EP1253074B1 - Schlepper - Google Patents

Schlepper Download PDF

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Publication number
EP1253074B1
EP1253074B1 EP02076631A EP02076631A EP1253074B1 EP 1253074 B1 EP1253074 B1 EP 1253074B1 EP 02076631 A EP02076631 A EP 02076631A EP 02076631 A EP02076631 A EP 02076631A EP 1253074 B1 EP1253074 B1 EP 1253074B1
Authority
EP
European Patent Office
Prior art keywords
tugboat
winch
hull
cutwater
fore
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.)
Expired - Lifetime
Application number
EP02076631A
Other languages
English (en)
French (fr)
Other versions
EP1253074A1 (de
Inventor
Willem Sievert Ganzinga
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WorldWise Marine Engineering BV
Original Assignee
WORLDWISE MARINE ENGINEERING B
WorldWise Marine Engineering BV
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by WORLDWISE MARINE ENGINEERING B, WorldWise Marine Engineering BV filed Critical WORLDWISE MARINE ENGINEERING B
Publication of EP1253074A1 publication Critical patent/EP1253074A1/de
Application granted granted Critical
Publication of EP1253074B1 publication Critical patent/EP1253074B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/66—Tugs
    • B63B35/68—Tugs for towing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B35/00—Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
    • B63B35/66—Tugs

