JP2001001985A - Propeller observing device - Google Patents
Propeller observing deviceInfo
- Publication number
- JP2001001985A JP2001001985A JP11169860A JP16986099A JP2001001985A JP 2001001985 A JP2001001985 A JP 2001001985A JP 11169860 A JP11169860 A JP 11169860A JP 16986099 A JP16986099 A JP 16986099A JP 2001001985 A JP2001001985 A JP 2001001985A
- Authority
- JP
- Japan
- Prior art keywords
- support
- hinge
- propeller
- observation
- guide tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Landscapes
- Investigating Materials By The Use Of Optical Means Adapted For Particular Applications (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、船舶航走時にプ
ロペラ表面に発生するキャビテ−ションの発生状況を観
察するプロペラの観察装置に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a propeller observation device for observing the occurrence of cavitation generated on the surface of a propeller when a ship is running.
【０００２】[0002]
【従来の技術】水が高速で金属表面を流れる場合、大気
圧よりも低い圧力と高い圧力が繰り返し生じる部分がで
き、金属表面で気泡の生成、崩壊が起こる。この現象は
キャビテ−ションと呼ばれているが、キャビテ−ション
が発生すると、金属表面が潰食（キャビテ−ションエロ
−ジョンと呼ばれる）される。2. Description of the Related Art When water flows over a metal surface at a high speed, a portion where a pressure lower than the atmospheric pressure and a pressure higher than the atmospheric pressure are repeatedly generated is formed, and bubbles are generated and collapsed on the metal surface. This phenomenon is called cavitation. When cavitation occurs, the metal surface is eroded (called cavitation erosion).
【０００３】船舶において、このようなキャビテ−ショ
ンが発生するのは、外板、プロペラ、舵等をはじめ、高
速流水に接する部分である。特に、プロペラ表面におい
てキャビテ−ションが発生すると、プロペラ表面が潰食
され、船舶を推進する推進力が低下するので、航走中の
プロペラを観察して、キャビテ−ションが発生している
か否かを判断するのは、重要なことである。[0003] In a ship, such cavitation occurs in a portion in contact with high-speed flowing water, such as an outer plate, a propeller, a rudder, and the like. In particular, when cavitation is generated on the propeller surface, the propeller surface is eroded and the propulsive force for propelling the ship is reduced. It is important to judge.
【０００４】従来、船舶の航走状態において、プロペラ
表面にキャビテ−ションが発生しているか否かの観察を
行う場合には、船底部分にガラス張りの観察孔を設け
て、目視で観察したり、水中カメラおよび照明等を船底
にボルト等で固定し、プロペラ部分を撮影した後、撮影
したフィルムを現像して、その画像を見るようにしてい
る。[0004] Conventionally, when observing whether or not cavitation has occurred on the surface of a propeller while a ship is in a running state, an observation hole made of glass is provided at the bottom of the ship to visually observe the cavitation. An underwater camera, lighting, and the like are fixed to the bottom of the ship with bolts and the like, and after photographing the propeller portion, the photographed film is developed to view the image.
【０００５】[0005]
【発明が解決しようとする課題】しかしながら、上述し
た従来の船舶のプロペラ観察方法には、次のような問題
点がある。However, the above-mentioned conventional method for observing a propeller of a ship has the following problems.
【０００６】観察孔を設けるために船体に孔を開けた
り、水中カメラ固定用のブラケットを船底に設置したり
するので、船体の強度が低下する。プロペラを観察する
際は、視野の方向や大きさが自由に設定できないので、
最適な状態での観察ができない。また、この装置の取り
付けのためには、ドックに入る等大がかりな工事を必要
とする。[0006] Since a hole is formed in the hull to provide an observation hole, and a bracket for fixing the underwater camera is installed on the bottom of the hull, the strength of the hull is reduced. When observing the propeller, the direction and size of the field of view cannot be set freely.
Observation in an optimal state is not possible. In addition, installation of this device requires large-scale work such as entering a dock.
【０００７】その他、就航スケジュ−ルに制約されて、
随時観察することができないという問題もある。もちろ
ん、就航中に船底に設けたガラス窓から覗くことはでき
るが、目視であるので観察結果を詳細に解析することが
できない。[0007] In addition, being restricted by the service schedule,
There is also a problem that it cannot be observed at any time. Of course, it is possible to look through the glass window provided at the bottom of the ship while in service, but the observation result cannot be analyzed in detail because it is visual.
