JPH02155898A - Speed reduction steering device for ship - Google Patents
Speed reduction steering device for shipInfo
- Publication number
- JPH02155898A JPH02155898A JP30590788A JP30590788A JPH02155898A JP H02155898 A JPH02155898 A JP H02155898A JP 30590788 A JP30590788 A JP 30590788A JP 30590788 A JP30590788 A JP 30590788A JP H02155898 A JPH02155898 A JP H02155898A
- Authority
- JP
- Japan
- Prior art keywords
- ship
- speed reduction
- deceleration
- turning performance
- reduction plates
- 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.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 230000001133 acceleration Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003643 water by type Substances 0.000 description 1
Landscapes
- Non-Deflectable Wheels, Steering Of Trailers, Or Other Steering (AREA)
Abstract
Description
【発明の詳細な説明】 (産業上の利用分野) 本発明は船舶の減速操舵装置に関するものである。[Detailed description of the invention] (Industrial application field) The present invention relates to a deceleration steering device for a ship.
(従来技術) 船舶は港湾域に於ては良好な操縦性能力が要求される。(Conventional technology) Ships are required to have good maneuverability in port areas.
また衝突を回避するため、減速・停止性能の良いことも
必要である。減速停止を行うには、推進器を停止あるい
は後進の操作を行うが、船舶はすぐに止まらず、船の長
さの5〜10倍程度行き過ぎて停止する。また、このよ
うな海域では水深が浅くなると操縦性能も低下する。即
ち、第7図に示す如く水深が浅くなると、点線で示すよ
うに旋回性能が低下する。It is also necessary to have good deceleration and stopping performance to avoid collisions. To decelerate to a stop, the propulsion device is stopped or reversed, but the ship does not stop immediately and stops after traveling about 5 to 10 times the length of the ship. In addition, in such sea areas, maneuverability deteriorates as the water depth becomes shallower. That is, as shown in FIG. 7, when the water depth becomes shallow, the turning performance deteriorates as shown by the dotted line.
さて船舶の減速補助装置として、次のようなものがしら
れている。The following types of deceleration assist devices for ships are known.
1)タンカーの両舷側にパラシューh aを取付けたも
の(第8図(a))。1) A tanker with parachutes ha attached to both sides (Figure 8 (a)).
2)タンカーの船尾部にブレーキフラップbを設けたも
の(第8図(b))。2) A tanker with a brake flap b installed at the stern (Fig. 8(b)).
3)タンカー船首部に吸水ダクl−cを設けたもの(第
8図(C))。3) A tanker with a water absorption duct LC installed in the bow (Fig. 8(C)).
ところが、前進時の操縦性、特に旋回性能を改善する目
的で、減速補助装置が取り上げられた例は未だない。However, there has not yet been an example in which a deceleration assist device has been used for the purpose of improving maneuverability during forward movement, especially turning performance.
(発明により解決しようとする課題)
=2
従来技術に鑑み、船舶の停止性能の向上を図ると共に、
前進時における旋回性能をも向上可能な装置を提供する
ことを目的とする。(Problem to be solved by the invention) =2 In view of the conventional technology, while aiming to improve the stopping performance of ships,
It is an object of the present invention to provide a device that can also improve turning performance when moving forward.
(発明による課題の解決手段)
舵を推進機の後方に配置した型式の船舶に於て、両舷の
船側に油圧装置により垂直横方向に出入可能な減速板を
設けた。(Means for Solving the Problems by the Invention) In a type of ship in which the rudder is placed behind the propulsion machine, deceleration plates that can be moved in and out vertically and laterally by a hydraulic device are provided on both sides of the ship.
又、舵を推進機後方に配置した型式の船舶に於て、舷側
に平面形状扇形をした切欠を上下方向に設け、該切欠の
角部に減速板を蝶番結合し、該減速板を垂直張出位置と
扇形切欠部を覆う位置間を回動可能にした。In addition, in a type of ship in which the rudder is placed behind the propulsion unit, a notch with a fan-shaped planar shape is provided in the vertical direction on the side of the ship, a reduction plate is hinged to the corner of the notch, and the reduction plate is vertically stretched. It is possible to rotate between the protruding position and the position covering the fan-shaped notch.
(第1実施例)
第1図で、1は船舶Sの両舷に設けた減速板で、舷側か
ら垂直側方に出入り可能である。(First Embodiment) In FIG. 1, reference numeral 1 denotes a speed reduction plate provided on both sides of a ship S, which can be entered and exited vertically from the side.
