Fender structures, water body structures, replacement methods and maintenance methods

Abstract

The present invention provides a method for replacing and maintaining fenders, water structures, and fender materials installed on fenders, which facilitate work at the installation site of the fender structure. [Solution] A fender structure 1 for docking ships, comprising a rubber fender 10 and a corrosion-resistant metal part 20 to which the rubber fender 10 is connected, wherein the corrosion-resistant metal part 20 includes a first plate 21 and a second plate 22, which include a portion 20A that contacts the rubber fender 10, and the first plate 21, the second plate 22, and the rubber fender 10 are arranged in the order of rubber fender 10, first plate 21, and second plate 22, and the first plate 21 overlaps the second plate 22.

Description

Technical Field

[0001] The present disclosure relates to fender structures, water area structures, replacement methods, and maintenance methods.

Background Art

[0002] Conventionally, a fender structure may be provided on a water area structure. Patent Document 1 discloses a fender material including a buffer portion for alleviating the impact during ship-side contact and a quay wall fixing portion for attaching this buffer portion to a quay wall or the like, and this quay wall fixing portion includes a fixing member having higher rust prevention properties than iron materials. Patent Document 2 discloses a fender structure having a wear-resistant steel material connected to a water area steel structure and a rubber fender material connected to this wear-resistant steel material, and this wear-resistant steel material is made of stainless steel.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Patent Document 2

Summary of the Invention

Problems to be Solved by the Invention

[0004] However, in Patent Documents 1 and 2, there was room for improvement in terms of facilitating the work at the installation location of the fender structure.

[0005] The present disclosure has been made in view of the above circumstances, and an object thereof is to provide a fender structure, a water area structure, a method for replacing a fender material provided on the fender structure, and a maintenance method that can facilitate the work at the installation location of the fender structure.

Means for Solving the Problems

[0006] To solve the aforementioned problems, this disclosure proposes the following means. A fender structure according to one aspect of the present disclosure is a fender structure for a ship to dock, comprising a rubber fender and a corrosion-resistant metal part to which the rubber fender is connected, wherein the corrosion-resistant metal part includes a first plate and a second plate, which include a portion that contacts the rubber fender, and the first plate, the second plate, and the rubber fender are arranged in the order of the rubber fender, the first plate, and the second plate, and the first plate overlaps the second plate. [Effects of the Invention]

[0007] According to this disclosure, it is possible to provide a fender structure, a water body structure, a method for replacing fender materials provided on a fender structure, and a maintenance method that facilitates work at the installation site of the fender structure. [Brief explanation of the drawing]

[0008] [Figure 1] This is a plan view of a fender structure according to an embodiment. [Figure 2] This is a front view of a fender structure according to an embodiment. [Figure 3] This is a schematic diagram showing the removal step according to the embodiment. [Figure 4] This is a schematic diagram illustrating the replacement steps according to the embodiment. [Figure 5] This is a modified version in which the fastening part further includes a washer. [Modes for carrying out the invention]

[0009] The following describes, with reference to the drawings, a fender structure according to one embodiment of the present disclosure, and a method for replacing and maintaining the rubber fender material of the fender structure. First, the fender structure according to this embodiment will be described. As will be described later, the fender structure is attached to a water structure, etc. As a result, when a ship docks with a water structure, etc., the ship comes into contact with the fender structure. In this way, the fender structure prevents direct contact between the ship and the water structure, etc. to which the fender structure is attached. In this way, the fender structure prevents damage to the ship and the water structure, etc. to which the fender structure is attached. The target of the fender structure is, for example, a quay. Alternatively, the target of the fender structure may be mooring facilities such as piers, monopiles driven into the seabed, or jacket structures installed in the ocean. Hereinafter, in this embodiment, the target of the fender structure as described above will be referred to as a water body structure.

[0010] (Overview of fender structures) Figure 1 is a plan view of the fender structure 1 according to an embodiment. In the following description of this embodiment, when indicating directions, as shown in Figure 1, the thickness direction of the corrosion-resistant metal part 20 described later will be referred to as the first direction D1, the direction perpendicular to the first direction D1 and the width direction of the corrosion-resistant metal part 20 shown in Figure 1 will be referred to as the second direction D2, and the direction perpendicular to both the first direction D1 and the second direction D2 will be referred to as the third direction D3. As shown in Figure 1, the fender structure 1 is attached to the water structure 2. The fender structure 1 includes a rubber fender material 10, a corrosion-resistant metal part 20, a third plate 30, and a fastening part 40.

[0011] (Rubber fenders) The rubber fender 10 shown in Figure 1 is the part that the ship makes contact with. The rubber fender 10 protects the ship by absorbing the impact when the ship docks with the fender structure 1. As shown in Figure 1, the rubber fender 10 is attached to the corrosion-resistant metal part 20 by fastening parts 40. As shown in Figure 1, the rubber fender 10 includes a mounting portion 11 and a cushioning portion 12. In this embodiment, the mounting portion 11 and the cushioning portion 12 are integrally formed from, for example, rubber.

[0012] (Mounting part) As shown in Figure 1, the mounting portion 11 is the part that is attached to the corrosion-resistant metal portion 20. In other words, the mounting portion 11 is the part of the rubber fender 10 that comes into contact with the corrosion-resistant metal portion 20. As shown in Figure 1, the mounting portion 11 is formed in a plate shape from rubber. The mounting portion 11 is attached to the first plate 21 (described later) of the corrosion-resistant metal portion 20 by the fastening portion 40. For this reason, as shown in Figure 1, the mounting portion 11 has through holes 11a through which the fastening portion 40 is inserted. Multiple through holes 11a are provided at intervals along the longitudinal direction (third direction D3) of the rubber fender 10, for example.

