JP2017052418A - Rainproof device for ship cargo handling - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a rainproof device for ship cargo handling which enables reduction of work time for installation and removal, eliminates need for special control, and achieves weight reduction and good operability.SOLUTION: A rainproof device for ship cargo handling includes: a fixed frame 20 which is set so as to cover an outer peripheral edge part of a hatch 4; a connection annular body 21 which is detachably fitted in a bulk nozzle 3; air beams 22 formed by flexible tubular members which radially extend from the connection annular body 21, are connected to the fixed frame 20, and may supply or discharge low pressure air to an interior part; and a tent film 23 stretched tightly between the air beams 22.SELECTED DRAWING: Figure 10

Description

  The present invention relates to a rainproof device for ship cargo handling.

  In general, a ship loader for loading roses into the ship's hold or a rose stored in the ship's hold is sucked up on the quay of a port where ships carrying grain items such as grains come and go. A cargo handling machine such as a pneumatic unloader for loading and unloading is deployed.

  And in the case of the grain etc. which the rose thing does not want to get wet in the rain, the situation where a cargo handling work must be stopped in rainy weather arises.

  In particular, in a port built in an area with a rainy season, when it is rainy and the cargo handling work of loose objects cannot be performed, the berthing fee at the port of the ship increases, and the delivery date tends to be uncertain.

  For this reason, conventionally, a tent-shaped rainproof device for covering the hatch of the ship has been proposed.

  In addition, there exists patent document 1 as what shows the general technical level relevant to the said rainproof apparatus, for example.

U.S. Pat. No. 8,818,586

  However, in the rainproof device disclosed in Patent Document 1, it is necessary to individually fix a plurality of (18) tension wires for holding the tent shape to the hatch of the ship, and installation work of the rainproof device And the removal work takes time.

  Also, with the loose nozzle extending downward from the boom tip of the cargo handling machine inserted into the hold from the hatch, the amount of movement of the tension wire is fed back each time the working position of the loose nozzle is moved. A control device that adjusts the winding amount and the feeding amount is required. Incidentally, in the said control apparatus, the winding amount and feeding amount of a tension wire are also adjusted according to the change of ship waterline position and the amount of vertical / horizontal rocking | fluctuation by wind.

  Furthermore, since a plurality of winches (18) for driving the tension wires are required, not only is the weight heavy and the operability is poor, but the entire apparatus is expensive and not practically used. It was the current situation.

  The present invention has been made in view of the above-described conventional problems, and can reduce the installation and removal work time, can eliminate the need for special control, and can further reduce the weight and improve the operability. It is intended to provide a rainproof device.

The present invention relates to a ship cargo handling rainproof used in rainy weather for a ship in which bulk goods are loaded and unloaded by the bulk goods nozzle in a state where the bulk goods nozzle of the cargo handling machine is inserted into the hold from the hatch. A device,
A fixed frame set to cover the outer peripheral edge of the hatch;
A connecting annular body detachably fitted to the rose nozzle;
A plurality of air beams, which are flexible tubular members extending radially from the connecting annular body and connected to the fixed frame and capable of supplying and discharging low-pressure air therein;
The present invention relates to a ship cargo handling rainproof device comprising a tent film stretched between the air beams.

  In the ship cargo handling rainproof device, it is preferable that an attachment / detachment magnet that can be attracted and desorbed to the outer peripheral edge of the hatch is attached to the fixed frame.

  In the ship cargo handling rainproof device, it is preferable that the tent film is a resin sheet that allows an operator to visually check the tip of a rose nozzle inside the hold.

  In the ship cargo handling rainproof device, it is preferable that the connecting annular body also serves as a low-pressure air supply / discharge header for the air beam.

  In the ship cargo handling rainproof device, it is preferable that the air beam is curved toward the outer periphery when low-pressure air is supplied.

  According to the rainproof device for cargo handling of the present invention, the installation and removal work time can be shortened, no special control can be required, and further, the weight can be reduced and the operability can be improved. obtain.

