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EP0174067A1 - Remorqueur pour assister un bateau plus grand - Google Patents

Remorqueur pour assister un bateau plus grand Download PDF

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Publication number
EP0174067A1
EP0174067A1 EP85304515A EP85304515A EP0174067A1 EP 0174067 A1 EP0174067 A1 EP 0174067A1 EP 85304515 A EP85304515 A EP 85304515A EP 85304515 A EP85304515 A EP 85304515A EP 0174067 A1 EP0174067 A1 EP 0174067A1
Authority
EP
European Patent Office
Prior art keywords
tug
tow
arm
line
towing
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Withdrawn
Application number
EP85304515A
Other languages
German (de)
English (en)
Inventor
Faredoon Rustom Mistry
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.)
Individual
Original Assignee
Individual
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
Priority claimed from GB848420925A external-priority patent/GB8420925D0/en
Priority claimed from GB848427554A external-priority patent/GB8427554D0/en
Application filed by Individual filed Critical Individual
Publication of EP0174067A1 publication Critical patent/EP0174067A1/fr
Withdrawn legal-status Critical Current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 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/16—Tying-up; Shifting, towing, or pushing equipment; Anchoring using winches
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
    • B63B21/56—Towing or pushing equipment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66D—CAPSTANS; WINCHES; TACKLES, e.g. PULLEY BLOCKS; HOISTS
    • B66D1/00—Rope, cable, or chain winding mechanisms; Capstans
    • B66D1/28—Other constructional details
    • B66D1/40—Control devices
    • B66D1/48—Control devices automatic
    • B66D1/50—Control devices automatic for maintaining predetermined rope, cable, or chain tension, e.g. in ropes or cables for towing craft, in chains for anchors; Warping or mooring winch-cable tension control