[0013] In this embodiment, a steel plate (not shown) is embedded inside the mounting portion 11. For example, rolled steel plate such as SS400 is used for the steel plate. The steel plate has the function of reinforcing the mounting portion 11, thereby ensuring that the rubber fender 10 and the corrosion-resistant metal portion 20 are attached more securely. The steel plate (not shown) is entirely covered by the rubber forming the mounting portion 11. The steel plate is installed so that it is completely invisible from the outside even when the rubber fender 10 is not attached to the corrosion-resistant metal portion 20. Specifically, for example, the steel plate is covered with rubber even in the portion that comes into contact with the corrosion-resistant metal portion 20. For example, the steel plate is also covered with rubber in the portion that faces the through hole 11a. This prevents galvanic corrosion and crevice corrosion from occurring between the steel plate and other members constituting the fender structure 1. However, the steel plate is not required.

[0014] (Buffer part) The buffer portion 12 is the part of the rubber fender 10 that comes into contact with the ship. The buffer portion 12 is formed, for example, in a V shape that protrudes in the first direction D1 in a plan view as shown in FIG. 1. By this, for example, at the tip of the V shape, a planar portion 12a where the ship can come into contact is formed. Alternatively, the buffer portion 12 may have any other shape as long as it can form a portion corresponding to the planar portion 12a where the ship can come into contact. The buffer portion 12 is deformable when the ship comes into contact. By this, the buffer portion 12 absorbs the impact when the ship comes into contact with the rubber fender 10. Thereby, it is possible to suppress damage to the ship. The rubber fender 10 as described above has two mounting portions 11 separated in the second direction D2. These two mounting portions 11 are connected by the buffer portion 12. For example, the rubber fender 10 is provided with an internal space extending over the entire length in the third direction D3. This internal space opens on both sides in the third direction D3.

[0015] (Corrosion-resistant metal part) The corrosion-resistant metal part 20 is the part to which the rubber fender 10 is connected as shown in FIG. 1. The corrosion-resistant metal part 20 and the rubber fender 10 are connected by a fastening portion 40. For the corrosion-resistant metal part 20, for example, Ni-based alloys, stainless steels, corrosion-protected carbon steels (for example, carbon steels with anti-corrosion coating, carbon steels lined with stainless steel, stainless steel clad steels), titanium, etc. are used. Thereby, a corrosion-resistant metal part 20 with excellent corrosion resistance can be obtained.

[0016] The Ni-based alloy is, for example, ALLOY-C276. The Ni-based alloy is an alloy mainly composed of nickel. Whether the corrosion-resistant metal part 20 is a Ni-based alloy can be confirmed, for example, by whether the nickel content is 50% or more. Also, regardless of such a method, if the steel plate used for the corrosion-resistant metal part 20 is specified by a trade name or the like, and the nickel content in the specifications of this steel plate is 50% or more, the corrosion-resistant metal part 20 may be regarded as a Ni-based alloy. The stainless steel may be, for example, a stainless steel with higher corrosion resistance than carbon steel and a Vickers hardness of 170 or higher. Furthermore, known methods can be suitably used for corrosion-preventive coating of carbon steel. Also, known types of titanium can be suitably used.

[0017] As shown in Figure 1, the corrosion-resistant metal part 20 is composed of multiple plates. In this embodiment, the corrosion-resistant metal part 20 includes two plates. That is, as shown in Figure 1, the corrosion-resistant metal part 20 includes a first plate 21 and a second plate 22. As shown in Figure 1, the first plate 21, the second plate 22, and the rubber fender 10 are arranged in the order of rubber fender 10, first plate 21, and second plate 22, with the first plate 21 overlapping the second plate 22. Therefore, as shown in Figure 1, the first plate 21 includes a portion 20A that contacts the rubber fender 10.

[0018] The first plate 21 and the second plate 22 are made of corrosion-resistant metals. For example, both the first plate 21 and the second plate 22 may be made of a nickel-based alloy, stainless steel, corrosion-resistant coated carbon steel, titanium, etc. That is, the first plate 21 may be made of a nickel-based alloy, and the second plate 22 may be made of a nickel-based alloy. Alternatively, the first plate 21 may be made of stainless steel, and the second plate 22 may be made of stainless steel. Alternatively, the first plate 21 may be made of corrosion-resistant coated carbon steel, and the second plate 22 may be made of corrosion-resistant coated carbon steel. Alternatively, the first plate 21 may be made of titanium, and the second plate 22 may be made of titanium. The first plate 21 and the second plate 22 may be made of corrosion-resistant metals, and the types of corrosion-resistant metals may be the same or different.

[0019] The first plate 21 and the second plate 22 do not necessarily have to be made of a nickel-based alloy. This allows for, for example, ensuring corrosion resistance while keeping the cost of the first plate 21 and the second plate 22 down to some extent.

[0020] (Plate 1) As shown in Figure 1, the first plate 21 is one of several plates that make up the corrosion-resistant metal part 20. As described above, the first plate 21 includes a portion 20A that comes into contact with the rubber fender 10. In other words, the first plate 21 is the plate to which the rubber fender 10 is attached. When the rubber fender 10 is replaced in the fender structure 1, the first plate 21 is removed from the water structure 2 together with the rubber fender 10 (details will be described later).

