JP2012116304A - Protection apparatus for mooring line - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a protection apparatus for a mooring line capable of securing safety of an operator or the like even when an accident such as breakage of a mooring line occurs.SOLUTION: The protection apparatus 1 for the mooring line is installed near the mooring line 2 for securing a ship to a pier. The protection apparatus 1 includes a sidewall 10 substantially parallel to the mooring line 2 and a rolling wall 11 extending in a direction separated from the mooring line 2 from the vicinity of an end of the sidewall 10. The protection apparatus 1 includes a protected area that is a space formed by the sidewall 10 and the rolling wall 11.

Description

  The present invention relates to a protection device for a mooring line that protects the safety of an operator from a breakage accident of a mooring line mooring a ship.

  When a ship or offshore platform is moored to a quay or a floating structure, the ship is connected by a mooring line so that it does not leave the quay. FIG. 6 shows a state when the ship is moored on the quay. The ship 3 has a winch 6 called a dredger and mooring winch or a mooring winch. A mooring cable 2 (fiber cable or steel cable) is wound around the winch 6. Note that 4 indicates the bow and 5 indicates the stern.

  Next, mooring work will be described. When the ship 3 touches the quay 31, first, the mooring rope 2 is extended from the winch 6. An operator on the quay side receives the mooring rope 2 that has been fed out and binds it to a projection called a bit 32. Thereafter, the slack of the mooring rope 2 is taken by the winch 6, and a tension having a predetermined strength is applied to the mooring rope 2. The same work is repeated for the plurality of mooring lines 2 to fix the ship 3 to the quay 31 and complete the mooring work.

  When performing the mooring work, at least an operator who operates the winch 6 (hereinafter referred to as an operator) and an operator who instructs the operator of the winch 6 while monitoring the state of the mooring rope 2 (hereinafter referred to as a monitor). ) And a worker on the quay side is required. In the case of a large ship such as a cargo ship, the mooring rope 2 uses a fiber rope (fiber rope) having a diameter of about 50 to 65 mm and a steel cable (wire rope) having a diameter of about 30 to 40 mm.

  A large load is applied to the mooring line 2 by a ship that swings under the influence of a tidal current, a change in tide level, wind, or the like. If excessive tension acts on the mooring line 2, it may break and lead to a major accident. In order to prevent the mooring rope 2 from being broken, a configuration is disclosed in which a monitoring device for monitoring the tension of the mooring rope 2 is installed (see, for example, Patent Document 1). With this configuration, breakage of the mooring rope 2 can be prevented to some extent.

  The above-described mooring rope monitoring device has several problems. First, there is a problem that a breakage accident due to deterioration of the mooring line cannot be prevented. That is, when the tension that the mooring line can withstand becomes small due to deterioration or the like, the mooring line cannot be broken. It is difficult to grasp the state of mooring line deterioration in advance.

  Secondly, it is not possible to prevent a breakage accident of the mooring line that occurs during mooring work. That is, it is difficult to perform mooring work in a state in which the mooring rope monitoring device described in Patent Document 1 is operated. This is because, during mooring work, there is often a case where a great tension is instantaneously applied to the mooring line. During mooring work, many workers work around the mooring line, so if an accident that breaks the mooring line occurs, there is a high possibility that it will lead to a major accident.

JP 2002-21478 A

The present invention has been made in view of the above-described problems, and the purpose of the present invention is to ensure the safety of an operator (especially a supervisor) even when an accident occurs in which a mooring line breaks. It is to provide a protection device for mooring lines.

  A mooring rope protection device according to the present invention for achieving the above object is a mooring rope protection device installed in the vicinity of a mooring rope that fixes a ship to a quay, and the protection device includes the mooring rope and the mooring rope. A side wall portion that is substantially parallel; and a winding wall portion that extends in the direction away from the mooring line from the vicinity of the end portion of the side wall portion, and the protection device includes the side wall portion and the winding wall portion. It has the protection area | region which is the space formed by.

  With this configuration, even when the mooring line breaks, it is possible to prevent the broken mooring line from reaching the worker (monitoring person) who monitors the state of the mooring line in the protection area. This is because the protection device has a protection area where the broken mooring line cannot reach. Therefore, the safety of the worker can be improved.

