JPH0334394Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Field of Industrial Application) The present invention relates to a swing-out gangway that is stored on the upper deck near the side of the rear part of a ship.

(Prior art) Conventionally, in ships equipped with a hatch cover for opening and closing the hold, such as bulk carriers and cargo ships, a gunwale is generally installed near the gunwale on the upper deck of the parallel part of the central part of the hull. Because it is dangerous for people to get on and off the vessel, the above-mentioned gangway is installed near the gunwale on the upper deck on the stern side.

The base end of the gangway is connected to the outer periphery of the turntable on the upper deck so that the above-mentioned gangway can be swung out over the side and spanned to the pier or stored on the upper deck. The proximal end of the gangway can be swung out or into the gunwale via a turntable, and the leading end of the gangway can be rolled up using a davit device (including a winch) installed on the gunwale. It is now possible to hang it down.

(Problem that the invention aims to solve) As mentioned above, when the gangway is installed on the upper deck of the stern side, the stern side of the ship is not in a berthed state, so the gangway can only be hung diagonally from the ship's side. However, it is not possible to bridge the ladder to the pier, so by suspending the tip of the ladder and pulling the tip of the ladder toward the pier via a rope, etc. extended from the tip of the gangway, the ladder can be bridged to the pier. Alternatively, it is necessary to suspend the leading end of the gangway and build a pier from the pier to the leading end.

In this way, not only does it take a lot of effort and time to erect the gangway that has been swung out to the side, but also when the gangway is swung out from the stowed position to the side, and when moved from the outside to the stowed position. There is a problem that this cannot be done automatically and requires a lot of effort. Furthermore, when a davit device is provided near the side of the stern deck, there is a problem in that there is insufficient space between the side and the superstructure, which impedes traffic.

The purpose of this invention is to enable the gangway to be easily and efficiently spanned between the ship's rear side and the wharf, or to be stored on the upper deck near the ship's side, and to improve traffic on the upper deck by effectively utilizing the ship's hull structure. It is an object of the present invention to provide a swing-out gangway that can be installed without obstructing.

(Means for Solving the Problems) The swing-out gangway according to the present invention includes a swing-out gangway that is stored on the upper deck near the gunwale at the rear of the hull, and a first swing-out device that supports the proximal end of the gunwale and a gunwale. a second swinging device for supporting the tip side portion; A platform is mounted so as to be movable in a direction substantially orthogonal to the platform, and the outer end of the platform is connected to the outer end of the platform so as to be rotatable around a vertical axis, so that the base end of the gangway can be freely swung around a horizontal axis. It comprises a supporting rocking table, and a first drive means for driving the platform alternately between a use position where the outer end of the platform is swung out to the side of the ship and a storage position where the outer end of the platform is swung out into the side of the ship; The device consists of a track member that is disposed near the lower side of the bridge deck directly above the upper deck, substantially perpendicular to the shipside and substantially horizontally, and is fixed vertically to the bridge deck; A movable beam mounted so that it can move freely in the horizontal direction,
a second drive means for driving the movable beam alternately between a use position in which the outer end portion of the movable beam is swung out to the side by an appropriate length and a storage position in which the outer end portion thereof is retracted into the side; and a sheave at the outer end portion of the movable beam. and a lifting drive means for raising and lowering the leading end portion of the gunwale via a wire connected to the leading end portion of the trunk ladder.

(Function) Since the swing-out gangway of the present invention is constructed as described above, when the gangway in the retracted position is to be spanned to the wharf, the platform is switched to the use position by the first drive means and the base end of the gangway is moved. At the same time, the movable beam is switched to the use position by the second drive means, the tip of the movable beam is swung out an appropriate distance to the side, and then the wire is let out by the lifting drive means and the gangway is moved to the pier. It can be bridged to.

When moving the gangway from the above-mentioned usage state to the storage position, the tip side of the gunwale is raised by hoisting the wire using the lifting drive means, and then the platform is switched to the storage position using the first drive means and the platform is moved to the storage position. The gangway can be stored in a predetermined position on the upper deck by switching the movable beam to the storage position using the second drive means.