It is a perspective view which shows the Example of the rainproof apparatus for ship cargo handling of this invention. It is a sectional side view which shows the lock mechanism for mounting | wearing with the connection annular body in the Example of the rainproof device for ship cargo handling of this invention with respect to the rose object nozzle. It is a top view which shows the 1st step (state currently stored in the quay) of the installation procedure in the Example of the rainproof apparatus for ship cargo handling of this invention. It is a perspective view which shows the 2nd stage (state which inserted the front-end | tip part of the rose nozzle of a ship loader in the connection annular body) in the installation procedure in the Example of the rainproof apparatus for ship cargo handling of this invention. It is a perspective view which shows the 3rd step (The state where the fixed frame was suspended via the tent film | membrane and an air beam) in the installation procedure in the Example of the rainproof apparatus for ship cargo handling of this invention. It is a sectional side view which shows the 4th step (state which fixed frame was set so that the outer peripheral part of a hatch might be covered) in the installation procedure in the Example of the rainproof apparatus for ship cargo handling of this invention. It is a sectional side view which shows the 5th step (The state by which the air beam swelled and was curvedly formed by the outer peripheral side) in the installation procedure in the Example of the rainproof apparatus for ship cargo handling of this invention. It is a side view which shows the state which mounted | wore and lifted the rainproof device for ship cargo handling of this invention with the loose article nozzle of the ship loader. It is a side view which shows the state which has the ship which set the rainproof device for ship cargo handling of this invention in the highest position. It is a side view which shows the state which has the ship which set the rainproof device for ship cargo handling of this invention in the lowest position.

  Embodiments of the present invention will be described below with reference to the accompanying drawings.

  1-10 is the Example of the rainproof apparatus for ship cargo handling of this invention.

  The rainproof device 1 for ship cargo handling according to the present invention includes a loose article nozzle 3 of a ship loader 2 (see FIGS. 8 to 10) as a cargo handling machine in a state where the loose article nozzle 3 is inserted from the hatch 4 into the hold 5. Is used in rainy weather for the ship 6 on which bulk goods are loaded.

  Incidentally, as shown in FIGS. 8 to 10, the ship loader 2 is provided with a revolving frame 11 provided with a tiltable boom 10 on a traveling frame 9 that can travel on a rail 8 laid on the quay 7. The boom 10 has a configuration in which a rose nozzle 3 for supplying roses such as grains to the inside of the hold 5 is suspended from the tip of the boom 10. Inside the boom 10, a boom conveyor 10 a that conveys the loose article from the base end side of the boom 10 to the distal end side and drops it on the upper end of the loose article nozzle 3 is disposed. On the traveling frame 9, a supply conveyor 13 for supplying loose articles to the boom conveyor 10a via a chute 12 is disposed. 8 to 10, reference numeral 14 denotes a cab, in which the operator operates the ship loader 2. 8 to 10, reference numeral 15 denotes a hatch cover of a type that opens upward in a folding door manner.

  However, the rainproof device 1 for cargo handling of a ship according to the present invention is such that the loose nozzle 3 of a pneumatic unloader (not shown) as a cargo handling machine is inserted into the hold 5 from the hatch 4 by the loose nozzle 3. It is also possible to use the ship 6 where the bulk material is loaded and unloaded in rainy weather.

  The ship cargo handling rainproof device 1 includes a fixed frame 20, a connecting annular body 21, an air beam 22, and a tent film 23, as shown in FIG. 1.

  The fixed frame 20 is a rectangular frame member that is set so as to cover the outer peripheral edge of the hatch 4. At the four corners of the fixed frame 20, attachment / detachment magnets 24 that can be attracted and desorbed to the outer peripheral edge of the hatch 4 by lever operation (not shown) are attached.

  The connecting annular body 21 is detachably fitted to the loose article nozzle 3. As shown in FIG. 2, the lock mechanism 25 for mounting the connecting annular body 21 to the loose article nozzle 3 is provided with a bracket 27 having an L-shaped cross section on a base plate 26 provided on the top of the loose article nozzle 3. The bracket 27 is configured to be pivotable so that the bracket 27 can be opened and closed between a lock position (see solid line) and an open position (see virtual line) by the expansion and contraction of the fluid pressure cylinder 28. Further, as shown by a solid line in FIG. 2, the loose article nozzle 3 is formed to be tiltable from a suspended state with a hinge 29 as a fulcrum as shown by a virtual line in FIG. A turning device 30 provided above the portion 29 can turn the tip side from the turning device 30. As a result, loose articles can be supplied to the inside of the hold 5 (see FIGS. 8 to 10) without any problem.

The air beam 22 extends radially from the connecting annular body 21 and is connected to the fixed frame 20 and is flexible enough to supply and discharge low-pressure air (pressure is about 0.2 kgf / cm ² ≈0.0196 MPa) inside. A plurality of tubular members, such as umbrella bones. The air beam 22 is curved toward the outer periphery when low-pressure air is supplied.

