EP3759017A1 - Schwimmbrett aus einem schwimmfähigen material und wassersportgerät umfassend ein motorwasserfahrzeug und ein solches schwimmbrett - Google Patents
Schwimmbrett aus einem schwimmfähigen material und wassersportgerät umfassend ein motorwasserfahrzeug und ein solches schwimmbrettInfo
- Publication number
- EP3759017A1 EP3759017A1 EP19708996.4A EP19708996A EP3759017A1 EP 3759017 A1 EP3759017 A1 EP 3759017A1 EP 19708996 A EP19708996 A EP 19708996A EP 3759017 A1 EP3759017 A1 EP 3759017A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- board
- swimming
- floating
- floating board
- watercraft
- 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.)
- Granted
Links
- 239000000463 material Substances 0.000 title claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 117
- 230000009182 swimming Effects 0.000 claims description 86
- 210000002414 leg Anatomy 0.000 claims description 20
- 210000000689 upper leg Anatomy 0.000 claims description 7
- 230000000284 resting effect Effects 0.000 claims description 6
- 239000004744 fabric Substances 0.000 description 9
- 239000004033 plastic Substances 0.000 description 7
- 229920003023 plastic Polymers 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000000926 separation method Methods 0.000 description 5
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 210000002784 stomach Anatomy 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 210000000245 forearm Anatomy 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229920001084 poly(chloroprene) Polymers 0.000 description 2
- 239000005871 repellent Substances 0.000 description 2
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- 210000001015 abdomen Anatomy 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000009189 diving Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 150000002148 esters Chemical class 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- -1 polyethylene Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 238000009958 sewing Methods 0.000 description 1
- 229920001909 styrene-acrylic polymer Polymers 0.000 description 1
- 239000004753 textile Substances 0.000 description 1
- 238000012559 user support system Methods 0.000 description 1
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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
- B63B32/10—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
- B63B32/20—Boards specially adapted for use in a prone position, e.g. wild-water sledges
- B63B32/22—Bodyboards for surfing; Accessories specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63C—LAUNCHING, HAULING-OUT, OR DRY-DOCKING OF VESSELS; LIFE-SAVING IN WATER; EQUIPMENT FOR DWELLING OR WORKING UNDER WATER; MEANS FOR SALVAGING OR SEARCHING FOR UNDERWATER OBJECTS
- B63C11/00—Equipment for dwelling or working underwater; Means for searching for underwater objects
- B63C11/46—Divers' sleds or like craft, i.e. craft on which man in diving-suit rides
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B35/00—Swimming framework with driving mechanisms operated by the swimmer or by a motor
- A63B35/08—Swimming framework with driving mechanisms operated by the swimmer or by a motor with propeller propulsion
- A63B35/12—Swimming framework with driving mechanisms operated by the swimmer or by a motor with propeller propulsion operated by a motor
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B69/00—Training appliances or apparatus for special sports
- A63B69/0093—Training appliances or apparatus for special sports for surfing, i.e. without a sail; for skate or snow boarding
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B21/00—Tying-up; Shifting, towing, or pushing equipment; Anchoring
- B63B21/56—Towing or pushing equipment
-
- 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
- B63B32/20—Boards specially adapted for use in a prone position, e.g. wild-water sledges
-
- 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
- B63B34/00—Vessels specially adapted for water sports or leisure; Body-supporting devices specially adapted for water sports or leisure
- B63B34/10—Power-driven personal watercraft, e.g. water scooters; Accessories therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63B—SHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
- B63B34/00—Vessels specially adapted for water sports or leisure; Body-supporting devices specially adapted for water sports or leisure
- B63B34/50—Body-supporting buoyant devices, e.g. bathing boats or water cycles
- B63B34/54—Body-supporting buoyant devices, e.g. bathing boats or water cycles specially adapted for being towed, e.g. banana boats, water sledges or towed buoys
-
- A—HUMAN NECESSITIES
- A63—SPORTS; GAMES; AMUSEMENTS
- A63B—APPARATUS FOR PHYSICAL TRAINING, GYMNASTICS, SWIMMING, CLIMBING, OR FENCING; BALL GAMES; TRAINING EQUIPMENT
- A63B69/00—Training appliances or apparatus for special sports
- A63B69/06—Training appliances or apparatus for special sports for rowing or sculling
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H11/00—Marine propulsion by water jets
- B63H11/02—Marine propulsion by water jets the propulsive medium being ambient water
- B63H11/04—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H21/00—Use of propulsion power plant or units on vessels
- B63H21/12—Use of propulsion power plant or units on vessels the vessels being motor-driven
- B63H21/17—Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor
Definitions
- swimming board made of a buoyant material and water sports equipment comprising a motor watercraft and such a swimming board
- the present invention relates to a swimming board made of a material floatable on water.