減速板1は舷側に垂直方向に設けた溝2内を出入可能で
あるが、このとき溝2の両側と下面に設けたローラ3・
・・によってスムーズに出入りできるようになっている
。4は溝2の奥に設けた油圧ピストンで、該ピストンの
伸縮によって減速板1は出入りする。The deceleration plate 1 can move in and out of a groove 2 provided vertically on the gunwale, but at this time, rollers 3 and 3 provided on both sides of the groove 2 and the bottom
...allows for smooth entry and exit. Reference numeral 4 denotes a hydraulic piston provided deep in the groove 2, and the deceleration plate 1 moves in and out as the piston expands and contracts.
なお減速板1は舷側に左右に複数対設けることも勿論可
能である。Note that it is of course possible to provide a plurality of pairs of deceleration plates 1 on the left and right sides of the ship.
(作用)
1)停止・減速を行う場合
推進器の回転を低下、あるいは停止し、場合によって後
進に切り替えると共に、油圧ピストン4を作動させて両
舷の減速板1を第1図の矢印の方向に張り出す。すると
船体抵抗はこの板1によって急激に増加し、船の減速性
が強くなり、緊急停止では船の停止距離を大幅に短縮す
ることができる。(Function) 1) When stopping or decelerating, reduce or stop the rotation of the propulsion device, switch to astern if necessary, and operate the hydraulic pistons 4 to move the deceleration plates 1 on both sides in the direction of the arrow in Figure 1. overhang. Then, the hull resistance increases rapidly due to this plate 1, the deceleration of the ship becomes stronger, and the stopping distance of the ship can be significantly shortened in an emergency stop.
2)旋回性能を良くする場合
この場合、減速板1を船外へ張り出すことにより、船体
抵抗を急増させることができる。従って推進器の回転数
を変えるまでもなく、加速を老しく低下させることがで
きる。推進器の回転数は変っていないので、推進器の後
流の強さはほとんど変らない。このため舵の力は変らず
、船体の旋回抵抗は加速の2乗に比例して減小すること
になり、舵効きが(U0/U、)2倍となって旋回性能
が向上する。2) Improving turning performance In this case, by extending the speed reduction plate 1 outboard, the hull resistance can be rapidly increased. Therefore, the acceleration can be reduced over time without changing the rotational speed of the propeller. Since the rotational speed of the propeller does not change, the strength of the propeller's wake hardly changes. Therefore, the rudder force remains unchanged, and the turning resistance of the hull decreases in proportion to the square of the acceleration, which doubles the rudder effectiveness (U0/U) and improves turning performance.
Uo:減速板を作動させない時の船速
U1:減速板を作動させた時の加速
また、減速板1による船速低下を避けるために、推進器
の回転数をn。+n2に上げた場合は、船速は変らない
ので、船体の旋回抵抗は変らないが、舵の力が(n2/
no)”倍となって、やはり旋回性能が向上することに
なる。Uo: Ship speed when the deceleration plate is not activated U1: Acceleration when the deceleration plate is activated In addition, in order to avoid a reduction in ship speed due to the deceleration plate 1, the number of rotations of the propulsion device is set to n. If it is increased to +n2, the ship speed will not change, so the turning resistance of the ship will not change, but the rudder force will increase (n2/
no)", and the turning performance is also improved.
(第2実施例)
第4図で、7は船体中央部の左右舷側に上下方向に設け
た平面形状が扇形をし、上下方に設けた切欠部である。(Second Embodiment) In FIG. 4, reference numeral 7 denotes a notch provided in the vertical direction on the starboard and starboard sides of the central portion of the hull, the planar shape of which is fan-shaped.
5は減速板で、その中心部を切欠部7の角部に設けたヒ
ンジ6で回動可能に取付けられている。減速板5は油圧
ピストン8又はスチーム等の駆動装置で、第5図(a)
の如く切欠部7を水密に覆った位置と、第5図(b)の
如く垂直側方に張り出した位置との間で90°回転可能
である。9は減速板5が切欠部7を覆ったとき、舷側と
面一になるように設けた段部である。Reference numeral 5 denotes a speed reduction plate, whose center portion is rotatably attached to a hinge 6 provided at a corner of the notch 7. The deceleration plate 5 is a hydraulic piston 8 or a drive device such as steam, as shown in Fig. 5(a).
It is possible to rotate 90 degrees between a position where the notch 7 is watertightly covered as shown in FIG. Reference numeral 9 denotes a step portion provided so that when the deceleration plate 5 covers the cutout portion 7, it is flush with the gunwale side.