Definitions

  • This invention relates to tugs for rendering assistance to a larger vessel, the tugs having towing means comprising a towing arm which is mounted at or near one end on the deck of the tug in a manner such that the arm can swivel above the deck from one side of the tug to the other about an upright axis and which, at its other end, is provided with tow-line receiving means.
  • the towing means usually consists of a towing hook which is fixed in position on the main deck of the tug and on the longitudinal centre line of the tug usually about 40% to 45% of the length of the tug from its stern.
  • the aim of the present invention is to construct the towing means of a tug as initially described in such a way that the heeling moment on the tug which results from an athwartships pull on a tow-line extending from the towing means is reduced still further than with the arrangement just described.
  • a tug as initially described is characterised in that the towing arm is mounted so that it is swingable upwards and downwards within a limited angular range by a power-operated driving mechanism and has means for holding it in any position into which it is swung.
  • the angular range of the swivelling movement of the towing arm is at least 180°. That is to say the towing arm can swivel at least from a position directly abeam on one side of the tug through a position which is directly aft to a position which is directly abeam on the other side of the tug.
  • the point of action of the pull of the tow-line on the tug which is situated at the tow-line receiving means at the other end of the towing arm, is adjustable in position upwards and downwards relative to the tug and the line of action of the pull is similarly adjusted.
  • the point of action and thus also the line of action similarly, the pull of the tow-line can be balanced against the propeller thrust and the hydrodynamic push in such a way that the tug has no heeling moment acting upon it at all.
  • the angular range of the upward and downward swinging movement is preferably between 35° downwards and 20 * upwards from a horizontal position.
  • the horizontal position is defined as the position which the arm adopts when the tug is exactly upright and the towing means is at the same level as the axis about which the arm is swingable upwards and downwards.
  • the towing arm is also mounted so that it is additionally displaceable in a fore and aft direction on the deck of the tug and has means for holding it at least in its foremost and aftermost positions.
  • the fore and aft displaceability of the towing arm is very desirable and there are two particular positions in which it is most likely to need to be set when the tug is in operation. These are in its aftermost position, which is generally about 10% of the tug's length from its after end to create a satisfactory line of action for the tow-line when the tug is used as a stern tractor; and in its foremost position, which is generally about 40% of the tug's length from its after end. This second position is desirable to enable the tug's propellers at its after end to exert a moment to turn the tug about the point of attachment of the tow-line for manoeuvring purposes. It is also desirable for the arm to be able to be held in intermediate fore and aft positions as well.
  • the range of the displacement is therefore preferably from about 10% to about 40% of the length of the tug from its after end.
  • it may be mounted on a carriage which runs on rails extending fore and aft on the main deck of the tug.
  • the main function of the towing arm is to balance as far as is practicable the pull of the tow-line with the propeller thrust and the hydrodynamic push for stability reasons and for this purpose, the arm may be placed in any position on the deck of the tug in dependence on the possible different placements of the propeller or propellers on the tug.
  • the tow-line receiving means may be a tow-hook of a conventional type which is attached to the other end of the towing arm but when, as is sometimes desirable, it is required for the length of the tow-line to be readily adjustable during towing, a tow-line winch is mounted adjacent to the one end of the towing arm and partakes of the swivelling movement of the arm and the tow-line receiving means is then a tow-line guide which guides the tow-line from the other end of the arm to the winch.
  • the winch may be of the simple type having a drum which is rotated in one direction to wind in the tow-line by a motor and allows the tow-line to be payed out against the action of a brake. In this case the driving motor and the brake of the winch are operated as necessary to adjust the length of the tow-line.
  • the winch may be of the tension type which is commonly hydraulically operated and which is controlled automatically in dependence upon the tension in the tow-line in such a way that the tow-line is automatically payed out if the tension rises above a pre-determined value and the tow-line is wound in if the tension falls below another lower pre-determined value.
  • All the movements of the towing arm that is the swivelling movement about an upright axis and the fore and aft movement,.. well as the upward and downward swinging movement are preferably power operated by driving mechanisms.
  • the driving mechanism for swinging the arm upwards and downwards is preferably controlled automatically by a control device in dependence upon'the angle of heel of the tug to reduce automatically the capsizing moment acting on the tug.
  • the tug master should preferably not need to control continuously the direction of the towing arm around its vertical axis when the tug is pulling on the tow-line. This can be done by releasing the arm so that it is free to swing about its vertical axis to align itself with the towline or by automatically controlling the arm for this purpose.
  • the lateral force exerted by the tow-line under tension on the arm if the arm is not aligned with the tow-line can be used for actuating any automatic control mechanism for this purpose.
  • the tug has a hull 1 with a main deck 2 and twin multi-directional rudder propellers 3, which in this example are mounted right aft.
  • a towing arm 4 which in this example is shown extending horizontally, that is parallel to the main deck 2, has one end pivotally mounted on the main deck 2 so that it can swivel about a vertical axis 5, which coincides with the vertical centre line of the hull 1.
  • the towing arm carries a tow-hook 6 from which a tow-line 7 extends at an upward inclination to a larger vessel to which the tug is rendering assistance.
  • the towing arm 4 is of such a length that when it extends athwartships from the tug as shown in Figures 1 to 4, the tow-hook 6 is situated beyond the side of the hull l.
  • the tow-line When the tug is being used to tow a larger vessel ahead, the tow-line may lead at a sharp inclination upwards from the tug to the bow or stern of the assisted vessel and under these circumstances, particularly when the tow-line leads directly, or nearly directly, astern from the tug, it is better for the towing arm to be inclined upwards from the tug.
  • the towing arm When the tow-line leads athwartships from the tug, however, the towing arm should be horizontal or be inclined downwardly as explained with reference to Figure 4.
  • an upward inclination of the towing arm of up to about 20° is sufficient.
  • the arm should be inclined downwards at an angle of up to about 35° when the tow-line extends athwartships from the tug.
  • the tug has a super-structure 8 and a bow propeller 9, which is retractable into the hull in addition to the stern propellers 3.
  • the towing arm 4 is mounted on a bracket 10 so that it is upwardly and downwardly swingable about an axis 11.
  • the bracket 10 is mounted on a platform 12 which is rotatable about an upright axis so that the arm 4 can swivel about this upright axis into any positions between the positions shown at 4a, 4b and 4c in Figure 6.
  • the platform 12 is in turn mounted on a carriage 13 which is movable along rails 14 between the aft position shown at 12a and the forward position shown at 12b in Figure 6.
  • the platform 12 also carries a winch 15 and the tow-line 7, instead of being connected to a tow-hook at the end of the arm 4 passes through a fairlead 16 at the outer end of the arm 4 and then around a further guide to the drum of the winch 15.
  • Driving mechanisms 17, which are operated by electric motors, are provided on the platform 12 for swinging the towing arm 4 upwards and downwards about its pivot axis 11 and for rotating the platform 12 to effect the side to side swivelling movements of the arm 4.
  • the mechanisms 17 include means for holding the arm 4 in any position into which it is swung or swivelled.
  • the movement of the carriage 13 along the rails 14 is performed by a further driving mechanism, which moves the carriage by means of cables or chains and holds the carriage in any position into which it is moved.
  • towing arm 4 is shown in the position in which it is set for towing a vessel being assisted ahead with the tow-line 7 extending directly astern from the tug.
  • the hull and superstructure of the tug shown in Figure 7 are the same as those of the tug shown in Figures 5 and 6, but it is provided with a different towing arm assembly 18.
  • the assembly 18 has a towing arm 19 which is balanced by a counterweight 20.
  • the towing arm 19 is shown in a stowed position.
  • the arm 19 is swung upwards and downwards and held in any position into which it is swung by means of cables 21 and 22 leading to a winch mechanism 23.
  • the towing arm 19 together with the winch mechanism 23 are again mounted on a platform 24 which is rotatable about an upright axis and is itself mounted on a carriage 25 which is movable in a fore and aft direction on rails 26.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Ocean & Marine Engineering (AREA)
  • Tension Adjustment In Filamentary Materials (AREA)
  • Telephone Set Structure (AREA)
  • Toys (AREA)
  • Cosmetics (AREA)
  • Selective Calling Equipment (AREA)
EP85304515A 1984-08-17 1985-06-25 Remorqueur pour assister un bateau plus grand Withdrawn EP0174067A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
GB8420925 1984-08-17
GB848420925A GB8420925D0 (en) 1984-08-17 1984-08-17 Tug
GB8427554 1984-10-31
GB848427554A GB8427554D0 (en) 1984-10-31 1984-10-31 Tug

