EP3917828A1 - Kite and wing rig - Google Patents
Kite and wing rigInfo
- Publication number
- EP3917828A1 EP3917828A1 EP20739988.2A EP20739988A EP3917828A1 EP 3917828 A1 EP3917828 A1 EP 3917828A1 EP 20739988 A EP20739988 A EP 20739988A EP 3917828 A1 EP3917828 A1 EP 3917828A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- struts
- leading edge
- strut
- kite
- per unit
- 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
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H8/00—Sail or rigging arrangements specially adapted for water sports boards, e.g. for windsurfing or kitesurfing
- B63H8/10—Kite-sails; Kite-wings; Control thereof; Safety means therefor
- B63H8/12—Kites with inflatable closed compartments
Definitions
- the invention relates to a kite and a wing rig with an inflatable support structure according to the preamble of claim 1.
- kites intended for kite surfing or land kiting are designed either as tube kites or as mats with chambers that can be filled by the flow.
- tube kites In kitesurfing, tube kites have the great advantage that they swim in the event of a crash and can therefore be restarted without major problems (relaunch).
- the pressure chambers In the case of the “mats” mentioned above, the pressure chambers can run full of water, so that only experienced users can restart.
- tube kites The usual design for tube kites is that a support structure consisting of a front tube - hereinafter referred to as the leading edge - and struts arranged across it is formed from a robust Dacron® skin that surrounds a bladder made of a thin, airtight material , which is protected against damage by the comparatively robust outer skin.
- kites are disclosed, for example, in US 2006/0192055 A1 or DE 20201 924 U1.
- DE 102016 113858 B4 by the applicant it is proposed that the struts be interchangeably integrated into the supporting structure so that if a strut is damaged, for example in the event of a fall or excessive inflation, a simple repair by replacing the struts is possible.
- tube kites have a different number of struts.
- light wind kites are made with comparatively few struts, while race or freeride kites, in which the profile is to be kept stable even at high speeds, are made with a large number of struts.
- the light wind kite Mono® marketed by the applicant has only one center strut, while the freeride kite Rebel® is designed with five struts, ie one center strut, two quarterstruts and two tip struts.
- the kites are offered in different sizes to allow adaptation to different wind strengths.
- the aim is to make the kite as light as possible, but with a sufficiently rigid support structure so that the respective wind power can be effectively converted into forward or uplift.
- the invention is based on the object of creating a light kite and a light wing rig with sufficient stability.
- the kite according to the invention is designed as a tube kite with an inflatable support structure which has a leading edge (front tube) and at least one (transverse) strut attached to it and which spans a canopy.
- the wing rig is constructed accordingly.
- at least a partial area of the outer skin of a strut is made of a different material, preferably of a lighter material with a lower weight per unit area than the material of the outer skin of the leading edge or other struts manufactured.
- material is preferably understood to mean the material from which the outer skin that surrounds the bladder is made - any reinforcements provided in the transition area to the leading edge or at the trailing edge ends of the struts and at the unwanted ones Front areas of the leading edge that are at risk of crashing the kite should preferably not be subsumed under the term “material”.
- the support structure has a plurality of struts, the material of which is then made from materials with different weights per unit area in order to optimize the rigidity of the support structure.
- a center strut can be made from a material with a higher weight per unit area than struts on the outside.
- the center strut and the two adjacent quarterstruts can be made of comparatively heavy material, while the tip struts are made of a particularly light material.
- the center strand is made of the same material as the leading edge.
- the heavier material which is used, for example, in areas of the leading edge and for the center strand, has a weight per unit area of more than 120 g / m 2 , preferably more than 130 g / m 2 , and that lightweight material has a weight per unit area of less than 100 g / m 2 , preferably less than 90 g / m 2 .
- the heavier material can be the commonly used Dacron®
- the light material can be a material that is commonly used for canopy or in sailing for spinnakers (spinnaker material).
- Polyester-based cloths or the particularly light Aluula® cloth have proven to be particularly suitable materials.
- the stiffness / elasticity of the strut can be further optimized if it is made of the heavier material in sections, so that, for example, the strut towards the trailing edge is made of the lighter material - accordingly, the strut is comparatively stable in the connection area to the leading edge / Rigid, while the trailing edge-side end sections are flexible and thus enable better steering and more dynamic handling.
- the comparatively stiff material with a high basis weight forms the leading-edge-side part of the strut, while the trailing-edge-side part is made of a softer, flexible material.
- the applicant reserves the right to make its own independent patent claim on a supporting structure in which materials with different stiffness / flexibility are selected for the strut (s) or the leading edge to form the outer skin, whereby the weight per unit area can then take a back seat .
