JPH06305577A - Marine cargo ramp device - Google Patents

Abstract

PURPOSE:To efficiently perform loading and unloading cargos without generating interference with running on a ramp of a cargo transfer feeding self-propelling vehicle by providing a lift mechanism of the ramp, which enables the self-propelling vehicle to run, on a carriage runnable on a quay. CONSTITUTION:After positioning a ramp device in a loading position of a cargo ship 2 coming alongside the quay, a base 11a of a carriage 11 is landed. Next by actuating a hydraulic cylinder 12, after lifting a central stage 8, a hydraulic cylinder 21 is actuated to land the point end part of a quay side ramp 9 onto a quay 1. Then by running a self-propelling vehicle of mounting a container, after positioning it on the central stage 8 from the quay side ramp 9, the hydraulic cylinder 12 is further actuated, and the central stage 8 is lifted together with both side ramps 9, 10. Next by actuating a hydraulic cylinder 23, a point end part of the ship side ramp 10 is landed onto a desk 2b of the ship 2. Thereafter, by running the self-propelling vehicle positioned on the central stage 8, the mounted container is loaded in a prescribed position on the deck 2b.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cargo handling lamp device for loading and unloading cargo on a cargo ship by a self-propelled vehicle.

[0002]

2. Description of the Related Art Recently, in order to speedily transport cargo by sea, speeding up of cargo ships is being promoted, and at the same time, speeding up of cargo handling such as loading and unloading of cargo is required. . Loading cargo from the quay onto the freighter,
Alternatively, for example, a device as shown in FIG. 7 is known as one of devices for quickly loading and unloading a cargo ship onto and from a quay.

As shown in FIG. 7, the ramp 3 is bridged from the quay 1 toward the ship side 2a of the freighter 2 docked with the quay 1. Self-propelled vehicle 4 for transporting cargo 5 on the quay 1
A self-propelled vehicle 4 mounted on the top of the freighter 5 travels from a pier 1 to a table 6 provided on a deck 2b of the freighter 2 through a ramp 3 laid on the side 2a of the freighter 2. Then, the cargo 5 is placed on the stand 6. In this way, the cargo 5 is loaded on the table 6 provided on the deck 2b of the cargo ship 2. The loading and unloading of the cargo 5 from the cargo ship 2 is performed by the operation reverse to the above.

[0004]

SUMMARY OF THE INVENTION As described above,
When loading the cargo 5 from the quay 1 through the ramp 3 and on the deck 2b of the cargo ship 2, the following problems occur. Quay 1
The distance h between the deck 2b of the cargo ship 2 and the upper surface 1a of the quay 1 which is berthed on the shore greatly fluctuates when the cargo ship 2 is empty, that is, when the cargo is initially loaded and when the cargo is fully loaded, or depending on the tide level. . That is, the distance h between the deck 2b of the cargo ship 2 and the upper surface 1a of the quay 1 is large when the cargo ship 2 is unloaded, that is, at the beginning of cargo loading.

As described above, when the distance h between the upper surface 1a of the quay and the upper surface of the deck 2b becomes large, the inclination angle θ of the ramp 3 bridged from the quay 1 to the ship side 2a becomes large. It becomes difficult for the self-propelled vehicle 4 for transporting cargo having the cargo 5 to travel. In order to reduce the inclination angle θ of the lamp 3, a long lamp 3 is required, which requires a large area and makes it difficult to bridge the lamp 3.

In order to solve the above-mentioned problems, the ballast of the cargo ship 2 when the cargo is empty is adjusted to deepen the draft of the hull, and the distance h between the upper surface 1a of the quay and the deck 2b of the cargo ship 2 is adjusted. It is being made smaller. However, it takes a lot of time to adjust the ballast, the cargo handling time becomes long, and this cannot be performed when the ship does not have a ballast tank or the ballast adjustment is difficult.

Therefore, an object of the present invention is to solve the above-mentioned problems, and to load or unload cargo onto or from a cargo ship docked on a quay, which travels on a ramp laid from the quay toward the ship. When using a self-propelled vehicle for transport, even if the difference in height between the deck of the cargo ship and the upper surface of the quay fluctuates due to the cargo of the cargo ship or the tide level, the ramp inclination and ballast adjustment of the hull are required. Without the need for an almost constant gradual angle, this allows cargo to be loaded or unloaded efficiently in a short time without hindering the traveling on the ramp of the self-propelled vehicle for cargo transportation. It is to provide a lamp device.