  The tent film 23 is stretched between the air beams 22 and is formed of a resin sheet that allows the operator to see the tip of the loose nozzle 3 inside the hold 5.

  The connecting annular body 21 also serves as a low-pressure air supply / discharge header 21A for the air beam 22 and supplies low-pressure air from the low-pressure compressor 31 to the supply / discharge nozzle 32 to be branched into the air beam 22. After use, the air inside the air beam 22 is released by opening the exhaust valve 33.

  Next, the operation of the above embodiment will be described.

  As shown in FIG. 3, the ship cargo handling rainproof device 1 is stored in advance on the quay 7 where the ship 6 is anchored so as to be adjacent to the rail 8 on which the ship loader 2 travels.

  If it is raining when loading loose items such as grain into the vessel 6, first, as shown in FIG. 4, the tip of the rose nozzle 3 of the ship loader 2 is inserted into the connecting annular body 21, The connecting annular body 21 is pulled up by a wire rope (not shown). As shown in FIG. 2, the connecting annular body 21 pulled up by the wire rope is fixed to a base plate 26 provided on the top of the loose nozzle 3 by a lock mechanism 25. The connecting annular body 21 is fixed to the base plate 26 by moving the bracket 27 of the lock mechanism 25 from the open position (see the phantom line) to the lock position (see the solid line) by the expansion and contraction operation of the fluid pressure cylinder 28. Is called.

  After fixing the connecting annular body 21 to the base plate 26, when the loose nozzle 3 is pulled up, the fixed frame 20 is suspended via the tent film 23 and the air beam 22 as shown in FIGS. It becomes a state.

  In this state, as shown in FIG. 6, the fixed frame 20 is set so as to cover the outer peripheral edge of the hatch 4, and the detachable magnet 24 is attracted to the outer peripheral edge of the hatch 4 by operating a lever (not shown). The fixed frame 20 is fixed.

  Subsequently, when the low-pressure air is supplied from the low-pressure compressor 31 shown in FIG. 1 to the supply / discharge nozzle 32, and the low-pressure air is introduced into the air beam 22 from the connecting annular body 21 that also serves as the low-pressure air supply / discharge header 21A, As shown in FIG. 7, the air beam 22 swells and is curved toward the outer peripheral side.

  FIG. 9 shows a state in which the ship 6 on which the ship cargo handling rainproof device 1 is set is at a high tide, has almost no cargo, and is at the highest position. Further, FIG. 10 shows a state in which the ship 6 on which the ship cargo handling rainproof device 1 is set is at a low tide and full of loads and is in the lowest position. Regardless of whether the height position of the ship 6 changes to the state shown in FIG. 9 or FIG. 10, the ship cargo handling rainproof device 1 including the air beam 22 and the tent film 23 does not perform any special control. It becomes possible to follow the change in the height position of the ship 6 and prevent the roses from getting wet in the rain. Moreover, the loose nozzle 3 tilts from the state indicated by the solid line in FIG. 9 or 10 with the hinge portion 29 as a fulcrum as indicated by the phantom line in FIG. 9 or FIG. Even if the tip side turns from the turning device 30 by the turning device 30 provided at the upper part, these movements are not hindered by the air beam 22 or the tent film 23 of the rainproof device 1 for ship cargo handling. Roses can be supplied to the inside of the hold 5 without any problems.

  Even if the roses are grains that are not suitable for getting wet in the rain, it is not necessary to stop the cargo handling operation when it rains. Thereby, especially in a port constructed in an area with a rainy season, it is possible to avoid an increase in the berthing fee at the port of the ship 6 even if it rains continuously, while the delivery date is not affected by the weather.

  After the use of the ship cargo handling rainproof device 1, the adsorption of the attaching / detaching magnet 24 is released by operating a lever (not shown), and the fixed frame 20 is removed from the outer peripheral edge of the hatch 4. As shown in FIG. 2, the ship cargo handling rainproof device 1 is lifted by the ship loader 2 and placed at a predetermined position on the quay (see FIG. 3). Thereafter, the bracket 27 of the lock mechanism 25 shown in FIG. 2 is moved from the lock position to the open position by the expansion and contraction operation of the fluid pressure cylinder 28 to release the fixing of the connecting annular body 21 to the base plate 26, as shown in FIG. By opening the exhaust valve 33, the air inside the air beam 22 is released. When the air inside the air beam 22 is released, the air beam 22 contracts from the expanded state, and if the connecting annular body 21 is removed from the loose nozzle 3, the rainproof device 1 for ship cargo handling is crushed substantially flat. It can be stored in a predetermined position on the quay.

