EP3978349A1 - Surfboard mit überlapp - Google Patents
Surfboard mit überlapp Download PDFInfo
- Publication number
- EP3978349A1 EP3978349A1 EP21209567.3A EP21209567A EP3978349A1 EP 3978349 A1 EP3978349 A1 EP 3978349A1 EP 21209567 A EP21209567 A EP 21209567A EP 3978349 A1 EP3978349 A1 EP 3978349A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- overlap
- drive unit
- gap
- component
- surfboard
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 29
- 239000004744 fabric Substances 0.000 description 9
- 239000000463 material Substances 0.000 description 7
- 229920000728 polyester Polymers 0.000 description 4
- JTJMJGYZQZDUJJ-UHFFFAOYSA-N phencyclidine Chemical compound C1CCCCN1C1(C=2C=CC=CC=2)CCCCC1 JTJMJGYZQZDUJJ-UHFFFAOYSA-N 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000035515 penetration Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000295 complement effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011888 foil Substances 0.000 description 1
- 210000001503 joint Anatomy 0.000 description 1
- 239000010985 leather Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 230000037303 wrinkles Effects 0.000 description 1
Images
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
- B63B32/10—Motor-propelled water sports boards
-
- 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
- B63B32/50—Boards characterised by their constructional features
- B63B32/51—Inflatable boards, e.g. drop-stitch inflatable boards
-
- 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
- B63B32/40—Twintip boards; Wakeboards; Surfboards; Windsurfing boards; Paddle boards, e.g. SUP boards; Accessories specially adapted therefor
-
- 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
- B63B32/50—Boards characterised by their constructional features
- B63B32/53—Sectionalised boards, e.g. modular, dismountable or foldable boards
-
- 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
- B63B32/57—Boards characterised by the material, e.g. laminated materials
-
- 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
- B63B32/77—Arrangements for fixation of accessories to the board, e.g. inserts or rails
Definitions
- the invention relates to a surfboard with a hull component with a rear mount, a drive unit that fits positively into the rear mount and a gap between the hull component and the drive unit on the underwater surface side.
- Inflatable surfboards with a drive unit are in the prior art, for example from DE 10 2015 103 503.0 famous.
- the well-known surfboard has an inflatable hull component with a rear recess and a drive unit which fits positively into the rear recess and is inserted into it.
- a gap is formed between the drive unit and the fuselage component on the underwater surface side.
- the surfboard powered by the drive unit can reach significant speeds of 25 knots and more while driving. This creates a water flow along the underwater surface of the surfboard and water pressure on the underwater surface of the surfboard, which forces water into the gap. This loosens the fluid connection between the hull component and the drive unit, which unnecessarily increases the water resistance of the board and significantly worsens the form fit.
- the surfboard according to the invention comprises a hull component with a rear recess, a drive unit which fits positively into the rear recess and is preferably already inserted into it, and a gap between the hull component on the underwater surface side and drive unit, wherein an overlap is arranged on the underwater surface of the fuselage component, which overlap covers the gap at least in sections.
- the fuselage component has two lateral arms, which preferably enclose the drive unit in a U-shape.
- the overlap is adapted to the course of the gap, and the overlap is therefore also U-shaped and covers at least the bow-side section of the gap.
- the bow-side gap section which is arranged transversely to the direction of travel, preferably perpendicularly, the greatest amount of water has hitherto penetrated into the gap. This can be effectively prevented.
- U-shaped is to be understood here in general.
- a U-shape is a strict U-shape but also a shell shape, a rectangular shape or similar.
- the fuselage component is preferably designed to be inflatable. Particularly in the case of inflatable fuselage components, the penetration of water into the gap leads to a widening of the gap and an increase in the driving resistance, because the fuselage component yields somewhat under the pressure of the penetrating water.
- the fuselage component can be formed from a drop stitch material and is rigidly inflatable.
- the side walls of the fuselage component are rounded and protrude outwards, that is to say they are convex. This convex shape of the fuselage component is formed more or less automatically because air is introduced into the fuselage component under high pressure.
- the peripheral side walls of the drive unit are concave in a corresponding manner. The width and length of the drive unit are selected so that they fit into the recess with a positive fit.
- a gap between the hull component and the drive unit forms, particularly precisely on the underwater surface. Water is pressed into this gap while driving.
- the overlap preferably covers the entire transverse portion of the U-shaped gap and at least partially covers the U-shaped side legs of the gap.
- the overlap is connected as smoothly as possible to the underwater surface of the hull component on the edge facing away from the recess, i.e. for example bevelled, and glued or sewn directly on the edge, in particular the edge leading in the direction of travel of the surfboard, so that water does not escape even with stronger currents can penetrate between the leading edge of the overlap and the hull member and favorably the water resistance of the board is not increased by the edge.