[0008]

SUMMARY OF THE INVENTION A marine cargo handling ramp device according to the present invention is for moving a trolley on a quay, a ramp on which a self-propelled vehicle is capable of traveling, and raising and lowering the ramp. The lamp includes a central stage that is moved up and down by the elevating mechanism, a quayside lamp that is axially attached to one side of the central stage, and a ship-side lamp that is axially attached to the other side of the central stage. And a hydraulic cylinder for vertically moving each of the quayside lamp and the ship-side ramp is provided at each of the shaft mounting portions of the central stage and the quayside-side lamp and the ship-side lamp. It is characterized by the fact that

[0009]

According to the apparatus of the present invention, the lamp includes a central stage which is elevated and lowered by an elevating mechanism, a quayside lamp which is axially attached to one side of the central stage, and a ship-side lamp which is axially attached to the other side of the central stage. Therefore, the central stage can be positioned at any height, with the quayside lamps and the boatside lamps pivotally mounted on both sides of the central stage.

Therefore, by lowering the central stage so that the pier on the quay side is gently inclined, the self-propelled vehicle for cargo transportation on the quay, which is loaded with cargo, passes through the pier on the quay side, It can be easily driven to the central stage, and by raising the central stage so that the ship side ramp is located at almost the same height as the deck of the cargo ship, the ship side ramp is on a deck in a substantially horizontal state. The self-propelled vehicle for cargo transportation on the central stage
It can be easily driven on the deck of a cargo ship through the side ramp. As a result, even if the distance between the deck of the cargo ship and the upper surface of the quay changes depending on the cargo state or tide level of the cargo ship, the ramp of the center stage allows the self-propelled vehicle to travel smoothly from the ramp to the deck. .

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, the device of the present invention will be described with reference to the drawings. 1 is a schematic front view showing an embodiment of the apparatus of the present invention, FIG. 2 is a schematic plan view thereof, and FIG. 3 is a schematic side view thereof. As shown in the drawings, in the device of the present invention, a lamp 7 includes a central stage 8 horizontally supported on a carriage 11 so as to be able to move up and down, a quayside lamp 9 axially attached to one side of the central stage 8, It consists of a ship side lamp 10 pivotally mounted on the other side of the central stage 8.

The central stage 8 of the ramp 7 is moved by a lifting mechanism composed of four hydraulic cylinders 12 for lifting the ramp.
It is supported so that it can move up and down on the 11 as follows. That is, on the base 11a of the dolly 11, almost four units of the central stage 8 are mounted.
Four hydraulic cylinders 12 for raising and lowering the ramp that support the corners are erected. A pulley 13 is provided at the top of each rod 12a of the hydraulic cylinder 12, and the pulley 13 has a chain 14
Is hung around. One end of the chain 14 is fixed to almost four corners of the central stage 8, and the other end of the chain 14 is fixed to the carriage 11.

Between the lower surface of the central stage 8 and the upper surface of the dolly 11, the first rod 15 and the second rod 15 whose central portions are axially attached to each other on both sides in the longitudinal direction of the central stage 8 in a scissor shape.
A rod 16 is attached. The upper end 15 of the first rod 15
a is pivotally attached to one end of the lower surface of the central stage 8, and its lower end 15b is movably fitted into a guide groove 17 provided on the upper surface of the carriage 11. Then, the lower end 16 of the second rod 16
b is pivotally attached to one end of the upper surface of the truck 11 and has an upper end 16a.
Is movably fitted in a guide groove 18 provided on the lower surface of the central stage 8. As shown in FIG. 3, the first rod 15 and the second rod 16 provided on one side in the length direction of the central stage 8 and the first rod 15 ′ and the second rod 16 ′ provided on the other side are , Are connected to each other by a plurality of horizontal rods 19.

Accordingly, four ramp lifting hydraulic cylinders
When the rods 12a are driven synchronously and the rods 12a are extended, the central stage 8 is pulled by a chain 14 wound around a pulley 13 at the top of the rods 12a, and the central stage 8 is pivotally attached to both ends of the central stage 8. Together with the ramp 9 and the ship-side ramp 10, it rises from the base 11a of the truck 11. On the other hand, when each rod 12a of each of the four ramp lifting hydraulic cylinders 12 is contracted,
The central stage 8, together with the quayside ramp 9 and the boatside ramp 10 pivotally attached to both ends of the central stage 8, descends onto a base 11a of a carriage 11 as shown by a two-dot chain line in FIG. At this time, the first rod 15 and the second rod 16 whose center portions are axially attached to each other like scissors are mounted between the lower surface of the central stage 8 and the upper surface of the dolly 11, so that the central stage 8 can be raised and lowered in a horizontal state.

