JP2013144529A - Ship - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a ship that can prevent damage of cargo caused by rainwater entering into a cargo hold or rainwater getting on the cargo during cargo handling even in the cargo handling when it rains, and degradation in transport efficiency of the ship caused by the rainwater entering into the cargo hold and interruption of cargo handling due to bad weather.SOLUTION: A hatch cover 14 is constituted of an end folding type hatch cover which is moved on both sides or one side of a hatch 13 and is folded in a shape of inverted V. A cover 20 for rainwater countermeasure is provided to be deployed to cover the hatch 13 along with opening movement of the hatch cover 14, in a full automatic manner or a semi-automatic manner, or by manual. The cover 20 for rainwater countermeasure is constituted to be able to form a side opening part 26 which can be opened/closed, communicates to the inside of the cargo hold 11 and is provided on at least one gunwale side of the ship 1, or forming the side opening part 26 communicating to the inside of the cargo hold 11 on at least one gunwale side of the ship 1.

Description

  The present invention relates to a ship that can efficiently carry a cargo while preventing rainwater from entering a cargo hold during cargo handling in rainy weather.

  In ordinary bulk carriers, etc., a cargo handling hatch is provided at the top of the cargo hold. During navigation, this hatch is covered with a hatch cover and shut off from the outside, and rainwater and seawater launched on the deck are placed inside the cargo hold. To prevent intrusion.

  However, during cargo handling, the hatch cover is opened and cargo handling is performed, so if a large hatch is provided like a bulk cargo ship, rainwater will enter the cargo hold as it is in rainy weather. Become. For this reason, cargoes that are damaged by rainwater, such as food cargo that rots or becomes moldy when wet, or chemical substances that react with water and change their properties, etc. In the case of cargo, it is an important issue to avoid the intrusion of rainwater.

  In addition, in the case of cargo whose fluidity changes due to moisture absorption, for example, nickel ore cargo, if the cargo water content exceeds the specified value, the cargo will be Since it is slurried and has fluidity, the restoration performance is significantly deteriorated with respect to the lateral stability of the hull due to the influence of free surface. Therefore, it is an important issue to manage the moisture content of the cargo below the specified value from the safety aspect during ship operation.

  Furthermore, even if the cargo is safe even if it gets wet, such as coal, iron ore, etc., if rainwater enters the cargo hold during cargo handling, there is a problem that the cargo cannot be loaded by the weight of the rain moisture. In other words, the amount of ship that can be mounted is determined by the ship's cargo weight (DW), and the rainwater that has entered the cargo hold is also included in this cargo weight. The weight of the load decreases. For this reason, when rainwater enters the cargo hold and cannot be separated from the cargo, the infiltrated rainwater is also transported along with the cargo, and transport efficiency deteriorates.

  As countermeasures against these, it may be possible to avoid the intrusion of rainwater into the cargo hold by interrupting the cargo handling due to the weather, but since the cargo must be stopped in the port during the cargo handling interruption, There is a problem that the annual transportation amount decreases and the transportation efficiency of the ship deteriorates as a whole.

  In this regard, the hatch includes a hatch cover that can be opened and closed to cover the hatch on the deck of the ship, and a hanging load cover that is detachably provided on a hook portion for suspending the cargo (loading) of the crane. A cover holder is provided on the cover to place the suspended load cover. While the cargo is suspended and moved by the crane, the hatch cover is closed to prevent rainwater from entering, and the hatch is moved when the crane moves on the hatch. By opening the cover by the suspended load cover and covering this open opening with the suspended load cover to prevent rainwater from entering, the cargo is handled by the hook part under the suspended load cover. An all-weather cargo handling quay facility with a crane for loading and unloading cargo between a quay and a ship berthed on the quay has been proposed that reliably protects the ship's hold from rain. For example, see Patent Document 1).

  However, a hatch cover size that is about 20m long x about 19m wide, such as a bulk cargo ship that handles grain, etc., is not a small ship that handles general cargo. There is a problem that it is difficult to install. Furthermore, since it is necessary to open and close the hatch cover as the suspended load cover moves, there is a problem that the cargo handling operation becomes complicated.

JP-A-11-29091

  The present invention has been made in view of the above-described situation. The purpose of the present invention is to carry out cargo handling when raining in the rain, when rainwater enters the cargo hold or when rainwater falls on the cargo being handled. An object of the present invention is to provide a ship that can prevent damage, decrease in transport efficiency due to rainwater entering the cargo hold, and decrease in ship transport efficiency due to suspension of cargo handling due to weather.

