EP3728015B1 - Planche de surf gonflable pourvue d'une unité d'entrainement - Google Patents

Planche de surf gonflable pourvue d'une unité d'entrainement Download PDF

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Publication number
EP3728015B1
EP3728015B1 EP18833235.7A EP18833235A EP3728015B1 EP 3728015 B1 EP3728015 B1 EP 3728015B1 EP 18833235 A EP18833235 A EP 18833235A EP 3728015 B1 EP3728015 B1 EP 3728015B1
Authority
EP
European Patent Office
Prior art keywords
drive unit
belt
inflatable
arms
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.)
Active
Application number
EP18833235.7A
Other languages
German (de)
English (en)
Other versions
EP3728015C0 (fr
EP3728015A1 (fr
Inventor
Nicolai WEISENBURGER
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WBV Weisenburger Bau Verwaltung GmbH
Original Assignee
WBV Weisenburger Bau Verwaltung GmbH
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by WBV Weisenburger Bau Verwaltung GmbH filed Critical WBV Weisenburger Bau Verwaltung GmbH
Publication of EP3728015A1 publication Critical patent/EP3728015A1/fr
Application granted granted Critical
Publication of EP3728015C0 publication Critical patent/EP3728015C0/fr
Publication of EP3728015B1 publication Critical patent/EP3728015B1/fr
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Anticipated expiration legal-status Critical

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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
    • B63B32/50—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
    • B63B32/10—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 
    • B63B2221/00—Methods and means for joining members or elements
    • B63B2221/16—Methods and means for joining members or elements by means of ties, ribbons or the like