[0021] (Plate 2) As shown in Figure 1, the second plate 22 is one of several plates that make up the corrosion-resistant metal part 20. The first plate 21 is attached to the second plate 22. The second plate 22 is attached to the water structure 2 via the third plate 30. The first plate 21 is removed from the water structure 2 along with the rubber fender 10 by being removed from the second plate 22. Furthermore, as shown in Figure 1, the first plate 21 overlaps the second plate 22. That is, all surfaces of the first plate 21 facing the second plate 22 are in contact with the second plate 22. Alternatively, only a portion of the surfaces of the first plate 21 facing the second plate 22 may be in contact with the second plate 22.

[0022] (Third plate) As shown in Figure 1, the third plate 30 connects the corrosion-resistant metal part 20 and the water structure 2. Specifically, the third plate 30 connects the second plate 22 of the corrosion-resistant metal part 20 to the water structure 2. One end of the third plate 30 is joined, for example, by welding, to the side of the corrosion-resistant metal part 20 that is opposite to the second plate 22 and the rubber fender 10. This allows the second plate 22 and the third plate 30 to be firmly fixed together. The other end of the third plate 30 is connected to the water structure 2. In this embodiment, the portion of the water structure 2 to which the other end of the third plate 30 is connected is made of, for example, stainless clad steel. That is, in this embodiment, the other end of the third plate 30 is connected to a member made of stainless clad steel.

[0023] In this embodiment, the third plate 30 includes a connecting plate 31 and a reinforcing plate 32, as shown in Figure 1. The connecting plate 31 is a plate-shaped member whose ends are connected to the corrosion-resistant metal part 20 and the water structure 2, respectively. As shown in Figure 1, one end of the connecting plate 31 is joined to the second plate 22, and the other end is connected to a stainless steel clad member of the water structure 2. In this embodiment, the one end and the other end of the third plate 30 are the one end and the other end of the connecting plate 31. As shown in Figure 1, the connecting plates 31 are provided in pairs. For example, one pair of connecting plates 31 may be provided along the entire length of a pair of edges located on both sides of the second direction D2 of the second plate 22. Alternatively, for example, multiple pairs of connecting plates 31 may be provided at intervals in the third direction D3. As shown in Figure 1, the reinforcing plate 32 is a plate-shaped member that reinforces the connection between the connecting plate 31 and the second plate 22. One reinforcing plate 32 may be provided for each connecting plate 31, or multiple reinforcing plates 32 may be provided.

[0024] In this embodiment, the third plate 30 is made of stainless steel. That is, the connecting plate 31 and the reinforcing plate 32 are made of stainless steel.

[0025] (Fastening part) The fastening portion 40 connects the above-described components of the fender structure 1 to one another. As shown in Figure 1, the fastening portion 40 includes a first bolt 41, a first nut 42, a second bolt 43, and a second nut 44.

[0026] As shown in Figure 1, the first bolt 41 connects the first plate 21 and the second plate 22. In other words, the first plate 21 is attached to the second plate 22 by the first bolt 41. The first bolt 41 is a separate component from the corrosion-resistant metal part 20 and is inserted into a through hole (not shown) formed in the corrosion-resistant metal part 20. The first nut 42 is fastened to the first bolt 41, as shown in Figure 1. This connects the first plate 21 and the second plate 22.

[0027] As shown in Figure 1, the second bolt 43 connects the rubber fender 10 and the first plate 21. In other words, the mounting portion 11 of the rubber fender 10 and the first plate 21, which includes the portion 20A that contacts the rubber fender 10, are connected by the second bolt 43.

[0028] In this embodiment, the second bolt 43 is a stud bolt attached to the first plate 21, as shown in Figure 1. This prevents the second bolt 43 from being exposed on the surface of the first plate 21 facing the second plate 22. This prevents a gap from forming between the first plate 21 and the second plate 22. The second nut 44 is fastened to the second bolt 43, as shown in Figure 1. This connects the rubber fender 10 and the first plate 21.

[0029] In this embodiment, as shown in Figure 2, the first bolts 41 are provided in pairs. The two first bolts 41 constituting one pair are provided at an interval in the second direction D2. These two first bolts 41 sandwich the rubber fender 10 in the second direction D2. In the illustrated example, five pairs of first bolts 41 are provided at intervals in the third direction D3. The second bolts 43 are provided in pairs. The two second bolts 43 constituting a pair are provided spaced apart in the second direction D2. Each of these two second bolts 43 is provided on the first plate 21 so as to protrude from the first plate 21 toward the rubber fender 10 side (the side opposite to the second plate 22). Each of these two second bolts 43 is fixed to each of the two mounting parts 11 of the rubber fender 10. Of the two second bolts 43, the second bolt 43 located on the first side of the second direction D2 is fixed to the mounting part 11 located on the first side of the second direction D2. Of the two second bolts 43, the second bolt 43 located on the second side of the second direction D2 is fixed to the mounting part 11 located on the second side of the second direction D2. In the illustrated example, the second bolts 43, which come in pairs, are provided in three sets at intervals in the third direction D3.

[0030] Here, the first plate 21 is detachable from the second plate 22. The first plate 21 is attached to the second plate 22 by a first bolt 41 and a first nut 42. Therefore, by removing the first bolt 41 and the first nut 42, the first plate 21 can be easily attached to and detached from the second plate 22.