Definitions

  • the invention relates to a tugboat according to the preamble of Claim 1.
  • Such tugboats are known, for example US 3 892 386 shows a tugboar according to the preamble of claim 1.
  • towing cables are also increasingly frequently being run out in the forward direction, and that it is desirable to be able by means of a winch to vary the length of a towing cable run out in the forward direction.
  • a second winch is placed on the foredeck in the known tugboats.
  • Such a second winch necessitates additional investment in winch and cable, additional maintenance and, besides, this second winch often has to be smaller in size because there is only limited space on the foredeck.
  • the device according to the invention is designed according to the characterizing part of Claim 1. This means that the winch can be used when the towing cable is being paid out over the foredeck and when the towing cable is being paid out over the stern, so that the load on the winch can be the same in both cases.
  • the device is designed according to Claim 2. This produces better operational reliability of the winch, and thus of the tugboat.
  • the tugboat is designed according to Claim 3.
  • the result of this is a reduction of the upsetting moment that is exerted upon the tugboat by a towing cable that is run out in the forward direction when the towing cable is directed upwards, as is the case when the towing cable is attached to a ship with a high freeboard.
  • the tugboat is designed according to Claim 4. This means that the force exerted by the tugboat on a towing cable run out in the forward direction is increased with the same transverse force of the second propulsion means.
  • the tugboat is designed according to Claim 5. This means that the tugboat can exert a greater force on a towing cable paid out in the transverse direction.
  • the tugboat is designed according to Claim 6. This means that a compact construction of the tugboat is obtained.
  • the tugboat is designed according to Claim 7. This produces second propulsion means, by means of which there can be a rapid reaction to changing circumstances.
  • the tugboat is designed according to Claim 8. This means that second propulsion means are obtained in a simple manner without parts projecting from the hull.
  • the tugboat is designed according to Claim 9 or 10. This means that the jet pipe can develop propulsion power in an efficient manner.
  • the tugboat is designed according to Claim 11.
  • the lateral resistance of the fore cutwater is increased additionally, with the result that greater transverse forces can be generated.
  • Figure 1 shows a hull 5 of a tugboat, which tugboat is suitable for towing away objects floating in the water, and in particular is suitable for guiding ships.
  • a railing 2 is fitted in the known manner around the hull 5 near the afterdeck, amidships there is a pilot house 12, and the chimneys 4 of the propulsion means (not shown) can be seen.
  • a rear towing cable 1 can be attached to the tugboat, and protection brackets 3 are provided on either side on the afterdeck, in order to ensure that the towing cable 1 does not come into contact with objects placed on the afterdeck.
  • a towing cable 31 can be guided by way of a front hawse-hole 8 and an aperture 10 into a front cable guide bracket 11 to a winch 16 (see Figure 2).
  • protection brackets 7 are provided on either side on the foredeck.
  • the winch 16 can be seen with three winch drums 14, each provided with two drum cheeks 13.
  • a front cable guide bracket 11 is placed in front of the winch 16, and a rear cable guide bracket 15 is placed behind the winch 16.
  • Each cable guide bracket has three apertures 10, through which towing cables are guided to the winch drums 14 in such a way that said cables wind up evenly.
  • the front cable guide bracket 11 forms part of a wall by means of which the winch 16 is protected from spray splashing on the foredeck.
  • Figure 3 shows the tugboat in side view, a water surface 17 also being indicated.
  • the hull 5 is provided on the front side with a bulbous stem 27, and on the underside with a fore cutwater 25 and an aft cutwater 21.
  • first propulsion means composed of a stern drive 20, are provided in a known manner on the rear side of the hull 5.
  • Said stem drive may be of a dual design.
  • Each stem drive 20 has a motor 22 and a nozzle 18 in which a propeller 19 can rotate.
  • the nozzle 18 and the propeller 19 are rotatable about a vertical axis in a known manner.
  • Second propulsion means are provided on the front side of the tugboat, by means of which propulsion means forces can be exerted on the hull 5 transversely to the longitudinal direction of the tugboat, and by means of which forces can preferably also be exerted in the direction of travel.
  • the transverse forces are exerted on the hull 5 as far forward as possible, and preferably in front of the bracket 6, so that the force exerted by the second propulsion means can exert the greatest possible steering torque on the tugboat.
  • the second propulsion means comprise a jet pipe 26, which can rotate about a vertical axis of rotation 28 with the aid of a directional drive 37.
  • FIGS. 5 and 6 show the second propulsion means in greater detail.
  • the jet pipe 26 can rotate about the vertical axis 28 in a chamber 32, which is hollowed out on the underside of the broad part of the fore cutwater 25.
  • the direction of the water jet from the jet pipe 26 forms an angle ⁇ of approximately 20 degrees with the horizontal plane.
  • the water propelled out of the jet pipe 26 is sucked in through a suction channel 34, which begins on either side of the narrow part of the fore cutwater 25 with suction apertures 35, which may be provided with a grille.
  • a propeller 24 is accommodated in the suction channel 34, which propeller is driven by a motor 23.
  • the fore cutwater 25 is provided with an end plate 33 which, viewed in the horizontal plane, is larger all round than the horizontal section of the fore cutwater 25.
  • the end plate 33 preferably forms an edge 200 to 300 mm wide on the underside of the fore cutwater 25.
  • FIG. 4 shows the top view of the tugboat, and it can be seen that the winch 16 is situated more or less in the centre, halfway along the hull 5.
  • a winch drive 29 and a drive motor 30 can also be seen.
  • the winch 16 is in the form of three winch drums 14, each of which can be driven separately.
  • the drive of the winch drums 14 is preferably dual, for example by providing two drive motors 30.
  • Figure 7 shows the front side of the hull 5, and in particular the prow on the underside. It can be seen here that the prow is provided with the bulbous stem 27, and that the fore cutwater 25 begins at said bulbous stem 27. It can also be seen that the fore cutwater 25 has a streamlined profile with a maximum width at the front side. At the position of said maximum width, the chamber 32 for the jet pipe 26 is provided in the fore cutwater 25. The suction apertures 35 are provided on either side of the narrow part of the fore cutwater 25 in the bottom surface of the hull 5.
  • FIG 8 shows an example of the use of the tugboat according to the invention to guide a boat B.
  • the boat B is travelling in direction V B and is being guided by a front tugboat C, which is travelling in direction V C , and a rear tugboat A, which is travelling in direction V A .
  • the boat B is guided, for example, when it is approaching a harbour or if no risk may be taken that the boat B might become uncontrollable should the rudder of boat B go out of order. This occurs, for example, if boat B is full of oil and is sailing along a rocky coastline, where running aground would lead to unacceptable pollution of the coastline.
  • the longitudinal axis of the rear tugboat A forms an angle ⁇ with the direction V A in which the tugboat A is moving through the water.
  • the lateral surface of the tugboat gives a great lateral resistance, which is indicated by R in Figure 9.
  • Said lateral resistance R is additionally great through the fore cutwater 25 and the end plate 33.
  • Said lateral resistance is partly the reason why a great force F can be exerted on the towing cable 9, with the result that the boat B can change direction.
  • the force F in the towing cable 9 will try to change the course of the tugboat and make the angle ⁇ smaller. This is prevented by, inter alia, the second propulsion means, it being an advantage that the jet pipe 26 lies in front of the action point of the towing cable 9.
  • bracket 6 By guiding the towing cable 9 by way of bracket 6, it is ensured that the direction of pull of the towing cable 9 is in the direction of line n, and the distance to the line n through the centre of gravity z is equal to a, which distance is much shorter than the distance b, so that the upsetting moment is also considerably smaller as a result of the force F in the towing cable 9. It is advantageous here if the bracket 6 is as wide as possible, and preferably wider than half the width of the tugboat.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Revetment (AREA)
  • Unwinding Of Filamentary Materials (AREA)
  • High-Pressure Fuel Injection Pump Control (AREA)

