JPH1059273A - Anchor control device and mooring device for floating structure using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an anchor chain control unit which can control the chain in optional position, and a mooring device of a low cost using this anchor chain control unit. SOLUTION: This anchor chain control unit consists of a frame 1 furnishing a guide member 2 consisting of a guide groove to guide the movement of an anchor chain 3, supporting members sliding on both sides of the frame 1 in the same direction as the moving direction of the anchor chain 3, a stopper 4 whose one end is journalled to the supporting members and rotating in the direction orthogonal to the moving direction of the anchor chain 3, and the other end is locked to the supporting members through a pin, and a regulating liner 14 to set the moving position of the stopper 4. This mooring device of a floating structure is composed by combining the anchor chain control unit, the first wire rope 21, and the second wire rope 22 together.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anchorage control device for a large floating structure such as a ship, and a mooring device using the same.

[0002]

2. Description of the Related Art When mooring a quay of a large floating structure such as a large ship, it is essential to adjust the length of the mooring line according to wind tide and the like and to adjust the mutual tension of a plurality of mooring lines.

[0003] As the above-mentioned mooring method, a mooring method combining a wire rope and an anchor chain is known.

That is, in the above mooring method, a wire rope is used between the bollard on the ship and the quay, and an anchorage is connected to the wire rope on the quayside, and the anchorage is wound on a windlass on the quay. In this method, an anchor chain breaker is provided at an intermediate portion of the anchor chain to fix the anchor chain.

[0005]

However, the above-mentioned prior art requires large and expensive equipment such as a windlass.

[0006] Further, since the anchor system on the quay side is a stopper system that opens and closes at a single location, it is impossible to control the anchor chain at an optimum position.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems of equipment in mooring means and the problem of anchorage chain breaking.

[0008]

A first means for solving the above-mentioned problems is to provide a gantry provided with a guide portion comprising a guide groove for guiding the movement of the anchor chain, and to move both sides of the gantry in the moving direction of the anchor chain. A support member that slides in the same direction as the above, a stopper that is pivotally mounted at one end to the support member, rotates in a direction perpendicular to the moving direction of the anchor chain, and has the other end locked to the support member by a pin, and the stopper And an adjusting liner for setting a moving position of the anchor chain.

According to the first means, the anchor chain guided in the guide groove in the anchor chain breaker moves the stopper to the flat portion of the ring of the anchor chain, and fixes the moving direction of the anchor chain with the adjustment liner. Then, the stopper is rotated at that position, and the pin is inserted in alignment with the stopper end hole and the cradle hole, whereby the chain is controlled.

A second means for solving the above-mentioned problem is to provide a first wire rope having one end locked to a bollard on a floating structure, one end connected to the other end of the first wire rope and a quay wall. An anchor chain connected via a placed fairlead, a second wire rope for winch winding connected to the other end of the anchor chain, and an anchor chain which is provided at the anchor chain portion and is movable in a mooring direction and has a An anchor chain stopper having an anchor chain stopper capable of controlling the chain at an arbitrary position.

According to the second means, the first wire rope, one end of which is locked to the bollard on the floating structure, is locked to the bollard by previously forming a loop at the end. .

Also, an anchor chain is connected between the first wire rope from the floating structure and the second wire rope from the quay side winch, and the anchor chain is controlled at an arbitrary position.
Fine adjustment of the mooring line.

In the mooring operation using the mooring device of the present invention, first, one end of a first wire rope is locked to a bollard on a ship, and a second wire rope at the rear end of an anchor chain is connected to a quay (not shown). Pull with the winch on the side. After that, the ring of the anchor chain located at the guide portion of the anchor chain breaker where the anchor chain is located is closed with a stopper at the flattened portion and positioned by the adjustment liner, and the mooring operation is completed.

According to a third aspect of the present invention, there is provided a mooring device for a floating structure according to the second means, wherein the anchorage control device comprises the anchorage control device according to the first means. .

According to the third means, the anchor chain is guided to the anchor chain via the fair leader, and the anchor is rotated by the stopper rotating at an arbitrary position. At the same time, for the work of pulling the mooring line system consisting of the first wire rope and the anchor chain, since the second wire rope was arranged on the quay side of the anchor chain, it became possible to connect to the winch on the quay side, A normal winch can be used without using any other means.

[0016]

FIG. 1 is a plan view of an anchorage breaker according to the present invention, and FIG. 2 is a side view of the anchorage breaker.

In FIG. 1 and FIG. 2, a groove-shaped guide portion 2 is provided at the center of the gantry 1 to guide an anchor chain 3. A stopper 4 is disposed in a direction orthogonal to the guide portion 2. One end of the stopper 4 is axially attached to the support members 5, 5 by a shaft 6, and the other end is connected to the other support members 7, 7 by a pin 8. It has a structure to stop. 4 'is a handle.

Reference numeral 9 denotes a balance weight attached to one end of the stopper 4, which is provided for smooth rotation of the stopper 4 about the shaft 6.
In addition, 9 'is a handle.

Numerals 10 and 11 denote boxes each having an open top, into which an adjustment liner 14 described later is inserted.

The stopper 4 slides with the support members 5, 5, 7, and 7 in the direction of the anchor chain (in FIG. 1, the left and right direction).

