WO2022138927A1

WO2022138927A1 - Transfer assistance device

Info

Publication number: WO2022138927A1
Application number: PCT/JP2021/048228
Authority: WO
Inventors: 正己松浦; 法史吉田
Original assignee: 崎永海運株式会社; 特定非営利活動法人長崎海洋産業クラスター形成推進協議会
Priority date: 2020-12-25
Filing date: 2021-12-24
Publication date: 2022-06-30
Also published as: JPWO2022138927A1

Abstract

This transfer assistance device 1 comprises: a bridge body 10 which allows a person to walk thereon; a leading-end fixation member 12 which is disposed on a leading end-side of the bridge body 10 and which is for fixing the bridge body 10 to an offshore wind power generation facility 3; and a bridge body control unit 14 which is provided to a lower part of the bridge body 10 and also on a ship 2, and which holds the bridge body 10 horizontally so as to cope with rocking of the ship 2. The bridge body control unit 14 is provided with: a ball joint part 40 for supporting the bridge body 10; and a bridge body shock absorbing part 42 for absorbing the rocking movement of the bridge body 10.

Description

Transfer support device

The present invention relates to a transfer support device that enables the transfer of a person from a ship to an offshore wind power generation facility.

In recent years, expectations for renewable energy have been increasing in order to counter global warming and improve the energy self-sufficiency rate. Above all, in Japan, which is a maritime nation, expectations are high for the power generation business in the ocean.

On the other hand, in wind power generation among renewable energies, maintenance is the key to securing the operating rate (power generation amount). In offshore wind power generation, which is one of the wind power generation, maintenance is also important to secure the operation rate, but maintenance is greatly affected by the transfer of people from the access ship to the offshore wind power generation facility due to the marine weather. Is not easy to do stably and safely. Therefore, there is a demand for a transfer support device capable of stably and safely transferring a person.

Such a transfer support device is, for example, a transfer support device that connects a first floating body and a second floating body, which are floating bodies that move irregularly together, and is extended from the first floating body and is relative to each other. It is characterized by having a connecting body that is flexible enough to absorb a specific movement and can move a person, and an adsorbent that is provided at the tip of the connecting body and can be adsorbed on the outer wall of the second floating body. It is a transfer support device (see Patent Document 1) and a transfer support device that is bridged between a ship and an offshore wind power generation facility so that a person can cross it. The main body, which swells in a shape that allows the wind turbine to cross, and is installed on both sides of the main body in the width direction, and is stretched between the ship and the offshore wind power generation facility. It is equipped with a hanging cable that can hang the main body in the handed state, and the main body is equipped with handrails on both sides in the width direction, and each hanging cable has one end connected to the ship and the other end. A transfer support device (see Patent Document 2) having a hook-shaped coupling means capable of coupling to a predetermined support member provided on the outer wall of an offshore wind power generation facility by hooking has been proposed.

Japanese Unexamined Patent Publication No. 2014-156179 Japanese Unexamined Patent Publication No. 2016-097908

In the conventional transfer support device, it is necessary to mount a high-precision control device, etc., and there are problems that the system is complicated and costly to manufacture and maintain, and that the device becomes large and cannot be mounted on a small ship. ..

An object of the present invention is to provide a transfer support device capable of stably and safely transferring a person with a simple configuration.

As a result of diligent studies on a transfer device from a ship to an offshore wind power generation facility, the present inventors have found a ball joint portion provided on the ship in a state where the bridge body is bridged and fixed from the ship to the offshore wind power generation facility. By mechanically controlling the bridge body in the equipped control unit, the bridge body can be held in a horizontal state in response to the shaking of the ship, which enables stable and safe transfer of people. I found it and came to complete the present invention.

That is, the present invention is as follows.
[1] A transfer support device that is mounted on a ship and bridges from the ship to an offshore wind power generation facility to enable the transfer of people.
The main body of the bridge where people can walk and
A tip fixing member provided on the tip side of the bridge body and fixing the bridge body to the offshore wind power generation facility, and
A bridge body control unit provided at the lower part of the bridge body and on the ship to hold the bridge body in a horizontal state in response to the shaking of the ship.
Equipped with
The bridge body control unit
A transfer support device including a ball joint portion that supports the bridge body and a bridge body cushioning portion that cushions the swing of the bridge body.

[2] The ball joint portion is
A ball stud including a stud portion and a ball portion connected to the stud portion, and a ball stud.
A socket in which the ball portion of the ball stud is housed in a spherical contact state and is swingably connected to the ball stud,
The transfer support device according to the above [1].
[3] The transfer support device according to the above [1] or [2], wherein the bridge main body cushioning portion includes an elastic cushioning member connected to the ship and the bridge main body.
[4] The transfer support device according to any one of the above [1] to [3], wherein the bridge main body is provided with an advancing / retreating mechanism capable of advancing / retreating in the front-rear direction thereof.

[5] The tip fixing member is rotatably supported by the tip of the bridge body in the pitch direction, and at least one rotation in the pitch direction is suppressed by the tip fixing member suppressing portion. The transfer support device according to any one of the above [1] to [4].
[6] The transfer support device according to the above [5], wherein the tip fixing member is supported by a ball joint.
[7] The tip rotation suppressing member is provided on the left and right of the ball joint and abuts on the lower surface of the tip fixing member to suppress the rotation of the tip fixing member in the pitch direction and the roll direction. The transfer support device according to the above [6].
[8] The bridge body control unit further includes an auxiliary buffer unit that cushions a large swing of the bridge body.
The auxiliary cushioning portion includes a tubular body that covers at least the upper portion of a ball joint portion that supports the bridge body, and a tubular body receiving cushioning member provided on a ship below the tubular body. The transfer support device according to the above [1] to [7].

[9] A ship equipped with the transfer support device according to any one of the above [1] to [8].

