KR102319396B1 - Hybrid foam filled fender and manufacturing method thereof - Google Patents

Abstract

The present invention provides is a hybrid foam filled fender and a method for manufacturing the same. The hybrid foam filled fender comprises a core; a first reinforcing layer provided at an outer side of the core; a second reinforcing layer provided at an outer side of the first reinforcing layer; and a gas layer formed between the first reinforcing layer and the second reinforcing layer. According to the present invention, there is no risk of explosion since a volume of a gas layer is less than that of an air type fender.

Description

Hybrid foam field fender and manufacturing method thereof

The present invention relates to a hybrid formfield fender installed on a quay wall of a pier to protect a ship and a pier, and a manufacturing method thereof.

In general, the fender (fender) performs an insect repellent function to mitigate the impact generated when the vessel is berthing on the quay wall (approaching). A fender is a berthing facility installed on the wall of a wharf to protect ships and piers. Fenders can be divided into rubber fenders, pneumatic fenders and foam filled fenders.

1 is a view showing a conventional pneumatic fender. 1, the conventional pneumatic fender is manufactured by combining a pair of left and right fender bodies to form an external shape of the pneumatic fender and injecting an appropriate amount of air therein. A tire 2 connected by a chain 3 is provided on the outside of the pneumatic fender 1 . The tire 2 protects the pneumatic fender 1 from impact when the ship is docked.

Pneumatic fenders can completely lose their insect repellent function if the air inside is released due to impact, and there is a risk of explosion due to explosion, but the foam field fender can perform the insect repellent function even if the outer shell is slightly damaged.

2 is a view showing a conventional formfield fender. Referring to FIG. 2, the conventional foam field fender continuously winds the foam tape 6 between both flanges 5 of the hollow shaft 4 while thermally fusion to form a columnar core 7, and the core ( 7), the reinforcing yarn 8 is wound on the outer surface, and polyurea resin is applied to form the outer skin layer 9 .

However, the conventional foam field fender reduces durability when deformation occurs such as damage to the outer skin layer or deformation such as folding and bending due to impact caused by the ship or other external force when berthing of the ship, and the recovery to the original shape is insufficient when compressed for a long time.

On the other hand, the present invention proposes a mechanism that can minimize damage to the ship side when the ship is berthing because the volume of the gas layer is smaller than that of the pneumatic fender, so there is no risk of explosion, the recovery according to the deformation is excellent, and the initial reaction force is low and soft. want to

Republic of Korea Patent Publication No. 10-2009-0078688 (published on July 20, 2009)

In order to solve the above problems, the present invention provides a hybrid formfield fender that has a small volume of gas layer compared to a pneumatic fender, so that there is no risk of explosion, and the initial reaction force is low and soft, which can minimize damage to the ship side when berthing and We would like to present its manufacturing method.

The present invention to achieve the above object, the core; a first reinforcing layer provided outside the core; a second reinforcing layer provided outside the first reinforcing layer; and a gas layer formed between the first reinforcing layer and the second reinforcing layer. It provides a hybrid formfield fender comprising a.

In addition, a peeling layer provided between the first reinforcing layer and the second reinforcing layer; further includes

Further, the gas layer is configured between the first reinforcing layer and the exfoliation layer by a first gas injection mechanism, or between the exfoliation layer and the second reinforcing layer by a second gas injection mechanism.

In addition, in the first gas injection mechanism, the gas supplied from the outside passes through the core and the first reinforcing layer and is filled between the first reinforcing layer and the exfoliation layer to constitute the gas layer.

In addition, in the second gas injection mechanism, the gas supplied from the outside passes through the exfoliation layer composed of the core, the first reinforcing layer and a ventilation structure, and fills between the exfoliation layer and the second reinforcing layer to form the gas layer. do.

In addition, the first reinforcing layer is formed by applying an impregnating material while winding the reinforcing yarn around the core, and the second reinforcing layer is formed by applying an impregnating material while winding the reinforcing yarn to the release layer.

