JP6821877B2 - Ship mooring device - Google Patents

Description

The present invention relates to a mooring device for mooring a ship on a quay, and more particularly to a ship mooring device for preventing an unexpected drift of a ship even when the sea level rises abnormally due to the occurrence of a large tsunami or the like.

Vessels that enter the port for berthing are stopped by tying mooring ropes such as ropes and wire ropes to mooring pillars protruding from the quay or pier to prevent them from leaving the shore. In general, berthing facilities such as quays are designed to have a height that does not hinder the boarding and alighting of passengers on ships and the handling of cargo even if the water level changes due to the rise and fall of the sea level according to the ebb and flow. Further, even when a large wave covers the quay when a spring tide and a typhoon overlap, there is no problem in mooring a ship moored by a mooring rope on the mooring column. A fender is attached to the berthing facility to prevent damage to the ship and the berthing facility.

By the way, it is fresh in my memory that in recent years, a large tsunami that far exceeded expectations occurred with the occurrence of a large earthquake, causing great damage. When the sea level rises abnormally due to such a large tsunami, the vessels moored by the mooring rope on the mooring column rise as the sea level rises. If the sea level rises more than expected, the vessel may capsize.

2 and 3 show a state in which the ship S is moored by the mooring rope 22 on the mooring column 21 provided on the quay G. FIG. 2 shows normal times, and the ship S also moves up and down according to the rise and fall of the sea level L due to the ebb and flow of the tide, but the height of the quay G does not hinder boarding and alighting and cargo handling with the ship S. Has been done. On the other hand, when the sea level L rises to a height higher than expected due to a storm or a large tsunami and far exceeds the height of the quay G, as shown in FIG. 3, the ship S is on the sea level L. Ascending exceeds the height of the quay G. Since the mooring rope 22 has a length sufficient to maintain the state in which the ship S is berthed, if the sea level L rises abnormally, the space between the mooring column 21 and the sea level L There is a risk that the distance between the two will be larger than the length of the mooring rope 22. In such a case, as shown in FIG. 3, the ship S may be restrained by the mooring rope 22, and the side on which the mooring rope 22 is suspended may be pulled in and capsized. In addition, the tense mooring rope 22 may break, and the ship S may be carried by the tsunami and drift, or may be carried to land and stranded.

As a ship mooring device for preventing a ship from overturning when the sea level rises abnormally, a ship mooring device for connecting a berthed ship and a bollard with a mooring rope accommodates the base of the mooring pillar to which the mooring rope is connected. A holding hole is formed in the quay, a continuous accommodating hole is formed in the retaining hole, an extension member is accommodated in the accommodating hole, the tip of the extension member is fixed to the base of the mooring column, and the extension member is fixed. The base end of the bollard is fixed to an arbitrary part, and the length of the extension material extending from the quay is made larger than the distance between the sea surface and the quay that has risen to an abnormal height. Therefore, a ship mooring device has been proposed in which a holding means for holding the base of the mooring bollard is provided in the holding hole, and when seawater invades the holding hole, the holding means is released to free the mooring pillar. (See Patent Document 1).

Japanese Unexamined Patent Publication No. 2015-382774

In the ship mooring device disclosed in Patent Document 1, since one end of the mooring rope fixed to the ship is moored to the mooring column, the mooring rope may come off from the mooring column depending on the behavior of the sea surface at the time of abnormal rise. There is a risk that the ship will drift.

Further, since the structure is adopted in which the holding means is released by the infiltration of seawater, for example, when the sea level rises abnormally such as a tsunami, the invaded seawater behaves violently and the holding means is released. May prevent it. On the other hand, to reduce the holding force by the holding means, when to be easily released by seawater intrusion, when it becomes a situation where wear waves wharf by storms such as typhoons, released inadvertently holding means There is a risk that the ship will be separated from the quay.

Therefore, the present invention prevents a ship moored on a quay from being restrained by a mooring rope and overturning when the tide level rises abnormally such as a tsunami, or the mooring rope from drifting off the mooring pillar as much as possible. It is intended to provide a ship mooring device capable of.

As a technical means for achieving the above object, the ship mooring device according to the present invention is a ship mooring device for connecting a berthed ship and a bollard arranged on the quay with a mooring rope at an appropriate position on the quay. By restraining the mooring column in a state where the base end portion is suspended and the tip end is engaged with the mooring column and the extension rope is engaged with the mooring column, and the bollard is separated from the mooring column. An engaging member provided so as to be able to engage with the mooring column to free the mooring column, an engaging member operating means for moving the engaging member in a direction of at least disengaging from the mooring column, and an abnormality in the sea surface. It consists of a water level detecting means installed at an appropriate position in relation to the quay where the ship is berthing to detect the water level, and when the sea level rises abnormally and the water level detecting means detects the abnormal water level, the abnormal water level is detected. outputting a detection signal, in response to this abnormal level detection signal, the engaging member actuating means is actuated to disengage the engaging member from the dolphin, it is characterized in that to free the engagement ship pillars.