According to the transfer support device of the present invention, a person can be transferred stably and safely with a simple configuration.

It is a figure which shows the state that the ship equipped with the transfer support device which concerns on one Embodiment of this invention approaches an offshore wind power generation facility. It is a schematic explanatory view of the transfer support device which concerns on one Embodiment of this invention, (a) is the schematic plan view of the transfer support device, and (b) is the schematic side view of the transfer support device. It is a schematic plan plan enlarged view of the tip fixing member in the transfer support apparatus which concerns on one Embodiment of this invention, (a) shows the state just before being fixed to an offshore wind power generation facility, (b) is fixed to an offshore wind power generation facility. Indicates the state of operation. It is a schematic plan view of the state where the bridge main body of the transfer support device which concerns on one Embodiment of this invention is fixed to the offshore wind power generation facility through the tip fixing member, and (a)-(c) are the direction | yaw direction of a ship. It is explanatory drawing in the case of shaking. It is a schematic rear view of the state where the bridge main body of the transfer support device which concerns on one Embodiment of this invention is fixed to the offshore wind power generation facility through the tip fixing member, and (a)-(c) are the roll direction of a ship. It is explanatory drawing in the case of shaking. It is a schematic side view of the state which the bridge main body of the transfer support device which concerns on one Embodiment of this invention is fixed to the offshore wind power generation facility through the tip fixing member, and (a)-(c) are the side view of the ship in the pitch direction. It is explanatory drawing in the case of shaking. It is a schematic explanatory diagram of the transfer work of a person using the transfer support device which concerns on one Embodiment of this invention. It is a schematic explanatory view of the transfer support device which concerns on other embodiment of this invention, (a) is the schematic plan view of the transfer support device, and (b) is the schematic side view of the transfer support device. It is a schematic plan view of the transfer support device which concerns on other embodiment of this invention, (a) shows the state just before being fixed to the offshore wind power generation facility, (b) shows the state fixed to the offshore wind power generation facility. .. It is a schematic plan view of the state where the bridge main body of the transfer support device which concerns on other embodiment of this invention is fixed to the offshore wind power generation facility through the tip fixing member, and (a)-(c) are the yaw direction of a ship. It is explanatory drawing in the case of shaking. It is a schematic rear view of the state where the bridge main body of the transfer support device which concerns on other embodiment of this invention is fixed to the offshore wind power generation facility through the tip fixing member, and (a)-(c) are the roll direction of a ship. It is explanatory drawing in the case of shaking. It is a schematic side view of the state which the bridge main body of the transfer support apparatus which concerns on other embodiment of this invention is fixed to the offshore wind power generation facility through the tip fixing member, and (a)-(c) are the pitch direction of a ship. It is explanatory drawing in the case of shaking. It is explanatory drawing of the auxiliary cushioning part in the transfer support apparatus which concerns on other embodiment of this invention, and is the schematic rear view of the state which the ship shook greatly in the roll direction.

The transfer support device of the present invention is a transfer support device mounted on a ship and bridged from a ship to an offshore wind power generation facility to enable the transfer of a person, and is a bridge body on which a person can walk and the tip of the bridge body. A tip fixing member that is installed on the side to fix the bridge body to the offshore wind power generation facility, and a bridge that is installed at the bottom of the bridge body and on the ship to keep the bridge body horizontal in response to the shaking of the ship. A main body control unit is provided, and the bridge main body control unit is characterized by including a ball joint portion that supports the bridge main body and a bridge main body buffer portion that cushions the swing of the bridge main body.

In the transfer support device of the present invention, in a state where the bridge body is bridged and fixed from the ship to the offshore wind power generation facility, the bridge body control unit makes the bridge body horizontal in response to the shaking of the ship due to the influence of marine weather. By controlling to hold the ship, it is possible to transfer people in a stable and safe manner. In other words, it reduces the load on the bridge body fixed to the offshore wind power generation facility to maintain a stable fixed state, and suppresses the shaking and tilting of the bridge body, enabling stable and safe transfer of people. .. Further, since the transfer support device of the present invention mainly uses mechanical control, it is easy and inexpensive to manufacture and maintain. Further, since the control unit is compactly integrated in one place and has a simple structure, it can be mounted on a wide variety of ships such as small ships.

Specific examples of the ship equipped with the transfer support device of the present invention include an access ship (transfer ship) that transports people to an offshore wind power generation facility. The transfer support device may be a ship-integrated type attached at the time of manufacturing a ship, or may be a retrofit type attached to an existing ship. The installation location of the transfer support device on the ship is not particularly limited and may be on the bow side, the stern side, or the like, but is usually on the bow side.

Hereinafter, in the present specification, the transfer support device of the present invention will be described based on the state of being mounted on a ship. Further, in a state where the transfer support device of the present invention is bridged from a ship to an offshore wind power generation facility, the tip side of the bridge body (offshore wind power generation facility side) may be referred to as the front, and the base end side of the bridge body may be referred to as the rear. ..

[Bridge body]
The main body of the bridge is a long bridge structure that straddles between the ship and the offshore wind power generation facility when the bridge is bridged from the ship to the offshore wind power generation facility, and a person can walk on the bridge. The bridge body may be provided with balustrades and handrails.

The width of the bridge body can be appropriately set depending on the size of the ship and the like, but is preferably 500 to 2000 mm, more preferably 600 to 1200 mm. The length thereof (the length at the time of maximum extension in the case of the movable type described later) is usually 1000 to 5000 mm, preferably 2000 to 3500 mm, and more preferably 2500 to 3000 mm.