Definitions

  • the invention relates to an inflatable surfboard with a drive unit.
  • Surfboards are in the prior art, for example from DE 10 2015 103 503.0 known.
  • 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.
  • the problem with the known surfboard, however, is that the drive unit can slip out of the recess at the rear.
  • CN 205675195 U describes an inflatable surfboard with a fixed cover plate and a fixed base plate, with a drive unit being inserted into the fixed recess at the rear.
  • the drive unit is secured with a hook to prevent it from slipping out at the back.
  • JP200326085 discloses a surfboard with an inflatable U-shaped ring and a rear end plate 13 in front of which a drive unit is placed.
  • the inflatable surfboard has an inflatable hull component with two lateral arms that form a receptacle, and a drive unit that has an outer contour that fits into the receptacle with a positive fit at least in sections.
  • At least one fastening means is provided at the rear end of the surfboard.
  • the at least one fastener is non-elastic.
  • the inflatable fuselage component is preferably made from a drop stitch material and is inflated under high pressure using a compressor, an air pump or the like. inflated.
  • the fuselage component has two lateral arms, so that an approximately U-shaped cutout is formed at the rear end, seen from above, which forms a receptacle for a drive unit.
  • the outer contour, ie the lateral wall of the drive unit, is adapted to the contour of the lateral inner wall of the inflated receptacle, so that a largely form-fitting connection is established when the drive unit is inserted into the receptacle.
  • the inner wall of the receptacle of the inflatable fuselage component is advantageously curved outwards, that is to say it is of convex design.
  • the lateral wall surrounding the drive unit in a U-shape is correspondingly concave. This design prevents the drive unit from slipping out upwards towards the tread surface or downwards towards the underwater surface.
  • the at least one fastening means is designed as at least one strap.
  • the strap is not elastic.
  • the belt can be in one piece or in two pieces; two or more belts can also be selected, each of which is designed in two pieces.
  • the belt is fastened to the two lateral arms and runs along the drive unit on the rear side, and the at least one belt can be tensioned by means of at least one lever mechanism.
  • a one-piece belt With a one-piece belt, two belt ends are arranged in a fixed position on the sides of the arms, i. H. glued or sewn there or attached in some other way.
  • the belt then preferably runs along the rear part of the drive unit in the inflated state and prevents it from slipping out.
  • the belt can also be designed in two parts, in belt sections, and have a closure that connects both belt sections to one another via a lever mechanism, a ratchet, or the like. connects. This can have the advantage over the one-piece strap that the drive unit can also be pushed into the inflated surfboard from behind, while with the one-piece strap some air must first be let out of the fuselage component in order to be able to insert or remove the drive unit. In both cases, the belt is tightened by inflating the surfboard with high pressure.
  • two straps are provided at the rear end, each having two strap sections, each of which in turn can be connected to one another via a fastener, for example in the form of a lever mechanism, i.e. an eyelet and a lever fastener, a toggle lever or a ratchet or a ratchet or similar devices.
  • a fastener for example in the form of a lever mechanism, i.e. an eyelet and a lever fastener, a toggle lever or a ratchet or a ratchet or similar devices.
  • each of the belts can have a belt section which is attached to the side of an arm or to a rear end of the arm, and an associated corresponding belt section which is attached to the side next to the nozzle on rear end of the drive unit is attached.
  • the same construction can also be provided on the other arm of the fuselage component. It is now possible to arrange the eyelet on one strap section and the lock on the corresponding strap section or vice versa. The same applies to the strap on the other
  • the lateral arms run behind the drive unit in a hook-like manner and engage behind the drive unit so that it is prevented from slipping out.
  • the arms run laterally along the drive unit and at the rear end they hook inwards.
  • the drive unit is first placed in the fuselage component that is not or only partially inflated.
  • the fuselage component is then tightened and inflated with a compressor or an air pump, and the drive unit is prevented from slipping out upwards or downwards by the form-fitting connection between the concave and the convex formation of the side wall.
  • the hook-shaped design of the arms also prevents the drive unit from slipping out of the rear of the surfboard.