When the sea level rises abnormally due to the arrival of a large tsunami, the abnormal water level is detected by the water level detecting means. When an abnormal water level detection signal related to the abnormal water level, for example, an electric signal or a signal due to compressed air , is sent from the water level detecting means to the engaging member operating means including an actuator such as a solenoid or an air cylinder, the engaging member operates. The means is activated to disengage the engaging member from the mooring column to release the restraint on the mooring column, leaving it in a free state. Since the rise in sea level raises the moored vessel, the mooring bollard connected to the vessel by the mooring rope is pulled up. At this time, since the mooring column is in a free state, it is pulled up as the ship rises. Since the extension rope is hooked on the mooring column, the extension rope is extended to allow the mooring column to be pulled up, preventing the ship from tipping over and preventing the ship from drifting.

Further, the ship mooring device according to the invention of claim 2 is a ship mooring device that connects a berthed ship and a bollard arranged on the quay with a mooring rope, and the base end portion is anchored at an appropriate position on the quay. , An extension rope whose tip is connected to the mooring column and suspended, a casing that accommodates the mooring column, an engaging member provided on the mooring column so as to be able to engage with the casing, and the engaging member. From at least the engaging member actuating means for moving the bollard away from the casing and the water level detecting means installed at an appropriate position in relation to the quay on which the ship is berthing, which detects the abnormal water level on the sea surface. becomes, sea level abnormally rises and outputs the abnormality level detection signal when the water level detecting means detects an abnormal water level, receives the abnormality level detection signal, the engagement with the engaging member actuating means is operated It is characterized in that the member is separated from the casing to free the mooring column.

When the sea level rises abnormally, the abnormal water level is detected by the water level detecting means, and the abnormal water level detection signal related to the detected abnormal water level is transmitted to the engaging member operating means by the actuator, and the operating of the engaging member operating means , The engaging member is separated from the casing to free the mooring column. When the ship rises with an abnormal water level, the mooring column separates from the casing and rises with the ship via the mooring rope. Since the extension rope is hooked on the mooring column, the extension rope is pulled out and extended. This prevents the vessel from tipping over and drifting.

Further, the ship mooring device according to the invention of claim 3 is characterized in that a rope accommodating portion for accommodating the extension rope is provided under the casing.

Extension rope, for example, those or coordinated with the receiving box or the like is provided on the quay, can be or disposed in the accommodating chamber provided in the lower portion of the casing, which is accommodated by providing a housing portion on the lower side of the casing Is. Since there are no protrusions such as storage boxes on the quay, it does not interfere with work on the quay.

Further, the ship mooring device according to the invention of claim 4 is characterized in that a buoyancy chamber for increasing the buoyancy acting on the mooring column is provided.

By providing a buoyancy chamber such as an air chamber in a part of the mooring column, the buoyancy acting on the mooring column is increased, and the mooring column is smoothly raised. Further, a structure for ensuring buoyancy as a buoyancy chamber can be made by incorporating styrofoam or the like into a part of the mooring column.

Further, the ship mooring device according to the invention of claim 5 is characterized in that the casing is embedded in a quay.

The ship mooring device requires a bollard to be installed on the quay, but if the bollard separates from the quay at an abnormal water level, the structure that restrains the bollard in normal times is on the quay. It does not matter if it is placed in the quay, but by burying it, the structure that hinders the work is eliminated from the quay.

According to the ship mooring device according to the present invention, when it is detected that the sea level rises abnormally and the water level becomes abnormal, the mooring pillar becomes free, so that the mooring pillar also rises with the rising of the ship. Since the extension rope is hooked on the mooring column, the extension rope is pulled out and regulated by the extension rope, so that the ship is prevented from capsizing or drifting, and the ship can be lifted when the sea level rises abnormally. Safety can be ensured.

Further, according to the ship mooring device according to the invention of claim 2, since the structure in which the mooring columns are housed in the casing can be installed on the quay, the installation of the mooring device becomes simple. Further, the engaging member may be arranged on the casing side to engage and disengage from the mooring column, but the engaging member may be arranged on the mooring column to engage and disengage from the casing. is there. When the engaging member is arranged on the casing, a moving space for the engaging member is provided on the casing side. For example, this moving space is bulged to the side of the casing to secure the moving space. The casing becomes large, and the installation space for this mooring device is increased. For this reason, an engaging member is provided on the mooring column side to secure a moving space inside the mooring column.