In addition, the outer skin layer provided on the outside of the second reinforcing layer; further comprising, a vent hole is provided in the first reinforcing layer, a gas injection member for supplying gas to the core is provided, and the gas injection member has one end connected to the core and the other end capable of gas injection so as to be exposed to the outside of the outer skin layer.

In addition, the gas injection member is a valve.

In addition, the core is configured by winding a foam material on the outside of the central pillar, and the central pillar includes flanges at both ends.

In addition, the foam material is a foam tape.

In addition, the gas injection member is provided in a non-contact portion to which an external impact is not applied.

In addition, the non-contact portion is a flange or a portion of the outer skin layer near the flange.

In addition, the release layer is configured by wrapping the first reinforcing layer with a wrap as a release material.

The present invention, forming the core of the foam structure on the outside of the central pillar portion; forming a first reinforcing layer on the outside of the core; forming a second reinforcing layer outside the first reinforcing layer; forming an outer skin layer on the outside of the second reinforcing layer; and forming a gas layer between the first reinforcing layer and the second reinforcing layer; It provides a method of manufacturing a hybrid formfield fender comprising a.

In addition, in the step of forming the core, the core is formed by winding a foam material around a central pillar having flanges at both ends, and in the step of forming the first reinforcing layer, the first reinforcing layer is attached to the core. Formed by applying an impregnating material while winding the reinforcing yarn, in the step of forming the second reinforcing layer, the second reinforcing layer is formed by applying an impregnating material while winding the reinforcing yarn from the outside of the first reinforcing layer, and forming the outer skin layer In the forming step, the outer skin layer is formed by applying an outer skin material to the second reinforcing layer.

In addition, after the step of forming the first reinforcing layer, forming a release layer on the outside of the first reinforcing layer; It further includes, wherein the release layer is located between the first reinforcing layer and the second reinforcing layer.

In addition, in the step of forming the release layer, the release layer is formed by winding a release material on the first reinforcing layer.

In addition, after forming the first reinforcing layer, forming a vent hole in the first reinforcing layer so that the gas supplied from the outside passes through the first reinforcing layer through the core; further includes.

In addition, after the step of forming the outer skin layer, forming a gas layer between the first reinforcing layer and the release layer or between the release layer and the second reinforcing layer; further includes.

In addition, in the step of forming the gas layer between the first reinforcing layer and the release layer, the gas layer is supplied through a gas injection member having one end connected to the core and the other end exposed to the outside of the outer skin layer. Gas passes through the vent holes of the core and the first reinforcing layer and is filled between the first reinforcing layer and the release layer.

In addition, in the step of forming the gas layer between the release layer and the second reinforcing layer, the gas layer is supplied through a gas injection member having one end connected to the core and the other end exposed to the outside of the outer skin layer. A gas passes through the core and the ventilating hole of the first reinforcing layer and the exfoliation layer having a ventilation structure, and is filled between the exfoliation layer and the second reinforcing layer.

In the present invention, there is no risk of explosion because the volume of the gas layer is smaller than that of the pneumatic fender.

In addition, the present invention can minimize the damage to the vessel side when the vessel is berthing because the initial reaction force is low and soft.

1 is a view showing a conventional pneumatic fender.
2 is a view showing a conventional formfield fender.
3 is a view showing a hybrid formfield fender according to a preferred embodiment of the present invention.
4 is a view showing the structure of a flange according to a preferred embodiment of the present invention.
5 is a view illustrating a method for manufacturing a core, a first reinforcing layer, and a release layer according to a preferred embodiment of the present invention.
6 is a view showing a method of manufacturing a second reinforcing layer and an outer skin layer according to a preferred embodiment of the present invention.
FIG. 7 is a cross-sectional view of part B of FIG. 6 , and is a view illustrating a process of forming a gas layer between the first reinforcing layer and the exfoliation layer by the first gas injection mechanism.
FIG. 8 is a cross-sectional view of part B of FIG. 6 , and is a view illustrating a process of forming a gas layer between a peeling layer and a second reinforcing layer by a second gas injection mechanism.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. First of all, it should be noted that in adding reference numerals to the components of each drawing, the same components are given the same reference numerals as much as possible even if they are indicated on different drawings. In addition, in describing the present invention, if it is determined that a detailed description of a related known configuration or function may obscure the gist of the present invention, the detailed description thereof will be omitted. In addition, preferred embodiments of the present invention will be described below, but the technical spirit of the present invention is not limited thereto and may be variously implemented by those skilled in the art without being limited thereto.

