EP1435325A1 - Zurückziehbare Rumpfvorrichtungen für die Trimmsteuerung gleitenden Wasserfahrzeuge - Google Patents

Zurückziehbare Rumpfvorrichtungen für die Trimmsteuerung gleitenden Wasserfahrzeuge Download PDF

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Publication number
EP1435325A1
EP1435325A1 EP03425744A EP03425744A EP1435325A1 EP 1435325 A1 EP1435325 A1 EP 1435325A1 EP 03425744 A EP03425744 A EP 03425744A EP 03425744 A EP03425744 A EP 03425744A EP 1435325 A1 EP1435325 A1 EP 1435325A1
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EP
European Patent Office
Prior art keywords
boat
appendages
hull
pair
appendage
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Withdrawn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
EP03425744A
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English (en)
French (fr)
Inventor
Giorgio Brighi
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Individual
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Individual
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Publication date
Application filed by Individual filed Critical Individual
Publication of EP1435325A1 publication Critical patent/EP1435325A1/de
Withdrawn legal-status Critical Current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
    • B63B1/16—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
    • 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
    • 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
    • B63B2001/186—Sponsons; Arrangements thereof

Definitions

  • the limit is of roughly seven knots; whilst for a sixteen metre one the limit is of nine/ten knots.
  • a hull having a plane bottom or a v-shaped stepped bottom is capable of raising itself upon the water, if equipped with suitable propulsive power.
  • a ten metre long boat can, when planing, reach a speed of thirty knots.
  • This device although useful when promoting the planing of the boat even in the case of boats with low propulsive power, soon proved to be often dangerous during some of the navigation phases, in particular with rough seas, and even more when sailing before the wind.
  • the aim of the invention consists of a type of trim control devices, based on a different principle which, contrary to those in use today, reduce to the minimum the above described drag effect, and therefore allow the boat to plane with less power, and therefore, once planing, allow the boat to travel at the same speed with a saving of power and therefore of fuel.
  • trim side fins are represented, in principle, in Figure 5 and basically consist of planes or tables 5 and 6 adjacent to the starboard and left sides, astern of the boat, and have the characteristic of being retractable.
  • Figure 4 represents a hull seen from below, where the flowing direction of the water threads below the keel has been indicated; as can be seen some flow parallel to the longitudinal axis of the keel but many, especially astern because of the pressure supporting the hull, also escape sideways, as can be noticed by observing from astern the wake left behind the boat.
  • hull appendages object of the invention described above in principle require particular features and embodiments from a practical point of view, depending on their installation either on hulls that are being newly built or on existent ones, and also in relation to the dimensions, speed and end use of the boat.
  • Figure 6 shows in elevation a swinging fin 5 applied to the port - side 15 of the boat, and is shown as if the side 15 were transparent, the starboard fin is exactly symmetrical.
  • Figure 7 shows the same fin 5 , but in perspective.
  • the fin 5 is provided with a fulcrum 7 around which the fin rotates; such fulcrum will have a considerable diameter in relation to its thickness, in order to best sustain the push exercised by the water, but with a minimum transversal protrusion in order to limit the drag effect.
  • the fin is provided with an element, preferably a pin, 8 solidly anchored to its internal surface, the movement of which is controlled by the actuator.
  • the fin is provided with a connecting element 9, illustrated in detail in Figure 11, which allows both the permanent attachment of the fin to the boat side, and its upward and downward movement.
  • the connecting element 9 is articulated on a support 10, better represented in Figure 12, anchored on the transom next to the side edge.
  • the support is provided with a projecting flange 11 with a curvilinear profile whose radius corresponds to the distance between the flange itself and the centre of the fulcrum 7 around which the element 9 can run up and dawn remaining attached to the flange 11 itself.
  • the rotating movement of the fins is obtained in a conventional way, as in the case of the flaps, through hydraulic or electrical actuators, installed either on board or outboard, actuators that can directly act on the fin or even through suitable linkages
  • the fin part protruding beyond the chine is the dashed one indicated with 14.
  • the support 10 can be installed directly on the transom if the latter is vertical, whilst in the case of inclined transom, a layer 17 of wood or even of resin could be interposed.
