JPS5924034B2 - Vehicle boarding and disembarkation equipment for roll-on roll-off ships - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a roll-on roll-off ship (including a car ferry ship) in which loaded vehicles can be boarded and disembarked from the ship by self-propulsion via a gangplank installed between a vehicle carrier and a quay. ) is related to the boarding and disembarkation equipment.

For roll-on roll-off ships, port conditions,
In some cases, loading and unloading of vehicles became impossible due to mutual changes in the tide level and the ship's draughts.

In other words, the tide level changes with respect to the height of the berthing wall, and the relative height between it and the ship's deck changes accordingly.This is also affected by changes in the ship's draughts, and the degree of this change is significant. In such cases, there was a problem in that it was not possible to board and disembark the onboard vehicle by self-propulsion.

In particular, conventional embarkation/disembarkation systems were of the so-called fixed hinge type in which the hinge point of the gangplank was fixed to the ship's hull, so the gangplank had poor adaptability to changes in the relative height of the ship to the quay. There was a constraint that entry and departure was possible only in specific ports where there was little fluctuation in the tide level and the height of the quay was within a predetermined range.

In addition, with this type of conventional boarding and disembarking device, it was necessary to adjust the height and slope of the boarding and disembarking decks in advance so that the vehicle could self-propel from the quay to each deck.

By the way, a device for making it easier to board and disembark a car in areas with large tidal differences was developed by the Special Publication Corporation of 1983-126.
There is a device shown in Japanese Patent No. 70.

This device is equipped with a support on the deck of the ship, a ramp door with one end attached to the support so that it can be raised and lowered, and
A lift base that can be connected to the lamp door is provided on the opposite side of the column, and a pantograph mechanism that lifts and lowers the base horizontally and a hydraulic machine that can raise and lower the base are installed on the lower surface of the lift base. However, in such a device, a hydraulic machine, like the pantograph mechanism, must be formed to operate the lift base separately from the rope for lifting and lowering the ramp door.

Therefore, the equipment cost is high and the structure is complicated.

Furthermore, when boarding or disembarking from a car, the user must separately operate the ramp door lifting rope, the pantograph mechanism, the hydraulic machine, etc., which is troublesome.

Moreover, although the lift base can be raised and lowered depending on its relative position with the lamp door, its maximum movable range is within the length of the piston stem, and there are structural limitations.

The present invention is an attempt to improve the drawbacks of the above-mentioned conventional boarding and disembarking devices, and its purpose is to provide vehicle boarding on roll-on roll-off ships that can be used under any harbor conditions, i.e., the height of the quay, the tide level, etc. The purpose is to propose a disembarkation device.

In other words, the vehicle boarding and disembarking device of the present invention connects a gangplank provided so as to extend outwardly and a gangboard provided inwardly to a hinge in the traveling direction of the vehicle, and fixes the hinge point to the hull. The deck is configured so that it can be moved up and down without tilting, and the deck on the inside of the ship is suspended by a wire so that it can be raised and lowered near the hinge point, and its inclination angle can be freely set. At the same time as engaging the rollers attached to the spanboard with the guide posts installed vertically on both sides of the
Pins for fixing the spanboard are inserted into the plurality of pin holes provided in the longitudinal direction of the pillar, so that the spanboard can be fixed at an appropriate position, thereby ensuring that the boarding and disembarkation equipment is secure under any port conditions. Furthermore, the boarding/disembarking device enables the use of multiple boarding/disembarking decks.

Next, one embodiment of the present invention will be described based on the drawings.

FIG. 1 shows an example in which the present device is installed on a roll-on roll ship having two upper and lower decks for boarding and disembarking vehicles. In the figure, the symbol S indicates the hull, 3 indicates the quay, and 4 indicates the water surface.

Figure 1 shows the upper and lower two-layer vehicle boarding and disembarking deck 1,
2 shows the state when the upper deck 1 is used for boarding and disembarking vehicles.

5°6 is a span plate attached to the plate so as to be movable in the vertical direction.

When forming a running track for a vehicle with this, these spanning boards are arranged side by side along the running direction of the vehicle, and the spanning boards are continuously connected to each other by hinge members as shown in FIG. 2A.