- the suitable materials care can also be taken to ensure that the lighter material is also made correspondingly more flexible and elastic than the material with the higher weight per unit area.
- the leading edge can also be formed from a material mix consisting of a lighter material and a heavier material. For example, it is conceivable to make the leading edge towards the tips from a material with a lower weight per unit area, while the middle area of the leading edge is made from a comparatively heavy, stiff material.
- the support structure can be designed more flexibly than with conventional solutions, so that the flight characteristics are positively influenced.
- the higher flex improves the turning behavior of the kite and the low weight improves acceleration in gusts / maneuvers.
- the only figure shows a three-dimensional front view of a kite optimized for freeride use.
- kite 1 has a support structure 2, consisting of a front tube or leading edge 4 and five transverse struts, referred to below as struts 6, which together span a canopy 8.
- the leading edge 4 is filled by means of a valve, not shown, which is formed on the leading edge 4 and also enables the struts 6 to be filled via a one-pump system.
- the figure shows the Rebel® model in which five Struts 6 are used.
- In the middle area of the leading edge 4 (front tube) there is a center strut 10, two quarterstruts 12a, 12b are adjacent to this and tip struts 14a, 14b are provided in their area to stiffen tips 15, 16.
- the diameter of the leading edge 4 decreases towards the two tips 15, 16.
- the struts 6 also taper away from the leading edge 4 towards the trailing edge 18 located at the rear in the direction of flow.
- the outer skin of the leading edge 4 and the struts 6 is made of a comparatively wear-resistant material and surrounds a bladder, not shown, which can be inflated via the valve mentioned at the beginning.
- This bladder only contributes to the airtightness of the support structure 2 and is accordingly designed with a view to compressive strength.
- the Struts 6 and Leading Edge 4 - apart from the necessary reinforcements - are made of Dacron®. This material is also used in the manufacture of sails, for example.
- Dacron® material usually has a weight per unit area of more than 120 g / m 2 .
- the outer skin of at least one strut 6 is made, at least in sections, from a material with a lower weight per unit area.
- This “lighter” material is then designed, for example, with a weight per unit area of less than 100 g / m 2 , preferably less than 90 g / m 2 .
- materials have also been available on the market which have a weight per unit area of about 70 g / m 2 with strength / rigidity and abrasion resistance comparable to Dacron®.
- Such a material is offered, for example, under the brand Aluula®. It is particularly preferred if the material used for the said strut 6 has a basis weight between 90 g / m 2 and 70 g / m 2 , while the material of the outer skin of the leading edge 4 and / or the other struts 6 has a basis weight between 130 g / m 2 and 160 g / m 2 .
- the leading edge 4 and possibly the two quarterstruts 12a, 12b can be made of Dacron® with a comparatively high basis weight, while the tip struts 14a, 14b are made of a lighter material, for example Aluula® are made.
- the quarterstruts 12a, 12b from a material whose weight per unit area is between that of the center strand 10 and the tip struts 14a, 14b, so that the tip area is optimized in terms of flexibility.
- a comparatively stiff, heavy material is used in the middle area of the kite 1, while the tip areas are made of a light, soft, flexible material.
- an area A on the leading edge side of a strut 6, for example the center strand 10, can be made from the same material as the leading edge 18.
- This area A made of a comparatively heavy, stiff material (Dacron®) can extend, for example, over 10 cm to 20 cm.
- the material is then made with a lower weight per unit area, so that the trailing edge-side sections of the respective struts 6 can be flexibly formed from a soft material. This makes it possible, for example, to design the trailing edge-side part of the struts 6 on the trailing edge side with a slightly larger diameter than in conventional solutions in order to optimize the rigidity.
- a corresponding concept can also be provided for the Leading Edge 4.
- the middle area M of the leading edge 4 can be made of the heavier material, while the tip-side areas R are then made of a lighter material.
- zones indicated in the figure can also be designed differently. In principle, it is also possible to design more than two areas of a strut 6 or several struts 6 with different materials. The same applies, of course, to the Leading Edge 4.
- This reinforcement 22 can, for example, also be made of a heavy Dacron® material. In principle, however, it is possible to form reinforcements at least on the tip side by doubling lighter materials so that adequate protection is guaranteed with low weight.
- the invention is in no way restricted to the use of conventional Dacron® / spinnaker materials and cloths.
- laminates, Foils or the like are used, which are suitable for use as an outer skin in kites.
- wing rigs can also be designed in the manner described above.