本実施例においても、減速板5は両側に2対以上設ける
ことも可能である。Also in this embodiment, two or more pairs of deceleration plates 5 may be provided on both sides.
1)停止・減速を行う場合
推進器の回転を低下あるいは停止もしくは後進に切り替
えると共に、両舷の減速板を第5図(a)の矢印の方向
に回転させ、減速板5を船外に張り出す。船体抵抗は、
この板5によって急激に増加し減速が強くなり、緊急停
止では船の停止距離を大幅に短縮することができる。1) When stopping or decelerating, reduce the rotation of the propulsion device, or switch to stop or reverse, rotate the deceleration plates on both sides in the direction of the arrow in Figure 5 (a), and extend the deceleration plate 5 outboard. put out. The hull resistance is
This plate 5 causes a sudden increase in deceleration, making it possible to significantly shorten the stopping distance of the ship in an emergency stop.
2)旋回性能を良くする場合
この場合も減速板5を船外に張り出す。この減速板5に
よって船体抵抗を急増させ、推進器の回転数を変えるま
でもなく、船速を著しく低下させることができる。しか
し、推進器の回転数は変っていないので、推進器の後流
の強さはほとんど変らない。このため、舵の力は変らず
、船体の旋回抵抗は船速の2乗に比例して減小すること
になり、第1実施例の場合と同様前動きが(Uo/U、
)2倍となって旋回性能が向上する。2) When improving turning performance, also in this case, the reduction plate 5 is extended outboard. The speed reduction plate 5 can rapidly increase the hull resistance and significantly reduce the ship speed without changing the rotational speed of the propulsion device. However, since the rotational speed of the thruster remains unchanged, the strength of the wake of the thruster remains almost unchanged. Therefore, the rudder force remains unchanged, and the turning resistance of the hull decreases in proportion to the square of the ship's speed, and as in the case of the first embodiment, the forward movement is (Uo/U,
), which improves turning performance.
U、:減速板を作動させない時の加速
U、:減速板を作動させた時の船速
(効果)
舷側に垂直横方向に出入り又は回動可能な減速板を設け
、必要時にこれを側方に張出すことにより、船舶の停止
性能の向上は勿論、浅い海域においても、舵効きがよく
なり、旋回性能を一段と向上させることが可能となった
。U,: Acceleration when the deceleration plate is not activated U,: Vessel speed (effect) when the deceleration plate is activated A deceleration plate that can be moved in and out vertically and laterally or rotated is installed on the side of the ship, and can be moved laterally when necessary. This not only improves the ship's stopping performance, but also improves rudder effectiveness even in shallow waters, making it possible to further improve turning performance.
第1図は本発明に係る船舶の平面図。
第2図は第1図の■矢視部詳細断面図で、第2図(、)
は格納時、第2図(b)は張出時の状態を示す。
第3図は船首側からみた正面図。
第4図は第2実施例の平面図。
第5図は第4図の■矢視部詳細図で、第5図(a)は切
欠部を閉じた状態、第5図(b)は側方に張出した状態
を示す。
第6図は船首側からみた正面図。
第7図は浅水域と深水域における旋回航跡の比較図。
第8図は公知減速補助装置の3例を示す。
図において;
S 船舶
1 減速板 2 溝
3 ローラ 4 油圧ピストン5 減速板
6 ヒンジ
7 切欠部 8 油圧ピストン9 段部
以」−
出願人 住友重機械工業株式会社
復代理人 弁理士 大 橋 勇
7〜
■さ
訂シ
フ(FIG. 1 is a plan view of a ship according to the present invention. Figure 2 is a detailed sectional view of the section shown by the ■ arrow in Figure 1.
