JP6650781B2 - Ship - Google Patents

Description

  The present invention relates to a ship.

  Ships are manufactured by connecting a plurality of steel materials by welding or the like. For example, Patent Literature 1 describes a structure in which a plurality of plate-shaped members are connected to ensure sufficient strength at the bow and stern of a ship. The ship described in Patent Literature 1 has an oblique plate member arranged at an angle close to perpendicular to an outer plate of a bow portion, a vertical plate member in a hull, and a horizontal plate member. In this ship, since the oblique plate is disposed at an angle close to the vertical with respect to the outer plate, the load acting on the outer plate can be effectively transmitted to the vertical plate and the horizontal plate in the hull. As a result, in this ship, sufficient strength is secured against the load received by the bow.

  By the way, in addition to the strength, it is necessary for a ship to satisfy a requirement regarding a radar reflection cross section (RCS) or to provide a structure for passing wind. In such a case, for example, the front wall facing the bow side of the structure provided on the upper part of the boat body is arranged so as to be inclined with respect to the bow-sail direction. As a result, the angle between the front wall of the structure and the hull skin constituting the side of the ship may become acute.

JP-A-2002-347690

  However, if it is attempted to join members that are arranged at an acute angle to each other by welding, it becomes difficult to secure a space in which a welding torch can be inserted. As a result, the welding workability between these members is reduced.

  The present invention has been made to solve the above problems, and has as its object to provide a ship capable of improving welding workability.

In order to solve the above problems, the present invention proposes the following means.
The ship according to the first aspect of the present invention has a main hull having a hull shell constituting a pair of left and right sideboards, an upper structure side wall continuing upward from the hull shell, and a center side in the ship width direction. And an upper structure having an upper structure front wall extending inclining toward the bow side in the bow-and-sail direction as it goes. And an intervening portion that connects the end of the upper structure to the side wall of the upper structure. It has a first intervening wall connected to the structure side wall.

  According to such a configuration, even when the upper structure side wall and the upper structure front wall are arranged so that the angle formed therebetween is an acute angle, the area where a narrow space is formed by the first intervening wall is reduced. be able to.

  Further, in the ship according to the second aspect of the present invention, in the first aspect, the interposed portion connects the first interposed wall and an outer end of the upper structure front wall in the boat width direction. It may have a second intervening wall.

  According to such a configuration, the rigidity of the interposed portion is improved by interposing the second interposed wall as compared with a case where only the first interposed wall is provided to connect the upper structure side wall and the upper structure front wall. Can be done. Therefore, the stress level generated between the upper structure side wall and the upper structure front wall can be reduced.

  In the vessel according to the third aspect of the present invention, in the second aspect, the interposition portion may include a third interposition wall connecting the second interposition wall and the upper structure side wall. .

  According to such a configuration, the load acting in the direction pressed toward the upper structure side wall is dispersed to the first and third intervening walls via the second intervening wall. Therefore, the deformation of the interposed portion can be suppressed. That is, the rigidity of the interposed portion can be improved as compared with a structure in which the first interposed wall and the second interposed wall are merely connected.

  Further, in the vessel according to the fourth aspect of the present invention, in the third aspect, the interposition portion is such that a distance in the bow-stern direction between the first interposition wall and the third interposition wall is equal to the upper structure side wall. The distance may be increased as approaching.

  According to such a configuration, as compared with the case where the first intervening wall and the third intervening wall are arranged perpendicular to the upper structure side wall, the load acting in the direction pressed toward the upper structure side wall Can be more effectively dispersed. Moreover, since the space near the upper structure side wall can be expanded, the weldability of the first welded portion and the third welded portion can be improved.

  Further, in the ship according to the fifth aspect of the present invention, in any one of the second to fourth aspects, the interposed portion connects the upper end surfaces of the first interposed wall and the second interposed wall. It may have an intervening top plate.

  According to such a configuration, it is possible to form a closed structure between the first intervening wall, the second intervening wall, and the upper structure side wall by the intervening top plate. Therefore, the rigidity as an interposition part can be improved.

