FI110178B - A cargo hatch swing device that covers the cargo hold of the cargo ship - Google Patents

Description

110178

Cargo Door Swing Device Covering Cargo Door Cargo Door

The present invention relates to a cargo hatch pivoting device which covers one or more cargo hatch sections from a substantially horizontal position to a substantially vertical position and vice versa, and which pivoting means is pivotable! a fixed structure of the ship, and one end of which the pivoting means is pivotally connected to a pivoting actuator such as a hydraulic cylinder.

It is known that the loading and unloading port of a ship's cargo space is covered at least during the journey by a cargo hatch, which typically consists of two or more, for example, four sections. The blocks are generally hinged to each other and secured at the seams with seals to provide at least weather tightness. With the cargo hatch closed, the cargo hatch blocks are located substantially horizontally and in succession, completely covering the cargo space opening. The cargo hatches of four or more blocks are usually provided with two different actuators, the first of which pivots the first two actuator-side blocks upright, whereby the last 20 blocks are slidably guided closer to the actuator end so that the last preceding block reaches the pivoting device. The rotary actuator is operated by another actuator and rotates the last two blocks * ·: · upright next to the previous ones. In the open position, the opening is released; for unloading or loading. The above is the first action ···. 25 units, turning device and its actuator in the unit. In practice, however. v. A similar arrangement shall be provided on each side edge of the cargo space aperture.

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In solutions such as the above, the pivoting device and its actuator are conventionally located outside the edge around the porthole opening. However, this causes practical problems, in particular with regard to the use of space, since the space between the cargo edge and the ship's side is often narrow and the ship is often tapered from this area and often either a lift is placed in this area. -. ···. rin pillar, container support pillar or reversible walkway. To get the pivoting device

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to accommodate that space, the space must either be widened as possible by narrowing the cargo space aperture, widening the ship, or narrowing others.

':': Devices in mode.

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It is an object of the present invention to provide a turning device which avoids the above problems. The pivoting device according to the invention is characterized in that the pivoting device is disposed at least partially inside the cargo space opening in the transverse and longitudinal direction of the opening, and that the hinging and actuating means of the pivoting device 5 are located outside the cargo space. In this case, the pivoting device does not require any space between the opening edge and the ship's side, which is a considerable advantage over current solutions. The invention also provides a significant improvement in occupational safety, since the turning device is not in the passage. It is also an advantage that solution 10 does not use the cargo space.

A preferred embodiment of the invention is characterized in that a notch is formed at the end of the cargo hatch block or at the edge of the opening for the pivoting member which is weather-tight when the hatch is closed.

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Another advantageous embodiment of the invention is characterized in that the actuators of the turning device are located outside the cargo space opening, whereby they are protected from the cargo and their maintenance is easier.

In the following, the invention will be explained in more detail by way of a preferred embodiment with reference to the accompanying drawings, in which: Fig. 1 is a schematic and side view of a four-section cargo hatch in a closed position.

Fig. 2 shows the same as Fig. 1, but in the step where the end-side copycat is driven upright by the first actuator.

Fig. 3 shows the same as Figs. 1 and 2, but in a step in which the pivoting means 30 has turned the latter pair of blocks upright by means of its actuator.

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Fig. 4 is a top view, taken in the direction of the letters A-A of Fig. 1, of a portion of the opening and the edge of the laser lid and showing the deflector and its actuator.

. ···. Figure 5 is a sectional view taken along line B-B of the figure.

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Figure 1 thus shows a side view of the cargo hatch consisting of four pivotable tilts in a closed position! Thus, in the closed position of Figure 1, the cargo hatch is known to completely cover the opening of the cargo space 5, with the blocks 1-4 being substantially horizontal.

A first actuator 6 is connected to block 1, the other end of which is fixed to the fixed structure of the ship. In addition, the actuators for the hatch cover include a pivoting device 7, shown in the drawings in shaded form, and its actuator 8.