【０００８】この発明は、従来技術の上述のような問題
点を解消するためになされたものであり、船体強度を低
下する工事を必要としないとともに、就航時においても
随時観察でき、かつ最適な状態での観察が可能なプロペ
ラ観察装置を提供することを目的としている。The present invention has been made in order to solve the above-mentioned problems of the prior art, and does not require construction for lowering the strength of the hull, and can be observed at any time even during service, and is optimally performed. An object of the present invention is to provide a propeller observation device capable of observation in a state.
【０００９】[0009]
【課題を解決するための手段】この発明に係るプロペラ
観察装置は、装置全体を支持する支持台と、該支持台か
ら水面上に突出した部材にヒンジを介して垂直面内およ
び水平面内で回動可能に取り付けられたガイド管と、該
ガイド管に軸方向に移動可能に挿入された観察用器材を
支持する支持管と、該支持管の前記ヒンジよりも先端の
部分を舷側に引き寄せるための締込部材と、前記ガイド
管には前記ヒンジとは別のヒンジを介して先端部を回動
可能に取り付けられ、前記支持台には軸方向に移動可能
に取り付けられた操作棒と、該操作棒を水平方向に移動
させる移動手段とから構成されるものである。A propeller observation apparatus according to the present invention comprises a support for supporting the entire apparatus, and a member protruding above the water surface from the support and rotating via hinges in a vertical plane and a horizontal plane. A guide tube movably mounted, a support tube for supporting an observation instrument inserted movably in the axial direction into the guide tube, and a portion of the support tube that is closer to the tip than the hinge is drawn to the side of the ship. A tightening member, an operation rod attached to the guide tube via a hinge different from the hinge so as to be rotatable, and an operation rod attached to the support base so as to be movable in an axial direction; Moving means for moving the bar in the horizontal direction.
【００１０】この発明に係るプロペラ観察装置により、
プロペラを観察するときには、次のようにして行なう。With the propeller observation device according to the present invention,
Observation of the propeller is performed as follows.
【００１１】このプロペラ観察装置は、随時観測ができ
るように舷側に配置しておく。そして、観測を行なって
いないときには、航走のじゃまにならないように、支持
棒を支持台からきり離してガイド管を回動させ、支持管
を海中から甲板上に引き上げ、支持管を舷側に沿った状
態で待機させる。The propeller observation device is arranged on the side of the ship so that observation can be performed at any time. When not observing, the support rod is separated from the support base and the guide tube is rotated so as not to hinder the cruise, and the support tube is pulled up from the sea onto the deck, and the support tube is moved along the side of the ship. In a standby state.
【００１２】観測を行なうときには、支持管の先端に観
察用の水中カメラ（テレビカメラ）、照明用のストロ
ボ、必要に応じてマイク等を取り付け、ガイド管を回動
させて、甲板上の支持管を海中に移動させる。At the time of observation, an underwater camera (television camera) for observation, a strobe for illumination, a microphone and the like, if necessary, are attached to the tip of the support tube, and the guide tube is rotated to support the support tube on the deck. To the sea.
【００１３】水中カメラの画像は、支持管の中を通した
ケ−ブルにより、船上に配置したビデオデッキに送ら
れ、モニタ−に写し出すことができるので、この画像を
見ながら、支持管を上下させて、水中カメラを最適な観
察位置に設定する。[0013] The image of the underwater camera is sent to a video deck arranged on the ship by a cable passing through the support tube and can be displayed on a monitor. Then, set the underwater camera to the optimal observation position.
【００１４】水中カメラの位置が決まったら、支持管が
上下方向に移動しないように、支持管をガイド管に固定
するとともに、締込部材によりガイド管を舷側に引き寄
せ、支持管の下方部分を舷側に接触させるとともに、他
の締込部材で支持棒を海側に移動させた上で支持棒を支
持台上に固定して、支持管のふらつきをなくした上で、
観察を開始する。When the position of the underwater camera is determined, the support tube is fixed to the guide tube so that the support tube does not move in the vertical direction, and the guide tube is pulled to the side of the ship by the fastening member, and the lower part of the support tube is moved to the side of the ship. While moving the support rod to the sea side with another tightening member and fixing the support rod on the support base to eliminate the wobble of the support pipe,
Start observation.
【００１５】[0015]
【発明の実施の形態】この発明の実施の形態を、図面を
参照して説明する。Embodiments of the present invention will be described with reference to the drawings.
