EP2055628A2 - Coque avec quille téléscopique - Google Patents

Coque avec quille téléscopique Download PDF

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Publication number
EP2055628A2
EP2055628A2 EP08425689A EP08425689A EP2055628A2 EP 2055628 A2 EP2055628 A2 EP 2055628A2 EP 08425689 A EP08425689 A EP 08425689A EP 08425689 A EP08425689 A EP 08425689A EP 2055628 A2 EP2055628 A2 EP 2055628A2
Authority
EP
European Patent Office
Prior art keywords
hull
keel
bulwarks
tanks
ballast
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Withdrawn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
EP08425689A
Other languages
German (de)
English (en)
Other versions
EP2055628A3 (fr
Inventor
Benito Misurale
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
Application filed by Individual filed Critical Individual
Publication of EP2055628A2 publication Critical patent/EP2055628A2/fr
Publication of EP2055628A3 publication Critical patent/EP2055628A3/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Withdrawn legal-status Critical Current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 
    • B63B41/00—Drop keels, e.g. centre boards or side boards ; Collapsible keels, or the like, e.g. telescopically; Longitudinally split hinged keels

Definitions

  • the present invention relates to an improved hull.
  • the invention relates to a hull, particularly a sail hull, studied and realized in order to permit a navigation always under optimum conditions whichever are the maneuvering or point of sail conditions, so as to improve performances and speed of the same.
  • a sailing boat advances along the set course on the basis of the wind direction, of surface hit by wind and of resistance of the hull to advancing.
  • wind points of sail e.g. in case of close hauled or beam reach
  • both a hull unbalancing due to the impact of wind on sails, and thus depending both on wind intensity and sail surface toward wind
  • a leeway due to both wind and currents.
  • boats are provided with keel, either a fixed or movable keel (the latter for derive or anyway for small boats).
  • keel either a fixed or movable keel (the latter for derive or anyway for small boats).
  • centerboard is lifted when in the portanti points of sail, just in view of the fact that its work in these points of sail is not necessary, and would hinder advancing of the hull.
  • a well known system for adjusting attitude of sailing boat, permitting limiting the above phenomenon is that providing a basculating centerboard, permitting modifying centerboard angle with respect to the hull according to the navigation conditions. Movement of said basculating centerboard occurs by two hydraulic pistons provided substantially horizontal and action in contraposition each other.
  • the above system really permits improving stability of the hull, even if it does not completely solve the problem. In fact, it is unreliable. Failures frequently occur to the centerboard basculating system and to the two hydraulic pistons. Moreover, it has been observed a remarkable delay in the system response to the different navigation needing.
  • an improved hull having a fixed keel, coupled under said hull, characterized in that said keel comprises a plurality of elements telescopically coupled each other, so as to permit varying its length, and a ballast at the end of said keel; and in that it provides lengthening-shortening means for adjustment of length of said keel.
  • said lengthening-shortening means can be of the mechanical and/or hydraulic and/or pneumatic and/or electromecanical type.
  • said lengthening-shortening means can comprise a Worm screw; a ratiomotor, electrically operated for rotating said Worm screw; a toothed wheel, coupled with said Worm screw; a pinion, coaxial with respect to said toothed wheel; and a chain, engaged with said pinion, said chain having a first end and a second end, said first end being coupled with the most inner telescopic element, so that rotation of said toothed wheel by said Worm screw and said ratiomotor determines extraction or withdrawal of said elements for adjusting length of said keel.
  • said elements can be comprised of cuprum - nickel in order to prevent formation of vegetation on their surface.
  • said ballast can be fixed to, or integral with the end of said keel.
  • said hull can comprise one or more outer lateral tanks, on each bulwarks, said tanks being openable and closable, with their opening upward in correspondence of the hull upperworks, suitable to contain water as ballast.
  • said lateral tanks can be comprised of rubber and are hinged on each bulwark by hinges.
  • said lateral tanks can have every shape, particularly a parallelepiped shape, projecting from bulwarks o sides, maintaining the same features described, and can be comprised of every material, and they can be partially filled in, being independent each other, and they can be selected in number and position along the longitudinal extension of said bulwarks.
  • said hull can comprise pumping means for partial or total filling in and emptying of all or part of said lateral tanks.
  • said hull can comprise means for detecting attitude; and a control central unit, operatively connected with said lengthening-shortening means, with said pumping means and with said means for detecting attitude, suitable to activate said lengthening-shortening means and said pumping means for adjustment of hull attitude by adjustment of amount of water contained within said lateral tanks and adjustment of keel length.
  • said means for detecting attitude can comprise a first and a second inclinometer, respectively for detection of transverse attitude and of longitudinal attitude of the hull.
  • FIG. 1 Said hull 1 provides bulwarks 2, a telescopic keel 3 coupled to said hull 1, at the end of which it is provided a ballast 4.
  • Said hull 1 comprises a plurality of lateral tanks 5 on said bulwarks 2, said tanks being openable and closable and suitable to contain water in order to ballast the hull 1.
  • lateral tanks 5 of the bulwarks 2 involved i.e. the one windward, besides being also only partially fillable independently each other, and selected by number and position in the longitudinal direction of said windward bulwarks 2, i.e. the one at the end of the fore and the end of the aft.
  • Said ballast is fixed to, or integral with, the end of said hull 3, on element 6 n ,
  • Hull 3 is also provided with keel 3 lengthening-shortening means 7, comprising a ratiomotor 8 permitting rotating a Worm screw 9 engaging on a toothed wheel 10.
  • the latter transmits rotative motion to a pinion 11, which is engaged by a mesh chain 12, having one end 12' fixed to element 6", i.e. to the element fixed to ballast 4 while second end 12" is free.
  • Figure 3 shows particular A of telescopic coupling between two consecutive elements 6, comprised by a fixed joint.
  • Keel 3 according to the invention is preferably comprised of cuprum-nickel that, as well known, is a copper alloy wherein nickel is main additive element.
  • FIGS. 5 and 6 clearly show lateral tanks 5 of hull 1, comprised of rubber and including wings coupled with bulwarks 2 by hinges 5'.
  • water can be introduced or eliminated within/from said lateral tanks 5 by a suitable pumping system (not shown in the figures). Moreover, when extracting water, also closure of wings is obtained.
  • Adjustment of hull 1 according to the present invention can be realized manually operating ratiomotor 8, so as to adjust length of keel 3, and pumping system in order to introduce water within lateral tanks 5 of a side of hull 1.
  • a computerized control system (not shown in the figures) comprising a control central unit operatively connected with ratiomotor 8, with the pumping system and with two inclinometers, the latter being suitable to detecting position of sail plane in order to permit adjustment of transverse and longitudinal attitude of hull 1.
  • a computerized control system comprising a control central unit operatively connected with ratiomotor 8, with the pumping system and with two inclinometers, the latter being suitable to detecting position of sail plane in order to permit adjustment of transverse and longitudinal attitude of hull 1.
  • ratiomotor 8 operatively connected with ratiomotor 8
  • the pumping system and with two inclinometers
  • An advantage of the present invention is that all systems for adjusting attitude according to the invention do not occupy spaces within the hull, thus not reducing space inside.
  • a further advantage of the present invention is that of permitting designing boats with a larger sail surface.
  • retractable keel does not occupy space within the hull, being it possible reaching only 100 cm of length and its fixing does not require holing the hull. Therefore, a perfectly sealing tight structure is obtained.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Toys (AREA)
  • Accessories Of Cameras (AREA)
  • Earth Drilling (AREA)
EP08425689A 2007-10-26 2008-10-24 Coque avec quille téléscopique Withdrawn EP2055628A3 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ITRM20070563 ITRM20070563A1 (it) 2007-10-26 2007-10-26 Scafo perfezionato.