The bridge body may be immovable with a constant length, but it is preferably movable with a movable part that can move forward and backward. That is, it is preferable that the bridge body of the present invention is provided with an advancing / retreating mechanism capable of advancing / retreating in the front-rear direction. As a result, for example, the distance from the tip of the bridge body to the berthing member can be adjusted while the fender at the tip (bow) of the ship is in contact with the berthing member of the offshore wind power generation equipment, making it compact when not in use. Can be stored in. Examples of the bridge body provided with the advancing / retreating mechanism of the present invention include a bridge body board and a bridge body slide plate provided on the bridge body board via rails. A hydraulic, pneumatic, electric, or other actuator can be used to drive the advancing / retreating mechanism.

[Tip fixing member]
The tip fixing member is provided on the tip side of the bridge body and is a member for fixing the bridge body to the offshore wind power generation facility. Normally, offshore wind power generation equipment is provided with a berthing member such as a pole in order to berth (berth) a ship, and the tip fixing member is fixed to this berthing member to stabilize the bridge body. Let me.

The tip fixing member may be provided directly on the bridge body, but is preferably provided indirectly via a connecting member. The connecting member is not particularly limited as long as it supports the tip fixing member and the bridge body so as to be rotatable in at least the pitch direction, and examples thereof include a hinge joint and a ball joint. As a result, even when the ship shakes greatly, the flexible operation of the bridge body reduces the load on the tip fixing member, and the tip fixing member can be stably fixed to the offshore wind power generation facility. , The shaking of the bridge body can be suppressed. In particular, a ball joint is preferable because it can flexibly support the tip fixing member and the bridge body in any of the yaw direction, the roll direction, and the pitch direction.

The tip fixing member is preferably supported by the tip of the bridge body so as to be rotatable in at least the pitch direction, but is limited by a member that suppresses at least one rotation in the pitch direction (tip fixing member restraining portion). Is preferable. As a result, it is possible to reduce the load on the tip fixing member due to the large shaking of the ship. The tip fixing member restraining portion is not particularly limited, but is, for example, provided at the lower tip of the bridge body and abuts on the lower surface or the rear surface of the tip fixing member to rotate the tip fixing member downward in the pitch direction. Examples thereof include those provided with a tip rotation suppressing member (buffer member) that suppresses movement and absorbs a load due to rotation of the tip fixing member. When the tip fixing member is supported by the ball joint, the tip fixing member suppressing portions are provided on the left and right sides of the ball joint and abut against the lower surface of the tip fixing member in the downward direction in the pitch direction of the tip fixing member. And those provided with a tip rotation suppressing member (buffer member) that suppresses rotation in the roll direction.

It is preferable that the tip fixing member is provided with a gripping means for gripping the pier member provided in the offshore wind power generation facility. The gripping means grips the berthing member provided in the offshore wind power generation facility for berthing the ship, and the shape thereof is not particularly limited as long as it corresponds to the shape of the berthing member. However, for example, when the landing member is two poles, it is preferable that each pole can be gripped. Specifically, for example, the gripping means of the present invention presses and holds a central member extending over two poles of an offshore wind power generation facility and two poles provided at both ends of the central member from the inside between the poles. It can be mentioned that it has a gripping portion for gripping. A hydraulic, pneumatic, electric, or the like actuator can be used to drive the grip portion for pressing and holding the pole.

[Bridge body control unit]
The bridge body control unit is provided at the bottom of the bridge body and on the ship to keep the bridge body in a horizontal state in response to the shaking of the ship, and the ball joint part that supports the bridge body and the bridge. It is provided with a bridge main body cushioning portion that cushions the swing of the main body. As a result, with the bridge body bridged and fixed from the ship to the offshore wind power generation facility, the movement (movement in all directions including the three directions of yaw direction, roll direction and pitch direction) caused by the shaking of the ship is performed in one place. It is possible to control the bridge body mechanically in response to the shaking of the ship. That is, it is possible to suppress the shaking of the bridge body due to the shaking of the ship, and it is possible to reduce the load applied to the tip fixing member.

[Ball joint part]
The ball joint portion is not particularly limited as long as it can support the bridge body, and includes a stud portion, a ball stud including a ball portion connected to the stud portion, and a ball portion of the ball stud. It can be exemplified that the ball stud is housed in a spherical contact state and the ball stud is provided with a swingably connected socket. As the installation mode of the ball joint portion, the ball stud may be fixed to the ship (base) and the socket may be fixed to the bridge body, or the ball stud may be fixed to the bridge body and the socket may be installed. It may be fixed to a ship (base). With such a compact and simple configuration, the bridge body can be controlled accurately.

(Ball stud)
The ball stud includes a rod-shaped stud portion and a spherical ball portion connected to the stud portion. The material of the ball stud is not particularly limited, and examples thereof include metal and synthetic resin, and metal is preferable. The size of the ball portion can be appropriately set depending on the size of the bridge body and the like. For example, the diameter is 100 to 1500 mm, preferably 200 to 1200 mm, and more preferably 300 to 600 mm. The overall length of the ball stud can be appropriately set depending on the size of the bridge body and the like, and is, for example, 200 to 3000 mm, preferably 400 to 2000 mm, and more preferably 500 to 1000 mm.

(socket)
The socket accommodates the ball portion of the ball stud in a spherical contact state inside the socket, and is swingably connected to the ball stud. The material of the socket is not particularly limited, and examples thereof include synthetic resin, metal, natural rubber, wood, and combinations thereof, and synthetic resin or a combination of synthetic resin and metal is preferable.