Incidentally, 13 is the shaft pin that constitutes the hinge member, 14.14
' is a bracket, and this bracket is provided with a shaft hole into which a shaft pin 13 is inserted.

Reference numeral 15 designates a flap plate that closes a gap between the spanning boards that are hingedly connected to each other, and 15a designates a pin that rotatably connects the flap plate.

Among the spanning boards, an apron (circuit) is pivotally attached to the tip of the spanning board 5 which extends outward from the ship, and is configured to be grounded on the quay wall 3.

- At the end of the gangplank 6 located on the inside of the turning vessel, a hook 17 is attached, as an example, as shown in detail in Fig. 8 (A) 2, and the gangplank 6 is fixed to the deck or the deck through this hook. It is removably connected to the stepped board 9.

In the illustrated example, the step board 9 is attached only to the lower deck 2, and is given an appropriate slope in advance.

In FIGS. 3 to 6, reference numerals 18 and 19 indicate struts that are vertically installed on both sides of the gangplank provided on the inside of the ship, and are made of channel steel or I-beam steel, for example.

As described later, these supports serve as guide members for moving the vehicle span plate in the vertical direction.

Namely, the channel-shaped cross-section strut 18 and the I-shaped cross-section strut 1
A set of two 9 is installed vertically on both sides of the gangplank 60 on the inside of the ship near the hinge point I, and guide and locking means as shown in the figure are attached to both sides of the gangplank 60. The span plate and the strut are configured to engage with each other.

That is, channel-shaped supports 18 are provided on the side surfaces of the gangplank 6.
A vertical roller 20 is installed, which is inserted into the concave surface of the roller and rotates vertically while contacting this surface, and is engaged with the column 18 as shown.

In addition, a horizontal roller 21 is attached to the lower surface of the spanning board 60 so as to extend almost horizontally, and is pressed against the side of the support 18 so that no impact is applied to the spanning board even when the hull is rocking. and make sure to keep it in the correct position.

Reference numeral 22 denotes a rotating shaft of the vertical roller, 23 a support bracket for the horizontal roller, 24 a lip provided in the support 18, and 25 a set pin for fixing the vertical roller, for example, an eye bolt or the like is used. This is inserted horizontally from the side of the support 18 into the adjustment holes 26 that are bored along the length of the support, and the vertical roller 20 is placed on top of this pin as shown in Fig. 4. , so as to support the spanning board 6 at an appropriate height.

Incidentally, reference numeral 25a is a stopper that is integrally provided on the set pin to prevent the set pin 25 from falling off.

On the other hand, as shown in FIGS. 5 and 6, the side surface of the spanning board 6 is brought into contact with the ■-shaped support 19 by a horizontal roller 27 mounted almost horizontally, and the vertical movement of the spanning board is facilitated via this roller. be carried out accordingly.

Reference numeral 28 denotes a set pin for fixing the spanning board, and this pin is an adjustment pin that is drilled at a predetermined interval at an appropriate position in the vertical direction of the support 19, as in the support 18. It is used by being inserted horizontally into the hole 29, and the lower surface of the span plate I is placed on the end of the pin and fixed so that it does not fall down.

Note that the reference numeral 28a indicates a stopper provided on the set pin.

The vertical movement of the spanning boards 5 and 6 is carried out by removing the set pins 25 and 28 from each support and then using a winch or the like or a wire W. After raising or lowering the spanning boards to the desired height, set them. After inserting the pins 25 and 28 into the adjustment holes 26 and 29 from the side of each support, rotate the stoppers 25a and 28a formed on the pins to prevent them from coming out, and then Place the spanning board 6 on the pin.

The gangplanks 5 and 6 are thus fixed as shown in FIG. 1, and a ramp is formed between the upper deck 1 and the quay 3 on which vehicles can run.

When the lower deck 2 is used for boarding and disembarking vehicles, the hinge point 7 of the spanning board is moved up and down with a chino, wire, etc., as shown by the chain line, to adjust the angle to allow vehicles to pass through.

When moving the gangplank 6 up and down, the upper deck 1 and the gangplank 6
and the gap (distance) between the lower deck 2 and the gangplank 6.
may differ.

