EP0375637A1 - Segelschiff mit schwenkbarem Mastbaum gemäss den Schiffahrtsbedingungen - Google Patents

Segelschiff mit schwenkbarem Mastbaum gemäss den Schiffahrtsbedingungen Download PDF

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Publication number
EP0375637A1
EP0375637A1 EP89830559A EP89830559A EP0375637A1 EP 0375637 A1 EP0375637 A1 EP 0375637A1 EP 89830559 A EP89830559 A EP 89830559A EP 89830559 A EP89830559 A EP 89830559A EP 0375637 A1 EP0375637 A1 EP 0375637A1
Authority
EP
European Patent Office
Prior art keywords
mast
sailboat
boat
ballast
supporting
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Withdrawn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
EP89830559A
Other languages
English (en)
French (fr)
Inventor
Massimo Rinaldi
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.)
QUATTROSTELLE Srl
Original Assignee
QUATTROSTELLE Srl
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 QUATTROSTELLE Srl filed Critical QUATTROSTELLE Srl
Publication of EP0375637A1 publication Critical patent/EP0375637A1/de
Withdrawn legal-status Critical Current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 
    • B63B15/00—Superstructures, deckhouses, wheelhouses or the like; Arrangements or adaptations of masts or spars, e.g. bowsprits
    • B63B15/02—Staying of masts or of other superstructures
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING 
    • B63B15/00—Superstructures, deckhouses, wheelhouses or the like; Arrangements or adaptations of masts or spars, e.g. bowsprits
    • B63B2015/0016—Masts characterized by mast configuration or construction
    • B63B2015/005—Masts characterized by mast configuration or construction with means for varying mast position or orientation with respect to the hull
    • B63B2015/0066—Inclinable masts with passive righting means, e.g. counterbalancing means

Definitions

  • the present invention relates to a sailboat with sail-mast tilting according to navigation conditions.
  • the present invention refers to a sailboat provided with supporting means for an integral unit constituted of mast, ballast and keel structure, capable of rotating on the bow-stern axis of the boat in response to variable conditions both of wind and/or navigation in order to maintain substantially unchanged the longitudinal attitude of the boat, i.e. in order to maintain substantially horizontal the same.
  • a sailboat of the abovementioned kind wherein the mast is associated to an extension thereof supporting both ballast and keel structure and is rotatably mounted on an axis coincident with the bow-stern axis, and passes through the hull of the boat through a mast step realized in the hull itself, so that the mast of the boat may be tilted owing to the action of the wind, resistance being made against such tilting by the weight of the ballast arranged to obtain a tilting opposed to that of the mast, the arrangement being such whereby within the maximum range of tilting of said mast, the hull of the boat remains substantially horizontal whatever tilt said mast assumes.
  • the conventional underwater keel is solid with the ballast, mounted on an extension of said mast.
  • the bow-­stern axis on which said mast and its extension bearing keel and ballast are rotatably mounted coincides with the points at which the stays supporting the mast are fixed, so that said stays remain taught whatever the angle of tilt of the mast.
  • the mast may be provided with shrouds arranged in the shape of a diamond and kept in place by means of a conventional crosstree.
  • a boat is shown sailing over a water surface 11. Substantially halfway along its length (with respect to the center of gravity), the boat 10 is provided with a mast 12 rotatably mounted on bearings 13, 14 by means of a pin 15.
  • the mast 12 and its extension 16 supporting a keel structure 17 and a ballast 18 may rock along the axis 19-­20 passing through the hull of the boat 10 provided with a step 21.
  • connections 22, 23 may be provided, aligned with the axis 19-20 for eventual stays 24, 25 arranged so that the plane defined by the mast 12 and by the stays 24, 25 may freely rotate along the axis 19-20 without introducing undue slacks or tensions.
  • figure 1 may also be appreciated from figure 2 wherein reference numerals as used in figure 1 indicate corresponding parts.
  • the amount of the tilting of the mast 12 is a function of the proportioning of the distances of the pressure centers of the sails on the mast 12 and of the length of the extension 16 of the mast 12 supporting the ballast 18 and, obviously, of the weight of the ballast 18.
  • the pin or shaft 15 rotatable in the bearings 13, 14 may be associated to locking means for preventing its tilting with respect to the hull when it is desired, for instance for the sporting pleasure of sailing a boat with a conventional behaviour using a trapeze to increase the balancing torque.
  • the calculations relating to the dimensioning of the mast 12, the length of its extension 16, the weight of the ballast 18 may be effected according to the well-­known rules of composition of the forces in play and a detailed description thereof is not deemed necessary.
  • the pin or shaft 15 along which the mast 12 and its extension 16 may tilt can be coupled to hydrodynamic dampers or the like (not shown), for improving the stability of the boat.
  • the arrangement according to the present invention is not limited to a single-masted structure, but may also be adopted in boats having a plurality of masts.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Indicating Or Recording The Presence, Absence, Or Direction Of Movement (AREA)
EP89830559A 1988-12-20 1989-12-20 Segelschiff mit schwenkbarem Mastbaum gemäss den Schiffahrtsbedingungen Withdrawn EP0375637A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8848694A IT1224831B (it) 1988-12-20 1988-12-20 Imbarcazioni a vela ad alberatura ad autoadattamento alle condizionidi navigazione
IT4869488 1988-12-20

