JP2002166877A - Device for taking in headed buoy and headed wire - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a device for taking in a head buoy and a head wire, capable of safely and easily connecting a head wire to the suspension wire of an anchor handling boat in a short time. SOLUTION: This device 10 for taking in the head wire is provided with the head buoy 1 in which a pipe 7 to pass a head wire 3 through the horizontal center part of a drum buoy 2 having an enlarged volume in its lower part is disposed, the pipe 7 has a trumpet 6 formed on the side protruding toward the upper part of the drum buoy, and one end of the head wire 3 is connected to the back of an anchor and the other end is successively connected to a wire eye 8 after passing through the pipe, and a head wire holding part 23 composed of a rotary plate 17 rotatably installed on an outer stanchion tube 14 attached to a stanchion 13, a first arm 18 vertically rotatable around a pivoted part at the upper position of the rotary plate 17, and a second arm 19 vertically rotatable around the pivoted part by being pivoted by the tip part of the first arm 18.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a head buoy and a head wire take-in device capable of changing an anchor for fixing a work boat in a short time.

[0002]

2. Description of the Related Art A ground improvement work boat 101 on which a ground improvement device 103 is mounted strikes four to six anchors 105 at positions released from the work boat, and anchor wires 102 attached to the anchors 105 are anchored by an anchor inch 104. And tighten the work boat (FIGS. 11A and 11B). The work range of the work boat 101 is such that four to six anchors 105 are wound around each winch 104 within the installation position, the amount of winding is variable, and the work boat is set at a predetermined position. In addition, by changing anchoring, it is possible to maneuver in other areas.

A chain 102a and an anchor 105 are connected to a wire 102 extending from an anchor inch 104 of a work boat.
5 will dig into the ground. Also, a head wire 3 for lifting the anchor is attached to a hanging bracket 105a attached to the back of the anchor 105, and the tip of the head wire 3 is
After that, the slinging wire 60 is attached to the wire eye 8. Accordingly, the anchor 105 can be lifted by unwinding the anchor inch 104, loosening the anchor wire 102, and then pulling up the head wire 3 (FIG. 12).

Conventionally, such an anchor replacement operation has been performed in the following procedure. To take in the anchor, first, the anchor wire is unwound, and the crew visually checks the buoy from the anchorage boat prepared separately from the work boat and approaches. Next, the wire is hooked and pulled with a hacker to take in the slinging wire. After temporarily fixing the head wire to the anchor ship so as not to slide down, the wire eye and the suspension wire of the anchor ship are joined with a shackle as a joining jig. Next, the winch on the anchoring vessel is wound up to take in the anchor, and the anchoring winch of the working boat is unwound. After the loading of the anchor is completed, the anchorage boat is moved to the next driving position. An anchor implantation in a new area,
First, the anchor cow inch is lowered, the anchor is installed, and the shackle is removed when the sling wire is loosened, and the installation work of the anchor is completed.

[0005]

The above-described conventional anchor replacement work involves maneuvering the anchorage vessel, one captain performing remote control of the winch, maintenance of the engine, and operation of the machine side of the winch. At least one chief engineer and two deck members who perform slinging work are required. In addition, the head buoy, head wire, and anchor ship all have large swings, so it is difficult for the head buoy and head wire to be taken into the anchor ship deck, and it is difficult to join the slinging wire and the suspension wire of the anchor ship. Met. In addition, when the sea is rough, there is an even greater danger. Workers usually wear life vests and work in situations where even a falling boat may occur.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a head buoy and a head wire which can quickly and safely and easily incorporate a head wire into a deck of a anchorage boat and join a head wire and a suspension wire of the anchorage boat. An object of the present invention is to provide a capturing device.

[0007]

Under such circumstances, the present inventors have conducted intensive studies and as a result, have found that a head wire take-in device having a specific structure, which can be called an automatic hacker device for taking in a head wire, is installed at the bow of a windlass. For example, it has been found that the head wire can be easily taken into the anchorage deck, and that the joining work between the suspension wire and the wire eye of the anchorage can be performed safely and easily in a short time, and the present invention is completed. Reached.

That is, in the first aspect of the present invention, a pipe for passing a head wire is disposed at a lateral center of a drum buoy having a body part having a large lower volume, and the pipe protrudes upward from the trumpet pipe on the side protruding above the drum buoy. Wherein the head wire provides a head buoy having one end connected to the back of the anchor and the other end connected to the wire eye through the pipe.

