JPH035193Y2 - - Google Patents

Description

[Detailed explanation of the idea] [Industrial application field]

This invention relates to a moving device for opening and closing a pontoon hatch cover using a derrick device on a ship.

[Prior Art] The opening and closing operations of pontoon-type hatch covers, which are widely used on cargo ships and the like, have been performed using a derrick device installed on the ship itself. When opening the hatch in the hold, the pontoon-type hatch cover was lifted from the hatch coaming using a derrick device and stored in a stack in a space such as the ship's side passage on the deck so as not to obstruct cargo handling.
It is good if there is enough space in the ship's side aisles, etc., and you can easily secure a place to store the pontoon type hatch cover, but in recent years, to improve cargo handling efficiency, the opening area of the hold mouth has become larger, making it difficult to store the pontoon type hatch cover. It has become difficult to secure a place. In addition, a derrick device was installed before and after the hatch coaming in the hold, and a winch platform was provided on which each winch of the derrick device was installed. It would be extremely convenient to use the space between the winch platform and the upper deck as a storage location for the hatch cover without interfering with cargo handling operations, but since it is within the minimum turning radius of the derrick equipment, this is not easy. It was not possible to pull it in and store it in a narrow space.

[Problem that the idea aims to solve]

This invention solves the above-mentioned conventional drawbacks, and allows the hatch combing of a pontoon type hatch cover by simply hoisting and lowering the cargo wire without having to rotate or raise the derrick device installed at the front and rear of the hatch cover. The object is to provide a moving device for transporting back and forth.

[Means to solve the problem]

This invention is based on a ship that is equipped with a derrick device before and after the hatch coaming on the upper deck and has a winch platform for the derrick device, in which a recessed notch is formed in the center of the winch platform. The derrick boom of the derrick device on the side that stores the pontoon hatch cover is fixed in a direction that matches the bow and stern line with an appropriate angle of elevation, and one end of the derrick boom of the derrick device that stores the pontoon type hatch cover is fixed in a direction that corresponds to the bow and stern line. A guide cable is connected to a position above the notch, a hanging fitting is suspended to the guide cable via a guide pulley, and a tension cable is attached to the hanging fitting. A tension line is provided on the cargo wire of the derrick device on the opposite side of the guide line and is adapted to be operated.

[Effect]

According to the above configuration, by hoisting up the cargo wire of one of the two derricks and lowering the cargo wire of the other derrick at the same time, the pontoon hatch cover suspended by the hanging fittings can be moved between the derricks. By moving the winch back and forth, it can be stored below the winch platform.

【Example】

An example will be described with reference to the drawings. As shown in FIGS. 1, 2, and 3, a hull 1
There is a derrick device D before and after the hatch combing 2.
1 and D2 are provided, and a pontoon type hatch cover 3 is placed on the hatch coaming 2. The derrick devices D1 and D2 are provided with a winch platform 4 on which winches for cargo handling are arranged, and a space is secured between the winch platform 4 and the upper deck 5 in which pontoon-type hatch covers 3 can be stacked and stored. ing. A recessed notch 19 is provided in the center of the winch platform 2, directly below the center of rotation of the derrick booms 6, 16. A relay pulley 18 is provided directly above the concave notch 19 of the winch platform 2 of the rear derrick device D2, and a guiding cable 9 is provided directly above the concave notch 19 of the winch platform 2 of the forward derrick device D1. eye plate 2
0 is set. The hanging fitting 11 is adapted to suspend the pontoon type hatch cover 3 with a hanging wire 17. Further, the tension cable 12 that is anchored to the rear cargo hook 15 is attached to the hanging fitting 11 via the relay pulley 18, and the guiding cable 9 that is attached to the front cargo hook 8 is attached to the hanging fitting. The eye plate 20 is connected to the eye plate 20 via a guide pulley 10. In the above configuration, the operation of opening and closing the pontoon type hatch cover 3 is described by operating the cargo wires 7 and 15 of the derrick devices D1 and D2 before and after the hatch coaming 2 on the upper deck 5, directly above the target pontoon type hatch cover 3. Position the hanging fitting 11. Then the hanging bracket 1
1 and pontoon type hatch cover 3 with hanging wire 1
Use 7 to hang it. In this state, when the cargo wire 7 of the derrick device D1 is wound up and the guide cable 9 is lifted, the guide pulley 10 moves forward on the guide cable 9 and is suspended below the guide pulley 10. The pontoon hatch cover 3 is then moved below the winch platform 4. In synchronization with the winding of the cargo wire 7 of the derrick device D1, the cargo wire 14 of the other derrick device D2 is unwound, and the tension cable 12 that is locked to the hanging fitting 11 is adjusted to stabilize the pontoon type hatch cover 3. It can be moved back and forth.

[Effect of the idea]

Since this invention is configured as described above, it produces the effects described below. This idea allows the pontoon type hatch cover to be opened and closed using a derrick device, by simply raising and lowering one end of the guide rope pulled by the cargo wire of the derrick device, and the guide pulley attached to the guide rope can be moved up and down. Since the pontoon type hatch cover suspended from the guide pulley can be moved, there is no need to operate a complicated derrick device, there is less load swing, and the pontoon type hatch cover can be moved within the minimum turning radius of the derrick device. The hatch cover can be stored easily and safely.

[Brief explanation of drawings]

Fig. 1 schematically shows a side view of this invention, Fig. 2 is an explanatory diagram showing the state of wire tension in the moving device of this invention, and Fig. 3 schematically shows a plan view of the winch platform section. This is what is shown. D1... Derrick device, D2... Derrick device, 2... Hatch combing, 3... Pontoon type hatch cover, 4... Winch platform, 5... Upper deck, 6... Derrick boom, 8...
... Cargo cargo, 9 ... Guide rope, 10 ... Guide pulley, 11 ... Hanging metal fittings, 12 ... Tension rope, 1
5... Cargo truck, 16... Derrick boom,
17... Hanging wire, 18... Relay pulley, 19...
...Concave notch, 20...Eye plate.

Claims (1)

[Scope of utility model registration request] In front and behind the hatch coaming 2 on the upper deck 5, winch platforms 4 having a space at the bottom are provided.
is equipped with derrick devices D1 and D2,
A concave notch 19 is provided in the center of the winch platform 4, so-called right below the center of rotation of the derrick booms 6 and 16, and a concave notch 19 is provided in the winch platform 4 of the rear derrick device D2. A relay pulley 18 is provided, and an eye plate 20 for closing the guide cable 9 is provided directly above the concave notch 19 of the winch platform 4 of the front derrick device D1.
hangs the pontoon hatch cover 3 with wire 1
The tension cable 12 is suspended from the cargo hook 15 at the rear, and the tension cable 12 is attached to the hanging fitting 11 via the relay pulley 18, and the guide cable 12 is attached to the cargo hook 8 at the front. This is a pontoon type hatch cover moving device using a derrick device, characterized in that the guiding rope 9 is locked to an eye plate 20 via a guide pulley 10 that is locked to a hanging fitting 11.