  Further, in the vessel according to the sixth aspect of the present invention, in any one of the first to fifth aspects, the vessel is continuous upward from the hull outer plate, and is located on the bow side in the bow-stern direction of the upper structure side wall. A connected bulwark may be provided, and the intervening portion may be provided at an end of the upper structure side wall on the bow side.

  According to this configuration, even if the space between the upper structure front wall and the upper structure side wall and the bulwark are continuously formed, the narrow space is reduced by the intervening portion. A region to be formed can be reduced.

  Further, in the ship according to the seventh aspect of the present invention, in any one of the first to fifth aspects, the vessel is continuous upward from the hull outer panel, and is arranged in the bow-stern direction with respect to the upper structure side wall. May be provided at a distance from the bow of the upper structure, and the intervening portion may be provided at an end of the side wall of the upper structure on the bow side.

  According to such a configuration, since the bulwark and the upper structure side wall are separated from each other, it is possible to suppress the stress between the upper structure side wall and the interposed portion from affecting the bulwark. In addition, since the interposed portion is provided at the bow-side end of the upper structure side wall, the bulwark and the interposed portion can be arranged independently, and the connection between the upper structure side wall and the interposed portion can be formed. Space becomes easier to secure.

  Further, in the ship according to the eighth aspect of the present invention, in the aspect according to any one of the sixth and seventh aspects, the interposed portion may be a surface facing upward of the bulwark when viewed from the ship width direction. Alternatively, it may be arranged below.

  According to such a configuration, when the main hull is viewed from the outside, it is possible to prevent the interposed portion from being seen by the bulwark. Therefore, it is possible to prevent the intervening portion from affecting the appearance of the ship.

  According to the present invention, welding workability can be improved.

It is a schematic diagram showing a ship of an embodiment of the present invention. It is an important section enlarged drawing showing an intervention part of a first embodiment of the present invention. FIG. 3 is a top view illustrating an interposition portion according to the first embodiment of the present invention. It is a top view showing an intervention part of a second embodiment of the present invention. It is a top view showing an intervention part of a third embodiment of the present invention. It is a top view showing an intervention part of a fourth embodiment of the present invention.

<< First Embodiment >>
Hereinafter, a ship 1 according to a first embodiment of the present invention will be described with reference to the drawings.
The marine vessel 1 includes a main hull 10, an upper structure 20, and a bulwark 30, as shown in FIG. The ship 1 includes, for example, a ship and a vehicle carrier.

The main hull 10 has a hull shell 11 and a deck 12.
The hull outer panel 11 forms a pair of left and right side sides 11 a of the main hull 10. The hull outer panel 11 is a plate-shaped member that forms an outer shell of the hull.
The deck 12 is provided on the main hull 10. The deck 12 extends in the horizontal direction, and is fixed to the side 11a at both left and right ends. That is, the deck 12 extends over a pair of left and right side sides 11a in the ship width direction.

  The upper structure 20 is provided on the deck 12. The upper structure 20 of the present embodiment is, for example, a box-shaped superstructure. The upper structure 20 has an upper structure side wall 21, an upper structure front wall 22, and the interposition part 5.

  The upper structure side wall 21 is formed continuously upward from the hull outer panel 11. The upper structure side wall 21 of the present embodiment constitutes a surface of the upper structure 20 facing outward in the boat width direction. That is, the surface of the upper structure side wall 21 facing outward in the ship width direction is formed integrally with the hull outer panel 11. A pair of upper structure side walls 21 are provided on the left and right sides in the boat width direction. The upper structure side wall 21 has a plate shape and extends vertically above the deck 12.

  The upper structure front wall 22 is inclined toward the center of the main hull 10 in the width direction of the main hull 10 and extends toward the bow of the main hull 10 in the fore-and-aft direction. The upper structure front wall 22 extends from the upper structure side walls 21 on both sides in the ship width direction via the interposed portion 5 described later. A pair of upper structure front walls 22 are formed symmetrically with respect to the center position of the deck 12 in the ship width direction as a boundary. In other words, the pair of upper structure front walls 22 extend from the upper structure side wall 21 toward the bow so as to intersect at the center position of the deck 12 in the boat width direction when viewed from above in the vertical direction. . When viewed from above in the vertical direction, the upper structure is formed such that the angle formed by the surface of the upper structure front wall 22 facing the bow and the surface of the upper structure side wall 21 facing the inside in the boat width direction is an acute angle. The front wall 22 is provided. The upper structure front wall 22 has a plate shape and extends vertically above the deck 12. The upper structure front wall 22 has an opening formed below the end portion in the width direction of the ship so that the interposed portion 5 can be fitted therein.