- the floating board includes a support area on which a user can at least partially rest.
- the floating board is relatively small and serves as a buoyancy aid, especially for children and non-swimmers.
- the user supports the hands and / or a part of the forearms on the support area of the swimming board and performs with the legs swimming movements.
- the swimming board is designed as a surfboard for windsurfing or surfing, or as a stand-up paddling (SUP) board.
- a motor watercraft is known, the two handles in the front region of the motor watercraft, where a user can hold on.
- the watercraft is preferably powered by a water jet propulsion system in which a flow of water is created by a flow channel on the underside of the watercraft which runs counter to the direction of travel of the watercraft.
- water is sucked in through an inflow opening at the underside of the fuselage or in the region of the bow of the watercraft, accelerated by means of a water screw arranged in the flow channel and ejected via an outlet opening in the region of the stern of the watercraft.
- the water screw is preferably driven by a powered by batteries electric motor.
- the user lies with his arms and possibly with a part of his abdomen on a support area of the motor watercraft and steers this example by shifting weight.
- the user can control the speed of the motor watercraft by, for example, the speed of the water screw or an angle of attack of a flow channel located flap is varied.
- the known motor watercraft can be used floating over water but also diving under water.
- This object is achieved by the floating board with the features of claim 1 and by a water sports device having the features of claim 16.
- the dependent claims have advantageous embodiments and further developments of the present invention the subject.
- the flow resistance of the user by arranging at least a part of the user's body, which has hitherto been in the water, on the support area of the floating board, which is hinged to the watercraft.
- the watercraft and the swimming board together form the water sports device according to the invention.
- the articulated connection of the swimming board to the vessel keeps the maneuverability and agility of the water sports equipment in full.
- a large part of the forces acting on the user during operation of the watercraft are transferred to the floating board and transmitted to the watercraft via the articulated attachment section of the floating board.
- the attachment portion conceivable with the floating board is hinged to the vessel.
- the floating board it would be conceivable for the floating board to have a front rest section on which the attachment section is arranged and which is designed to rest on an upper side of the watercraft when the float board is attached to the vessel.
- a corresponding fastening receptacle is formed, in which the attachment portion of the swimming boards engages.
- the front end of the swimming board is arranged above the watercraft and only the rear end, possibly also at least part of a central region of the swimming board, are in the water.
- the attachment receptacle may be formed, for example, as a recess into which a fastening portion designed as a projection or pin is inserted from above.
- a backup may be provided to secure the mounting portion in the mounting receptacle and - at least during normal operation of the water sports equipment - to avoid accidental separation of swimming board and watercraft.
- the fastening section is designed for releasable attachment of the floating board to the watercraft.
- This makes a simple and quick separation between the floating board and watercraft possible to transport the water sports equipment in parts and to facilitate transport.
- the articulated connection of the swimming board to the vessel is preferably realized by means of a snap or snap closure, which can be closed and opened easily in the water with cold, damp and / or numb fingers.
- the support area of the swimming board is preferably designed such that the user rests on the floating board at least with his chest and possibly also his stomach.
- the floating board ensures that especially that part of the user's body that provides the greatest flow resistance in the water, is arranged on the floating board.
- the support area can be designed such that the user rests with his legs on the swimming board. In this way it is ensured that the entire body of the user rests either on the top of the watercraft or on the support area of the swimming board, so that the flow resistance can be minimized. In this embodiment, particularly high end and cornering speeds of the water sports device can be achieved.
- the support area at a rear end portion of the swimming board in two to Water sloping down lateral thigh supports on which the user rests with his upper or lower legs and between which a clamping area is formed which can be arranged between the legs of the user and sandwiched therebetween.