  In order to achieve the above object, a ship of the present invention includes a hatch for handling cargo and a hatch cover that covers the hatch, and the hatch cover is moved to both sides or one side of the hatch. It is composed of an end-folding type hatch cover that is folded into an inverted V-shape, and has a rainwater countermeasure cover that is fully or semi-automatically or manually deployed so as to cover the hatch as the hatch cover opens. The rainwater countermeasure cover is formed with a side opening that can be opened and closed and communicated with the cargo hold on at least one side of the ship, or a side opening that communicates with the cargo hold. Can be formed on at least one side of the ship.

  According to this configuration, when lifting and unloading, when the hatch cover is opened and folded in the front-rear direction of the hatch, the cover for rainy weather can be deployed, so that it is possible to quickly deploy without having to deploy this rainy weather countermeasure cover. It is possible to start the cargo handling work. Moreover, since the side opening is on the heel side, cargo can be handled while preventing rainwater from entering the cargo hold. In addition, since the structure is covered with a rainwater countermeasure cover separately from the hatch cover, it is not necessary to modify the existing hatch cover, and can be easily applied to existing ships. The rain-prevention cover can be made of, for example, a woven cloth coated with a synthetic resin, a material that does not allow water to pass through, such as rubber or a synthetic resin.

  In the above-described ship, the front and rear ends of the rainwater countermeasure cover and the hatch cover are arranged so that the rainwater countermeasure cover covers the hatch in a fully automatic, semi-automatic or manual manner as the hatch cover moves when the hatch cover is opened. The rainwater countermeasure cover is configured to be connected directly or indirectly and to maintain the shape of the rainwater countermeasure cover when the rainwater countermeasure cover is deployed by injecting compressed air into a member constituting the rainwater countermeasure cover.

  According to this structure, the front and rear ends of the rainwater protection cover and the hatch cover are connected directly or indirectly, so that the rainwater protection cover can be quickly deployed with a simple configuration along with the deployment of the hatch cover. The rainwater protection cover can be formed with a lightweight structure. Furthermore, by removing the compressed air, the rainwater countermeasure cover can be formed into a sheet shape, and can be easily stored and moved.

  In the above-mentioned ship, it is provided with an air column that expands and contracts by compressed air, an air beam that expands and contracts by compressed air, and a seat between the air beams, or is formed by an air column that expands and contracts by compressed air and a flat airtight bag. An air bag inflated by the compressed air, and forming the rainwater countermeasure cover.

  According to this configuration, it is possible to configure columns (posts) and beams (beams) that are strong enough to avoid rainwater simply by enclosing compressed air in an airtight cylindrical body, so that the overall structure is simple and lightweight. can do. Further, the compressed air can be easily and quickly deployed without human intervention, and by removing the compressed air, the rainwater countermeasure cover can be reduced and stored easily. That is, the rainwater countermeasure cover need not be a fixed structure. Further, when the airbag is used, the number of members is reduced, the structure becomes simpler, and the handling becomes easy.

  In the above-mentioned ship, a plurality of air beams are arranged in the front-rear direction of the ship with the direction in which the air beam extends extending from the left and right sides of the ship, and the air beam is connected to an air support extending in the front-rear direction of the ship. Is supported by the air column, and the air support is moved up and down by the expansion and contraction of the air column so that the side opening is opened and closed.

  According to this configuration, by raising the air support, it is possible to easily form a side opening that communicates with the cargo hold on the heel side, that is, a cargo handling space, and keep the air support lowered. It is easy to keep the heel side closed.

  In addition, by making the air column multi-stage, etc., the height of the side can be changed easily by changing the height of the side of the heel side, so that it corresponds to the situation when handling and berthing, It is possible to easily provide the side opening having the optimum size.

  In the above-mentioned ship, if rainwater is collected at the end of the rainwater countermeasure cover along the air support, rainwater that has fallen on the rainwater countermeasure cover can be collected at the end of the rainwater countermeasure cover. In addition, it is possible to prevent rainwater falling on the rainwater countermeasure cover from falling on the flow line of the cargo handling device and to prevent this rainwater from entering the cargo hold through the side opening.

  In the above-mentioned ship, the rainwater countermeasure cover is formed of a sheet that is partially or wholly lifted on a suspension line supported by a support column that stands up with the opening of the hatch cover, and a part of the suspension line The side opening is opened and closed by expanding and contracting the suspension cable.

