JP2021112962A - Vessel - Google Patents

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JP2021112962A
JP2021112962A JP2020006107A JP2020006107A JP2021112962A JP 2021112962 A JP2021112962 A JP 2021112962A JP 2020006107 A JP2020006107 A JP 2020006107A JP 2020006107 A JP2020006107 A JP 2020006107A JP 2021112962 A JP2021112962 A JP 2021112962A
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ship
deck
mooring
continuous wall
pedestal
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JP2020006107A
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JP7382237B2 (en
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達広 涌田
Tatsuhiro Wakuta
達広 涌田
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Sumitomo Heavy Industries Marine and Engineering Co Ltd
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Sumitomo Heavy Industries Marine and Engineering Co Ltd
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Priority to JP2020006107A priority Critical patent/JP7382237B2/en
Priority to CN202011581429.6A priority patent/CN113135264A/en
Priority to KR1020210001177A priority patent/KR20210093165A/en
Publication of JP2021112962A publication Critical patent/JP2021112962A/en
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B3/00—Hulls characterised by their structure or component parts
    • B63B3/14—Hull parts
    • B63B3/48—Decks
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/04—Fastening or guiding equipment for chains, ropes, hawsers, or the like
    • B63B21/10—Fairleads
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B25/00—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby
    • B63B25/02—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods
    • B63B25/08—Load-accommodating arrangements, e.g. stowing, trimming; Vessels characterised thereby for bulk goods fluid

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Filling Or Discharging Of Gas Storage Vessels (AREA)
  • Jib Cranes (AREA)

Abstract

To provide a vessel capable of reducing weight of a mooring hardware and weight of a reinforcement member supporting the mooring hardware and reducing man hour regarding the reinforcement member.SOLUTION: A vessel 100 includes a deck provided on a hull, a continuous wall unit 18 rising upward from the deck and continuously surrounding the deck 10, and a mooring hardware 90 provided on an outer edge of the deck to have a rope go therethrough in mooring, and the continuous wall unit includes a portion to be provided on an inner side of the deck than the mooring hardware by bypassing the mooring hardware. Thus, spilling of load of the vessel is suppressed since the continuous wall unit is capable of surrounding with a continuous member on the deck. In addition, since the mooring hardware is provided on an outer side (outboard direction) than the continuous wall unit, height of accessory members such as a pedestal evading the continuous wall unit in the vertical direction is capable of being kept low.SELECTED DRAWING: Figure 5

Description

本発明は、船舶に関する。 The present invention relates to ships.

従来、以下の特許文献１に記載のように、甲板上に設けられロープの巻取り及び巻戻しを行う係船機と、甲板上に設けられロープを案内するチョックとを備えた船舶が知られている。この船舶におけるチョックは、係船機の外側（外舷方向）における船側外板に合わせた位置に設けられる。 Conventionally, as described in Patent Document 1 below, a ship equipped with a mooring machine provided on the deck for winding and rewinding the rope and a chock provided on the deck for guiding the rope has been known. There is. The chock in this ship is provided at a position aligned with the ship side outer plate on the outside (outer side direction) of the mooring machine.

特開２００５−１４５１９４号公報Japanese Unexamined Patent Publication No. 2005-145194

一般的に、船舶には、甲板に接し船側外板から上方に延在する連壁部が設けられている場合がある。連壁部は、例えば、シャーストレーキ（sheer strake）である。この連壁部は、荷油タンクに貯留している荷油等の積載物の船側外板又は海洋への流出を抑制している。上述のチョックは、船舶の係留のために甲板の外縁近傍に設けられることが求められているが、甲板の外縁には連壁部が設けられている。このため、連壁部を甲板上に設けるために、連壁部を上下方向に回避する台座をチョックの下方に設け、台座によりチョックを外側に張り出させる必要がある。しかしながら、係留金物（台座及びチョック）を連壁部の内側に設けた場合、連壁部を上下方向に回避する台座の高さが高くなるほど台座の設計荷重が増大する。これにより、係留金物の周辺の補強強度を高める必要があるため、当該係留金物を支持する補強部材の重量が増大し、補強部材の設計工数又は設置工数が増大するおそれがある。 In general, a ship may be provided with a continuous wall portion that is in contact with the deck and extends upward from the ship-side outer plate. The continuous wall portion is, for example, a sheer strake. This continuous wall portion suppresses the outflow of cargo such as cargo oil stored in the cargo oil tank to the ship's side skin or the ocean. The above-mentioned chock is required to be provided near the outer edge of the deck for mooring a ship, and a continuous wall portion is provided on the outer edge of the deck. Therefore, in order to provide the continuous wall portion on the deck, it is necessary to provide a pedestal below the chock to avoid the continuous wall portion in the vertical direction, and to project the chock outward by the pedestal. However, when mooring hardware (pedestal and chock) is provided inside the continuous wall portion, the design load of the pedestal increases as the height of the pedestal that avoids the continuous wall portion in the vertical direction increases. As a result, it is necessary to increase the reinforcing strength around the mooring hardware, so that the weight of the reinforcing member supporting the mooring hardware increases, and the design man-hours or installation man-hours of the reinforcing member may increase.

本発明は、係留金物の重量、及び係留金物を支持する補強部材の重量を低減させ、当該補強部材に係る工数を低減することができる船舶を提供することを目的とする。 An object of the present invention is to provide a ship capable of reducing the weight of a mooring hardware and the weight of a reinforcing member that supports the mooring hardware, and reducing the man-hours related to the reinforcing member.

本発明の一側面に係る船舶は、船体に設けられた甲板と、甲板から上方へ立ち上がり甲板を連続して取り囲む連壁部と、甲板の外縁に設けられ、係留を行うときにロープを通す係留金物と、を備え、連壁部は、係留金物を迂回して係留金物より甲板の内側に設けられる部位を有する。 The ship according to one aspect of the present invention is provided on the deck provided on the hull, a continuous wall portion that rises upward from the deck and continuously surrounds the deck, and is provided on the outer edge of the deck, and is moored through which a rope is passed when mooring. It is provided with hardware, and the continuous wall portion has a portion provided inside the deck from the mooring hardware, bypassing the mooring hardware.

この船舶では、甲板の外縁には係留金物が設けられ、連壁部は係留金物を迂回するように係留金物より船体の中心側に設けられる。これにより、連壁部は、甲板上を連続した部材で取り囲むことができるため、船舶の積載物の流出を抑制することができる。係留金物は、連壁部より外側（船側外板側）に設けられていることから、連壁部を上下方向に回避するような台座等の付属部材の高さを低く抑えることができる。以上より、この船舶は、係留金物の重量、及び係留金物を支持する補強部材の重量を低減させ、当該補強部材に係る工数を低減することができる。 In this ship, mooring hardware is provided on the outer edge of the deck, and the continuous wall portion is provided on the center side of the hull from the mooring hardware so as to bypass the mooring hardware. As a result, the continuous wall portion can be surrounded on the deck by continuous members, so that the outflow of the load on the ship can be suppressed. Since the mooring hardware is provided on the outside of the continuous wall portion (on the side of the outer panel on the ship side), the height of the accessory member such as the pedestal that avoids the continuous wall portion in the vertical direction can be suppressed to a low level. From the above, this ship can reduce the weight of the mooring hardware and the weight of the reinforcing member that supports the mooring hardware, and can reduce the man-hours related to the reinforcing member.

