JP2012229005A - Method and metal fitting for landing on water and lifting and recovery of underwater vehicle - Google Patents

Method and metal fitting for landing on water and lifting and recovery of underwater vehicle Download PDF

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JP2012229005A
JP2012229005A JP2011100167A JP2011100167A JP2012229005A JP 2012229005 A JP2012229005 A JP 2012229005A JP 2011100167 A JP2011100167 A JP 2011100167A JP 2011100167 A JP2011100167 A JP 2011100167A JP 2012229005 A JP2012229005 A JP 2012229005A
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underwater vehicle
landing
lifting
holding
operation support
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JP5759246B2 (en
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Kenji Nagahashi
賢司 永橋
Isao Yamanaka
功夫 山中
Takashi Obara
敬史 小原
Masakazu Matsushima
正和 松嶋
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Mitsui Engineering and Shipbuilding Co Ltd
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Abstract

PROBLEM TO BE SOLVED: To provide a method for landing on water and lifting and recovery of an underwater vehicle that is hardly affected by the marine meteorology in the landing on water and lifting and recovery of an underwater vehicle without the need of a special operational support ship.SOLUTION: The method for landing the underwater vehicle 40 on water from the operational support ship or lifting and recovery it to the operational support ship by using the operational support ship 10 having a discharging means 12 includes : a step of making the discharging means support a holding metal 60 for holding a longitudinal end to stabilize the underwater vehicle; a step of lifting the underwater vehicle vertically by making the holding metal hold the above end of the underwater vehicle; a step of turning the underwater vehicle around the rotational shaft along the longitudinal central shaft to point the landing water surface or the landing ground surface in the landing water direction or the loading direction; and a step of landing on water or lifting and recovery of the underwater vehicle through the discharging means.

Description

本発明は、無索無人の水中航走体を運用支援船から着水または運用支援船へ揚収するための方法に関する。   The present invention relates to a method for landing an unmanned underwater vehicle from an operation support ship to landing or an operation support ship.

海底情報の調査等を目的として用いられる水中航走体は、運用支援船に搭載されて調査対象となる海域まで運ばれる。このため、調査の前には水中航走体の着水作業が必要となり、調査後には揚収作業が必要となる。このような作業の中で、特に問題となるのは、運用支援船と水中航走体との接触を避けながら船上への引き上げを行う必要がある揚収作業である。   An underwater vehicle used for the purpose of investigating seafloor information, etc. is mounted on an operation support ship and transported to the surveyed sea area. For this reason, it is necessary to land the underwater vehicle before the survey, and after the survey, it is necessary to collect the water. Among such operations, the problem that is particularly problematic is the lifting operation that needs to be lifted to the ship while avoiding contact between the operation support vessel and the underwater vehicle.

従来、比較的小型の水中航走体は、特許文献1に開示されているように、揚収網で捕らえた水中航走体を運用支援船の舷側に備えられたスロープ(斜板)を利用して船上の作業員が引き上げるという手段が採られていた。   Conventionally, as disclosed in Patent Document 1, a relatively small underwater vehicle uses a slope (swash plate) provided on the shore side of an operation support ship with an underwater vehicle captured by a lifting net. Then, a method was adopted in which a worker on the ship pulled it up.

また、種々の調査機器を搭載した比較的大型な水中航走体は、人手のみによる引き上げが困難であるため、運用支援船に設けられた揚苛手段を用いて揚収される。例えば特許文献2に開示されているような技術では、海底調査を終えた水中航走体が海面付近に到達すると水中航走体から、牽引索が接続されたブイが放出される。放出されたブイは、運用支援船上の作業員により引き上げられ、運用支援船に備えられた揚苛手段に接続される。牽引索は、水中航走体を2点吊りできるように玉掛けされているため、揚苛手段によって引き上げられる水中航走体は海面に対して略水平な姿勢となるように引き上げられる。これにより、引き上げた水中航走体をそのまま運用支援船上に載置することが可能となる。   In addition, a relatively large underwater vehicle equipped with various investigation equipment is difficult to lift by hand alone, and is therefore lifted using a lifting mechanism provided in the operation support vessel. For example, in the technique disclosed in Patent Document 2, when the underwater vehicle that has completed the seabed survey reaches near the sea surface, the buoy to which the towline is connected is released from the underwater vehicle. The released buoy is lifted by a worker on the operation support vessel and connected to a lifting mechanism provided in the operation support vessel. Since the tow rope is slung so that the underwater vehicle can be suspended at two points, the underwater vehicle that is pulled up by the lifting means is pulled up so as to be substantially horizontal with respect to the sea surface. Thereby, it becomes possible to place the pulled up underwater vehicle on the operation support vessel as it is.

また、特許文献3には、水中航走体を揚収する際に揚苛手段に係る負荷を軽減するために、水中航走体を後端または先端から引き上げ、耐圧容器とボディーカバーの間に溜まった水を排水するという技術が開示されている。   Patent Document 3 discloses that the underwater vehicle is lifted from the rear end or the front end in order to reduce the load on the lifting mechanism when the underwater vehicle is withdrawn, and between the pressure vessel and the body cover. A technique for draining the accumulated water is disclosed.

しかし、引用文献1や引用文献3に開示されている技術では、水中航走体の捕獲、牽引索の接続のために作業員が海に入る必要がある。このため、海象が悪い場合には揚収作業を行うことができない。また、引用文献2に開示されている技術によれば、水中航走体に対する牽引索の接続を海中で行うという作業は不要となるが、水中航走体を水平状態で引き上げるために、運用支援船に設けた揚苛手段に対して少なくとも2点の係合部が必要となる。このため、揚苛手段による吊り代が長くなる。揚収時の形態をこのような形態とした場合、海象が悪化すると、運用支援船の揺動により水中航走体の振れが大きくなるため、複数の振れ止め索による牽引作業が必要となる虞がある。このため、やはり海象が悪い場合には揚収作業を行うことが困難となる。さらに、引用文献3に開示されている技術では、水中航走体を垂直に引き上げた後の姿勢制御ができない。このため、運用支援船上に載置する際に、翼が下敷きとなり、破損する虞がある。   However, in the techniques disclosed in Cited Document 1 and Cited Document 3, it is necessary for an operator to enter the sea in order to capture the underwater vehicle and connect the towline. For this reason, when the sea condition is bad, it is not possible to perform the lifting operation. Further, according to the technique disclosed in the cited document 2, the operation of connecting the towline to the underwater vehicle is unnecessary, but operation support is required to lift the underwater vehicle in a horizontal state. At least two engaging portions are required for the lifting means provided on the ship. For this reason, the suspension allowance by a lifting caulking means becomes long. If the form at the time of unloading is such a form, if the sea condition deteriorates, the swing of the underwater vehicle will increase due to the swinging of the operation support ship, so it may be necessary to perform towing work with multiple steady-rest ropes. There is. For this reason, when the sea condition is bad, it is difficult to perform the lifting operation. Furthermore, with the technique disclosed in the cited document 3, posture control cannot be performed after the underwater vehicle is pulled up vertically. For this reason, when placing on the operation support ship, the wing becomes an underlay and may be damaged.

このような実状を鑑み、水中航走体を海中で発射回収することのできる技術が、特許文献4に開示されている。特許文献4に開示されている技術は、運用支援船下部に収容可能とされる発射回収カゴに牽引索を接続し、これを海中に放出し、この発射回収カゴを介して水中航走体の発射、回収を実施するというものである。具体的には、発射回収カゴの出入り口に、誘導信号を出力するピンガを複数設け、前記誘導信号を受けた水中航走体が姿勢制御および位置決めを行い、発射回収カゴ内へ収容されるというものである。   In view of such a situation, Patent Document 4 discloses a technique that can launch and collect an underwater vehicle in the sea. In the technology disclosed in Patent Document 4, a towline is connected to a launch / recovery basket that can be accommodated in the lower part of the operation support ship, and this is released into the sea. Launch and collect. Specifically, a plurality of pingers that output a guidance signal are provided at the entrance and exit of the launch collection basket, and the underwater vehicle that receives the guidance signal performs posture control and positioning, and is accommodated in the launch collection basket. It is.

特開平11−291981号公報Japanese Patent Laid-Open No. 11-291981 特開2003−291888号公報JP 2003-291888 A 特開2006−298000号公報JP 2006-298000 A 特開2009−208511号公報JP 2009-208511 A

特許文献4に開示されているような技術によれば、水中航走体の発射回収を海中で行い、かつ発射回収カゴを運用支援船の下部に収容可能とすることより、着水、揚収といった作業が無く、海象の悪化による揺動等の影響を受け難いということができる。しかし、特許文献4に開示されているような技術では、水中航走体を収容可能なサイズのカゴ(発射回収カゴ)を収容、牽引可能な専用の運用支援船が必要となる。このため、専用のハンドリング装置等を備えた専用の運用支援船を持たず、様々な船で運用することができるという無索無人の水中航走体の利点を活かすことができなくなってしまう。
また、発射回収カゴと水中航走体との間での姿勢および位置制御は、潮流の影響下では複雑な制御系が必要となることが考えられる。
According to the technology disclosed in Patent Document 4, the launch and recovery of the underwater vehicle is performed in the sea, and the launch and recovery basket can be accommodated in the lower part of the operation support ship. There is no such work, and it can be said that it is difficult to be affected by fluctuations caused by the deterioration of sea conditions. However, the technique disclosed in Patent Document 4 requires a dedicated operation support ship that can accommodate and tow a cage of a size that can accommodate an underwater vehicle (launch and recovery basket). For this reason, it is impossible to take advantage of the unmanned underwater vehicle that can be operated on various ships without having a dedicated operation support ship equipped with a dedicated handling device or the like.
In addition, it is considered that the attitude and position control between the launch and recovery basket and the underwater vehicle requires a complicated control system under the influence of tidal currents.

