JPS6312080Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention enables barges such as dredgers and rubble leveling vessels to
This invention relates to a device whose position can be maintained by an inclined spud.

A conventional barge position holding device using an inclined spud is shown in Figure 3 (side view of the tip of the inclined spud), in which a tip spud a that can penetrate into the seabed E is fixed to the tip of the inclined spud 3. has been done. This tip spud a is designed to be able to penetrate into the seabed E while drawing a trajectory as indicated by the symbol A when in use.

However, in a barge position holding device equipped with such an inclined spud, as shown in FIG. At shallow water depths L', there is a problem in that the tip spud a falls down as shown by the chain line and cannot adequately engage the seabed.

Therefore, as shown in FIG. 5, it has been proposed that a tip spud a is pivotally attached to the tip of an inclined spud 3 via a hinge h, but in this case, when an external force is applied to the tip spud a, There is a problem in that the tip spud a falls over, resulting in a decrease in the anchoring force to the seabed.

The present invention attempts to solve these problems by making it possible to always secure the anchoring force to the seabed at the tip of the inclined spud, so that the position of the barge can be sufficiently maintained. The purpose of the present invention is to provide a barge position holding device.

For this reason, the barge position holding device of the present invention is equipped with an inclined spud that is attached to the barge so that it can be raised and lowered, and a spherical body with a large number of protrusions is provided to anchor the tip of the inclined spud to the sea bed. ,
It is characterized in that the spherical body is pivotally attached to the tip of the inclined spud in a freely directional manner.

Hereinafter, a barge position holding device as an embodiment of the present invention will be explained with reference to the drawings. Fig. 1 is a side view showing the overall configuration of a barge equipped with the position holding device according to the present invention, and Fig. 2 is a side view showing the above-mentioned position holding device. FIG. 3 is a partial side view showing the operation of the main parts of the device.

As shown in FIG. 1, the inclined spud 3 has its base end pivoted to the tip of the arm 3a, and
A suspension rope 5 is connected to the intermediate portion.

By winding the hanging rope 5 through the spud gantry 4 with a winch (not shown), the inclined spud 3 can rotate about the tip of the arm 3a and can be raised or lowered.

Further, the base end of the arm 3a is pivotally connected to the stern of the barge 7 via a horizontal pin 7a, and the telescopic end of a hydraulic cylinder 6 whose cylinder end is supported by the barge 7 is pivotally connected to the intermediate portion thereof. ing.

Therefore, the inclined spud 3 and the arm 3a
While holding the hydraulic cylinder 6 in a fixed position,
The barge 7 can be moved forward by performing the extension action of the barge 7.

On the other hand, at the tip of the inclined spud 3, a spherical body 1 having a large number of protrusions 1a is pivotally attached to the tip of the inclined spud 3 via a link-like fitting 2, and the spherical body 1 is pivoted in accordance with the elevation of the inclined spud 3. After the body 1 is lifted and lowered, and the spherical body 1 penetrates into the seabed E and is anchored to the seabed E, the spherical body 1 is in a fixed state, and an inclined spud is applied to the spherical body 1. 3 can rotate.

A rudder gantry 9 is disposed on the bow of the barge 7, and a suction rudder 8 can be lifted up or down using a lifting wire 10.

Since the barge position holding device of the present invention is constructed as described above, the following operations are performed.

First, the hanging rope 5 is loosened, the inclined spud 3 is rotated downward, and the spherical body 1 is lowered toward the seabed. The spherical body 1 that has arrived at the seabed E is in the state B shown in Figure 2, but then rotates and changes to the state C.
It penetrates into the soil as in the state of . Then, the spherical body 1 penetrates until the weight of the water and the resistance force due to the earth pressure are balanced, and is locked in the state shown in D.

Thereafter, for the dredging work of the barge 7, the inclined spud 3 centered on the above-mentioned locked spherical body 1 is
and rotation of barge 7 (rotation of approximately 60 degrees in plane angle)
Accordingly, rotational force is also generated in the spherical body 1. Further, when the water depth of the seabed E changes, a rotational force is generated in the spherical body 1, and when an external force is applied to the inclined spud 3 due to waves, etc., a rotational force is generated on the spherical body 1.

When the spherical body 1 actually rotates due to such rotational force, even if a certain protrusion 1a moves and no longer engages the anchoring action to the seabed, other protrusions 1a nearby may not engage the anchoring action to the ocean floor. It moves so that it can perform its action, and the anchoring action to the seabed can still be performed effectively.

Therefore, the locked state of the spherical body 1 is sufficiently maintained, and as a result, the position of the barge 7 is reliably maintained.

In addition, as the barge 7 rotates around the spherical body 1, after the dredging work by the suction ladder 8 is completed, the barge 7 is moved forward by the extension action of the hydraulic cylinder 6, and the next dredging work is started. It is done.

As described in detail above, the barge position holding device of the present invention includes an inclined spud that is attached to the barge so as to be able to move up and down, and has a large number of protrusions for anchoring the tip of the inclined spud to the seabed. It has a simple configuration in which a spherical body is provided and the spherical body is pivoted to the tip of the inclined spud so that the spud can be oriented freely. Even when rotational force is applied to the spherical body at the tip, the anchoring force to the seabed is always ensured, which has the advantage that the barge can be held in position safely and reliably.

[Brief explanation of the drawing]

Fig. 1 is a side view showing the overall structure of a barge equipped with a position holding device according to the present invention, Fig. 2 is a partial side view showing the operation of the main parts of the position holding device, and Figs. FIG. 2 is an explanatory view showing the function of a conventional barge position holding device using an inclined spud. 1... Spherical body, 2... Link-shaped mounting hardware that pivots freely in direction, 3... Inclined spud, 3a...
Arm, 4... Spud gantry, 5... Suspension rope, 6... Hydraulic cylinder, 7... Barge, 7a...
...Horizontal pin, 8...Suction ladder, 9...Rudder gantry, 10...Lifting wire, E...Seafloor.

Claims (1)

[Scope of utility model registration request] A barge is equipped with an inclined spud that is attached to the barge so that it can be raised and lowered, and a spherical body with many protrusions is provided to anchor the tip of the inclined spud to the seabed, and the spherical body is directed toward the tip of the inclined spud. A barge position holding device characterized by being freely pivoted.