[0031] Furthermore, the rubber fender 10 is detachable from the first plate 21. The rubber fender 10 is attached to the first plate 21 by a second bolt 43 and a second nut 44. Therefore, by removing the second bolt 43 and the second nut 44, the rubber fender 10 can be easily attached to and detached from the first plate 21.

[0032] In this embodiment, each of the first bolt 41, first nut 42, second bolt 43, and second nut 44 may be made of, for example, the corrosion-resistant metal described above. This makes it possible to create a fastening part 40 with excellent corrosion resistance. In this embodiment, commercially available bolts 41, nut 42, bolt 43, and nut 44 are preferably used. This is preferable to reduce the cost of the fastening portion 40.

[0033] Figure 5 shows a modified example in which the fastening portion 40 further includes a washer W. Furthermore, as shown in Figure 5, the fastening portion 40 may also be further equipped with a washer W. As shown in Figure 5, for example, an L-shaped washer W may be used. That is, the washer W includes, for example, a first part W1 that faces the surface of the first plate 21 or the surface of the mounting portion 11, and a second part W2 that protrudes from the end of the first part W1 in the second direction D2 so as to bend. In this way, by hooking the second part W2 onto the end of the first plate 21 or the mounting portion 11 in the second direction D2, the rotation of the washer W may be suppressed when fastening the fastening portion 40. In this embodiment, the washer W is preferably made of the corrosion-resistant metal described above. Alternatively, a washer of a normal shape may be used instead of the washer W described above.

[0034] (Details of Plate 1) As shown in Figures 1 and 2, the first plate 21 is equipped with a lifting fitting (mounting part) 23 to which a lifting device such as a crane can be attached. The lifting fitting 23 is integrally formed with the first plate 21. In this embodiment, the lifting fitting 23 is provided at two locations separated in the second direction D2, with a shape that protrudes outward (upward) on one of a pair of sides located on both sides of the first plate 21 in the third direction D3. In this embodiment, the third direction D3 is the vertical direction, and the aforementioned side is the upper side. The lifting fitting 23 is provided with a through hole 23a. The through hole 23a penetrates the lifting fitting 23 in the first direction D1.

[0035] The lifting bracket 23 does not necessarily have to be formed integrally with the first plate 21. In this case, for example, the lifting bracket 23 may be welded to the first plate 21. Alternatively, instead of the lifting bracket 23, a through hole 23a to which a lifting device such as a crane can be attached may be formed in the first plate 21.

[0036] The first plate 21 can accommodate multiple types of rubber fenders 10 of different sizes or shapes by, for example, changing the pitch of the second bolts 43. However, if the first plate 21 can accommodate multiple types of rubber fenders 10 of different sizes or shapes, changing the pitch of the second bolts 43 is not essential.

[0037] When installing multiple types of rubber fenders 10 of different sizes or shapes, for example, the existing rubber fender 10 is removed, and the second bolt 43 is cut off. Next, the second bolt 43 is installed in a position corresponding to the size of the new rubber fender 10, and the new rubber fender 10 is connected. At this time, the pitch of the second bolt 43 only needs to correspond to the new rubber fender 10, and may be wider or narrower than the existing arrangement.

[0038] Alternatively, the existing first plate 21 may be replaced with a new first plate 21 on which second bolts 43 are provided at positions corresponding to the sizes of multiple types of rubber fenders 10 of different sizes or shapes. By connecting the rubber fenders 10 to the second bolts 43 provided on the new first plate 21, multiple types of rubber fenders 10 of different sizes or shapes can be attached.

[0039] As described above, according to the fender structure 1 of this embodiment, the first plate 21, the second plate 22, and the rubber fender material 10 are arranged in the order of rubber fender material 10, first plate 21, and second plate 22. The first plate 21 overlaps the second plate 22. As a result, for example, the rubber fender material 10 can be removed from the installation site of the fender structure 1 by removing the first plate 21, which is connected to the rubber fender material 10, from the second plate 22. Therefore, the rubber fender material 10 can be removed in a short amount of time. Furthermore, for example, replacing a rubber fender 10 with a new one can be done by attaching the first plate 21 connected to the new rubber fender 10 to the second plate 22. Therefore, work can be easily carried out at the installation site of the fender structure 1.

[0040] Furthermore, the first plate 21 is detachable from the second plate 22. This allows the first plate 21 to be removed from the second plate 22. Therefore, for example, when replacing or maintaining the rubber fender 10, the first plate 21 to which the rubber fender 10 is attached can be moved from the installation location of the fender structure 1 to a workshop or similar location. Consequently, replacement and maintenance work on the rubber fender 10 can be carried out in a workshop or similar location, making it easier to replace or maintain the rubber fender 10.

[0041] Furthermore, the first plate 21 is attached to the second plate 22 by the first bolt 41. This allows the first plate 21 to be easily attached to and detached from the second plate 22, for example, by attaching and detaching the first bolt 41.

[0042] Furthermore, the rubber fender 10 is detachable from the first plate 21. This eliminates the need to replace the rubber fender 10 along with a new first plate 21 when replacing the rubber fender 10; only the rubber fender 10 can be replaced with a new one. Therefore, the same first plate 21 can continue to be used even after replacing the rubber fender 10. Consequently, the cost associated with replacing the rubber fender 10 can be reduced.