一実施形態においては、船舶は、甲板の下方に荷油を貯留する荷油タンクをさらに備え、連壁部は、荷油タンクより外側に設けられる。このような構成によれば、甲板において連壁部が荷油タンクの外側に設けられるため、作業中に荷油タンクから甲板上に荷油が流出した場合であっても、甲板から船側外板又は船外への荷油の流出を抑制することができる。 In one embodiment, the ship is further provided with an oil tank below the deck to store the oil, and the wall is provided outside the oil tank. According to such a configuration, since the continuous wall portion on the deck is provided on the outside of the cargo oil tank, even if the cargo oil flows out from the cargo oil tank onto the deck during work, the ship side outer plate is provided from the deck. Alternatively, the outflow of cargo oil to the outside of the ship can be suppressed.

本発明によれば、係留に必要な部位の重量を低減することができる船舶を提供できる。 According to the present invention, it is possible to provide a ship capable of reducing the weight of a portion required for mooring.

本発明の実施形態に係る船舶を示す概略側面図である。It is a schematic side view which shows the ship which concerns on embodiment of this invention. 図１に示す船舶の概略平面図である。It is a schematic plan view of the ship shown in FIG. 図３（ａ）は、船舶が右舷側で一般係留をしている様子を示す概略図であり、図３（ｂ）は、船舶が一点係留している様子を示す概略図である。FIG. 3A is a schematic view showing how the ship is moored on the starboard side, and FIG. 3B is a schematic view showing how the ship is moored at one point. 本発明の実施形態に係る船舶の船首側を示す平面図であり、右舷側へ一般係留を行うときの様子を示す図である。It is a top view which shows the bow side of the ship which concerns on embodiment of this invention, and is the figure which shows the state when the general mooring is performed to the starboard side. 図５（ａ）は、本発明の実施形態に係る連壁部及び係留金物の一例を示す概略断面図であり、図５（ｂ）は、本発明の実施形態に係る連壁部及び係留金物の一例を示す概略断面図である。FIG. 5 (a) is a schematic cross-sectional view showing an example of the continuous wall portion and the mooring metal according to the embodiment of the present invention, and FIG. 5 (b) is a schematic cross-sectional view showing the continuous wall portion and the mooring metal according to the embodiment of the present invention. It is a schematic cross-sectional view which shows an example. 本発明の実施形態に係る連壁部及び係留金物の一例を示す概略平面図である。It is a schematic plan view which shows an example of the continuous wall part and the mooring metal thing which concerns on embodiment of this invention. 比較例に係る連壁部及び係留金物を示す概略断面図である。It is a schematic cross-sectional view which shows the continuous wall part and the mooring metal thing which concerns on a comparative example.

以下、本発明による船舶の好適な実施形態について図面を参照しながら説明する。図１は、本発明の実施形態に係る船舶を示す概略側面図、図２は、図１に示す船舶の概略平面図である。なお、ここでの船舶１００はタンカーである。 Hereinafter, preferred embodiments of the ship according to the present invention will be described with reference to the drawings. FIG. 1 is a schematic side view showing a ship according to an embodiment of the present invention, and FIG. 2 is a schematic plan view of the ship shown in FIG. The ship 100 here is a tanker.

図１及び図２に示すように、この船舶１００にあっては、船体１９内の船尾側（図１及び図２の左側）に機関室１が設けられ、この機関室１より船首側（図１及び図２の右側）に隔壁４を隔ててポンプ室２が設けられ、このポンプ室２より船首側に隔壁５を隔ててカーゴスペース３が複数設けられる。船体１９内の船首側には船首部１３が設けられ、この船首部１３より船尾側に船首隔壁１４を隔ててカーゴスペース３（荷油タンクの一例）が設けられる。また、船舶１００におけるカーゴスペース３側にはバラスト水を貯留するバラストタンク６が複数設けられる。また、機関室１より船尾側には船尾部１５が設けられる。船尾部１５の下部にはバラストタンク６とは異なるタンク７が設けられる。なお、タンク７は、バラストタンク６と同様にバラスト水を貯留するものであっても良いし、バラスト水と異なる液体（例えば海水を殺菌してバラスト水を生成するための液体）を貯留するものであっても良い。また、タンク７には何も貯留されておらず、空ジョブとなっていても良い。 As shown in FIGS. 1 and 2, in the ship 100, an engine room 1 is provided on the stern side (left side of FIGS. 1 and 2) in the hull 19, and the bow side (FIG. 1) of the engine room 1 is provided. (1 and the right side of FIG. 2) are provided with a pump chamber 2 separated by a partition wall 4, and a plurality of cargo spaces 3 are provided on the bow side of the pump chamber 2 separated by a partition wall 5. A bow portion 13 is provided on the bow side of the hull 19, and a cargo space 3 (an example of a cargo oil tank) is provided on the stern side of the bow portion 13 with a bow partition wall 14 separated from the bow portion 13. Further, a plurality of ballast tanks 6 for storing ballast water are provided on the cargo space 3 side of the ship 100. Further, a stern portion 15 is provided on the stern side of the engine room 1. A tank 7 different from the ballast tank 6 is provided at the lower part of the stern portion 15. The tank 7 may store ballast water in the same manner as the ballast tank 6, or may store a liquid different from the ballast water (for example, a liquid for sterilizing seawater to generate ballast water). It may be. Further, nothing is stored in the tank 7, and the job may be empty.

船体１９の上側には甲板１０が設けられる。機関室１、ポンプ室２、カーゴスペース３、及び船首部１３の天井面は甲板１０で構成され、床面側は、図１及び図２に示すように、船体１９の外殻を形成する船側外板１１と、この船側外板１１の船体１９内側に設けられた内底板１２とによって２重船底構造とされている。甲板１０は、甲板１０と船側外板１１とが互いに接続されている部位の近傍である外縁部１０ａを有する。また、隔壁４は、船幅方向（図２の上下方向）に延びると共に、船側外板１１から甲板１０まで延びるように設けられている。また、隔壁５は、船幅方向に延びると共に、内底板１２から甲板１０まで延びるように設けられている。 A deck 10 is provided on the upper side of the hull 19. The ceiling surface of the engine room 1, the pump room 2, the cargo space 3, and the bow portion 13 is composed of the deck 10, and the floor surface side is the ship side forming the outer shell of the hull 19 as shown in FIGS. 1 and 2. The outer plate 11 and the inner bottom plate 12 provided inside the hull 19 of the ship side outer plate 11 form a double bottom structure. The deck 10 has an outer edge portion 10a in the vicinity of a portion where the deck 10 and the ship-side outer plate 11 are connected to each other. Further, the partition wall 4 is provided so as to extend in the ship width direction (vertical direction in FIG. 2) and extend from the ship side outer plate 11 to the deck 10. Further, the partition wall 5 is provided so as to extend in the ship width direction and extend from the inner bottom plate 12 to the deck 10.

カーゴスペース３には、船舶１００によって運搬される原油、精製油等の荷油が貯留される。カーゴスペース３は、船体内側を、例えば船幅方向に２つに分割すると共に船長方向に７つに分割することで合計１４の区画に分けられている。 Cargo space 3 stores cargo oils such as crude oil and refined oil carried by the ship 100. The cargo space 3 is divided into a total of 14 sections by dividing the inside of the hull into two in the width direction and seven in the captain direction, for example.