The conventional foam field fender has a problem in that it is insufficient to recover to its original shape when deformation occurs such as damage to the outer skin layer or deformation such as folding and bending due to impact caused by the ship or other external force when the ship is docked. On the other hand, the present invention proposes a mechanism that can minimize damage to the ship side when the ship is berthing because the volume of the gas layer is smaller than that of the pneumatic fender, so there is no risk of explosion, the recovery according to the deformation is excellent, and the initial reaction force is low and soft. want to

A hybrid formfield fender according to the present invention will be described.

Figure 3 is a view showing a hybrid formfield fender according to a preferred embodiment of the present invention, Figure 4 is a view showing the structure of a flange according to a preferred embodiment of the present invention.

As shown in FIG. 3 , in the present invention, the central pillar 21 , the core 22 provided outside the central pillar 21 , the first reinforcing layer 23 provided outside the core 22 , and the first reinforcing layer 23 ) a release layer 25 provided on the outside, a second reinforcing layer 26 provided on the outside of the release layer 25 , a base layer 24 provided between the first reinforcing layer 23 and the second reinforcing layer 26 , and and an outer skin layer 27 provided outside the second reinforcing layer 26 .

Specifically, the core 22 may be formed of a foam structure surrounding the central pillar 21 . As an example, the core 22 may be formed by continuously and repeatedly winding a foamed material such as a foamed tape 22a around the central pillar 21 . The central pillar 21 may be provided with flanges 21a at both ends.

As an example, the flange 21a is coupled to both ends of the central pillar 21 such as a pipe, and a ring 21b of a swivel structure that is rotatable to the outside is formed to protrude. The ring 21b may be connected to a connecting member C such as a chain or a rope (see FIG. 4 ).

As an example, the foam tape 22a cuts the foam sheet to a predetermined width selected between 150 mm and 250 mm, and then connects it in a long line by an adhesive or heat-sealing method.

The material of the foam tape 22a may be any material as long as it is made of a foamed plastic material having closed cells. For example, the foam tape 22a may be any one selected from polyurethane, PVC, polystyrene, ABS, polyethylene, and EVA resin foam, but it is best to use polyethylene foam.

The core 22 is formed by continuously winding the foam tape 22a between the flanges 21a provided at both ends of the central pillar 21 while thermally fusion. Specifically, start winding the foam tape 22a from the flange 21a on one side of the central pillar 21 . When the foam tape (22a) is wound on the central pillar part (21), it is wound at an angle at an angle.

When the foam tape 22a, which starts winding from one flange 21a of the central pillar 21, reaches the other flange 21a, twist the direction of the foam tape 22a and wind it obliquely in the opposite direction. By continuously repeating this process, the core 22 can be formed.

As described above, the core 22 formed by winding the foam tape 22a around the central pillar 21 can be ventilated when gas is forcibly injected. If the core 22 is integrally formed or if it is difficult for gas to pass through the core 22, the gas injected through the gas injection member 28 to be described later can pass through the core 22. It may also be possible to form a gas passage in the core 22 .

The first reinforcing layer 23 is formed by winding the reinforcing yarn L on the outside of the core 22 . For example, the reinforcing yarn L may be a nylon filament or the like.

While winding the reinforcing yarn L on the entire outer side of the core 22, the impregnating material S is applied to the reinforcing yarn L in the same manner as by spraying. For example, the impregnating material S may be polyurea or the like. By impregnating the reinforcing yarn (L) with the impregnating material (S), the first reinforcing layer 23 having a structure in which ventilation is impossible is formed. Meanwhile, vent holes H may be formed in the first reinforcing layer 23 so that the gas for forming the gas layer 24 may pass through the gas-impermeable first reinforcing layer 23 .