- This allows the user to hold on to the swimming board with his thighs.
- the feet and - depending on the specific design of the swimming board - under certain circumstances the lower legs of the user in the water and can assist in the control of the water sports equipment.
- this embodiment allows a particularly sporty, agile and agile operation of the water sports equipment.
- the support area is bounded laterally by retaining cheeks, which makes it difficult for the user to slide down during use of the swimming board.
- the retaining cheeks preferably have approximately a cylindrical shape or a cylinder-like shape with a longitudinal extent which runs approximately in the direction of travel of the water sports device.
- the retaining cheeks project upwards beyond the main extension plane of the support area and support the user laterally during operation of the sports equipment.
- the retaining cheeks are preferably formed by inflatable chambers, which are formed separately from the remaining floating board. Inflatable chambers are compliant, so that the user is particularly gentle and comfortable.
- the fastening section has a joint section which has two axes of rotation extending parallel to one another, wherein a first axis of rotation is articulated on the floating board and the other axis of rotation is associated with the vessel.
- the axes of rotation have attached to the vessel floating board a substantially horizontal extent.
- the attachment portion is designed to articulate the floating board about two mutually perpendicular axes of articulation on the watercraft. It is conceivable that one of the axes of rotation of the joint portion has a first hinge axis of the attachment portion and a further axis which is not one of the axes of rotation of the joint portion and which has a substantially vertical extent in the floating board attached to the vessel which forms the other joint axis of the attachment portion.
- the front end region of the floating board is angled upward by a few angular degrees, preferably by 5 °, relative to the remaining part of the floating board.
- the engine watercraft which is articulated to the front end of the swimming board, accelerates, it rises slightly out of the water with its bow or sinks slightly into the water with its tail.
- This results in an inclination of the vessel by a few angular degrees, in particular by about 3 ° to 10 °.
- the angled front end portion of the float board is adapted to the inclination of the watercraft during operation and thus prevents the sloped vessel from transmitting large bending moments to the front end portion of the float board.
- the floating board has on its underside resting on the water demolition edges which protrude over a surface extension of the bottom down and project into the water and each directed an extension direction with a transverse to a longitudinal extent of the swimming board Have component.
- the demolition edges is a suction effect, which by the under the swimming board created by flowing stream of water and the floating board can pull down, reduced. This is done by sucking air laterally via the trailing edge and passing it under the floating board into the area of the water jet. There, the air leads to a stall, which reduces the suction effect.
- Several demolition edges can be arranged one behind the other in the longitudinal direction and at a distance from each other. About 5 cm in front of the rear end of the swimming board, the last demolition edges are arranged. Two oblique tear-off edges each can be assembled into a V-shape, with a tip of the V facing forward.
- the floating board is at least partially made of an inflatable material.
- a core of the swimming board can be made of the inflatable material.
- the outer shape of the swimming board can then be formed by free-form cheeks, which are fastened from the outside to the core of inflatable material.
- the free-form cheeks are preferably formed from a plastic and attached, for example, by gluing or clips to the core of inflatable material.
- the free-form cheeks thus form at least a part of the outer skin of the swimming board.
- Air can be pumped into the interior of the inflatable material or the air can be removed from the interior via a valve arranged in the outer skin of the floating board.
- the valve is preferably arranged on the upper side of the swimming board, in particular at the rear end area.
- Dropstitch material allows the realization of inflatable swimming boards, which are particularly dimensionally stable when inflated.
- the principle of the drop stitch construction is based on linking the top and bottom inside of the floating board with vertical connecting fibers and keeping them in the desired shape even under high internal pressure.
- the result is a fabric that is very tear-resistant and dimensionally stable due to the large number of knots and withstands particularly high loads, but still compactly collapsible when not inflated.
- an internal pressure of about 100 kPa (1 bar) to 175 kPa (1.75 bar) can be achieved. It can Different layers of dropstitch fabric with PVC of different qualities are glued and vulcanized.
- the floating board has a flat bottom resting on the water or on its underside two lateral runners, which extend at least over part of a longitudinal extent of the swimming board.