ここで、図３を参照して、船舶１００の係留について説明する。図３（ａ）は、船舶１００が右舷側で一般係留をしている様子を示す概略図である。図３（ｂ）は、船舶１００が一点係留している様子を示す概略図である。図３に示すように、船舶１００は、一般係留及び一点係留を行うことができる。一般係留とは、船舶１００の右舷側及び左舷側一方の陸地へロープ（係船索）を引き出し、当該陸地へ係留することである。例えば、図３（ａ）に示すように、船舶１００は、船体１９の船首部１３及び船尾部１５から右舷側へロープ３０を引き出す。そして、引き出されたロープ３０は、陸地ＬＤにて固定される。これにより、船舶１００が右舷側の陸地ＬＤに係留される。なお、船舶１００の左舷側に陸地ＬＤが存在するときは、船舶１００は、左舷側にロープを引き出す。 Here, the mooring of the ship 100 will be described with reference to FIG. FIG. 3A is a schematic view showing a state in which the ship 100 is generally moored on the starboard side. FIG. 3B is a schematic view showing a state in which the ship 100 is moored at one point. As shown in FIG. 3, the ship 100 can perform general mooring and one-point mooring. The general mooring is to pull out a rope (mooring rope) to one of the land on the starboard side and the port side of the ship 100 and moor it to the land. For example, as shown in FIG. 3A, the ship 100 pulls out the rope 30 from the bow portion 13 and the stern portion 15 of the hull 19 toward the starboard side. Then, the pulled out rope 30 is fixed at the land LD. As a result, the ship 100 is moored at the land LD on the starboard side. When the land LD is present on the port side of the ship 100, the ship 100 pulls out the rope to the port side.

一点係留とは、船体１９が船首側の位置にて、海上の構造物ＳＴのチェーン３５に接続されることで、構造物ＳＴに対して一箇所だけで係留されることである。一点係留を行う場合、船体１９の船首部１３からロープを海側へ引き出し、当該ロープで海側のチェーン３５を引っ張り上げる。そして、船首部１３では、引っ張り上げたチェーン３５を固定部に固定させる。これにより、船体１９が海上の構造物ＳＴにチェーン３５を介して係留される。なお、この構造物ＳＴは、ブイである。 The one-point mooring means that the hull 19 is connected to the chain 35 of the structure ST on the sea at the position on the bow side, so that the hull 19 is moored at only one place with respect to the structure ST. When mooring at one point, a rope is pulled out from the bow 13 of the hull 19 to the sea side, and the chain 35 on the sea side is pulled up by the rope. Then, at the bow portion 13, the pulled-up chain 35 is fixed to the fixed portion. As a result, the hull 19 is moored to the structure ST on the sea via the chain 35. The structure ST is a buoy.

次に、図４を参照して、船舶１００の船首側の構造について説明する。図４は、船舶１００の船首側を示す平面図であり、右舷側へ一般係留を行うときの様子を示す図である。左舷側への一般係留及び一点係留における構成の配置などは、ロープの引出態様以外、右舷側への一般係留と共通している。また、船舶１００の船尾側の係留装置に関する構成は、船舶１００の船首側の係留装置に関する構成と同様であるため、本実施形態では、船舶１００の船首側の係留装置に関する構成を例示する。 Next, the structure of the ship 100 on the bow side will be described with reference to FIG. FIG. 4 is a plan view showing the bow side of the ship 100, and is a view showing a state when general mooring is performed on the starboard side. The arrangement of configurations for general mooring on the port side and one-point mooring is common to general mooring on the starboard side, except for the mode of pulling out the rope. Further, since the configuration of the mooring device on the stern side of the ship 100 is the same as the configuration of the mooring device on the bow side of the ship 100, the configuration of the mooring device on the bow side of the ship 100 will be exemplified in this embodiment.

船舶１００は、船首側の甲板１０上に、船首側に配置された第１ドラム２０と、右舷側に配置された第２ドラム４０と、左舷側に配置された第３ドラム６０と、各ドラム４０，６０よりも船尾側に配置された第４ドラム７０と、を備える。船舶１００は、甲板１０上に、甲板１０から上方へ立ち上がり甲板１０を連続して取り囲む連壁部１８をさらに備える。 The ship 100 has a first drum 20 arranged on the bow side, a second drum 40 arranged on the starboard side, a third drum 60 arranged on the port side, and each drum on the deck 10 on the bow side. It includes a fourth drum 70 arranged on the stern side of the 40 and 60. The ship 100 further includes a continuous wall portion 18 on the deck 10 that rises upward from the deck 10 and continuously surrounds the deck 10.

第１ドラム２０は、甲板１０の船首側の領域において、船首側へロープ８１を延ばすことが可能なドラムである。第１ドラム２０は、船長方向に延在する船舶１００の中心線ＣＬ付近の位置に配置される。第１ドラム２０に対して船首側で対向する位置には、一点係留用のチェーン３５（図３参照）を固定する固定部２７が設けられる。また、甲板１０の外縁部１０ａには、第１ドラム２０及び固定部２７に対して船首側で対向する位置に、係留金物２８が設けられる。係留金物２８は、ロープ８１及びチェーン３５を引き出す又は引き抜く部分である。係留金物２８は、第１ドラム２０から延ばすロープ８１の本数又は回転部の数に応じて配置される。なお、係留金物は、ロープを引き出す又は引き抜く部分であり、ドラムから延ばされるロープの本数又は回転部の数に応じて配置される点は、他の箇所の係留金物についても同様である。 The first drum 20 is a drum capable of extending the rope 81 toward the bow side in the area on the bow side of the deck 10. The first drum 20 is arranged at a position near the center line CL of the ship 100 extending in the captain direction. A fixing portion 27 for fixing the chain 35 for one-point mooring (see FIG. 3) is provided at a position facing the first drum 20 on the bow side. Further, on the outer edge portion 10a of the deck 10, a mooring metal fitting 28 is provided at a position facing the first drum 20 and the fixing portion 27 on the bow side. The mooring hardware 28 is a portion for pulling out or pulling out the rope 81 and the chain 35. The mooring hardware 28 is arranged according to the number of ropes 81 extending from the first drum 20 or the number of rotating portions. The mooring hardware is a portion for pulling out or pulling out the rope, and is arranged according to the number of ropes extended from the drum or the number of rotating portions, and the same applies to the mooring hardware at other locations.

第２ドラム４０は、右舷側で係留するときに、右舷側へロープ８２を延ばすことが可能なドラムである。第２ドラム４０は、甲板１０の船首側の領域において、第１ドラム２０よりも船尾側であって右舷側に配置されている。甲板１０の右舷側の外縁部１０ａには、第２ドラム４０に対して、ロープ８２の引出方向に対向する位置に、係留金物４８が設けられる。 The second drum 40 is a drum capable of extending the rope 82 to the starboard side when moored on the starboard side. The second drum 40 is arranged on the stern side and starboard side of the first drum 20 in the area on the bow side of the deck 10. A mooring hardware 48 is provided on the starboard side outer edge portion 10a of the deck 10 at a position facing the second drum 40 in the pulling direction of the rope 82.

第３ドラム６０は、左舷側で係留するときに、左舷側へロープ８３を延ばすことが可能なドラムである。第３ドラム６０は、甲板１０の船首側の領域において、第１ドラム２０よりも船尾側であって左舷側に配置されている。甲板１０の左舷側の外縁部１０ａには、第３ドラム６０に対して、ロープ８３の引出方向に対向する位置に、係留金物６８が設けられる。 The third drum 60 is a drum capable of extending the rope 83 toward the port side when moored on the port side. The third drum 60 is arranged on the stern side and port side of the first drum 20 in the area on the bow side of the deck 10. A mooring metal fitting 68 is provided on the port side outer edge portion 10a of the deck 10 at a position facing the third drum 60 in the pulling direction of the rope 83.