  • attachment means is an integral part of the arms through the hooks. There are no separate fasteners. According to the invention, it is also possible to combine this embodiment with an additional fastening means according to the other embodiments.
  • a surfboard 1 shows a surfboard 1 according to the invention.
  • a surfboard 1 is to be understood as a device on which a surfer stands, kneels or sits, and which floats on the water and ideally has buoyancy sufficient to carry the surfer. If necessary, the buoyancy can only be chosen so large that, together with the advance of a drive, it is sufficient to carry the surfer.
  • the surfboard 1 comprises a bow 2 and a stern 3.
  • the surfboard 1 is essentially designed in two parts and comprises an inflatable hull component 4, which completely forms the bow-side and middle area of the surfboard, and a drive unit 6 in the stern-side section of the surfboard 1, which flanked along its longitudinal sides by inflatable arms 7a, 7b of the fuselage component 4, possibly even at least partially surrounded.
  • the drive unit 6 includes a jet drive 8.
  • the jet drive 8 is only shown schematically here.
  • the jet drive 8 comprises a water inlet 9 in an underwater surface 5 of the drive unit 6 and a water channel 11 with a water outlet 12 arranged on a rear end face 10 of the stern Tread 13 arranged axis of rotation is rotatable.
  • a rotor 14 is arranged in the water channel 11, which sucks water into the water channel 11 and sprays it out of the nozzle in the opposite direction of travel, thereby giving the surfer propulsion with the surfboard.
  • Rotor 14 is understood to mean propeller and impeller here.
  • a motor 16 for the rotor 14, which drives the rotor 14 via a drive train, and a controller for the motor 16, with which a power of the motor 16 can be controlled, are arranged in a hull of the surfboard 1 in the drive unit. In particular, the speed of the surfboard 1 can be controlled with it.
  • the fuselage component 4 is preferably 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 or more plastic webs are through a variety, d. H. Thousands of polyester threads tied together.
  • the two lengths of fabric are kept at a distance from one another, so that the space between the lengths of fabric filled with polyester threads can later be filled with compressed air.
  • the polyester threads are sewn on both sides with the two fabric panels using a drop stitch sewing machine, for example.
  • the two fabric panels sewn together form the supporting structure, which gives the fuselage component its mechanical strength when inflated.
  • the two interconnected webs of fabric are cut to the desired shape.
  • the upper and lower fabric webs 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 4 is created.
  • the drop stitch process makes it possible to manufacture the inflatable hull component 4 with excellent mechanical strength properties, which can withstand both high tensile and compressive loads and shearing loads.
  • the drop stitch outer skin of the inflatable fuselage component 4 is airtight and, when inflated, extremely stable to deformation, so that a surfer can stand on the fuselage component 4 and surf while maintaining the external shape of the inflated fuselage component 4 .
  • the fuselage component 4 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, for example, with the electrical energy from the accumulator 17 built into the surfboard.
  • the hull component 4 made from the drop stitch material is preferably low-noise because the noise generated by the impact of the waves, but also by the drive, is dampened by the hull.
  • the fuselage component 4 is preferably low in vibration during operation because vibrations are reduced by the drop stitch material. Since the hull member 4 is slightly deformable, shocks from waves, etc. are advantageously absorbed. Another advantage over conventional surfboards is that the softer torso causes fewer injuries, e.g. B. when the surfboard 1 collides with the surfer when the surfer falls.
  • the inflatable hull component 4 has a rear recess 20, for example in the Figure 2a and 2c is shown.
  • the recess 20 is essentially U-shaped and has a convex side wall, ie a side wall that curves into the recess 20 .
  • the drive unit 6 fits into the recess 20 in a form-fitting manner. It has a U-shaped, concave wall which partially surrounds the drive unit 6 and is correspondingly shaped inwards. The form-fitting engagement of the convex into the concave wall prevents the drive unit 6 from slipping out upwards and downwards, ie. H. in the direction of the tread 13 or in the direction of the underwater surface 5, prevented.
  • the height of the drive unit 6 is such that it advantageously forms a common tread 13 together with the surfboard 1 .
  • a tread 13 of the surfboard 1 is formed in one plane with a tread 13 of the drive unit 6 .
  • the entire step surface 13 has only a narrow U-shaped gap 22 which forms the contact line between the drive unit 6 and the fuselage component 4 .