  As a result, in this embodiment, unlike the rainproof device disclosed in Patent Document 1, a plurality of (18) tension wires for holding the tent shape are individually fixed to the hatch 4 of the ship 6. There is no need, and the installation work and removal work of the rainproof device can be performed in a short time.

  In addition, the amount of movement is fed back each time the work position of the loose article nozzle 3 is moved in a state where the loose article nozzle 3 extending downward from the tip of the boom 10 of the cargo handling machine is inserted into the hold 5 from the hatch 4. Thus, there is no need to provide a control device or the like for adjusting the winding amount or feeding amount of the tension wire. Incidentally, there is no need to adjust the winding amount and the feeding amount of the tension wire in accordance with the change of the draft line position of the ship 6 and the vertical / horizontal swing amount by the wind.

  Furthermore, since a winch for driving the tension wire is not required, the weight does not increase, the operability is good, the entire apparatus is inexpensive, and the practical use is sufficiently possible.

  Thus, the installation and removal work time can be shortened, no special control can be required, and the weight can be reduced and the operability can be improved.

  Further, by attaching the detachable magnet 24 that can be attracted and released to the outer peripheral edge of the hatch 4 to the fixed frame 20, the fixed frame 20 can be efficiently installed on the outer peripheral edge of the hatch 4.

  The tent film 23 is a resin sheet that allows the operator to see the tip of the loose nozzle 3 inside the hold 5 so that the operator can check the position of the loose nozzle 3 from the cab 14 into the hold 5. Loading of loose objects can be performed.

  Since the connecting annular body 21 also serves as a low-pressure air supply / discharge header 21A for the air beam 22, low-pressure air is branched into all the air beams 22 from the connecting annular body 21 also serving as the low-pressure air supply / discharge header 21A. Can be introduced well. On the contrary, the internal air can be efficiently discharged from all the air beams 22 to the outside through the connecting annular body 21 that also serves as the low-pressure air supply / discharge header 21A.

  Since the air beam 22 is curved toward the outer periphery when low-pressure air is supplied, even if the hatch cover 15 is a type of ship 6 in which the hatch cover 15 is opened upward in a folding door manner, the hatch cover 15 The rainproof device 1 for ship cargo handling can be installed without interfering with the tent film 23.

  In addition, the rainproof device for ship cargo handling of this invention is not limited only to the above-mentioned Example, Of course, various changes can be added within the range which does not deviate from the summary of this invention.

1 Rainproof device for ship cargo handling 2 Ship loader (load handling machine)
DESCRIPTION OF SYMBOLS 3 Discrete nozzle 4 Hatch 5 Ship hold 6 Ship 20 Fixed frame 21 Connecting annular body 21A Low pressure air supply / discharge header 22 Air beam 23 Tent film 24 Detachable magnet

Claims (5)

It is a rainproof device for ship cargo handling that is used in rainy weather for ships that load and unload bulk goods with the bulk goods nozzle with the bulk goods nozzle of the cargo handling machine inserted from the hatch into the hold. ,
A fixed frame set to cover the outer peripheral edge of the hatch;
A connecting annular body detachably fitted to the rose nozzle;
A plurality of air beams, which are flexible tubular members extending radially from the connecting annular body and connected to the fixed frame and capable of supplying and discharging low-pressure air therein;
A marine cargo handling rainproof device comprising a tent film stretched between the air beams.   The marine cargo handling rainproof device according to claim 1, wherein a detachable magnet that can be attracted and desorbed to the outer peripheral edge of the hatch is attached to the fixed frame.   3. The rainproof device for ship cargo handling according to claim 1 or 2, wherein the tent film is a resin sheet that allows an operator to visually check the tip of a rose nozzle inside the hold.   The marine cargo handling rainproof device according to any one of claims 1 to 3, wherein the connecting annular body also serves as a low-pressure air supply / discharge header for the air beam.   The ship cargo handling rainproof device according to any one of claims 1 to 4, wherein the air beam is curved toward an outer peripheral side when low-pressure air is supplied.

Images