EP0955234B1 - Catamaran pour navigation de glisse ou de déplacement - Google Patents

Catamaran pour navigation de glisse ou de déplacement Download PDF

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Publication number
EP0955234B1
EP0955234B1 EP19990108540 EP99108540A EP0955234B1 EP 0955234 B1 EP0955234 B1 EP 0955234B1 EP 19990108540 EP19990108540 EP 19990108540 EP 99108540 A EP99108540 A EP 99108540A EP 0955234 B1 EP0955234 B1 EP 0955234B1
Authority
EP
European Patent Office
Prior art keywords
catamaran
surfing
hull
sailing
buoyancy
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
EP19990108540
Other languages
German (de)
English (en)
Other versions
EP0955234A3 (fr
EP0955234A2 (fr
Inventor
Carl Gustav Lange
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 EP0955234A2 publication Critical patent/EP0955234A2/fr
Publication of EP0955234A3 publication Critical patent/EP0955234A3/fr
Application granted granted Critical
Publication of EP0955234B1 publication Critical patent/EP0955234B1/fr
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 
    • B63B3/00—Hulls characterised by their structure or component parts
    • B63B3/02—Hulls assembled from prefabricated sub-units
    • B63B3/08—Hulls assembled from prefabricated sub-units with detachably-connected sub-units
    • 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
    • B63B1/12—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls the hulls being interconnected rigidly
    • B63B1/121—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving lift mainly from water displacement with multiple hulls the hulls being interconnected rigidly comprising two hulls
    • 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
    • B63B1/16—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces
    • B63B1/18—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydroplane type
    • B63B1/20—Hydrodynamic or hydrostatic features of hulls or of hydrofoils deriving additional lift from hydrodynamic forces of hydroplane type having more than one planing surface
    • 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
    • B63B2001/145—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 having means for actively varying hull shape or configuration

Definitions

  • the invention involves a catamaran of equal or different length of the hulls,each with an upwards arched,at the gunwales most crossbende deck and with,with about the same crossbendings,two floorboards and a bottom,which meets,crossways of the hull placed,bottomedgeangles of about 100°,with floorboards of hights about the half of a hull-beam and with hulls separably connected,by in the main thing, two crossbeams.
  • the above described catamaran has in waves not gentle movements,as catamarans which in vertical underhullscrosssections at the keels have tangents between which are bottomangles between 60° and 100°. Lastmentioned boats will be more slowly than a surfing boat by a,above a certain amount, of the same influenced force of movement.
  • a catamaran for buoyancy-or surfing-sailing is known from US patent 5 265 550 but is rather expensive to build.
  • the catamaran regarded in the invention is characterized by,that both the two hulls are divided in a superhull and a underhull by one,symmetric about a lengthways of the hull going plan with a heeling about 25° to vertical,dividing ribbonsurface cutting the suit,going along the inner facing floor-gunwale of the catamaran,sloping along the horizontal curbed bow,until it follow a : curve made by the cutting between the outer facing floorboard and the surfing bottom,for the short hull go in a sloping upturned curve up along the flat stem,respectivly for the long hull go in a sloping upturned curve up across through the hull after,until it again meet the floorboardgunwale and which in that way maded assembly-ribbonsurfaces for the whole boat are congruent and two and two are heeling against or from each other, and the two superhulls can be fixed to the underhulls with bolts or other means of fixations,in two different ways,thus producing different types of catamaran.
  • a catamaran for surfing is achieved by conecting the two superhulls to the two. underhulls so that the latter have the surfing bottom to the water.
  • a catamaran for sailing in waves is achieved by connecting the superhulls to the underhulls so that the latter have V-shaped contactsurfaces against the water. Consequently, in addition to sail surfing, one can choose to sail with V-shaped underhulls.
  • the drawing shows different parts of the catamaran regarded in the invention.
  • the catamaran has two hulls shown fully drawn on fig.2. On fig.2 it is shown that a fully drawn crosssection of one underhull can be replaced by the cross-section of the other underhull shown punched, because it is a mirror image of the other about the middlenormal-plane to the dividing ribbon-surfaces, with the keelplane k ⁇ at a right angle to the cora k.Because a and b are also on the congruent assembly-ribbons outer lines,the superhulls and the underhulls will meet at these. A cross-section in the hull in and show that a correct hulldesign and parallel keels can be achieved for the V-shabed bottom with a rounded bow.

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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)
  • Adjustment And Processing Of Grains (AREA)
  • Revetment (AREA)
  • Tires In General (AREA)
  • Telescopes (AREA)
  • Ink Jet (AREA)

Claims (1)

  1. Catamaran pour surf ou la flottabilité-navigation, caractérisé par, que toutes les deux coques sont partagées en deux, une coque superieure (1 ou 2) et une coque inferieure (3 ou 4), symétriques d'un plan longitudinal vertical, chaque coque ayant une inclinaison u = 25 degré +/- 10 degré par a rapport à la vertical, surfaces assemblées etant coincidente ainsi les coques sont penchées les unes contre les autres par éhange des coques inferieures.
EP19990108540 1998-05-07 1999-05-05 Catamaran pour navigation de glisse ou de déplacement Expired - Lifetime EP0955234B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DK62998 1998-05-07
DK62998A DK173305B1 (da) 1998-05-07 1998-05-07 Toskrogsbåd til planings- eller opdriftssejlads

Publications (3)

Publication Number Publication Date
EP0955234A2 EP0955234A2 (fr) 1999-11-10
EP0955234A3 EP0955234A3 (fr) 2000-06-21
EP0955234B1 true EP0955234B1 (fr) 2003-08-20

Family

ID=8095756

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19990108540 Expired - Lifetime EP0955234B1 (fr) 1998-05-07 1999-05-05 Catamaran pour navigation de glisse ou de déplacement

Country Status (3)

Country Link
EP (1) EP0955234B1 (fr)
DE (1) DE69910486D1 (fr)
DK (1) DK173305B1 (fr)

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE101114C (fr) *
US3085262A (en) * 1960-07-11 1963-04-16 Howell T Plemmons Boat construction
DE3344543A1 (de) * 1983-12-09 1985-09-26 T. Dipl.-Ing. Dr. 8043 Unterföhring Lechner Surfkatamaran
CH670230A5 (en) * 1985-09-27 1989-05-31 Vittorio Del Basso Ag Yacht hull made in sections - is divisible into three buoyant parts along lines parallel to keel to reduce overall width
US5265550A (en) * 1992-09-28 1993-11-30 Harper Jr William H Water vessel

Also Published As

Publication number Publication date
EP0955234A3 (fr) 2000-06-21
DK173305B1 (da) 2000-06-26
DE69910486D1 (de) 2003-09-25
DK62998A (da) 1999-11-08
EP0955234A2 (fr) 1999-11-10

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