[0043] Furthermore, the rubber fender 10 and the portion 20A of the first plate 21 that contacts the rubber fender 10 are connected by a second bolt 43. This allows the rubber fender 10 to be easily attached to and detached from the corrosion-resistant metal portion 20, for example, by attaching and detaching the second bolt 43.

[0044] Furthermore, the first plate 21 has a lifting bracket 23 to which lifting equipment such as cranes can be attached. This makes it possible to attach lifting equipment from cranes such as land cranes, ship cranes, and cranes on crane ships to the lifting bracket 23. Thus, the first plate 21 can be lifted together with the rubber fender 10. Consequently, work can be easily carried out, for example, at the installation site of the fender structure 1.

[0045] Furthermore, the lifting bracket 23 is provided on the upper edge of the first plate 21. This allows the first plate 21, to which the rubber fender 10 is attached, to be easily lifted from above the fender structure 1 when lifted by a crane or the like.

[0046] Furthermore, the lifting bracket 23 may be provided in the second direction D2 so as to sandwich the rubber fender 10. This allows the first plate 21, to which the rubber fender 10 is attached, to be lifted with a crane or the like in a balanced manner.

[0047] Furthermore, the first plate 21 can accommodate multiple types of rubber fenders 10 of different sizes and shapes. This allows for easy installation of rubber fenders 10 of different sizes and shapes if, for example, rubber fenders 10 of different sizes or shapes are needed in the future.

[0048] Furthermore, by removing the existing second bolt 43 and attaching a second bolt 43 to the first plate 21 that matches the size of the new rubber fender 10, the pitch of the second bolt 43 can be changed. This makes it possible to attach multiple types of rubber fenders 10 of different sizes or shapes without replacing the existing first plate 21 with a new one.

[0049] Alternatively, the existing first plate 21 may be replaced with a new first plate 21 on which second bolts 43 are provided at positions corresponding to the size of multiple types of rubber fenders 10 of different sizes or shapes. This allows multiple types of rubber fenders 10 of different sizes or shapes to be attached to the new first plate 21.

[0050] (Aquatic structure) According to the water body structure 2 of this embodiment, it is equipped with the fender structure 1 according to the disclosure. As a result, the above-mentioned effects can be enjoyed in the water body structure 2.

[0051] (How to replace rubber fenders) Next, a method for replacing the rubber fender material 10 of the fender structure 1 according to this embodiment will be described. The rubber fender material 10 is replaced by the method described below, for example, when it deteriorates over time or is damaged by contact with a ship. The replacement method according to this embodiment includes a removal step, a replacement step, and an installation step.

[0052] (Removal step) Figure 3 is a schematic diagram showing the removal step according to the embodiment. The removal step, as shown in Figure 3, is the process of removing the first plate 21, to which the rubber fender 10 is attached, from the second plate 22.

[0053] In the removal step, first, as shown in Figure 3, the first nut 42 is removed from the first bolt 41. Then, the first plate 21 is removed from the second plate 22. This removes the rubber fender 10 from the water structure 2 along with the first plate 21. At this time, as shown in Figure 3, the second plate 22 remains attached to the water structure 2 even after the first plate 21 has been removed from the water structure 2 along with the rubber fender 10. This makes it easy to replace the rubber fender 10 by attaching the first plate 21, to which the new rubber fender 10 is attached, to the second plate 22. In this embodiment, the removal step is performed, for example, by a worker at the installation site of the fender structure 1.

[0054] (Exchange step) Figure 4 is a schematic diagram showing the replacement steps according to the embodiment. The replacement step, as shown in Figure 4, is the process of replacing the rubber fender 10 attached to the first plate 21 that was removed in the removal step with a new rubber fender 10. The new rubber fender 10 may be the same size or shape as the rubber fender 10 before replacement, or it may be a different size or shape. In the replacement step, first, as shown in Figure 4, the second nut 44 is removed from the second bolt 43. Next, the rubber fender 10 is removed from the first plate 21. Then, the first plate 21 and the new rubber fender 10 are aligned. Finally, the first plate 21 and the new rubber fender 10 are secured together with the second bolt 43 and the second nut 44.

[0055] (Installation steps) The installation step involves attaching the first plate 21, which has had its rubber fender 10 replaced with a new rubber fender 10 in the replacement step, to the second plate 22. In the installation step, first, the first plate 21 and the second plate 22 are aligned. Then, the first plate 21 and the second plate 22 are fixed together with the first bolt 41 and the first nut 42. This returns the fender structure 1 to the state shown in Figure 1. In this embodiment, the installation step is performed, for example, by a worker at the installation site of the fender structure 1. The rubber fenders 10 are replaced through the above steps.

[0056] As described above, according to the replacement method of this embodiment, in the removal step, the first plate 21 to which the rubber fender 10 is attached is removed from the second plate 22. This allows, for example, the first plate 21 to which the rubber fender 10 is attached to be moved from the installation location of the fender structure 1 to a workshop or the like. Therefore, for example, the replacement work of the rubber fender 10 can be carried out in a workshop or the like, making it easy to replace the rubber fender 10. In the replacement step, the rubber fender 10 attached to the first plate 21 that was removed in the removal step is replaced with a new rubber fender 10. In the installation step, the first plate 21, which has had its rubber fender 10 replaced with a new rubber fender 10 in the replacement step, is attached to the second plate 22. According to the above replacement method, the same first plate 21 can continue to be used even after the rubber fender 10 has been replaced. Therefore, for example, the cost of replacing the rubber fender 10 can be reduced.