  According to this configuration, when the hatch cover is opened and moved and folded into an inverted V-shape, the support is raised along with the raising operation of the hatch cover, the sheet is expanded in a tent shape to cover the hatch, and the heel side of the sheet By lifting a part or all of the side, a side opening communicating with the cargo hold can be formed, so that the rainwater countermeasure cover can be configured with a very simple configuration.

  In the above-mentioned ship, if a curtain member that prevents a part of the cargo handling device from passing through the side opening and prevents rainwater from entering the cargo hold is provided, it is more effective for rainwater to enter the cargo hold. Can be prevented. The curtain member can be made of, for example, a material in which a woven fabric is coated with a synthetic resin, a material that does not allow water to pass through, such as rubber or a synthetic resin.

  In the above-mentioned ship, a part of the rainwater countermeasure cover is directly or indirectly connected to the hatch cover or a crane post on the deck of the ship, and the rainwater cover is fixed so as to cover the hatch. .

  According to this configuration, the shape of the rainwater protection cover is maintained and fixed, or the shape of the rainwater protection cover is maintained and fixed by a hatching rope or a suspension rope from a crane post. Can be. Therefore, the rainwater countermeasure cover can be installed without providing a new structure for maintaining and fixing the shape of the rainwater countermeasure cover. In addition, when the air beam arch top (top) that extends in the horizontal direction is lifted using a suspension rope, the shape of the rainwater protection cover can be easily maintained, and rainwater can be prevented from collecting on the rainwater protection cover. .

  In the above-described ship, the rainwater countermeasure cover is stored in a storage chamber formed on the hatch cover or a storage chamber disposed on the hatch cover in a state where the hatch cover covers the hatch.

  According to this configuration, it is not necessary to connect or remove the rain cover against the hatch cover as compared with the case where the cover is detached and stored away from the hatch cover. The labor required for storage can be significantly reduced. Furthermore, when the cargo is stored in the storage chamber formed in the hatch cover, it is not necessary to reduce the amount of cargo loaded even when cargo such as wood and containers is mounted on the deck and the hatch cover. In addition, when it is stored in the storage room formed in the hatch cover, it is possible to avoid damage to the rain-prevention cover due to waves during the voyage, thereby simplifying the structure of the rain-prevention cover and reducing the weight. And durability can be improved.

  In the above-mentioned ship, an upper opening provided with a flexible lid member that can enter and exit the grab during cargo handling by the grab and can suppress the passage of rain water when closed in the upper part of the rainwater countermeasure cover. Provide.

  According to this configuration, it is possible to handle not only cargo handling from the heel side but also cargo handling such as moving a grab in the vertical direction. In this case, when cargo handling from the heel side is unnecessary, it is preferable to close the side opening on the heel side in order to prevent rainwater as well as pests and dust from entering the cargo hold. As this configuration, for example, there is a configuration in which a shielding structure in which a grab can enter and exit is provided at the top of a rain countermeasure cover formed of an air beam and a sheet.

  According to the ship of the present invention, even when handling cargo in rainy weather, rainwater enters the cargo hold, or rainwater falls on the cargo being handled and the cargo is damaged, and rainwater entered the cargo hold. It is possible to prevent a drop in transport efficiency due to weather and a drop in ship transport efficiency due to cargo suspension due to weather.

It is a perspective view which shows the structure of the ship of embodiment which concerns on this invention. It is a perspective view which shows typically the mode of opening of the opening of a hatch of a vessel of an embodiment concerning the present invention, and an air type rainwater prevention cover. It is a perspective view which shows typically the mode of closure of the ship hatch of embodiment which concerns on this invention, and the storing of the air-type rainwater prevention cover. It is a perspective view which shows typically the mode of expansion | deployment of the air-type rainwater prevention cover of a structure different from FIG. FIG. 3 is a cross-sectional view schematically showing a state in which a side opening of the air type rainwater prevention cover of FIG. 2 is opened on the starboard side. FIG. 3 is a cross-sectional view schematically showing a state in which a side opening of the air-type rainwater prevention cover of FIG. 2 is opened on the port side. FIG. 3 is a cross-sectional view schematically showing a state in which a side opening of the air-type rainwater prevention cover of FIG. 2 is closed. FIG. 3 is a cross-sectional view schematically showing how the height of the side opening of the air-type rainwater prevention cover of FIG. 2 is changed. It is a perspective view which shows typically the mode of deployment of the tent type rainwater prevention cover of the both-sides opening developed by opening the hatch of the ship of the embodiment concerning the present invention, and the moving hatch cover. FIG. 10 is a perspective view schematically showing a state of closing the hatch of the ship and storing the tent-type rainwater prevention cover of the embodiment according to the present invention in FIG. 9. It is a perspective view which shows typically the mode of deployment of the tent type rainwater prevention cover of one side opening which is developed by opening the hatch of the ship of the embodiment concerning the present invention, and moving hatch covers. It is a perspective view which shows typically the mode of deployment of the rainwater prevention cover of the tent type both sides opening which raises a support | pillar with opening | releasing of the hatch of the ship of embodiment which concerns on this invention, and standing up of a hatch cover, and developing. . It is a perspective view which shows typically the mode of closure of the hatch of the ship of embodiment which concerns on this invention of FIG. 12, and accommodation of the tent type rainwater prevention cover. It is a perspective view which shows typically the mode of deployment of the rain water prevention cover of the tent type one side opening which stands up and develops with the opening of the hatch of the ship of the embodiment concerning the present invention, and the raising of the hatch cover. . It is a perspective view which shows typically a mode that the curtain member was provided in the side opening part of the rainwater prevention cover. It is a fragmentary figure which shows typically the mode of the upper opening part provided above the rainwater prevention cover.