第４ドラム７０は、一般係留のときに、右舷側又は左舷側へロープ８４を延ばすことが可能なドラムである。第４ドラム７０は、甲板１０の船首側の領域において、第２ドラム４０及び第３ドラム６０よりも船尾側であって左舷側に配置されている。甲板１０の左舷側の外縁部１０ａには、第４ドラム７０に対して、ロープ８４の引出方向に対向する位置に、係留金物７８が設けられる。第４ドラム７０は、右舷側で係留するときは、右舷側へロープ８４を延ばすことが可能である。甲板１０の右舷側の外縁部１０ａには、第４ドラム７０に対して、ロープ８４の引出方向に対向する位置に、係留金物７９が設けられる。 The fourth drum 70 is a drum capable of extending the rope 84 to the starboard side or the port side at the time of general mooring. The fourth drum 70 is arranged on the stern side and port side of the second drum 40 and the third drum 60 in the area on the bow side of the deck 10. A mooring hardware 78 is provided on the port side outer edge portion 10a of the deck 10 at a position facing the fourth drum 70 in the pulling direction of the rope 84. When the fourth drum 70 is moored on the starboard side, the rope 84 can be extended to the starboard side. A mooring hardware 79 is provided on the outer edge portion 10a on the starboard side of the deck 10 at a position facing the fourth drum 70 in the drawing direction of the rope 84.

係留金物２８，４８，６８，７８，７９は、後述するが、例えばそれぞれ同一の形状を有する。以下、係留金物２８，４８，６８，７８，７９は、それぞれ係留金物９０として一括して表現する。また、ロープ８１，８２，８３，８４は、それぞれロープ８０として一括して表現し、係留金物９０はロープ８０を引き出す又は引き抜く部分であるとする。 The mooring hardware 28, 48, 68, 78, 79 have the same shape, for example, as described later. Hereinafter, the mooring hardware 28, 48, 68, 78, 79 are collectively referred to as the mooring hardware 90, respectively. Further, the ropes 81, 82, 83, and 84 are collectively represented as the rope 80, and the mooring hardware 90 is a portion for pulling out or pulling out the rope 80.

図４に示す通り、連壁部１８は、例えば、シャーストレーキである。連壁部１８は、甲板１０から連続して上方に延びた板状の部材であり、船舶１００の積載物（荷油）の流出を抑制する。連壁部１８は、例えば、高さ２７０ｍｍ、厚み１６ｍｍの湾曲した長尺状の部材である。連壁部１８は、甲板１０を連続して取り囲む。連壁部１８は、例えば、連続した一条の部材（１つの部材）で構成されており、上面視において環状を呈する。連壁部１８は、複数の部材によって構成され、水平方向において複数の部材間が接続されることで上面視において環状を呈する連続した部位となっていてもよい。このとき、複数の部材間は、荷油が流通可能な隙間が形成されないように接続される。連壁部１８を構成する１又は複数の部材は、荷油が流通可能なように水平方向に連通した穴を有さない板状又は直方体状を呈する。 As shown in FIG. 4, the continuous wall portion 18 is, for example, a shear strake. The continuous wall portion 18 is a plate-shaped member that extends continuously upward from the deck 10 and suppresses the outflow of the load (load oil) of the ship 100. The continuous wall portion 18 is, for example, a curved long member having a height of 270 mm and a thickness of 16 mm. The continuous wall portion 18 continuously surrounds the deck 10. The continuous wall portion 18 is composed of, for example, a continuous single-row member (one member), and exhibits an annular shape in a top view. The continuous wall portion 18 may be formed of a plurality of members, and may be a continuous portion that exhibits an annular shape in a top view by connecting the plurality of members in the horizontal direction. At this time, the plurality of members are connected so as not to form a gap through which the cargo oil can flow. One or a plurality of members constituting the continuous wall portion 18 have a plate shape or a rectangular parallelepiped shape having no holes communicating in the horizontal direction so that the cargo oil can flow.

連壁部１８は、船側外板１１に沿って設けられた係留金物（船首側における係留金物９０）を迂回して係留金物（船首側における係留金物９０）より甲板１０の内側に設けられる。ここでの内側とは、船側外板１１より隔壁４側、内底板１２側、及び船首隔壁１４側である。以下、甲板１０上における外側（外舷方向、及び船側外板１１側）と内側（隔壁４側、内底板１２側、及び船首隔壁１４側）との方向を内外方向と記載し、甲板１０上における船側外板１１に沿った方向を外板方向と記載する。また、以下、一例として、船首側の甲板１０上における連壁部１８の構成について説明する。 The continuous wall portion 18 is provided inside the deck 10 from the mooring hardware (mooring hardware 90 on the bow side) bypassing the mooring hardware (mooring hardware 90 on the bow side) provided along the ship side outer plate 11. Here, the inside means the bulkhead 4 side, the inner bottom plate 12 side, and the bow bulkhead 14 side from the ship side outer plate 11. Hereinafter, the directions of the outside (outer side direction and the ship side outer plate 11 side) and the inside (partition 4 side, inner bottom plate 12 side, and bow partition 14 side) on the deck 10 are described as the inner and outer directions, and are described as the inner and outer directions on the deck 10. The direction along the ship side outer plate 11 is referred to as the outer plate direction. Further, as an example, the configuration of the continuous wall portion 18 on the deck 10 on the bow side will be described below.

連壁部１８は、船側外板１１上に設けられる第１連壁部位１８ａと、第１連壁部位１８ａと連続しており船側外板１１から内側に向かって延在する第２連壁部位１８ｂと、１対の第２連壁部位１８ｂと連続して外板方向に延在する第３連壁部位１８ｃと、を有する。すなわち、連壁部１８は、係留金物９０の台座９１を迂回して係留金物９０より甲板１０の内側に設けられる第２連壁部位１８ｂ及び第３連壁部位１８ｃを有する。また、連壁部１８の各部位１８ａ，１８ｂ，１８ｃは、甲板１０上において内底板１２より外側に設けられる。すなわち、連壁部１８は、カーゴスペース３より外側に設けられる。なお、各部位１８ａ，１８ｂ，１８ｃの更に詳細な構成については、係留金物９０との位置関係と共に後述する。 The continuous wall portion 18 is continuous with the first continuous wall portion 18a provided on the ship side outer plate 11 and the first continuous wall portion 18a, and extends inward from the ship side outer plate 11 to the second continuous wall portion. It has a pair of second wall portions 18b and a third continuous wall portion 18c extending continuously in the outer plate direction. That is, the continuous wall portion 18 has a second continuous wall portion 18b and a third continuous wall portion 18c provided inside the deck 10 from the mooring hardware 90 by bypassing the pedestal 91 of the mooring hardware 90. Further, each portion 18a, 18b, 18c of the continuous wall portion 18 is provided on the deck 10 outside the inner bottom plate 12. That is, the continuous wall portion 18 is provided outside the cargo space 3. A more detailed configuration of each part 18a, 18b, 18c will be described later together with the positional relationship with the mooring hardware 90.

次に、図５を参照して、船側外板１１、連壁部１８及び係留金物９０の位置関係及び構成を説明する。図５の（ａ）及び（ｂ）は、本発明の実施形態に係る連壁部及び係留金物の一例を示す概略断面図である。係留金物９０は、台座９１及びチョック９２を有する。係留金物９０は、例えば、甲板１０の下部に設けられる後述の補強部材（不図示）により支持される。 Next, with reference to FIG. 5, the positional relationship and configuration of the ship-side outer plate 11, the continuous wall portion 18, and the mooring hardware 90 will be described. (A) and (b) of FIG. 5 are schematic cross-sectional views showing an example of a continuous wall portion and a mooring hardware according to an embodiment of the present invention. The mooring hardware 90 has a pedestal 91 and a chock 92. The mooring hardware 90 is supported, for example, by a reinforcing member (not shown) provided below the deck 10.