  In the mooring rope protection apparatus, the side wall portion includes a support column and a side wall plate fixed to the support column, and the entrainment wall unit includes a support column and the entrainment wall plate fixed to the support column. It is characterized by having. With this configuration, the same effects as described above can be obtained.

  In the mooring rope protection apparatus, the side wall plate or the entraining wall plate is configured to be detachable from at least the support column. With this configuration, since the protective device can be removed from the ship deck except during mooring work, it is possible to suppress deterioration in workability such as cargo handling work on the deck.

  According to the protection device for mooring lines according to the present invention, it is possible to provide a protection device for mooring lines that can ensure the safety of workers and the like even when an accident occurs in which the mooring line breaks. .

It is the schematic at the time of arrange | positioning the protection apparatus for mooring ropes of embodiment which concerns on this invention on the ship. It is the schematic which showed the protection device for mooring lines of embodiment which concerns on this invention. It is the top view which showed the plane of the protection device for mooring lines of embodiment which concerns on this invention. It is the top view which showed the plane of the protection apparatus for mooring lines of different embodiment. It is the schematic which showed the state which decomposed | disassembled the protection device for mooring lines of embodiment which concerns on this invention. It is the top view which showed the state which moored the ship to the quay.

  Hereinafter, a protection device for a mooring line according to an embodiment of the present invention will be described with reference to the drawings. In FIG. 1, the elements on larger scale of the bow 4 of the ship 3 are shown. The ship 3 has a winch 6 around which the mooring cable 2 is wound and a lifting machine 7. A protection device 1 is installed along the mooring line 2.

FIG. 2 shows an outline of the protection device 1. The protection device 1 has a side wall 10 installed along the mooring rope 2 and a winding wall 11 connected to the end of the side wall 10 and extending in a direction away from the mooring rope 2. The side wall part 10 has a column 16 standing on the deck of the ship 3 and a side wall plate 12 fixed to the column 16. The winding wall part 11 has a support column 16 and a winding wall plate (first winding wall plate 14 and second winding wall plate 15) fixed to the support column. Moreover, the monitoring hole 13 is formed in the side wall plate 12 and the entraining wall plates 14 and 15. The monitoring hole 13 is for an operator (monitoring person) waiting in the space formed by the side wall part 10 and the entraining wall part 11 to monitor the state of the mooring rope 2. Further, the side wall portion 10 and the entraining wall portion 11 are arranged so that the broken mooring rope 2 does not reach the observer. In addition, metal materials, such as a steel plate, can be used for the side wall board 12, the surrounding wall boards 14 and 15, and the support | pillar 16. Further, in order to reduce the weight of the side wall plate 12 or the like, a plurality of light holes as through holes may be formed in the side wall plate 12 or the like. This light hole can also be used as the monitoring hole 13. That is, the through holes formed in the side wall plate 12 and the like can be used as the monitoring holes 13 and the light holes. Furthermore, the protective device 1 is desirably about 0.5 to 1.5 m in length, about 1.0 to 2 m in width, and about 1.7 to 2.0 m in height. In particular, the height of the protection device 1 is set to a height at which the head of the observer is not exposed.

  FIG. 3 shows a plan view of the protection device 1. The side wall 10 of the protection device 1 is arranged so as to be substantially parallel to the mooring rope 2. The winding wall portion 11 constituted by the first winding wall plate 14 and the second winding wall plate 15 is connected to the end portion of the side wall portion 10 and arranged in a direction away from the mooring rope 2. Here, the first entraining wall plate 14 is disposed in a direction substantially orthogonal to the mooring rope 2, and the second entraining wall portion 15 is disposed so as to be substantially parallel to the mooring rope 2. Yes. In addition, arrangement | positioning of the winding wall part 11 is not limited above.