  Hereinafter, a ship according to an embodiment of the present invention will be described with reference to the drawings. The ship to which the present invention is applied is a ship that has a large hatch and wants to avoid intrusion of rainwater into the cargo hold. Such ship types include bulk carriers and ore carriers. Note that the drawings schematically show the configuration of the ship according to the embodiment of the present invention, and are not written in actual dimensional ratios, and the dimensional ratios between the drawings are not necessarily the same. Not necessarily.

  As shown in FIG. 1, a ship 1 according to an embodiment of the present invention is provided with a hatch 13 for loading cargo on an upper deck 12 that forms an upper part of a cargo hold 11, and a hatch cover 14 is provided on the hatch 13. During the voyage, the ship 1 is mounted, and the hatch 13 is covered with a hatch cover 14 to seal the cargo hold 11 to prevent rainwater and waves from entering the cargo hold 11.

  In addition, as shown in FIG. 1, a bulk carrier often has a crane post 15 having a crane 15a for cargo handling so that cargo handling can be carried out even in a port without cargo handling equipment. In addition, the size of the hatch 13 may be about 20 m long × about 19 m wide in a bulk cargo ship, an ore carrier ship, etc. for carrying grains and the like.

  As shown in FIGS. 2 and 3, the hatch cover 14 of the ship 1 is constituted by an end folding type (End Folding Type) hatch cover 14. As shown in FIG. 2, the end-folding hatch cover 14 is generally composed of four hatch cover members 14 a, and a set of two hatch cover members 14 a that are connected to each other by hinges are arranged around the hatch 13. It moves on the rail 13b provided on the hatching combing 13a that constitutes, and is folded while moving to one side (one side of the ship 1 in the front-rear direction (X direction), for example, forward), and is inverted V-shaped. In addition to the shape, the other two sets of hatch covers 14a are also folded while moving to the other side of the hatch 13 (the other side in the front-rear direction of the ship 1, for example, rearward) to form an inverted V shape. Thereby, the hatch 13 becomes an open state.

  That is, the hatch cover 14 is moved in the front-rear direction while being folded in an inverted V shape on both sides of the hatch 13 so that the hatch 13 can be opened and the cargo hold 11 can be loaded as shown in FIG. To do. Conversely, the hatch covers 14 on both sides move from the folded state so as to extend toward the center of the hatch 13, thereby covering the hatch 13 with the hatch cover 14 and closing the cargo hold 11 as shown in FIG. 3. .

  And in this invention, as shown in FIGS. 2-15, in addition to the hatch cover 14, in addition to the hatch cover 14, for the rain water countermeasure which expands automatically, semi-automatically or manually so that the hatch 13 may be covered with opening operation | movement of the hatch cover 14 Covers (cross hatched portions) 20 and 30 are provided. The rainwater countermeasure covers 20 and 30 can be made of, for example, a woven cloth coated with a synthetic resin or a material that does not allow water to pass through such as rubber or synthetic resin.

  As the rainwater countermeasure covers 20 and 30, as shown in FIGS. 2 to 8 and 15, the shape of the rainwater countermeasure cover 20 when it is deployed by injecting compressed air into the members constituting the rainwater countermeasure cover 20. The air-type rainwater countermeasure cover 20 configured to maintain the suspension, and the suspension supported by the support 33 that stands up with the opening movement of the hatch cover 14 and the hatch cover 14 as shown in FIGS. The cable 32 has a tent type rainwater countermeasure cover 30 formed of a sheet 31 from which part or all of the cable 32 is lifted.

