CN102612463A - Integral foils for surf craft fins - Google Patents
Integral foils for surf craft fins Download PDFInfo
- Publication number
- CN102612463A CN102612463A CN2010800465475A CN201080046547A CN102612463A CN 102612463 A CN102612463 A CN 102612463A CN 2010800465475 A CN2010800465475 A CN 2010800465475A CN 201080046547 A CN201080046547 A CN 201080046547A CN 102612463 A CN102612463 A CN 102612463A
- Authority
- CN
- China
- Prior art keywords
- hydrofoil
- tail fin
- surfboat
- angle
- edge
- 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.)
- Pending
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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
- B63B32/00—Water sports boards; Accessories therefor
- B63B32/60—Board appendages, e.g. fins, hydrofoils or centre boards
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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
- B63B32/00—Water sports boards; Accessories therefor
- B63B32/60—Board appendages, e.g. fins, hydrofoils or centre boards
- B63B32/66—Arrangements for fixation to the board, e.g. fin boxes or foil boxes
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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
- B63B32/00—Water sports boards; Accessories therefor
- B63B32/60—Board appendages, e.g. fins, hydrofoils or centre boards
- B63B32/62—Board appendages, e.g. fins, hydrofoils or centre boards characterised by the material, e.g. laminated materials; characterised by their manufacturing process
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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
- B63B32/00—Water sports boards; Accessories therefor
- B63B32/60—Board appendages, e.g. fins, hydrofoils or centre boards
- B63B32/64—Adjustable, e.g. by adding sections, by removing sections or by changing orientation or profile
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Toys (AREA)
Abstract
An integral foil for a surf craft fin comprising: a base portion extending in generally planar fashion between a base edge and a transitional edge spaced from the base edge; a foil portion extending in a generally planar fashion at an angle to the base portion from the transitional edge of the base portion to an intermediate edge spaced from the transitional edge; a tip portion extending in a generally planar fashion substantially parallel to the base portion from the intermediate edge of the foil portion; fastening means for fastening the surf craft fin to a surf craft having a floating plane; and wherein the base portion, foil portion and tip portion are of an integral and coextensive form.
Description
Technical field
The present invention relates to be used for the integrated hydrofoil of surfboat tail fin (surf craft fins).The present invention is specially adapted to the surfboard tail fin.But the invention is not restricted to this application, also can be applicable to other surfboats.
Background technology
In order to explain accurately to the parts of surfboat; Be necessary to define relative technical term; Specific as follows: surfboat roughly is strip on the moving direction of its expectation; Therefore there are a longitudinal axis and a transverse axis rectangular, diaxon to be parallel to the water surface of estimating to carry surfboat slightly with the keel of this surfboat.To be called mast shafts for short for simplicity, with below all rectangular axle of long strip shaped piece and transverse axis.Long strip shaped piece and mast shafts will be called vertical plane for short below the residing plane.Long strip shaped piece and transverse axis will be called surface for short below the residing plane.Transverse axis and mast shafts will be called transverse plane for short below the residing plane.
Generally speaking, the tail fin direction of showing mast shafts greatly is projected on the surfboat bottom surface.Tail fin is usually with vertical plane parallel or be positioned at the both sides on vertical plane.Sometimes, can be equipped with tail fin in pairs, the distance between the two fin curved end is nearer than the distance between the two fin ends.Because the user often pursues that performance is higher, speed surfboat faster, therefore the design of tail fin for many years just becomes the developing focus of surfboat.
At sea in the ship, " wing " speech generally is used as the abbreviation of " hydrofoil ", so the meaning of indication is identical with " wing " speech as the one of which.Usually, the effect of hydrofoil is as the marine vessel Shi Weiqi that advances lift or other power to be provided.Therefore, in this manual, only if context indicates in addition, otherwise that " hydrofoil " speech refers to is a kind of because of marine vessel, or more particularly, produces the structure of antagonistic force because of the motion of surfboat in water.Hydrofoil is parallel to usually or is acute angle with the surface of surfboat.
The tail fin of surfboat bottom surface and the tail fin device surfboat in can use is easy to control.The tail fin design-calculated improves and typically refers to this lifting that can be handling.
The surfboat tail fin is furnished with winglet (wings) sometimes, plays the effect of hydrofoil.For example; The design that is called as weber (Webber) tail fin is just open before and after 2004; But the weber tail fin also can't effectively provide buoyancy for surfing or motion-related; Because just on the wave face, sliding, it does not go deep into below the wave face, and the tip designs of not separating, playing a decisive role with curve, Here it is causes the reason that tail fin slides when wave on the wave face.