そこで本発明では、水中航走体の着水、揚収作業において海象の影響を受け難く、かつ専用の運用支援船を必要としない水中航走体の着水揚収方法、およびこの方法を実施する場合に用いる保持金具を提供することを目的とする。   Therefore, in the present invention, an underwater vehicle landing method for landing underwater vehicles that is not easily affected by sea conditions and does not require a dedicated operation support vessel, and this method are implemented. It aims at providing the holding metal fitting used when doing.

上記目的を達成するための本発明に係る水中航走体の着水揚収方法は、揚荷手段を備えた運用支援船を用いて、水中航走体を運用支援船から海上へ着水させるため、または海上から運用支援船へ揚収するための方法であって、前記水中航走体の長手方向端部を保持して安定させるための保持金具を前記揚荷手段に支持させる工程と、前記水中航走体の前記端部を前記保持金具に保持させて前記水中航走体を垂直に吊り上げる工程と、前記水中航走体を長手方向中心軸に沿った回転軸回りに回動させて着水方向あるいは荷役方向に着水面あるいは接地面を向ける工程と、前記揚荷手段を介して前記水中航走体を着水あるいは揚収する工程と、を有することを特徴とする。   In order to achieve the above object, a landing method of an underwater vehicle according to the present invention causes an underwater vehicle to land on the sea from an operation support vessel using an operation support vessel equipped with a lifting means. Or a method for withdrawing from the sea to the operation support ship, the step of supporting the holding means for holding and stabilizing the longitudinal end of the underwater vehicle to the unloading means, Holding the end of the underwater vehicle on the holding bracket and lifting the underwater vehicle vertically; and rotating the underwater vehicle about a rotation axis along a longitudinal central axis. The method includes a step of directing a landing surface or a ground contact surface in a landing direction or a cargo handling direction, and a step of landing or picking up the underwater vehicle through the loading means.

また、上記のような特徴を有する水中航走体の着水揚収方法のうち、前記水中航走体を海上から運用支援船へ揚収する場合においては、前記水中航走体を吊り上げる工程の前に前記水中航走体における保持側端部から揚収索付ブイを放出させる工程と、前記運用支援船上から前記揚収索付ブイを回収する工程と、前記保持金具を介して揚収索を巻上げ手段に接続する工程を有するようにすると良い。   Further, in the landing method of the underwater vehicle having the above-mentioned characteristics, when the underwater vehicle is to be collected from the sea to the operation support ship, the step of lifting the underwater vehicle The step of discharging the buoy with a lifting rope from the holding side end portion in the underwater vehicle, the step of collecting the buoy with the lifting rope from the operation support ship, and the lifting rope via the holding fitting It is preferable to have a step of connecting to the winding means.

このような特徴を有することによれば、水中航走体の揚収作業の全てを運用支援船上から行うことができる。このため、ダイバーによる海中作業が必要な従来の方法に比べ、海象の影響を受け難い。   By having such a feature, it is possible to perform all of the operations for picking up the underwater vehicle from the operation support ship. For this reason, compared with the conventional method which requires the underwater work by a diver, it is hard to receive the influence of a sea state.

また、上記のような特徴を有する水中航走体の着水揚収方法では、前記揚荷手段としてAフレーム構造のクレーンを用い、前記クレーンのフレーム間にスリングロープを張り渡す工程を有し、前記水中航走体を揚収する工程において前記クレーンを前記運用支援船側に振り込む際に前記スリングロープによって前記水中航走体を受け止めるようにすると良い。   Further, in the landing landing method of the underwater vehicle having the characteristics as described above, a crane having an A frame structure is used as the loading means, and a step of stretching a sling rope between the frames of the crane, In the step of picking up the underwater vehicle, the underwater vehicle may be received by the sling rope when the crane is transferred to the operation support ship side.

このような特徴を有することによれば、クレーンのフレーム間に垂下される水中航走体を、フレームの傾倒状態に倣わせて倒し込む事ができる。また、スリングロープにより水中航走体を受け止めるため、水中航走体が傷つき難い。   By having such a feature, the underwater vehicle suspended between the frames of the crane can be brought down in accordance with the tilted state of the frame. In addition, since the underwater vehicle is received by the sling rope, the underwater vehicle is hardly damaged.

また、上記のような特徴を有する水中航走体の着水揚収方法のうち、前記水中航走体を前記運用支援船から海上へ着水させる場合においては、前記水中航走体を吊り上げる工程の前に前記水中航走体における保持側端部に着水索を接続する工程を有し、前記水中航走体を着水させる工程の後に前記着水索を遠隔操作にて前記水中航走体から切り離す工程とを有するようにすると良い。   Further, in the landing method of the underwater vehicle having the above characteristics, when the underwater vehicle is landed from the operation support ship to the sea, the step of lifting the underwater vehicle And a step of connecting a landing line to a holding side end of the underwater vehicle, and after the step of landing the underwater vehicle, the underwater vehicle is remotely operated by the remote operation. And a step of separating from the body.

このような特徴を有することによれば、水中航走体の着水作業の全てを運用支援船上から行うことができる。このため、ダイバーによる海中作業(水中航走体の切り離し作業)が必要な従来の方法に比べ、海象の影響を受け難い。   According to such a feature, it is possible to perform all the landing work of the underwater vehicle from the operation support ship. For this reason, compared with the conventional method which requires the underwater work (separation work of an underwater vehicle) by a diver, it is hard to receive the influence of a sea state.

さらに、上記のような特徴を有する水中航走体の着水揚収方法では、前記運用支援船に、前記水中航走体を載置する載置台を有する稼動台座を備え、前記水中航走体を前記運用支援船から吊り上げる際、あるいは前記水中航走体を前記運用支援船に揚収する際に、前記載置台を前記水中航走体の傾斜方向へ傾けるようにすると良い。   Further, in the landing method of landing of the underwater vehicle having the above-described characteristics, the operation support ship includes an operation base having a mounting table on which the underwater vehicle is mounted, and the underwater vehicle It is preferable to tilt the mounting table in the tilt direction of the underwater vehicle when the vehicle is lifted from the operation support vessel or when the underwater vehicle is taken up by the operation support vessel.

このような特徴を有することによれば、垂直に吊り上げられた水中航走体を接地させる際、接地部に過度の負荷がかかる虞が無くなる。また、水中航走体を垂直に吊り上げる際にも、最後に地切りする箇所、あるいは艇体に過度の負荷が係る虞が無くなる。   With such a feature, there is no possibility that an excessive load is applied to the grounding portion when the vertically suspended underwater vehicle is grounded. Further, when the underwater vehicle is lifted vertically, there is no possibility that an excessive load is applied to the last grounding point or the hull.

また、上記目的を達成するための本発明に係る保持金具は、上記特徴を有する水中航走体の着水揚収方法に用いられる保持金具であって、運用支援船に備えられた揚荷手段の吊り上げワイヤを係合する係合部と、水中航走体の保持側端部の一部を収容する収容部と、水中航走体に当接して吊り上げ状態を安定させる当接部と有することを特徴とする。   Further, a holding metal fitting according to the present invention for achieving the above object is a holding metal fitting used in a landing method for landing an underwater vehicle having the above characteristics, and is a loading means provided in an operation support ship. An engaging portion that engages the lifting wire, a housing portion that accommodates a part of the holding-side end portion of the underwater vehicle, and a contact portion that contacts the underwater vehicle and stabilizes the lifted state. It is characterized by.

また、上記のような特徴を有する保持金具において前記当接部には、緩衝材を設けるようにすると良い。
このような特徴を有することにより、水中航走体を保持した際に、水中航走体を傷つける虞が無い。
Further, in the holding metal fitting having the above-described characteristics, a buffer material may be provided at the contact portion.
By having such a feature, there is no possibility of damaging the underwater vehicle when the underwater vehicle is held.

また、上記のような特徴を有する保持金具では、前記収容部内に、前記水中航走体に接続する着水索、または前記水中航走体から放出された揚収索を掛け回すシーブを設け、前記収容部は、少なくとも前記着水索または前記揚収索を外部に引き出すことが可能なフレーム構造とすると良い。   Further, in the holding metal fitting having the above-described characteristics, a sheave that hangs a landing line connected to the underwater vehicle or a lifting line discharged from the underwater vehicle is provided in the housing portion, It is preferable that the housing portion has a frame structure capable of pulling out at least the landing line or the lifting line.

このような特徴を有することにより、揚苛手段以外の巻上げ手段のワイヤを用いて保持金具まで水中航走体を引き上げることが可能となる。
また、上記のような特徴を有する保持金具では、保持した前記水中航走体を長手方向中心線回りに回転させることを可能とするローテータを備えるようにすると良い。
By having such a feature, it is possible to pull up the underwater vehicle to the holding fitting using the wire of the winding means other than the lifting means.
In addition, the holding metal fitting having the above-described features may be provided with a rotator that allows the held underwater vehicle to be rotated around the longitudinal center line.

