EP2298637A1 - Trimaran doté de coques extensibles - Google Patents

Trimaran doté de coques extensibles Download PDF

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Publication number
EP2298637A1
EP2298637A1 EP09170540A EP09170540A EP2298637A1 EP 2298637 A1 EP2298637 A1 EP 2298637A1 EP 09170540 A EP09170540 A EP 09170540A EP 09170540 A EP09170540 A EP 09170540A EP 2298637 A1 EP2298637 A1 EP 2298637A1
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EP
European Patent Office
Prior art keywords
hulls
hull
connectors
main body
connector
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Withdrawn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
EP09170540A
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German (de)
English (en)
Inventor
Melih Buke
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.)
Ankira Teknoloji Muhendislik Ve Yapi San Tic Ltd Sti
Original Assignee
Ankira Teknoloji Muhendislik Ve Yapi San Tic Ltd Sti
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.)
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Publication date
Application filed by Ankira Teknoloji Muhendislik Ve Yapi San Tic Ltd Sti filed Critical Ankira Teknoloji Muhendislik Ve Yapi San Tic Ltd Sti
Priority to EP09170540A priority Critical patent/EP2298637A1/fr
Publication of EP2298637A1 publication Critical patent/EP2298637A1/fr
Withdrawn legal-status Critical Current

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B1/00—Hydrodynamic or hydrostatic features of hulls or of hydrofoils
    • B63B1/02—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement
    • B63B1/10—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls
    • B63B1/14—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls the hulls being interconnected resiliently or having means for actively varying hull shape or configuration