The objective of the invention is to for the surfboat tail fin provide can alleviate one or more representative type tail fins and tail fin device the integrated hydrofoil of intrinsic problem.The present invention also aims to for the surfboat tail fin provide can be of value to promote surfboat can be handling integrated hydrofoil.Through following explanation, other purposes of the present invention and advantage may be obvious that.
Summary of the invention
In view of foregoing, the present invention relates generally to a kind of integrated hydrofoil that is used for the surfboat tail fin in one aspect, and it comprises:
Substantially smooth bottom, this bottom extend basal edge and and the Transition edges that separates of this basal edge between;
Substantially smooth hydrofoil part, this hydrofoil part and bottom extend to the middle edge that separates with this Transition edges at an angle and from the Transition edges of bottom;
Substantially smooth end (tip portion), this end from the middle edge of hydrofoil part extend and with the bottom almost parallel;
Be used for the surfboat tail fin is fixed in the anchor fitting of surfboat with surface;
Wherein bottom, hydrofoil partial sum end constitute the integral body of a coexistence.
Generally, tail fin is installed in the ship body of surfboat through the erecting device that links to each other with basal edge.When being installed in surfboat ship body, bottom and end preferably are roughly parallel to mast shafts.In a preferred embodiment, the hydrofoil part can with the bottom and the end be roughly rectangular and the Transition edges bottom can be roughly parallel to basal edge.In this form, surfboat ship hydrofoil on one's body partly is roughly parallel to the surface of surfboat.In other preferential embodiment, hydrofoil part can with bottom and end in obtuse angle, perhaps substrate, transition and middle edge can be not parallel slightly.Should be understood that, when tail fin is installed to the surfboat bottom surface, the precise adjustment of related angle has been determined the juxtaposition relationship of parts, and this can produce material impact to the performance of surfing fin of the present invention.
Angle between hydrofoil partial sum bottom, the end is preferably between 90 ° to 110 °.Basal edge and Transition edges intersect the angle angle of formation preferably between 0 ° to 20 °.Angle angle between hydrofoil Transition edges and the middle edge is preferably between 0 ° to 5 °.In addition, Transition edges and middle edge are preferably slick and sly, so that the intersecting plane of tail fin various piece of the present invention is realized seamlessly transitting.The radius of round edge preferably at 5mm between the 40mm.
In addition, tail fin of the present invention is preferably processed by the rubber-like flexible material, and it is crooked to allow each several part to produce with respect to other parts.For example, can realize sinuousness between other parts of hydrofoil partial sum up to 20 °.In addition, according to the present invention, preferably be equipped with a pair of reverse tail fin.
Above-mentioned bottom, hydrofoil partial sum end are roughly flat condition.But, surfboat tail fin field those skilled in the art will appreciate that the various piece of tail fin differs to establish a capital and puts down, the surface can be smooth and slight curving.In addition, the professional in surfboat tail fin field it is also understood that surface and the slyness of general planar or curved edge seamlessly transit.
Description of drawings
For making the present invention be easier to understand and practice, description describes the preferred embodiments of the present invention and diagram, wherein:
Fig. 1 to Fig. 4 is according to the transparent view for the integrated hydrofoil of surfboat fin design-calculated of the present invention;
Fig. 5 to Fig. 7 has shown the principle of work of the surfing fin shown in Fig. 1 to Fig. 4;
Fig. 8 to Figure 10 has further shown the principle of work of the surfing fin shown in Fig. 1 to Fig. 4;
Three scheme drawings that Figure 11 shows have together been explained the relation between the surfing fin each several part shown in Fig. 1 to Fig. 4;
Figure 12 has shown that with schematic form the integrated hydrofoil that is used for the surfboat tail fin and the tail fin that are generated by software bear pressure according to graphic motion.
The specific embodiment
The bottom carries out the transition to the hydrofoil part along Transition edges 16, and in Fig. 1 and Fig. 2, this Transition edges is roughly parallel to the basal edge 15 that extends along bottom substrate.In Fig. 3 and Fig. 4, Transition edges and bottom margin are not parallel, slight bending in bottom and end plane.Stretch out two outstanding mounting lugs 14 from the basal edge of bottom, these two mounting lugs separate arrangement and roughly are equal-sized rectangular prism.Disposing such mounting lug can place the tail fin that tail fin is installed in the main flow surfboat in the groove.