[0057] (Second Embodiment) Next, the replacement method of the second embodiment of this disclosure will be described with reference to Figure 3. In this second embodiment, the same reference numerals are used for parts that are the same as those in the first embodiment, and their descriptions are omitted. Only the differences will be described.

[0058] The replacement method according to the second embodiment comprises a removal step and an installation step. Since a part of the removal step according to the second embodiment is the same as the removal step of the first embodiment, a description of that part will be omitted.

[0059] (Removal step) The removal step, as shown in Figure 3, is the process of removing the first plate 21, to which the rubber fender 10 is attached, from the second plate 22. In this embodiment, the removal step is performed, for example, by a worker at the installation site of the fender structure 1. In the removal step, the rubber fender 10 is removed from the water structure 2 along with the first plate 21.

[0060] (Installation steps) The installation step involves attaching the first plate 21, to which the new rubber fender 10 is attached, to the second plate 22. In this embodiment, the installation step is performed, for example, by a worker at the installation site of the fender structure 1. Here, the replacement method according to the second embodiment differs from the replacement method according to the first embodiment in that it does not include a replacement step of removing the rubber fender 10 from the existing first plate 21 and replacing only the rubber fender 10 with a new one. In other words, in the replacement method according to the first embodiment, the same first plate 21 is used even after the rubber fender 10 has been replaced. On the other hand, in the second embodiment, both the rubber fender 10 and the first plate 21 are replaced with new ones. Specifically, the first plate 21, to which the new rubber fender 10 is attached, and the second plate 22 are fixed together with the first bolt 41 and the first nut 42. This returns the fender structure 1 to the state shown in Figure 1. The rubber fenders 10 are replaced through the above steps.

[0061] As described above, according to the replacement method of the second embodiment, in the removal step, the first plate 21 to which the rubber fender 10 is attached is removed from the second plate 22. This allows, for example, the first plate 21 to which the rubber fender 10 is attached to be moved from the installation location of the fender structure 1 to a workshop or the like. Therefore, for example, the replacement work of the rubber fender 10 can be carried out in a workshop or the like, making it easy to replace the rubber fender 10. Furthermore, in the installation step, the new first plate 21, to which the new rubber fender 10 has been attached, is attached to the second plate 22. According to the above replacement method, the rubber fender 10 and the first plate 21 can be replaced together. This makes the replacement work more efficient.

[0062] (Maintenance method for rubber fenders) Next, a maintenance method for the rubber fender material 10 of the fender structure 1 according to this embodiment will be described. The maintenance method according to this embodiment includes a removal step and an installation step.

[0063] (Removal step) The removal step in the maintenance method is the same as the removal step in the replacement method, and involves removing the first plate 21, to which the rubber fender 10 is attached, from the second plate 22. In this embodiment, the removal step is performed, for example, by a worker at the installation site of the fender structure 1. In the removal step, the rubber fender 10 is removed from the water structure 2 along with the first plate 21.

[0064] The worker moves the rubber fender 10, which was removed in the removal step, from the installation location of the fender structure 1 to a work area or similar location, and performs maintenance. If no abnormalities are found in the rubber fender 10 as a result of the maintenance, the rubber fender 10 will continue to be used. In this case, the worker proceeds to the installation step. If any abnormality is found in the rubber fender 10, the rubber fender 10 will be replaced using the replacement method described above.

[0065] (Installation steps) The installation step involves attaching the first plate 21, to which the rubber fender material 10 is attached and which was removed in the removal step, to the second plate 22. In this embodiment, the installation step is performed, for example, by a worker at the installation site of the fender structure 1. Specifically, the first plate 21, to which the rubber fender material 10 is attached, and the second plate 22 are fixed together by the first bolt 41 and the first nut 42. This returns the fender structure 1 to the state shown in Figure 1. The rubber fenders 10 are maintained through the above steps.

[0066] As described above, according to the maintenance method of this embodiment, in the removal step, the first plate 21 to which the rubber fender 10 is attached is removed from the second plate 22. This allows, for example, the first plate 21 to which the rubber fender 10 is attached to be moved from the installation location of the fender structure 1 to a workshop or the like. Therefore, maintenance work on the rubber fender 10 can be performed in a workshop or the like, for example, making maintenance of the rubber fender 10 easy.

[0067] The technical scope of this disclosure is not limited to the embodiments described above, and various modifications can be made without departing from the spirit of this disclosure. For example, the first plate 21 does not have to be attached to the second plate 22 by the first bolt 41. For example, the first plate 21 and the second plate 22 may be joined by welding. Also, the first plate 21 does not have to have a suspension fitting 23. Furthermore, the first plate 21 does not have to be capable of attaching multiple types of rubber fenders 10 of different sizes or multiple types of rubber fenders 10 of different shapes. Furthermore, on the side of the second plate 22 opposite to the rubber fender 10, one end of the third plate 30 does not need to be joined by welding. For example, one end of the third plate 30 and the second plate 22 may be appropriately fixed together with bolts or the like. Furthermore, the rubber fender 10 and the portion 20A of the first plate 21 that contacts the rubber fender 10 do not necessarily have to be connected by the second bolt 43. For example, the rubber fender 10 and portion 20A may be joined together with an adhesive or the like. Furthermore, the rubber fender 10 does not need to be detachable from the first plate 21.