After the formation of the first reinforcing layer 23 , the release layer 25 is formed outside the first reinforcing layer 23 . When gas is forcibly injected into the core 22, the gas inside the core 22 is supplied between the first reinforcing layer 23 and the peeling layer 25 through the vent hole H of the first reinforcing layer 23 1 When a gas layer is formed between the reinforcing layer 23 and the exfoliation layer 25 or gas is forcibly injected into the core 22 , the gas inside the core 22 is formed through the vent holes (H) of the first reinforcing layer 23 . ) and the release layer 25 and supplied between the release layer 25 and the second reinforcing layer 26 having a ventilation structure to form a gas layer 24 between the release layer 25 and the second reinforcing layer 26 . can do.

The release layer 25 may be formed on the outside of the first reinforcing layer 23 using a film made of a material such as polyethylene (PE) or polyvinyl chloride (PVC). In one embodiment, the release layer 25 may be formed by wrapping a release material such as a synthetic resin film such as PE or PVC and wrapping it. However, the release layer 25 is used to prevent the first reinforcing layer 23 and the second reinforcing layer 26 from adhering to each other, and the material of the release layer 25 is not limited to the material or structure presented above.

After the release layer 25 is formed, a second reinforcing layer 26 is formed outside the release layer 25 . The second reinforcing layer 26 may be formed in the same manner as the first reinforcing layer 23 . Specifically, the second reinforcing layer 26 may be formed by winding a reinforcing yarn L, such as a nylon filament, on the outside of the release layer 25 .

In one embodiment, while winding the reinforcing yarn (L) on the outside of the release layer 25, the impregnating material (S) is applied to the reinforcing yarn (L) in the same manner as by spraying. For example, the impregnating material S may be polyurea or the like. As the reinforcing yarn L is impregnated with the impregnating material S, the second reinforcing layer 26 that is not breathable may be formed. The first reinforcing layer 23 and the second reinforcing layer 26 are skin layers having the same structure.

The reinforcing yarn L and the impregnating material S for forming the second reinforcing layer 26 are the same as the reinforcing yarn L and the impregnating material S for forming the first reinforcing layer 23 .

The first reinforcing layer 23 and the second reinforcing layer 26 are not adhered during the manufacturing process by the peeling layer 25 provided between the first reinforcing layer 23 and the second reinforcing layer 26 .

The outer skin layer 27 is a layer provided on the outside of the second reinforcing layer 26 and is formed of a non-ventilable layer. For example, the outer skin layer 27 may be formed using polyurethane (polyurethane), which is an outer skin forming material, for the second reinforcing layer 26 . In another embodiment, the outer skin layer 27 may be formed of an outer skin forming material such as an elastomer.

FIG. 7 is a cross-sectional view of part B of FIG. 6, illustrating a process of forming a gas layer between the first reinforcing layer and the exfoliation layer by the first gas injection mechanism, and FIG. 8 is a cross-sectional view of part B of FIG. 6, the second It is a view showing a process of forming a gas layer between the release layer and the second reinforcing layer by a gas injection mechanism.

The gas layer 24 is formed between the first reinforcing layer 23 and the exfoliation layer 25 by a first gas injection mechanism or between the exfoliation layer 25 and the second reinforcing layer 26 by a second gas injection mechanism. can be formed in

As shown in FIG. 7 , the first gas injection mechanism forms a gas layer 24 between the first reinforcing layer 23 and the exfoliation layer 25 . After forming the skin layer 27 , the core layer 27 is outside the core. (22) Forcibly supplying gas to the inside. In this case, the gas may be various gases such as air and nitrogen. The gas forcibly supplied into the core 22 forms the gas layer 24 while filling the space between the first reinforcing layer 23 and the exfoliation layer 25 through the vent holes H of the first reinforcing layer 23 .

Specifically, the second reinforcing layer 26 expands as the exfoliation layer 25 is pushed toward the second reinforcing layer 26 due to the gas pressure injected between the first reinforcing layer 23 and the exfoliation layer 25 . As a result, a space for injecting gas is naturally formed between the first reinforcing layer 23 and the exfoliation layer 25 . As the gas is filled in the gas injection space, the gas layer 24 capable of preventing external impact may be formed.