Publications (2)

Publication Number Publication Date
EP2055628A2 true EP2055628A2 (fr) 2009-05-06
EP2055628A3 EP2055628A3 (fr) 2009-07-22

Family

ID=40314094

Family Applications (1)

Application Number Title Priority Date Filing Date
EP08425689A Withdrawn EP2055628A3 (fr) 2007-10-26 2008-10-24 Coque avec quille téléscopique

Country Status (2)

Country Link
EP (1) EP2055628A3 (fr)
IT (1) ITRM20070563A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012107237A3 (fr) * 2011-02-10 2013-01-10 Ralf Hinkel Dispositif de quille relevable
US20210024226A1 (en) * 2017-04-19 2021-01-28 Bell Textron Inc. Deployable Apparatus to Prevent Helicopter Rollover

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB819916A (en) * 1956-02-20 1959-09-09 Walter Norman Kemp Telescopic keel
US3110281A (en) * 1962-05-14 1963-11-12 Lloyd P Buck Extensible keet construction
DE2109511A1 (de) * 1971-03-01 1972-09-07 Neuhaus, Werner, 4006 Erkrath Mechanisch betriebener Teleskopkiel
FR2351003A1 (fr) * 1976-05-13 1977-12-09 Cabrol Jean Pierre Aileron telescopique pour bateaux a voiles
EP0941919A1 (fr) * 1998-03-09 1999-09-15 Hellmut Krüger Quille télescopique pour voilier
FR2883254A1 (fr) * 2005-03-18 2006-09-22 Yann Lafosse Quille hydractive pendulaire separable pour navire comportant des ailerons lateraux orientables.

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB819916A (en) * 1956-02-20 1959-09-09 Walter Norman Kemp Telescopic keel
US3110281A (en) * 1962-05-14 1963-11-12 Lloyd P Buck Extensible keet construction
DE2109511A1 (de) * 1971-03-01 1972-09-07 Neuhaus, Werner, 4006 Erkrath Mechanisch betriebener Teleskopkiel
FR2351003A1 (fr) * 1976-05-13 1977-12-09 Cabrol Jean Pierre Aileron telescopique pour bateaux a voiles
EP0941919A1 (fr) * 1998-03-09 1999-09-15 Hellmut Krüger Quille télescopique pour voilier
FR2883254A1 (fr) * 2005-03-18 2006-09-22 Yann Lafosse Quille hydractive pendulaire separable pour navire comportant des ailerons lateraux orientables.

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012107237A3 (fr) * 2011-02-10 2013-01-10 Ralf Hinkel Dispositif de quille relevable
US9302741B2 (en) 2011-02-10 2016-04-05 Ralf Hinkel Retractable keel apparatus
US20210024226A1 (en) * 2017-04-19 2021-01-28 Bell Textron Inc. Deployable Apparatus to Prevent Helicopter Rollover
US11618588B2 (en) * 2017-04-19 2023-04-04 Textron Innovations Inc. Deployable apparatus to prevent helicopter rollover

Also Published As

Publication number Publication date
ITRM20070563A1 (it) 2009-04-27
EP2055628A3 (fr) 2009-07-22

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