In a second aspect of the present invention, there is provided a fixed portion such as a bow deck or a pedestal installed on the fixed portion so as to be movable in the front-rear direction, a support installed on the fixed portion or the pedestal, and By inserting a column, a column outer tube rotatably attached to the column, a rotating plate rotatably installed on the column outer tube in a plane along the longitudinal direction of the column outer tube, A first arm pivotally supported by a pivot at a position above the rotary plate and rotatable vertically about the pivot; and a first arm pivotally supported by a distal end of the first arm and centering on the pivot. And a head arm holding portion comprising a second arm rotatable in a vertical direction.

According to a third aspect of the present invention, the support column has a lower end pivotally supported by the fixed portion or a pivot portion on the gantry, and one end is pivotally supported on the fixed portion or the gantry. A head having a top end rotatably supported at the other end of the cylinder for rotation, and a column-shaped support rotatable in the front-rear direction around the pivot at the lower end by expansion and contraction of the tilting cylinder. A wire capturing device is provided.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A head buoy according to an embodiment of the present invention will be described with reference to FIGS. FIG. 1 is a front view showing a state in which the drum buoy and the head wire are locked, FIG. 2 is a plan view of the drum buoy of FIG. 1, and FIG. The head buoy is provided with a pipe 6 for passing the head wire 3 at the horizontal center of the drum buoy 2 having a body portion 2b having a large volume below the horizontal cylindrical drum body 2a. By making the lower volume of the drum buoy 2 large, the buoyancy is easily received, and the pipe 6 that guides the wire can be set to a position where the vertical posture is always maintained. The side of the pipe 6 protruding above the drum buoy 2 forms a trumpet tube. That is, the pipe 6 is composed of a straight pipe part 5 in the drum buoy 2 and a different diameter pipe 4 whose diameter increases like a trumpet from the straight pipe part 5 toward the opening. The straight pipe portion 5 extends to the side protruding above the drum buoy 2, and the head wire 3 is easily taken in by making the height of the wire eye 8 of the anchor buoy and the head buoy the same level. At the upper end of the different diameter tube 4, a wire eye positioning portion 4a is provided which is cut out so that the front view is parabolic and the side view is reverse parabolic. One end of the head wire 3 is connected to the back surface of the anchor, and the other end is connected to the wire eye 8 through the pipe 6. A fitting member 7 having a male conical portion 7a is provided at a connection portion with the wire eye 8,
The male conical portion 7a of the fitting member 7 has a fitting structure with the female conical portion 4b of the flared portion 6 of the trumpet tube 6, and the eye of the wire eye 8 faces forward after the fitting.

A head wire take-in device according to an embodiment of the present invention will be described with reference to FIGS. FIG. 4 is a front view of a head wire capturing device and the like according to the present embodiment, and FIG.
6 is a plan view of the head wire capturing device of FIG. 4, and FIG. 6 is a right side view of the head wire capturing device of FIG. The head wire take-in device 10 has a flat base 12 that is movably mounted in a forward and backward direction on a fixed part such as a bow deck, a lower end of the base 12 is pivotally supported by a pivot portion of the base 12, and one end is pivotally supported on the gantry 12. The other end of the tilting cylinder 13a is rotatably supported at its upper end,
A column 13 that is rotatable in the front-rear direction about a pivot 13 e by expansion and contraction of the tilting cylinder 13 a, and a column outer tube 14 that is rotatably attached to the column 13 by inserting the column 13 into the tube. And a rotating plate 17 rotatably mounted on the column outer tube 14 in a plane along the longitudinal direction of the column outer tube 14.
A first arm 18 pivotally supported by a pivot 18 a provided above the rotating plate 17 and rotatable vertically about the pivot 18 a, and a pivot at a distal end of the first arm 18. And a second arm 19 pivotally supported at 18b and rotatable up and down around the pivoted portion 18b.

The gantry 12 is slidably mounted on a rail 12a attached to the bow deck and the like in the bow and stern direction (front-rear direction), and the entire head wire take-in device 10 is moved by the movement of the gantry 12. (In the direction of arrow A in FIG. 4). The gantry 12 has a pivot 13c for pivotally supporting a tilting hydraulic cylinder 13a for tilting the column 13 in the front-rear direction, and a pivot 13e for pivotally pivoting the lower end of the column 13 to the rear. Is provided in front.