As shown in FIG. 8 , the second gas injection mechanism forms a gas layer 24 between the exfoliation layer 25 and the second reinforcing layer 26 , after the skin layer 27 is formed and then the core is formed outside the skin layer 27 . (22) Forcibly supplying gas to the inside. The gas forcibly supplied to the inside of the core 22 passes through the vent holes H of the first reinforcing layer 23 and the exfoliation layer 25 and fills the gap between the exfoliation layer 25 and the second reinforcing layer 26 to form a gas layer ( 24) is formed. As an example, for smooth ventilation of the release layer 25 , vent holes such as the vent holes H of the first reinforcing layer 23 may be formed in the release layer 25 .

Meanwhile, the gas injection of the gas layer 24 may be performed by the gas injection member 28 . For example, the gas injection member 28 may be a valve.

As an example, the gas injection member 28 is configured such that one end is connected to the core 22 and the other end is exposed to the outside of the outer skin layer 27 to allow gas injection.

The gas injection member 28 does not matter at any position of the outer skin layer 27, but it is preferable to be provided in a non-contact portion where the impact is not applied when the ship is docked. For example, the non-contact portion may be a flange 21a provided at both ends of the central pillar 21 or a portion of the outer skin layer 27 near the flange 21a.

The following describes a manufacturing method of the hybrid formfield fender of the present invention.

(1) forming a core

5 is a view showing a method for manufacturing a core, a first reinforcing layer, and a release layer according to a preferred embodiment of the present invention.

As shown in FIG. 5 , the core 22 of the foam structure is formed on the outer side of the central column 21 having flanges 21a formed at both ends. As an example, the core 22 may be formed by continuously and repeatedly winding the foam tape 22a around the central pillar 21 .

Specifically, when winding the core 22 from the outside of the central pillar 21, a fully automatic control system W such as a filament winding machine may be used. The automatic control system W may form the core 22 while continuously and repeatedly winding the foam tape 22a along the axial direction of the central pillar 21 around the central pillar 21 .

The material of the foam tape 22a may be any material as long as it is made of a foamed plastic material having closed cells. For example, the foam tape 22a may be any one selected from polyurethane, PVC, polystyrene, ABS, polyethylene, and EVA resin foam, but it is best to use polyethylene foam.

For example, the core 22 may have a structure in which a diameter becomes narrower toward the flange 21a provided at both ends of the central pillar part 21 .

(2) forming a first reinforcing layer

5 , the first reinforcing layer 23 is formed on the outside of the core 22 . The first reinforcing layer 23 may be formed by winding a plurality of reinforcing yarns L on the outside of the core 22 . For example, the reinforcing yarn L may be a nylon filament or the like.

The first reinforcing layer 23 is formed by winding a plurality of reinforcing yarns L on the outside of the core 22 and applying an impregnating material S to the reinforcing yarns L by a spray method. As the reinforcing yarn L is impregnated with the impregnating material S, the first reinforcing layer 23 is formed. The impregnating material S may be polyurea or the like.

When winding the reinforcing yarn L on the outside of the core 22, a fully automatic control system W such as a filament winding machine may be used. The fully automatic control system W may form the solid reinforcement layer 23 by winding the reinforcing yarn L to cross each other in the axial direction and the circumferential direction of the core 22 .

The reinforcing yarn L wound on the outside of the core 22 is supplied in a taut and tense state by forming a certain tension on each reinforcing yarn by the fully automatic control system W to be wound firmly on the outside of the core 22. can

(3) forming vent holes

5, after the step of forming the first reinforcing layer 23, the first reinforcing layer 23 so that the gas for forming the gas layer 24 can pass through the gas-impermeable first reinforcing layer 23 A vent hole (H) may be formed in the .

The first reinforcing layer 23 is formed by applying an impregnating material (S) to the reinforcing yarn (L) and is a layer that is not ventilated, but implements a ventilation structure communicating with the core 22 due to the formation of the vent hole (H). can

When the gas is forcibly supplied into the core 22 , the gas supplied into the core 22 may move toward the release layer 25 through the vent hole H of the first reinforcing layer 23 . A plurality of vent holes H may be perforated in the first reinforcing layer 23 .