In order to deal with this, a hook 1T is attached to the end face of the span plate 6 so as to be freely retractable as shown in FIG. 8, and the length t of the hook 17 is adjusted as appropriate depending on the width of the gap to ensure smooth connection. make it possible to do so.

Reference numeral 31 indicates a fixing pin of the hook 17, and 32 indicates a pin insertion hole for position adjustment.

Since the present invention has the above-described configuration, when the relative height between the deck of the ship and the quay wall 3 changes due to a change in the tide level, the spanning board can be fixed by a single wire W as shown in FIG. Since the inclination angle of the span plate can be freely set by raising or lowering the ramp plate, the slope can be formed at an angle that allows the vehicle to run on its own.

In addition, for ships with two upper and lower vehicle decks, it is possible to use multiple vehicle boarding decks divided into upper and lower sections, as shown by the solid line or the dashed-dotted line in Figure 1, so that the height of the quay can be adjusted accordingly. It can adapt to any changes in the tide level, etc., and there are no restrictions on boarding or disembarking the ship.

In addition, even if the vehicle boarding/disembarking deck 1.degree. 2 is a movable deck, the hinge point of the spanning board and the spanning board can be moved by wires, so the present device can be applied.

Furthermore, by adjusting the trim, heel, etc. of the hull, it is possible to always enter and leave the port regardless of the port conditions, and it is not affected by fluctuations in the tide level and has the advantage of being able to dock at all times.

In addition, according to the device of the present invention, since the guide struts are engaged with the rollers attached to the spanning board, the vertical movement of the spanning board is smooth and the safety is high even when the ship body rocks.

In addition, the Annai column has multiple pin holes in the longitudinal direction, and the spanning board can be fixed by inserting pins into these pin holes, so the spanning board can be securely fixed at the desired position. can.

Furthermore, in the conventional device, the pantograph mechanism and hydraulic machine had to be formed separately from the lift rope of the ramp door, but with the present invention, the inclination of the entire spanboard can be freely set using one wire. There is an advantage that the structure can be simplified and a low-mounted device can be provided.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, and FIG. 1 shows a roll-on roll-off ship having a two-layer vehicle boarding and disembarking deck, upper and lower.
A skeletal side view showing how this device is used, Figure 2A is a side view showing the hinge member for connecting the spanning board, the opening in the figure is a plan view of the same as above, and Figure 3 is the guide for raising and lowering the spanning board and the spanning board. FIG. 4 is a horizontal sectional view of the main part showing the relationship between the columns; FIG. 5 is a horizontal sectional view of the main part showing the relationship between the gangplank and other lifting guide supports; FIG. The figure is also a vertical cross-sectional view of the main part,
Figure 1 is a sectional view taken along the line ■ in Figure 6, Figure 8A is a side view showing the structure of the hook provided on the end face of the gangplank, the opening in the figure is a plan view of the same as above, and Figure 9A is the end of the upper deck. A front view of the hook receiving metal fitting provided in the section, and a side view of the opening in the same figure. S: Hull, 1: Upper deck, 2: Lower deck, 3: Quay, 4
: Water surface, 5, 6: Spanning board, γ: Hinge point, 1B, 19:
Guide post, 20: Vertical roller, 21: Horizontal roller, 25: Fixing set pin, 25a: Stopper, 26: Adjustment hole, 2
7: Horizontal roller, 28: Fixing set pin, 28a: Stopper, 29: Adjustment hole, 30: Receiver, W: Wire.

Claims (1)

[Claims] 1. In a roll-on roll-off ship having two upper and lower decks for boarding and disembarking vehicles, the vehicle gangplank installed on the outside of the ship and the vehicle gangboard installed on the inside of the ship are hinged in the direction of travel of the vehicle. At the same time, the hinge point is fixed to the hull, and the gangplank on the inside of the ship is suspended by a wire so as to be able to be raised and lowered near the hinge point, and its angle of inclination can be freely set. In addition, rollers attached to the spanning board are engaged with guide columns provided vertically on both sides of the spanning board, and pins for fixing the spanning board are inserted into the plurality of pin holes provided in the longitudinal direction of the pillars. A vehicle boarding and disembarkation device for a roll-on roll-off ship, characterized in that a gangplank is fixed at an appropriate position by using a roll-on roll-off ship.