- a detachable fastening means is arranged between an inside of the overlap facing the drive unit and the underwater surface of the drive unit.
- “Inside” refers here and in the following to the orientation toward the drive unit or toward the U-shaped recess.
- a detachable connection for example a Velcro fastener, which interacts with a Velcro counterpart arranged on the underwater surface of the drive unit and thus also at least detachably attaches the overlap to the drive unit. This can further reduce the ingress of water and the risk of increasing the water resistance of the board due to the overlap can also be reduced.
- At least one fastening line is provided between the overlap and the fuselage component, with a nominal dimension of the fastening line of the fuselage component advantageously being larger than a nominal dimension of the fastening line of the overlap.
- the attachment lines of the fuselage component and overlap are not exactly identical, but because the attachment line of the fuselage component is slightly larger than that of the overlap, it is easy to insert the drive unit into the fuselage component when it is not inflated, and the overlap stretches smoothly , when the fuselage component is firmly inflated. This counteracts the formation of wrinkles.
- the overlap is open towards the rear end.
- the rear end open towards the overlap has the advantage that at least a small Bernoulli effect through the water flow can occur along the overlap and past the drive component, which more or less sucks water out of the gap.
- the surfboard 1 has a hull component 2 that is inflatable.
- the fuselage component 2 is formed in a substantially U-shape in a rear section.
- a drive unit 3 is placed in a U-shaped receptacle 4 of the fuselage component 2 .
- the fuselage component 2 can be made from a so-called drop stitch material.
- the drop stitch material is manufactured using the drop stitch process, in which two or more plastic fabric panels, preferably denier polyester fabric panels, are laid one on top of the other.
- the two webs of synthetic fabric are connected to one another by a large number, ie thousands, of polyester threads.
- the maximum distance between the two fabric panels is determined so that the space between the fabric panels filled with polyester can later be filled with compressed air and the fabric panels are largely parallel to one another.
- the polyester threads are sewn on both sides with the two fabric webs using a drop stitch sewing machine, for example.
- the two webs of fabric sewn together form the supporting structure, which gives the fuselage component 2 its mechanical strength in the inflated state.
- the two interconnected webs of fabric are cut to the desired shape.
- the upper and the lower web of fabric are preferably coated with PVC layers, preferably with three layers, pressed in layers and glued.
- the sides are glued with overlapping seam tape and pressed, so that the airtight fuselage component 2 is created.
- the drop stitch process makes it possible to manufacture the inflatable fuselage component 2 with excellent mechanical strength properties that withstand both high tensile and compressive and shearing loads.
- the drop stitch outer skin of the inflatable fuselage component 2 is airtight and, when inflated, extremely stable to deformation, so that a surfer can stand on the fuselage component 2 and surf while maintaining the external shape of the inflated fuselage component 2 .
- the fuselage component 2 is filled with air under high pressure. The filling can be done by means of an air pump or a compressor.
- the compressor can be fed with the electrical energy from accumulators built into the surfboard 1 .
- the hull component 2 made from the drop stitch material is preferably noise-dampening, so that the volume generated by the impact of the waves, but also by the drive, is dampened by the hull.
- the fuselage component 2 vibrates little during operation because vibrations are reduced by the drop stitch material. Since the hull member 2 is somewhat deformable, shocks from waves, etc. are advantageously absorbed.
- Another advantage over conventional surfboards 1 is that the softer torso causes fewer injuries, e.g. B. when the surfboard 1 collides with the surfer when the surfer falls.
- the rear area of the fuselage component 2 has the receptacle 4 for the drive unit 3 .
- the drive unit 3 can include a jet drive.
- the jet propulsion comprises an opening for the water inlet on an underwater surface 7 of the propulsion unit 3 and a water channel towards the rear end face of the propulsion unit 3 .
- the water outlet can be formed there by a nozzle.
- the nozzle can be pivoted or fixed.
- a rotor is provided in the water channel, which due to its high speed during operation sucks water into the water channel and sprays it out backwards through the nozzle and thus gives the surfboard 1 propulsion.
- the rotor is connected via a drive train to a motor, preferably an electric motor, which can optionally be controlled via a controller and which is supplied with electricity by means of the accumulator.
- the drive unit 3 is overall interchangeable.
- the concept of the rotor is to be understood broadly here. It can be a propeller, an impeller or similar.
- a gap 6 is created between the drive unit 3 and the fuselage component 2. Since the fuselage component 2 is convex in the receptacle 4 along a side inner wall that runs approximately three quarters around the drive unit 3, an outer circumference of the drive unit 3 is indeed adapted to this contour by a concave shape in a form-fitting manner , However, this adjustment can never be done so exactly that no gap 6, in particular not directly on the water surface 7, at the butt joint between the fuselage component 2 and the drive unit 3, arises.
