Hatch cover design program and design device

Abstract

To provide a hatch cover design program and a design device that can reduce the burden on designers. [Solution] The hatch cover design program causes a computer to execute a design file reading process that reads a design file recording design parameters entered by a designer, a standard model calling process that calls a standard model representing the standard structure of a hatch cover, and a product model generation process that adjusts the standard model based on the design parameters to generate a product model. Because the product model is automatically generated based on the design parameters, it is no longer necessary for the designer to adjust the dimensions of each component of the hatch cover, reducing the burden on the designer.

Description

[Technical Field]

[0001] The present invention relates to a hatch cover design program and a design device, and more particularly to a program and a device for designing hatch covers for ships. [Background technology]

[0002] Cargo ships are provided with hatches (hatches) for loading and unloading cargo into and from holds. The hatches are also provided with hatch covers (hatch lids) that can be opened and closed. The hatch covers are opened when loading and unloading cargo into and from the holds. The hatch covers are closed while the ship is underway to prevent seawater from splashing on the cargo inside the holds. For example, Patent Document 1 discloses a single-pull type hatch cover. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 7-10073 Summary of the Invention [Problem to be solved by the invention]

[0004] Even when the same type of hatch cover is used, hatch dimensions and other specifications vary from ship to ship, so hatch covers must be designed for each ship. Furthermore, designers must take into consideration factors such as the watertightness of the hatch cover when closed and whether components interfere with each other when the hatch cover is opened or closed, placing a significant burden on the designer.

[0005] In view of the above circumstances, the present invention aims to provide a hatch cover design program and a design device that can reduce the burden on designers. [Means for solving the problem]

[0006] The hatch cover design program of the first embodiment is a program for designing a hatch cover having a configuration in which multiple panels are connected together, and is characterized in that it causes a computer to execute a design file reading process for reading a design file that records design parameters input by a designer, a standard model calling process for calling a standard model that represents the standard structure of the hatch cover, and a product model generation process for adjusting the standard model based on the design parameters to generate a product model. The hatch cover design program of the second aspect is characterized in that, in the product model generation process, the number of panels and the width and length of the panels of the standard model are adjusted. The hatch cover design program of the third aspect is characterized in that in the second aspect, in the product model generation process, the length of a first panel provided at one end of the plurality of panels, the length of a final panel provided at the other end of the plurality of panels, and the length of one or more intermediate panels provided between the first panel and the final panel are adjusted to different lengths. A fourth aspect of the hatch cover design program is the second aspect, wherein the design file records the width and length of the hatch on which the hatch cover is to be provided as the design parameters. A fifth aspect of the hatch cover design program is the second aspect, wherein the design file records the width and length of the hatch cover as the design parameters. A sixth aspect of the hatch cover design program is the second aspect, wherein the design file records the number of panels and the width and length of the panels as the design parameters. A seventh aspect of the hatch cover design program is characterized in that, in the third aspect, the design file records the number of panels, the width of the panels, the length of the first panel, the length of the final panel, and the length of the intermediate panel as the design parameters. The hatch cover design device of an eighth aspect is characterized in that it comprises a computer having installed thereon the hatch cover design program of any one of the first to seventh aspects. [Effects of the Invention]

[0007] According to the present invention, a product model is automatically generated based on design parameters, which eliminates the need for the designer to adjust the dimensions of the individual components of the hatch cover, thereby reducing the burden on the designer. [Brief explanation of the drawings]

[0008] [Figure 1] FIG. [Figure 2] Figure (A) is a side view of the hatch cover in the closed state, and Figure (B) is a side view of the hatch cover in the open state. [Figure 3] FIG. 1 is a functional block diagram of a hatch cover design device according to an embodiment. [Figure 4] 4 is a flowchart showing the processing performed by the hatch cover design device. DETAILED DESCRIPTION OF THE INVENTION

[0009] Next, an embodiment of the present invention will be described with reference to the drawings. (hatch cover) Prior to describing the hatch cover design device according to one embodiment of the present invention, a single-pull type hatch cover to be designed will be described as an example.

[0010] As shown in Figures 1, 2(A), and 2(B), a hatch 10 opens on the deck of a ship for loading and unloading cargo into the hold. The hatch 10 is generally shaped like a long rectangle that is aligned along the fore-and-aft direction of the ship. A coaming 11 is provided on the edge of the hatch 10. The coaming 11 is a wall member that is installed perpendicular to the deck. The height of the coaming 11 from the deck to its upper edge is set to a predetermined dimension. The portions of the coaming 11 that are installed on the left and right sides of the ship along the fore-and-aft direction are called side coamings 12, and the portions that are installed on the front and rear of the ship along the left-and-right direction are called end coamings 13.