【００１６】図１〜図３は本発明の実施の形態の１例を
示すものであり、図１はプロペラ観察装置の正面図、図
２は本発明の実施の形態のプロペラ観察装置の側面図、
図３は図１のＡ部詳細図である。1 to 3 show an embodiment of the present invention. FIG. 1 is a front view of a propeller observation device, and FIG. 2 is a side view of the propeller observation device of the embodiment of the present invention. ,
FIG. 3 is a detailed view of a portion A in FIG.
【００１７】このプロペラ観察装置において、支持台１
は、このプロペラ観察装置全体を支持しており、船体２
１の舷側２１ａに近い甲板２１ｂ上に設けられている。
支持台１には、舷側２１ａから海２２側に突出した部分
（後述する水平部材１４）があり、そこに、ヒンジ２を
介して垂直面内で回動可能にガイド管３が取り付けられ
ている。ガイド管３には、支持管４が軸方向に移動可能
に挿入され、その先端に、水中カメラ２３や水中ライト
２４、必要に応じてマイク等の観察用器材が取り付けら
れている。In this propeller observation apparatus, the support table 1
Supports the entire propeller observation device, and the hull 2
It is provided on a deck 21b near one side 21a.
The support base 1 has a portion (horizontal member 14 described later) projecting from the side of the ship 21a to the sea 22 side, and the guide tube 3 is attached to the support member 1 via the hinge 2 so as to be rotatable in a vertical plane. . A support tube 4 is inserted into the guide tube 3 so as to be movable in the axial direction, and an underwater camera 23, an underwater light 24, and an observation device such as a microphone as necessary are attached to the distal end thereof.
【００１８】ガイド管３のヒンジ２よりも水面に近い位
置には、支持管４の先端部分を舷側２１ａ側に引き寄せ
るために、一端をガイド管３に他端を支持台１に固着し
た締込部材５が設けられている。At a position closer to the water surface than the hinge 2 of the guide tube 3, one end is fixed to the guide tube 3 and the other end is fixed to the support base 1 in order to draw the distal end portion of the support tube 4 toward the side of the side 21 a. A member 5 is provided.
【００１９】また、ガイド管３には、ヒンジ２から離れ
た位置に別のヒンジ６を介して、操作棒７が回動可能に
取り付けられている。この操作棒７は、支持台１に軸方
向に移動可能に取り付けられ、操作棒７を支持台１に設
けた締込部材８を用いて海２２側に移動させることによ
り、支持管４の上端を一定位置に固定することができ
る。An operation rod 7 is rotatably attached to the guide tube 3 at a position separated from the hinge 2 via another hinge 6. The operation rod 7 is attached to the support base 1 so as to be movable in the axial direction, and the operation rod 7 is moved to the sea 22 side by using the tightening member 8 provided on the support base 1, whereby the upper end of the support pipe 4 is moved. Can be fixed at a fixed position.
【００２０】このプロペラ観察装置を詳述すると、支持
台１は、図４の説明図に示すような構成となっている。
図４において、（ａ）は支持台の平面図、（ｂ）は支持
台の側面図、（ｃ）は（ａ）のＢ−Ｂ矢視図であるが、
支持台１は、支持台１を甲板２１ｂ上に固定するための
略平面状の固定部材１１と、固定部材１１から舷側２１
ａ側に向かって逆Ｌ字形に形成さた側部固定部材１２
と、側部固定部材１２の水平面上に垂直に設けた前記操
作棒７を固定するための門形支持部材１３と、前記ガイ
ド管３の下方部分とヒンジ２を介して回動可能に接続し
ている水平部材１４とから構成されている。The propeller observation device will be described in detail. The support table 1 has a structure as shown in an explanatory view of FIG.
In FIG. 4, (a) is a plan view of the support, (b) is a side view of the support, and (c) is a view taken along the line BB of (a).
The support table 1 includes a substantially planar fixing member 11 for fixing the support table 1 on the deck 21b, and a side 21
side fixing member 12 formed in an inverted L-shape toward side a
A gate-shaped support member 13 for vertically fixing the operation rod 7 provided on a horizontal plane of the side fixing member 12, and a rotatably connected via a hinge 2 to a lower portion of the guide tube 3. And a horizontal member 14.
【００２１】そして、図１に示したように、固定部材１
１上には複数の重錘２５が置かれ、支持台１が動かない
ようにしている。Then, as shown in FIG.