- the gap 6 is in the 2 exaggeratedly broad. However, the problem becomes apparent that when the surfboard 1 is being driven, water is literally pushed into the gap 6 by the flow speed. The water flow is represented by the longer arrows. A travel direction F of the surfboard 1 is represented by a wide arrow.
- the overlap 8 is a flap made of PVC, PE, PET or another plastic material, which is also essentially shown in FIG figure 5 Is U-shaped and the gap 6 at least partially covers.
- the overlap 8 can also consist of leather or other natural materials or a metal foil.
- the overlap 8 is provided in particular for a gap section 6a positioned transversely in the direction of travel F, which is located between an edge of the drive unit 3 leading in the direction of travel F and a corresponding, transverse inner wall 2a of the fuselage component 2, and completely overlaps the transverse gap section 6a.
- the flap 8 is firmly sewn, glued or welded to the fuselage component 2 .
- a welding, gluing or seam line 9 is provided for this purpose, or several of the welding, gluing or seam lines 9 are provided, which follow or follow the edge 11 of the overlap 8 facing away from the receptacle 4 .
- the edge 11 leading or running laterally to the overlap 8 in the direction of travel F is preferably beveled in the direction of travel F and glued to the fuselage component 2 along the entire edge 11, so that even during travel no water can get between the underwater surface 7 of the hull component 2 and the overlap 8 can penetrate, but according to the water flow 4 is deflected under the flap.
- the overlap 8 may be detachably connected to the drive unit 3 in a portion overlapping with the drive unit 3; to a Velcro 12 according to 3 or the like between the edge of the overlap 8 facing the drive unit 3 and the drive unit 3 .
- the overlap 8 is preferably in close contact with the underwater surface 7 of the drive unit 3 without any creases.
- the 6 shows the overlap 8 in a bottom view.
- the bottom view shows the U-shaped receptacle 4, which is formed by the fuselage component 2.
- Arranged laterally on the drive unit 3 are inflatable arms of the fuselage component 2 which are circular in cross-section perpendicularly to the direction of travel F and grip the drive unit 3 between them.
- the overlap 8 connected to the fuselage component 2 is provided, which does not necessarily completely cover the gap 6, but does cover the gap section 6a running transversely, preferably perpendicularly, to the direction of travel F, into which a particularly large amount of water has conventionally penetrated is completely covered.
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Textile Engineering (AREA)
- Toys (AREA)
- Slide Fasteners (AREA)
- Connection Of Plates (AREA)
- Purses, Travelling Bags, Baskets, Or Suitcases (AREA)
- Laminated Bodies (AREA)
- Vehicle Step Arrangements And Article Storage (AREA)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102017130959.4A DE102017130959A1 (de) | 2017-12-21 | 2017-12-21 | Surfboard mit überlapp |
PCT/EP2018/086146 WO2019122098A1 (de) | 2017-12-21 | 2018-12-20 | Surfboard mit überlapp |
EP18827079.7A EP3529142B1 (de) | 2017-12-21 | 2018-12-20 | Surfboard mit überlapp |
Related Parent Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18827079.7A Division EP3529142B1 (de) | 2017-12-21 | 2018-12-20 | Surfboard mit überlapp |
EP18827079.7A Division-Into EP3529142B1 (de) | 2017-12-21 | 2018-12-20 | Surfboard mit überlapp |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3978349A1 true EP3978349A1 (de) | 2022-04-06 |
Family
ID=64901552
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP21209567.3A Pending EP3978349A1 (de) | 2017-12-21 | 2018-12-20 | Surfboard mit überlapp |
EP18827079.7A Active EP3529142B1 (de) | 2017-12-21 | 2018-12-20 | Surfboard mit überlapp |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18827079.7A Active EP3529142B1 (de) | 2017-12-21 | 2018-12-20 | Surfboard mit überlapp |