  • the fin could be made in any material.
  • Figure 8 shows a Z cross section of a fin 5a, correspondent to section X-X of Figure 6, which can be built in stainless steel plate or aluminium casting;
  • Fig. 9 shows a structure also in stainless steel plate but with a rectangular box-type section;
  • Figure 10 shows a fin 5c, with a solid rectangular section suitable to installations studied before the construction of the boat and can be made in marine resinated plywood or in polyester resin, suitably ribbed in correspondence to the attachments, in the way of the rudders.
  • an anchoring element 9 with a L cross-section is sturdily jointed to the internal surface of the fin and slides on flange 11 with a curvilinear section of support 10.
  • Element 9 will preferably be garnished with plastic material such as DELRIN or similar as indicated in Figure 11, fixed with countersunk screws, in order to facilitate the sliding of part 11 and at the same time in order to avoid noises due to the fin hitting the hull, especially when the boat is riding at anchor.
  • FIG. 15 An alternative system of the anchorage of the fin to the side is the one shown in Figure 15 where it can be seen that support 10b is equipped with a curvilinear slot 25 in which pin 9b is articulated solidly to the fin surface , same as the previously described element 9 which controls the holding in place and the sliding action of the fin itself. Moreover the pin can be extended and at the same time it can be controlled by the actuator 12 as illustrated.
  • Figures 13 and 14 show in detail how can be made the fulcrum 7 around which fin 5 rotates when the fin is released or retracted.
  • Figure 13 (section Y-Y of Fig. 6), illustrates that in the hull side 15 there is a recess in which the rotation fulcrum 7 is housed, so that no protrusion from the side is created.
  • Fulcrum 7 consists on a metal ring 22 anchored to boat side 15 with screws 23, and on it a ring 20 of plastic material will preferably be mounted in order to avoid metal to metal contact which could cause problems. Fin 5 turns around this metal ring and is held by a disc or a cover 24 fixed with screws 21 to metal ring 22 in order to prevent it from detaching.
  • Figure 14 illustrates the same fulcrum, should creating a recess in the boat side be undesirable.
  • the fin will be adjacent to the boat side and the rotation fulcrum will protrude from the boat side itself for a few centimetres, but its effect could be reduced with a suitable, triangular shaping situated in front of the protruding disk.
  • the second embodiment is now described, conceptually based on the same principle, which involves the use of fins equipped with a vertical rectilinear movement, parallel to their relative boat sides, instead of a swinging movement.
  • Figure 16 shows the left fin 5, in a longitudinal vertical cross section.
  • the function is to avoid the boat making leeway, especially when the boat is sailing beating and not to affect the longitudinal trim.
  • the fins are preferably of a rectangular shape, at least the onboard part, whilst the protruding part below the chine will present a hydrodynamic profile as highlighted in Figure 19.
  • the fins are contained in a case 26, of rectangular section with parallel rectilinear guide rails 27 in order to maintain the parallelism of the upward and downward movement of fin
  • the guide rails will preferably be trimmed with strips of plastic material 28.
  • the case 26 could also be made of a simple frame equipped with guide rails 27, as the walls of the case are created directly into the boat structure. It is even better if the external walls are at one respectively with the boat side and the transom.
  • Case 26 containing the fin is equipped with a cover 30 to allow the direct extraction of fin 5 from inside the hull. In fact in all cases the level of this cover is above the floating line indicated as 31.
  • Figure 17 shows a cross section of the case, indicated with z-z in the figure 16, from which the guide rails 27 and their relative trimmings 28 can be more clearly seen.
  • Figure 18 is a detail of the previous one in order to represent more clearly the details 27 and 28.
  • Figure 19 ⁇ section w-w shows the hydrodynamic profile that the part of fin 5 in the area working under the keel must have.
  • the fin and the case that contains it can be built in any suitable material; so for example, in a boat with a polyester resin hull both the fin and the relative case will be preferably built in polyester resin too, whilst in the case of a boat built in aluminium , the same material will be used for the case, whilst the fin will be built in resin, better suited to being shaped with the due profile.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • Toys (AREA)
EP03425744A 2002-11-29 2003-11-19 Zurückziehbare Rumpfvorrichtungen für die Trimmsteuerung gleitenden Wasserfahrzeuge Withdrawn EP1435325A1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITGE20020106 2002-11-29
ITGE20020106 ITGE20020106A1 (it) 2002-11-29 2002-11-29 Appendici di carena retrattili per la regolazione d'assetto di natanti plananti.