Between the hydrofoil partial sum end of tail fin is middle edge 17.In Fig. 3, middle edge is at an angle, but in Fig. 1, Fig. 2 and Fig. 4, middle edge has null circle.In addition, in Fig. 3, hydrofoil part and bottom, end are all in obtuse angle at least.To all embodiment shown in Figure 4, the end is roughly parallel to the bottom at Fig. 1.Tail fin among all embodiment all terminates in top (tip) 18, if according to the conventional method of making the surfboat tail fin, there is certain sinuousness on this top.
Tail fin shown in Figure 5 is not put down, but has certain sinuousness, and partly there are crooked transition in bottom and hydrofoil, and in the embodiment of this surfing fin, does not have end design (perhaps being at least non-parallel to the bottom).Hydrofoil and tail fin are 90 ° hydrofoil angle 25, but can reach maximum 20 ° sinuousness (flexion) 26.
Fig. 6 and Fig. 7 show to be mounted on the surfboard 28 and not to have the tail fin of end design (or more clear and omitted the end in order expressing); Purpose is in order to show the desirable sinuousness of hydrofoil part; Solid line has been represented the reference position of hydrofoil part and dotted line 19 and 20 has been represented its position that can bend to, and arrow 21 is represented bending directions.For example, hydrofoil part can form maximum 20 ° angle of bend 27 from physical slot, in Fig. 6 and tail fin shown in Figure 7, when hydrofoil partly is in physical slot and the bottom be 90 ° of loll 29.In addition, Fig. 6 and Fig. 7 have also shown the bottom and the relation between the surfboat 22 of tail fin have been housed.Fig. 8 is the scheme drawing of tail fin, and Fig. 9 is the lateral plan of tail fin, and the Reference numeral of each parts of tail fin is identical among two figure.The part of the hydrofoil of tail fin shown in Figure 10 lateral plan is the very large obtuse angle of angle with bottom and end.
Tail fin has leading edge 23 and trailing edge 24 designs, meets the general tail fin shape of surfboat tail fin, and promptly leading edge and trailing edge are crooked and tangent, form the curve that the top is arranged.
Shown in figure 11, the height ratio of bottom and end also can be different.For example; Substrate level 31 (being bottom level) can account for 1/3rd or 2/3rds of the whole height 32 of fin, this highly can also rely on top height 33 (be the end height add or deduct one with hydrofoil partial sum bottom, the cooresponding numerical value of angle that the end is) regulate.Hydrofoil partial width between transverse edge and the middle edge is generally 5% to 20% of tail fin height.
Shown in Figure 12 is that the integrated hydrofoil that is used for surfboat 40 that software generates has formed shade owing to pressure, and the region representation pressure that shade is heavier is bigger, and the region representation pressure that shade is lighter is less.Can find out that the high-pressure area 41 that shade is heavier is positioned at the leading edge 51 of fin.Zone 42,43,44 that shade is lighter and 45 pressure reduce gradually, and promptly the pressure on fin and hydrofoil surface reduces to trailing edge 52 in the past gradually.
In use, the ship body that the integrated hydrofoil that is used for the surfboat tail fin designed according to this invention is installed to surfboat can be surfboat provide better can be handling.For example, if tail fin of the present invention is installed to the substrate of surfboard plate body, when surfboard moved in water, this tail fin can play the effect of hydrofoil to a certain extent so.Whole tail fin all be flexible material process or only between rigid element with flexible material as linking; For instance; The surfer rotates surfboard or in water, carries out other control actions when surfing, can produce side force to tail fin, thereby it is crooked that tail fin is produced.Available normal method is installed in tail fin on one's body the surfboat ship; As the method for " FCS " by name in the field; But should be understood that, also can use other tail fin installation systems and use different erecting devices such as lug mentioned above that tail fin of the present invention is installed on the surfboat.Estimate that the surfer may more favor in detachable tail fin, so just can be according to different surfing conditions, using tail fin of the present invention to replace has not had the standard of hydrofoil tail fin.
What should believe is; Compare with those designs of having added the winglet that the surfer knew in the tail fin substrate; As add " Bruce Simon Rex pause (Bruce Lexton) type winglet " in tail fin substrate bottom, the integrated hydrofoil of design-calculated surfboat tail fin is that surfboat has brought lift and different tractive performancies according to the present invention.The integrated hydrofoil of design-calculated surfboat tail fin has strengthened the area of hydrofoil part according to the present invention, and need not to move or crooked winglet or hydrofoil part.The design goal of the integrated hydrofoil of surfboat tail fin of the present invention is that bigger negative pressure and the malleation of water generates through making the tail fin of flowing through farthest improves lift and make surfboat leave the water surface, thus the maximization that realization can be handling.