Next, mooring work will be described. When the mooring work is performed, the supervisor monitors the mooring rope 2 from the protection region R formed by the side wall portion 10 and the entraining wall portion 11 and gives an instruction to the operator of the winch 6. The monitor can monitor the state of the mooring rope 2 from the monitoring hole (or light hole) 13 (see FIG. 2) formed in the side wall plate 12 and the first and second entraining wall plates 14 and 15. . Note that the side wall plate 12 and the entraining wall plates 14 and 15 may be formed of a transparent material such as polycarbonate or acrylic resin, and the monitoring hole 13 may not be provided.

  With the configuration described above, the safety of the supervisor can be ensured even when the mooring rope 2 is broken during mooring work. This is because the broken mooring rope 2 does not reach the supervisor in the protection device 1 (protection region R). A broken line shown in FIG. 3 indicates a position when the broken mooring rope 2 collides with the protection device 1. Since the broken mooring rope 2 collides, the side wall plate 12, the entraining wall plates 14, 15 and the column 16 are configured to have a strength that can withstand this collision.

  In FIG. 4, the top view of 1 A of protection apparatuses of different embodiment is shown. This protective device 1A is configured such that the entraining wall portion 11A is curved. Moreover, the side wall part 10 and the entraining wall part 11A are not connected, but are configured as separate bodies. The shape of the entraining wall portions 11 and 11A is not limited to the above-described configuration, and may be any shape that can form a sufficient protection region R that protects the observer.

  FIG. 5 shows an example when the protective device 1 is disassembled. With reference to FIG. 5, the disassembling work of the protective device 1 will be described. First, the side wall plate 12, the first winding wall plate 14, and the like are pulled out from the support column 16. Thereafter, the remaining support column 16 is stored in the deck of the ship 3. As described above, the protection device 1 can be easily disassembled. Note that the method of removing the side wall plate 12 and the like from the protective device 1 is not limited to the above, and can be arbitrarily determined by pulling out or removing the side plate.

  With the above configuration, the following operational effects can be obtained. First, the protective device 1 can be installed and used only during mooring work. Therefore, the worker can easily move on the deck except during mooring work.

  Secondly, the installation position of the protection device 1 can be changed according to the berthing direction of the ship 3. Therefore, it is not necessary to install a large amount of protection device 1 on the ship.

  Thirdly, mooring work can be performed while changing the installation position of the protection device 1. That is, the protection device 1 can be moved in accordance with the movement of the supervisor. Therefore, it is sufficient to prepare the protective device 1 for at least the number of supervisors.

  In addition, you may comprise so that the support | pillar 16 can be removed from a deck. At this time, for the joining of the support column 16 and the deck, a screw type or a twist lock (container lashing device) type can be adopted. Further, it is possible to adopt a system in which the support column 16 is tilted up and stored on the deck, and a system in which the entire protection device 1 is folded and stored on the deck.

  Moreover, you may comprise the side wall board 12 grade | etc., With one board. Furthermore, you may comprise the protection apparatus 1 by shape | molding integrally with FRP or an acrylic board. With this configuration, the protective device can be reduced in weight. Therefore, the monitoring person can perform the monitoring work while easily moving the protection device. The protection device 1 can also be made of wood.

  From the above, it is possible to improve the safety of the worker (monitoring person) at the time of mooring work. It is desirable to install the protective device on the quay side as well as on the ship.

1. Protection device for mooring lines (protection device)
2 Mooring line 3 Ship 10 Side wall part 11 Entrainment wall part 12 Side wall plate 13 Monitoring hole, light hole 14 First entrainment wall plate 15 Second entrainment wall plate 16 Column R Protection area 31 Quay

Claims (3)

A protective device for mooring lines installed in the vicinity of the mooring lines that fix the ship to the quay,
The protection device includes a side wall portion that is substantially parallel to the mooring line, and a winding wall portion that extends in a direction away from the mooring line from the vicinity of an end of the side wall portion, and the protection device includes: A protection device for a mooring line, comprising a protection region which is a space formed by the side wall portion and the entraining wall portion. The side wall portion has a column and a side wall plate fixed to the column,
The mooring rope protection device according to claim 1, wherein the entraining wall portion includes a support column and an entraining wall plate fixed to the support column.   The mooring rope protection device according to claim 1 or 2, wherein the side wall plate or the entraining wall plate is detachable from at least the support column.

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