台座９１は、チョック９２を下方から支持し、チョック９２を甲板１０上に固定する。台座９１は、底部９１ａ及び上部９１ｂを有する。台座９１の底部９１ａは、甲板１０上の外縁部１０ａに設けられる。甲板１０に接続している台座９１の底部９１ａは、鋼船規則に基づき、船側外板１１より所定の距離ｄ１だけ内側に設けられる。所定の距離ｄ１は、例えば、５０ｍｍ以上１００ｍｍ以下である。 The pedestal 91 supports the chock 92 from below and fixes the chock 92 on the deck 10. The pedestal 91 has a bottom 91a and a top 91b. The bottom portion 91a of the pedestal 91 is provided on the outer edge portion 10a on the deck 10. Bottom 91a of the seat 91 that is connected to the deck 10, based on Steel Ships rule, provided on the inner side of the side shell plate 11 by a predetermined distance d 1. The predetermined distance d 1 is, for example, 50 mm or more and 100 mm or less.

台座９１の上部９１ｂは、チョック９２と接続する。台座９１の上部９１ｂは、台座９１の底部９１ａに比べて外側に設けられる。例えば、図５の（ａ）に示す通り、台座９１は、底部９１ａから上部９１ｂに向かう方向において、底部９１ａと上部９１ｂとの間の部位から外側に向かって屈曲している。例えば、図５の（ｂ）に示す通り、台座９１は、底部９１ａから上部９１ｂに向かって外側に傾斜していてもよい。これにより、例えば、台座９１の上部９１ｂの外側の部位は、上下方向において船側外板１１に対して直上に設けられる。台座９１の一部又は全部が底部９１ａから上部９１ｂに向かって突出、屈曲、湾曲、又は拡大していてもよい。台座９１の高さは、チョック９２に掛かる荷重等に基づいて適宜設定される。台座９１の高さは、例えば、２００ｍｍ以上２７０ｍｍ以下である。台座９１の高さは、例えば２３５ｍｍである。台座９１の上部９１ｂの外板方向の幅は、チョック９２の底面の外板方向の幅以上の長さである。 The upper portion 91b of the pedestal 91 is connected to the chock 92. The upper portion 91b of the pedestal 91 is provided outside the bottom portion 91a of the pedestal 91. For example, as shown in FIG. 5A, the pedestal 91 bends outward from a portion between the bottom 91a and the top 91b in the direction from the bottom 91a to the top 91b. For example, as shown in FIG. 5B, the pedestal 91 may be inclined outward from the bottom 91a toward the top 91b. As a result, for example, the outer portion of the upper portion 91b of the pedestal 91 is provided directly above the ship-side outer plate 11 in the vertical direction. Part or all of the pedestal 91 may project, bend, bend, or expand from the bottom 91a to the top 91b. The height of the pedestal 91 is appropriately set based on the load applied to the chock 92 and the like. The height of the pedestal 91 is, for example, 200 mm or more and 270 mm or less. The height of the pedestal 91 is, for example, 235 mm. The width of the upper portion 91b of the pedestal 91 in the outer plate direction is longer than the width of the bottom surface of the chock 92 in the outer plate direction.

チョック９２は、ロープ８０を引き出す又は引き抜く部分である。チョック９２は、例えば、パナマチョックである。チョック９２は、オープンチョックであってもよいし、クローズドチョックであってもよい。チョック９２は、台座９１の上部９１ｂ上に設けられる。台座９１の上部９１ｂが船側外板１１の直上に設けられているとき、チョック９２は船側外板１１の直上に位置するように上部９１ｂ上に設けられる。台座９１の上部９１ｂ及びチョック９２は、船側外板１１の直上又は内側に位置する。 The chock 92 is a portion for pulling out or pulling out the rope 80. The chock 92 is, for example, a Panama chock. The chock 92 may be an open chock or a closed chock. The chock 92 is provided on the upper portion 91b of the pedestal 91. When the upper portion 91b of the pedestal 91 is provided directly above the ship-side outer plate 11, the chock 92 is provided on the upper portion 91b so as to be located directly above the ship-side outer plate 11. The upper portion 91b and the chock 92 of the pedestal 91 are located directly above or inside the ship side outer plate 11.

次に、図６を参照して連壁部１８の構造について、係留金物９０との位置関係と共に更に詳細に説明する。 Next, the structure of the continuous wall portion 18 will be described in more detail with reference to FIG. 6, together with the positional relationship with the mooring hardware 90.

第１連壁部位１８ａは、甲板１０の外縁部１０ａに設けられ、係留金物９０の台座９１が設けられている位置から外側の領域以外の甲板１０上の位置に設けられる。すなわち、第１連壁部位１８ａは、係留金物９０の台座９１の上部９１ｂの直下の領域を除き、船側外板１１に沿って外板方向に延在する。例えば、第１連壁部位１８ａは、船側外板１１上に設けられ、第１連壁部位１８ａの外側の面は、上下方向において船側外板１１の外側の面と連続している（図７に示す連壁部１８０と同趣旨の構成となる）。 The first continuous wall portion 18a is provided on the outer edge portion 10a of the deck 10, and is provided at a position on the deck 10 other than the outer region from the position where the pedestal 91 of the mooring hardware 90 is provided. That is, the first continuous wall portion 18a extends in the outer plate direction along the ship side outer plate 11 except for the region directly below the upper portion 91b of the pedestal 91 of the mooring hardware 90. For example, the first continuous wall portion 18a is provided on the ship side outer plate 11, and the outer surface of the first continuous wall portion 18a is continuous with the outer surface of the ship side outer plate 11 in the vertical direction (FIG. 7). It has the same structure as the continuous wall portion 180 shown in (1).

第２連壁部位１８ｂは、係留金物９０の台座９１から外板方向に離間して設けられ、第１連壁部位１８ａから連続して内側に延在する。すなわち、連壁部１８は、台座９１の位置で甲板１０上において内側に屈曲又は湾曲することにより、係留金物９０を迂回する。第２連壁部位１８ｂは、台座９１の外板方向の両端部から所定の距離以上離間した位置において、第１連壁部位１８ａから内側に向かって、台座９１の外板方向の両端部に沿うように延在する。第２連壁部位１８ｂは、少なくとも台座９１の底部９１ａの内側の端部より所定の距離ｄ２（距離ｄ２の大きさについては後述）だけ内側に向かって延在する。すなわち、第２連壁部位１８ｂの内外方向の長さは、船側外板１１から台座９１の底部９１ａの内側の端部までの長さより長い。 The second continuous wall portion 18b is provided apart from the pedestal 91 of the mooring hardware 90 in the outer plate direction, and extends continuously inward from the first continuous wall portion 18a. That is, the continuous wall portion 18 bypasses the mooring hardware 90 by bending or bending inward on the deck 10 at the position of the pedestal 91. The second continuous wall portion 18b is located along both ends of the pedestal 91 in the outer plate direction inward from the first continuous wall portion 18a at a position separated from both ends of the pedestal 91 in the outer plate direction by a predetermined distance or more. Prolonged like. The second continuous wall portion 18b extends inward by at least a predetermined distance d 2 (the size of the distance d 2 will be described later) from the inner end of the bottom portion 91a of the pedestal 91. That is, the length of the second continuous wall portion 18b in the inward-outward direction is longer than the length from the ship-side outer plate 11 to the inner end of the bottom portion 91a of the pedestal 91.