In addition, in the design, has only the tail fin top from hydrofoil part K/UP; Like this, through upset, the load of tail fin can be created maximum driving force with discharging; Rather than making whole tail fin crooked, the winglet of avoiding being connected the tail fin middle part produces unnecessary motion.
Because have the cause of winglet, this region area is less, so positive and negative current can't apply excessive pressure to winglet, because winglet is connected on the main tail fin and has produced unnecessary bending.This has limited the size of winglet, has also limited the size of issuable lift conversely.
In addition; Because in the main tail fin design of the integrated hydrofoil of surfboat tail fin of the present invention; Hydrofoil area partly in any side of surfboat is bigger; For surfboat provides maximum lift (can change through the width that changes the hydrofoil part), make whole ship body reach suitable balance, thereby under the situation that does not produce bending, realize the handling of the best.
Therefore, the angle described in the literary composition is the angle through contriver test, and the angle of hydrofoil and substrate can less than or greater than 90 °, can adjust the hydrofoil section width in view of the above.Verified, angle be about 30 ° and 60 ° and hydrofoil part angle be 5 °, the prototype of the integrated hydrofoil of design-calculated surfboat tail fin can produce lift effectively according to the present invention.Can change the angle (5 °) of hydrofoil part according to the size of required lift, can develop corresponding tail fin according to these slightly different lift angles in addition and place groove, and need not tail fin is transformed.
What should believe is that the integrated hydrofoil of design-calculated surfboat tail fin provides enough extra lift according to the present invention, compares with the ordinary straight tail fin, has reduced foot and on surfboard, has moved up and down for what quicken or slow down and carry out.In addition, because the width on tail fin top greater than the tail fin substrate, makes surfboat that the wave face is produced bigger grip, and the surfer is become in upset on the wave face and in unrestrained paddy be more prone to.
In the integrated hydrofoil of design-calculated surfboat tail fin, be used to provide the hydrofoil part of lift to process by a whole block material, to produce lift and the handling of maximum is provided with the base portion of tail fin according to the present invention.The design goal on tail fin hydrofoil surface is farthest to reduce under water resistance and makes surfboat in water, produce maximum lift, with tension force that farthest reduces water and the resistance of surfboat in water that tail fin is housed.
Though describe the present invention with reference to object lesson; But affiliated field those skilled in the art will appreciate that be; Do not break away from that this paper sets forth and the situation in the defined broad range of following claims and field under, can there be other forms of implementation in the present invention.
Claims (9)
1. integrated hydrofoil that is used for the surfboat tail fin comprises:
Substantially smooth bottom, this bottom extend basal edge and and the Transition edges that separates of this basal edge between;
Substantially smooth hydrofoil part, this hydrofoil part and bottom extend to the middle edge that separates with this Transition edges at an angle and from the Transition edges of bottom;
Substantially smooth end, this end from the middle edge of hydrofoil part extend and with the bottom almost parallel;
Be used for the surfboat tail fin is fixed in the anchor fitting of surfboat with surface; And
Wherein bottom, hydrofoil partial sum end constitute the integral body of a coexistence.
2. integrated hydrofoil according to claim 1, wherein said hydrofoil part is roughly rectangular with said bottom and said end.
3. integrated hydrofoil according to claim 2, the said Transition edges of wherein said bottom is roughly parallel to said basal edge.
4. integrated hydrofoil according to claim 3, wherein said hydrofoil partly is roughly parallel to the surface of surfboat.
5. integrated hydrofoil according to claim 3, wherein said hydrofoil part and bottom and end in obtuse angle and said substrate, transition and middle edge not parallel.
6. according to any described integrated hydrofoil in the claim 1 to 3, the angle between the said bottom of wherein said hydrofoil partial sum, the end is between 90 ° to 110 °.
7. according to any described integrated hydrofoil in the claim 1 to 3, wherein said basal edge and said Transition edges intersect the angle angle of formation between 0 ° to 20 °.
8. according to any described integrated hydrofoil in the claim 1 to 3, wherein the Transition edges of hydrofoil part and the angle angle between the middle edge are between 0 ° to 5 °.