Publications (1)

Publication Number Publication Date
EP1435325A1 true EP1435325A1 (de) 2004-07-07

Family

ID=11442896

Family Applications (1)

Application Number Title Priority Date Filing Date
EP03425744A Withdrawn EP1435325A1 (de) 2002-11-29 2003-11-19 Zurückziehbare Rumpfvorrichtungen für die Trimmsteuerung gleitenden Wasserfahrzeuge

Country Status (2)

Country Link
EP (1) EP1435325A1 (de)
IT (1) ITGE20020106A1 (de)

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7210422B1 (en) * 2003-03-07 2007-05-01 Aluminum Chambered Boats Llc, Inc. Fin stabilizer to reduce roll for boats in turns method and apparatus
US9174703B2 (en) 2013-10-11 2015-11-03 Mastercraft Boat Company, Llc Wake-modifying device for a boat
US9199695B2 (en) 2011-09-16 2015-12-01 Malibu Boats, Llc Surf wake system for a watercraft
US9272752B1 (en) 2013-03-15 2016-03-01 Correct Craft Ip Holdings, Llc Boat with reconfigurable running surface for wake adjustment
US9315236B2 (en) 2011-09-16 2016-04-19 Malibu Boats, Llc Surf wake system and method for a watercraft
US9580147B2 (en) 2011-09-16 2017-02-28 Malibu Boats, Llc Surf wake system for a watercraft
US9611006B1 (en) 2013-03-15 2017-04-04 Correct Craft Ip Holdings, Llc Boat with reconfigurable running surface for wake adjustment
US9669903B2 (en) 2014-02-04 2017-06-06 Malibu Boats, Llc Methods and apparatus for facilitating watercraft planing
US9802684B2 (en) 2013-10-11 2017-10-31 Mastercraft Boat Company, Llc Wake-modifying device for a boat
US9891620B2 (en) 2015-07-15 2018-02-13 Malibu Boats, Llc Control systems for water-sports watercraft
US10322777B2 (en) 2011-09-16 2019-06-18 Malibu Boats, Llc Surf wake system for a watercraft
US10358189B2 (en) 2013-10-11 2019-07-23 Mastercraft Boat Company, Llc Wake-modifying device for a boat
JP7033110B2 (ja) 2019-09-10 2022-03-09 三菱造船株式会社 船舶
US11370508B1 (en) 2019-04-05 2022-06-28 Malibu Boats, Llc Control system for water sports boat with foil displacement system
US11932356B1 (en) 2020-08-24 2024-03-19 Malibu Boats, Llc Powered swim platform
US11999446B2 (en) 2021-11-29 2024-06-04 Mastercraft Boat Company, Llc Wake-modifying device for a boat

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191301282A (en) * 1913-01-16 1914-01-15 Canaan De Cazen Improvements in Boats.
GB493373A (en) * 1937-04-06 1938-10-06 Noel Pemberton Billing Improvements in or relating to means for stabilising marine vessels
US4316425A (en) * 1978-08-10 1982-02-23 Jurgen Guido Lifting keel for sporting sail boats
US4690089A (en) * 1985-01-22 1987-09-01 Marggraf Fritz Boat with a raisable and lowerable keel
WO1996020105A1 (en) * 1994-12-23 1996-07-04 Marine Technology Development Ltd. Means and method for dynamic trim of a fast, planing or semi-planing boathull

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191301282A (en) * 1913-01-16 1914-01-15 Canaan De Cazen Improvements in Boats.
GB493373A (en) * 1937-04-06 1938-10-06 Noel Pemberton Billing Improvements in or relating to means for stabilising marine vessels
US4316425A (en) * 1978-08-10 1982-02-23 Jurgen Guido Lifting keel for sporting sail boats
US4690089A (en) * 1985-01-22 1987-09-01 Marggraf Fritz Boat with a raisable and lowerable keel
WO1996020105A1 (en) * 1994-12-23 1996-07-04 Marine Technology Development Ltd. Means and method for dynamic trim of a fast, planing or semi-planing boathull