甲板１０上の外縁部１０ａにおいて、１又は複数の係留金物９０は、１対の第２連壁部位１８ｂとの間に設けられる。すなわち、第２連壁部位１８ｂは、１つの係留金物９０に対して１対設けられてもよい。第２連壁部位１８ｂは、複数の係留金物９０のうち外板方向の両端に位置する係留金物９０の端部に沿って１対設けられてもよい。例えば、複数の係留金物９０が隣接して配置されている場合、第２連壁部位１８ｂは、他の係留金物９０が隣接して配置されていない方の係留金物９０の端部に沿って設けられる。 At the outer edge 10a on the deck 10, one or more mooring hardware 90s are provided between a pair of second wall portions 18b. That is, a pair of second wall portions 18b may be provided for one mooring metal 90. A pair of second wall portions 18b may be provided along the ends of the mooring hardware 90 located at both ends in the outer plate direction among the plurality of mooring hardware 90. For example, when a plurality of mooring hardware 90s are arranged adjacent to each other, the second continuous wall portion 18b is provided along the end of the mooring metal fitting 90 on which the other mooring hardware 90 is not arranged adjacent to each other. Be done.

第３連壁部位１８ｃは、甲板１０上の係留金物９０の台座９１の底部９１ａより内側の位置において、第２連壁部位１８ｂの内側の端部と連続して外板方向に延在する。第３連壁部位１８ｃは、１又は複数の係留金物９０の外板方向の端部に沿って内外方向に延在する１対の第２連壁部位１８ｂの内側の端部を結ぶように外板方向に延在する。図５の（ａ）及び（ｂ）に示す通り、第３連壁部位１８ｃは、設置時の作業性を踏まえて、係留金物９０の内側の端部から所定の距離ｄ２だけ内側に離れた位置に設けられる。すなわち、係留金物９０は、第３連壁部位１８ｃの外側に設けられる。 The third continuous wall portion 18c extends in the outer plate direction continuously with the inner end portion of the second continuous wall portion 18b at a position inside the bottom portion 91a of the pedestal 91 of the mooring hardware 90 on the deck 10. The third wall portion 18c is outside so as to connect the inner ends of a pair of second wall portions 18b extending inward and outward along the outer plate direction ends of one or more mooring hardware 90. It extends in the direction of the board. As shown in (a) and (b) of FIG. 5, the third Renkabe site 18c is in light of the workability at the time of installation, spaced inwardly by a distance d 2 inside from the end portion of the predetermined anchoring hardware 90 It is provided at the position. That is, the mooring hardware 90 is provided outside the third wall portion 18c.

ここで、台座９１の底部９１ａの外側の部位は、設置又はメンテナンスの作業時に外側から障害物なしにアプローチできるため、鋼船規則に基づく距離（ここではｄ１）だけ船側外板１１から離間していればよい。これに対し、台座９１の底部９１ａの内側の部位は、第３連壁部位１８ｃが設けられた後、台座９１の底部９１ａの設置又はメンテナンスの作業時に内側からアプローチできるように所定の距離（ここではｄ２）だけ離間している必要がある。このため、距離ｄ２は、距離ｄ１より大きく取る必要がある。距離ｄ２は、例えば、１５０ｍｍである。 Here, since the outer portion of the bottom 91a of the pedestal 91 can be approached from the outside without obstacles during installation or maintenance work, it is separated from the ship side outer plate 11 by a distance (here, d 1) based on the steel ship regulations. I just need to be there. On the other hand, the portion inside the bottom portion 91a of the pedestal 91 has a predetermined distance (here) so that the portion inside the bottom portion 91a of the pedestal 91 can be approached from the inside during installation or maintenance work of the bottom portion 91a of the pedestal 91 after the third continuous wall portion 18c is provided. Then, it is necessary to be separated by d 2). Therefore, the distance d 2 needs to be larger than the distance d 1. The distance d 2 is, for example, 150 mm.

次に、本実施形態に係る船舶１００の作用・効果について説明する。 Next, the action / effect of the ship 100 according to the present embodiment will be described.

まず、図７を参照して、比較例に係る船舶２００について説明する。比較例に係る船舶２００は、船側外板１１０上に設けられた連壁部１８０と、連壁部１８０を上下方向に回避するように甲板２１０上に設けられた係留金物９００と、を備える。甲板２１０は、甲板２１０と船側外板１１０とが互いに接続されている部位の近傍である外縁部２１０ａを有する。連壁部１８０及び係留金物９００は、例えば、甲板２１０の外縁部２１０ａに設けられる。 First, the ship 200 according to the comparative example will be described with reference to FIG. 7. The ship 200 according to the comparative example includes a continuous wall portion 180 provided on the ship side outer plate 110 and a mooring hardware 900 provided on the deck 210 so as to avoid the continuous wall portion 180 in the vertical direction. The deck 210 has an outer edge portion 210a in the vicinity of a portion where the deck 210 and the ship-side outer plate 110 are connected to each other. The continuous wall portion 180 and the mooring hardware 900 are provided, for example, on the outer edge portion 210a of the deck 210.

比較例に係る船舶２００の連壁部１８０は、船側外板１１０から連続して甲板２１０より上方に延び、甲板２１０を取り囲む一条の部材である。係留金物９００は、台座９１０と、チョック９２０とを有する。台座９１０は、甲板２１０上に設けられる底部９１０ａ、及びチョック９２０が設けられる上部９１０ｂを有する。台座９１０の底部９１０ａは、連壁部１８０が船側外板１１０から連続して上方に延在していることから、設置又はメンテナンス時の作業性を踏まえて、連壁部１８０から所定の距離ｄ３だけ内側に離間して配置される。距離ｄ３は、例えば、距離ｄ２と同値である。 The continuous wall portion 180 of the ship 200 according to the comparative example is a single member that extends continuously above the deck 210 from the ship side outer plate 110 and surrounds the deck 210. The mooring hardware 900 has a pedestal 910 and a chock 920. The pedestal 910 has a bottom portion 910a provided on the deck 210 and an upper portion 910b provided with a chock 920. Since the continuous wall portion 180 extends upward continuously from the ship side outer plate 110, the bottom portion 910a of the pedestal 910 has a predetermined distance d from the continuous wall portion 180 in consideration of workability during installation or maintenance. Only 3 are arranged inwardly separated from each other. The distance d 3 is, for example, the same value as the distance d 2.

チョック９２０を船側外板１１０の直上に設けるため、チョック９２０が設けられる台座９１０の上部９１０ｂは、船側外板１１０及び連壁部１８０の直上に設けられる必要がある。このため、台座９１０は、例えば、図７に示す通り、底部９１０ａから上部９１０ｂに向かう方向において、底部９１０ａと上部９１０ｂとの間の部位から外側に向かって屈曲している。これにより、例えば、台座９１０の上部９１０ｂの外側の部位及びチョック９２０は、上下方向において船側外板１１０及び連壁部１８０に対して直上に設けられる。台座９１０が上記のような形状を有することで、係留金物９００は、連壁部１８０を上下方向に回避することができる。なお、台座９１０のうち上方及び外側に向かって屈曲している部位と連壁部１８０との最短距離は、台座９１０の設置又はメンテナンス時の作業性を踏まえて、連壁部１８０から所定の距離ｄ４だけ内側に離間して配置される。距離ｄ４は、例えば３００ｍｍである。 Since the chock 920 is provided directly above the ship side outer plate 110, the upper portion 910b of the pedestal 910 on which the chock 920 is provided needs to be provided directly above the ship side outer plate 110 and the continuous wall portion 180. Therefore, for example, as shown in FIG. 7, the pedestal 910 is bent outward from the portion between the bottom portion 910a and the upper portion 910b in the direction from the bottom portion 910a to the upper portion 910b. As a result, for example, the outer portion of the upper portion 910b of the pedestal 910 and the chock 920 are provided directly above the ship side outer plate 110 and the continuous wall portion 180 in the vertical direction. Since the pedestal 910 has the above-mentioned shape, the mooring hardware 900 can avoid the continuous wall portion 180 in the vertical direction. The shortest distance between the pedestal 910 that is bent upward and outward and the continuous wall portion 180 is a predetermined distance from the continuous wall portion 180 in consideration of workability during installation or maintenance of the pedestal 910. only d 4 are spaced inwardly. The distance d 4 is, for example, 300 mm.