このような特徴を有することにより、垂直に吊り上げた水中航走体の姿勢制御を行うことが可能となる。これにより、水中航走体を揚収、あるいは着水させる際、翼が艇体の下敷きになる虞が無くなる。   By having such a feature, it is possible to control the attitude of the underwater vehicle suspended vertically. As a result, there is no possibility that the wing becomes an underlay of the hull when the underwater vehicle is picked up or landed.

また、上記のような特徴を有する保持金具において前記ローテータは、前記当接部に設けるようにすると良い。
このような構成とすることにより、水中航走体を保持したまま、吊り上げ形態に影響を与えることなく水中航走体を中心線回りに回転させることが可能となるからである。
In the holding metal fitting having the above-described characteristics, the rotator may be provided at the contact portion.
This is because, with such a configuration, it is possible to rotate the underwater vehicle around the center line without affecting the lifting form while holding the underwater vehicle.

さらに、上記のような特徴を有する保持金具では、前記係合部に、前記ワイヤによって吊り上げられた後に前記揚荷手段に安定支持させるための緩衝手段を備えるようにすると良い。   Furthermore, in the holding metal fitting having the above-described features, it is preferable that the engaging portion is provided with a buffer means for stably supporting the lifting means after being lifted by the wire.

このような特徴を有することによれば保持金具を揚苛手段と擬似的に一体化することができる。これにより、水中航走体を保持した状態では、ワイヤ等の可撓部材による吊り代が無くなる。よって、吊り上げた水中航走体の揚動を抑制することができる。   By having such a feature, the holding fitting can be integrated with the lifting means in a pseudo manner. Thereby, in the state which hold | maintained the underwater vehicle, the suspension allowance by flexible members, such as a wire, is lose | eliminated. Therefore, the lift of the suspended underwater vehicle can be suppressed.

上記のような特徴を有する水中航走体の着水揚収方法によれば、水中航走体の着水、揚収作業において海象の影響を受け難く、従来に比べ、海象が悪化した場合であっても、着水、揚収作業を実施できる可能性が高まる。また、運用支援船には、揚苛手段と巻上げ手段、および保持金具が具備されていれば良いため、水中航走体を運用するにあたって専用の運用支援船を必要としない。   According to the landing method of the underwater vehicle with the above characteristics, it is difficult to be affected by sea conditions in landing and lifting operations of the underwater vehicle. Even if this is the case, the possibility of performing landing and lifting operations is increased. In addition, since the operation support vessel only needs to be provided with a lifting mechanism, a hoisting device, and a holding bracket, a dedicated operation support vessel is not required for operating the underwater vehicle.

実施形態で利用する運用支援船の装備例を説明するための図である。It is a figure for demonstrating the example of an equipment of the operation assistance ship utilized in embodiment. 実施形態において揚収、着水を行う水中航走体の構成を示す図である。It is a figure which shows the structure of the underwater vehicle which picks up and lands in embodiment. 水中航走体の揚収作業を行う際の工程を示すフローである。It is a flow which shows the process at the time of performing the operation of picking up an underwater vehicle. 実施形態で用いる保持金具の具体例の正面構成を示す図である。It is a figure which shows the front structure of the specific example of the holding | maintenance metal fitting used by embodiment. 図4に示す保持金具の側面構成を示す図である。It is a figure which shows the side surface structure of the holding | maintenance metal fitting shown in FIG. 図4に示す保持金具の平面構成を示す図である。It is a figure which shows the planar structure of the holding | maintenance metal fitting shown in FIG. 図4に示す保持金具の構成を示す斜視図である。It is a perspective view which shows the structure of the holding | maintenance metal fitting shown in FIG. 緩衝手段設置工程の様子を示す図である。It is a figure which shows the mode of a buffer means installation process. 保持金具設置工程、スリングロープ張り渡し工程、ワイヤ巻き掛け工程の様子を示す図である。It is a figure which shows the mode of a holding metal fitting installation process, a sling rope spanning process, and a wire winding process. 海上に浮上し、ブイを放出した水中航走体の様子を示す図である。It is a figure which shows the mode of the underwater vehicle which surfaced on the sea and discharge | released the buoy. 水中航走体を捕捉する様子を示す図である。It is a figure which shows a mode that an underwater vehicle is caught. 揚収索接続工程の様子を示す図である。It is a figure which shows the mode of a pick-up line connection process. 水中航走体吊り上げ工程の様子を示す図である。It is a figure which shows the mode of an underwater vehicle body lifting process. 姿勢制御工程の様子を示す図である。It is a figure which shows the mode of an attitude | position control process. 振り込み工程において水中航走体がスリングロープに接触する様子を示す図である。It is a figure which shows a mode that an underwater vehicle touches a sling rope in a transfer process. 振り込み工程においてフレームを最大振り込み位置まで振り込んだ状態を示す図である。It is a figure which shows the state which transferred the flame | frame to the maximum transfer position in the transfer process. 接地工程の様子を示す図である。It is a figure which shows the mode of a grounding process. 揚収を完了した水中航走体の様子を示す図である。It is a figure which shows the mode of the underwater vehicle which completed the collection. 水中航走体の着水作業を行う際の工程を示すフローである。It is a flow which shows the process at the time of performing landing work of an underwater vehicle. 実施形態で用いる吊り金具の正面構成を示す図である。It is a figure which shows the front structure of the hanging metal fitting used by embodiment. 実施形態で用いる吊り金具の左側面の構成を示す図である。It is a figure which shows the structure of the left side surface of the hanging metal fitting used by embodiment.

以下、本発明の水中航走体の着水揚収方法、および水中航走体の着水揚収に用いる保持金具に係る実施の形態について、図面を参照しつつ詳細に説明する。
まず、本発明の水中航走体の着水揚収方法を実施するにあたって使用する運用支援船と水中航走体の構成について、図1および図2を参照して説明する。
Hereinafter, embodiments of the landing method of the underwater vehicle according to the present invention and a holding metal fitting used for landing of the underwater vehicle will be described in detail with reference to the drawings.
First, the configuration of the operation support ship and the underwater vehicle used for carrying out the landing method of the underwater vehicle according to the present invention will be described with reference to FIGS. 1 and 2.

本実施形態で使用する運用支援船10は、例えば海洋調査船と呼ばれる船であれば良い。具体的には、少なくとも船体に、詳細を後述する水中航走体40を吊り上げ可能とする揚荷手段12を備えている。本実施形態で使用する運用支援船10は図1に示すように、船尾に、Aフレーム構造(門型フレーム構造)を持つ揚荷手段12(クレーン)を備える構成としている。揚荷手段12を構成するフレーム14には、いわゆるペンダント型のフレーム(以下、ペンダントフレーム16と称す)が付随しており、フレーム14の船体側への振り込みや、海上側への振り出しを行った場合であっても、ペンダントフレーム16のベース16aが水平を保つように構成されている。揚荷手段12のワイヤ(以下、第1ワイヤ18と称す)は、ペンダントフレーム16のベース16aから垂下されるように構成されている。   The operation support ship 10 used in the present embodiment may be a ship called an ocean research ship, for example. Specifically, at least the hull is provided with a lifting means 12 that can lift an underwater vehicle 40 to be described in detail later. As shown in FIG. 1, the operation support vessel 10 used in the present embodiment is configured to include a loading means 12 (crane) having an A frame structure (gate frame structure) at the stern. A so-called pendant-type frame (hereinafter referred to as a pendant frame 16) is attached to the frame 14 constituting the unloading means 12, and the frame 14 is transferred to the hull side or to the sea side. Even in this case, the base 16a of the pendant frame 16 is configured to be kept horizontal. The wire of the unloading means 12 (hereinafter referred to as the first wire 18) is configured to be suspended from the base 16a of the pendant frame 16.

また、本実施形態で使用する運用支援船10には、揚荷手段12とは別に巻上げ手段24が備えられている。巻上げ手段24としては、巻上げ用のワイヤ(不図示)と、ワイヤを巻回させるドラム、およびドラムを回転させてワイヤを巻き取るモータ等の駆動手段(不図示)を備えたウインチ等であれば良い。   Further, the operation support ship 10 used in the present embodiment is provided with a winding means 24 in addition to the unloading means 12. The winding means 24 may be a winch or the like equipped with a winding wire (not shown), a drum for winding the wire, and a driving means (not shown) such as a motor for rotating the drum to wind the wire. good.

また、運用支援船10には、詳細を後述する水中航走体40を載置するための稼動台座20を搭載しておくと良い。稼動台座20は、水中航走体40を載置するための載置台22を備えていれば良く、載置台22は、稼動台座20本体を基準として起伏可能な構成とすると良い。   Further, the operation support ship 10 may be equipped with an operation base 20 for mounting an underwater vehicle 40 to be described later in detail. The operating pedestal 20 only needs to include a mounting table 22 for mounting the underwater vehicle 40, and the mounting table 22 may be configured to be able to undulate based on the main body of the operating pedestal 20.