- a support structure of a kite or a wing rig in which at least one strut is designed in sections from a different material as a front tube / leading edge or as further struts.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Toys (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019129493.2A DE102019129493A1 (en) | 2019-10-31 | 2019-10-31 | Kite and wing rig |
PCT/EP2020/069734 WO2021083562A1 (en) | 2019-10-31 | 2020-07-13 | Kite and wing rig |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3917828A1 true EP3917828A1 (en) | 2021-12-08 |
Family
ID=71608007
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20739988.2A Pending EP3917828A1 (en) | 2019-10-31 | 2020-07-13 | Kite and wing rig |
Country Status (5)
Country | Link |
---|---|
US (1) | US20220363358A1 (en) |
EP (1) | EP3917828A1 (en) |
CN (1) | CN114650946A (en) |
DE (3) | DE102019129493A1 (en) |
WO (1) | WO2021083562A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102022122017A1 (en) | 2022-08-31 | 2024-02-29 | Pryde Group GmbH | WING FOR WIND POWER POWERED SPORTS |
Family Cites Families (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2101899A (en) * | 1981-07-13 | 1983-01-26 | American Greetings Corp | Kite with rigid display hull and flexible camouflaged keel |
FR2581961A1 (en) * | 1984-11-16 | 1986-11-21 | Dominique Legaignoux | PROPULSIVE WING |
DE20201924U1 (en) * | 2002-02-08 | 2002-07-04 | Schwarz, Ulrich, 89250 Senden | Adjustable kite |
US7104504B2 (en) * | 2004-09-24 | 2006-09-12 | Alex Peterson | Inflatable wing with active canopy profile control |
US20060192055A1 (en) * | 2005-02-04 | 2006-08-31 | Alex Shogren | Inflatable wing |
CN101164647A (en) * | 2006-10-20 | 2008-04-23 | 孟庆涛 | Variable pneumatic structure kite |
CN101487192A (en) * | 2007-01-12 | 2009-07-22 | 香港快利有限公司 | Material for manufacturing kite or wing and kite or wing using same |
US20090179112A1 (en) * | 2008-01-14 | 2009-07-16 | Xiao Wen Gu | Material for fabrication of a kite or a wing and a kite or wing incorporating the material |
US8096510B2 (en) * | 2008-05-07 | 2012-01-17 | Ride Best, Llc | Traction kite with deformable leading edge |
ES2470767T3 (en) * | 2009-06-23 | 2014-06-24 | Lise S�Nderborg Aps | Method of making a woven canvas, a woven canvas, a candle made of a woven canvas and a laminated canvas made of woven canvas |
US20140070055A1 (en) * | 2012-09-13 | 2014-03-13 | Peter Stiewe | Control sail for a kite |
US9957043B2 (en) * | 2014-01-31 | 2018-05-01 | Ocean Rodeo Sports Inc. | Method for monitoring kite air pressure when kite boarding |
WO2017059275A1 (en) * | 2015-10-01 | 2017-04-06 | Morris Clayton | Adjustable area kite or wing |
DE102016113858B4 (en) * | 2016-03-07 | 2018-03-29 | Boards & More Gmbh | kite |
EP3225545A1 (en) * | 2016-04-01 | 2017-10-04 | Pure Action Sports Europe DE GmbH | Sail for a kite, kite and method for manufacturing said sail |
WO2019006542A1 (en) * | 2017-07-06 | 2019-01-10 | Epic Ventures Inc. | Composite ultra-high molecular weight polyethylene (uhmwpe) material and method of manufacture of the same |
DE102019101656A1 (en) | 2019-01-23 | 2020-07-23 | Boards & More Gmbh | Wing rig |
-
2019
- 2019-10-31 DE DE102019129493.2A patent/DE102019129493A1/en active Pending
-
2020
- 2020-07-13 DE DE202020005581.6U patent/DE202020005581U1/en active Active
- 2020-07-13 EP EP20739988.2A patent/EP3917828A1/en active Pending
- 2020-07-13 CN CN202080076765.7A patent/CN114650946A/en active Pending
- 2020-07-13 WO PCT/EP2020/069734 patent/WO2021083562A1/en unknown
- 2020-07-13 US US17/772,049 patent/US20220363358A1/en not_active Abandoned
- 2020-07-13 DE DE202020005474.7U patent/DE202020005474U1/en active Active
Also Published As
Publication number | Publication date |
---|---|
DE202020005581U1 (en) | 2021-09-22 |
DE102019129493A1 (en) | 2021-05-06 |
DE202020005474U1 (en) | 2021-05-06 |
US20220363358A1 (en) | 2022-11-17 |
CN114650946A (en) | 2022-06-21 |
WO2021083562A1 (en) | 2021-05-06 |
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Legal Events
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Effective date: 20210830 |
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DAX | Request for extension of the european patent (deleted) | ||
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Effective date: 20230614 |