ここで、比較例と実施形態との構成の違いを説明する。甲板２１０上において、比較例に係る台座９１０の底部９１０ａは船側外板１１０から離間している距離ｄ３だけ離間しているのに対し、甲板１０上において実施形態に係る台座９１の底部９１ａは船側外板１１から距離ｄ１だけ離間している。このとき、距離ｄ３は、距離ｄ１より大きい。このため、比較例に係る台座９１０が船側外板１１０の直上まで上部９１０ｂを延在させるために必要な長さが、実施形態に係る台座９１が船側外板１１の直上まで上部９１ｂを延在させるために必要な長さに比べて、大きい。すなわち、台座９１は、台座９１０より小さくてもよく、台座９１の重量を台座９１０の重量より減少させることができる。 Here, the difference in configuration between the comparative example and the embodiment will be described. On deck 210, whereas the bottom 910a of the base 910 of the comparative example are separated by a distance d 3 that is spaced apart from the side shell 110, a bottom portion 91a of the seat 91 according to the embodiment on the deck 10 from side shell 11 by a distance d 1 are spaced apart. At this time, the distance d 3 is larger than the distance d 1. Therefore, the length required for the pedestal 910 according to the comparative example to extend the upper portion 910b directly above the ship side outer plate 110 is such that the pedestal 91 according to the embodiment extends the upper portion 91b directly above the ship side outer plate 11. It is large compared to the length required to make it. That is, the pedestal 91 may be smaller than the pedestal 910, and the weight of the pedestal 91 can be reduced from the weight of the pedestal 910.

また、比較例に係る台座９１０は、船側外板１１０の直上において連壁部１８０を上下方向に回避する必要があるため、台座９１０のうち上方及び外側に向かって屈曲している部位と連壁部１８０との間の距離をｄ４だけ離間させる必要がある。これに対し、実施形態に係る台座９１は、船側外板１１の直上において上下方向に回避すべき部材がないため、台座９１の構造の自由度が増大する。 Further, since the pedestal 910 according to the comparative example needs to avoid the continuous wall portion 180 in the vertical direction directly above the ship side outer plate 110, the portion of the pedestal 910 that is bent upward and outward and the continuous wall. the distance between the parts 180 needs to be spaced by d 4. On the other hand, in the pedestal 91 according to the embodiment, since there is no member to be avoided in the vertical direction directly above the ship side outer plate 11, the degree of freedom in the structure of the pedestal 91 is increased.

実施形態に係る台座９１は、上方及び外側に向かって屈曲している部位と連壁部１８との間の距離に制約がないのに対し、比較例に係る台座９１０のうち上方及び外側に向かって屈曲している部位と連壁部１８０との間の距離をｄ４だけ離間させる必要があるため、台座９１の高さｄ５は台座９１０の高さｄ６に比べて小さくなる。台座９１の高さｄ５は、例えば、４７０ｍｍであり、台座９１０の高さｄ６は、例えば、２５０ｍｍである。 The pedestal 91 according to the embodiment has no restriction on the distance between the portion bent upward and outward and the continuous wall portion 18, whereas the pedestal 91 according to the comparative example faces upward and outward. Since it is necessary to separate the bent portion and the continuous wall portion 180 by d 4 , the height d 5 of the pedestal 91 is smaller than the height d 6 of the pedestal 910. The height d 5 of the pedestal 91 is, for example, 470 mm, and the height d 6 of the pedestal 910 is, for example, 250 mm.

ここで、船舶１００，２００を係留する場合には、チョック９２，９２０に対して、それぞれロープを介して船舶１００，２００の荷重が掛かる。船舶１００，２００の重量が同一であった場合、台座９１の高さが台座９１０の高さに比べて低いため、係留金物９０に掛かるモーメントは、係留金物９００に掛かるモーメントに比べて小さい。このため、台座９１は、台座９１０に比べてモーメントに対して強い構造としなくてもよい。台座９１は、例えば、台座９１０に比べて体積及び重量の少なくとも一方を小さくしてもよい。このため、船舶１００は、例えば、台座９１に対する補強部材の重量を、船舶２００の台座９１０に対する補強部材の重量に比べて低減させることができる。ここで、補強部材とは、係留金物を支持する部材である。補強部材は、例えば、係留金物９０及び係留金物９００のそれぞれの下部に位置し、係留金物９０及び係留金物９００のそれぞれを支持する。補強部材は、係留金物９０及び係留金物９００に対する補強機能を有する。これらにより、船舶１００の係留金物９０は、船舶２００の係留金物９００に比べて、係留に必要な部材（係留金物９０及び補強部材）の重量を低減させることができ、補強及びメンテナンスに係る工数が減少させることができる。 Here, when the vessels 100 and 200 are moored, the loads of the vessels 100 and 200 are applied to the chocks 92 and 920 via ropes, respectively. When the weights of the ships 100 and 200 are the same, the height of the pedestal 91 is lower than the height of the pedestal 910, so that the moment applied to the mooring hardware 90 is smaller than the moment applied to the mooring hardware 900. Therefore, the pedestal 91 does not have to have a structure that is stronger against the moment than the pedestal 910. The pedestal 91 may be smaller in volume and weight than the pedestal 910, for example. Therefore, for example, the ship 100 can reduce the weight of the reinforcing member with respect to the pedestal 91 as compared with the weight of the reinforcing member with respect to the pedestal 910 of the ship 200. Here, the reinforcing member is a member that supports the mooring hardware. The reinforcing member is located, for example, below each of the mooring hardware 90 and the mooring hardware 900, and supports each of the mooring hardware 90 and the mooring hardware 900. The reinforcing member has a reinforcing function for the mooring hardware 90 and the mooring hardware 900. As a result, the mooring hardware 90 of the ship 100 can reduce the weight of the members (mooring hardware 90 and the reinforcing member) required for mooring as compared with the mooring hardware 900 of the ship 200, and the man-hours related to reinforcement and maintenance can be reduced. Can be reduced.