- the embodiment of the floating board proposed according to this embodiment also has the advantage that the water jet accelerated in the flow channel can flow unhindered at the stern of the watercraft and between the two Skids is guided along the underside of the swimming board.
- the accelerated water jet thus does not come into contact with the floating board attached to the vessel after it has flowed out of the flow channel.
- a particularly efficient drive of the watercraft or the entire sports equipment is possible.
- skids are formed on a rear end region of the underside of the floating board. With the front end of the swimming board is then on the watercraft and is hinged to this over the mounting portion. Since the runners do not extend over the entire length of the swimming board, thereby the flow resistance can be further reduced.
- the skids on the underside of the swimming board can be designed in different ways. It has proved to be particularly advantageous if the floating board has a U-shaped cross section in the area of the runners, wherein distal ends of the two legs of the U-shaped cross section project into the water and form part of the runners. According to this embodiment, the skids are thus formed as an integral part integral with the floating board.
- the runners may be part of a core of inflatable material or may be formed by free-form cheeks attached to the core.
- a handle is arranged laterally.
- a handle is arranged in the front end region on opposite sides.
- this is preferably made of neoprene.
- the grips are preferably arranged on the sides of the swimming board such that they are arranged outside the water, ie above the water surface, when the swimming board or the water sports device is used as intended.
- the support area at the top of the swimming board preferably has a surface which, due to its shape and / or material nature, prevents slippage of the user and / or accumulation of water during use of the swimming board or water sports equipment. It is particularly preferred if the support region has longitudinal ribs with a contact surface which is convexly curved in cross section. The longitudinal ribs extend in the longitudinal direction at least over a part of the upper side of the floating board parallel to each other. At the rear end portion of the floating board, a tow handle and / or a drawbar can be arranged, can be pulled over the other water sports with or without swimming device (for example, another swimming board, an air mattress, a boat) behind the water sports device according to the invention.
- swimming device for example, another swimming board, an air mattress, a boat
- the user lies with a part of his body (eg his chest, his stomach and his thighs) on the support area of the swimming board. With another part of his body (eg his Forearms), the user rests on the top of the vessel and holds his hands on the handles of the vessel.
- the use of the floating board significantly reduces the flow resistance of the user retreating behind the vessel, but without limiting the agility, dynamics and agility of the water sports equipment. On the contrary, by using the floating board much higher end and cornering speeds can be achieved.
- the use of the water sports device thanks to the swimming board for the user even when driving over a long period of time and at high speeds particularly easy and fatigue-free.
- FIGS. 1-10 show various embodiments, the individual features can be combined in any way with each other, even if not explicitly shown in the figures and not explicitly mentioned in the description. Show it:
- Figure 1 is an inventive swimming board according to various aspects
- Figure 1 a is an enlarged view of a mounting portion of
- FIG. 2 shows the floating board from FIG. 1 in a sectional view and with a hinged attachment to a motor watercraft;
- Figure 3 shows a preferred embodiment of an inventive
- Figure 4 is a sectional view of the floating board of Figure 3 in the direction of travel from behind;
- Figure 5 shows three different embodiments of a swimming board according to the invention in a side view;
- FIG. 6 shows a water sports device according to the invention in a plan view according to a first preferred embodiment
- FIG. 7 shows a water sports device according to the invention in a plan view according to a second preferred embodiment
- FIG. 8 shows a water sports device according to the invention in a plan view according to a third preferred embodiment
- FIG. 9 shows the water sports device from FIG. 6 in a plan view with a user lying thereon;
- FIG. 10 shows the water sports device from FIG. 8 in a perspective view
- FIG. 11 shows the water sports device from FIG. 6 in a perspective view
- FIGs 12 and 13 the swimming boards of the water sports equipment of Figures 10 and 11 in a perspective view
- FIG. 14 shows a water sports device according to the invention in a plan view according to a further preferred embodiment
- Figure 14a shows various embodiments of handles of the floating board
- Figure 15 is an inventive swimming board of the water sports equipment
- FIG. 16 shows the floating board from FIG. 15 in a cross section
- FIG. 17 shows a water sports device according to the invention in a plan view according to a further preferred embodiment
- Figure 18 is an inventive swimming board of the water sports equipment
- FIG. 17 in a side view
- FIG. 19 shows the water sports device from FIG. 17 in a side view
- Figure 20 shows the swimming board of Figure 18 in a view from below.