Claims (11)

  1. Schleppschiff, umfassend einen Schiffsrumpf (5), erste Propulsionsmittel (18, 19, 20) an der Hinterseite des Schiffsrumpfs, ein Deck, eine Winde (16), welche auf dem Deck angeordnet ist und eine oder mehr Windentrommeln (14) aufweist, jede zum Aufwickeln eines Schleppseils (1, 9, 31) und eine Seilführungsstütze (15), welche hinter der Winde angeordnet ist, zum Führen eines Schleppseils (1) zu der betreffenden Windentrommel, wobei das Schleppseil eine Rückwärtskraft auf die Windentrommel ausüben kann, dadurch gekennzeichnet, dass eine vordere Seilführungsstütze (11) vor der Winde angeordnet ist, um ein Schleppseil (9, 31) in der Vorwärtsrichtung zu führen, wobei das Schleppseil eine Vorwärtskraft auf die Windentrommel (14) ausüben kann.
  2. Schleppschiff nach Anspruch 1, dadurch gekennzeichnet, dass die Winde mit zwei unabhängig arbeitenden Antriebssystemen (29, 30) für die Windentrommel(n) versehen ist.
  3. Schleppschiff nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass ein Führungsbogen (6) vor der vorderen Seilführungsstütze (11) angeordnet ist, um ein Schleppseil (9) innerhalb eines Führungsbereichs zu führen, wobei der Führungsbereich breiter als ein Drittel - und vorzugsweise breiter als die Hälfte - der Breite des Schleppschiffs ist.
  4. Schleppschiff nach Anspruch 3, wobei zweite Propulsionsmittel (26) auf der Vorderseite des Schiffsrumpfs vorhanden sind, wobei die zweiten Propulsionsmittel Kräfte ausüben können, welche in der seitlichen Richtung auf dem Schiffsrumpf gerichtet sind, dadurch gekennzeichnet, dass der Führungsbogen hinter den zweiten Propulsionsmitteln angeordnet ist.
  5. Schleppschiff nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Schiffsrumpf auf der Vorderseite mit einem knollenförmigen Vordersteven (27) und auf der Unterseite mit einem vorderen Wellenbrecher (25), welcher in der Längsrichtung verläuft, versehen ist, wobei der vordere Wellenbrecher an der Position des knollenförmigen Vorderstevens beginnt.
  6. Schleppschiff nach einem der vorhergehenden Ansprüche, bei welchem zweite Propulsionsmittel (26) auf der Vorderseite des Schiffsrumpfs vorhanden sind und Kräfte in der Querrichtung auf dem Schiffsrumpf ausüben können, dadurch gekennzeichnet, dass der Schiffsrumpf auf der Unterseite mit einem vorderen Wellenbrecher (25) versehen ist, welcher in der Längsrichtung verläuft, wobei der vordere Wellenbrecher in der Nähe der Vorderseite des Schiffsrumpfs beginnt und die zweiten ,Propulsionsmittel (26) im vorderen Wellenbrecher vorgesehen sind.
  7. Schleppschiff nach Anspruch 6, dadurch gekennzeichnet, dass die zweiten Propulsionsmittel ein Strahlrohr (26) zum raschen Fließenlassen von Wasser umfassen, wobei das Strahlrohr um eine vertikale Achse (28) drehbar ist.
  8. Schleppschiff nach Anspruch 7, dadurch gekennzeichnet, dass der vordere Wellenbrecher (25) mit einer Kammer (32) versehen ist, welche an der Unterseite offen ist und in welcher sich das Strahlrohr drehen kann.
  9. Schleppschiff nach Anspruch 7 oder 8, dadurch gekennzeichnet, dass die Richtung des Strahls von dem Strahlrohr einen Winkel (α) von weniger als dreißig Grad auf die horizontale Ebene bildet.
  10. Schleppschiff nach Anspruch 7, 8 oder 9, dadurch gekennzeichnet, dass die Richtung des Strahls von dem Strahlrohr einen Winkel (α) von ungefähr zwanzig Grad auf die horizontale Ebene bildet.
  11. Schleppschiff nach Anspruch 5 bis 10, dadurch gekennzeichnet, dass der vordere Wellenbrecher (25) auf der Unterseite mit einer Endplatte (33) zum Führen von Wasser entlang des Wellenbrechers in der horizontalen Richtung versehen ist.
EP02076631A 2001-04-27 2002-04-24 Schlepper Expired - Lifetime EP1253074B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
NL1017962A NL1017962C2 (nl) 2001-04-27 2001-04-27 Sleepboot.
NL1017962 2001-04-27