  The interposed portion 5 connects the outer end of the upper structure front wall 22 in the ship width direction and the upper structure side wall 21. The interposed portion 5 of the present embodiment includes a vertically lower end, which is a side connected to the deck 12, of the ends of the upper structure front wall 22 in the ship width direction, and the upper structure side wall 21. I'm connected. That is, in the present embodiment, the upper structure front wall 22 has a region in which the vertical lower opening is formed connected to the interposition portion 5, and a region in which the vertical upper opening is not formed corresponds to the upper structure. It is directly connected to the object side wall 21. The interposition part 5 has a first interposition wall 51, a second interposition wall 52, a third interposition wall 53, and an interposition top plate 54, as shown in FIGS.

  The first intervening wall 51 is connected to the upper structure side wall 21 at an angle larger than the angle on the bow side between the upper structure front wall 22 and the upper structure side wall 21. The first intervening wall 51 of the present embodiment has a rectangular plate shape. The first intervening wall 51 is vertically connected to the upper structure side wall 21. The first welded portion 61 is formed by welding the outer end of the first intervening wall 51 in the ship width direction and the upper structure side wall 21.

  The second intervening wall 52 connects the first intervening wall 51 and an outer end of the upper structure front wall 22 in the boat width direction. The second intervening wall 52 of the present embodiment has a rectangular plate shape. The second intervening wall 52 extends in the bow-stern direction. The second intervening wall 52 is vertically connected to the first intervening wall 51. The second welded portion 62 is formed by welding between the end of the second interposition wall 52 on the stern side in the bow and stern direction and the inner end of the first interposition wall 51 in the width direction of the hull. . The second intervening wall 52 is connected to the upper structure front wall 22 at an angle larger than the angle on the bow side between the upper structure front wall 22 and the upper structure side wall 21. The second intervening wall 52 is connected to a vertically lower side of an end of the upper structure front wall 22 in the boat width direction. The third welded portion 63 is formed by welding between the end of the second intervening wall 52 on the bow side in the bow and tail direction and the outer end of the upper structure front wall 22 in the width direction of the ship. I have.

  The third interposition wall 53 connects the second interposition wall 52 and the upper structure side wall 21. The third intervening wall 53 of the present embodiment has a rectangular plate shape. The third intervening wall 53 is vertically connected to the second intervening wall 52 on the bow side of the first intervening wall 51. The inner end of the third intervening wall 53 in the ship width direction is closer to the end of the second intervening wall 52 on the bow side in the bow direction and the outer end of the upper structure front wall 22 in the ship width direction. The connection is made via a third welding portion 63. The third intervening wall 53 is vertically connected to the upper structure side wall 21. The fourth welded portion 64 is formed by welding the outer end of the third intervening wall 53 in the ship width direction and the upper structure side wall 21.

  The intervening top plate 54 connects the upper end surfaces of the first intervening wall 51 and the second intervening wall 52. The intervening top plate 54 of the present embodiment connects the upper end surfaces of the first intervening wall 51, the second intervening wall 52, and the third intervening wall 53 to the upper structure side wall 21. That is, the intervening top plate 54 is disposed so as to cover the box-shaped space surrounded by the first intervening wall 51, the second intervening wall 52, the third intervening wall 53, and the upper structure side wall 21 from above in the vertical direction. Have been. The intervening top plate 54 has a rectangular plate shape. A top surface welded portion (not shown) is formed by welding between the upper end surfaces of the intervening top plate 54 and the first intervening wall 51, the second intervening wall 52, and the third intervening wall 53, respectively. I have.