In this way, the proximal end of the gangway is rotatably supported by the platform via the rocking table around the vertical axis, and the tip end of the gangway is moved to the gunwale side via the movable beam by the second driving means. Since it can be swung out by an appropriate distance, even if the gangway is installed at the rear of the ship, the tip of the gangway S can be pulled toward the pier using a rope, or the tip of the gangway S can be swung out to the pier. To easily and efficiently span a gangway from the rear of a ship that is not in a berthed state to a wharf without having to build a pier to the pier, and to store it on the upper deck near the gunwale.

In addition, the second swing-out device is vertically fixed to the bridge deck at a position near the bottom of the bridge deck by utilizing the hull structure, so it does not take up space on the upper deck and does not impede traffic. .

Furthermore, since the second swinging device can adjust the swinging distance of the leading end portion of the gangway to the outside of the gunwale,
The gangway S can be placed at the optimal position on the pier depending on the situation of the pier.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

The swing out gangway of this embodiment is provided on the starboard upper deck D on the stern side from the central parallel part of the hull of the bulk carrier, and on the lower side of the bridge deck 50 directly above the upper deck D. It includes a gangway S, a first swinging device 1 that supports the proximal end of the gangway S, and a second swinging device 20 that supports the tip side portion of the gangway S.

The first swinging device 1 is for swinging out the base end of the gangway S to a use position outside the gunwale or retreating it to a storage position on the upper deck D, as shown in FIG.
As shown in FIGS. 2 and 7, there is a support 2 provided near the side of the upper deck D in a direction substantially perpendicular to the side G, and a support 2 on the support 2 in the longitudinal direction. Platform 3 is movably attached to the
The platform 3 is provided with a first drive device that drives the platform 3 alternately between a use position in which approximately 1/2 part of the outer end thereof is swung out to the side and a storage position in which it is retracted into the side.

On both sides of the support base 2, track portions made of opposing U-shaped members are provided, and the platform 3
The platform 3 is guided and supported by the support base 2 by rolling idlers 4 protruding from both sides of the platform 3 along the track section, thereby making the platform 3 freely movable in its length direction.

The reference numeral 5 is a stopper provided on the support base 2 to receive the locking tool 6 of the platform 3 and to restrict the movement range of the platform 3, and the reference numeral 7 is a stopper provided between the locking tool 6 and the support base. This is a lock pin that is removably inserted into the pin receiver 8 on the second side.

A rocking table 10 is connected to the upper surface of the outer end of the platform 3 so as to be rotatable about a vertical axis by a vertical pin 9, and a base end of the gangway S is connected to the front side of the rocking table 10. The parts are hinged together by a pair of left and right horizontal pins 11 so as to be swingable around a horizontal axis.

The first drive device is configured as follows.

That is, 1 on the upper deck D on the underside of the support platform 2.
A pair of sheaves 12a and 12b are provided, and a sheave 13 is also provided on the lower surface side of the inner end of the platform 3, and one end side of a wire 15 wound in multiple layers around the drum of a winch 14 provided on the upper deck D. 15a is connected to the lower side of the outer end of the platform 3 via one sheave 12a, and the other end side 15b of the wire 15 is connected to the other sheave 1.
2b and platform 3 via sheave 13
The winch 14 is connected to the lower side of the rear inner end of the winch 14.
One end side 15 of the wire 15 is rotated in the normal direction.
The wire 15 is fed out and the other end 15b is wound up to move the platform 3 to the use position, while the winch 14 is reversed to feed out the other end 15b of the wire 15 and one end 15a is wound up to move the platform 3 to the use position. The frame 3 is moved to a storage position.

Next, the second swinging device 20 swings out the leading end portion of the gunwale S by a desired distance out of the gunwale and stores it on the upper deck D, and also swings out the leading end portion of the gunwale S that has been swung out of the gunwale by a desired distance. It is for raising and lowering, and as shown in FIGS. 1 to 6, it is disposed forward of the first swinging device 1 in a direction substantially perpendicular to the gunwale G.