Further, according to the ship mooring device according to the invention of claim 3, since the extension rope is accommodated in the rope accommodating portion under the casing, the extension rope does not normally hinder the work on the quay.

Further, according to the ship mooring device according to the invention of claim 4, since the mooring column is positively raised, the extension rope is smoothly pulled out, and the tension of the extension rope does not become a resistance, and the ship rises. Is done smoothly.

It is a schematic cross-sectional view explaining the structure of the ship mooring device which concerns on this invention. It is a schematic diagram which shows the state which the ship is moored in the berthing facility by the conventional mooring device. FIG. 2 is a schematic view showing a state in which the sea surface becomes an abnormal water level due to the invasion of a large tsunami or the like in the state shown in FIG.

Hereinafter, the ship mooring device according to the present invention will be specifically described based on the preferred embodiment shown.

FIG. 1 shows a schematic structure of a ship mooring device 1 according to the present invention, which is installed on a quay G, which is a berthing facility for ships. A recess for accommodating the ship mooring device 1 is formed on the quay G, and the casing 2 is embedded in the recess. The casing 2 has an upper flange portion 2b and a lower flange portion 2c formed on each of the upper and lower portions of the casing main body 2a formed in a tubular shape. The upper surface of the upper flange portion 2b is substantially aligned with the upper surface of the quay G. A bush member 3 is fitted inside the casing 2, and the bush member 3 is provided with a bottom plate 3a having a surface substantially coincident with the lower surface of the lower flange 2c of the casing 2. The lower part of the mooring column 4 is housed in the bush member 3.

The dolphin 4 and rope lacing portion 4a tether at the top is lacing is provided, the rope tying portion 4a protrudes from the upper surface of the quay G. An engaging member driving device 5 by an actuator such as a solenoid or an air cylinder is housed under the rope tying portion 4a of the mooring column 4 as an engaging member operating means , and is engaged by the engaging member driving device 5. The joint member 6 appears and disappears from the side surface of the mooring column 4. For the operation described later, at least the engaging member 6 may be able to move from the protruding state in the direction of being buried inside the mooring column 4, but the operation in an emergency may be performed. In order to periodically check the operation in order to secure the engagement member 6, it is preferable that the engaging member 6 can be driven in any of the engaged and disengaged states. Further, each of the bush member 3 and the casing main body 2a is formed with a through hole 3b and a through hole 2d into which the engaging member 6 is inserted. Further, an air chamber 4b is provided as a buoyancy chamber on the lower side of the engaging member driving device 5. Further, a rope accommodating portion 7 accommodating the extension rope 8 is provided on the lower side of the casing 2.

A mooring pillar side hooking portion 4d is attached to the lower surface of the bottom plate 4c of the mooring pillar 4, and the mooring pillar side hooking portion 4d is loosely inserted into the through hole 3c formed in the bottom plate 3a of the bush member 3. Then, the mooring bollard side hooking portion 4d is projected to the rope accommodating portion 7.

A fixed side hooking portion 9 is fixed to the bottom surface of the rope accommodating portion 7. The base end portion of the extension rope 8 is fixed to the fixed side hooking portion 9, and the tip end portion is fixed to the mooring pillar side hooking portion 4c.

The engaging member driving device 5 is installed at an appropriate position to detect the position of the sea surface , and the cable 10 is used as a water level detecting means (not shown) for detecting that the sea level has risen above a predetermined height as an abnormal water level. Connected via. Operating said engagement member driving device 5 by the abnormal water level signal abnormality level is outputted when it is detected by the water level detecting means, to bury the engaging member 6 in a state that protrudes dolphin 4 Move in the direction. When an actuator such as a solenoid or a drive motor is used for the engaging member driving device 5 , the abnormal water level signal is transmitted to the engaging member driving device 5 by an electric signal via the cable 10 . Further , for example, when an actuator such as an air cylinder or a hydraulic cylinder is used for the engaging member driving device 5, the structure is such that working air or hydraulic oil is supplied by using a pipe material such as a pipe or a hose instead of the cable 10. be able to.

Further, a flange portion 4e is provided below the rope splicing portion 4a of the mooring column 4, and the mooring column 4 is placed on the upper flange portion 2b of the casing 2 in a state of being housed in the casing 2. Ru. It should be noted that the seal member 11 is sandwiched between the upper flange portion 2b and the flange portion 4e to prevent water from entering the gap formed between the casing 2, the bush member 3, and the mooring column 4.