Publications (1)

Publication Number Publication Date
EP0174067A1 true EP0174067A1 (fr) 1986-03-12

Family

ID=26288132

Family Applications (2)

Application Number Title Priority Date Filing Date
EP85304515A Withdrawn EP0174067A1 (fr) 1984-08-17 1985-06-25 Remorqueur pour assister un bateau plus grand
EP85305402A Withdrawn EP0176189A1 (fr) 1984-08-17 1985-07-29 Remorqueur pour assister un bateau plus grand

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP85305402A Withdrawn EP0176189A1 (fr) 1984-08-17 1985-07-29 Remorqueur pour assister un bateau plus grand

Country Status (7)

Country Link
EP (2) EP0174067A1 (fr)
KR (1) KR860001744A (fr)
AU (2) AU4454085A (fr)
DK (1) DK372685A (fr)
ES (1) ES8607151A1 (fr)
FI (1) FI852977L (fr)
NO (1) NO853235L (fr)

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5575230A (en) * 1994-03-14 1996-11-19 Aquamaster-Rauma Ltd. Tug boat for escort towing and/or harbor use
US5609120A (en) * 1994-03-14 1997-03-11 Aquamaster-Rauma Ltd. Traction arrangement for a tug boat
WO2017167892A1 (fr) * 2016-03-31 2017-10-05 A.P. Møller - Mærsk A/S Remorqueur doté d'une grue pour manipuler un câble de remorquage
WO2017167890A1 (fr) * 2016-03-31 2017-10-05 A.P. Møller - Mærsk A/S Remorqueur pourvu d'un système de prévention de chavirage et de naufrage
WO2017167894A1 (fr) * 2016-03-31 2017-10-05 A.P. Møller - Mærsk A/S Remorqueur doté d'un bras de grue ou de robot
CN108974261A (zh) * 2018-09-10 2018-12-11 扬州中远海运重工有限公司 一种收放式吊运平台
US20190031299A1 (en) * 2016-03-31 2019-01-31 A.P. Møller - Mærsk A/S Method and system for operating one or more tugboats
CN109436203A (zh) * 2018-12-05 2019-03-08 大连海英科技有限公司 一种海洋工程定位锚泊装置及方法
US10836617B2 (en) * 2018-10-31 2020-11-17 Abb Schweiz Ag Method for operating towing winch and electric drive for towing winch
CN114096460A (zh) * 2019-07-15 2022-02-25 斯维特泽尔公司 一种用于操作系泊缆绳的方法和装置