A plurality of weights 25 are placed on 1 to keep the support 1 from moving.
【００２２】また、側部固定部材１２の水平部と甲板２
１ｂの上面および甲板２１ｂの足止め材２１ｃの間に
は、クサビ２６を打ち込み、側部固定部材１２の垂直部
を防舷材２７を介して舷側２１ａに密着させ、支持台１
を甲板２１ｂ上に固定している。The horizontal portion of the side fixing member 12 and the deck 2
A wedge 26 is driven between the upper surface of the base 1b and the footing member 21c of the deck 21b to bring the vertical portion of the side fixing member 12 into close contact with the side of the side 21a via the fender 27, and
Is fixed on the deck 21b.
【００２３】操作棒７は、前記締込部材８によって水平
方向の位置が決定した後、図４（ｃ）に示すように、門
形の支持部材１３の上面にＵボルト２８で固定されてい
る。After the horizontal position of the operating rod 7 is determined by the tightening member 8, as shown in FIG. 4C, the operating rod 7 is fixed to the upper surface of the gate-shaped support member 13 with a U-bolt 28. .
【００２４】次に、航走中にプロペラの観察を行う方法
を説明する。Next, a method of observing a propeller during traveling will be described.
【００２５】このプロペラ観察装置は、随時観測ができ
るように舷側２１ａに配置しておくので、観測を行なっ
ていないときには、航走のじゃまにならないように、ヒ
ンジ６のピンをはずして、ガイド管３をヒンジ２の回り
に回動させて、支持管４を海２２中から甲板上に引き上
げておく。Since the propeller observation device is arranged on the side of the ship 21a so that observation can be performed at any time, when the observation is not being performed, the pin of the hinge 6 is removed so as not to disturb the cruising, and the guide tube is removed. The support tube 4 is pulled up from the sea 22 onto the deck by rotating the hinge 3 around the hinge 2.
【００２６】観測を行なうときには、支持管４の先端に
水中カメラ（テレビカメラ）２３および照明用のストロ
ボ２４、必要に応じてマイク等を取り付け、ガイド管３
を回動させて、甲板２１ｂ上の支持管４を海中に移動さ
せる。At the time of observation, an underwater camera (television camera) 23, a strobe 24 for illumination, a microphone and the like, if necessary, are attached to the tip of the support tube 4, and the guide tube 3
To move the support tube 4 on the deck 21b into the sea.
【００２７】水中カメラ２３の画像は、支持管４の中を
通したケ−ブル２９により、船上に配置したモニタ−に
写し出すことができるので、この画像を見ながら、支持
管４を上下させて、水中カメラ２３のプロペラ３０に向
けた視野３１を、観察に最適な状態に設定する。The image of the underwater camera 23 can be displayed on a monitor arranged on the ship by the cable 29 passing through the support tube 4, so that the user can move the support tube 4 up and down while watching this image. The field of view 31 of the underwater camera 23 facing the propeller 30 is set to an optimal state for observation.
【００２８】水中カメラ２３の設定が決まったら、上下
方向に移動せず回転もしないように、支持管４をガイド
管３に固定する。固定方法としては、例えば、ガイド管
３に設けたボルト孔にボルトを螺合させ、ボルトをねじ
込んで、支持管４をボルトの先端で押してガイド管３の
内壁に押し付け、摩擦で固定する。When the setting of the underwater camera 23 is determined, the support tube 4 is fixed to the guide tube 3 so as not to move vertically and not rotate. As a fixing method, for example, a bolt is screwed into a bolt hole provided in the guide tube 3, the bolt is screwed in, the support tube 4 is pushed by the tip of the bolt, pressed against the inner wall of the guide tube 3, and fixed by friction.
【００２９】そして、締込部材５によりガイド管３を舷
側２１ａ側に引き寄せ、支持管４の一部分を舷側２１ａ
に接触させて、支持管４がふらつかないようにする。Then, the guide tube 3 is pulled toward the side of the ship 21a by the tightening member 5, and a part of the support tube 4 is moved to the side of the ship 21a.
To prevent the support tube 4 from wobbling.
【００３０】なお、支持管４が直接舷側２１ａに接触す
ると、疵が発生するので、支持管４と舷側２１ａの間に
緩衝材３２を挿入するとよい。When the support pipe 4 comes into direct contact with the side 21a, a flaw is generated. Therefore, it is preferable to insert a buffer material 32 between the support 4 and the side 21a.