  • the two lateral arms 7a, 7b of the inflatable fuselage component 4 are, in a cross section perpendicular to a longitudinal direction L, essentially approximately circular, curved outwards at least along the entire circumference.
  • a fastening means is shown in the form of two belt sections 23a, 23b, which are each guided from the outside inwards along the rear end face 10 of the surfboard 1.
  • Each of the two belt sections 23a, 23b is attached to the side or to the rear end of an inflatable arm 7a, 7b.
  • the attachment may be an adhesive bond or a sewn bond, or a combination of both, or some other bond.
  • the belt sections 23a, 23b have ends 24a, 24b pointing inwards towards the recess.
  • the ends 24a, 24b cooperate with lever locks 26a, 26b in the 2 are shown in a closed state.
  • the lever locks 26a, 26b are arranged at a distance from the nozzle of the jet drive 8 on both sides.
  • the lever locks can in particular be designed as toggle lever locks or as ratchets.
  • Figure 2b shows the lever locks 26a, 26b in an open state.
  • the lever locks are folded outwards in the direction of the arms 7a, 7b and release the ends 24a, 24b of the two belt sections 23a, 23b.
  • the ends 24a, 24b are threaded into the lever closures 26a, 26b, and the lever closure is repeatedly pivoted upwards and towards the nozzle by the action of force and gradually tightens the respective belt section 23a, 23b.
  • the belt sections 23a, 23b are not elastic.
  • the elasticity required for closure is provided by the elasticity of the not fully inflated arms 7a, 7b which, as long as they are not fully inflated, are designed to be significantly elastically variable in diameter.
  • FIG. 2c shows the state in which the drive unit 6 has been removed from the recess 20 of the inflatable fuselage component 4 .
  • the drive unit 6 can be exchanged or stored separately from the then slackened fuselage component 4 for transport.
  • Figure 1 shows the closure of the first embodiment in an inverted configuration.
  • the belt sections 23a, 23b are preferably permanently fastened to the drive unit 6, preferably glued, sewn, riveted, screwed or otherwise fastened, they are arranged on both sides in a horizontal plane at a distance from the nozzle, each with one of the ends 24a, 24b, each of which outside towards the inflatable arms 7a, 7b.
  • a corresponding belt section 27a, 27b is fastened to each of the inflatable arms 7a, 7b, each with one of the lever closures 26a, 26b permanently fastened to it.
  • 3c shows the surfboard 1 in a disassembled state according to the second embodiment.
  • FIG. 4a to 4c a third embodiment of the rear attachment means is shown.
  • no part of the fastening means is arranged on the drive unit 6 .
  • a strap is stretched along the rear face of the surfboard 1 .
  • the belt consists of two belt sections 23, 27, at one end of one belt section 23 is in turn the end 24 and at one end of the corresponding belt section 27 the lever lock 26 is formed.
  • the belt sections 23, 27 are fastened to the side or to the rear face 10 of the two arms 7a, 7b, for example by means of an adhesive connection or a sewn connection.
  • FIGS Figure 5a and 5b show a fourth embodiment which is a modification of the third embodiment in FIGS Figures 4a to 4b and which is not part of the present invention.
  • a belt 28 is formed in one piece. It is guided from one arm 7a, 7b to the other along the rear face 10 thereof. There, the two ends of the belt 23 are in turn firmly connected to the side or the rear face of the two arms 7a, 7b, ie sewn or glued or both or otherwise attached.
  • the surfboard 1 is set up by first spreading out the deflated hull component 4 and possibly incompletely filling it with air, then inserting the drive unit 6 into the recess 20 of the deflated or partially inflated hull component 4 and only then inserting the strap 28 along the rear end face 10 of the drive unit 6 is placed.
  • the belt 28 is not placed over the nozzle of the jet drive 8 .
  • the fuselage component 4 is then inflated with high pressure.
  • the length of the strap 28 is selected to be so short that it is tensioned when the fuselage component 4 is inflated and additional pressure can be generated laterally on the drive unit 6 .
  • the drive unit 6 is removed from the fuselage component 4.
  • the rear attachment means is designed as a kink 61a, 61b in the lateral, inflatable arms 7a, 7b.
  • Each of the lateral, inflatable arms 7a, 7b is hook-shaped or L-shaped and engages behind the drive unit 6 at least in sections at the rear by means of the kink 61a, 61b.
  • the nozzle remains free. No fastener extending completely along the entire rear face 10 is provided. However, it has been found that the kinks 61a, 61b of the side arms 7a, 7b, with the hooks pointing inwards towards the surfboard 4, are sufficient to prevent the drive unit 6 from slipping out the rear when inflated under high pressure .