[0068] Furthermore, it is possible to replace the components in the above embodiments with well-known components as appropriate, without departing from the spirit of this disclosure, and the above-described modifications may be combined as appropriate.

[0069] (Note) The fender structure according to the above embodiment can be understood, for example, as follows.

[0070] <1> A fender structure according to one aspect of the present disclosure is a fender structure for a ship to dock, comprising a rubber fender and a corrosion-resistant metal part to which the rubber fender is connected, wherein the corrosion-resistant metal part includes a first plate and a second plate, which include a portion that contacts the rubber fender, and the first plate, the second plate, and the rubber fender are arranged in the order of the rubber fender, the first plate, and the second plate, and the first plate overlaps the second plate.

[0071] In the fender structure described above, the first plate, the second plate, and the rubber fender are arranged in the order of rubber fender, first plate, and second plate. The first plate overlaps the second plate. This allows, for example, the rubber fender to be removed from the installation site of the fender structure by detaching the first plate, which is connected to the rubber fender, from the second plate. Therefore, the rubber fender can be removed in a short amount of time. Furthermore, for example, replacing a rubber fender with a new one can be done by attaching the first plate, which is connected to the new rubber fender, to the second plate. This makes it easier to perform work at the installation site of the fender structure.

[0072] <2> the above <1> In the fender structure relating to this, a configuration may be adopted in which the first plate is attached to the second plate by first bolts.

[0073] The first plate is attached to the second plate by the first bolt. This allows the first plate to be easily attached to and detached from the second plate, for example, by attaching and removing the first bolt.

[0074] <3> the above <1> or <2> In the fender structure relating to this, a configuration may be adopted in which one end of the third plate is joined by welding on the side of the second plate that is opposite to the rubber fender material.

[0075] On the side of the second plate opposite the rubber fender, one end of the third plate is joined by welding. This allows, for example, the second plate and the third plate to be firmly fixed together.

[0076] <4> the above <1> ~ <3> In any one embodiment of the fender structure, a configuration may be adopted in which the rubber fender material and the part are connected by a second bolt.

[0077] The rubber fender and the area where it comes into contact are connected by a second bolt. This allows the rubber fender to be easily attached to and detached from the corrosion-resistant metal part, for example, by installing and removing the second bolt.

[0078] <5> the above <1> ~ <4> In any one embodiment of the fender structure, the first plate may be configured to have a mounting portion to which a crane lifting device can be attached.

[0079] The first plate has a mounting section to which lifting equipment such as cranes can be attached. This allows the first plate, along with the rubber fender material, to be lifted by a crane or similar equipment. Therefore, for example, work at the installation site of the fender structure can be easily carried out.

[0080] <6> the above <1> ~ <5> In any one embodiment of the fender structure, the first plate may be configured such that it can accommodate multiple types of rubber fenders of different sizes.

[0081] The first plate can accommodate multiple types of rubber fenders of different sizes. This allows for easy installation of multiple types of rubber fenders of different sizes if, for example, rubber fenders of different sizes become necessary in the future.

[0082] <7> the above <1> ~ <6> In any one embodiment of the fender structure, the first plate may be configured such that multiple types of rubber fenders of different shapes can be attached to it.

[0083] The first plate can accommodate multiple types of rubber fenders with different shapes. This allows for easy installation of multiple types of rubber fenders with different shapes if, for example, a different shape of rubber fender is needed in the future.

[0084] <8> the above <1> ~ <7> In any one embodiment of the fender structure, the first plate and the second plate may be made of a non-Ni alloy.

[0085] The first and second plates are not made of nickel-based alloy. This allows for corrosion resistance to be ensured while, for example, keeping the cost of the first and second plates down to some extent.

[0086] <9> the above <1> ~ <8> In any one embodiment of the fender structure, the rubber fender material may be configured to be detachable from the first plate.

[0087] The rubber fenders are detachable from the first plate. This allows, for example, when replacing the rubber fenders, only the rubber fenders themselves can be replaced. Therefore, the same first plate can continue to be used even after the rubber fenders have been replaced. Consequently, the cost associated with replacing the rubber fenders can be reduced.

[0088] <10> the above <1> ~ <9> In a fender structure according to any one of the embodiments, the first plate may be detachably attached to the second plate.

[0089] The first plate is detachable from the second plate. This allows the first plate to be removed from the second plate. Therefore, for example, when replacing or maintaining the rubber fenders, the first plate to which the rubber fenders are attached can be moved from the installation site of the fender structure to a workshop or similar location. Consequently, replacement and maintenance of the rubber fenders can be carried out in a workshop or similar location, making replacement and maintenance of the rubber fenders easier.

[0090] <11> A water body structure relating to one aspect of this disclosure is the above <1> ~ <10> It is equipped with a fender structure relating to one of the following embodiments.

[0091] The above-mentioned aquatic structure is equipped with the fender structure according to this disclosure. As a result, the above-mentioned effects can be enjoyed in the aquatic structure.

[0092] <12> The exchange method relating to one aspect of this disclosure is as described above. <1> ~ <10> A method for replacing a rubber fender in a fender structure according to any one embodiment of the present invention, comprising: a removal step of removing the first plate to which the rubber fender is attached from the second plate; a replacement step of replacing the rubber fender attached to the first plate removed in the removal step with a new rubber fender; and an attachment step of attaching the first plate, to which the rubber fender has been replaced in the replacement step with a new rubber fender, to the second plate.