  The bulwark 30 is a wave-shaped plate-shaped member provided at the bow of the main hull 10. The bulwark 30 is formed continuously upward from the hull outer panel 11. The bulwark 30 is connected to the bow side of the upper structure side wall 21 in the bow direction. The bulwark 30 extends continuously from the upper structure side wall 21 to the bow of the main hull 10. A pair of bulwarks 30 are provided on the left and right sides of the deck 12 in the boat width direction. The bulwark 30 is provided on the bow side in the bow-stern direction with respect to the interposition part 5. The bulwark 30 of the present embodiment is provided on the bow side of the fourth welded portion 64 which is a connection portion between the third intervening wall 53 and the upper structure side wall 21. That is, the interposition part 5 is provided facing the connection part between the upper structure side wall 21 and the bulwark 30. Specifically, the third intervening wall 53 is provided at the end of the upper structure side wall 21 on the bow side, and the second intervening wall 52 is more stern than the connection between the upper structure side wall 21 and the bulwark 30. Extending towards.

  The bulwark 30 extends above the interposition portion 5 when viewed from the width direction. That is, the interposed portion 5 of the present embodiment is disposed below the surface facing upward of the bulwark 30 when viewed from the boat width direction.

  According to the marine vessel 1 of the first embodiment as described above, an angle larger than an angle formed by a surface of the upper structure front wall 22 facing the bow and a surface of the upper structure side wall 21 facing the inside in the boat width direction. , The first intervening wall 51 is connected to the upper structure side wall 21. By having such a first intervening wall 51, a region where a narrow space is formed even if the upper structure side wall 21 and the upper structure front wall 22 are arranged so that the angle formed therebetween is acute. Can be reduced.

  For example, if a narrow portion where a space where a welding torch or the like can be appropriately arranged and welded cannot be secured is formed, it is difficult to ensure the integrity of the weld bead. Specifically, it becomes difficult to ensure reliable penetration and sufficient smoothness. As a result, there is a possibility that the fatigue strength of the welded portion cannot be secured. In particular, the upper structure side wall 21 that is continuous with the hull outer panel 11 is greatly affected by the vertical bending of the main hull 10 in the direction of the main hull 10 when the marine vessel 1 runs. As a result, high stress is repeatedly generated between the upper structure side wall 21 and the upper structure front wall 22 which are structurally discontinuous. However, by reducing the narrow space between the upper structure side wall 21 and the upper structure front wall 22 by the first intervening wall 51, welding work between the upper structure side wall 21 and the upper structure front wall 22 is performed. Performance can be improved. Therefore, the fatigue strength between the upper structure side wall 21 and the upper structure front wall 22 can be improved.

  Further, the upper structure front wall 22 is connected to the first intervening wall 51 via a second intervening wall 52 that is vertically connected to the first intervening wall 51. Therefore, the rigidity of the interposition part 5 is improved by interposing the second interposition wall 52 as compared with the case where only the first interposition wall 51 is provided and the upper structure side wall 21 and the upper structure front wall 22 are connected. Can be. Therefore, the stress level generated between the upper structure side wall 21 and the upper structure front wall 22 can be reduced.

  Further, the second interposed wall 52 is connected to the upper structure side wall 21 by the first interposed wall 51 and the third interposed wall 53. Therefore, the load acting in the direction pressed toward the upper structure side wall 21 is distributed to the first intervening wall 51 and the third intervening wall 53 via the second intervening wall 52. Therefore, deformation (for example, buckling) of the interposition part 5 can be suppressed. That is, the rigidity of the interposed portion 5 can be further improved as compared with a structure in which the first interposed wall 51 and the second interposed wall 52 are merely connected.

  Further, the box-like structure closed between the first interposed wall 51, the second interposed wall 52, the third interposed wall 53, and the upper structure side wall 21 can be formed by the interposed top plate 54. Therefore, the rigidity of the interposition part 5 can be improved. That is, the rigidity between the upper structure side wall 21 and the upper structure front wall 22 can be further improved as compared with the case where the intervening top plate 54 is not provided.