- the swimming board is designated in its entirety by the reference numeral 2. It consists of a water-floatable material and comprises a front end portion 4 and a rear end portion 6.
- a support area 8 On a top of the floating board 2 is a support area 8, on which a user rests during a normal operation of the floating board 2 at least with a part of his body (compare Figure 9).
- the support region 8 comprises a plurality of, in particular three, longitudinal ribs 10 with a contact surface which is convexly curved in cross-section (cf. FIG. 4).
- the longitudinal ribs 10 extend in the longitudinal direction at least over a part of the top of the floating board 2 parallel to each other.
- the support area 8 of the floating board 2 may be formed without the longitudinal ribs 10.
- the floating board 2 may for example consist of a foamed plastic (eg expanded or extruded polystyrene) coated with an outer skin of a water-repellent, resistant plastic (eg polyethylene, acrylonitrile-styrene-acrylic ester, epoxy resin) or a laminate (eg a fiber - Plastic composite such as GRP) is coated.
- a water-repellent, resistant plastic eg polyethylene, acrylonitrile-styrene-acrylic ester, epoxy resin
- a laminate eg a fiber - Plastic composite such as GRP
- this includes swimming board 2 an inflatable material, eg a drop stitch fabric material.
- the floating board 2 has a core 12 made of the drop stitch material (see FIGS. 3 and 4).
- the outer shape of the floating board 2 is formed by free-form cheeks 14, which are fastened to the core 12 from the outside.
- the free-form cheeks 14 are preferably formed of a water-repellent, durable plastic and attached to the core 12 or to each other, for example by gluing or clips. Of course, it would also be conceivable to manufacture the entire floating board 2 from the drop stitch fabric material without using additional free-form cheeks 14. By using differently shaped freeform cheeks 14, however, it is possible, starting from a predetermined uniform basic shape of the core 12 with little effort and low cost to realize different outer shapes and configurations of the floating board 2.
- the core 12 of drop stitch material can be inflated via a provided in the outer skin of the floating board 2 valve 16.
- the valve 16 is arranged in a rear end region 6 on the upper side of the floating board 2.
- a drawbar eye 18 is provided, can be pulled over the other water sports with or without swimming device (for example, another swimming board, an air mattress, a boat) behind the water sports device according to the invention (see Figure 2).
- handles 20 are arranged to facilitate the transport and attachment of the floating board 2 to a motor watercraft 24 (see FIG. 2).
- Figure 9a three different embodiments of the handles 20a, 20b, 20c are shown.
- these are preferably made of neoprene. They are hinged on eyelets made of metal or plastic on the floating board 2.
- the floating board 2 has a fastening section 22 for the articulated attachment of the floating board 2 to a watercraft 24 (see FIG. 2).
- the floating board 2 and the watercraft 24 together form the water sports device according to the invention.
- the Attachment portion 22 is shown in detail in Figure 1 a.
- the attachment portion 22 is designed, in particular, for detachable attachment of the float board 2 to the watercraft 24, so that the floatation board 2 can be quickly and easily separated from the watercraft 24 or fastened to it for ease of transport and storage.
- a suitable securing element may be provided.
- the attachment portion 22 includes a hinge portion 26 having two mutually parallel axes of rotation 28, 30, wherein a first axis of rotation 28 hinged to the floating board 2 and the other axis of rotation 30 is associated with the watercraft 24.
- the hinge portion 26 is hinged to a rigid mounting bracket 32 which is fixed to the front end portion 4 of the floating board 2.
- the hinge portion 26 may be made of a flexible material (e.g., a textile fabric) or rigid material (e.g., metal or plastic).
- the axes of rotation 28, 30 have attached to the watercraft 24 floating board 2 has a substantially horizontal extent.
- the attachment portion 22 is adapted to pivotally attach the float board 2 to the craft 24 by at least two mutually perpendicular axes of articulation.
- a fastening element 34 is provided, which can be fastened rotatably to the watercraft 24 about a substantially vertical first joint axis 36.
- Another hinge axis is formed by one of the axes of rotation 28, 30.
- the axes of rotation 28, 30 are perpendicular to the first hinge axis 36.