[Bridge body shock absorber]
The bridge body cushioning portion is not particularly limited as long as it cushions the swing of the bridge body. An example may be mentioned in which an elastic buffer member (restoration buffer member) is provided, which is installed on a ship and abuts on the lower surface of the bridge body to cushion the swing of the bridge body. As a result, it is possible to suppress the shaking of the bridge body due to the fluctuation of the ship, and it is possible to reduce the load on the tip fixing member. Examples of the elastic cushioning member include springs, rubbers, cylinders (restoration cylinders, elastic cylinders, etc.) and dampers (restoration dampers, elastic dampers, etc.), and these may be used in combination. A plurality of elastic cushioning members may be provided at predetermined intervals. Specifically, for example, the bridge body shock absorber has at least three elastic cushioning members connected to the ship and the bridge body at equal intervals around the ball joint, or the end of the bridge body. It can be mentioned that at least four are provided in. The bridge main body cushioning portion may be provided with a horizontal control member that controls the bridge main body to be kept in a horizontal state in place of the elastic cushioning member or in addition to the elastic cushioning member, and may be provided as a horizontal control member. Can be mentioned as a control cylinder, a control damper, and the like.

[Auxiliary buffer]
It is preferable that the bridge body control unit further includes an auxiliary buffer unit that cushions a large swing of the bridge body. The auxiliary cushioning portion includes a tubular body that covers at least the upper portion of the ball joint portion that supports the bridge body, and a tubular body receiving cushioning member provided on the ship below the tubular body. I can mention things. While the above-mentioned bridge body shock absorber cushions a small swing of the bridge body (for example, an inclination of 10 ° or less), the bridge body is kept in a horizontal state in response to the swing of the ship. The auxiliary shock absorber cushions the swing of the bridge body by abutting the tubular body with the tubular body receiving cushioning member when the bridge body swings significantly (for example, tilts exceeding 10 °). This makes it possible to prevent sudden fluctuations and damage to the bridge body (device). Examples of the tubular body receiving and cushioning member include rubber, synthetic resin (urethane resin, nylon resin, etc.) and the like.

[Base]
The bridge body control unit may be directly fixed on the ship, or may be indirectly fixed via a base. The fixing place of the base ship is not particularly limited, and may be either the bow side, the stern side, or the like, but the bow side is preferable. The method of fixing the base is not particularly limited, and may be a method of integrally fixing the base with the ship or a method of fixing the base to the ship in a detachable manner. Specific examples thereof include a fixing method using fasteners such as bolts and nuts, and a fixing method by welding. Further, in the case of the method of detachably fixing to a ship, it is also possible to provide a means of transportation such as wheels at the lower part of the base and make the transfer support device portable.

[Auxiliary support]
The transfer support device of the present invention may include an auxiliary support portion that supports the bridge body and / or the tip fixing member. As a result, the overall balance of the bridge body and / or the tip fixing member can be balanced, and the control of the bridge body and / or the tip fixing member corresponding to the shaking of the ship can be strengthened.

Next, a method (operation) of using the transfer support device of the present invention will be described.
In the transfer support device of the present invention, the offshore wind power generation facility floating in the ocean is approached and berthed, for example, the fender at the tip of the ship is in contact with the berthing member of the offshore wind power generation facility. The bridge body is bridged and fixed to the crosspiece member via the tip fixing member.

Subsequently, the user climbs onto the bridge body, walks, and moves to the offshore wind power generation facility. In a state where the bridge body is fixed to the landing member via the tip fixing member, the ball joint portion of the bridge body control unit supports the bridge body, and the bridge body shock absorber cushions the swing of the bridge body. Then, the bridge body is kept horizontal in response to the shaking of the ship. Furthermore, the load on the tip fixing member due to the shaking of the ship can be dispersed, the tip fixing member can be more securely fixed, and it is possible to prevent the tip fixing member from coming off from the pier and the device from being damaged. can.

As described above, the transfer support device of the present invention has three directions (yaw direction, roll direction and pitch direction) caused by the shaking of the ship in a state where the bridge body is bridged and fixed from the ship to the offshore wind power generation facility. By mechanically controlling the movement in all directions including) in one place, it is possible to control the bridge body to be kept in a horizontal state in response to the shaking of the ship, and the user is stable. It is possible to move between ships and offshore wind farms safely and securely.

Hereinafter, an embodiment of the transfer support device of the present invention will be specifically described with reference to the drawings, but the present invention is not limited to the present embodiment.

Here, FIG. 1 is a diagram showing a state in which a ship equipped with a transfer support device according to an embodiment of the present invention approaches an offshore wind power generation facility. 2A and 2B are schematic explanatory views of a transfer support device according to an embodiment of the present invention, FIG. 2A is a schematic plan view of the transfer support device, and FIG. 2B is a schematic side view of the transfer support device. FIG. 3 is a schematic plan enlarged view of a tip fixing member in a transfer support device according to an embodiment of the present invention, (a) shows a state immediately before being fixed to an offshore wind power generation facility, and (b) is an offshore wind force. Shows the state fixed to the power generation equipment. 4A and 4B are schematic plan views of a state in which a bridge body of a transfer support device according to an embodiment of the present invention is fixed to an offshore wind power generation facility via a tip fixing member, and FIGS. 4A to 4C are ships. It is explanatory drawing when is swayed in the yaw direction. 5A and 5B are schematic rear views of a state in which the bridge body of the transfer support device according to the embodiment of the present invention is fixed to the offshore wind power generation facility via a tip fixing member, and FIGS. 5A to 5C are ships. It is explanatory drawing when is swayed in the roll direction. 6A and 6B are schematic side views of a state in which a bridge body of a transfer support device according to an embodiment of the present invention is fixed to an offshore wind power generation facility via a tip fixing member, and FIGS. 6A to 6C are ships. It is explanatory drawing when is swayed in the pitch direction. 7 (a) and 7 (b) are schematic explanatory views of a person's transfer work using the transfer support device according to the embodiment of the present invention. It should be noted that FIGS. 5 and 6 are described so that a part of the bridge body cushioning portion (spring member) arranged between the ship and the bridge body can be omitted for easier understanding.

As shown in FIGS. 1 and 7, the transfer support device 1 according to the embodiment of the present invention is mounted on the access ship 2 and bridges from the access ship 2 to the offshore wind power generation facility 3 to enable the transfer of people. It is a device to do.