The second swing-out device 20 includes a pair of track members 21 which are disposed substantially horizontally in the vicinity of the lower side of the bridge deck 50 directly above the upper deck D and are vertically fixed to the bridge deck 50, and the track members 21. A movable beam 22 is attached to a movable beam 21 so as to be movable in its length direction, and the movable beam 22 is moved to a use position where its tip end part is swung out an appropriate distance outside the gunwale G, that is, onto the upper deck D. a second driving device that drives the retracted storage position, and a lifting drive that raises and lowers the tip side portion of the gunwale S swung out to the outside of the side G via a wire 24 passing through the outer end of the movable beam 22. Device 23
It is equipped with

The track member 21 is comprised of a pair of square cross-section members that are arranged horizontally slightly below the bridge deck 50 and are fixed to the bridge deck 50 by a plurality of support members 25 that have an H-shaped cross section.

The movable beam 22 is a closed cross-section member that is a little shorter than the track member 21, and the upper surface of its inner end (end on the hull center side) and a portion outward a predetermined distance from the inner end thereof are as shown in FIG. 3 sets of brackets 27 each
a, 27b are erected at the center and both sides in the width direction of the movable beam 22, and on both sides of the bracket 27a in the center are guide idlers 2 that are rotatable around a vertical axis.
8a is attached so that each guide idler 28a comes into contact with the web side surface of the track member 21, and a idler ring 28b rotatable around a horizontal axis is attached to the side bracket 27b so that each idler 28
b rolls along the track portion of the track member 21.

The movable beam 2
2 is supported by the track member 21, and the movable beam 22 is guided by the track member 21 via the total of four guiding idlers 28a.

As shown by solid lines in FIGS. 3 and 6, when the movable beam 22 is swung outward to the maximum extent, the brackets 27a and 27b on the outer end side are connected to the locking plate on the outer end of the track member 21. 26 and the locking mechanism 3 on the side of the movable beam 22
The lock pin 31 can be locked by detachably fitting it into the locking tool 32a on the side of the support member 25 from below.

Further, reference numeral 32b is a locking tool for locking the movable beam 22 when the gunwale S is swung out just outside the side G, and reference numeral 32c is a locking tool for storing the gunwale S on the storage platform 33 on the upper deck D. This is a locking device for locking the movable beam 22 when the beam is being moved.

Note that when the movable beam 22 is swung out a desired distance, the movable beam 22 is
To enable locking, locking devices 32d to 32g are also provided at appropriate intervals between the locking devices 32a and 32b.

The second drive device is configured as follows.

That is, symbols 35a, 35b, 36a, 36b are sheaves provided on the upper deck D, and symbols 37a, 36a, 36b are sheaves provided on the upper deck D.
37b, 30, and 40 are sheaves provided on the lower side of the bridge deck 50, 38a and 38b are sheaves provided on the track member 21, and 41 is a wire end provided at the upper inner end of the movable beam 22. One end 42a of a wire 42, which is a fixing device and is wound in multiple layers around the drum of a winch 34 provided on the upper deck D, is fixed via a sheave 35a, a sheave 36a, a sheave 37a, a sheave 38a, and a sheave 39. The wire 42 is connected to the tool 41 and
The other end side 42b has a sheave 35b and a sheave 36.
b, sheave 37b, sheave 38b and sheave 40
By rotating the winch 34 in the normal direction, one end 42a of the wire 42 is let out, and the other end 42b is wound up to move the movable beam 22 out of the gunwale G by the required length. At the same time, by reversing the winch 34, the other end 42b of the wire 42 is let out, and the one end 42a is wound up to move the movable beam 22 inward (towards the center of the ship).

The elevating drive device 23 is configured as follows.

That is, a winch 23a is provided inside the central portion in the length direction of the movable beam 22, and two wires are wound around the drum of the winch 23a in the same direction.
The wires 24a and 24b are connected to the movable beam 22 through a double sheave 45 inside the outer end of the movable beam 22.
The wires 24a and 24b are guided downward from the wire insertion hole at the outer end of the guide block 47.
It is connected to each side of the tip end portion of the gangway S via a pair of sheaves 47a and 47b.

By rotating the winch 23a in the normal direction, both the wires 24a and 24b are fed out, and the gangway S
While lowering the tip side of the winch 2,
By reversing wire 3a, both wires 24a, 2
4b and the tip side portion of the gangway S can be hoisted up.