- a front support portion of the floating board 2 is formed by the fixing member 34.
- the rest section 34 is part of the attachment portion 22 and is adapted to rest on the top of the watercraft 24 when the float board 2 is attached to the vessel 24.
- the fastener 34 includes a downwardly projecting protrusion 38 having a circular cross section (see Figures 2, 3, and 5) or a pin which fits into a corresponding fastener receptacle 50 (see Figure 10) located on top of a vehicle body 40 of the craft 24 is formed, intervene and may be rotatably held about the hinge axis 36.
- the attachment receptacle 50 may be formed, for example, as a recess into which the projection 38 of the attachment portion 34 is inserted from above.
- a fuse may be provided to secure the mounting portion 34 in the mounting receptacle 50 and to prevent inadvertent separation of the float board 2 and the watercraft 24.
- the attachment receptacle 50 on the upper side of the vehicle body 40 may also be designed to receive and hold the fastening element of a holding system (eg tether) for securing the user when the swimming board 2 is not fastened to the watercraft 24.
- a holding system is known, for example, from DE 10 2007 032 392 A1.
- the support area 8 of the floating board 2 is designed such that the user 42 rests on the floating board 2 with proper attachment of the floating board 2 to the watercraft 24 and under normal operation of the water sports equipment 2, 24 at least with his chest and possibly his stomach. This is shown, for example, in FIG. 9.
- the legs and feet of the user 42 can also rest on the support area 8 (position 44 of the legs of the user 42 in FIG. 9).
- the user 42 spreads his legs, so that only the thighs rest on the support area 8 and the feet and possibly also at least part of the lower legs of the user 42 protrude into the water (position 46 of the legs of the user 42 in FIG 9).
- a corresponding swimming board 2 allowing such use is shown, for example, in FIGS. 6, 7, 11 and 13.
- a tow handle 48 and a drawbar eye 18 are arranged in the rear end portion 6 of the floating board 2, on the other water sports with or without swimming equipment (for example, another swimming board, an air mattress, a boat) behind the water sports device 2, 24 according to the invention can be pulled.
- the tow handle 48 with drawbar eye 18 is shown as an item below in Figure 9a.
- the attachment section 34 is not shown in FIGS. 10 to 13. This can be seen in Figure 10 on the top of the vehicle body 40 of the watercraft 24th recognize the attachment receptacle 50 for receiving the attachment portion 34.
- the support area 8 goes to the rear end portion 6 of the floating board 2 in two sloping to the water side leg rest 52 on which the user rests with his upper and / or lower legs and between which a clamping portion 54 is formed, which is arranged between the upper and lower legs of the user.
- the user can clamp the clamping region 54 between his thighs and thereby obtains additional stability.
- the feet and possibly also a part of the legs, for example the lower legs project into the water and can be used to support the water sports device 2, 24.
- the motor watercraft 24 is known per se, for example, from DE 195 11 850 A1 or DE 100 09 278 A1. It has two handles 56 in the front region of the watercraft 24, on which the user 42 can hold (see Figure 9).
- the water vehicle 24 is preferably driven by a water jet propulsion system, by which a water flow is generated by a flow channel on the underside of the watercraft 24, which runs counter to the direction of travel of the watercraft 24. In this case, water is sucked in in particular via an inflow opening on the underside of the hull of the watercraft 24, accelerated by means of a water screw arranged in the flow channel and ejected via an outlet opening 58 (compare FIGS. 2 and 4) in the region of the stain of the watercraft 24.
- the water screw is preferably driven by a powered by batteries electric motor.
- the user 42 may steer the watercraft 24 by shifting his weight.
- controls 60 in the area of the grab handles 56 the user 42 can control the speed of the watercraft 24 by, for example, varying the speed of the water screw or an angle of attack of a flap located in the flow channel.
- the Watercraft 24 mainly used floating over water.
- a waterline is designated in FIGS. 2, 4 and 5 by the reference numeral 62.
- FIG. 2 for example, three different sizes or volumes of the floating board 2 according to the invention are shown in outline. Depending on the weight of the user 42 and the desired buoyancy, a swimming board 2 with a larger or smaller volume can be selected.