(4) forming a release layer

5 , the release layer 25 is formed on the outside of the first reinforcing layer 23 . The release layer 25 is positioned between the first reinforcing layer 23 and the second reinforcing layer 26 to prevent the first reinforcing layer 23 and the second reinforcing layer 26 from being adhered to each other.

For example, the release layer 25 may be formed by winding the first reinforcing layer 23 with a release material such as wrap.

In a wrapping process of winding the outer side of the first reinforcing layer 23 with a wrap, there may be various methods such as using a filament winding machine or a manual operation.

A wrap wound on the outside of the first reinforcing layer 23 serves to separate the first reinforcing layer 23 and the second reinforcing layer 26 . A wrap wound on the outside of the first reinforcing layer 23 is a mechanism for avoiding the adhesion force between the first reinforcing layer 23 and the second reinforcing layer 26 to each other.

When the gas layer 24 is formed between the first reinforcing layer 23 and the exfoliation layer 25 by the first gas injection mechanism, the second reinforcing layer 26 is formed after the step of forming the exfoliation layer 25 . You just have to go through the steps right away.

If the gas layer 24 is formed between the release layer 25 and the second reinforcing layer 26 by the second gas injection mechanism, the release layer is used for smooth ventilation after the step of forming the release layer 25 . The step of forming the vent hole (H) in (25) may be further performed.

(5) forming a second reinforcing layer

6 is a view showing a method for manufacturing a second reinforcing layer and an outer skin layer according to a preferred embodiment of the present invention.

As shown in FIG. 6 , a second reinforcing layer 26 is formed outside the release layer 25 . As an example, the second reinforcing layer 26 may be formed as one layer or to form a plurality of layers. The second reinforcing layer 26 may be formed by the same manufacturing method as the first reinforcing layer 23 .

As an example, the second reinforcing layer 26 may be formed by applying the impregnating material S to the reinforcing yarn L while winding the reinforcing yarn L on the outside of the release layer 25 . For example, the reinforcing yarn L wound on the outside of the release layer 25 may be a nylon filament or the like.

The second reinforcing layer 26 is formed by winding a plurality of reinforcing yarns L on the outside of the release layer 25 and applying an impregnating material S to the reinforcing yarns L by a spray method. The second reinforcing layer 26 may be formed while the reinforcing yarn L is impregnated with the impregnating material S. The impregnating material S may be polyurea or the like.

When winding the reinforcing yarn L on the outside of the release layer 25, a fully automatic control system W such as a filament winding machine may be used. The fully automatic control system W may form the strong second reinforcing layer 26 by winding the reinforcing yarn L to cross each other in the axial direction and the circumferential direction of the core 22 .

The reinforcing yarn L wound on the outer side of the release layer 25 may be supplied in a taut state by the fully automatic control system W to be tightly wound on the outer side of the release layer 25 .

The second reinforcing layer 26 is composed of a non-breathable layer. Adhesion of the first reinforcing layer 23 and the second reinforcing layer 26 may be prevented by the peeling layer 25 positioned between the first reinforcing layer 23 and the second reinforcing layer 26 .

(6) forming an outer skin layer

As shown in FIG. 6 , the outer skin layer 27 is formed on the outside of the second reinforcing layer 26 . For example, the outer skin layer 27 may be formed using an elastomer or polyurethane, which is an outer skin forming material, for the second reinforcing layer 26 . The second reinforcing layer 26 constitutes a non-breathable layer. The outer skin layer 27 may be formed by various methods such as spraying and coating.

(7) forming a gas layer

The base layer 24 may be formed between the first reinforcing layer 23 and the exfoliation layer 25 , but may be formed between the exfoliation layer 25 and the second reinforcing layer 26 .

FIG. 7 is a cross-sectional view of part B of FIG. 6 , and is a view showing a process of forming a gas layer between the first reinforcing layer and the exfoliation layer by the first gas injection mechanism.

7 , the gas layer 24 may be formed between the first reinforcing layer 23 and the exfoliation layer 25 by the first gas injection mechanism.