The column 13 is rotatably mounted at its lower end by a pivot 13e attached to the front side of the gantry 12, and pivots with the rod of the tilt hydraulic cylinder 13a by a pivot 13b attached to its upper end. It is movably joined.
Therefore, when the rod of the hydraulic cylinder 13a for contraction contracts, the column 13 rotates in the direction of arrow B1, and when extended, rotates in the direction of arrow B2.

The outer post 14 is a circular tube whose inner diameter is slightly larger than the outer diameter of the post 13, and is installed rotatably with respect to the post 13. As shown in FIG. 5, a method of operating the column outer tube 14 so as to be rotatable with respect to the column 13 is to use a pivot 14 on a base 15 having one end fixed integrally with the column 13.
In this method, the hydraulic cylinder 14a is rotatably supported on the other end, that is, the cylinder support rod 14b attached to the side surface of the outer column 14 of the column. Accordingly, when the rod of the hydraulic cylinder 14a contracts, the outer post 14 rotates in the direction of arrow C1, and when extended, rotates in the direction of arrow C2.

The rotating plate 17 is installed rotatably in a plane along the longitudinal direction of the column outer tube 14 via an external tube substrate 16 fixed to the column outer tube 14. That is, the rotating plate 17 is rotated in a vertical plane with respect to the outer tube substrate 16 by the shaft hole provided at the center of the rotating plate 17 being supported by the shaft 17 a protruding from the center of the outer tube substrate 16. Can be mounted freely. As shown in FIG. 6, a method of operating the rotating plate 17 so as to be rotatable with respect to the outer tube substrate 16 is as follows.
4 is pivotally supported by a pivot 21b of a mounting base 21c fixed to the base 4, and the other end, that is, a cylinder rod is pivotally supported by a pivot 21a installed on a side surface portion below the rotary plate 17. This is a method performed by the hydraulic cylinder 21 performed. Therefore, when the rod of the hydraulic cylinder 21 contracts, the rotating plate 17 rotates in the direction of arrow D1 and when it extends, rotates in the direction of arrow D2. In FIG. 6, the description of the head wire holding portion 23 is omitted.

The head wire holding portion 23 includes a first arm 18 and a second arm 19, and the first arm 18 is
The second arm 19 is vertically rotatable with respect to the first arm 18. That is, the first arm 18 is formed by stacking two slightly bent plate-like members so as to have a predetermined thickness, and one end thereof is turned around the pivot 18 a on the upper side of the rotary plate 17. It is pivotally movable. Also, the first arm 1
A first guide plate 18c is provided inside each of the two plate-like members at the other end of the other end of the guide plate 18c. The first guide plate 18c has a second guide plate 19 at its center.
This is a protrusion having a first guide groove 18d cut out in a semicircle that sandwiches the head wire in cooperation with c. As shown in FIG. 4, a method of operating the first arm 18 so as to be rotatable in the vertical direction with respect to the rotating plate 17 is such that one end is rotatably pivoted to a pivot 20c provided below the rotating plate 17. In this method, the hydraulic cylinder 20a is supported and the other end, that is, the cylinder rod is rotatably supported by a pivot provided at an intermediate portion of the first arm 18. Accordingly, when the rod of the hydraulic cylinder 20a contracts, the first arm 18 rotates in the direction of arrow E1, and when extended, rotates in the direction of arrow E2.

The second arm 19 has a plate-like member connected to the first arm 18 and is a tubular member slightly from the tip to the tip. The tip is conical and the tip of the wire eye 8 of the head buoy 1 is formed. The second arm 19 is easily inserted therein. The second arm 19 is rotatably connected to the first arm 18 by a connecting pin 18b for pivotal support provided slightly from the rear end to the center. A second guide plate 19c is installed at the center in the diametric direction above the vicinity of the center in the length direction of the second arm 19. The second guide plate 19c is a projection having a second guide groove 19d formed in a semicircular shape at the center thereof and cooperating with the first guide plate 18c to sandwich the head wire. As shown in FIG. 4, a method of operating the second arm 19 so as to be rotatable in the vertical direction with respect to the first arm 18 is as follows. Hydraulic cylinder 20 pivotally supported by the other end, that is, the cylinder rod is pivotally supported by the pivotal support 19b at the rear end of the second arm 19.
b. Therefore, the hydraulic cylinder 20b
The second arm 19 rotates in the direction of arrow F1 when the rod of FIG.