The central stage 8 and the quayside ramp 9 are axially attached by a plurality of pins 20 provided in the width direction, and a plurality of pins 20 are attached to the axial attachment portions of both pins 20. A hydraulic cylinder 21 is attached as a shaft for vertically moving the quayside ramp 9. Similarly, the central stage 8 and the ship-side lamp 10 are axially mounted by a plurality of pins 22 provided in the width direction thereof, and the plurality of pins 22 are mounted on the shaft mounting portions of the two pins 22. As ship side lamp
A hydraulic cylinder 23 for moving the 10 up and down is attached.

As shown in the enlarged front view of FIG. 4, a flap is provided at the tip of each of the quayside ramp 9 and the boatside ramp 10.
24 is pivotally attached by a pin 25, and the flap 24 allows the tip ends of the quayside lamp 9 and the shipside lamp 10 to be landed in a planar manner.

Reference numeral 26 is a wheel of the carriage 11, and 27 is a hydraulic cylinder for raising and lowering the base 11 provided near the wheel 26 for bringing the base 11a of the carriage 11 into contact with or away from the ground. . Operate the hydraulic cylinder 27 for raising and lowering the base,
By landing 11 bases 11a, the load applied to the carriage 11 can be supported by the bases 11a.

In order to prevent the truck 11 from tipping over when a load-carrying self-propelled vehicle traveling on the lamp 7 exerts a load on the lamp 7, particularly on the ship-side lamp 10, FIG. As shown in the plan view, a plurality of unbalanced load receivers 28 are provided on both sides in the width direction of the base 11a of the bogie 11. 29 is a dolly 11 provided on the dolly 11.
Is a drive source for driving the respective hydraulic cylinders for the movement of, the elevation of the lamp, the elevation of the base 11a, and the like.

FIG. 6 is a schematic perspective view showing a loaded state of containers by the above-described cargo handling lamp device of the present invention. As shown in FIG. 6, the cargo handling ramp device A of the present invention is positioned at the container loading position of the container transportation freighter 2 docked on the quay 1. When the loading / unloading device A is moved by the dolly 11, the central stage 8 of the ramp 7 is raised to some extent together with the quayside ramp 9 and the boat side ramp 10 on both sides of the hydraulic cylinders 12 for raising and lowering the ramps, and the hydraulic cylinders 21 and 23. By quayside lamp 9
And the ship side lamp 10 is raised appropriately.

In this way, after the cargo handling lamp device A is located at the predetermined cargo handling place, the hydraulic cylinder 27 for raising and lowering the base is used.
To land the base 11a of the carriage 11. Then
The central stage 8 of the ramp 7 is arranged on both sides of the central stage 8 so that the ramp lifting hydraulic cylinder 12 is operated so that the quayside ramp 9 is in a gently inclined state on which the container transporting vehicle 4 can easily travel. Quay side lamp 9 and ship side lamp
It is raised together with 10, and the hydraulic cylinder 21 is operated to land the tip end flap 24 of the quayside ramp 9 on the quay 1.

Next, the self-propelled vehicle 4 on which the container 5'is mounted is driven on the quay 1, and the quay side ramp 9 of the ramp 7 is driven.
And is positioned on the central stage 8. At this time, the slope of the quayside ramp 9 is gentle, so that the vehicle 4 on which the container 5'is mounted can easily travel on it.

Then, the hydraulic cylinder 12 for raising and lowering the ramp is further actuated, and the central stage 8 is moved to both sides of the central stage 8 until the central stage 8 is in substantially the same horizontal position as the upper surface of the deck 2b of the cargo ship 2 docked on the quay 1. It is raised together with the quayside lamp 9 and the shipside lamp 10. Next, the hydraulic cylinder 23 for vertical movement of the boat side ramp 10 is operated to lower the boat side ramp 10. Thus, the tip flap 24 of the ship-side lamp 10
Landed on the container loading deck 2b of the freighter 2 and ramped on the ship side
10 is laid on the deck 2b.

As described above, the lifting and lowering of the central stage 8 of the ramp 7 by the hydraulic cylinder 12 for lifting and lowering the lamps is provided between the lower surface of the central stage 8 and the upper surface of the carriage 11 so that the central portion of the central scissors is mutually scissor-shaped. It is carried out via the first rod 15 and the second rod 16 which are axially mounted. Therefore, the central stage 8 moves up and down while being held horizontally, and is also held horizontally when rising.