Country Status (10)
Country | Link |
---|---|
US (1) | US11472515B2 (es) |
EP (2) | EP3978349A1 (es) |
CN (1) | CN111527025A (es) |
AU (1) | AU2018390900B9 (es) |
DE (1) | DE102017130959A1 (es) |
ES (1) | ES2926631T3 (es) |
HR (1) | HRP20221062T1 (es) |
IL (1) | IL275553A (es) |
MX (1) | MX2020006555A (es) |
WO (1) | WO2019122098A1 (es) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US10597118B2 (en) | 2016-09-12 | 2020-03-24 | Kai Concepts, LLC | Watercraft device with hydrofoil and electric propeller system |
US10946939B1 (en) | 2020-04-22 | 2021-03-16 | Kai Concepts, LLC | Watercraft having a waterproof container and a waterproof electrical connector |
US11897583B2 (en) | 2020-04-22 | 2024-02-13 | Kai Concepts, LLC | Watercraft device with hydrofoil and electric propulsion system |
KR102477219B1 (ko) | 2020-12-07 | 2022-12-13 | (주)제트웨이크 | 공기 주입식 전동 서퍼보드 |
US11485457B1 (en) | 2021-06-14 | 2022-11-01 | Kai Concepts, LLC | Hydrojet propulsion system |
US11878775B2 (en) | 2021-07-13 | 2024-01-23 | Kai Concepts, LLC | Leash system and methods of use |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002193185A (ja) * | 2000-10-18 | 2002-07-10 | Yamaha Motor Co Ltd | エンジン付サーフボード |
JP2003026085A (ja) * | 2001-07-13 | 2003-01-29 | Yamaha Motor Co Ltd | パワーボード |
DE102015103503A1 (de) | 2014-10-07 | 2016-04-07 | Sashay Gmbh | Aufblasbares Surfbrett II |
CN205675195U (zh) * | 2016-05-18 | 2016-11-09 | 陈朝忠 | 一种冲浪板 |
CN205952254U (zh) * | 2016-06-24 | 2017-02-15 | 洛唯优 | 划水模块装置 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5255625A (en) * | 1991-03-26 | 1993-10-26 | Yamaha Hatsudoki Kabushiki Kaisha | Watercraft |
JPH06156366A (ja) * | 1992-11-27 | 1994-06-03 | Yamaha Motor Co Ltd | 被推進艇 |
CN103781700A (zh) | 2011-06-30 | 2014-05-07 | 布姆邦德有限责任公司 | 用于将动力卡匣安装于水上工具主体上的系统 |
DE202011051071U1 (de) | 2011-08-24 | 2011-11-09 | Sashay Gmbh | Steuerbares Surfbrett |
GB201309597D0 (en) * | 2013-05-29 | 2013-07-10 | Pendle Matthew | Improvements in surfboards |
DE102015108863A1 (de) * | 2015-06-03 | 2016-12-08 | Sashay Gmbh | Wassersportgerät |
CN206494089U (zh) * | 2017-02-17 | 2017-09-15 | 陈朝忠 | 一种冲浪板 |
-
2017
- 2017-12-21 DE DE102017130959.4A patent/DE102017130959A1/de active Pending
-
2018
- 2018-12-20 HR HRP20221062TT patent/HRP20221062T1/hr unknown
- 2018-12-20 EP EP21209567.3A patent/EP3978349A1/de active Pending
- 2018-12-20 AU AU2018390900A patent/AU2018390900B9/en active Active
- 2018-12-20 WO PCT/EP2018/086146 patent/WO2019122098A1/de unknown
- 2018-12-20 ES ES18827079T patent/ES2926631T3/es active Active
- 2018-12-20 EP EP18827079.7A patent/EP3529142B1/de active Active
- 2018-12-20 US US16/956,563 patent/US11472515B2/en active Active
- 2018-12-20 MX MX2020006555A patent/MX2020006555A/es unknown
- 2018-12-20 CN CN201880082746.8A patent/CN111527025A/zh active Pending
-
2020
- 2020-06-21 IL IL275553A patent/IL275553A/en unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002193185A (ja) * | 2000-10-18 | 2002-07-10 | Yamaha Motor Co Ltd | エンジン付サーフボード |
JP2003026085A (ja) * | 2001-07-13 | 2003-01-29 | Yamaha Motor Co Ltd | パワーボード |
DE102015103503A1 (de) | 2014-10-07 | 2016-04-07 | Sashay Gmbh | Aufblasbares Surfbrett II |
CN205675195U (zh) * | 2016-05-18 | 2016-11-09 | 陈朝忠 | 一种冲浪板 |
CN205952254U (zh) * | 2016-06-24 | 2017-02-15 | 洛唯优 | 划水模块装置 |
Also Published As
Publication number | Publication date |
---|---|
AU2018390900B9 (en) | 2023-05-25 |
CN111527025A (zh) | 2020-08-11 |
IL275553A (en) | 2020-08-31 |
HRP20221062T1 (hr) | 2022-11-11 |
US20210024180A1 (en) | 2021-01-28 |
WO2019122098A1 (de) | 2019-06-27 |
US11472515B2 (en) | 2022-10-18 |
DE102017130959A1 (de) | 2019-06-27 |
MX2020006555A (es) | 2020-11-24 |
AU2018390900A1 (en) | 2020-07-09 |
EP3529142A1 (de) | 2019-08-28 |
AU2018390900B2 (en) | 2021-12-23 |
ES2926631T3 (es) | 2022-10-27 |
EP3529142B1 (de) | 2022-07-27 |
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