In the swinging out gangway explained above, the base end of the gangway S can be swung out to the side of the ship by the first swinging device 1, or can be moved onto the storage platform 33 on the upper deck D, and the second swinging device 20
This makes it possible to swing out the tip side of the gangway S by an appropriate distance to the outside of the side G or move it onto the storage platform 33 on the upper deck D, as necessary. Since it can be raised and lowered as appropriate, it can be brought to the berth without using a rope to pull the tip of the gangway S toward the pier or building a pier between the tip of the gangway S and the pier. The gangway S can be easily and efficiently spanned from the unskilled rear side of the ship to the wharf, and can be stored on the upper deck near the gunwale.

Furthermore, since the second swinging device 20 is vertically fixed to the bridge deck at a position near the lower side of the bridge deck 50 by utilizing the ship's hull structure, the space on the upper deck D is widened and traffic efficiency is improved. .

In addition, since the second swinging device 20 can adjust the swinging distance of the tip side portion of the gunwale S to the outside of the gunwale G, the gunwale S can be spanned at an optimal position on the pier depending on the situation of the pier.

In addition, the platform 3 of the first swinging device 1
The movable beam 22 of the second swing-out device 20 may be configured to be driven by a rack and pinion mechanism, or may be configured to be driven by a hydraulic cylinder or an air cylinder.

(Effect of the invention) As explained above, in the swinging out gangway of the present invention, the base end of the gangway can be swung out to the outside of the gunwale or stored on the upper deck inside the gunwale by the first swinging device, and 2. The leading end of the gunwale can be swung out to the outside of the gunwale and raised or lowered by the swing out device, or it can be stored from outside the gunwale onto the upper deck inside the gunwale, so the first drive means, the second drive means, and the elevating drive can be moved. Just by operating the ship, the gangway can be easily and efficiently spanned or stored from the side of the rear of the hull when the ship is not berthed, and the ship's hull structure is used to provide a second swing-out device. As a result, the space on the upper deck becomes wider and traffic efficiency improves, and the distance that the tip end of the gangway is swung out from the side can be adjusted, so the gangway can be placed at the optimal position on the pier depending on the pier situation. You can get benefits such as being able to do things.

[Brief explanation of drawings]

The drawings show an embodiment of the present invention, in which Figure 1 is a plan view of the swing-out gangway, Figure 2 is a side view of the same, and Figure 3 is a side view of the same.
The figure is a plan view of the second swinging device, FIG. 4 is a sectional view taken along the line of FIG. 3, FIG. 5 is a sectional view taken along the line of FIG. 3, FIG. 6 is a front view of the second swinging device, and FIG. FIG. 1 is a sectional view taken along the line of FIG. G...Side, D...Upper deck, S...Gender, 50
... Bridge deck, 1 ... First swinging device, 2 ...
Support stand, 3... Platform, 9, 11...
Pin, 10... Rocking table, 12a, 12b, 13...
...Sheave, 14...Winch, 15...Wire,
20... Second swinging device, 21... Track member,
22...Movable beam, 23a...Winch, 24
a, 24b... wire, 34... winch, 35
a, 35b, 36a, 36b, 37a, 37B,
38a, 38b, 39, 40... sheave, 42...
...Wire, 45...Double sheave, 47a, 47
b... Sheave.

Claims (1)

[Scope of Claim for Utility Model Registration] In a swing-out gangway that is stored on the upper deck near the gunwale at the rear of the ship, a first swing-out device that supports the proximal end of the gunwale and a second swing-out device that supports the tip side of the gunwale are provided. The first swinging device includes a support base provided on the upper deck near the side in a direction substantially perpendicular to the side; a platform that is freely attached to the platform; a rocking table that is connected to the outer end of the platform so as to be rotatable about a vertical axis and supports the base end of the gangway so as to be swingable about a horizontal axis; a first drive means for driving the platform alternately between a use position where the outer end of the platform is swung out to the side of the ship and a storage position where the outer end of the platform is retracted into the side; A track member is arranged near the lower side of the upper bridge deck, substantially perpendicular to the ship's side and substantially horizontally, and is vertically fixed to the bridge deck, and is attached to the track member so as to be movable in its length direction. a second driving means for driving the movable beam alternately between a use position in which the outer end portion of the movable beam is swung out to the side by an appropriate length and a storage position in which the outer end portion thereof is retracted into the side; 1. A swing-out gangway comprising a lifting drive means for raising and lowering a tip end portion of the gangway via a wire connected to the tip end portion of the gangway via a sheave at an outer end.