As shown in FIG. 2, the transfer support device 1 according to the embodiment of the present invention is provided on the bridge main body 10 and the tip side of the bridge main body 10, and the tip fixing is provided to fix the bridge main body 10 to the offshore wind power generation facility 3. It includes a member 12 and a bridge body control unit 14 provided at the lower part of the bridge body 10 and fixed on the access ship 2. Further, the bridge main body control unit 14 is fixed to the bow side on the access ship 2 via the base 16 (see FIG. 7).

As shown in FIG. 2, the bridge main body 10 is a long plate-shaped member, and is configured to straddle between the access ship 2 and the offshore wind power generation facility 3 and have a bridge structure on which a person can walk. ing. The bridge body 10 has a bridge body board 18 having a length of about 1000 mm and a width of about 600 mm as an advancing / retreating mechanism, and a bridge body slide having a length of about 1800 mm and a width of about 600 mm provided on the bridge body board 18 via a rail 20. It is equipped with a plate 22 and is driven by an actuator 24 so that it can move forward and backward. The maximum extension length of the bridge body 10 is about 2600 mm.

As shown in FIG. 3, the tip fixing member 12 includes a pair of gripping means 28 for gripping two poles (piers) 26a and 26b provided in the offshore wind power generation facility 3. The gripping means 28 presses and sandwiches the

poles

26a and 26b from the inside between the 26a and 26b on the lateral rectangular parallelepiped rod-shaped member 30 extending over the

poles

26a and 26b of the offshore wind power generation facility 3 and both ends on the front surface side of the rod-shaped member 30. It has a gripping portion 32 for gripping. The grip portion 32 is driven by the actuator 34.

The tip fixing member 12 includes a hinge joint 36 as a connecting member that rotatably supports the bridge body 10 in the pitch direction. As a result, even when the sway of the ship 2 is large, the load applied to the tip fixing member 12 can be reduced by the flexible operation of the bridge main body 10, and the sway of the bridge main body 10 can be suppressed. Further, as shown in FIG. 2, the bridge main body 10 is provided at the lower portion of the tip thereof, abuts on the rear surface of the tip fixing member 12, suppresses the downward rotation of the tip fixing member 12 in the pitch direction, and suppresses the downward rotation of the tip fixing member 12 at the tip. An elastic rod member 38 that absorbs a load due to rotation of the fixing member 12 is provided.

As shown in FIG. 2, the bridge body control unit 14 is provided at the lower part of the bridge body 10 and is fixed on the access ship 2, and the ball joint unit 40 supports the bridge body 10 in response to the shaking of the access ship 2. And the bridge main body cushioning portions 42 (42a to 42d) for cushioning the swing of the bridge main body 10. As a result, in a state where the bridge main body 10 is bridged and fixed from the access ship 2 to the offshore wind power generation facility 3, all movements (for example, the yaw direction, the roll direction, and the pitch direction) caused by the shaking of the access ship 2 are included. The movement in the direction) can be mechanically controlled at one place, and the bridge body 10 can be controlled to be kept in a horizontal state in response to the shaking of the access ship 2.

As shown in FIG. 2, the base 16 is a plate-shaped member having a length of about 1200 mm and a width of about 1200 mm, and the ball joint portion 40 and the bridge main body buffer are placed on the access ship 2 via the base 16. A portion 42 is provided. The distance from the upper surface of the base 16 to the lower surface of the bridge body substrate 18 is about 800 mm.

As shown in FIG. 2B, the ball joint portion 40 has a metal rod-shaped stud portion 44 whose one end is fixed to the bridge body 10 and a metal spherical surface connected to the other end of the stud portion 44. It is provided with a ball stud 48 including the ball portion 46 of the above, and a socket 50 in which the ball portion 46 of the ball stud 48 is housed in a spherical contact state and is swingably connected to the ball stud 48.

As shown in FIG. 2, the bridge main body shock absorber 42 is four spring members 42a to 42d connected between the access ship 2 and the bridge main body 10 and arranged at equal intervals around the ball joint portion 40. ..

Next, the operation when the transfer support device 1 is bridged to the offshore wind power generation facility 3 will be described.

FIG. 4 shows a schematic plan view of the tip fixing member 12 of the transfer support device 1 in a state where the bridge main body 10 is fixed to the offshore wind power generation facility 3.
First, as shown in FIG. 4B, in the state immediately after the transfer support device 1 is bridged to the offshore wind power generation facility 3, the access ship 2 faces the front (offshore wind power generation facility 3 side), and the bridge body. 10 is also in a state of facing the front.

As shown in FIG. 4 (a), when the access vessel 2 tilts counterclockwise in the yaw direction due to fluctuations in the sea surface such as waves and swells, or as shown in FIG. 4 (c), clockwise in the yaw direction. Even in the case of tilting to, the ball joint portion 40 and the bridge body cushioning portion 42 swing the bridge body 10 in the yaw direction, and the swing of the bridge body 10 is suppressed without imposing a load on the tip fixing member 12. The bridge body 10 is held in a horizontal state while facing the front.

FIG. 5 shows a schematic rear view of the tip fixing member 12 of the transfer support device 1 in a state where the bridge main body 10 is fixed to the offshore wind power generation facility 3. In FIG. 5, the spring member 42b arranged between the ship 2 and the bridge body 10 is omitted.
As shown in FIG. 5B, in the state immediately after the transfer support device 1 is bridged to the offshore wind power generation facility 3, the access ship 2 is held in the horizontal state and the bridge body 10 is held in the horizontal state. There is.

On the other hand, as shown in FIG. 5 (a), when the access vessel 2 tilts counterclockwise in the roll direction due to fluctuations in the sea level such as waves and swells, or as shown in FIG. 5 (c), in the roll direction. Although it may be tilted clockwise, even if it is tilted in this way, the ball joint portion 40 and the bridge body cushioning portion 42 suppress the shaking of the bridge body 10 without imposing a load on the tip fixing member 12, and the bridge. The main body 10 is held in a horizontal state. At this time, the spring members 42a to 42d support the bridge body 10 from below to suppress swinging, and reduce the load applied to the tip fixing member 12.