- FIG. 3 shows another embodiment of the floating board 2 according to the invention.
- the core 12 made of inflatable material, for example a drop stitch fabric material, can be seen, to which free form cheeks 14 are attached from outside at least in regions.
- a cross section through the floating board 2 from FIG. 3 is shown in FIG. 4 in a spot view.
- the floating board 2 has two laterally disposed runners 64 on its underside resting on the water. The runners 64 extend at least over a part of a longitudinal extension of the floating board 2.
- the skids 64 are formed on the rear end portion 6 of the underside of the floating board 2.
- the floating board 2 has a U-shaped cross section in the region of the runners 64 (see FIG. 4), wherein distal ends of the two legs of the U-shaped cross section protrude into the water or rest on the water surface 62 and form part of the runners 64 , It is preferred that the runners 64 are formed by correspondingly shaped free-form cheeks 14.
- FIG. 14 shows a water sports device 2, 24 according to the invention in a plan view, which comprises a motor vessel 24 and a floating board 2 according to the invention in a further embodiment.
- the floating board 2 differs from the previously described floating board 2 by various features.
- the support area 8 for example, at least partially bounded laterally by Flaltewangen 68, which laterally support a user 42 and thus complicate an unintentional Fierunter sliding the user 42 of the support area 8, in the ideal case even prevent.
- the flat cheeks 68 are preferably formed as inflatable air chambers separately from the rest of the floating board 2.
- Each of the air chambers has, for example, a volume of 10-15 liters, in particular 11-12 liters.
- the Flaltewangen 68 inflated and air from the interior of the Flaltewangen 68 can be drained.
- the float board 2 preferably comprises an inflatable material, eg a drop stitch fabric material.
- inflatable Flalte cheeks 68 are attached, for example by sewing and / or vulcanization. In this way it is possible to discharge air from the entire floating board 2 including the Flaltewangen 68 and fold the floating board 2 in very compact dimensions.
- the lateral Flaltewangen 68 limit the support area 8 to the side and together with this form a recess for safe recording of the user 42.
- the floating board 2 handles 20 one of which arranged on the support area 8 in the region of a longitudinal axis of the floating board 2 and two of which two laterally inwardly directed conversions of Flaltewangen 68 are.
- FIG. 14a three different embodiments of the handles 20 are shown by way of example.
- FIG. 17-20 shows another embodiment of the present invention.
- Other handles 20 on the retaining cheeks 68 are not provided.
- FIG. 18 shows a side view of the swimming board 2 of the water sport device 2, 24 from FIG. 17.
- FIG. 19 shows the water sport device 2, 24 in a side view, wherein the region of the fastening section 22 with the fastening element 34 is shown in section. It can be clearly seen how the angled front end portion 4 of the floating board 2 is adapted to the angle of attack 72 of the watercraft 24.
- the swimming board 2 is shown in a view from below.
- a contact surface of the underside of the floating board 2 with the water surface 72 is designated by reference numeral 74.
- An outer contour of the inflatable dropstitch fabric material is designated by reference numeral 76.
- the underside of the floating board 2 has a - except for possibly present small bulges in the longitudinal and / or transverse axis - substantially planar surface extension.
- At the bottom of the floating board 2 are several Demolition edges 78 arranged.
- the demolition edges 78 protrude over a surface extension of the bottom down and protrude into the water.
- the demolition edges 78 each have an extension direction with a transversely directed to a longitudinal extent of the floating board 2 and thus also to a direction of travel of the water sports device 2, 24 component.
- a suction effect which is caused by the water jet flowing under the floating board 2 and the floating board 2 can pull down, is reduced. This is done by sucking air laterally via the separation edges 78 and passing it under the floating board 2 into the area of the water jet. There, the air leads to a stall, which reduces the suction effect.