  Further, the third intervening wall 53 is connected to a connection portion between the upper structure side wall 21 and the bulwark 30. That is, the interposition part 5 is provided facing the connection part between the upper structure side wall 21 and the bulwark 30. Therefore, since the upper structure side wall 21 and the bulwark 30 are formed continuously, the space between the upper structure front wall 22 and the bulwark 30 is narrower than in a state where the bullwork 30 is not formed. Even so, it is possible to reduce a region where a narrow space is formed by the interposition portion 5. Furthermore, the rigidity of the connecting portion between the upper structure side wall 21 and the bulwark 30 can be improved, and the stress level generated at the connecting portion between the upper structure side wall 21 and the bulwark 30 can be reduced.

  In addition, when the interposed portion 5 is viewed from the boat width direction, the interposed portion 5 is disposed below a surface facing upward of the bulwark 30. Therefore, when the main hull 10 is viewed from the outside, the intervening portion 5 can be prevented from being seen by the bulwark 30. Therefore, it is possible to prevent the intervening portion 5 from affecting the appearance of the boat 1.

<< Second embodiment >>
Next, a ship according to a second embodiment will be described with reference to FIG.
In the second embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and detailed description is omitted. The marine vessel of the second embodiment is different from the first embodiment in the interposition part.

  The interposed part 5A of the second embodiment does not have the third interposed wall 53 and the interposed top plate 54. That is, the interposed part 5A has only the first interposed wall 51A and the second interposed wall 52A as shown in FIG.

  The first intervening wall 51A of the second embodiment has a rectangular plate shape as in the first embodiment. The first intervening wall 51A is vertically connected to the upper structure side wall 21. The first intervening wall 51A is provided at an end of the upper structure side wall 21 on the bow side. The first welded portion 61A is formed by welding between the outer end of the first intervening wall 51A in the ship width direction and the upper structure side wall 21.

  The second intervening wall 52A of the second embodiment has a rectangular plate shape, as in the first embodiment. The second intervening wall 52A extends toward the bow beyond the connection between the upper structure side wall 21 and the bulwark 30. The second intervening wall 52A is vertically connected to the first intervening wall 51A. The second welded portion 62A is formed by welding between the end of the second intervening wall 52A on the stern side in the bow and stern direction and the inner end of the first intervening wall 51A in the width direction of the ship. . The second intervening wall 52A is connected to the upper structure front wall 22 at the same angle as in the first embodiment. The second intervening wall 52A is connected to the vertically lower end of the upper structure front wall 22 in the ship width direction. The third welded portion 63A is formed by welding between the end of the second intervening wall 52A on the bow side in the bow and tail direction and the outer end of the upper structure front wall 22 in the width direction of the ship. I have.

  According to the ship 1 of the second embodiment, since the third intervening wall 53 and the intervening top plate 54 are not provided, only the first welded portion 61A and the second welded portion 62A are welded. That is, it is possible to reduce the number of places that require welding, and to improve the efficiency when manufacturing the interposed portion 5A. In addition, since there are only the first intervening wall 51A and the second intervening wall 52A, a closed space completely surrounded by members is not formed. Therefore, welding between the members can be easily performed.

<< Third embodiment >>
Next, a ship according to a third embodiment will be described with reference to FIG.
In the third embodiment, the same components as those in the first embodiment and the second embodiment are denoted by the same reference numerals, and detailed description is omitted. The ship according to the third embodiment is different from the first embodiment and the second embodiment in the interposed portion.

  In the interposed portion 5B of the third embodiment, the distance between the first intervening wall 51B and the third intervening wall 53B in the bow-stern direction approaches the upper structure side wall 21. As shown in FIG. 5, the interposition part 5B has a first interposition wall 51B, a second interposition wall 52B, and a third interposition wall 53B.

  The first intervening wall 51B of the third embodiment has a rectangular plate shape, as in the first and second embodiments. The first intervening wall 51B is provided to be inclined toward the stern side as approaching the upper structure side wall 21 from the second intervening wall 52B. The first welded portion 61B is formed by welding between the outer end of the first intervening wall 51B in the ship width direction and the upper structure side wall 21.