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL2003746C2 (en) * 2009-11-03 2011-05-04 Baldo Dielen Assessoria Ltda VESSEL.
TR201905005T4 (tr) * 2014-01-31 2019-05-21 Voith Patent Gmbh Deniz aracı, özellikle şilep.
NO341775B1 (en) * 2016-07-01 2018-01-15 Rolls Royce Marine As Dynamic tug winch control
GB2568533B (en) * 2017-11-20 2020-12-02 Svitzer As Tugboat having a line handling system
GB2568534B (en) * 2017-11-20 2020-12-02 Svitzer As Tugboat with a moveable line guide mechanism
GB2568535B (en) 2017-11-20 2020-12-02 Svitzer As Line handling system for coupling together lines on a tugboat
NO345435B1 (en) 2018-01-19 2021-02-01 Kongsberg Maritime CM AS A vessel with a semi-automatic or automatic mooring system.
NO346340B1 (no) * 2020-05-20 2022-06-13 Bifrost Tug As Utløsersystem for en supply- eller slepebåt.
CN113772072B (zh) * 2021-09-10 2023-12-22 海洋石油工程股份有限公司 一种用于圆筒型fpso调头转向的方法
CN115258073B (zh) * 2022-08-09 2024-05-07 武汉理工大学 环境干扰下的船舶拖曳系统轨迹跟踪方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1530395A (en) * 1924-06-27 1925-03-17 Muller Arthur Hugo Means for towing boats, vessels, and the like on waterways
DE447183C (de) * 1926-02-18 1927-07-20 Theodor Kluever Sicherheitsvorrichtung fuer Schleppgeraete auf Schleppern zur Verhuetung des Kenterns
FR1158501A (fr) * 1956-08-10 1958-06-16 Dispositif de fixation des remorques à bord des remorqueurs
FR1492939A (fr) * 1966-05-13 1967-08-25 Bateau propulseur à bras de poussée ou de traction tournant tout autour de luimême
GB1357327A (en) * 1970-06-06 1974-06-19 Kingston Marine Technology Ltd Sea-going vessel

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE685414C (de) * 1939-03-23 1939-12-18 Schiff Und Maschb Akt Ges Deut Radial-Schleppgeschirr
US2902966A (en) * 1950-12-13 1959-09-08 Voith Gmbh J M Tugboat and towing system comprising the same
DE1247894B (de) * 1965-05-07 1967-08-17 Theodor Van Der Kuil Kupplungsvorrichtung zwischen einem Triebfahrzeug und einem Lastschiff
DE1756005C3 (de) * 1968-03-20 1978-03-30 Aktien-Gesellschaft Weser, 2800 Bremen Radialschleppgeschirr, insbesondere mit Hakenslipvorrichtung

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1530395A (en) * 1924-06-27 1925-03-17 Muller Arthur Hugo Means for towing boats, vessels, and the like on waterways
DE447183C (de) * 1926-02-18 1927-07-20 Theodor Kluever Sicherheitsvorrichtung fuer Schleppgeraete auf Schleppern zur Verhuetung des Kenterns
FR1158501A (fr) * 1956-08-10 1958-06-16 Dispositif de fixation des remorques à bord des remorqueurs
FR1492939A (fr) * 1966-05-13 1967-08-25 Bateau propulseur à bras de poussée ou de traction tournant tout autour de luimême
GB1357327A (en) * 1970-06-06 1974-06-19 Kingston Marine Technology Ltd Sea-going vessel

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5575230A (en) * 1994-03-14 1996-11-19 Aquamaster-Rauma Ltd. Tug boat for escort towing and/or harbor use
US5609120A (en) * 1994-03-14 1997-03-11 Aquamaster-Rauma Ltd. Traction arrangement for a tug boat
WO2017167892A1 (fr) * 2016-03-31 2017-10-05 A.P. Møller - Mærsk A/S Remorqueur doté d'une grue pour manipuler un câble de remorquage
WO2017167890A1 (fr) * 2016-03-31 2017-10-05 A.P. Møller - Mærsk A/S Remorqueur pourvu d'un système de prévention de chavirage et de naufrage
WO2017167894A1 (fr) * 2016-03-31 2017-10-05 A.P. Møller - Mærsk A/S Remorqueur doté d'un bras de grue ou de robot
US20190031299A1 (en) * 2016-03-31 2019-01-31 A.P. Møller - Mærsk A/S Method and system for operating one or more tugboats
CN108974261A (zh) * 2018-09-10 2018-12-11 扬州中远海运重工有限公司 一种收放式吊运平台
CN108974261B (zh) * 2018-09-10 2024-01-19 扬州中远海运重工有限公司 一种收放式吊运平台
US10836617B2 (en) * 2018-10-31 2020-11-17 Abb Schweiz Ag Method for operating towing winch and electric drive for towing winch
CN109436203A (zh) * 2018-12-05 2019-03-08 大连海英科技有限公司 一种海洋工程定位锚泊装置及方法
CN114096460A (zh) * 2019-07-15 2022-02-25 斯维特泽尔公司 一种用于操作系泊缆绳的方法和装置

Also Published As

Publication number Publication date
ES546139A0 (es) 1986-06-16
NO853235L (no) 1986-02-18
DK372685D0 (da) 1985-08-16
KR860001744A (ko) 1986-03-22
ES8607151A1 (es) 1986-06-16
FI852977A0 (fi) 1985-08-01
AU4454085A (en) 1986-02-20
DK372685A (da) 1986-02-18
AU4591485A (en) 1986-02-20
EP0176189A1 (fr) 1986-04-02
FI852977L (fi) 1986-02-18

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