Definitions

  • This invention relates to boats, and more particularly trimarans with extensile hulls.
  • Trimaran is a marine vessel which is composed of a main hull and two side hulls parallel to it. Trimarans are used for long years due to its reliability in terms of balance, speed and comfort properties accrued by its hulls. However, due to its large width, some problems arise like difficulty of movement in marinas and similar narrow areas, lack of maneuverability, difficulty of being carried by a trailer and difficulty in boarding. Solutions for these problems are proposed in different patent documents.
  • US Pat. No. 5107783 discloses a trimaran which has side hulls capable of moving up and down. The motion is provided by a piston cylinder arrangement. By this means, contact of side hulls with the water is cut off so that the boat can move through narrow paths and get closer to berth. However, the distance between the side hulls and main hull is limited by the width of boat; so, higher stability and speeds can not be reached, which is available at the present invention.
  • US Pat. No. 2678018 shows a trimaran which has 3 position side hulls on both sides of the main hull.
  • an opportunity not only to have a higher stability movement, but also to keep the side hulls under the main hull for decreasing the width of boat to let it move through narrower paths is created.
  • the mechanism to get the side hulls under the main hull is operating, an unbalance of boat will occur.
  • the profile of the boat under water is not appropriate in terms of fluid dynamics.
  • Another drawback of this invention is the difficulty of using the "swing-wing" mechanism while cruising since the mechanism is operated by loosening/tightening the screws and nuts manually.
  • US Pat. No. 5277142 The underwater boat profile problem of US Pat. No. 2678018 is solved by US Pat. No. 5277142 .
  • US Pat. No. 5277142 By compromising the advantage of having 2 different sides hull positions that US2678018 has a better underwater profile when the side hulls are collected under the main hull is obtained.
  • the extended distance between main and side hulls is fixed and limited by the length of rotating arm.
  • the extended distance which is increased when compared to US Pat.No. 5277142 is adjustable so that a more stable cruise is obtained
  • Both US Pat.No. 3937166 and 5235925 disclose trimarans that have a lever arm mechanism (a pivot structure interconnecting the main hull and the retractable hull) that can pivot the side hulls to lie alongside the main hull to compact the boat by making the side hulls almost vertical near the main hull.
  • a lever arm mechanism a pivot structure interconnecting the main hull and the retractable hull
  • This also results in availability of cruising in narrow paths but the compacted structure has a risk of getting damaged while being carried by a trailer due to its shape when compared to the present invention, which is safer to handle since it collects the side hulls beneath the main body.
  • US Pat. No. 4730570 shows a trimaran that has extensile hulls using sliding crossarms.
  • side hulls are fixed in desired position on the sliding axis by screws and nuts manually. Therefore it should be done before setting sail. It is not possible in this invention to adjust the hull position while on cruise, which makes computerized control system implementation impossible.
  • the present invention allows the crew to adjust the hull positions while cruising and also implementation of a computerized control system adjusting the hull positions according to the boats dynamic behavior is available.
  • US Pat. No. 5647294 shows a boat with floaters on both sides. These floaters are connected to the main boat via long rotating arms that can come alongside of the main boat.
  • the mechanism has an apparatus that can increase the length of arm to some extent manually.
  • the invention is more appropriate for small boats and these floaters have far cry effect on the stability when compared to the hulls of present invention.
  • the mechanism used in US Pat. No. 5647294 is not suitable for computerized control.
  • the floaters of this invention do not decrease the contact surface of the system with water unlike the present invention, at which the main body does not have contact with water (contact with water is only at side, front and rear hulls).
  • the aim of this invention is to provide a boat that has low friction area and high stability by using a main body that does not have contact with the water, side hulls that can extend to both sides of main body, rear hulls that can extend backwards from the side hulls and a front hull that can extend to the front of the main body.
  • Another aim of this invention is to provide a boat which can retract all of its hulls beneath the main body so that it can stay in marinas with lower prices, it can easily cruise on narrow paths, it has increased maneuverability and it is available for being carried by trailer.
  • Another aim of this invention is to provide a boat that has hulls which are easily extended to desired positions, so that adjustments for varying conditions affecting cruise conditions such as water and weather conditions while on cruise can be made for a more stable, safer, faster and more comfortable cruise, and also to make the adjustments available for manual or computer based control.
  • Another aim of this invention is to provide a more comfortable cabin by having an increased volume above water so that the cabin can be made larger
  • the present invention is about a trimaran (1) comprising: a main body (2); extensile side hulls (3,4) which are connected to the main body (2) via connectors (9,10,11,12) including piston cylinder mechanisms; extensile rear hulls (5,6) which are connected to the rear end of side hulls (3,4) via connectors (13,14) including piston cylinder mechanisms and a front hull (7) connected to the main body (2) via extensile front hull connector (8).
  • the front hull (7) can extend towards the positive cruising direction
  • the side hulls (3,4) can extend towards the axes perpendicular to the positive cruising direction and parallel to water surface
  • the rear hulls (5,6) can extend towards the negative cruising direction.
  • Front hull connector (8) is nested in the housing of front hull connector (15) lying all along below the main body (2).
  • Side hull connectors (9,10,11,12) are nested in the housings (16,17,18,19) lying below the main body in the direction perpendicular to cruising direction and parallel to the water surface, which are designed accordingly not to coincide the housing of front hull connector (15).
  • housing of side hull connectors (16,17,18,19) are positioned beneath the main body (2) and housing of front hull connector is positioned under the side hull connector housings (16,17,18,19).
  • the housings of opposing connectors of side hulls may be on the same axis or, more preferably, may have an offset in main cruising axis.
  • they can be made longer (up to the width of the trimaran) and this results in availability of using longer pistons so that the side hulls (3,4) can extend more to the sides and the stability increases (so does the max speed allowed).
  • Rear hulls (5,6) can extend towards the negative cruising direction as mentioned earlier. This sliding motion is provided by the motion of rear hull connectors (13,14) nested in the rear hull connector housings (20,21) located inside the side hulls (3,4).
  • the trimaran (1) can be carried by trailer, it can stay in marinas with lower prices and it can cruise in narrow paths.
  • all of the mentioned hull (3,4,5,6,7) motions are made by sliding of pistons actuated by separate electric motors and worm screws for each piston.
  • the worm screws transmit the motions created in the electric motors to the pistons.
  • manual capstans are used at each sliding part as a precaution for unavailability of using the powered sliders (motor breakdown, electric shortage etc.).
  • each of the side hulls (3,4) and the front hull (7) are designed to carry the weight of trimaran (1) by itself.
  • polyester coated wood is used as material for main body (2) and the hulls (3,4,5,6,7).
  • All of the hulls (3,4,5,6,7) have the ability of being hold in the desired extension length with the aid of piston cylinder mechanism usage.
  • the ability of the hulls (3,4,5,6,7) to be extended/retracted fast and easily gives the user possibility of making optimization between high stability/speed and maneuverability/cruising in narrow paths. Also, safer cruise can be obtained by adjusting the hulls' (3,4,5,6,7) positions for different weather and water conditions.
  • a computer based control system which uses inputs affecting cruise conditions such as weather and water conditions as inputs, can also be implemented to control the hull (3,4,5,6,7) motions is also available.
  • a mechanism using sensors can be implemented on the net system that prevents retraction of side hulls (3,4) while the net is in use, i.e. there is a weight on the net.
  • a mechanism or algorithm that prevents the rear hulls (5,6) to be extended while there is not enough clearance, i.e. the side hulls (3,4) are not extended enough.
  • cabin stability can be provided at wavy water.
  • sensors pressure sensor, accelerometer etc.
  • shock absorbers instead of the pistons, which damp some of the forces caused by waves.