このような運用支援船10であれば、一般的な海洋調査船に備えられた装備で事が足り、専用船への改造等が不要であり、種々の運用支援船10を用いて実施が可能となる。なお、稼動台座20に関しては、水中航走体40と同様に、船体へ搭載すれば足りる。   With such an operation support ship 10, it is sufficient to use the equipment provided for a general marine research ship, and it is not necessary to modify the ship to a dedicated ship, and can be implemented using various operation support ships 10. It becomes. As for the operating pedestal 20, it is sufficient to mount it on the hull as in the case of the underwater vehicle 40.

水中航走体40は、無索で無人探査が可能なものであれば特に限定するものでは無いが、本実施形態で使用するものは図2に示すように、全体として流線型をした、いわゆる魚雷型の艇体42を有するものである。図2に示す形態の水中航走体40には、主翼44と尾翼46、垂直尾翼48、スクリュー50、およびブイ52が備えられている。主翼44と尾翼46は、水中航走体40の傾きや、上昇、下降などを制御するための翼である。図2に示すように、主翼44と尾翼46の双方の角度を変更可能とする水中航走体40では、主翼44と尾翼46を同じ角度で傾けることで、艇体42を傾ける事無く上昇、下降することが可能となる。垂直尾翼48は、艇体42のローリングを抑制すると共に、艇体42を基準として左右の進行方向を制御する役割を担う。垂直尾翼48の先端には、海中において運用支援船からの指令を受けるための音波や、海上に浮上した際に運用支援船から出力される電波を受信するためのアンテナ48a等が備えられている。   The underwater vehicle 40 is not particularly limited as long as it is searchable and capable of unmanned exploration, but what is used in the present embodiment is a so-called torpedo that is generally streamlined as shown in FIG. A hull 42 of the type is provided. 2 includes a main wing 44, a tail wing 46, a vertical tail wing 48, a screw 50, and a buoy 52. The main wing 44 and the tail wing 46 are wings for controlling the inclination, ascent, descent, etc. of the underwater vehicle 40. As shown in FIG. 2, in the underwater vehicle 40 capable of changing the angles of both the main wing 44 and the tail wing 46, the main wing 44 and the tail wing 46 are tilted at the same angle, and the hull 42 is lifted without being tilted. It is possible to descend. The vertical tail 48 suppresses rolling of the hull 42 and controls the right and left traveling directions with respect to the hull 42. The tip of the vertical tail 48 is equipped with an antenna 48a for receiving a sound wave for receiving a command from the operation support ship in the sea and a radio wave output from the operation support ship when it floats on the sea. .

ブイ52は、海上、あるいは海上近傍にまで浮上した水中航走体40から放出される浮きである。ブイ52には、水中航走体40に接続された揚収索54が係合されている。このようなブイ52を放出し、ブイ52を回収することで水中航走体40を捕捉することが可能となる。なお、ブイ52の先端には、水中航走体40を着水させる際に着水索(巻上げ手段24のワイヤ)を係合するための係合部56が設けられている。   The buoy 52 is a float released from the underwater vehicle 40 that has surfaced at sea or near the sea. The buoy 52 is engaged with a lifting line 54 connected to the underwater vehicle 40. By releasing such a buoy 52 and collecting the buoy 52, the underwater vehicle 40 can be captured. At the tip of the buoy 52, an engaging portion 56 is provided for engaging a landing line (wire of the winding means 24) when the underwater vehicle 40 is landed.

次に、上記に一例を挙げた基本構成を持つ運用支援船10と水中航走体40を用いた水中航走体40の着水、揚収方法について説明する。まず、図3、並びに図8〜図18を参照して、揚収作業についての実施形態を説明する。なお、図3は実施形態に係る揚収作業のフローであり、図8〜図18は、揚収作業における各工程を説明するための図である。   Next, a method for landing and collecting the underwater vehicle 40 using the operation support ship 10 having the basic configuration described above and the underwater vehicle 40 will be described. First, with reference to FIG. 3 and FIGS. 8-18, embodiment about the extraction work is described. 3 is a flow of the lifting operation according to the embodiment, and FIGS. 8 to 18 are diagrams for explaining each step in the lifting operation.

まず、図8に示すように、揚荷手段12におけるペンダントフレーム16に、詳細を後述する保持金具60を安定支持するための緩衝手段58を備える。緩衝手段58としては、ショックアブソーバなどである事が望ましいが、保持金具60を押し付けた状態で安定支持することができるものであれば、ウレタン材などにより構成された枠であっても良い(緩衝手段設置工程:S100)。   First, as shown in FIG. 8, the pendant frame 16 in the unloading means 12 is provided with a buffer means 58 for stably supporting a holding metal fitting 60 whose details will be described later. The shock absorber 58 is preferably a shock absorber or the like, but may be a frame made of a urethane material or the like as long as the shock absorber 58 can be stably supported in a state in which the holding metal fitting 60 is pressed (buffer). Means installation step: S100).

保持金具60は、水中航走体40の長手方向端部(本実施形態においては進行方向前側端部)を保持するための冶具であり、図4〜図7に示すように、係合部62と収容部64、および当接部66を主として構成される。なお、図4は保持金具の正面構成を示す図であり、図5は側面構成、図6は上面構成をそれぞれ示し、図7は斜視図である。   The holding metal fitting 60 is a jig for holding the end portion in the longitudinal direction of the underwater vehicle 40 (the front end portion in the traveling direction in the present embodiment), and as shown in FIGS. The housing portion 64 and the contact portion 66 are mainly configured. 4 is a diagram showing a front configuration of the holding metal fitting, FIG. 5 is a side configuration, FIG. 6 is a top configuration, and FIG. 7 is a perspective view.

係合部62は、揚荷手段12における第1ワイヤ18を係合するための吊り環状の貫通孔62a1を設けた平板62aと、緩衝手段58を押し当てるための当接板62bとを有する。収容部64は、係合部62における当接板62bを頂点として構成される水平方向の断面形状を円形とした籠状のフレーム64aを備える。フレーム64aを構成する円形断面の直径は、魚雷型とされる水中航走体40における艇体42の直径よりも若干小さいか、前記直径と同程度となるように形成されている。このような構成とすることで、水中航走体40の端部を収容した上で安定保持することが可能となるからである。収容部64内には、シーブ64bが備えられている。シーブ64bは、水中航走体40を揚収、または着水させる際、水中航走体40を吊り上げるのに利用される。具体的には、巻上げ手段24のワイヤを巻き掛けて、このワイヤの先端を水中航走体40に接続して着水索としたり、水中航走体40から延びる揚収索54に接続してワイヤを巻き上げることで水中航走体40を吊り上げるといった具合である。   The engaging portion 62 includes a flat plate 62 a provided with a suspended annular through hole 62 a 1 for engaging the first wire 18 in the unloading means 12, and a contact plate 62 b for pressing the buffer means 58. The housing part 64 includes a bowl-shaped frame 64a having a circular cross-sectional shape in the horizontal direction, with the contact plate 62b of the engaging part 62 as a vertex. The diameter of the circular cross section constituting the frame 64a is formed to be slightly smaller than or equal to the diameter of the hull 42 in the torpedo shaped underwater vehicle 40. It is because it becomes possible to hold stably after accommodating the edge part of the underwater vehicle 40 by setting it as such a structure. A sheave 64 b is provided in the accommodating portion 64. The sheave 64b is used to lift the underwater vehicle 40 when the underwater vehicle 40 is picked up or landed. Specifically, the wire of the winding means 24 is wound, and the tip of this wire is connected to the underwater vehicle 40 to be a landing line, or connected to the lifting line 54 extending from the underwater vehicle 40. For example, the underwater vehicle 40 is lifted by winding the wire.

当接部66は、収容部64におけるフレーム64aの開口端部側に設けられ、水中航走体40に接触して水中航走体40の揺動を抑制する保持部の役割を担う。なお、当接部66は、枠体となる円形ベース66aと、水中航走体40の艇体42を傷つけることを防ぐ緩衝材66bとを有する。また、実施形態に係る保持金具60の場合、当接部66における円形ベース66aと緩衝材66bとの間にベアリング等により構成されるローテータ(不図示)を介在させ、円形ベース66aに対して緩衝材66bが回動可能な構成としている。このような構成とすることで、保持した水中航走体40を長手方向中心軸回りに回転させることができる。これにより、揚収、または着水させる際の姿勢制御が可能となり、揚収、着水に際して水中航走体40の翼などを傷つけることを防止することができる。   The contact portion 66 is provided on the opening end side of the frame 64 a in the housing portion 64, and plays a role of a holding portion that contacts the underwater vehicle 40 and suppresses the swinging of the underwater vehicle 40. The contact portion 66 includes a circular base 66a serving as a frame and a cushioning material 66b that prevents the hull 42 of the underwater navigation body 40 from being damaged. Further, in the case of the holding metal fitting 60 according to the embodiment, a rotator (not shown) constituted by a bearing or the like is interposed between the circular base 66a and the buffer material 66b in the contact portion 66 so as to buffer the circular base 66a. The material 66b is configured to be rotatable. By setting it as such a structure, the held underwater vehicle 40 can be rotated around the longitudinal central axis. This makes it possible to control the attitude during the lifting or landing, and to prevent the wings of the underwater vehicle 40 from being damaged during the lifting and landing.