[0011] A containment wall 23 is provided adjacent to one end of each side coaming 12. The containment wall 23 is a wall member erected on the deck. The upper edge of each containment wall 23 forms a storage rail 22. The storage rail 22 is located at a position higher than the upper surface 21 of the side coaming 12. The storage rail 22 also has an inclined portion located on the coaming 11 side and a horizontal portion that smoothly connects to the inclined portion. In the closed state, the hatch cover 30 is stored between the left and right containment walls 23, 23. Therefore, either the fore or aft of the ship, the side where the containment wall 23 is located is called the storage side.

[0012] The hatch cover 30 is configured by connecting multiple panels 31. Each panel 31 is a strip-shaped member that is long in the left-right direction of the ship. The long sides of adjacent panels 31 are connected to each other. The panel 31 located at one end of the multiple panels 31 is called the first panel 31F, and the panel 31 located at the other end is called the last panel 31E. The first panel 31F is located on the storage side, and the last panel 31E is located on the opposite side of the storage side. In addition, one or more panels 31 located between the first panel 31F and the last panel 31E are called intermediate panels 31M.

[0013] Travel rollers 32 and storage rollers 33 are provided on both side surfaces of each panel 31. The travel rollers 32 are provided near the bottom surface of each panel 31 and roll on the upper surface 21 of the side coaming 12. The storage rollers 33 are provided near the center of the side surface of each panel 31 and roll on the storage rails 22. Adjacent panels 31, 31 are connected by a link (not shown).

[0014] An endless chain 24 is connected to both side surfaces of the final panel 31E via brackets. The endless chain 24 is wound around a sprocket 25. The sprocket 25 is connected to a hydraulic motor 27 via a drive shaft 26. The hydraulic motor 27 drives the sprocket 25 to rotate, transmitting a driving force to the endless chain 24.

[0015] The following operations are performed to open the hatch cover 30. In the state shown in FIG. 2(A), a hydraulic jack (not shown) is used to push up the entire hatch cover 30, aligning the height of the traveling rollers 32 with the upper surface 21 of the side coaming 12. Next, the hydraulic motor 27 drives the endless chain 24, which pulls each panel 31 toward the storage side. Each panel 31 is horizontal and moves over the upper surface 21 of the side coaming 12 by the traveling rollers 32. As the panel 31 approaches the storage wall 23, the storage rollers 33 come into contact with the storage rail 22. As the storage rollers 33 roll, the panel 31 is lifted and stands up vertically. As the panel 31 is pulled, the multiple panels 31 rise up and are folded in order. As the final panel 31E rises, the hatch cover 30 is stored between the storage walls 23, 23, as shown in FIG. 2(B).

[0016] The following operation is performed to close the hatch cover 30. In the state shown in Figure 2(B), the hydraulic motor 27 drives the endless chain 24 in the reverse direction, pulling each panel 31 to the opposite side of the storage side. Each panel 31 is moved on the storage rails 22 by the storage rollers 33, and as a result, it is moved from a vertical position to a horizontal position. As shown in Figure 2(A), after the final panel 31E reaches the end coaming 13 on the opposite side of the storage side, the entire hatch cover 30 is lowered by a hydraulic jack (not shown). This closes the hatch 10 with the hatch cover 30.

[0017] As shown in FIG. 1, the dimensions of each part are defined as follows in this specification. The dimension of the hatch 10 in the transverse direction of the ship is defined as width W h The dimension of the hatch 10 in the fore-and-aft direction of the ship is called the length L h The dimension of the hatch cover 30 in the transverse direction of the ship is called the width W c The dimension of the hatch cover 30 in the fore-and-aft direction of the ship is called the length L c The dimension of the panel 31 in the ship's transverse direction is called the width W p However, the width W of panel 31 p is the width of the hatch cover 30 c The dimension of the panel 31 in the fore-and-aft direction of the ship is the length L p However, the length of the first panel 31F is L p the length L f The length of the final panel 31E is L p the length L e The length of the middle panel is 31M. p the length L m The number of panels 31 constituting the hatch cover 30 is referred to as the number N.

[0018] (Hatch cover design program, design device) Next, a hatch cover design device according to one embodiment of the present invention will be described. The hatch cover design device is a device for designing the above-described hatch cover 30. Here, designing the hatch cover 30 refers to the task of determining the number of components that make up the hatch cover 30, the dimensions of each part, etc. so that they meet the required specifications, and more specifically, it refers to creating design drawings for the hatch cover 30.

[0019] As shown in Figure 3, the hatch cover design device AA has various functions. The hatch cover design device AA is made up of a computer including a CPU, memory, etc. The functions of the hatch cover design device AA are realized by installing a hatch cover design program on the computer. The hatch cover design program may be made up of multiple subprograms. The hatch cover design program may include commercially available software such as computer-aided design (CAD) software. The hatch cover design program may be stored in a computer-readable storage medium.