FIG. 6 shows a schematic side view of the tip fixing member 12 of the transfer support device 1 in a state where the bridge main body 10 is fixed to the offshore wind power generation facility 3. In FIG. 6, the spring member 42a arranged between the ship 2 and the bridge body 10 is omitted.
As shown in FIG. 6B, the bridge body 10 is held in a horizontal state immediately after the transfer support device 1 is bridged to the offshore wind power generation facility 3.

On the other hand, as shown in FIG. 6 (a), the tip of the access ship 2 descends due to fluctuations in the sea level such as waves and swells, and as shown in FIG. 6 (c), the tip of the access ship 2 rises. However, even if the bridge body is tilted in this way, the ball joint portion 40 and the bridge body cushioning portion 42 suppress the shaking of the bridge body 10 without imposing a load on the tip fixing member 12, and the bridge body 10 is It is held horizontally. The hinge joint 36 that supports the tip fixing member 12 and the bridge body 10 and the elastic rod member 38 provided on the bridge body 10 also reduce the load applied to the tip fixing member 12 due to the shaking of the access ship 2. , The sway of the bridge body 10 is suppressed, and the bridge body 10 is held horizontally.

Next, the procedure for transferring a person to the offshore wind power generation facility 3 by the access ship 2 on the ocean using the transfer support device 1 will be described.

First, the access ship 2 is brought close to the offshore wind power generation facility 3 floating in the ocean, and the fender 52 at the tip of the access ship 2 is brought into contact with the

poles

26a and 26b of the offshore wind power generation facility 3 to berth (berth). (FIG. 1 and FIG. 7 (a)). Subsequently, the bridge body slide plate 22 of the bridge body 10 of the transfer support device 1 fixed to the bow side of the access ship 2 is advanced, and the two poles of the offshore wind power generation facility 3 are moved by the grip portion 32 of the tip fixing member 12. 26a and 26b are sandwiched and gripped (FIG. 3). Subsequently, the user 54 walks from the access ship 2 on the transfer support device 1 and moves to the offshore wind power generation facility 3 (FIG. 7 (b)). As a result, the transfer work from the access ship 2 to the offshore wind power generation facility 3 is completed.

Further, when returning from the offshore wind power generation facility 3 to the access ship 2, the user 54 walks on the transfer support device 1 from the offshore wind power generation facility 3 and moves to the access ship 2. Subsequently, the tip fixing member 12 that grips the

poles

26a and 26b is released, the bridge body slide plate 22 of the bridge body 10 is retracted to the retreat limit, and the access ship 2 is separated from the offshore wind power generation facility 3.

Next, the transfer support device according to another embodiment of the present invention will be described.
Here, FIG. 8 is a schematic explanatory view of a transfer support device according to another embodiment of the present invention, (a) is a schematic plan view of the transfer support device, and (b) a schematic side view of the transfer support device. Is. 9A and 9B are schematic plan views of the transfer support device according to another embodiment of the present invention, in which FIG. 9A shows a state immediately before being fixed to the offshore wind power generation facility, and FIG. 9B is fixed to the offshore wind power generation facility. Indicates the state of operation. 10A and 10B are schematic plan views of a state in which a bridge body of a transfer support device according to another embodiment of the present invention is fixed to an offshore wind power generation facility via a tip fixing member, and FIGS. 10A to 10C are It is explanatory drawing when the ship sways in the yaw direction. 11A and 11B are schematic rear views of a state in which the bridge body of the transfer support device according to another embodiment of the present invention is fixed to the offshore wind power generation facility via a tip fixing member, and FIGS. 11A to 11C are It is explanatory drawing when the ship sways in the roll direction. 12A and 12B are schematic side views of a state in which the bridge body of the transfer support device according to another embodiment of the present invention is fixed to the offshore wind power generation facility via a tip fixing member, and FIGS. 12A to 12C are It is explanatory drawing when the ship sways in the pitch direction. FIG. 13 is an explanatory view of an auxiliary shock absorber in the transfer support device according to another embodiment of the present invention, and is a schematic rear view of a state in which the ship is greatly shaken in the roll direction.

As shown in FIG. 8, the transfer support device 4 according to another embodiment of the present invention is provided on the bridge main body 110 and the tip side of the bridge main body 110, and the tip for fixing the bridge main body 110 to the offshore wind power generation facility 3. It includes a fixing member 112 and a bridge main body control unit 114 provided at the lower part of the bridge main body 110 and fixed on the access ship 2. Further, the bridge main body control unit 114 is fixed to the bow side on the access ship 2 via the base 116.

The bridge main body 110 is a long plate-shaped member, and is configured to have a bridge structure that straddles between the access ship 2 and the offshore wind power generation facility 3 and allows people to walk on the bridge body 110. The bridge body 110 has a bridge body board 118 having a length of about 1800 mm and a width of about 800 mm as an advancing / retreating mechanism, and a bridge body slide having a length of about 2200 mm and a width of about 800 mm provided on the bridge body board 118 via a rail 120. It is equipped with a plate 122, which is driven by an actuator 124 and can move forward and backward. The maximum extension length of the bridge body 10 is about 3000 mm.

As shown in FIG. 9, the tip fixing member 112 includes a pair of gripping means 128 for gripping the two poles (piering members) 126a and 126b provided in the offshore wind power generation facility 3. The gripping means 128 is provided from the inside between the central flat plate member 130 extending over the

poles

126a and 126b of the offshore wind power generation facility 3 and the

poles

126a and 126b rotatably provided at both ends of the front side of the central flat plate member 130 in the horizontal direction. It has

grip portions

132a and 132b that press and pinch and grip the

poles

126a and 126b. The

grip portions

132a and 132b rotate due to expansion and contraction of the actuator 134.