Publications (1)

Publication Number Publication Date
EP0375637A1 true EP0375637A1 (de) 1990-06-27

Family

ID=11268093

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89830559A Withdrawn EP0375637A1 (de) 1988-12-20 1989-12-20 Segelschiff mit schwenkbarem Mastbaum gemäss den Schiffahrtsbedingungen

Country Status (2)

Country Link
EP (1) EP0375637A1 (de)
IT (1) IT1224831B (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995025663A1 (en) * 1994-03-18 1995-09-28 Peter Kenneth Everett A yacht
EP0714617A1 (de) * 1994-11-28 1996-06-05 Edf Products, Inc. Schwimmfähige Anordnung für Schwimmbädern
DE19825930A1 (de) * 1998-04-16 1999-08-19 Leitholf System zur Verringerung der Krängung von Wasserfahrzeugen, insbesondere Segelbooten
WO2009015650A1 (de) * 2007-08-02 2009-02-05 Gerhard Benz Segel-yacht mit einem krängenden und einem nicht krängenden bootsrumpf-teilkörper, insbesondere kombinierbares segel-yacht- und motorboot-modulsystem

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3885512A (en) * 1974-07-15 1975-05-27 Paul M Marcil Catamaran structure
US3903827A (en) * 1974-07-15 1975-09-09 Paul M Marcil Non-heeling hull assembly
US3972300A (en) * 1974-05-28 1976-08-03 Adamski Leo J Sailing craft
FR2323574A1 (fr) * 1975-09-09 1977-04-08 Los Rios Pierre De Nature oscillante a rappel compense
GB2151195A (en) * 1983-01-26 1985-07-17 Michael David Craig Pivoting mast for water-borne or land based vehicles

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3972300A (en) * 1974-05-28 1976-08-03 Adamski Leo J Sailing craft
US3885512A (en) * 1974-07-15 1975-05-27 Paul M Marcil Catamaran structure
US3903827A (en) * 1974-07-15 1975-09-09 Paul M Marcil Non-heeling hull assembly
FR2323574A1 (fr) * 1975-09-09 1977-04-08 Los Rios Pierre De Nature oscillante a rappel compense
GB2151195A (en) * 1983-01-26 1985-07-17 Michael David Craig Pivoting mast for water-borne or land based vehicles

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995025663A1 (en) * 1994-03-18 1995-09-28 Peter Kenneth Everett A yacht
US5908005A (en) * 1994-03-18 1999-06-01 Everett; Peter Kenneth Yacht
EP0714617A1 (de) * 1994-11-28 1996-06-05 Edf Products, Inc. Schwimmfähige Anordnung für Schwimmbädern
DE19825930A1 (de) * 1998-04-16 1999-08-19 Leitholf System zur Verringerung der Krängung von Wasserfahrzeugen, insbesondere Segelbooten
WO2009015650A1 (de) * 2007-08-02 2009-02-05 Gerhard Benz Segel-yacht mit einem krängenden und einem nicht krängenden bootsrumpf-teilkörper, insbesondere kombinierbares segel-yacht- und motorboot-modulsystem

Also Published As

Publication number Publication date
IT1224831B (it) 1990-10-24
IT8848694A0 (it) 1988-12-20

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