  As shown in FIG. 2, the air-type rainwater countermeasure cover 20 includes an air column 21 that expands and contracts by compressed air, an air beam 22 that expands and contracts by compressed air, and a seat 23 between the air beams 22. Or as shown in FIG. 4, it comprises the air column 21 which expands-contracts with compressed air, and the airbag 25 which is formed with a planar airtight bag and expand | swells with compressed air. By adopting this air type structure, the rainwater countermeasure cover 20 can be formed in a light weight, and the compressed air can be removed to facilitate storage and relocation. That is, the rainwater countermeasure cover 20 need not be a fixed structure. In addition, if it is set as the structure using the airbag 25, it will become a simple structure and will be easy to handle.

  In the configuration shown in FIG. 2, the direction in which the air beam 22 extends is the left-right anchoring direction (Y direction) of the ship 10, and a plurality (five in FIG. 2) are arranged in the front-rear direction (X direction) of the ship 10. Both ends of 22 or, if necessary, an intermediate portion are connected to an air support 24 extending in the front-rear direction of the ship 10, and the air support 24 is supported by the air column 21.

  As a result, the compressed air is injected into the air column 21 and expanded to raise the air support 24, thereby easily communicating with the cargo hold 11 on the heel side and the side opening 26 serving as a cargo handling passageway. Can be formed. Further, the compressed air is not injected into the air column 21 and the air support 24 is kept lowered while being reduced, so that the heel side can be kept closed. In this way, by selecting the air column 21 into which the compressed air is injected, it is possible to select the heel side (starboard or portboard: starboard in FIG. 4) forming the side opening 26.

  For example, in FIG. 5, the side opening 26 is formed on the starboard side, in FIG. 6, the side opening 26 is formed on the port side, and in FIG. 7, the side opening 26 is not provided. For example, when the side opening 26 is closed on both sides of FIG. 7, there is a possibility that rainwater may infiltrate from the side opening 26 due to strong wind or the like. In some cases, when the cargo handling is interrupted after exceeding the operational limit wind speed, the rainwater protection cover 20 is prevented from being damaged by being blown by the wind. The number of air columns 21 necessary to hold the shape of the air support 24 is provided. However, the number of the air columns 21 may be reduced as much as possible to enlarge the side opening 26 so that cargo can be efficiently handled. preferable. In addition, you may add the structure which suspends the air support 24 with the suspension rope (not shown) stretched | tensioned between the hatch covers 14a which face each other on both sides of the hatch 13 as needed.

  Further, by making the air column 21 multistage, etc., as shown in FIG. 8, the height Ha of the air support 24, that is, the height Ha of the side opening 26 can be easily changed. As a result, the side opening 26 having an appropriate size can be provided in accordance with the situation at the time of cargo handling, the land-side cargo handling device or the like that has docked.

  In this air type rainwater countermeasure cover 20, an air column (support) 21 and an air beam (beam) 22 having a strength sufficient to avoid rainwater simply by enclosing compressed air in an airtight cylindrical body can be configured. The structure can be made simple and lightweight. Moreover, as shown in FIG. 2 and FIGS. 4 to 8, it can be deployed easily and in a short time by injecting compressed air, as shown in FIGS. 2 and 4 to 8. It can be easily stored in the storage chamber 14b as shown in FIG. In the configuration of FIG. 3, the storage chamber 14b is configured such that a recess is provided in the hatch cover member 14a and a rainwater countermeasure cover 20 is embedded in the recess. In addition, it is preferable to provide an air evacuation device such as a vacuum pump for quickly extracting compressed air.

  Further, instead of the air support 24 extending in the front-rear direction of the ship 1, the air-type rainwater countermeasure cover 20 may be supported on the hatch 13 by using a suspension rope (not shown). The suspension cable is provided with an eyebolt or the like on the hatch cover member 14a and connected thereto, whereby the suspension cable is automatically stretched by the movement of the hatch cover member 14a, and the air-type rainwater protection cover 20 is also automatically installed. The air rain cover 20 is constructed by pulling the suspension cable as the hatch cover member 14a moves by connecting the suspension cable to a part of the crane post 15 and pulling the suspension cable 14a. Or configure it to expand. In this case, the side opening 26 can be opened by increasing the height of the suspension line suspension position, and the side opening 26 can be closed by decreasing the height of the suspension line suspension position.