In the ship mooring device 1 configured as described above, when a ship berths for mooring, the mooring rope extended from the ship is tied to the rope tying portion 4a of the mooring column 4. In normal times, the sea level rises and falls at a position lower than the upper surface of the quay G even due to ebb and flow and waves, and boarding and alighting of ships and cargo handling are performed stably. Further, even when the tension related to the mooring rope changes due to the behavior of the ship, the mooring column 4 does not separate from the casing 2 because the engaging member 6 is engaged with the casing 2. Therefore, in normal times, the state in which the ship is moored at the quay G via the mooring rope is maintained in the same manner as a normal bollard.

When a ship rises above the quay G due to a large tsunami and an abnormally rising sea level, the abnormal water level is detected by the water level detecting means (not shown), and the detection signal is used for the engaging member driving device 5. Is sent to. Upon receiving the detection signal of the abnormal water level, the engaging member driving device 5 operates to move the engaging member 6 in the direction of being buried in the mooring column 4. As a result, the engaging member 6 is disengaged from the casing 2 and the bush member 3 to be disengaged, so that the mooring column 4 is in a free state and is pulled out from the casing 2. Since the tip of the extension rope 8 is fixed to the mooring column 4, the extension rope 8 is pulled out from the rope accommodating portion 7 as the ship rises or moves. Since the base end portion of the extension rope 8 is fixed to the fixed side hook portion 9 fixed to the bottom surface of the rope accommodating portion 7, the extension rope 8 does not separate from the quay G. Therefore, the ship becomes the behavior is restricted by the range of the length of the extension rope 8, by a suitable one length of the extension rope 8, which prevents the overturning and drifting of the ship, the ship Is allowed to rise and move.

Further, since the air chamber 4b is provided in the mooring column 4, the buoyancy acting on the mooring column 4 becomes large, and the mooring column 4 surely rises upward and separates from the casing 2. For example, when a ship moves and tries to pull up a mooring column 4, if the mooring column 4 is pulled up diagonally upward, it may hinder the detachment from the casing 2, but it rises due to buoyancy. By doing so, it can be reliably separated from the casing 2.

In the ship mooring device according to the present invention, the abnormal water level is detected by the rise of the ship due to the abnormal rise of the sea level, and the detection signal allows the mooring pillar to be released from the restraint and the ship to be detached. It allows the ship to rise and move, and prevents the ship from overturning or drifting, which contributes to the prevention of unexpected damage.

1 Ship mooring device 2 Casing
2d through hole 3 bush member
3b through hole 4 bollard
4a Rope splicing
4b air chamber
4c bottom plate
4d mooring bollard side hook
4e Flange part 5 Engagement member drive device (engagement member actuating means)
6 Engagement member 7 Rope accommodating part 8 Extension rope 9 Fixed side hooking part
10 cables

Claims (5)

In a ship mooring device that connects a berthed ship and a bollard arranged on the quay with a mooring rope.
An extension rope whose base end is hung at an appropriate position on the quay and whose tip is connected to the bollard and hung.
An engaging member provided so as to be able to engage with the mooring column, which restrains the mooring column in a state of being engaged with the mooring column and frees the mooring column by separating from the mooring column.
An engaging member actuating means for moving the engaging member at least in a direction of disengaging from the mooring column.
It consists of a water level detection means installed at an appropriate position in relation to the quay where the ship is berthing, which detects the abnormal water level on the sea surface.
Sea level abnormally rises and outputs the abnormality level detection signal when the water level detecting means detects an abnormal water level, receives the abnormality level detection signal, the engaging member and the engaging member actuating means is actuated A ship mooring device characterized by being separated from the mooring column and freeing the mooring column. In a ship mooring device that connects a berthed ship and a bollard arranged on the quay with a mooring rope.
An extension rope whose base end is hung at an appropriate position on the quay and whose tip is connected to the bollard and hung.
The casing that houses the mooring column and
An engaging member provided on the mooring column so as to be disengaged from the casing,
An engaging member operating means for moving the engaging member at least in a direction of disengaging from the casing,
It consists of a water level detection means installed at an appropriate position in relation to the quay where the ship is berthing, which detects the abnormal water level on the sea surface.
Sea level abnormally rises and outputs the abnormality level detection signal when the water level detecting means detects an abnormal water level, receives the abnormality level detection signal, the engaging member and the engaging member actuating means is actuated A ship mooring device characterized in that the mooring column is freed by being separated from the casing. The ship mooring device according to claim 2, wherein a rope accommodating portion for accommodating the extension rope is provided under the casing. The ship mooring device according to claim 2 or 3, wherein a buoyancy chamber for increasing the buoyancy acting on the mooring column is provided. The ship mooring device according to any one of claims 2 to 4, wherein the casing is embedded in a quay.

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