【００３１】また、支持台１の門形の支持部材１３の上
面に、操作棒７をＵボルト２８でゆるく固定し、締込部
材８により操作棒７を海２２側に移動させ、支持管４の
上端部分がふらつかないようにして、操作棒７をＵボル
ト２８を締めて固定する。Further, the operating rod 7 is loosely fixed on the upper surface of the gate-shaped supporting member 13 of the supporting base 1 with a U-bolt 28, and the operating rod 7 is moved to the sea 22 side by the tightening member 8. The operation rod 7 is fixed by tightening the U bolt 28 so that the upper end of the control rod 7 is not shaken.
【００３２】さらには、図２に示すように、支持管４が
船体２１の航走方向に揺れないようにするために、支持
管４の両側からロ−プ３３で引っ張るようにする。Further, as shown in FIG. 2, in order to prevent the support tube 4 from swaying in the traveling direction of the hull 21, a rope 33 is pulled from both sides of the support tube 4.
【００３３】本発明のプロペラ観察装置を使用すると、
上述のようにしてプロペラの観察ができるので、航走中
のプロペラのキャビテ−ション発生状況を、早期にかつ
正確に把握でき、的確なキャビテ−ションエロ−ジョン
対策を立てることができる。When the propeller observation device of the present invention is used,
Since the observation of the propeller can be performed as described above, the cavitation occurrence state of the propeller during traveling can be quickly and accurately grasped, and an appropriate countermeasure for cavitation erosion can be taken.
【００３４】[0034]
【発明の効果】本発明により、航走時のプロペラの観察
を行うに際して、ドックに入ったり、船体強度を低下す
る工事を必要としないとともに、就航時においても随時
観察でき、かつ最適な状態での観察が可能となる。According to the present invention, when observing a propeller at the time of cruising, it is not necessary to enter a dock or to perform construction work to reduce the strength of the hull. Observation becomes possible.
【図１】本発明の実施の形態のプロペラ観察装置の正面
図である。FIG. 1 is a front view of a propeller observation device according to an embodiment of the present invention.
【図２】本発明の実施の形態のプロペラ観察装置の側面
図である。FIG. 2 is a side view of the propeller observation device according to the embodiment of the present invention.
【図３】図１のＡ部詳細図である。FIG. 3 is a detailed view of a portion A in FIG. 1;
【図４】本発明の実施の形態のプロペラ観察装置におけ
る支持台の説明図であり、（ａ）は支持台の平面図、
（ｂ）は支持台の側面図、（ｃ）は（ａ）のＢ−Ｂ矢視
図である。FIG. 4 is an explanatory view of a support in the propeller observation device according to the embodiment of the present invention, where (a) is a plan view of the support,
(B) is a side view of the support table, and (c) is a view on arrow BB of (a).
１ 支持台 ２ ヒンジ ３ ガイド管 ４ 支持管 ５ 締込部材 ６ ヒンジ ７ 操作棒 ８ 締込部材 １１ 固定部材 １２ 側部固定部材 １３ 支持部材 １４ 水平部材 ２１ 船体 ２１ａ 舷側 ２１ｂ 甲板 ２２ 海 ２３ 水中カメラ ２４ ストロボ ２５ 重錘 ２６ クサビ ２７ 防舷材 ２８ Ｕボルト ２９ ケ−ブル ３０ プロペラ ３１ 水中カメラの視野 ３２ 緩衝材 ３３ ロ−プ DESCRIPTION OF SYMBOLS 1 Support stand 2 Hinge 3 Guide pipe 4 Support pipe 5 Tightening member 6 Hinge 7 Operating rod 8 Tightening member 11 Fixed member 12 Side fixing member 13 Support member 14 Horizontal member 21 Hull 21a Sideboard 21b Deck 22 Sea 23 Underwater camera 24 Strobe 25 Weight 26 Wedge 27 Fender 28 U-bolt 29 Cable 30 Propeller 31 Underwater camera view 32 Buffer material 33 Loop
Claims (1)
から水面上に突出した部材にヒンジを介して垂直面内お
よび水平面内で回動可能に取り付けられたガイド管と、
該ガイド管に軸方向に移動可能に挿入された観察用器材
を支持する支持管と、該支持管の前記ヒンジよりも先端
の部分を引き寄せるための締込部材と、前記ガイド管に
は前記ヒンジとは別のヒンジを介して先端部を回動可能
に取り付けられ、前記支持台には軸方向に移動可能に取
り付けられた操作棒と、該操作棒を水平方向に移動させ
る移動手段とから構成されることを特徴とするプロペラ
観察装置。1. A support for supporting the entire apparatus, a guide tube rotatably mounted in a vertical plane and a horizontal plane via a hinge to a member protruding above the water surface from the support, and
A support tube for supporting an observation device inserted in the guide tube so as to be movable in the axial direction, a fastening member for pulling a portion of the support tube at a more distal end than the hinge, and a hinge for the guide tube An operating rod, which is rotatably mounted at the distal end thereof via another hinge, is attached to the support base so as to be movable in the axial direction, and moving means for moving the operating rod in the horizontal direction. A propeller observation device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11169860A JP2001001985A (en) | 1999-06-16 | 1999-06-16 | Propeller observing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11169860A JP2001001985A (en) | 1999-06-16 | 1999-06-16 | Propeller observing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001001985A true JP2001001985A (en) | 2001-01-09 |