The gas is forcibly supplied into the core 22 through the gas injection member 28 exposed on the outside of the outer skin layer 27 by the first gas injection mechanism. The gas injection member 28 may be a valve.

The gas forcibly supplied through the gas injection member 28 moves to the first reinforcing layer 23 through the inside of the ventilable core 22 . The gas A that has moved to the first reinforcing layer 23 moves to the release layer 25 through the vent holes H of the first reinforcing layer 23 so that the gas layer 24 is separated from the first reinforcing layer 23 . The gas layer 24 may be formed while filling between the layers 25 . Meanwhile, the release layer 25 is pushed toward the second reinforcing layer 26 by the gas pressure moving in the direction of the exfoliation layer 25 through the vent hole H, and the second reinforcing layer 26 expands at the same time. As the second reinforcing layer 26 expands, a gas injection space is naturally formed between the first reinforcing layer 23 and the exfoliation layer 25 . As the gas A is filled into the gas injection space, the gas layer 24 may be formed between the first reinforcing layer 23 and the exfoliation layer 25 .

FIG. 8 is a cross-sectional view of part B of FIG. 6 , and is a view illustrating a process of forming a gas layer between a peeling layer and a second reinforcing layer by a second gas injection mechanism.

As shown in FIG. 8 , the gas layer 24 may be formed between the exfoliation layer 25 and the second reinforcing layer by the second gas injection mechanism.

The gas is forcibly supplied into the core 22 through the gas injection member 28 exposed on the outside of the outer skin layer 27 by the second gas injection mechanism. The gas forcibly supplied through the gas injection member 28 moves to the first reinforcing layer 23 through the inside of the ventilable core 22 . The gas A moving to the first reinforcing layer 23 passes through the vent H of the first reinforcing layer 23 and the exfoliation layer 25 and fills the gap between the exfoliation layer 25 and the second reinforcing layer 26 . It is possible to form the gas layer 24 while forming.

The gas layer 24 formed between the first reinforcing layer 23 and the peeling layer 25 or between the peeling layer 25 and the second reinforcing layer 26 has a larger volume of the gas layer 24 compared to the conventional pneumatic fender. Because it is small, there is no risk of explosion, and the initial reaction force is low and soft, damage to the vessel side can be minimized when the vessel is berthing.

On the other hand, the gas injection member 28 is preferably located in a non-contact portion that does not receive an external shock when the vessel is docked. Specifically, the gas injection member 28 is a non-contact portion to which an external shock is not applied when the vessel is docked, such as the portion of the outer skin layer 27 near the flange 21a or the flange 21a provided at both ends of the central column 21 . It is preferable to be located in

As an example, the flange 21a may be coupled to both ends of the central pillar 21 after all processes are completed.

The above description is merely illustrative of the technical idea of the present invention, and various modifications, changes, and substitutions are possible within the range that does not depart from the essential characteristics of the present invention by those of ordinary skill in the art to which the present invention pertains. will be. Accordingly, the embodiments disclosed in the present invention and the accompanying drawings are for explaining, not limiting, the technical spirit of the present invention, and the scope of the technical spirit of the present invention is not limited by these embodiments and the accompanying drawings. . The protection scope of the present invention should be construed by the following claims, and all technical ideas within the equivalent range should be construed as being included in the scope of the present invention.

21: central pillar
21a: flange
21b: ring
22: core
22a: foam tape
23: first reinforcing layer
24: gas layer
25: release layer
26: second reinforcing layer
27: outer skin layer
28: gas injection member
A: gas
C: chain
H: vent hole
L: reinforcement yarn
S: impregnating material
W: Fully automatic control system