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  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Body Structure For Vehicles (AREA)
EP09170540A 2009-09-17 2009-09-17 Trimaran doté de coques extensibles Withdrawn EP2298637A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP09170540A EP2298637A1 (fr) 2009-09-17 2009-09-17 Trimaran doté de coques extensibles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP09170540A EP2298637A1 (fr) 2009-09-17 2009-09-17 Trimaran doté de coques extensibles

Publications (1)

Publication Number Publication Date
EP2298637A1 true EP2298637A1 (fr) 2011-03-23

Family

ID=41514305

Family Applications (1)

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EP09170540A Withdrawn EP2298637A1 (fr) 2009-09-17 2009-09-17 Trimaran doté de coques extensibles

Country Status (1)

Country Link
EP (1) EP2298637A1 (fr)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103129711A (zh) * 2013-03-10 2013-06-05 浙江海洋学院 军民两用船
CN103434947A (zh) * 2013-09-12 2013-12-11 浙江海洋学院 海上中转龙门吊
WO2015131999A1 (fr) * 2014-03-03 2015-09-11 Ernst Bullmer Navire multicoque comprenant un système d'assemblage de compensation servant à réduire une contrainte sur des paliers
WO2016093614A1 (fr) * 2014-12-09 2016-06-16 백윤강 Trimaran variable utilisant une énergie naturelle
CN113859484A (zh) * 2021-10-27 2021-12-31 淮阴工学院 一种水上救援装置
WO2022055344A1 (fr) * 2020-09-10 2022-03-17 Shipextend B.V. Navire ayant une taille de coque variable
CN118270199A (zh) * 2024-06-04 2024-07-02 山东未来机器人有限公司 救援艇

Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2678018A (en) 1950-01-07 1954-05-11 Phillip L Crisp Portable boat
US3937166A (en) 1973-10-09 1976-02-10 Ian Lindsay Float connection assemblies for multi-hulled boats
US4172426A (en) 1978-03-31 1979-10-30 Leonard Susman Folding outrigger releasable brace for trimaran
US4730570A (en) 1986-08-28 1988-03-15 Harris Donald R Variable beam trimaran
US5107783A (en) 1990-04-26 1992-04-28 Aeromarine S.R.L. Variable trim trimaran
US5235925A (en) 1992-07-01 1993-08-17 Farrier Ian L Retractable connecting beam for trimarans
US5277142A (en) 1991-11-01 1994-01-11 Connor Dennis P Variable-beam catamaran
US5540170A (en) * 1994-08-17 1996-07-30 Purdy; Peter K. Multi-hull marine vessel with retractable outer hulls
US5647294A (en) 1996-03-05 1997-07-15 Finley; John Boat with adjustable outriggers
WO2004016497A1 (fr) * 2002-08-14 2004-02-26 Heyring Technologies Pty Ltd Navire
DE102007022498A1 (de) * 2007-05-14 2008-11-20 Meyer, Florian Insbesondere für prinzipiell- o. aditiv eingesetzte Kite- o. Flettner-Kite-Antriebe entwickelte (-, gegebenenfalls auch teilweise untereinander kombinierbare) Schiffs-, Yachts- u. Boots-Konzeptionen (- für Lastentransport- u. Fähr- Schiffe, Renn- o. Fahrten- Yachten sowie für Swaths u. Freitzeit-Bote)