- two inclined tear-off edges 78 may be assembled to a V-shape, wherein a tip of the V is directed forward and is located approximately on a longitudinal center axis of the floating board 2.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Textile Engineering (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Physical Education & Sports Medicine (AREA)
- Toys (AREA)
- Professional, Industrial, Or Sporting Protective Garments (AREA)
- Motorcycle And Bicycle Frame (AREA)
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- Hydraulic Turbines (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018104431.3A DE102018104431A1 (de) | 2018-02-27 | 2018-02-27 | Schwimmbrett aus einem schwimmfähigen Material und Wassersportgerät umfassend ein Motorwasserfahrzeug und ein solches Schwimmbrett |
PCT/EP2019/054875 WO2019166496A1 (de) | 2018-02-27 | 2019-02-27 | Schwimmbrett aus einem schwimmfähigen material und wassersportgerät umfassend ein motorwasserfahrzeug und ein solches schwimmbrett |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3759017A1 true EP3759017A1 (de) | 2021-01-06 |
EP3759017B1 EP3759017B1 (de) | 2024-07-03 |
Family
ID=65685322
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19708996.4A Active EP3759017B1 (de) | 2018-02-27 | 2019-02-27 | Schwimmbrett aus einem schwimmfähigen material und wassersportgerät umfassend ein motorwasserfahrzeug und ein solches schwimmbrett |
Country Status (9)
Country | Link |
---|---|
US (1) | US11447210B2 (de) |
EP (1) | EP3759017B1 (de) |
JP (1) | JP7295125B2 (de) |
KR (1) | KR20200124276A (de) |
CN (1) | CN111770878B (de) |
AU (1) | AU2019228337B2 (de) |
DE (1) | DE102018104431A1 (de) |
MX (1) | MX2020008844A (de) |
WO (1) | WO2019166496A1 (de) |
Cited By (1)
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EP4306401A1 (de) * | 2022-07-08 | 2024-01-17 | Shanghai Yujet Co., Ltd. | Verfahren zur umwandlung eines jet-boards in ein persönliches wasserfahrzeug (pwc) |
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WO2020047445A1 (en) * | 2018-09-01 | 2020-03-05 | Carlisle Matthew Chase | Base for performing physical therapy and method of using the same |
EP3718608B1 (de) * | 2019-04-01 | 2021-11-17 | Volvo Car Corporation | Aufblasbare struktur |
DE102019127224A1 (de) | 2019-10-10 | 2021-04-15 | Cayago Tec Gmbh | Wasserfahrzeug |
DE102022132643A1 (de) * | 2022-12-08 | 2024-06-13 | Jetworx Gmbh | Wassersportgerät umfassend ein Wasserfahrzeug und Verwendung eines Wasserfahrzeugs |
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2018
- 2018-02-27 DE DE102018104431.3A patent/DE102018104431A1/de active Pending
-
2019
- 2019-02-27 MX MX2020008844A patent/MX2020008844A/es unknown
- 2019-02-27 WO PCT/EP2019/054875 patent/WO2019166496A1/de unknown
- 2019-02-27 AU AU2019228337A patent/AU2019228337B2/en active Active
- 2019-02-27 KR KR1020207027751A patent/KR20200124276A/ko not_active Application Discontinuation
- 2019-02-27 US US16/970,347 patent/US11447210B2/en active Active
- 2019-02-27 CN CN201980015614.8A patent/CN111770878B/zh active Active
- 2019-02-27 EP EP19708996.4A patent/EP3759017B1/de active Active
- 2019-02-27 JP JP2020544901A patent/JP7295125B2/ja active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP4306401A1 (de) * | 2022-07-08 | 2024-01-17 | Shanghai Yujet Co., Ltd. | Verfahren zur umwandlung eines jet-boards in ein persönliches wasserfahrzeug (pwc) |
Also Published As
Publication number | Publication date |
---|---|
CN111770878A (zh) | 2020-10-13 |
AU2019228337A1 (en) | 2020-09-10 |
JP2021514893A (ja) | 2021-06-17 |
AU2019228337B2 (en) | 2024-05-16 |
BR112020015577A2 (pt) | 2021-02-02 |
US20210001960A1 (en) | 2021-01-07 |
DE102018104431A1 (de) | 2019-08-29 |
CN111770878B (zh) | 2023-05-09 |
EP3759017B1 (de) | 2024-07-03 |
US11447210B2 (en) | 2022-09-20 |
MX2020008844A (es) | 2020-10-01 |
KR20200124276A (ko) | 2020-11-02 |
JP7295125B2 (ja) | 2023-06-20 |
WO2019166496A1 (de) | 2019-09-06 |
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