shows the state when it is stored, and FIG. 2(b) shows the state when it is extended. Figure 3 is a front view seen from the bow side. FIG. 4 is a plan view of the second embodiment. FIG. 5 is a detailed view of the section viewed from the arrow ■ in FIG. 4, where FIG. 5(a) shows a state in which the notch is closed, and FIG. 5(b) shows a state in which the notch is extended laterally. Figure 6 is a front view seen from the bow side. Figure 7 is a comparison diagram of turning tracks in shallow water and deep water. FIG. 8 shows three examples of known deceleration assist devices. In the figure; S ship 1 deceleration plate 2 groove 3 roller 4 hydraulic piston 5 deceleration plate
6 Hinge 7 Notch 8 Hydraulic piston 9 Step part - Applicant Sumitomo Heavy Industries, Ltd. Sub-Agent Patent attorney Isamu Ohashi 7 ~ ■ Revised Schiff (
Claims (1)
舷の船側に油圧装置により垂直横方向に出入可能な減速
板を設けたことを特徴とする船舶の減速操舵装置。 2)舵を推進機後方に配置した型式の船舶に於て、舷側
に平面形状扇形をした切欠を上下方向に設け、該切欠の
角部に減速板を蝶番結合し、該減速板を垂直張出位置と
扇形切欠部を覆う位置間を回動可能にしたことを特徴と
する船舶の減速操舵装置。[Scope of Claims] 1) A ship of the type in which the rudder is placed behind the propulsion device, characterized in that a speed reduction plate is provided on both sides of the ship that can be moved in and out vertically and laterally by a hydraulic device. reduction steering device. 2) In a type of ship in which the rudder is placed behind the propulsion unit, a notch with a fan-shaped planar shape is provided in the vertical direction on the side of the ship, a reduction plate is hinged to the corner of the notch, and the reduction plate is stretched vertically. A deceleration steering device for a ship, characterized in that it is rotatable between an extended position and a position covering a fan-shaped cutout.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP30590788A JPH02155898A (en) | 1988-12-05 | 1988-12-05 | Speed reduction steering device for ship |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP30590788A JPH02155898A (en) | 1988-12-05 | 1988-12-05 | Speed reduction steering device for ship |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH02155898A true JPH02155898A (en) | 1990-06-14 |
Family
ID=17950736
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP30590788A Pending JPH02155898A (en) | 1988-12-05 | 1988-12-05 | Speed reduction steering device for ship |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH02155898A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6983710B1 (en) * | 2004-11-05 | 2006-01-10 | The United States Of America As Represented By The Secretary Of The Navy | High speed braking of submerged propelled sea craft |
JP2016068580A (en) * | 2014-09-26 | 2016-05-09 | 三菱重工業株式会社 | Turn control device, ship, turn control method and program |
JP2016530153A (en) * | 2013-07-31 | 2016-09-29 | ソク スンユルSEOK, Sun Yul | Vessels that can run at ultra-high speeds, prevent sinking and run on their own |
CN107719578A (en) * | 2017-11-09 | 2018-02-23 | 舟山市定海兴舸船舶设计有限公司 | A kind of trimaran |
-
1988
- 1988-12-05 JP JP30590788A patent/JPH02155898A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US6983710B1 (en) * | 2004-11-05 | 2006-01-10 | The United States Of America As Represented By The Secretary Of The Navy | High speed braking of submerged propelled sea craft |
JP2016530153A (en) * | 2013-07-31 | 2016-09-29 | ソク スンユルSEOK, Sun Yul | Vessels that can run at ultra-high speeds, prevent sinking and run on their own |
JP2016068580A (en) * | 2014-09-26 | 2016-05-09 | 三菱重工業株式会社 | Turn control device, ship, turn control method and program |
CN107719578A (en) * | 2017-11-09 | 2018-02-23 | 舟山市定海兴舸船舶设计有限公司 | A kind of trimaran |
CN107719578B (en) * | 2017-11-09 | 2023-11-07 | 舟山市定海兴舸船舶设计有限公司 | Trimaran |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US3159134A (en) | Slow speed steering control for jet propelled boats | |
US3750607A (en) | Shallow-draft boat | |
JP2006516511A (en) | Ship steering and propulsion structure | |
JPH02155898A (en) | Speed reduction steering device for ship | |
US4278040A (en) | Braking rudder device | |
JPH08310489A (en) | Propulsion unit of bidirectional sailing ship | |
US3467045A (en) | Ship's rudder | |
US4030442A (en) | Marine propulsion device | |
JP4288512B2 (en) | Double-headed ship and its maneuvering method | |
US4084537A (en) | Flank drive for planing hull and displacement craft | |
JP2008189154A (en) | Brake device for vessel, and vessel | |
JPH05201388A (en) | Emergency collision preventing device for ship | |
JP2008230379A (en) | Method and device for steering uniaxial two-rudder vessel | |
JP2008221881A (en) | Single-screw two-rudder system | |
JPS63192688A (en) | Skeg device | |
JPH08156889A (en) | Method for steering ship | |
KR101430161B1 (en) | Tunnel thruster | |
JPH0449036Y2 (en) | ||
JPS61119490A (en) | Hull-rolling reducing apparatus | |
JP2566998Y2 (en) | Double ender ship | |
JPS63312298A (en) | Steering gear | |
JP3116173U (en) | Double-headed ship | |
US3509844A (en) | Power steering for ships and boats | |
JPS5845198Y2 (en) | Ship propulsion system | |
JPH03258689A (en) | Ship steering mechanism |