  The second intervening wall 52B of the third embodiment has a rectangular plate shape as in the first and second embodiments. The second intervening wall 52B extends in the bow-stern direction. The second intervening wall 52B is connected to the first intervening wall 51B at an obtuse angle. The second welded portion 62B is formed by welding between the end of the second intervening wall 52B on the stern side in the bow and stern direction and the inner end of the first intervening wall 51B in the width direction of the ship. . The second intervening wall 52B is connected to the upper structure front wall 22 at the same angle as in the first embodiment. The second intervening wall 52B is connected to the vertically lower end of the upper structure front wall 22 in the ship width direction. Between the end of the second intervening wall 52B on the bow side in the aft direction, the outer end of the upper structure front wall 22 in the width direction, and the inner end of the third intervening wall 53B in the width direction. Are welded to form a third welded portion 63B.

  The third intervening wall 53B of the third embodiment has a rectangular plate shape, as in the first and second embodiments. The third intervening wall 53B is connected to the second intervening wall 52B at an obtuse angle on the bow side of the first intervening wall 51B. The inner end of the third intervening wall 53B in the ship width direction is closer to the end of the second intervening wall 52B on the bow side in the aft direction and the outer end of the upper structure front wall 22 in the ship width direction. The connection is made via a third welding portion 63B. The third intervening wall 53B is provided to be inclined toward the stern side as approaching the upper structure side wall 21 from the second intervening wall 52B. That is, the third intervening wall 53B is provided so as to gradually separate from the first intervening wall 51B as approaching the upper structure side wall 21. A fourth welded portion 64B is formed by welding between the outer end of the third intervening wall 53B in the ship width direction and the upper structure side wall 21.

  According to the ship 1 of the third embodiment, the first intervening wall 51B and the third intervening wall 53B are connected so that the distance in the stern direction gradually increases as approaching the upper structure side wall 21. Therefore, as compared with the case where the first intervening wall 51B and the third intervening wall 53B are arranged perpendicular to the upper structure side wall 21, the load acting in the direction pressed toward the upper structure side wall 21 is more effective. Can be dispersed. Further, since the space between the first intervening wall 51B and the third intervening wall 53B near the upper structure side wall 21 can be increased, the weldability of the first welded portion 61B and the third welded portion 63B can be improved. Can be improved.

<< 4th Embodiment >>
Next, a ship according to a fourth embodiment will be described with reference to FIG.
In the fourth embodiment, the same components as those in the first to third embodiments are denoted by the same reference numerals, and detailed description thereof will be omitted. The ship of the fourth embodiment differs from the first embodiment to the third embodiment in the connection state between the bulwark and the upper structure side wall.

  In the ship 1 of the fourth embodiment, the bulwark 30C and the upper structure side wall 21 are provided separately. The bulwark 30C of the fourth embodiment is provided away from the upper structure side wall 21 on the bow side in the bow and tail direction. The bulwark 30C is continuously formed upward from the hull outer panel 11, as in the other embodiments.

  It should be noted that the space between the bulwark 30C and the upper structure side wall 21 in the fourth embodiment is not required to be formed continuously in the bow-stern direction. Therefore, the bulwark 30C may be largely separated from the upper structure side wall 21 or may be slightly separated by a small slit.

  The interposition part 5C of the fourth embodiment has the same configuration as the second embodiment. Therefore, the first intervening wall 51C of the fourth embodiment is provided at the bow-side end of the upper structure side wall 21. The first welded portion 61C is formed by welding between the outer end of the first intervening wall 51C in the ship width direction and the upper structure side wall 21.

  In the second intervening wall 52C of the fourth embodiment, the second intervening wall 52C extends toward the bow beyond the bow-side end of the upper structure side wall 21. The second intervening wall 52C is vertically connected to the first intervening wall 51C. The second welded portion 62C is formed by welding between the end of the second intervening wall 52C on the stern side in the bow and stern direction and the inner end of the first intervening wall 51C in the width direction of the ship. . The second intervening wall 52C is connected to the upper structure front wall 22 at the same angle as in the first embodiment. The second intervening wall 52C is connected to a vertically lower end of the upper structure front wall 22 in the ship width direction. A third welded portion 63C is formed by welding between the end of the second intervening wall 52C on the bow side in the bow and tail direction and the outer end of the upper structure front wall 22 in the width direction of the ship. I have.