次に図9に示すように、船体側に振り込まれた揚荷手段12の第1ワイヤ18に保持金具60を係合する。保持金具60に係合した第1ワイヤ18を巻上げ、保持金具60をペンダントフレーム16のベース16aに備えた緩衝手段58に当接させる。これにより、ペンダントフレーム16のベース16aに対して保持金具60の揺動が無くなる。よって、保持金具60により水中航走体40を保持した場合には、ワイヤ等の可撓部材による水中航走体の吊り代が実質的に無くなる。このため、吊り上げられた水中航走体の揺動が抑制され、振れ止め索等を用いた抑えが必要なくなる(保持金具設置工程:S110)。   Next, as shown in FIG. 9, the holding metal fitting 60 is engaged with the first wire 18 of the loading means 12 that has been transferred to the hull side. The first wire 18 engaged with the holding metal fitting 60 is wound up, and the holding metal fitting 60 is brought into contact with the buffer means 58 provided on the base 16 a of the pendant frame 16. Thereby, the holding metal fitting 60 does not swing with respect to the base 16a of the pendant frame 16. Therefore, when the underwater vehicle 40 is held by the holding metal fitting 60, the suspension allowance of the underwater vehicle by a flexible member such as a wire is substantially eliminated. For this reason, the swinging of the suspended underwater vehicle is suppressed, and it is not necessary to suppress it using a steadying rope or the like (holding bracket installation step: S110).

保持金具60をセットした後、水中航走体40の接地位置(着座位置)に稼動台座20を移動させる(稼動台座移動工程:S121)。なお、本実施形態で接地とは、揚収作業において水中航走体40が船体、あるいは船体に備えられた器具(例えば稼動台座20)により支えられる状態をいう。稼動台座20の移動と前後して、あるいは稼動台座20の移動と同時に、揚荷手段12におけるフレーム14間にスリングロープ70を張り渡す。こうすることにより、吊り上げた水中航走体40を保持した状態で揚荷手段12が船体側へ振り込まれた場合であっても、スリングロープ70により水中航走体40が受け止められる。このため、水中航走体40が垂直状態のまま接地される虞が無い(スリングロープ張り渡し工程:S122)。   After the holding metal fitting 60 is set, the operating base 20 is moved to the ground contact position (sitting position) of the underwater vehicle 40 (operating base moving step: S121). In the present embodiment, the grounding refers to a state in which the underwater vehicle 40 is supported by the hull or an instrument (for example, the operation base 20) provided in the hull during the lifting operation. The sling rope 70 is stretched between the frames 14 in the unloading means 12 before or after the movement of the operating base 20 or simultaneously with the movement of the operating base 20. By doing so, the underwater vehicle 40 is received by the sling rope 70 even when the lifting means 12 is transferred to the hull while the suspended underwater vehicle 40 is held. For this reason, there is no possibility that the underwater vehicle 40 is grounded in a vertical state (sling rope spanning step: S122).

また、稼動台座20の移動やスリングロープ70の張り渡しと前後して、あるいは同時に、巻上げ手段24からワイヤを引き出し、保持金具60におけるシーブ64bに巻き掛ける。シーブ64bに対する巻き掛けは、保持金具60における収容部64のフレーム64a外側からワイヤを入れ、シーブ64bに巻き掛けた後に当接部66側から引き出すようにする(ワイヤ巻き掛け工程:S123)。   Further, before or after the movement of the operating base 20 or the stretching of the sling rope 70, or simultaneously, the wire is pulled out from the winding means 24 and wound around the sheave 64b of the holding metal fitting 60. As for winding around the sheave 64b, a wire is inserted from the outside of the frame 64a of the accommodating portion 64 in the holding metal fitting 60, and is wound around the sheave 64b and then pulled out from the contact portion 66 side (wire winding step: S123).

次に、図10に示すように水中航走体40が潜航を終了して浮上する際に放出した揚収索54付のブイ52を回収し水中航走体40を捕捉する。ブイ52の回収は、運用支援船10上から行う。具体的には図11に示すように、サンドレット72等を投げ込み、これにブイ52を引掛けて引き寄せる。ブイ52を回収した後、揚収索54からブイ52を取り外し、図12に示すように保持金具60の当接部66から引き出されているワイヤに接続する(揚収索接続工程:S130)。   Next, as shown in FIG. 10, the underwater vehicle 40 is recovered by collecting the buoy 52 with the lifting / lowering cable 54 that is released when the underwater vehicle 40 finishes diving and ascends. The buoy 52 is collected from the operation support ship 10. Specifically, as shown in FIG. 11, a sandlet 72 or the like is thrown in, and a buoy 52 is hooked on the sandlet 72 or the like. After the buoy 52 is collected, the buoy 52 is removed from the lifting / lowering line 54 and connected to the wire drawn from the abutting portion 66 of the holding metal fitting 60 as shown in FIG. 12 (lifting / line connecting step: S130).

ワイヤに対して揚収索54を接続した後図13に示すように揚荷手段12のフレーム14を海上側へ振り出し、巻上げ手段24によりワイヤを巻き取り、水中航走体40を吊り上げる。水中航走体40を垂直に吊り上げることで、水中航走体40を構成する耐圧容器とカバー(いずれも具体的構成については不図示)との間の水切りを行うことができ、揚収索54に掛かる負担を軽減することができる。水中航走体40の吊り上げは、波浪状況を考慮しながら、平均波周期(6秒間)以内で行う。これにより、水中航走体40の揺れを抑制することができる。水中航走体40の吊り上げは、水中航走体40の艇体42が保持金具60の当接部66に接触して保持されるまで行う。これにより、ワイヤによる吊り代が無くなり、水中航走体40の吊り上げ状態が安定する(水中航走体吊り上げ工程:S140)。   After connecting the lifting line 54 to the wire, as shown in FIG. 13, the frame 14 of the loading means 12 is swung out to the sea side, the wire is wound up by the winding means 24, and the underwater vehicle 40 is lifted. By lifting the underwater vehicle 40 vertically, it is possible to drain water between a pressure vessel and a cover (both not shown in a specific configuration) constituting the underwater vehicle 40, and a lifting line 54. Can be reduced. The underwater vehicle 40 is lifted within an average wave period (6 seconds) in consideration of wave conditions. Thereby, the shaking of the underwater vehicle 40 can be suppressed. The underwater vehicle 40 is lifted up until the hull 42 of the underwater vehicle 40 is held in contact with the contact portion 66 of the holding metal 60. Thereby, the suspension allowance by a wire is lose | eliminated and the lifting state of the underwater vehicle 40 is stabilized (underwater vehicle lifting process: S140).

ワイヤにより吊り上げ、保持金具60によって水中航走体40を保持した後、水中航走体40を回転させ、図14に示すように艇体42の底部が運用支援船10の船体側を向くようにする。なお、水中航走体40の回転は、図示しないロープ等を介して手動で行っても良いし、図示しないモータ等の駆動手段を用いて行っても良い(姿勢制御工程:S150)。   After being lifted by the wire and holding the underwater vehicle 40 by the holding bracket 60, the underwater vehicle 40 is rotated so that the bottom of the hull 42 faces the hull side of the operation support vessel 10 as shown in FIG. To do. The rotation of the underwater vehicle 40 may be performed manually via a rope (not shown) or a driving means such as a motor (not shown) (attitude control step: S150).

ローテータを介した姿勢制御を終えた後、揚荷手段12のフレーム14を運用支援船10側に振り込む。フレーム14の振り込みが垂直状態となると、ペンダントフレーム16に垂下された状態となっている水中航走体40は図15に示すように、フレーム14間に張り渡されたスリングロープ70に接触する。この状態でフレーム14を最大振り込み位置まで振り込むと、スリングロープ70に支持された水中航走体40は図16に示すように、フレーム14の傾斜に沿った角度を維持することとなる。なお、フレーム14の振り込みを行う際には、巻上げ手段24によるワイヤの巻上げ状態を変化させ、水中航走体40の吊り上げ張力を一定に保持させる。これにより、フレーム14の振り込み時に吊り上げ張力が下がり、水中航走体40の保持状態が解除されるといった虞が無くなる(振り込み工程:S160)。   After finishing the attitude control via the rotator, the frame 14 of the loading means 12 is transferred to the operation support ship 10 side. When the transfer of the frame 14 is in a vertical state, the underwater vehicle 40 suspended from the pendant frame 16 comes into contact with a sling rope 70 stretched between the frames 14 as shown in FIG. When the frame 14 is moved to the maximum transfer position in this state, the underwater vehicle 40 supported by the sling rope 70 maintains an angle along the inclination of the frame 14 as shown in FIG. When the frame 14 is transferred, the winding state of the wire by the winding means 24 is changed to keep the lifting tension of the underwater vehicle 40 constant. Accordingly, there is no possibility that the lifting tension is lowered when the frame 14 is transferred and the holding state of the underwater vehicle 40 is released (transfer process: S160).

揚荷手段12のフレーム14を最大振り込み位置まで振り込んだ後、水中航走体40の接地位置に移動させておいた稼動台座20の載置台22を起伏させ(図17参照)、載置台22をフレーム14の傾斜角度、すなわち水中航走体40の傾きに合わせて傾斜させ、載置台22に水中航走体40を接地させる。その後、載置台22に対して水中航走体40を縛り付けて固定する(ラッシング)。水中航走体40を固定した後、スリングロープ70を取り外し、巻上げ手段24によるワイヤの巻上げ状態を解除し、ワイヤに掛かる張力を緩める(接地工程:S170)。   After the frame 14 of the unloading means 12 is transferred to the maximum transfer position, the mounting table 22 of the working base 20 that has been moved to the ground contact position of the underwater vehicle 40 is raised and lowered (see FIG. 17). The frame 14 is tilted in accordance with the tilt angle of the frame 14, that is, the tilt of the underwater vehicle 40, and the underwater vehicle 40 is grounded on the mounting table 22. Thereafter, the underwater vehicle 40 is bound and fixed to the mounting table 22 (lashing). After fixing the underwater vehicle 40, the sling rope 70 is removed, the winding state of the wire by the winding means 24 is released, and the tension applied to the wire is released (grounding step: S170).