  Further, in order to prevent rainwater from collecting on the air type rainwater countermeasure cover 20, the air beam 22 extending in the left-right heel direction and the sheet 23 therebetween are inclined, or the air beam 22 is formed in an arch shape and the sheet 23 therebetween. Also keep the arch shape. In order to reinforce this arch shape, it is preferable to lift the arch top (top) using a suspension rope or the like. By these methods, it is possible to easily maintain the shape of the rainwater countermeasure cover 20, and it is possible to flow rainwater to the air support 24, and to prevent rainwater from collecting on the rainwater countermeasure cover 20.

  Further, if the rainwater is configured to be inclined along the air support 24 so that rainwater collects at the front and rear end portions of the rainwater countermeasure cover 20, the rainwater that has fallen on the rainwater countermeasure cover 20 is thereby configured. The rainwater that has fallen on the rainwater prevention cover 20 is prevented from falling on the flow line of the cargo handling device that handles the cargo via the side opening 26. it can. At the same time, it is possible to prevent rainwater falling on the rainwater countermeasure cover 20 from entering the cargo hold 11 through the side opening 26.

  Next, the tent type rainwater countermeasure cover 30 will be described. In the tent type rainwater countermeasure cover 30 as shown in FIGS. 9 to 11, the seat 31 is lifted by extending a part of the suspension line 32 of the suspension line 32 stretched between the hatch covers 14a. The side opening 36 is opened. In addition, it is preferable to avoid accumulation of rain water on the sheet 31 by using a suspension rope or the like at the center or the top of the sheet 31. The suspension cable 32 can easily maintain the shape of the rainwater countermeasure cover 30 and can prevent rainwater from collecting on the rainwater countermeasure cover 30. In the configuration of FIG. 9, the side openings 36 are open on both sides. In the case where the side opening 36 is opened only on one side, for example, a configuration as shown in FIG. 11 is used.

  Further, in the tent type rainwater countermeasure cover 30 as shown in FIGS. 12 to 14, the seat 31 is lifted by extending the suspension rope 32 stretched between the pillars 33 standing together with the hatch cover 14a. The side opening 36 is opened. In addition, it is preferable to lift up the center part, the top part, etc. of this sheet | seat 31 with the suspension rope 32 etc., and to collect rainwater on the sheet | seat 31. FIG. The suspension cable 32 can easily maintain the shape of the rainwater countermeasure cover 30 and can prevent rainwater from collecting on the rainwater countermeasure cover 30. In the configuration of FIG. 12, the side openings 36 are open on both sides. In the case where the side opening 36 is opened only on one side, for example, a configuration as shown in FIG.

  Further, in these tent-type rainwater countermeasure covers 30, the seat 31 is lifted by extending a part of the suspension rope 32 stretched between the hatch covers 14a, so that the side openings 36 are formed. Open. Furthermore, the height of the side opening 36 can be changed by adjusting the lifting amount. In addition, it is preferable to avoid accumulation of rain water on the sheet 31 by using a suspension rope or the like at the center or the top of the sheet 31. The suspension cable 32 can easily maintain the shape of the rainwater countermeasure cover 30 and can prevent rainwater from collecting on the rainwater countermeasure cover 30.

  Then, the front and rear ends of the air-type and tent-type rainwater protection covers 20 and 30 as shown in FIGS. 2 to 14 and the hatch cover 14 are connected directly or indirectly via a suspension cable 32 to form a hatch. As the cover 14 moves, the rainwater protection covers 20 and 30 are formed so as to cover the hatch 13 fully automatically, semi-automatically or manually. For example, by adopting a configuration in which the front and rear ends of the rainwater countermeasure covers 20 and 30 and the hatch cover are connected directly or indirectly, the rainwater countermeasure covers 20 and 30 can be quickly and easily deployed with the hatch cover 14 being deployed. Can be deployed. Accordingly, the side openings 26 and 36 communicating with the cargo hold 11 can be formed on at least one side of the ship 1.

  In the case of a tent-type rain cover 30 as shown in FIGS. When the hatch cover 14 is opened and moved to be folded into an inverted V shape, the support 33 is raised together with the hatch cover 14 and the seat 31 is fully or semi-automatically or manually expanded into a tent shape to open the hatch 13. Configure to cover. At the same time, the side opening 36 communicating with the cargo hold 11 is formed by lifting a part or the whole of the sheet 31 on the heel side.

  That is, when lifting and unloading, when the hatch cover 14 is opened in the folded state by moving the hatch cover 14 in the front-rear direction of the ship 1, the rain cover 20, 30 is preferably automatically, semi-automatically or manually. It can be deployed automatically, i.e. without human assistance.