[0020] The hatch cover design device AA has a memory unit 41, a file editing unit 42, a design file reading unit 43, a standard model calling unit 44, and a product model generating unit 45. These may be configured as hardware, or may be realized by installing a program on a computer. The hatch cover design device AA also has input devices 46 such as a keyboard and a mouse. The hatch cover design device AA also has output devices 47 such as a display and a printer.

[0021] The memory unit 41 can be configured with a storage device such as a hard disk. The memory unit 41 stores a design file and a standard model. The design file is a file that records design parameters of the hatch cover 30. The format of the design file is not particularly limited, but for example, a file that can be saved, displayed, and edited using spreadsheet software can be used.

[0022] The standard model is a model that represents the standard structure of the hatch cover 30 and serves as a design template. The standard model includes structural information on various components that make up the hatch cover 30, such as the panels 31, running rollers 32, and storage rollers 33. The standard model may be a three-dimensional model or a two-dimensional model.

[0023] The file editing unit 42 has a function of editing the design file. The design file is manually edited by the designer. For example, the file editing unit 42 outputs the contents of the design file to the output device 47. The designer operates the input device 46 to input design parameters. The file editing unit 42 stores the design file with the input design parameters in the memory unit 41.

[0024] The file editing unit 42 may be realized by commercially available software such as spreadsheet software. In this case, it is not necessary to realize the file editing unit 42 by using the hatch cover design program. The file editing unit 42 can be realized by installing spreadsheet software on a computer separately from the hatch cover design program.

[0025] The design file reading unit 43 reads the design file stored in the memory unit 41 and acquires the design parameters. The standard model calling unit 44 calls the standard model stored in the memory unit 41. The product model generation unit 45 adjusts the standard model based on the design parameters to generate a product model. Here, adjusting the standard model means changing the number of components that make up the standard model or changing the dimensions of each part. The hatch cover 30 is designed by adjusting the standard model. The product model generation unit 45 may store the generated product model in the memory unit 41. The product model is a model that represents the structure of the hatch cover 30 after design. The product model may be a three-dimensional model or a two-dimensional model.

[0026] The design file reading unit 43, the standard model calling unit 44, and the product model generating unit 45 may be realized by adding functions to computer-aided design software.

[0027] Next, the processing performed by the hatch cover design device AA will be described based on the flowchart shown in FIG. First, the designer inputs design parameters into a design file in consideration of the specifications required for the hatch cover 30 (S10: design parameter input step). The design file into which the design parameters have been input is stored in the storage unit 41.

[0028] Next, the design file reading unit 43 reads the design file stored in the storage unit 41 and acquires design parameters (S20: design file reading step). Next, the standard model calling unit 44 calls the standard model stored in the storage unit 41 (S30: standard model calling step). Then, the product model generating unit 45 adjusts the standard model based on the design parameters and generates a product model (S40: product model generating step).

[0029] Next, the design parameters and product model generation will be explained in detail. The hatch cover 30 is composed of various components, and multiple components with the same or similar structure are used. For example, the multiple intermediate panels 31M are all basically of the same structure. Furthermore, each panel 31 has accompanying components such as running rollers 32 and storage rollers 33, and each panel 31 has components with the same or similar structure arranged in the same or similar positions. Therefore, an efficient design can be achieved by adjusting the dimensions of the same or similar parts in conjunction with each other.

[0030] For example, in the product model generation process, the number N of panels 31 of the standard model is adjusted, and the width W of each panel 31 is p and length L p Here, the product model is generated by adjusting the length L of the first panel 31F. f , length L of the last panel 31E e , and the length of the middle panel 31M m It is preferable to adjust the length L of the first panel 31F to different lengths to avoid interference between members during storage. fis set to be longer than the other panels 31. In addition, the length L of the final panel 31E e is the length of the hatch cover 30 L h This is an adjustment margin for making the length of the panel 31 as desired, and is set shorter than the other panels 31.

[0031] To adjust these numbers and dimensions, the design file specifies the width W of hatch 10 as a design parameter. h and length L h The overlap amount between the hatch 10 and the hatch cover 30 in the transverse direction of the ship is determined in advance, and the overlap amount is recorded as the width W of the hatch 10. h Adding this to the width W of the hatch cover 30 c and the width W of panel 31 p can be calculated.

[0032] In addition, the overlap amount between the hatch 10 and the hatch cover 30 in the fore-and-aft direction of the ship is determined in advance, and the overlap amount is set to the length L of the hatch 10. h Adding this to the length of the hatch cover 30, L c The steel plates constituting the panel 31 must be within transportable dimensions. From this perspective, the length L of the panel 31 p The maximum value of the length L of the hatch cover 30 is determined. c and the length L of panel 31 p The number N of panels 31 can be calculated from the maximum value of the length L of the hatch cover 30. c and the number N of panels 31, the length L of the panel 31 p can be calculated.