Next, the self-propelled vehicle 4 equipped with the container 5'located on the central stage 8 of the ramp 7 is run, passed through the ramp 10 on the ship side, and is provided on the deck 2b of the cargo ship 2. The container 5 ′ is moved toward the stand 6, and the container 5 ′ is placed on the stand 6. In this way, the container 5 '
Are loaded at a predetermined position on the table 6 provided on the deck 2b.

As described above, even if the distance between the deck 2b of the cargo ship 2 and the upper surface 1a of the quay 1 varies depending on the cargo state or tide level of the cargo ship 2, the central stage 8 moves up and down so that the ship-side ramp 10 is almost removed. Since the vehicle is kept horizontal, the traveling vehicle 4 can smoothly travel from the ramp 7 onto the deck 2b. The loading and unloading of cargo from the cargo ship 2 onto the quay 1 is performed by the reverse operation of the above.

[0026]

As described above, according to the apparatus of the present invention, the loading or unloading of cargo on a cargo ship docked on the quay is carried on a ramp that is laid from the quay toward the ship. When using a self-propelled vehicle for cargo transportation,
Even if the difference in height between the deck of the cargo ship and the upper surface of the quay changes due to the cargo of the cargo ship or the tide level,
It is possible to make an almost constant and gentle angle without the need to adjust the ballast of the hull, so that the cargo traveling self-propelled vehicle will not be hindered from traveling on the ramp and the cargo can be efficiently transported in a short time. There are industrially useful effects that can be loaded or unloaded.

[Brief description of drawings]

FIG. 1 is a schematic front view showing an embodiment of the device of the present invention.

FIG. 2 is a schematic plan view of FIG.

FIG. 3 is a schematic side view of FIG.

FIG. 4 is an enlarged schematic front view showing a flap portion of a lamp tip portion in the device of the present invention.

FIG. 5 is a schematic plan view showing an eccentric load receiving portion of the truck in the device of the present invention.

FIG. 6 is a schematic perspective view showing a loaded state of containers according to the device of the present invention.

FIG. 7 is a schematic perspective view showing a loading state of cargo by a conventional device.

[Explanation of symbols]

 A cargo handling ramp device, 1 quay, 1a quay upper surface, 2 freighter, 2a ship side, 2b deck, 2b deck, 3 ramp, 4 self-propelled vehicle, 5 cargo, 5'container, 6 stand, 7 ramp, 8 central stage, 9 quayside Ramp, 10 side ramp, 11 truck, 11a base, 12 ramp hydraulic cylinder for lifting, 13 pulley, 14 chain, 15 1st rod, 16 2nd rod, 17 guide groove, 18 guide groove, 19 horizontal rod, 20 pin , 21 hydraulic cylinder, 22 pin, 23 hydraulic cylinder, 24 flap, 25 pin, 26 wheels, 27 base lifting hydraulic cylinder, 28 unbalanced load receiver, 29 drive source.

 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Toshiyuki Adachi 1-2-1, Marunouchi, Chiyoda-ku, Tokyo Nihon Kokan Co., Ltd. (72) Hideo Yamaga 5-6-4 Tsukiji, Chuo-ku, Tokyo Mitsui Shipbuilding Co., Ltd. (72) Inventor Yasuo Terasawa 5-6-4 Tsukiji, Chuo-ku, Tokyo Mitsui Shipbuilding Co., Ltd. (72) Inventor Shin Horiba 2-5-1 Marunouchi, Chiyoda-ku, Tokyo Sanryo Heavy Industries Co., Ltd. (72) Inventor Hajime Komatsu 1-1, Atsunoura-machi, Nagasaki-shi, Nagasaki Mitsubishi Heavy Industries, Ltd. Nagasaki Shipyard Co., Ltd.

Claims (1)

[Claims] 1. A trolley which can travel on a quay, a ramp provided on the trolley so that a self-propelled vehicle can travel, and a lifting mechanism for raising and lowering the ramp. A central stage that moves up and down by a mechanism, a quayside lamp that is axially attached to one side of the central stage, and a ship-side lamp that is axially attached to the other side of the central stage. A marine cargo handling lamp device, wherein a hydraulic cylinder for vertically moving each of the quayside ramp and the boatside ramp is provided at each of the side ramps and the shaft-mounted portions of the boatside ramp.