Next, a method of replacing an anchor using the head buoy and the head wire taking-in device of the present invention will be described with reference to FIGS. 4 to 8 are diagrams for explaining the joining operation of the head wire and the hanging wire of the anchor ship, and FIG. 9 is a diagram illustrating the incorporation of the head wire for releasing the joining of the head wire and the hanging wire of the anchor ship. FIG. The work boat, which is not shown in the figure, is fixed with an anchor wire attached to the anchor tensioned by an anchor inch. Then, the head wire 3 for lifting the anchor is attached from the back of the anchor, and after the tip of the head wire 3 is passed through the drum buoy 2, the wire eye 8 is locked to the drum buoy 2 by a trumpet tube (see FIG. 4). An anchor is taken in using an anchor ship 30 prepared separately from the work boat.

The anchor ship 30 is advanced in the direction of the head buoy 1 and approached from a direction perpendicular to the wire eye 8 of the head buoy 1. At this time, the second arm 19 of the head wire capturing device 10
Hydraulic cylinder 14a so that
Fine adjustment of the horizontal angle by the hydraulic cylinder 2
0a and the hydraulic cylinder 20b finely adjust the vertical angle.

Further, the anchor ship 30 is advanced in the direction of the head buoy 1 and the second arm 19 is inserted into the wire eye 8 of the head wire. When the second arm 19 enters the wire eye 8, the rod of the hydraulic cylinder 20b is extended and the second arm 19 is bent to take the head wire 3 into the wire holding hole 19d formed by the first plate 18c and the second plate 19c ( (FIG. 7). Next, the rod of the hydraulic cylinder 20a is extended,
The rod of the tilting cylinder 13a is contracted, the head wire holding portion 23 is lifted greatly upward, and the rod of the hydraulic cylinder 14a is extended, and the column outer tube 14 is rotated leftward in a plan view. To head wire holding part 23
Is turned greatly, and the head wire 3 is guided on the deck of the bow (two-dot chain line in FIG. 8).

Next, an operation for joining the wire eye 8 of the head buoy 1 and the suspension wire 30b from the anchor ship 30 is started. In this joining method, for example, a wire winch installed on the anchor ship 30 is wound up and the suspended wire 30b is lowered, and the worker uses the suspended wire 30b and the wire
Are joined by a shackle (joining jig) (not shown). When the joining of the wire eye 8 and the suspension wire 30b is completed, the rod of the hydraulic cylinder 14a is contracted, and the head wire holding portion 23 is turned in the direction of arrow G2 shown in FIG.
And the second arm 19 is lowered in the water surface direction to release the head wire 3 from the head wire holding portion 23. Next, the suspension wire 30b is wound by the wire winch of the anchor ship 30, and at the same time, the anchor wire from the work boat is unwound to release the anchor from the seabed, and the anchor is lifted. The shackle that joins the suspension wire 30b and the head wire 3 is both wound around the wire winch. Thereby, the anchor fry process is completed.

After the anchor has been taken in, the anchor ship 3
Move 0 and move to the next driving position. The driving of the anchor in the new area first unwinds the wire winch of the anchorage vessel 30 and loosens the head wire 3 to move the anchorage vessel 30 forward. At this time, the head wire capturing device 10 is used again. The head wire take-in device 10 extends the rod of the hydraulic cylinder 21 to rotate the rotary plate 17 by about 90 degrees, and further contracts the rod of the hydraulic cylinder 20b to make the first
The opening formed at the tip of the arm 18 and the second arm 19 is widened, and the head wire 3 suspended from the boom 30a is set so that the head wire holding portion 23 can easily hold the head wire 3 from the side. Then, the first of the head wire capturing device 10
The head wire 3 is guided to an opening formed by the ends of the arm 18 and the second arm 19. When the guided head wire 3 enters the opening, the hydraulic cylinders 20a and 20b are operated to take the head wire 3 into the wire holding hole 19d formed by the first plate 18c and the second plate 19c (FIG. 9). Further, as shown in FIG. 10, the head wire 3 enters the wire holding hole 19d and is pushed by the second plate 19c in an intermediate space formed by the two first plates 18c, so that a stable holding is achieved. It becomes possible.

