EP1435325A1 - Appendices rétractables de coque pour la régulation fine d'embarcations planantes - Google Patents
Appendices rétractables de coque pour la régulation fine d'embarcations planantes Download PDFInfo
- 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
- Authority
- 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- Withdrawn
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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
- 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.
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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)
- Toys (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITGE20020106 ITGE20020106A1 (it) | 2002-11-29 | 2002-11-29 | Appendici di carena retrattili per la regolazione d'assetto di natanti plananti. |
ITGE20020106 | 2002-11-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP1435325A1 true EP1435325A1 (fr) | 2004-07-07 |
Family
ID=11442896
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP03425744A Withdrawn EP1435325A1 (fr) | 2002-11-29 | 2003-11-19 | Appendices rétractables de coque pour la régulation fine d'embarcations planantes |
Country Status (2)
Country | Link |
---|---|
EP (1) | EP1435325A1 (fr) |
IT (1) | ITGE20020106A1 (fr) |
Cited By (15)
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 |
Citations (5)
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 (fr) * | 1994-12-23 | 1996-07-04 | Marine Technology Development Ltd. | Moyens et procede de reglage dynamique de l'assiette d'une coque de bateau rapide planante ou semi-planante |
-
2002
- 2002-11-29 IT ITGE20020106 patent/ITGE20020106A1/it unknown
-
2003
- 2003-11-19 EP EP03425744A patent/EP1435325A1/fr not_active Withdrawn
Patent Citations (5)
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 (fr) * | 1994-12-23 | 1996-07-04 | Marine Technology Development Ltd. | Moyens et procede de reglage dynamique de l'assiette d'une coque de bateau rapide planante ou semi-planante |
Cited By (43)
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 |
US10322777B2 (en) | 2011-09-16 | 2019-06-18 | 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 |
US12097930B2 (en) | 2011-09-16 | 2024-09-24 | 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 |
US10683061B2 (en) | 2011-09-16 | 2020-06-16 | 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 |
US11572136B2 (en) | 2011-09-16 | 2023-02-07 | 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 |
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 |
US9969464B1 (en) | 2013-03-15 | 2018-05-15 | 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 |
US9272752B1 (en) | 2013-03-15 | 2016-03-01 | 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 |
US10259534B2 (en) | 2013-10-11 | 2019-04-16 | 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 |
US9174703B2 (en) | 2013-10-11 | 2015-11-03 | 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 |
US10266241B2 (en) | 2013-10-11 | 2019-04-23 | Mastercraft Boat Company, Llc | Wake-modifying device for a boat |
US12005995B2 (en) | 2013-10-11 | 2024-06-11 | 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 |
US11999446B2 (en) | 2013-10-11 | 2024-06-04 | 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 |
US9643697B2 (en) | 2013-10-11 | 2017-05-09 | 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 |
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 |
US9446823B2 (en) | 2013-10-11 | 2016-09-20 | 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 |
US10179628B2 (en) | 2014-02-04 | 2019-01-15 | Malibu Boats, Llc | Methods and apparatus for facilitating watercraft planing |
US9669903B2 (en) | 2014-02-04 | 2017-06-06 | Malibu Boats, Llc | Methods and apparatus for facilitating watercraft planing |
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 |
US9891620B2 (en) | 2015-07-15 | 2018-02-13 | 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 |
Also Published As
Publication number | Publication date |
---|---|
ITGE20020106A1 (it) | 2003-02-27 |
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