  According to the marine vessel 1 of the fourth embodiment, since the bulwark 30C and the upper structure side wall 21 are separated from each other, it is possible to prevent the stress between the upper structure side wall 21 and the interposed portion 5C from affecting the bullwork 30C. be able to. In addition, since the interposed portion 5C is provided at the bow-side end of the upper structure side wall 21, the bulwark 30C and the interposed portion 5C can be arranged independently, and the upper structure side wall 21 and the interposed portion are provided. It becomes easier to secure a space for a connection portion with 5C.

  As described above, the embodiments of the present invention have been described in detail with reference to the drawings. However, each configuration in each embodiment and a combination thereof are merely examples, and addition and omission of configurations are not deviated from the scope of the present invention. , Substitutions, and other changes are possible. The present invention is not limited by the embodiments, but is limited only by the claims.

  The interposed portions 5, 5A, 5B, and 5C are not limited to the structure having the second interposed walls 52, 52A, 52B, and 52C, but include only the first interposed walls 51, 51A, 51B, and 51C. It may be. With such a configuration, it is possible to further reduce the number of places that require welding, and to further improve the efficiency when manufacturing the interposed portions 5, 5A, 5B, and 5C.

  Further, for example, the bulwark may be configured to be separated from the upper structure side wall 21 while having the box-shaped intervening portion 5 as in the first embodiment.

  Further, the first intervening wall is not limited to being vertically connected to the upper structure side wall 21 or being connected at an obtuse angle as in the present embodiment. For example, even if the first intervening wall is connected at an acute angle to the upper structure side wall 21, the surface of the upper structure front wall 22 facing the bow side and the width of the upper structure side wall 21 in the ship width direction may be used. The angle may be larger than the angle formed by the inside.

DESCRIPTION OF SYMBOLS 1 ... Ship 10 ... Main hull 11 ... Hull shell 11a ... Sideboard 12 ... Deck 20 ... Upper structure 21 ... Upper structure side wall 22 ... Upper structure front wall 5, 5A, 5B, 5C ... Interposed part 51, 51A, 51B, 51C: first intervening wall 52, 52A, 52B, 52C: second intervening wall 53, 53B: third intervening wall 54: intervening top plate 61, 61A, 61B, 61C: first welded portion 62, 62A, 62B , 62C ... second welded parts 63, 63A, 63B, 63C ... third welded parts 64, 64B ... fourth welded parts 30, 30C ... blue work

Claims (8)

A main hull having a hull skin constituting a pair of left and right side sides,
An upper structure side wall having an upper structure side wall extending upward from the hull outer panel, and an upper structure front wall extending obliquely toward the bow side in the fore-and-aft direction toward the center side in the ship width direction; ,
The upper structure has an interposition portion connecting an outer end of the upper structure front wall in the ship width direction and the upper structure side wall,
A vessel having a first interposition wall connected to the upper structure side wall at an angle larger than an angle on the bow side between the upper structure front wall and the upper structure side wall.   2. The ship according to claim 1, wherein the interposed portion has a second interposed wall connecting the first interposed wall and an outer end of the upper structure front wall in the boat width direction. 3.   The marine vessel according to claim 2, wherein the interposed portion has a third interposed wall connecting the second interposed wall and the upper structure side wall.   The ship according to claim 3, wherein the interposed portion is separated as the distance between the first interposed wall and the third interposed wall in the bow direction approaches the side wall of the upper structure.   The ship according to any one of claims 2 to 4, wherein the interposed portion has an interposed top plate that connects upper end surfaces of the first interposed wall and the second interposed wall. A bulwark that is continuous upward from the hull skin and is connected to the bow side in the bow-sail direction of the upper structure side wall;
The ship according to any one of claims 1 to 5, wherein the interposition portion is provided at an end of the upper structure side wall on the bow side. A bulwark that is continuous upward from the hull skin panel and that is provided away from the upper structure side wall on the bow side in the bow and tail direction;
The ship according to any one of claims 1 to 5, wherein the interposition portion is provided at an end of the upper structure side wall on the bow side.   8. The boat according to claim 6, wherein the interposed portion is disposed below a surface facing upward of the bulwark when viewed from the boat width direction. 9.

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