一方で、船舶１００の連壁部１８において第１連壁部位１８ａ及び第３連壁部位１８ｃが船舶２００の連壁部１８０に相当する長さを有するとすると、船舶１００は、船舶２００に比べて、第２連壁部位１８ｂが設置される分だけ重量が増大する。第２連壁部位１８ｂは、多くても１つの係留金物９０に対し１対設けられる。なお、台座９１，９１０及び連壁部１８，１８０は、例えば、同一の素材で形成可能である。台座９１，９１０及び連壁部１８，１８０は、例えば、鉄鋼で形成されている。したがって、船舶１００において第２連壁部位１８ｂを設置することによって増加する重量の総和は、各台座９１０から各台座９１に変更することで低減させることができる重量の総和に対して、小さい。したがって、船舶１００は、船舶２００に比べて、全体の重量を低減させることができる。さらに、第２連壁部位１８ｂを設置することによって増加するコストは、上記の台座９１０に対して台座９１から低減させることができたコストに対して、小さい。したがって、船舶１００は、船舶２００に比べて、全体のコストを低減させることができる。 On the other hand, assuming that the first continuous wall portion 18a and the third continuous wall portion 18c have a length corresponding to the continuous wall portion 180 of the ship 200 in the continuous wall portion 18 of the ship 100, the ship 100 is compared with the ship 200. Therefore, the weight is increased by the amount that the second wall portion 18b is installed. A pair of second wall portions 18b is provided for at most one mooring hardware 90. The pedestals 91, 910 and the continuous wall portions 18, 180 can be formed of, for example, the same material. The pedestals 91, 910 and the continuous wall portions 18, 180 are made of, for example, steel. Therefore, the total weight increased by installing the second wall portion 18b on the ship 100 is smaller than the total weight that can be reduced by changing from each pedestal 910 to each pedestal 91. Therefore, the ship 100 can reduce the overall weight as compared with the ship 200. Further, the cost increased by installing the second wall portion 18b is smaller than the cost that can be reduced from the pedestal 91 with respect to the pedestal 910. Therefore, the ship 100 can reduce the overall cost as compared with the ship 200.

以上のように、本実施形態の船舶１００では、係留金物の重量、及び係留金物を支持する補強部材の重量を低減させ、当該補強部材に係る工数を低減することができる。また、連壁部１８は、甲板１０上を一条の部材で取り囲むことができるため、船舶１００の積載物（荷油）の流出を抑制することができる。係留金物９０は、連壁部１８より外側（船側外板側）に設けられていることから、連壁部１８を上下方向に回避するような台座９１等の付属部材の高さを比較例の船舶２００における台座９１０の高さに比べて低く抑えることができる。よって、係留金物９０の重量が比較例の係留金物９００の重量に比べて低減するため、船舶１００は、係留金物９０の補強部材の要求寸法を比較例の係留金物９００の補強部材の要求寸法に比べて小さくすることができる。これにより、船舶１００は船舶２００に比べて、補強部材の重量が低減する。船舶１００において、補強部材の重量が低減することにより、補強部材に係る設計工数及び設置工数等が低減し、補強部材の施工性が向上する。 As described above, in the ship 100 of the present embodiment, the weight of the mooring hardware and the weight of the reinforcing member supporting the mooring hardware can be reduced, and the man-hours related to the reinforcing member can be reduced. Further, since the continuous wall portion 18 can surround the deck 10 with a single member, it is possible to suppress the outflow of the load (load oil) of the ship 100. Since the mooring hardware 90 is provided outside the continuous wall portion 18 (on the ship side outer plate side), the height of an accessory member such as a pedestal 91 that avoids the continuous wall portion 18 in the vertical direction is a comparative example. It can be kept low compared to the height of the pedestal 910 in the ship 200. Therefore, since the weight of the mooring hardware 90 is reduced as compared with the weight of the mooring hardware 900 of the comparative example, the ship 100 sets the required dimension of the reinforcing member of the mooring hardware 90 to the required dimension of the reinforcing member of the mooring hardware 900 of the comparative example. It can be made smaller than that. As a result, the weight of the reinforcing member of the ship 100 is reduced as compared with that of the ship 200. By reducing the weight of the reinforcing member in the ship 100, the design man-hours and the installation man-hours related to the reinforcing member are reduced, and the workability of the reinforcing member is improved.

また、甲板１０において連壁部１８がカーゴスペース３の外側に設けられるため、作業中にカーゴスペース３から甲板１０上に荷油が流出した場合であっても、甲板１０から船側外板１１又は船外への荷油の流出を抑制することができる。 Further, since the continuous wall portion 18 is provided on the outside of the cargo space 3 on the deck 10, even if the cargo oil flows out from the cargo space 3 onto the deck 10 during the work, the ship side outer plate 11 or the ship side outer plate 11 or the ship side outer plate 11 or even if the cargo oil flows out from the deck 10. The outflow of cargo oil to the outboard can be suppressed.

本発明は、上述の実施形態に限定されるものではない。 The present invention is not limited to the above-described embodiment.

例えば、各ドラム２０，４０，６０，７０及び係留金物９０等、周辺の構造物の配置は特に限定されるものではなく、適宜変更してもよい。また、ドラムは必ずしもドラム２０，４０，６０，７０だけに限定されるものではなく、過剰にスペースをとらない限り、別のドラムを追加してもよい。 For example, the arrangement of surrounding structures such as the drums 20, 40, 60, 70 and the mooring hardware 90 is not particularly limited and may be changed as appropriate. Further, the drums are not necessarily limited to the drums 20, 40, 60, 70, and another drum may be added as long as it does not take up excessive space.

また、上記実施形態においては、特に好適であるとして、船舶をタンカーとしているが、油だけでなく鉱石や石炭等の固形貨物（バルク）も積める兼用船に対しても適用可能である。本実施形態の構成は、その他一般的な船舶に対しても適用可能である。 Further, in the above embodiment, the ship is a tanker as being particularly suitable, but it can also be applied to a dual-purpose ship that can carry not only oil but also solid cargo (bulk) such as ore and coal. The configuration of this embodiment is also applicable to other general ships.

１…機関室、２…ポンプ室、３…カーゴスペース、４…隔壁、５…隔壁、６…バラストタンク、７…タンク、１０…甲板、１０ａ…外縁部、１１…船側外板、１８…連壁部、１８ａ…第１連壁部位、１８ｂ…第２連壁部位、１８ｃ…第３連壁部位、１９…船体、２０…第１ドラム、２７…固定部、２８，４８，６８，７８，７９，９０…係留金物、３５…チェーン、４０…第２ドラム、６０…第３ドラム、７０…第４ドラム、３０，８０，８１，８２，８３，８４…ロープ、９１…台座、９１ａ…底部、９２…チョック、１００…船舶。 1 ... engine room, 2 ... pump room, 3 ... cargo space, 4 ... partition wall, 5 ... partition wall, 6 ... ballast tank, 7 ... tank, 10 ... deck, 10a ... outer edge, 11 ... ship side outer panel, 18 ... chain Wall part, 18a ... 1st continuous wall part, 18b ... 2nd continuous wall part, 18c ... 3rd continuous wall part, 19 ... hull, 20 ... 1st drum, 27 ... fixed part, 28,48,68,78, 79, 90 ... mooring hardware, 35 ... chain, 40 ... second drum, 60 ... third drum, 70 ... fourth drum, 30, 80, 81, 82, 83, 84 ... rope, 91 ... pedestal, 91a ... bottom , 92 ... Chock, 100 ... Ship.

Claims (2)

船体に設けられた甲板と、
前記甲板から上方へ立ち上がり前記甲板を連続して取り囲む連壁部と、
前記甲板の外縁に設けられ、係留を行うときにロープを通す係留金物と、
を備え、
前記連壁部は、前記係留金物を迂回して前記係留金物より前記甲板の内側に設けられる部位を有する、船舶。 The deck on the hull and
A continuous wall portion that rises upward from the deck and continuously surrounds the deck,
A mooring hardware provided on the outer edge of the deck and through which a rope is passed when mooring,
With
The continuous wall portion is a ship having a portion that bypasses the mooring hardware and is provided inside the deck from the mooring hardware. 前記甲板の下方に荷油を貯留する荷油タンクをさらに備え、
前記連壁部は、前記荷油タンクより前記甲板の外側に設けられる、請求項１に記載の船舶。 An oil tank for storing oil is further provided below the deck.
The ship according to claim 1, wherein the continuous wall portion is provided outside the deck from the oil tank.
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