[0093] According to the above replacement method, in the removal step, the first plate to which the rubber fender is attached is removed from the second plate. This allows, for example, the first plate to which the rubber fender is attached to be moved from the installation location of the fender structure to a workshop or similar location. Therefore, since the replacement work of the rubber fender can be carried out in a workshop or similar location, the replacement of the rubber fender can be easily performed. In the replacement step, the rubber fender attached to the first plate, which was removed in the removal step, is replaced with a new rubber fender. In the installation step, the first plate, whose rubber fender was replaced with a new rubber fender in the replacement step, is attached to the second plate. According to the above replacement method, the same first plate can continue to be used even after the rubber fenders have been replaced. Therefore, for example, the cost of replacing the rubber fenders can be reduced.

[0094] <13> The exchange method relating to one aspect of this disclosure is as described above. <1> ~ <10> A method for replacing a rubber fender in a fender structure according to any one embodiment of the present invention, comprising: a removal step of removing the first plate to which the rubber fender is attached from the second plate; and an attachment step of attaching the new first plate to which the rubber fender is attached to the second plate.

[0095] According to the above replacement method, in the removal step, the first plate to which the rubber fender is attached is removed from the second plate. This allows, for example, the first plate to which the rubber fender is attached to be moved from the installation location of the fender structure to a workshop or similar location. Therefore, since the replacement work of the rubber fender can be carried out in a workshop or similar location, the replacement of the rubber fender can be easily performed. In the installation step, the first plate, which has a new rubber fender attached, is attached to the second plate. According to the above replacement method, the rubber fenders and the first plate can be replaced together. This makes the replacement work more efficient.

[0096] <14> The maintenance method relating to one aspect of this disclosure is as described above. <1> ~ <10> A maintenance method for a rubber fender material having a fender structure according to any one embodiment thereof, characterized by comprising: a removal step of removing the first plate to which the rubber fender material is attached from the second plate; and an attachment step of attaching the first plate to which the rubber fender material is attached, which was removed in the removal step, to the second plate.

[0097] According to the maintenance method described above, in the removal step, the first plate to which the rubber fender is attached is removed from the second plate. This allows, for example, the first plate to which the rubber fender is attached to be moved from the installation location of the fender structure to a workshop or similar location. Therefore, maintenance work on the rubber fender can be performed in a workshop or similar location, making maintenance of the rubber fender easier. [Explanation of symbols]

[0098] 1 Fender structure 2 Water body structures 10. Rubber fenders 11 Mounting part 12 Buffer section 20 Corrosion-resistant metal parts 20A part 21 Plate 1 22 Second Plate 23. Hanging bracket (mounting part) 30 Third Plate 31 Connecting plate 32 Reinforcement plate 40 Fastening part 41 Bolt 1 42 First Nut 43 Second bolt 44. Second nut

Claims

1. A fender structure on which a ship docks, Rubber fenders and The aforementioned rubber fender is connected to a corrosion-resistant metal part, It has, The corrosion-resistant metal part includes a first plate and a second plate, which include a portion that comes into contact with the rubber fender. The first plate, the second plate, and the rubber fender are arranged in the order of the rubber fender, the first plate, and the second plate. The first plate overlaps the second plate, The first plate is detachable from the second plate. The first plate is made of a corrosion-resistant metal. The first plate mentioned above is made of stainless steel, On the side of the second plate, opposite to the rubber fender, one end of the third plate is joined by welding. One end of the third plate is joined to the second plate by welding. A fender structure characterized by the following features.

2. The first plate is attached to the second plate by a first bolt. The fender structure according to feature 1.

3. The rubber fender and the aforementioned part are connected by a second bolt. A fender structure according to feature 1 or 2.

4. The first plate has a mounting portion to which a crane lifting device can be attached, A fender structure according to feature 1 or 2.

5. The first plate can be fitted with multiple types of rubber fenders of different sizes. A fender structure according to feature 1 or 2.

6. The first plate can be fitted with multiple types of rubber fenders of different shapes. A fender structure according to feature 1 or 2.

7. The first plate and the second plate are not made of a Ni-based alloy. A fender structure according to feature 1 or 2.

8. The rubber fender is detachable from the first plate. A fender structure according to feature 1 or 2.

9. A fender structure as described in claim 1 or 2, A water body structure characterized by the following features.

10. A method for replacing the rubber fender material of a fender structure according to claim 1 or 2, A removal step of removing the first plate, to which the rubber fender is attached, from the second plate, A replacement step in which the rubber fender attached to the first plate that was removed in the removal step is replaced with a new rubber fender, An attachment step in which the first plate, which has had the rubber fender replaced with a new rubber fender in the replacement step, is attached to the second plate, A replacement method characterized by having the following features.

11. A method for replacing the rubber fender material of a fender structure according to claim 1 or 2, A removal step of removing the first plate, to which the rubber fender is attached, from the second plate, A mounting step of attaching the first plate, to which the new rubber fender material is attached, to the second plate, A replacement method characterized by having the following features.

12. A method for maintaining the rubber fender material of the fender structure according to claim 1 or 2, A removal step of removing the first plate, to which the rubber fender is attached, from the second plate, An attachment step is to attach the first plate, to which the rubber fender material has been attached, which was removed in the removal step, to the second plate. A maintenance method characterized by having the following features.

Images