When fixing the tip fixing member 112 to the offshore wind power generation facility 3, first, as shown in FIG. 9A, the pole pressing portions 135a provided on the tip fixing member 112 with respect to the

poles

126a and 126b, 135b comes into contact. Subsequently, as shown in FIG. 9B, the grip portion 132 rotates outward due to the extension of the actuator 134, and the

pole pressing portions

135a and 135b press and hold the

poles

126a and 126b from the inside between the

poles

126a and 126b. It is fixed by.

As shown in FIGS. 8 and 9, the tip fixing member 112 is provided with a ball joint 136 as a connecting member for supporting the bridge main body 110 in the center thereof. As a result, even when the sway of the ship 2 is large, the load applied to the tip fixing member 112 can be reduced by the flexible operation of the bridge main body 110, and the sway of the bridge main body 110 can be suppressed. Further, since the tip fixing member 112 and the bridge body 110 can be flexibly supported in any of the yaw direction, the roll direction, and the pitch direction, the tip fixing member 112 grips the berthing member 26 of the offshore wind power generation facility 3. It is possible to stably maintain the state. Further, the bridge body 110 is used as a tip rotation suppressing member that abuts on the left and right sides of the ball joint 136 and abuts on the lower surface of the tip fixing member 112 to suppress the rotation of the tip fixing member 112 in the downward and roll directions in the pitch direction. It is provided with

rubber cushion members

138a and 138b.

Further, as shown in FIGS. 8 and 9, the bridge main body control unit 114 is provided at the lower part of the bridge main body 110 and is fixed on the base 116 of the access ship 2, and the bridge responds to the shaking of the access ship 2. It includes a ball joint portion 140 that supports the main body 110, and a bridge main body cushioning portion 141 that cushions the swing of the bridge main body 110. As a result, in a state where the bridge main body 110 is bridged and fixed from the access ship 2 to the offshore wind power generation facility 3, all movements (for example, the yaw direction, the roll direction, and the pitch direction) caused by the shaking of the access ship 2 are included. The movement in the direction) can be mechanically controlled at one place, and the bridge body 110 can be controlled to be kept in a horizontal state in response to the shaking of the access ship 2.

As shown in FIGS. 8 and 9, the base 116 is a plate-shaped member having a length of about 1900 mm and a width of about 900 mm, and the ball joint portion 140 and the ball joint portion 140 are placed on the access ship 2 via the base 116. A bridge body cushioning portion 141 is provided. The distance from the upper surface of the base 116 to the lower surface of the bridge body board 118 is about 500 mm.

As shown in FIG. 8B, the ball joint portion 140 includes a ball stud 148 having a metal rod-shaped stud portion 144 and a metal spherical ball portion 146 connected to the stud portion 144, and a ball. The ball portion 146 of the stud 148 is housed therein in a spherical contact state, and the ball stud 148 is provided with a swingably connected socket 150. The ball stud 148 is fixed to the base 116, and the socket 150 is It is fixed to the bridge body 110.

As shown in FIGS. 8A and 8B, the bridge body shock absorber 141 includes cylinders 143a to 143d and connecting members 142a to 142d made of chains or wires connected to the cylinders 143a to 143d. Cylinders 143a to 143d are attached to the base 116 of the access ship 2, and connecting members 142a to 142d are attached to the edges of the bridge body 110 (on the left and right sides of the front and rear ends of the bridge body 110). ing. The cylinders 143a to 143d are controlled to return the connecting members 142a to 142d pulled by the swing of the bridge body 110 to their original positions.

As shown in FIG. 8B, the bridge body control unit 114 further includes an auxiliary buffer unit 156. The auxiliary cushioning portion 156 is provided below the bridge main body 110, and has a tubular body 152 that covers the periphery of the upper part of the ball joint portion 140 and a tubular body receiving buffer provided on a base 116 below the tubular body 152. It includes a member 154. The cushioning member 154 is a member whose surface is reinforced by applying a coating agent such as polyurea to an elastic foamed resin. The auxiliary buffer portion 156 can cope with a large shaking of the ship 2.

Next, the operation when the transfer support device 4 is bridged to the offshore wind power generation facility 3 will be described.

FIG. 10 shows a schematic plan view of the tip fixing member 112 of the transfer support device 4 in a state where the bridge main body 110 is fixed to the offshore wind power generation facility 3.
First, as shown in FIG. 10B, in the state immediately after the transfer support device 4 is bridged to the offshore wind power generation facility 3, the access ship 2 faces the front (offshore wind power generation facility 3 side), and the bridge main body. 110 is also in a state of facing the front.

As shown in FIG. 10 (a), when the access vessel 2 tilts counterclockwise in the yaw direction due to fluctuations in the sea surface such as waves and swells, or as shown in FIG. 10 (c), clockwise in the yaw direction. Even in the case of tilting to, the ball joint portion 140 and the bridge main body cushioning portion 141 cause the bridge main body 110 to swing in the yaw direction, suppressing the shaking of the bridge main body 110 without imposing a load on the tip fixing member 112. The bridge body 110 is held in a horizontal state while facing the front.

FIG. 11 shows a schematic rear view of the tip fixing member 112 of the transfer support device 4 in a state where the bridge main body 110 is fixed to the offshore wind power generation facility 3.
As shown in FIG. 11B, in the state immediately after the transfer support device 4 is bridged to the offshore wind power generation facility 3, the access ship 2 is held in the horizontal state and the bridge body 110 is held in the horizontal state. There is.

