JPS5822396B2 - Rampway inside a car carrier hold - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an improvement of the rampway in the hold of a car carrier, a so-called roll-on roll-off ship, which can carry out cargo handling while being propelled by vehicles.

The rampways of conventional roll-on/roll-off ships such as car carriers are summarized in Figures 1 and 2. Reference numeral 1 indicates a number of decks of the roll-on/roll-off ship, and each deck 1
A rampway 2 is provided between them.

The rampway 2 includes, for example, as shown in FIG. The rampway 2' provided between the two is arranged so as to communicate with the rampway 2' with a horizontal section 5 between them.

This horizontal portion 5 is a space where a vehicle entering from the rampway 2 can choose whether to turn in the direction of the arrow to proceed to the deck 1 or to proceed further down along the rampway 2'. This is an indispensable space in the conventional example shown in FIG. 1.2.

In this way, in the conventional example, when rampways are installed continuously as shown in Figure 1, it is necessary to provide a horizontal section for each deck, so it is necessary to provide a horizontal section for each deck. There is a risk that the leading edge of 3) in Figure 1 may come too close to the front wall 4 of the ship, and in such a case, the lowest rampway should be tilted in the opposite direction as indicated by 3' in Figure 1. There is a need to.

Therefore, in the conventional example, a car must alternately pass through slopes and horizontal areas to arrive at a designated deck, and to reach the lowest deck, it must drive on the deck directly above it and then take a ramp that slopes in the opposite direction. 3', which has the disadvantage of being inefficient in terms of vehicle running.

In addition, in the conventional example, some of the ramp ways are
There are also movable rampways with hinges at their upper ends, but such ramps are no different from the above-mentioned ramps in terms of vehicle running efficiency, so they are just as bad in terms of cargo handling efficiency.

The present invention aims to eliminate the drawbacks of the conventional example, and the present invention provides a rampway in the hold of a roll-on/roll-off ship in a straight line from the entrance of the rampway to each deck 1. In other words, the aim is to improve cargo handling efficiency by arranging the cargo handling efficiency without providing a horizontal section.Specifically, the hold rampway is arranged in two rows in the direction of travel, depending on the number of decks that are to be handled at the same time. Alternatively, the rampway may be divided into three rows, and each divided rampway between each deck may be configured by a combination of a fixed rampway and a movable rampway whose upper end is hinged, and various combinations of bridge construction modes of the movable rampway may be used. The feature is that a straight straight rampway can be formed directly from the rampway entrance on any deck of the same number as the number of rows.

Next, the present invention will be explained in detail with reference to FIGS. 3 to 5.

FIG. 3 is a side view of the rampway of the present invention, and as is clear from this figure, in the present invention, each ramp 2 that connects a large number of decks 1, when viewed from the side, In other words, the rampways are arranged in a straight line, with no horizontal portion between each rampway.

Each rampway is made up of a plurality of parallel rows of ramps as shown in FIG. 4, for example.

That is, in FIG. 4, a rampway is provided between the decks 11 and 12, in which a fixed ramp 21 and a movable ramp 31 whose upper end is hinged to the deck 11 are arranged side by side.
A rampway is provided between the decks 12 and 13, in which a fixed ramp 22 and a movable ramp 32 whose upper end is hinged to the deck 12 are installed in parallel. A rampway is provided in which two movable ramps 33S and 33P, each hinged to the deck 13, are arranged side by side.

In this case, it is assumed that the fixed ramps 21 and 22 are arranged in a staggered manner.

In this example, since the rampway is constructed by arranging two rows of ramps in parallel in the running direction, it is possible to simultaneously form direct rampways to any two decks.

This will be explained in detail next. (1) In the case of cargo handling on decks 13 and 14.

The ramps 31, 32, and 333 form a ramp as shown and are seratonized to maintain the ramp 33P at the same level as the deck immediately above in the direction of the dotted line.

(2) In the case of cargo handling on decks 12 and 14.

Ramp 31.33P, 33S are set, ramp 32
will be uploaded.

(3) In the case of cargo handling on decks 11 and 14.

The ramp 31 is an up ramp 32, 33P.

33S is set.

(4) In the case of cargo handling on decks 12 and 13.

Ramps 31 and 338 are set and ramp 32.・-33
P goes up.

(5) In the case of cargo handling on decks 11 and 13.

Ramps 31 and 338 are raised, and ramps 32° and 33P are set.

(6) In the case of cargo handling on decks 11 and 12.

Ramps 31 and 32 are up (ramps 33P, 338 are irrelevant in this case).

In this way, among the rampways installed between each deck, “
By combining various bridging modes of movable ramps, it is possible to form a rampway directly from the rampway entrance on any two decks in a straight line without passing through the horizontal deck section. It will be possible.

1 In the above example, two rows of inclined plates are arranged in parallel in the traveling direction, and a straight rampway is constructed on any two decks at the same time.

In roll-on/roll-off ships, cargo handling is rarely carried out on three or more decks at the same time, so generally two rows are sufficient as in the above examples.
It will be obvious that if a roll-on/roll-off vessel is desired to handle cargo on three decks at the same time, each rampway may be constructed with three rows of ramps installed side by side.

Figure 5 shows a case where the rampway has 3 stages and the number of decks is 4 or more.
(the base is a fixed ramp), when used in the same combination as in Figure 4, a straight rampway is constructed directly on any two decks selected regardless of the number of decks. can do.

As described above, according to the present invention, in a roll-on/roll-off ship having multiple decks, if a linear rampway is formed from the rampway entrance on two or more arbitrarily selected decks, i. Unlike the conventional example, which requires a horizontal running space between each rampway, it improves cargo handling efficiency and has a remarkable practical effect.

[Brief explanation of drawings]

1 and 2 show a conventional example. FIG. 1 is a side view of a roll-on/roll-off ship showing a rampway in a roll-on/roll-off ship, and FIG. 2 is a perspective view of the rampway. Figures 3 to 5 show embodiments of the present invention, Figure 3 is a side view of a roll-on/roll-off ship equipped with the rampway of the present invention, Figure 4 is a perspective view of the rampway, and Figure 5 is a ramp. FIG. 3 is a plan layout diagram of ways. 1...Deck, 2...Rampway, 5...Horizontal part, 11-14...Deck, 21.22,24,25.
... Fixed ramp, 31-36... Movable ramp.

Claims (1)

[Claims] 1 Divide the internal rampway into 2 or 3 rows depending on the number of decks that handle cargo simultaneously in the travel direction. Each divided rampway between each deck can be divided into a fixed ramp and a movable ramp with the upper end hinged. The movable ramp is constructed in combination with a movable rampway, and by various combinations of the bridge configurations of the movable ramp, a linear rampway can be formed directly from the rampway entrance on any deck of the same number as the number of rows. Rampway in the hold of a car carrier.