  As a result, it is possible to quickly start the cargo handling operation by unfolding the rain countermeasure cover. Moreover, since the side openings 26 and 36 are on the heel side, cargo can be handled while preventing rainwater from entering the cargo hold 11.

  Even if it is not fully automatic, the suspension rope 32 is connected to the rainwater protection covers 20 and 30 and the hatch cover 14 and the height of the side openings 26 and 36 is adjusted manually. As a result, it takes some time and effort, but the overall configuration can be simplified.

  A part of the rainwater countermeasure covers 20 and 30 is connected directly or indirectly to the hatch cover 14 or the crane post 15 on the deck of the ship 1, and the lower part of the air column 21 and the side openings 26 and 36. The air support 24 and the suspension rope 32 on the side where the cover is not provided are fixed on the upper deck 12 or the hatch coaming 13a, and the rainwater countermeasure covers 20 and 30 are fixed so as to cover the hatch 13. Accordingly, the shape and shape of the rainwater countermeasure covers 20 and 30 are maintained and fixed, or supplemented or reinforced by the hatch cover 14 and the suspension rope 32 from the crane post 15. Therefore, the rainwater countermeasure covers 20, 30 can be installed without providing a new structure on the hull side for maintaining and fixing the shape of the rainwater countermeasure covers 20, 30.

  Further, the rainwater countermeasure covers 20 and 30 are stored in the storage chamber 14b formed in the hatch cover 14 as shown in FIG. 3 with the hatch cover 14 covering the hatch 13, or as shown in FIGS. It is preferable to store in a storage chamber 14 c placed on the hatch cover 14.

  With this configuration, it is not necessary to connect or remove the rain protection covers 20 and 30 to the hatch cover 14 as compared with the case where the cover is removed from the hatch cover 14 as a detachable type. It is possible to remarkably reduce the labor required to expand and store the countermeasure covers 20 and 30. Further, if the storage chamber 14 b is embedded in the recessed portion formed in the hatch cover 14, it is not necessary to reduce the amount of cargo loaded even when cargo such as wood and containers is mounted on the deck and the hatch cover 14. . Also, with this configuration, it becomes easy to automatically deploy the rainwater countermeasure covers 20 and 30 by the opening operation of the hatch cover 14.

  Furthermore, if the rain-prevention covers 20, 30 are stored in the embedded storage chamber 14b and covered, or if a container is mounted thereon, the rain-prevention covers 20, 30 will be damaged by waves during the voyage. The structure of the rainy weather countermeasure covers 20 and 30 can be simplified, the weight can be reduced, and the durability can be improved.

  In addition, since it is the structure covered with the rainwater countermeasure covers 20 and 30 separate from the hatch cover 14, if the rainwater countermeasure covers 20 and 30 are not stored in the hatch cover 14, it is necessary to modify the existing hatch cover 14. There is no.

  Furthermore, as shown in FIG. 15, a part of the cargo handling device can pass through the side opening 26 (36) of the rainy weather countermeasure cover 20 (30) and rainwater can enter the cargo hold 11. If the curtain member 40 to be suppressed is provided, according to this configuration, it becomes possible to more effectively prevent rainwater from entering the cargo hold. The curtain member 40 can be made of, for example, a material in which a woven fabric is coated with a synthetic resin or a water-impervious material such as rubber or a synthetic resin.

  In addition, as shown in FIG. 16, a flexible section 41a is provided on the upper part of the rainwater protection covers 20 and 30 so that a grab can be taken in and out during cargo handling, and the passage of rainwater can be suppressed when closed. When the upper opening 41 of the shielding structure that can be put in and out of the grab formed with a cover member made of an aggregate is provided, not only the cargo handling from the heel side but also the cargo handling that moves the grab in the vertical direction It becomes possible to respond.

  In this case, when the cargo handling from the shore side is unnecessary, it is preferable to close the side opening 26 on the shore side in order to prevent rainwater, pests, dust and the like from entering the cargo hold. . As this configuration, for example, an upper opening 41 is provided at the top of the rain countermeasure cover 20 formed by the air beam 22 and the seat 23 or at the top of the seat 31.

  Although not particularly shown, the present invention can also be applied to a one-sided storage type hatch cover that moves to one side and is folded into an inverted V shape to be in a stored state. In this case, one of the rainwater countermeasure covers is supported by a hatch cover, and the other is supported by a crane post or a crane.