[0033] Length of the first panel 31F f , length L of the last panel 31E e , and the length of the middle panel 31M m In this case, it is preferable to adjust the length L of the first panel 31F to different lengths. f and the length of the middle panel 31M m and the length L of the final panel 31E e and the length of the middle panel 31M mThe difference between these and the length L of the hatch cover 30 is determined in advance. c and the number N of panels 31, the length L of the first panel 31F is f , length L of the last panel 31E e , and the length of the middle panel 31M m can be calculated.

[0034] As mentioned above, the width W of hatch 10 h and length L h From the above, the number of panels 31 N, the width W of the panels 31 p and length L p (Length of the first panel 31F L f , length L of the last panel 31E e , and the length of the middle panel 31M m ) can be calculated automatically. This calculation may be performed by the calculation function of the spreadsheet software that implements the file editing unit 42, or may be performed by the product model generation unit 45. A product model can be generated by adjusting the standard model according to the calculated numbers and dimensions.

[0035] The design file is for the width W of hatch 10. h and length L h Instead of or in addition to the width W of the hatch cover 30 c and length L c The width W of the hatch cover 30 may be recorded as a design parameter. c and length L c Therefore, the number of panels 31, N, and the width of the panels 31, W p and length L p (Length of the first panel 31F L f , length L of the last panel 31E e , and the length of the middle panel 31M m ) can be calculated automatically. c and length L c If it is possible to directly set the overlap amount between the hatch 10 and the hatch cover 30, the degree of freedom in designing the amount of overlap between the hatch 10 and the hatch cover 30 will increase.

[0036] The design file contains the number N of panels 31 and the width W of the panels 31 as design parameters. p and length L p Alternatively, the design file may record the number N of panels 31, the width W of the panels 31, and the like as design parameters. p , length L of the first panel 31F f , length L of the last panel 31E e , and the length of the middle panel 31M m Further, more detailed dimensions of the hatch cover 30 may be recorded as design parameters in the design file. The more design parameters stored in the design file, the greater the degree of freedom in design.

[0037] As described above, the hatch cover design device AA of this embodiment automatically generates a product model based on the design parameters input by the designer. This eliminates the need for the designer to adjust the dimensions of each component of the hatch cover 30, reducing the burden on the designer. Furthermore, because the product model is automatically generated, it is less likely that the designer will make an operational error, making it possible to generate a consistent product model. Because the designer only needs to set the design parameters, a high-quality product model can be obtained regardless of the designer's level of skill.

[0038] After the hatch cover design device AA generates a product model, the designer may further adjust the details of the product model using computer-aided design software, etc. Even in this case, the basic structure is already completed at the stage when the product model is generated, thereby reducing the burden on the designer.

[0039] The above has been explained using the example of a single-pull type hatch cover 30. However, the type of hatch cover that the hatch cover design device AA can design is not limited to the single-pull type. The program and device may also be capable of designing other types of hatch covers, such as a retractable type. [Explanation of symbols]

[0040] 10 Hatch 22 Storage rail 30 hatch cover Panel 31 32 Running roller 33 Storage roller AA hatch cover design device 41 Storage section 42 File Editorial Department 43 Design file reading section 44 Standard Model Call Unit 45 Product model generation unit 46 Input Devices 47 Output Device

Claims

1. A program for designing a hatch cover having a configuration in which a plurality of panels are connected together, a design file reading step of reading a design file that records design parameters input by a designer; a standard model calling step of calling a standard model representing a standard structure of the hatch cover; a product model generation step of adjusting the standard model based on the design parameters to generate a product model. A hatch cover design program.

2. In the product model generation step, the number of panels and the width and length of the panels of the standard model are adjusted.

2. The hatch cover design program according to claim 1.

3. In the product model generation step, the length of a first panel provided at one end of the plurality of panels, the length of a final panel provided at the other end of the plurality of panels, and the length of one or more intermediate panels provided between the first panel and the final panel are adjusted to different lengths.

3. The hatch cover design program according to claim 2.

4. The design file records, as the design parameters, the width and length of the hatch on which the hatch cover is to be provided.

3. The hatch cover design program according to claim 2.

5. The design file records the width and length of the hatch cover as the design parameters.

3. The hatch cover design program according to claim 2.

6. The design file records the number of panels, and the width and length of the panels as the design parameters.

3. The hatch cover design program according to claim 2.

7. The design file records the number of panels, the width of the panels, the length of the first panel, the length of the final panel, and the length of the intermediate panel as the design parameters.

4. The hatch cover design program according to claim 3.

8. A computer having the hatch cover design program according to any one of claims 1 to 7 installed thereon. A hatch cover design device characterized by:

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