最後に、図18に示すように、稼動台座20の載置台22を水平に戻し、揚収索54の収納、あるいは取り外しを行った後、稼動台座20を移動して水中航走体40を格納する(揚収完了:S180)。   Finally, as shown in FIG. 18, the mounting base 22 of the operating base 20 is returned to the horizontal position, and the hoisting line 54 is stored or removed, and then the operating base 20 is moved to store the underwater vehicle 40. (Retrieval completion: S180).

このような揚収方法によれば、保持金具60により水中航走体40の頭部を保持することとなるため、水中航走体40を吊り上げた際の揺動を抑制することができる。水中航走体40の揺動を抑制することができることより、振れ止め索による抑え込みを行う必要がなく、甲板作業の労力を抑えることができる。また、水中航走体40の捕捉から吊り上げ、揚収完了までを運用支援船10上における作業のみで実施することができる。このため、水中航走体40捕捉のための作業艇の出動や、ダイバーなどによる海上作業が無く、海象の悪化による影響を受け難い。例えば、従来では揚収作業が困難とされてきたSea State 4(有義波高2.5m、平均波周期6.0sec:気象庁風浪階級表より)であっても、揚収作業を行うことができる。   According to such a lifting method, since the head of the underwater vehicle 40 is held by the holding metal fitting 60, swinging when the underwater vehicle 40 is lifted can be suppressed. Since the swinging of the underwater vehicle 40 can be suppressed, it is not necessary to perform the restraining with the steadying rope, and the work of the deck work can be suppressed. Further, from the capture of the underwater vehicle 40 to the lifting and completion of the lifting can be carried out only on the operation support ship 10. For this reason, there is no dispatch of a work boat for catching the underwater vehicle 40 and maritime work by a diver or the like, and it is difficult to be affected by the deterioration of sea conditions. For example, even if it is Sea State 4 (meaning wave height 2.5 m, average wave period 6.0 sec: from the Japan Meteorological Agency wind class table), which has conventionally been difficult to pick up, it can be picked up. .

また、作業を行うにあたり必要とされる専用冶具は保持金具60程度であるため、運用支援船10を専用設計とする必要が無い。よって、種々の船舶(例えば海洋調査船)を運用支援船10として利用することができる。   Further, since the dedicated jig required for performing the work is about the holding metal 60, the operation support ship 10 does not need to be designed exclusively. Therefore, various ships (for example, marine research ships) can be used as the operation support ship 10.

なお、上記実施形態では、揚苛手段12のフレーム14間にスリングロープ70を張り渡し、水中航走体40を吊り上げた揚苛手段12のフレーム14が垂直状態に達した際にスリングロープ70で水中航走体40を受け止める旨記載した。しかしながら、本発明に係る水中航走体40の揚収方法を実施するにあたっては、揚苛手段12のフレーム14が垂直状態に達した際、稼動台座20の載置台22を垂直に起こすようにしても良い。このようにすれば、揚苛手段12のフレーム14が垂直状態に達することで、吊り上げられた水中航走体40は稼動台座20の載置台22に当接することとなる。この後、水中航走体40をラッシングし、巻上げ手段24のワイヤの張力を弱めて載置台22を寝かせれば、上記実施形態と同様に、水中航走体40の揚収が完了するからである。   In the above embodiment, when the sling rope 70 is stretched between the frames 14 of the lifting means 12 and the frame 14 of the lifting means 12 that lifts the underwater vehicle 40 reaches a vertical state, the sling rope 70 The fact that the underwater vehicle 40 is received is described. However, in carrying out the method for lifting the underwater vehicle 40 according to the present invention, when the frame 14 of the lifting means 12 reaches the vertical state, the mounting table 22 of the working base 20 is raised vertically. Also good. In this way, when the frame 14 of the lifting means 12 reaches the vertical state, the suspended underwater vehicle 40 comes into contact with the mounting table 22 of the operating base 20. After that, if the underwater vehicle 40 is lashed and the wire 22 of the winding means 24 is weakened and the mounting table 22 is laid down, the lifting of the underwater vehicle 40 is completed as in the above embodiment. is there.

次に、水中航走体の着水作業について図19を参照して説明する。
まず、運用支援船10側に振り込まれた揚苛手段12のペンダントフレーム16に、保持金具60を支持させる。保持金具60の支持は、揚収作業時と同様で良い。すなわち、保持金具60における係合部62に、巻上げ手段24のワイヤを係合し、これを吊り上げ、ペンダントフレーム16のベース16aにセットした緩衝手段58に当接させて安定させるという方法である(吊り金具設置工程:S200)。
Next, the landing operation of the underwater vehicle will be described with reference to FIG.
First, the holding metal fitting 60 is supported on the pendant frame 16 of the lifting means 12 transferred to the operation support ship 10 side. The support of the holding metal 60 may be the same as during the lifting operation. That is, the wire of the winding means 24 is engaged with the engaging portion 62 of the holding metal 60, and this is lifted and brought into contact with the buffer means 58 set on the base 16a of the pendant frame 16 to stabilize it ( Hanging bracket installation process: S200).

ペンダントフレーム16に保持金具60を支持させた後、運用支援船10に備えられた巻上げ手段24のワイヤを保持金具60のシーブ64bに巻き掛ける。ワイヤの巻き掛けは、保持金具60の収容部64の側面からワイヤを通し、シーブ64bに巻き掛けた後に当接部66側へ先端を垂らすといった方法で良い(ワイヤ巻き掛け工程:S211)。   After the holding metal fitting 60 is supported on the pendant frame 16, the wire of the winding means 24 provided in the operation support ship 10 is wound around the sheave 64 b of the holding metal fitting 60. The wire may be wound by a method in which the wire is passed from the side surface of the housing portion 64 of the holding metal fitting 60, wound around the sheave 64b, and then the tip is hung to the contact portion 66 side (wire winding step: S211).

載置台22に水中航走体40を載置した稼動台座20を配置する。稼動台座20の配置位置は、水中航走体40の吊り上げ位置、すなわち地切り位置とすれば良い(稼動台座移動工程:S212)。   The operation base 20 on which the underwater vehicle 40 is mounted is placed on the mounting table 22. The arrangement position of the operating base 20 may be the lifting position of the underwater vehicle 40, that is, the ground cutting position (operating base moving step: S212).

地切り位置に配置した水中航走体40の端部(本実施形態においては進行方向前側端部)に、保持金具60から垂らされたワイヤ(着水作業においては着水索)を接続する。ワイヤの接続には、遠隔切離手段86を備えた吊り金具76を用いると良い(図20、図21参照)。遠隔操作でワイヤと水中航走体40との係合を解除することができれば、水中航走体40を着水させた後、運用支援船10の船上から、水中航走体40に接続されたワイヤを取り外すことが可能となり、ダイバー等による海上(海中)作業が不要となる。これにより、着水作業の労力が軽減されると共に、着水作業を行うにあたり、海象の悪化に影響され難くなる(着水索接続工程:S220)。   A wire (a landing line in the landing work) suspended from the holding metal fitting 60 is connected to the end of the underwater vehicle 40 arranged at the ground cutting position (the front end in the traveling direction in the present embodiment). For the connection of the wire, it is preferable to use a hanging metal fitting 76 provided with a remote separating means 86 (see FIGS. 20 and 21). If the engagement between the wire and the underwater vehicle 40 can be released by remote control, the underwater vehicle 40 is landed and then connected to the underwater vehicle 40 from the ship of the operation support vessel 10. It becomes possible to remove the wire, and the sea (underwater) work by a diver or the like becomes unnecessary. Thereby, the labor of the landing work is reduced, and when performing the landing work, it is difficult to be affected by the deterioration of sea conditions (landing line connecting step: S220).

実施形態で用いる吊り金具は、例えば図20、図21に示すような形態であれば良い。なお、図20は吊り金具の正面形態を示し、図21は吊り金具の左側面を示す図である。図20、図21に示す吊り金具76は、上部係合部78と下部係合部82、および遠隔切離手段86を基本として構成されるものである。具体的には、上部係合部78は、いわゆる吊り環状の孔78aが開いた平板であれば良い。遠隔切離を不要とする側の係合部は、このような構成であればワイヤ等との係合が可能となるからである。例えば、孔78aに直接ワイヤを係合したり、ワイヤを係合させたシャックル94等の吊具を接続することができる。   The hanging metal fitting used in the embodiment may be in the form as shown in FIGS. 20 and 21, for example. FIG. 20 shows a front form of the hanging bracket, and FIG. 21 shows a left side surface of the hanging bracket. The hanging metal fitting 76 shown in FIGS. 20 and 21 is configured based on an upper engaging portion 78, a lower engaging portion 82, and a remote separating means 86. Specifically, the upper engaging portion 78 may be a flat plate having a so-called suspended annular hole 78a. This is because the engaging portion on the side that does not require remote disconnection can be engaged with a wire or the like with such a configuration. For example, a wire can be directly engaged with the hole 78a, or a hanging tool such as a shackle 94 with which the wire is engaged can be connected.