Publications (2)

Publication Number Publication Date
EP1253074A1 EP1253074A1 (de) 2002-10-30
EP1253074B1 true EP1253074B1 (de) 2004-03-24

Family

ID=19773319

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02076631A Expired - Lifetime EP1253074B1 (de) 2001-04-27 2002-04-24 Schlepper

Country Status (4)

Country Link
EP (1) EP1253074B1 (de)
AT (1) ATE262442T1 (de)
DE (1) DE60200274D1 (de)
NL (1) NL1017962C2 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104058066B (zh) * 2014-06-09 2016-08-17 武昌船舶重工集团有限公司 用于船舶的拆卸式尾滚筒及其船舶安装方法
RU2581804C1 (ru) * 2015-02-27 2016-04-20 Андрей Валерьевич Смирнов Катер буксирно-моторный и способ буксировки плавучих средств при помощи катера буксирно-моторного (варианты)
CN109305285B (zh) * 2018-10-19 2024-03-12 华南造船厂（江门）有限公司 一种可减阻提速的灵便型全回转拖船

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE406601C (de) * 1923-08-31 1924-11-29 Miroslav Miloikovic Verfahren zum Schleppen von Schiffen
US3892386A (en) * 1973-11-05 1975-07-01 Smith Berger Mfg Corp Marine towing line guide
FR2675764B1 (fr) * 1991-04-29 1996-08-02 Alain Cozian Dispositif de propulsion orientale par reaction a jet d'eau.

Also Published As

Publication number Publication date
EP1253074A1 (de) 2002-10-30
NL1017962C2 (nl) 2002-10-29
ATE262442T1 (de) 2004-04-15
DE60200274D1 (de) 2004-04-29

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