  According to the ship 1 having the above-described configuration, the hatch cover 14 is configured as an end folding type hatch cover that moves to both sides of the hatch 13 and is folded into an inverted V shape, and the hatch cover 14 is opened. Along with this, the rainwater countermeasure covers 20, 30 that expand so as to cover the hatch 13 are provided, and the rainwater countermeasure covers 20, 30 can be opened and closed and the side openings 26, 36 that communicate with the cargo hold 11 are provided on the ship. Since the side opening portions 26 and 36 communicating with the cargo hold 11 can be formed on at least one side of the ship 1. Also, when handling cargo in rainy weather, rainwater enters the cargo hold 11 or rain water falls on the cargo being handled and the cargo is damaged. And decrease in transport efficiency due to rain water, a decrease in transport efficiency of the ship due to cargo handling interruptions due to weather can be prevented.

  According to the ship of the present invention, even when handling cargo in rainy weather, rainwater enters the cargo hold, or rainwater falls on the cargo being handled and the cargo is damaged, and rainwater entered the cargo hold. It is possible to prevent a decrease in transport efficiency due to weathering and a decrease in ship transport efficiency due to the suspension of cargo handling due to the weather.

DESCRIPTION OF SYMBOLS 1 Ship 11 Cargo hold 13 Hatch 14 Hatch cover 14a Hatch cover member 14b Storage room (buried type)
14c Storage room (mounting type)
15 Crane post 20 Air type rainwater protection cover 21 Air column 22 Air beam 23 Seat 24 Air support 25 Air bag 26 Side opening (air type)
30 Cover for tent type rainwater countermeasure 31 Sheet 32 Suspension rope 33 Post 36 Side opening (tent type)
40 Curtain member 41 Upper opening 41a Section

Claims (10)

In a ship equipped with a hatch for handling cargo and a hatch cover covering this hatch,
The hatch cover is configured with an end folding type hatch cover that moves to both sides or one side of the hatch and is folded into an inverted V shape,
A rainwater countermeasure cover that expands so as to cover the hatch fully or semi-automatically or manually in accordance with the opening operation of the hatch cover,
The rainwater countermeasure cover is formed with a side opening that can be opened and closed and communicated with the cargo hold on at least one side of the ship, or a side opening that communicates with the cargo hold. A ship configured to be formed on at least one side of the ship. The front and rear ends of the rainwater countermeasure cover and the hatch cover are connected directly or indirectly so that the rainwater countermeasure cover covers the hatch in a fully automatic, semi-automatic or manual manner when the hatch is opened. With
The ship according to claim 1, wherein the rainwater countermeasure cover is configured to maintain a shape of the rainwater countermeasure cover when the rainwater countermeasure cover is deployed by injecting compressed air into a member constituting the rainwater countermeasure cover. .   An air column that expands and contracts by compressed air, an air beam that expands and contracts by compressed air, and a sheet between the air beams, or is formed of an air column that expands and contracts by compressed air and a flat airtight bag and expands by compressed air The ship according to claim 1, further comprising an air bag, wherein the rainwater countermeasure cover is formed.   A plurality of air beams are arranged in the front-rear direction of the ship, and the air beam is connected to an air support extending in the front-rear direction of the ship, and the air support is connected to the air column. The ship according to any one of claims 1 to 3, wherein the ship is configured such that the air support moves up and down by the expansion and contraction of the air column to open and close the side opening.   The ship according to any one of claims 1 to 4, wherein rainwater is collected along the air support at an end of the rainwater countermeasure cover.   The rainwater-prevention cover is formed of a sheet that is partially or wholly lifted on a suspension line supported by a support column that stands up along with the opening of the hatch cover, and a part of the suspension line is expanded and contracted. The ship according to claim 1, wherein the side opening is opened and closed.   7. The curtain member according to claim 1, wherein a curtain member is provided in the side opening so as to allow a part of the cargo handling device to pass therethrough and to prevent rainwater from entering the cargo hold. The listed ship.   A part of the rainwater protection cover is connected directly or indirectly to the hatch cover or a crane post on the deck of the ship, and the rainwater protection cover is fixed so as to cover the hatch. The ship according to any one of claims 1 to 7.   The rainwater countermeasure cover is stored in a storage chamber formed on the hatch cover or a storage chamber disposed on the hatch cover in a state where the hatch cover covers the hatch. The ship according to any one of 1 to 8.   An upper opening provided with a flexible lid member is provided on an upper portion of the rainwater countermeasure cover so that the grab can be taken in and out during cargo handling and can be prevented from passing rainwater when closed. The ship according to any one of claims 1 to 9.

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