下部係合部82は、止めピン84を挿通させる貫通孔82aを設けた一対の平行板と、この平行板に挿通される止めピン84とを有する。係合対象物(例えば水中航走体40の先端に設けられた係合部56(吊り環))を対を成す平行板間に介入させ、その後に止めピン84を挿通させることで、係合対象物の抜け止めが図れ、係合対象物との係合が達成される。   The lower engaging portion 82 has a pair of parallel plates provided with a through hole 82a through which the stop pin 84 is inserted, and a stop pin 84 inserted through the parallel plate. An engagement object (for example, an engagement portion 56 (suspending ring) provided at the tip of the underwater vehicle 40) is interposed between a pair of parallel plates, and then a stop pin 84 is inserted to engage the object. The object can be prevented from coming off, and the engagement with the engagement object is achieved.

遠隔切離手段86は、例えばエアシリンダなどであれば良い。遠隔切離手段86は、上部係合部78と下部係合部82の間に介在されるベース80を基点として設けられたブラケット92にシリンダ部88を固定し、ロッド部90の先端に止めピン84を接続する構成とすれば良い。このような構成の遠隔切離手段86は、ロッド部90が伸張した状態では止めピン84が平行板である下部係合部82の貫通孔82aに挿通され、ロッド部90が短縮した状態では止めピン84が下部係合部82の貫通孔82aから抜き取られる状態となるように取り付け位置を調整する。このような構成の吊り金具76を用いれば、シリンダ部88に対するエアの供給により、遠隔操作にて係合状態の解除が可能となる。   The remote disconnecting means 86 may be an air cylinder, for example. The remote disconnecting means 86 fixes a cylinder portion 88 to a bracket 92 provided with a base 80 interposed between the upper engaging portion 78 and the lower engaging portion 82 as a base point, and a stop pin at the tip of the rod portion 90. 84 may be configured to be connected. In the remote separating means 86 having such a configuration, the stop pin 84 is inserted into the through hole 82a of the lower engaging portion 82 which is a parallel plate when the rod portion 90 is extended, and is stopped when the rod portion 90 is shortened. The mounting position is adjusted so that the pin 84 is pulled out from the through hole 82a of the lower engaging portion 82. If the suspension fitting 76 having such a configuration is used, the engagement state can be released by remote operation by supplying air to the cylinder portion 88.

水中航走体40の先端にワイヤを接続した後、稼動台座20における載置台22を傾斜させ、水中航走体40を垂直姿勢とさせる。この際、水中航走体40は載置台22に対してラッシングしておく。これにより、載置台22の起伏状態の変化に伴って水中航走体40が載置台22から落下するといった虞が無くなるからである。水中航走体40の姿勢を垂直状態とした後、巻上げ手段24によりワイヤを巻き取り、水中航走体40と係合されたワイヤに張力をかけ、この状態で水中航走体40のラッシングを解除する。ワイヤに張力が掛かった状態であれば、ラッシングを解除した場合であっても水中航走体40が載置台22からずれ落ちる虞が無いからである(地切り工程:S230)。   After connecting a wire to the tip of the underwater vehicle 40, the mounting table 22 on the working base 20 is tilted to bring the underwater vehicle 40 into a vertical posture. At this time, the underwater vehicle 40 is lashed with respect to the mounting table 22. This is because there is no possibility that the underwater vehicle 40 falls from the mounting table 22 in accordance with the change in the undulation state of the mounting table 22. After making the posture of the underwater vehicle 40 vertical, the wire is wound up by the winding means 24, tension is applied to the wire engaged with the underwater vehicle 40, and lashing of the underwater vehicle 40 is performed in this state. To release. This is because if the wire is in a tensioned state, there is no possibility that the underwater vehicle 40 will fall off the mounting table 22 even when lashing is released (ground cutting step: S230).

水中航走体40のラッシングを解除した後、巻上げ手段24によりワイヤをさらに巻き上げ、水中航走体40を保持金具60により保持する。これにより、実質的に水中航走体40の吊り代が無くなるため、吊り上げ状態の水中航走体40の揺動を抑制することができる。このため、着水作業を実施するにあたって、複数の振れ止め索を用いて水中航走体40の揺動を抑えるといった作業が不要となり、着水作業時における甲板作業の労力を軽減することができる。また、揺動が少ないため、着水作業を行うにあたって、海象の影響を受け難い(水中航走体吊り上げ工程:S240)。   After the lashing of the underwater vehicle 40 is released, the wire is further wound up by the winding means 24, and the underwater vehicle 40 is held by the holding metal 60. Thereby, since the suspension allowance of the underwater vehicle 40 is substantially eliminated, swinging of the underwater vehicle 40 in the lifted state can be suppressed. For this reason, when performing a landing operation, the operation | work which suppresses rocking | fluctuation of the underwater vehicle 40 using a plurality of steadying ropes becomes unnecessary, and the work of the deck work at the time of landing operation can be reduced. . Moreover, since there is little rocking | fluctuation, it is hard to receive the influence of a sea state in performing a landing work (underwater vehicle body lifting process: S240).

水中航走体40を吊り上げた後、ローテータにより水中航走体40を長手方向中心軸回りに回動させ、姿勢の変更を行う。姿勢の変更は、例えば、海上側に艇体42の底部が向くようにすれば良い(姿勢制御工程S250)。水中航走体40の姿勢制御を行った後、揚苛手段12のフレーム14を海上側へ振り出す。この際、フレーム14の振り出しに応じて巻上げ手段24におけるワイヤの張力を一定に保つように、巻上げ手段24におけるワイヤの巻き取り量、あるいは送り出し量を調整する(振り出し工程:S260)。   After the underwater vehicle 40 is lifted, the underwater vehicle 40 is rotated around the central axis in the longitudinal direction by a rotator to change the posture. The posture may be changed, for example, such that the bottom of the hull 42 faces the sea side (posture control step S250). After controlling the attitude of the underwater vehicle 40, the frame 14 of the lifting means 12 is swung out to the sea side. At this time, the winding amount or feeding amount of the wire in the winding means 24 is adjusted so as to keep the tension of the wire in the winding means 24 constant according to the swinging out of the frame 14 (Pumping step: S260).

揚苛手段12のフレーム14を海上側へ振り出した後、巻上げ手段24のワイヤを送り出し、水中航走体40を着水させる。水中航走体40を着水させた後、ワイヤと水中航走体40を係合している吊り金具76の遠隔切離手段86を解除し、ワイヤと水中航走体40との係合状態を解除する。本実施形態の場合、係合状態の解除は、シリンダ部88にエアを投入し、ロッド部90を短縮させて止めピン84を下部係合部82を構成する平行板から抜きとることで成される。このようにして係合状態を解除することによれば、ワイヤと水中航走体40の係合状態の解除を運用支援船10上から実施することができるため、ダイバー等による海中作業が不要となり、海象の影響を受け難くなる(着水完了:S270)。その他の作用、効果については、上述した揚収作業における効果と同様である。   After the frame 14 of the lifting means 12 is swung out to the sea side, the wire of the winding means 24 is sent out and the underwater vehicle 40 is landed. After the underwater vehicle 40 is landed, the remote disconnecting means 86 of the suspension fitting 76 that engages the wire and the underwater vehicle 40 is released, and the wire and the underwater vehicle 40 are engaged. Is released. In the case of this embodiment, the engagement state is released by introducing air into the cylinder portion 88, shortening the rod portion 90, and pulling the stop pin 84 from the parallel plate constituting the lower engagement portion 82. The By releasing the engagement state in this way, the engagement state between the wire and the underwater vehicle 40 can be released from the operation support ship 10, so that underwater work by a diver or the like becomes unnecessary. It becomes difficult to be affected by sea conditions (completion of landing: S270). Other actions and effects are the same as those in the above-described harvesting operation.

上記実施形態ではいずれも、揚苛手段12としてAフレーム構造のクレーンを用いる旨記載した。しかしながら本発明に係る水中航走体の着水揚収方法は、使用するクレーンの形態を限定するものでは無い。例えば揚苛手段12の構造をデッキクレーンなどとした場合でも、本発明を実施することができる。クレーン形態の違いは、海上への振り出しや運用支援船10への振り込み形態の違いであり、このような相違があった場合であっても、稼動台座20の載置台22の傾きを利用すれば、垂直状態で吊り上げられた水中航走体40を接地させることができると共に、垂直状態に吊り上げるように地切りすることができるからである。   In any of the above embodiments, it has been described that a crane having an A frame structure is used as the lifting means 12. However, the landing method of the underwater vehicle according to the present invention does not limit the form of the crane to be used. For example, the present invention can be carried out even when the structure of the lifting means 12 is a deck crane or the like. The difference in the crane form is the difference in the form of floating to the sea and the form of transfer to the operation support ship 10, and even if there is such a difference, if the inclination of the mounting table 22 of the operating base 20 is used. This is because the underwater vehicle 40 suspended in the vertical state can be grounded and can be grounded so as to be lifted in the vertical state.