! For example, hydraulic cylinders can be used as actuators 6 and 8.

10 The pivoting device is traditionally a lever member having a shorter shaft and a longer shaft, which is pivotally attached to the solid structure of the ship at the junction of these arms. The actuator 8 of the pivoting device 7 is fixed to the shorter arm of the pivoting device and at one end is fixed to the ship. From Fig. 4, it is seen that, unlike the known rat rails, the pivoting device 7 is disposed at least partially inside the opening of the cargo compartment 5, in the transverse and longitudinal direction, and the hinging and actuating means 8 of the pivoting device 7 the lifting end is in the opening under the cargo hatch either in cargo space 5 or in the interior of the hatch structure. The edge of the opening is denoted by reference numeral 10 in Figure 4 and the side of the vessel by reference numeral 9. 20 Part of the turning device 7 and its actuator 8 are preferably located outside the opening of the cargo space 5.

. . ·. Figure 5 is a section along line B-B of Figure 4. It is found that, ···. a second notch 12 for a pivoting device 7 is formed in the peripheral iron 11 of the block 1 in a substantially trapezoidal shape. Reference numeral 13 denotes the edge of the opening on which block 1 is partially located. Further, reference numeral 14 denotes the necessary seals between the shaft and the hatch and the shaft and the opening of the opening. Equally, a notch could be made at the opening 13.

I «» · · v: 30 The opening of the hatch cover from position 1 is in principle known in the art. Initially, the first actuator 6 rotates the cargo hatch blocks 1 and 2 vertically, ···. 2. In this case, also the blocks 3 and 4 have slid closer to the end and the block 3 is located on the turning device 7. The pivoting device 7: at the end of the longer arm is a wheel which, when the pivoting device is pivoted by its actuator 8, comes against the counter surface of the block 3. The actuator 8 pivots the block 3 upright, whereby, due to the hinging, the block 4 becomes upright next to it. This position is shown in Figure 3.

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The closing of the cargo hatch is, of course, performed in the reverse order when the actuator 8 first begins to operate, in which case the turning device turns the blocks 3 and 4 as in the position shown in Fig. 2. Thereafter, the actuator 6 folds the blocks 5 1 and 2 down and finally comes to the closed position according to Fig. 1.

It will be apparent to one skilled in the art that the invention is not limited to the above embodiment, but may be varied within the scope of the appended claims. The cargo hatch opening and closing mechanism naturally includes 10 different locking and other mechanisms, for example, for keeping the hatches in an upright position. These and many other details are omitted from this specification and the drawings, and are not part of the invention.

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Claims (4)

1. Rotary device (7) for a cargo cover which covers the opening of the cargo compartment (5), by means of which the rotary device can rotate one or more of the cargo lid blocks (3, 4) from a substantially horizontal position to a substantially vertical position. - and vice versa, and which rotating device (7) is rotatably fixed with hinges to the fixed structure of the vessel and which one end of the rotating device is rotatably joined by an operating device (8) which causes the rotating device to move, such as with a hydraulic cylinder, characterized in that the turning device (7) is positioned at the end of the opening, at least partially inside the opening of the cargo compartment (5) in the transverse and longitudinal direction of the ship and that the turning device (7) of the turning device (7) is located outside the cargo space so that the lifting end of the turning device (7) lies in the cargo compartment (5). 2. A rotary device according to claim 1, characterized in that a cut (12) for the rotary device (7) is made at the end of the block lid (1) or in the canyon of the opening, which cut is weatherproof when the hatch is closed. Rotary device according to claim 1, characterized in that the cutter (12) is essentially in the form of a parallel staircase saw, that the upper part of the cutter is narrower than the lower part. • "4. Rotary device according to claim 1 or 2, characterized in that the rotating device's (7) actuators (8) are located outside the opening of the cargo compartment (5), whereby they are protected against the load and easier to during pouring. • «• • • • · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · I · t · • t III