Patent Citations (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2678018A (en) 1950-01-07 1954-05-11 Phillip L Crisp Portable boat
US3937166A (en) 1973-10-09 1976-02-10 Ian Lindsay Float connection assemblies for multi-hulled boats
US4172426A (en) 1978-03-31 1979-10-30 Leonard Susman Folding outrigger releasable brace for trimaran
US4730570A (en) 1986-08-28 1988-03-15 Harris Donald R Variable beam trimaran
US5107783A (en) 1990-04-26 1992-04-28 Aeromarine S.R.L. Variable trim trimaran
US5277142A (en) 1991-11-01 1994-01-11 Connor Dennis P Variable-beam catamaran
US5235925A (en) 1992-07-01 1993-08-17 Farrier Ian L Retractable connecting beam for trimarans
US5540170A (en) * 1994-08-17 1996-07-30 Purdy; Peter K. Multi-hull marine vessel with retractable outer hulls
US5647294A (en) 1996-03-05 1997-07-15 Finley; John Boat with adjustable outriggers
WO2004016497A1 (fr) * 2002-08-14 2004-02-26 Heyring Technologies Pty Ltd Navire
DE102007022498A1 (de) * 2007-05-14 2008-11-20 Meyer, Florian Insbesondere für prinzipiell- o. aditiv eingesetzte Kite- o. Flettner-Kite-Antriebe entwickelte (-, gegebenenfalls auch teilweise untereinander kombinierbare) Schiffs-, Yachts- u. Boots-Konzeptionen (- für Lastentransport- u. Fähr- Schiffe, Renn- o. Fahrten- Yachten sowie für Swaths u. Freitzeit-Bote)

Cited By (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103129711B (zh) * 2013-03-10 2015-07-01 浙江海洋学院 军民两用船
CN103129711A (zh) * 2013-03-10 2013-06-05 浙江海洋学院 军民两用船
CN103434947B (zh) * 2013-09-12 2016-06-15 浙江海洋学院 海上中转龙门吊
CN103434947A (zh) * 2013-09-12 2013-12-11 浙江海洋学院 海上中转龙门吊
CN106458286A (zh) * 2014-03-03 2017-02-22 富图拉游艇系统发展有限公司 具有用于降低轴承负荷的补偿连接件的多船体船舶
WO2015131999A1 (fr) * 2014-03-03 2015-09-11 Ernst Bullmer Navire multicoque comprenant un système d'assemblage de compensation servant à réduire une contrainte sur des paliers
US9963202B2 (en) 2014-03-03 2018-05-08 Futura Yacht Systems Eub Gmbh & Co. Kg Multi-hulled vessel having a compensating connection for reducing bearing load
CN106458286B (zh) * 2014-03-03 2018-06-19 富图拉游艇系统EuB有限公司 具有用于降低轴承负荷的补偿连接件的多船体船舶
WO2016093614A1 (fr) * 2014-12-09 2016-06-16 백윤강 Trimaran variable utilisant une énergie naturelle
US10300991B2 (en) 2014-12-09 2019-05-28 Mjc Co., Ltd. Variable trimaran using natural power
WO2022055344A1 (fr) * 2020-09-10 2022-03-17 Shipextend B.V. Navire ayant une taille de coque variable
CN113859484A (zh) * 2021-10-27 2021-12-31 淮阴工学院 一种水上救援装置
CN118270199A (zh) * 2024-06-04 2024-07-02 山东未来机器人有限公司 救援艇

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