また、上記実施形態では、保持金具60を揚苛手段12におけるペンダントフレーム16のベース16aに安定支持させるため、ベース16aに緩衝手段58を設ける旨記載した。しかしながら緩衝手段58は、保持金具60における係合部62に設けるようにしても良い。設置対象を逆転させた場合であっても、吊り上げ状態では同様な効果を奏することができるからである。   Moreover, in the said embodiment, in order to carry out the stable support of the holding metal fitting 60 to the base 16a of the pendant frame 16 in the fouling means 12, it stated that the buffer means 58 was provided in the base 16a. However, the buffering means 58 may be provided in the engaging portion 62 of the holding metal fitting 60. This is because even if the installation target is reversed, the same effect can be obtained in the suspended state.

10………運用支援船、12………揚苛手段、14………フレーム、16………ペンダントフレーム、16a………ベース、18………第1ワイヤ、20………稼動台座、22………載置台、24………巻上げ手段、40………水中航走体、42………艇体、44………主翼、46………尾翼、48………垂直尾翼、48a………アンテナ、50………スクリュー、52………ブイ、54………揚収索、56………係合部、58………緩衝手段、60………保持金具、62………係合部、62a………平板、62a1………貫通孔、62b………当接板、64………収容部、64a………フレーム、64b………シーブ、66………当接部、66a………円形ベース、66b………緩衝材、70………スリングロープ、72………サンドレット、76………吊り金具、78………上部係合部、78a………孔、80………ベース、82………下部係合部、82a………貫通孔、84………止めピン、86………遠隔切離手段、88………シリンダ部、90………ロッド部、92………ブラケット、94………シャックル。

10 ......... Operation support vessel, 12 ......... Failing means, 14 ......... Frame, 16 ......... Pendant frame, 16a ......... Base, 18 ......... First wire, 20 ......... Operating base, 22 ......... Mounting table, 24 ......... Winding means, 40 ......... Underwater vehicle, 42 ......... Hull, 44 ......... Main wing, 46 ......... Tail, 48 ......... Vertical tail, 48a ......... Antenna, 50 ... ... Screw, 52 ... ... Buoy, 54 ... ... Lifting cable, 56 ... ... Engagement part, 58 ... ... Buffering means, 60 ... ... Holding bracket, 62 ... ... engaging part, 62a ... flat plate, 62a1 ... through hole, 62b ... contact plate, 64 ... accommodating part, 64a ... frame, 64b ... sheave, 66 ... Contact part, 66a ............ Circular base, 66b ......... Cushioning material, 70 ......... Sling rope, 72 ......... Sandless , 76 ......... Suspension fitting, 78 ... ... Upper engaging part, 78a ... ... Hole, 80 ... ... Base, 82 ... ... Lower engaging part, 82a ... ... Through hole, 84 ... ... Stop Pin, 86 ......... Remote disconnecting means, 88 ......... Cylinder, 90 ......... Rod, 92 ......... Bracket, 94 ......... Shackle.

Claims (11)

揚荷手段を備えた運用支援船を用いて、水中航走体を運用支援船から海上へ着水させるため、または海上から運用支援船へ揚収するための方法であって、
前記水中航走体の長手方向端部を保持して安定させるための保持金具を前記揚荷手段に支持させる工程と、
前記水中航走体の前記端部を前記保持金具に保持させて前記水中航走体を垂直に吊り上げる工程と、
前記水中航走体を長手方向中心軸に沿った回転軸回りに回動させて着水方向あるいは荷役方向に着水面あるいは接地面を向ける工程と、
前記揚荷手段を介して前記水中航走体を着水あるいは揚収する工程と、
を有することを特徴とする水中航走体の着水揚収方法。
A method for landing an underwater vehicle from an operation support vessel to the sea using an operation support vessel equipped with a means of unloading,
Supporting the holding means for holding and stabilizing the longitudinal end of the underwater vehicle in the unloading means;
Lifting the underwater vehicle vertically by holding the end of the underwater vehicle in the holding bracket; and
Rotating the underwater vehicle around a rotation axis along a longitudinal central axis and directing a landing surface or a ground contact surface in a landing direction or a cargo handling direction;
Landing or unloading the underwater vehicle via the unloading means;
A landing method for landing an underwater vehicle.
前記水中航走体を海上から運用支援船へ揚収する場合において、
前記水中航走体を吊り上げる工程の前に前記水中航走体における保持側端部から揚収索付ブイを放出させる工程と、
前記運用支援船上から前記揚収索付ブイを回収する工程と、
前記保持金具を介して揚収索を巻上げ手段に接続する工程を有することを特徴とする請求項1に記載の水中航走体の着水揚収方法。
In the case of picking up the underwater vehicle from the sea to the operation support ship,
Releasing the buoy with a lifting rope from the holding side end of the underwater vehicle before the step of lifting the underwater vehicle; and
Collecting the buoy with a lifting line from the operational support vessel;
2. The landing method for landing an underwater vehicle according to claim 1, further comprising a step of connecting a lifting line to the winding means via the holding metal fitting.
前記揚荷手段としてAフレーム構造のクレーンを用い、
前記クレーンのフレーム間にスリングロープを張り渡す工程を有し、
前記水中航走体を揚収する工程において前記クレーンを前記運用支援船側に振り込む際に前記スリングロープによって前記水中航走体を受け止めることを特徴とする請求項2に記載の水中航走体の着水揚収方法。
A crane with an A-frame structure is used as the unloading means,
Having a step of stretching a sling rope between the frames of the crane,
The landing of the underwater vehicle according to claim 2, wherein the underwater vehicle is received by the sling rope when the crane is transferred to the operation support ship in the step of picking up the underwater vehicle. Landing method.
前記水中航走体を前記運用支援船から海上へ着水させる場合において、
前記水中航走体を吊り上げる工程の前に前記水中航走体における保持側端部に着水索を接続する工程を有し、
前記水中航走体を着水させる工程の後に前記着水索を遠隔操作にて前記水中航走体から切り離す工程とを有することを特徴とする請求項1に記載の水中航走体の着水揚収方法。
When landing the underwater vehicle from the operation support vessel to the sea,
Having a step of connecting a landing line to a holding side end of the underwater vehicle before the step of lifting the underwater vehicle,
2. The landing of the underwater vehicle according to claim 1, further comprising the step of remotely detaching the landing line from the underwater vehicle after the step of landing the underwater vehicle. Lifting method.
前記運用支援船に、前記水中航走体を載置する載置台を有する稼動台座を備え、
前記水中航走体を前記運用支援船から吊り上げる際、あるいは前記水中航走体を前記運用支援船に揚収する際に、前記載置台を前記水中航走体の傾斜方向へ傾けることを特徴とする請求項1乃至4のいずれか1項に記載の水中航走体の着水揚収方法。
The operation support ship includes an operating pedestal having a mounting table for mounting the underwater vehicle.
When the underwater vehicle is lifted from the operation support vessel, or when the underwater vehicle is lifted to the operation support vessel, the mounting table is tilted in an inclination direction of the underwater vehicle. The landing method of the underwater vehicle according to any one of claims 1 to 4.
請求項1乃至5のいずれか1項に記載の水中航走体の着水揚収方法に用いられる保持金具であって、
運用支援船に備えられた揚荷手段の吊り上げワイヤを係合する係合部と、
水中航走体の保持側端部の一部を収容する収容部と、
水中航走体に当接して吊り上げ状態を安定させる当接部と有することを特徴とする保持金具。
A holding bracket used in the landing method for landing an underwater vehicle according to any one of claims 1 to 5,
An engaging portion for engaging a lifting wire of a lifting means provided in the operation support ship;
An accommodating portion for accommodating a part of the holding side end portion of the underwater vehicle,
A holding bracket having an abutting portion that abuts an underwater vehicle and stabilizes the suspended state.
前記当接部には、緩衝材を設けたことを特徴とする請求項6に記載の保持金具。   The holding metal fitting according to claim 6, wherein the abutting portion is provided with a cushioning material. 前記収容部内に、前記水中航走体に接続する着水索、または前記水中航走体から放出された揚収索を掛け回すシーブを設け、
前記収容部は、少なくとも前記着水索または前記揚収索を外部に引き出すことが可能なフレーム構造としたことを特徴とする請求項6または7に記載の保持金具。
In the housing portion, a landing line connected to the underwater vehicle, or a sheave that hangs a lifting line released from the underwater vehicle,
The holding bracket according to claim 6 or 7, wherein the housing portion has a frame structure capable of pulling out at least the landing line or the lifting line.
保持した前記水中航走体を長手方向中心線回りに回転させることを可能とするローテータを備えたことを特徴とする請求項6乃至8のいずれか1項に記載の保持金具。   The holding bracket according to any one of claims 6 to 8, further comprising a rotator that enables the held underwater vehicle to be rotated about a longitudinal center line. 前記ローテータは、前記当接部に設けることを特徴とする請求項9に記載の保持金具。   The holding metal fitting according to claim 9, wherein the rotator is provided at the contact portion. 前記係合部に、前記ワイヤによって吊り上げられた後に前記揚荷手段に安定支持させるための緩衝手段を備えたことを特徴とする請求項6乃至10のいずれか1項に記載の保持金具。   The holding metal fitting according to any one of claims 6 to 10, wherein the engaging portion includes a buffering means for stably supporting the lifting means after being lifted by the wire.
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