Claims (21)

core;
a first reinforcing layer provided outside the core;
a second reinforcing layer provided outside the first reinforcing layer;
a peeling layer provided between the first reinforcing layer and the second reinforcing layer; and
a gas layer configured between the first reinforcing layer and the exfoliation layer by a first gas injection mechanism or between the exfoliation layer and the second reinforcing layer by a second gas injection mechanism;
including,
A hybrid formfield fender, characterized in that a ventilation hole is provided in the first reinforcing layer. delete delete The method of claim 1,
The first gas injection mechanism comprises:
The hybrid formfield fender, characterized in that the gas supplied from the outside passes through the core and the first reinforcing layer and fills between the first reinforcing layer and the release layer to constitute the gas layer. The method of claim 1,
The second gas injection mechanism comprises:
The hybrid foam field fender, characterized in that the gas supplied from the outside passes through the release layer composed of the core, the first reinforcing layer, and the ventilation structure and is filled between the release layer and the second reinforcing layer to form the gas layer. The method of claim 1,
The first reinforcing layer is formed by applying an impregnating material while winding the reinforcing yarn to the core, and the second reinforcing layer is formed by applying an impregnating material while winding the reinforcing yarn to the release layer. fender. The method of claim 1,
an outer skin layer provided outside the second reinforcing layer;
further comprising,
A gas injection member for supplying gas to the core is provided, and one end of the gas injection member is connected to the core and the other end is exposed to the outside of the outer skin layer to allow gas injection. . 8. The method of claim 7,
The gas injection member,
Hybrid formfield fender, characterized in that it is a valve. 8. The method of claim 7,
The core is formed by winding a foam material on the outside of the central pillar, and the central pillar is a hybrid foam field fender, characterized in that it has flanges at both ends. 10. The method of claim 9,
The foam material is
Hybrid foam field fender, characterized in that it is a foam tape. 8. The method of claim 7,
The gas injection member,
A hybrid formfield fender, characterized in that it is provided in a non-contact area to which external impact is not applied. 12. The method of claim 11,
The non-contact area is
A hybrid formfield fender, characterized in that it is a part of the outer skin layer near the flange or flange. The method of claim 1,
The release layer is
A hybrid foam field fender, characterized in that the first reinforcing layer is wrapped with a wrap as a release material. Forming the core of the foam structure on the outside of the central pillar;
forming a first reinforcing layer on the outside of the core;
after forming the first reinforcing layer, forming a vent hole in the first reinforcing layer so that the gas supplied from the outside passes through the first reinforcing layer through the core;
after forming the first reinforcing layer, forming a release layer outside the first reinforcing layer; and
forming a second reinforcing layer outside the release layer;
A method of manufacturing a hybrid formfield fender comprising a. 15. The method of claim 14,
In the step of forming the core, the core is formed by winding a foam material on a central pillar having flanges at both ends,
In the step of forming the first reinforcing layer, the first reinforcing layer is formed by applying an impregnating material while winding reinforcing yarn around the core,
In the forming of the second reinforcing layer, the second reinforcing layer is formed by applying an impregnating material while winding reinforcing yarn outside the first reinforcing layer. 15. The method of claim 14,
The release layer is
Located between the first reinforcing layer and the second reinforcing layer,
after forming the second reinforcing layer, forming an outer skin layer on the outside of the second reinforcing layer;
further comprising,
In the forming of the outer skin layer, the outer skin layer is formed by applying an outer skin material to the second reinforcing layer. 17. The method of claim 16,
In the step of forming the release layer, the release layer is formed by winding a release material on the first reinforcing layer. delete 17. The method of claim 16,
After forming the outer skin layer,
forming a gas layer between the first reinforcing layer and the release layer or between the release layer and the second reinforcing layer;
A method of manufacturing a hybrid formfield fender further comprising a. 20. The method of claim 19,
In the step of forming a gas layer between the first reinforcing layer and the release layer,
The gas layer is
One end is connected to the core and the other end is a gas supplied through a gas injection member exposed to the outside of the outer skin layer through the vent holes of the core and the first reinforcing layer between the first reinforcing layer and the peeling layer A method of manufacturing a hybrid formfield fender, characterized in that it is filled. 20. The method of claim 19,
In the step of forming a gas layer between the release layer and the second reinforcing layer,
The gas layer is
One end is connected to the core and the other end is the gas supplied through the gas injection member exposed to the outside of the outer skin layer passes through the release layer composed of the vent structure and the vent structure of the core and the first reinforcing layer, the release layer and the method of manufacturing a hybrid formfield fender, characterized in that it is filled and formed between the second reinforcing layer.

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