JPH0123360B2 - - Google Patents

Description

[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a boarding/disembarking device for a ship, and is capable of setting the gangway without requiring human labor.

<Prior art> In conventional ship boarding and disembarkation devices, a gangway is mounted on the deck so that it can be rotated horizontally and tilted vertically. The ladder is lowered to a position within reach of a worker at the station, and then the worker swings out and sets the gangway horizontally.

However, as the automation of ships has progressed in recent years, there has been an increasing demand for devices that do not require human intervention for boarding and disembarking devices.

For this reason, for example, a boarding/disembarking device as shown in FIG. 3 has been proposed.

In this device, a powered turntable 50 is provided on the deck
etc., and the vertical movement of the gangway 51 is controlled by a wire 52.
Accordingly, the swinging is performed by the turntable 50.

However, in the case of such a device, as shown in the figure, when the gangway 51 is swung out, the wire 52 becomes oblique and an unreasonable force is applied to the wire 52, resulting in the disadvantage that the swinging angle cannot be made very large.

<Summary of the Invention> The present invention has been made to improve the above-mentioned drawbacks of the prior art, and provides a device that has a simple structure, does not require manpower, and can obtain a large swing amount without applying excessive force. This is what we are trying to provide.

The apparatus of the present invention includes a turntable and a gangway mounted on the turntable so as to be rotatable in the vertical direction. A drive device is attached to the turntable, which rotates the turntable and swings out the gangway.

The davit is provided with an arm whose intermediate portion is hinged and can be bent horizontally, and is capable of rotating horizontally so that the arm can be extended in the width direction of the hull. The wire for suspending the gangway is arranged along the arm, and the tip of the wire hangs down from the tip of the arm, so that the free end side of the gangway is suspended. The wire is wound up and fed out by a wire drum on the hull side.

According to such a device, when swinging out the gangway, the arm of the davit follows the gangway, and the tip of the arm from which the wire should be drawn out is always located directly above the gangway. The lowered wire can always be maintained in a substantially vertical state, no excessive force is applied to the device, and a large swing amount can be obtained.

<Examples> Examples of the present invention will be described below based on the drawings.

Figure 1 is a plan view, Figure 2 is an elevation view seen from the bow side, where X is the deck, 1 is the turntable, and 2 is the gangway. The turntable 1 is rotatably supported on a suitable support stand (not shown) via rollers 10 and the like so as to extend out to the side. A swing hydraulic cylinder 11 is attached to the turntable 1 to rotate the turntable. The rotational drive device for the turntable 1 is not limited to a hydraulic cylinder, and various other types such as a motor can be used.

A gunwale 2 is attached to the turntable 1 along the gunwale so as to be rotatable in the vertical direction. The other end of the gangway 2 is suspended by a wire drum 4 via a davit 3.

The davit 3 is composed of a main body 30 rotatably erected on the deck X and an arm 31 attached to the main body 30. The arm 31 can be bent by a hinge 32 at the middle part, and the main body 3
By rotating the arm 31 and adjusting the bending angle of the arm 31 at the hinge 32, the arm 31 can be extended by a required amount in the width direction of the hull.

The wire drum 4 is installed on the deck X, and the wire 40 hangs down from the tip of the davit main body 30 along the arm 31, from which the gangway 2 is suspended. The wire 40 is connected to the arm 31 in this example.
The gangway 2 is configured to be supported from below by rollers 33, 33 mounted thereon.

Note that 20 in the figure is an upper platform.

In the above configuration, when the ship docks, the cylinder 11 is driven to rotate the turntable 1 and swing out the gunwale 2 by a predetermined amount as shown by the dashed line in FIG. At this time, the arm 31 also extends according to the swing-out, and the davit body 30 also rotates accordingly, so the tip of the arm 31 is always connected to the gangway 2.
This will be suspended from directly above. Therefore, no excessive force is applied to the device, and the turntable 1 can be rotated smoothly. Therefore, the capacity of the cylinder 11, which is the driving source for rotation, is relatively small, and the device can be downsized.

When the swing-out is completed, the wire drum 4 is reeled back, the gangway 2 is lowered, and its lower end is landed.
Complete installation of boarding and disembarkation equipment.

To store the device, follow the above procedure in reverse.

<Effects of the Invention> As explained above, the device of the present invention has a simple structure, a wide range of swing angles, and
Moreover, since the wire suspending the gangway can always be in a substantially vertical state, no undue force is applied to the equipment. Further, there are advantages in that the turntable drive device and the like can be downsized, and the entire device can also be downsized.

[Brief explanation of drawings]

FIG. 1 is a plan view showing an embodiment of the boarding/disembarking device of the present invention, FIG. 2 is an elevational view, and FIG. 3 is an explanatory diagram of the prior art. 1... turntable, 2... gangway, 3... davit, 4... wire drum.

Claims (1)

[Claims] 1. A rotatable turntable, a drive device for rotating the turntable, a gangway supported by the turntable so as to be vertically rotatable, and an arm whose intermediate portion is hinged and can be bent horizontally. a davit which can be rotated in the horizontal direction and extends the arm appropriately in the width direction of the hull; a wire disposed along the arm and hanging from the tip of the arm to suspend the gangway; and winding of the wire; A boarding and disembarkation device characterized by having a wire drum that performs feeding.