane epoxy resin and triglycidylaminophenol epoxy resin comprising at least one selected from the group consisting of 100 parts by weight of a thermosetting resin,
A lightweight heli-deck flank comprising 1 to 10 parts by weight of an amine-based curing agent based on 100 parts by weight of the thermosetting resin. According to claim 1,
The upper flank 100,
Light weight type, which is disposed between the oblique support portions 120, and includes a plurality of vertical support portions 160 extending vertically from the upper surface of the lower support portion 110 to support the upper flat plate portion 130. Helideck Plank. delete According to claim 1,
The coupling portion 112,
Lightweight heli-deck, characterized in that it protrudes opposite to each other on the lower inner side, and the upper surface is formed to be inclined at a predetermined angle to support the upper support portion (220) of the lower flank (200). Plank. According to claim 1,
The upper flat plate 130,
A triangular triangular projection (132-1) and a rectangular quadrangular projection (132-2) protruding upwardly on the upper surface are alternately arranged to improve the frictional force of the upper surface of the upper flat plate. According to claim 1,
The upper flat plate 130,
Lightweight heli-deck flank, characterized in that it comprises a plurality of drainage grooves (134) formed through the form of narrowing the width toward the bottom.

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