Family
ID=15894293
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11169860A Withdrawn JP2001001985A (en) | 1999-06-16 | 1999-06-16 | Propeller observing device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001001985A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011158773A1 (en) * | 2010-06-14 | 2011-12-22 | Morimoto Nobuyoshi | Method for recovery of oil spilled on sea surface and oil recovery vessel |
| KR101523725B1 (en) * | 2013-08-01 | 2015-05-28 | 삼성중공업 주식회사 | Ship |
| KR20160000147A (en) * | 2014-06-24 | 2016-01-04 | 삼성중공업 주식회사 | A ship for reducing vibromotive force |
-
1999
- 1999-06-16 JP JP11169860A patent/JP2001001985A/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011158773A1 (en) * | 2010-06-14 | 2011-12-22 | Morimoto Nobuyoshi | Method for recovery of oil spilled on sea surface and oil recovery vessel |
| KR101523725B1 (en) * | 2013-08-01 | 2015-05-28 | 삼성중공업 주식회사 | Ship |
| KR20160000147A (en) * | 2014-06-24 | 2016-01-04 | 삼성중공업 주식회사 | A ship for reducing vibromotive force |
| KR101616992B1 (en) | 2014-06-24 | 2016-04-28 | 삼성중공업 주식회사 | A ship for reducing vibromotive force |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP6074017B1 (en) | Pile driving system | |
| JP6475377B1 (en) | Inspection system for inspecting chimney interior and method for inspecting chimney interior | |
| WO2016190761A1 (en) | Unit for monitoring underwater objects | |
| JP2001001985A (en) | Propeller observing device | |
| NO159365B (en) | DEVICE FOR PERFORMING WORK UNDER WATER. | |
| US20190263480A1 (en) | Bow-mounted detecting system | |
| JPH10295018A (en) | Inspection camera for overhead wire | |
| CN208216945U (en) | A kind of aquatic measurement ship with shock-damping structure | |
| JP2007112167A (en) | Splashdown/towing method of underwater towing body, splashdown lifting and storing device and vessel furnished with splashdown lifting and storing device | |
| CN115628977A (en) | Detection apparatus for processing of optic fibre data line is used | |
| CN211716184U (en) | Integral installation device of ocean detector | |
| KR101908439B1 (en) | Anti―shake device of davit for RIB | |
| JP2000358175A (en) | Underwater observing device | |
| US10246168B1 (en) | Wake boat tow rope management system | |
| CN1108950C (en) | Central hauling pool | |
| JP4427293B2 (en) | Underwater structure imaging apparatus and structure inspection method in reactor vessel | |
| CN118050943A (en) | Outboard plate observation device | |
| CN212195832U (en) | Five-degree-of-freedom underwater ship body towed object scanning facility capable of being rapidly arranged | |
| CN216122692U (en) | Elevator video monitoring device | |
| JP2009126372A (en) | Rope guide device in tugboat | |
| CN219107507U (en) | Ship anchor observation system and ship | |
| JP2897962B2 (en) | Yacht sail operation support method and apparatus | |
| CN216978272U (en) | Flight detector for gas pipeline | |
| JP2001248144A (en) | Drain driving barge and drain member driving method by drain driving barge | |
| JP3993410B2 (en) | Equipment suspension and lifting equipment for ships |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| A300 | Withdrawal of application because of no request for examination |
Free format text: JAPANESE INTERMEDIATE CODE: A300 Effective date: 20060905 |