When the head wire 3 is locked by the head wire take-in device 10, the head wire 3 is pulled into the bow deck by extending the rod of the hydraulic cylinder 20a and the rod of the hydraulic cylinder 14a. Next, the suspension wire 30b on the anchor ship 30 side is lowered, and when the wire eye 8 of the head wire stops at the wire holding hole 19d, the deckman removes the shackle, and the wire eye 8 and the suspension wire 30b of the anchor ship 30 are removed. Release the bond with Next, the head wire 3 is brought out to the front of the ship by contracting the rod of the hydraulic cylinder 20a and the rod of the hydraulic cylinder 14a, and the hydraulic cylinder 20b is contracted to rotate the second arm to release the lock of the head wire 3, The head wire 3 is released from the head wire holding portion 23, and the head wire 3 is dropped into the sea to complete the anchor installation work.

When the head wire take-in device 10 according to the embodiment of the present invention is used to replace the anchor, all operations except for attaching and detaching the shackle can be performed automatically, so that the number of workers can be reduced. , Work time is reduced. Further, the operation performed by the operator is only attaching and detaching of the shackle, which is safe.

[0026]

By using the head buoy and the head wire take-in device of the present invention, the work of taking the head wire into the deck and joining the head wire to the suspension wire of the anchor ship can be performed in a short time, safely, and safely. It can be done easily. In addition, the number of personnel required for the replacement work of the anchor can be reduced.

[Brief description of the drawings]

FIG. 1 is a front view showing a locked state of a drum buoy and a head wire.

FIG. 2 is a plan view of the drum buoy of FIG.

FIG. 3 is a right side view of the drum buoy in FIG. 1;

FIG. 4 is a front view of the head wire capturing device according to the present embodiment, and also shows a state in which the head wire capturing device approaches the head buoy.

FIG. 5 is a plan view of the head wire capturing device of FIG. 4;

FIG. 6 is a schematic view of the head wire capturing device as viewed from the right side.

FIG. 7 is a diagram for explaining the capture of a head wire.

FIG. 8 is a schematic view of FIG. 7 as viewed from above.

FIG. 9 is a diagram for explaining the release of the connection between the head wire and the suspension wire.

FIG. 10 is a partial view taken along line XX of FIG. 9;

FIG. 11 is a diagram showing a state in which the work boat is fixed with anchors.

FIG. 12 is a view showing a relationship between a conventional anchor, a head wire, and a head buoy.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 head buoy 2 drum buoy 2b body part 3 head wire 4 different diameter pipe part 5 straight pipe part 6 trumpet pipe 8 wire eye 9 sea 10 head wire take-in device 11 bow deck 12 gantry 13 support 13a cylinder for inclination 14 outer pipe 14a, 20a , 20b, 21 Hydraulic cylinder 15 Base 16 Outer substrate 17 Rotating plate 18 First arm 18c First guide plate 18d First guide groove 19 Second arm 19c Second guide plate 19d Second guide groove 30 Anchor ship 30b Lifting Suspension wire from anchor ship 102 Anchor wire 105 Anchor 101 Work boat

Claims (3)

[Claims] 1. A drum buoy having a body part with a large lower volume is provided with a pipe through which a head wire passes at a lateral center of the drum buoy. A head buoy having one end connected to the back of the anchor and the other end connected to a wire eye through the pipe. 2. A fixed part such as a bow deck or a base installed on the fixed part so as to be movable in the front-rear direction, a support installed on the fixed part or the mount, and inserting the support into a pipe. Thus, a column outer tube rotatably attached to the column, a rotary plate rotatably installed on the column outer tube in a plane along the longitudinal direction of the column outer tube, and above the rotary plate A first arm pivotally supported by a pivot portion at a position, and being rotatable vertically about the pivot portion;
And a second arm pivotally supported by a distal end of the arm and being rotatable up and down around the pivotal support portion. 3. The other end of the tilting cylinder, the lower end of which is pivotally supported by the fixed portion or the pivot portion on the gantry, and one end of which is pivotally supported on the fixed portion or the gantry. 3. The head according to claim 2, wherein an upper end is rotatably pivotally supported, and is a column-shaped column that is rotatable in the front-rear direction around the pivot at the lower end by expansion and contraction of the tilting cylinder. Wire capture device.