Cited By (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7210422B1 (en) * 2003-03-07 2007-05-01 Aluminum Chambered Boats Llc, Inc. Fin stabilizer to reduce roll for boats in turns method and apparatus
US9694873B2 (en) 2011-09-16 2017-07-04 Malibu Boats, Llc Surf wake system for a watercraft
US11572136B2 (en) 2011-09-16 2023-02-07 Malibu Boats, Llc Surf wake system for a watercraft
US9914504B2 (en) 2011-09-16 2018-03-13 Malibu Boats, Llc Surf wake system for a watercraft
US9580147B2 (en) 2011-09-16 2017-02-28 Malibu Boats, Llc Surf wake system for a watercraft
US9315236B2 (en) 2011-09-16 2016-04-19 Malibu Boats, Llc Surf wake system and method for a watercraft
US10322777B2 (en) 2011-09-16 2019-06-18 Malibu Boats, Llc Surf wake system for a watercraft
US9199695B2 (en) 2011-09-16 2015-12-01 Malibu Boats, Llc Surf wake system for a watercraft
US10683061B2 (en) 2011-09-16 2020-06-16 Malibu Boats, Llc Surf wake system for a watercraft
US9334022B2 (en) 2011-11-12 2016-05-10 Malibu Boats, Llc Surf wake system for a watercraft
US9260161B2 (en) 2011-11-12 2016-02-16 Malibu Boats, Llc Surf wake system for a watercraft
US9611006B1 (en) 2013-03-15 2017-04-04 Correct Craft Ip Holdings, Llc Boat with reconfigurable running surface for wake adjustment
US9272752B1 (en) 2013-03-15 2016-03-01 Correct Craft Ip Holdings, Llc Boat with reconfigurable running surface for wake adjustment
US9708031B1 (en) 2013-03-15 2017-07-18 Correct Craft Ip Holdings, Llc Boat with reconfigurable running surface for wake adjustment
US10202171B1 (en) 2013-03-15 2019-02-12 Correct Craft Ip Holdings, Llc Boat with reconfigurable running surface for wake adjustment
US9969464B1 (en) 2013-03-15 2018-05-15 Correct Craft Ip Holdings, Llc Boat with reconfigurable running surface for wake adjustment
US10259534B2 (en) 2013-10-11 2019-04-16 Mastercraft Boat Company, Llc Wake-modifying device for a boat
US10899416B1 (en) 2013-10-11 2021-01-26 Mastercraft Boat Company, Llc Wake-modifying device for a boat
US11708136B2 (en) 2013-10-11 2023-07-25 Mastercraft Boat Company, Llc Wake-modifying device for a boat
US9802684B2 (en) 2013-10-11 2017-10-31 Mastercraft Boat Company, Llc Wake-modifying device for a boat
US9174703B2 (en) 2013-10-11 2015-11-03 Mastercraft Boat Company, Llc Wake-modifying device for a boat
US10266241B2 (en) 2013-10-11 2019-04-23 Mastercraft Boat Company, Llc Wake-modifying device for a boat
US9643697B2 (en) 2013-10-11 2017-05-09 Mastercraft Boat Company, Llc Wake-modifying device for a boat
US10358189B2 (en) 2013-10-11 2019-07-23 Mastercraft Boat Company, Llc Wake-modifying device for a boat
US10377453B2 (en) 2013-10-11 2019-08-13 Mastercraft Boat Company, Llc Wake-modifying device for a boat
US11214335B2 (en) 2013-10-11 2022-01-04 Mastercraft Boat Company, Llc Wake-modifying device for a boat
US10501156B1 (en) 2013-10-11 2019-12-10 Mastercraft Boat Company, Llc Wake-modifying device for a boat
US9446823B2 (en) 2013-10-11 2016-09-20 Mastercraft Boat Company, Llc Wake-modifying device for a boat
US10822055B2 (en) 2013-10-11 2020-11-03 Mastercraft Boat Company, Llc Wake-modifying device for a boat
US11046393B2 (en) 2013-10-11 2021-06-29 Mastercraft Boat Company, Llc Wake-modifying device for a boat
US9669903B2 (en) 2014-02-04 2017-06-06 Malibu Boats, Llc Methods and apparatus for facilitating watercraft planing
US10179628B2 (en) 2014-02-04 2019-01-15 Malibu Boats, Llc Methods and apparatus for facilitating watercraft planing
US9891620B2 (en) 2015-07-15 2018-02-13 Malibu Boats, Llc Control systems for water-sports watercraft
US11067979B2 (en) 2015-07-15 2021-07-20 Malibu Boats, Llc Control systems for water-sports watercraft
US10386834B2 (en) 2015-07-15 2019-08-20 Malibu Boats, Llc Control systems for water-sports watercraft
US11370508B1 (en) 2019-04-05 2022-06-28 Malibu Boats, Llc Control system for water sports boat with foil displacement system
US11518482B1 (en) 2019-04-05 2022-12-06 Malibu Boats, Llc Water sports boat with foil displacement system
US11851136B2 (en) 2019-04-05 2023-12-26 Malibu Boats, Llc Water sports boat with foil displacement system
JP7033110B2 (ja) 2019-09-10 2022-03-09 三菱造船株式会社 船舶
US11932356B1 (en) 2020-08-24 2024-03-19 Malibu Boats, Llc Powered swim platform
US12005995B2 (en) 2021-06-14 2024-06-11 Mastercraft Boat Company, Llc Wake-modifying device for a boat
US11999446B2 (en) 2021-11-29 2024-06-04 Mastercraft Boat Company, Llc Wake-modifying device for a boat

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