Reference numerals 12 and 13 denote guide openings of the anchor chain 3, the upper part of which is inclined. FIG. 3 is a cross-sectional view taken along line AA of FIG. 1 and shows the stopper 4 in a closed state. The support members 5 and 7 are shaped as shown in FIG. In particular, since the upward lifting force acts on the anchor chain 3, the rail 1 a at the lower portion of the gantry 1
The support members 5 and 7 are received.

A groove-shaped guide portion 2 at the center of the gantry 1
When the ring 3a of the anchor chain 3 is in the upright state, the stopper 4 is in the closed state on the upper surface 2 'of the guide portion 2 when the ring 3b of the anchor chain 3 is in the flat state.

FIG. 5 is a front view of the adjusting liner 14, in which a handle 14a is provided at an upper portion, and light holes 14b, 14c, 1 are provided.
4d is provided. A plurality of the adjusting liners 14 are prepared with different thicknesses, and are used to fix the stopper 4 at the position of the flat ring 3b of the anchor chain 3 located at the guide portion 2.

FIG. 6 is a side view of the plurality of adjustment liners 14, and is a side view in which a plurality of adjustment liners 14 having different thicknesses are arranged.

FIG. 7 is a perspective view showing an embodiment of the second invention in which the anchor breaker according to the first invention of the present invention is used as a mooring device for a ship which is a floating structure.

Reference numeral 15 denotes a stern portion of a ship located above the water, 16 denotes a bollard installed on the deck of the stern portion 15, 17 denotes a fairlead on the ship, 18 denotes a quay,
9 is a fairlead on the quay 18 and A is the anchor breaker according to the first invention.

Reference numeral 20 denotes a roller-type fair leader provided behind the anchor chain breaker A on the quay wall 18.

The mooring line system is connected to the first wire rope 21 connecting the ship and the anchor chain 3, the anchor chain 3 connected to the first wire rope 21, and further connected to the other end of the anchor chain 3. It consists of a second wire rope 22.

One end of the first wire rope 21 is formed as a loop portion 21 ', and is fixed to the bollard 16 on the deck of the stern portion 15 using a crane or the like of an outfitting quay.

The intermediate portion of the first wire rope passes through the fairlead 17 and the other end is connected to the anchor chain 3. The first wire rope 21 and the anchor chain 3 are responsible for the strength of the mooring line of the ship, for example, 150,000 tons (DW
The diameter of the first wire rope 21 for mooring the ship in T) is 66 mm, and the ring diameter of the anchor chain 3 is 8 mm.
1mm thick size is used, ring width is 292
mm, and an anchor chain having a ring length of 488 mm is used.

Therefore, when the stopper 4 of the anchor chain breaker A is of a fixed type, an adjustment displacement of about 1 m occurs.

Since the second wire rope 22 has a function like a moat rope and does not apply a mooring force, it is sufficient that the second wire rope 22 has enough strength to pull the first wire rope 21 and the anchor chain 3.

The roller-type fairlead 20 disposed on the quay side is used for changing the direction of the second wire rope 22, and is not necessarily required when a sufficient quay space is secured.

[0034]

According to the present invention as described above, the anchor chain breaker can control the chain at any position where the anchor chain is located.
Fine adjustment for applying the tension of the mooring line system can be easily performed, and the mooring operation can be performed in a short time.

In addition, it is not necessary to install a conventional windlass on the quay side, and an ordinary winch can be used, so that the equipment cost is low.

[Brief description of the drawings]

FIG. 1 is a plan view of an anchor chain breaker according to the present invention.

FIG. 2 is a side view of the anchor chain breaker according to the present invention.

FIG. 3 is a sectional view taken along line AA of FIG. 1;

FIG. 4 is a front view of a support member of the anchor chain breaker according to the present invention.

FIG. 5 is a front view of an adjustment liner of the anchor chain breaker according to the present invention.

FIG. 6 is a side view of an adjustment liner of the anchor chain breaker according to the present invention.

FIG. 7 is a perspective view of a mooring device for a floating structure according to a second invention of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Stand 2 Guide part 3 Anchor chain 4 Stopper 5 Support member 6 Shaft 7 Support member 8 Pin 9 Balance weight 10 Box part 11 Box part 12 Guide opening 13 Guide opening 14 Adjustment liner 15 Stern part 16 Bollard 17 Fair leader 18 Wharf 19 Fair leader Reference Signs List 20 roller-type fairlead 21 first wire rope 21 'loop portion 22 second wire rope

Claims (3)

[Claims] 1. A gantry provided with a guide portion comprising a guide groove for guiding the movement of an anchor chain, a support member sliding on both sides of the gantry in the same direction as the movement direction of the anchor chain, and one end of the support member A stopper which is pivoted in a direction perpendicular to the moving direction of the anchor chain and has the other end locked by a pin to the support member, and an adjustment liner for setting a moving position of the stopper. Anchor chain breaker. 2. A first wire rope having one end locked to a bollard on a floating structure, and one end connected to the other end of the first wire rope and connected via a fairlead arranged on a quay. An anchor chain, a second wire rope for winding a winch connected to the other end of the anchor chain, and an anchor chain provided at the anchor chain portion and movable in a mooring direction and capable of breaking at any position of the anchor chain. An anchorage device for a floating structure, comprising: an anchor chain stopper having a stopper. 3. The mooring device for a floating structure according to claim 2, wherein the anchorage breaker comprises the anchorage breaker according to claim 1.