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Textile Engineering (AREA)
  • Air Bags (AREA)
  • Slide Fasteners (AREA)
  • Devices For Conveying Motion By Means Of Endless Flexible Members (AREA)
  • Clamps And Clips (AREA)
  • Superstructure Of Vehicle (AREA)
  • Jib Cranes (AREA)

Claims (6)

  1. Planche de surf gonflable comprenant
    un composant de coque gonflable avec deux bras latéraux (7a, 7b) qui forment un logement, et
    une unité d'entraînement (6) qui forme un contour extérieur qui s'adapte par complémentarité de forme dans le logement, et
    au moins un moyen de fixation (23, 23a, 23b, 24a, 24b, 26a, 26b, 27, 27a, 27b, 28, 61a, 61b) à l'extrémité arrière de la planche de surf (1),
    l'au moins un moyen de fixation (23, 23a, 23b, 24a, 24b, 26a, 26b, 27, 27a, 27b, 28, 61a, 61b) étant configuré sous forme non élastique et étant configuré sous la forme d'au moins une sangle (23, 23a, 23b, 24a, 24b, 26a, 26b, 27, 27a, 27b, 28) qui est fixée aux deux bras latéraux (7a, 7b) et s'étend à l'arrière le long de l'unité d'entraînement (6), caractérisée en ce que l'au moins un moyen de fixation (23, 23a, 23b, 24a, 24b, 26a, 26b, 27, 27a, 27b, 28, 61a, 61b) présente en outre un mécanisme à levier (24a, 26a, 24b, 26b) avec une fermeture à levier, la sangle (23, 23a, 23b, 24a, 24b, 26a, 26b, 27, 27a, 27b, 28) pouvant être tendue au moyen du mécanisme à levier (24a, 26a, 24b, 26b) avec la fermeture à levier par des mouvements de va-et-vient.
  2. Planche de surf gonflable selon la revendication 1, caractérisée en ce que l'au moins un moyen de fixation comprend deux sections de sangle (23a, 23b, 27a, 27b) qui s'étendent chacune depuis l'un des deux bras (7a, 7b) vers l'unité d'entraînement (6).
  3. Planche de surf gonflable selon la revendication 1 ou 2, caractérisée en ce que l'au moins un moyen de fixation (23, 23a, 23b, 24a, 24b, 26a, 26b, 27, 27a, 27b, 28, 61a, 61b) est configuré sous la forme d'une prise arrière (61a, 61b) en forme de L en vue de dessus de l'unité d'entraînement (6).
  4. Planche de surf gonflable selon l'une quelconque des revendications 1 à 3, caractérisée en ce que deux moyens de fixation (23, 23a, 23b, 24a, 24b, 26a, 26b, 27, 27a, 27b) sont prévus et sont chacun configurés sous forme de sangle, qui s'étend respectivement depuis un côté des bras (7a, 7b) ou depuis une extrémité arrière des bras (7a, 7b) vers l'extrémité arrière de l'unité d'entraînement (6) et relient entre elles de manière amovible l'extrémité arrière des bras (7a, 7b) et l'extrémité arrière de l'unité d'entraînement (6).
  5. Planche de surf gonflable selon l'une quelconque des revendications 1 à 4, caractérisée en ce que le mécanisme à levier (24a, 26a, 24b, 26b) est configuré sous forme de levier à genouillère ou de dispositif à rochet.
  6. Planche de surf gonflable selon l'une quelconque des revendications 1 à 5, caractérisée en ce qu'une section de sangle (23, 23a, 24a, 26a, 27, 27a) est fixée au moyen d'un dispositif à rochet ou d'un levier à genouillère à un contre-élément d'une section de sangle correspondante (23b, 24b, 26b, 27b).
EP18833235.7A 2017-12-21 2018-12-21 Planche de surf gonflable pourvue d'une unité d'entrainement Active EP3728015B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102017130955.1A DE102017130955A1 (de) 2017-12-21 2017-12-21 Aufblasbares surfboard mit antriebseinheit
PCT/EP2018/086553 WO2019122321A1 (fr) 2017-12-21 2018-12-21 Planche de surf gonflable pourvue d'une unité d'entrainement

Publications (3)

Publication Number Publication Date
EP3728015A1 EP3728015A1 (fr) 2020-10-28
EP3728015C0 EP3728015C0 (fr) 2023-06-07
EP3728015B1 true EP3728015B1 (fr) 2023-06-07

Family

ID=65011987

Family Applications (1)

Application Number Title Priority Date Filing Date
EP18833235.7A Active EP3728015B1 (fr) 2017-12-21 2018-12-21 Planche de surf gonflable pourvue d'une unité d'entrainement

Country Status (8)

Country Link
US (1) US11673630B2 (fr)
EP (1) EP3728015B1 (fr)
CN (1) CN111511639A (fr)
AU (1) AU2018386565B2 (fr)
DE (1) DE102017130955A1 (fr)
IL (1) IL275552A (fr)
MX (1) MX2020006554A (fr)
WO (1) WO2019122321A1 (fr)

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DE202015009474U1 (de) * 2015-06-03 2017-10-26 Sophia Verwaltungs Gmbh Wassersportgerät
US10597118B2 (en) 2016-09-12 2020-03-24 Kai Concepts, LLC Watercraft device with hydrofoil and electric propeller system
US11897583B2 (en) 2020-04-22 2024-02-13 Kai Concepts, LLC Watercraft device with hydrofoil and electric propulsion system
US10946939B1 (en) 2020-04-22 2021-03-16 Kai Concepts, LLC Watercraft having a waterproof container and a waterproof electrical connector
AU2022287737A1 (en) * 2021-06-11 2024-01-18 Barracuda Kayaks Limited Motor assisted paddlecraft
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

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Also Published As

Publication number Publication date
WO2019122321A1 (fr) 2019-06-27
US11673630B2 (en) 2023-06-13
EP3728015C0 (fr) 2023-06-07
EP3728015A1 (fr) 2020-10-28
AU2018386565A1 (en) 2020-07-09
MX2020006554A (es) 2020-11-24
CN111511639A (zh) 2020-08-07
IL275552A (en) 2020-08-31
DE102017130955A1 (de) 2019-06-27
AU2018386565B2 (en) 2022-02-03
US20210147042A1 (en) 2021-05-20

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