9. according to any described integrated hydrofoil in the aforementioned claim; Wherein said tail fin is processed by the rubber-like flexible material; It is crooked that said tail fin can allow each several part to produce with respect to other parts, can make the highest sinuousness between other parts of hydrofoil partial sum reach 20 °.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2009905006A AU2009905006A0 (en) | 2009-10-15 | Integral foils for surf craft fins | |
| AU2009905006 | 2009-10-15 | ||
| PCT/AU2010/001353 WO2011044626A1 (en) | 2009-10-15 | 2010-10-14 | Integral foils for surf craft fins |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102612463A true CN102612463A (en) | 2012-07-25 |
Family
ID=43875713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010800465475A Pending CN102612463A (en) | 2009-10-15 | 2010-10-14 | Integral foils for surf craft fins |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20120208415A1 (en) |
| EP (1) | EP2488407A4 (en) |
| CN (1) | CN102612463A (en) |
| AU (1) | AU2010306404A1 (en) |
| WO (1) | WO2011044626A1 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10800495B1 (en) * | 2014-11-29 | 2020-10-13 | Paul Thomas | Enhanced planing devices and systems |
| FR3120350A1 (en) * | 2021-03-03 | 2022-09-09 | matthias gibaud | Asymmetrical fin Divisions for fins. |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3121890A (en) * | 1961-09-01 | 1964-02-25 | Jr Joseph F Rumsey | Water ski |
| US4050397A (en) * | 1976-04-26 | 1977-09-27 | The Boeing Company | Foil fence for hydrofoil craft |
| US5480331A (en) * | 1995-04-17 | 1996-01-02 | John R. Nickel | Flexible surfboard fin |
| WO2004043774A1 (en) * | 2002-11-13 | 2004-05-27 | Gibbs Technologies Ltd | Double flexible keel |
| CN1608016A (en) * | 2001-11-13 | 2005-04-20 | 森布有限公司 | Removable and adjustable surf fin system |
| CN2797201Y (en) * | 2005-05-27 | 2006-07-19 | 闵明 | Disassemble type sailboard |
| WO2007050473A2 (en) * | 2005-10-25 | 2007-05-03 | Douglas James Simpson | High-lift, low drag fin for surfboard and other watercraft |
| US20070259579A1 (en) * | 2006-05-05 | 2007-11-08 | Schmidt Kenneth E | Surfboard fin system |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| AUPP013797A0 (en) * | 1997-11-03 | 1997-11-27 | Goddard, Ronald Kenneth | Water-borne craft |
| AUPP210698A0 (en) * | 1998-03-02 | 1998-03-26 | Webber, Gregory Mark | Fin |
| US20060178062A1 (en) * | 2005-01-13 | 2006-08-10 | Caldwell James M | Multifunctional hydrofoil surfboard |
| WO2006135971A1 (en) * | 2005-06-21 | 2006-12-28 | Konstrukt Design Pty Ltd | An element for a watercraft |
-
2010
- 2010-10-14 AU AU2010306404A patent/AU2010306404A1/en not_active Abandoned
- 2010-10-14 CN CN2010800465475A patent/CN102612463A/en active Pending
- 2010-10-14 EP EP10822901.4A patent/EP2488407A4/en not_active Withdrawn
- 2010-10-14 US US13/502,122 patent/US20120208415A1/en not_active Abandoned
- 2010-10-14 WO PCT/AU2010/001353 patent/WO2011044626A1/en active Application Filing
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3121890A (en) * | 1961-09-01 | 1964-02-25 | Jr Joseph F Rumsey | Water ski |
| US4050397A (en) * | 1976-04-26 | 1977-09-27 | The Boeing Company | Foil fence for hydrofoil craft |
| US5480331A (en) * | 1995-04-17 | 1996-01-02 | John R. Nickel | Flexible surfboard fin |
| CN1608016A (en) * | 2001-11-13 | 2005-04-20 | 森布有限公司 | Removable and adjustable surf fin system |
| WO2004043774A1 (en) * | 2002-11-13 | 2004-05-27 | Gibbs Technologies Ltd | Double flexible keel |
| CN2797201Y (en) * | 2005-05-27 | 2006-07-19 | 闵明 | Disassemble type sailboard |
| WO2007050473A2 (en) * | 2005-10-25 | 2007-05-03 | Douglas James Simpson | High-lift, low drag fin for surfboard and other watercraft |
| US20070259579A1 (en) * | 2006-05-05 | 2007-11-08 | Schmidt Kenneth E | Surfboard fin system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011044626A1 (en) | 2011-04-21 |
| AU2010306404A1 (en) | 2012-05-31 |
| EP2488407A1 (en) | 2012-08-22 |
| EP2488407A4 (en) | 2014-06-04 |
| US20120208415A1 (en) | 2012-08-16 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20120725 |