On the other hand, as shown in FIG. 11 (a), when the access vessel 2 tilts counterclockwise in the roll direction due to fluctuations in the sea level such as waves and swells, or as shown in FIG. 11 (c), in the roll direction. Although it may be tilted clockwise, even if it is tilted in this way, the ball joint portion 140 and the bridge body cushioning portion 141 suppress the shaking of the bridge body 110 without imposing a load on the tip fixing member 112, and the bridge. The main body 110 is held in a horizontal state. At this time, the cylinders 143a to 143d and the connecting members 142a to 142d support the bridge body 110 from below to suppress swinging, and reduce the load applied to the tip fixing member 112.

FIG. 12 shows a schematic side view of the tip fixing member 112 of the transfer support device 4 in a state where the bridge main body 110 is fixed to the offshore wind power generation facility 3.
As shown in FIG. 12B, the bridge body 110 is held in a horizontal state immediately after the transfer support device 4 is bridged to the offshore wind power generation facility 3.

On the other hand, as shown in FIG. 12 (a), the tip of the access ship 2 descends due to fluctuations in the sea level such as waves and swells, and as shown in FIG. 12 (c), the tip of the access ship 2 rises. However, even if the bridge body is tilted in this way, the ball joint portion 140 and the bridge body cushioning portion 141 suppress the shaking of the bridge body 110 without imposing a load on the tip fixing member 112, and the bridge body 110 It is held horizontally. The ball joint 136 that supports the tip fixing member 112 and the bridge body 110 and the cushion member 138 provided on the bridge body 110 also reduce the load applied to the tip fixing member 112 due to the shaking of the access ship 2. The shaking of the bridge body 110 is suppressed, and the bridge body 110 is held horizontally.

FIG. 13 is an explanatory view of the auxiliary shock absorber 156 of the bridge main body control unit 114 of the transfer support device 4, and shows a schematic rear view of a state in which the ship 2 violently shakes in the roll direction.
As shown in FIG. 13, there is a case where the access vessel 2 is greatly tilted due to fluctuations in the sea level such as waves and swells (FIG. 13 is a case where the access vessel is tilted violently counterclockwise in the roll direction). However, when the tubular body 152 of the auxiliary buffer portion 156 comes into contact with the tubular body receiving buffer member 154, the swing of the bridge body 110 is buffered, and the sudden fluctuation of the bridge body 110 is suppressed to prevent damage. can do.

The transfer support device of the present invention is industrially useful because it can be mounted on a ship and used.

1 Transfer support device (transfer support device according to one embodiment)
2 Access ship (ship)
3 Offshore wind power generation equipment 4 Transfer support device (transfer support device according to other embodiments)
10 Bridge body 12 Tip fixing member 14 Bridge body control unit 16 Base 18 Bridge body board 20 Rail 22 Bridge body slide plate 24 Actuator 26 Pole (pier)
28 Gripping means 30 Rod-shaped member 32 Gripping part 34 Actuator 36 Hinge joint 38 Elastic rod member 40 Ball joint part 42 Bridge body cushioning part (spring member)
44 Stud part 46 Ball part 48 Ball stud 50 Socket 52 Fender 54 User 110 Bridge body 112 Tip fixing member 114 Bridge body control unit 116 Base 118 Bridge body board 120 Rail 122 Bridge body slide plate 124 Actuator 126 Pole (pier) )
128 Gripping means 130 Central flat plate member 132 Gripping part 134 Actuator 135 Pole pressing part 136 Ball joint 138 Cushion member 140 Ball joint part 141 Bridge body Buffer part 142 Connecting member 143 Cylinder 144 Stud part 146 Ball part 148 Ball stud 150 Socket 152 Cylindrical Body 154 Cylindrical body receiving shock absorber 156 Auxiliary shock absorber

Claims

It is a transfer support device that is mounted on a ship and bridges from the ship to an offshore wind power generation facility to enable the transfer of people.
The main body of the bridge where people can walk and
A tip fixing member provided on the tip side of the bridge body and fixing the bridge body to the offshore wind power generation facility, and
A bridge body control unit provided at the lower part of the bridge body and on the ship to hold the bridge body in a horizontal state in response to the shaking of the ship.
Equipped with
The bridge body control unit
A transfer support device including a ball joint portion that supports the bridge body and a bridge body cushioning portion that cushions the swing of the bridge body.
The ball joint portion
A ball stud including a stud portion and a ball portion connected to the stud portion, and a ball stud.
A socket in which the ball portion of the ball stud is housed in a spherical contact state and is swingably connected to the ball stud,
The transfer support device according to claim 1, further comprising.
The transfer support device according to claim 1 or 2, wherein the bridge main body cushioning portion includes an elastic cushioning member connected to the ship and the bridge main body.
The transfer support device according to any one of claims 1 to 3, wherein the bridge main body is provided with an advancing / retreating mechanism capable of advancing / retreating in the front-rear direction thereof.
Claim 1 is characterized in that the tip fixing member is rotatably supported by the tip of the bridge body in the pitch direction, and at least one rotation in the pitch direction is suppressed by the tip fixing member suppressing portion. The transfer support device according to any one of 4 to 4.
The transfer support device according to claim 5, wherein the tip fixing member is supported by a ball joint.
The tip fixing member suppressing portion is provided on the left and right sides of the ball joint, and includes a tip rotation suppressing member that abuts on the lower surface of the tip fixing member and suppresses rotation of the tip fixing member in the pitch direction and the roll direction. The transfer support device according to claim 6, wherein the transfer support device is characterized by the above.
The bridge body control unit further includes an auxiliary buffer unit that cushions a large swing of the bridge body.
The auxiliary cushioning portion includes a tubular body that covers at least the upper portion of a ball joint portion that supports the bridge body, and a tubular body receiving cushioning member provided on a ship below the tubular body. The transfer support device according to any one of claims 1 to 7, wherein the transfer support device is characterized by the above.
A ship equipped with the transfer support device according to any one of claims 1 to 8.