EP4261117A1 - Variable width watercraft - Google Patents

Abstract

The invention relates to a watercraft having a cabin with 4 corner pillars and a roof, a boat floor and at least one floating body, the cabin having a bay window on the starboard and port side and optionally a platform at the bow and/or stern and both bay windows and possibly the Platforms at the bow and/or stern can be moved perpendicular to the longitudinal axis of the boat into a first and a second position.

Description

The invention relates to a watercraft having a cabin with 4 corner pillars and a roof, a boat floor and at least one floating body, the cabin having a bay window on the starboard and port side and optionally a platform at the bow and / or stern and both bay windows and possibly the Platforms at the bow and/or stern can be moved perpendicular to the longitudinal axis of the boat into a first and a second position.

Conventional watercraft cannot navigate all waterways due to their static width of usually 3.50 to 5.00 meters. There are always delays, especially in front of lock systems, because there is only space for a single vessel (usually around 3.50 to 5.00 meters wide) at one height in the fairway of such a system. You can do this e.g. B. can be observed very well on rivers in France or Italy. With a system fairway of 5.00 meters, a watercraft can barely fit into the lock. A wider vessel has to be laboriously transported overland for a short distance bypassing the lock.

In addition, watercraft with a width of more than 3.00 m require expensive heavy transport, which requires a permit, if they are to be moved, as the permissible width for conventional transport on the road is exceeded. These watercraft also need to be slipped in order to deploy and load them. Here, straps are passed under the boat. So that the belts do not crush the watercraft, a crossbar must be placed above the watercraft to keep the belts at a distance. This procedure is time-consuming and not every port provides the necessary facilities for this.

However, particularly in the area of houseboats and workboats, the largest possible cabin area is desirable. In the area of houseboats, a user can be offered correspondingly greater comfort, the larger the usable one Cabin area is. In the area of work boats, more work space can be provided on a watercraft.

From the prior art is from the DE19744291 C2 a catamaran is known that has a variable-width hull. This catamaran has a width of 7.98 m and can be narrowed to 4.93 m. The aim here is to enable entry into ports and to be able to use narrower berths in ports. However, due to its width of 4.93 m, the catamaran requires heavy-duty transport when moving or has to be dismantled. In addition, only the catamaran's floating bodies are moved outwards. The cabin and the living space within it remain unchanged.

Furthermore, they are DE3228579C2 and DE3142382C2 known. Both also reveal ocean-going catamarans. In the DE3228579C2 As the width of the boat increases, the living space also changes and the aim is for a width of 3 m to enable easier transport. However, the sides are completely immersed in the middle body, so that the cabin and thus the living space can no longer be used in the narrowed boat condition. The only advantage is the better transport option.

In the DE3142382C2 A catamaran is disclosed whose floating bodies can be moved. The cabin remains unchanged. The living space is therefore always the same and cannot be enlarged.

Based on the prior art, the object of the invention is to provide a watercraft which provides a generous cabin area and at the same time can be moored to a berth in the port in a space-saving manner, can pass through narrow locks and with conventional transport under a width of 3.00 m can be transported on the road and can be craned without slipping.

The present invention solves this problem by providing a watercraft according to claim 1.

Detailed description

The present invention relates to a watercraft having a cabin with 4 corner pillars and a roof, a boat floor and at least one floating body. The buoyancy of the watercraft is generated by the at least one floating body. The bottom of the boat is on at least one floating body attached and on this the cabin. The cabin has four corner pillars and a roof. Depending on the type of watercraft, the cabin can serve different functions.

In one embodiment of the present invention, the watercraft is a houseboat or a workboat. In a particularly preferred embodiment, the watercraft is a houseboat. In a houseboat, the cabin serves as a living room, bathroom, bedroom, kitchen and dining area. If the watercraft is a work boat, the cabin serves as a work space, but in this embodiment too, a kitchen, a bathroom or a toilet, a kitchen and possibly even rest areas for the workers can be accommodated in the cabin. In addition, in both cases the cabin may include a steering position for the watercraft.

In one embodiment of the present invention, the roof of the cabin is accessible and can be used as a terrace. The roof can also have another steering position that can be used when the weather is nice.

The watercraft according to the invention is preferably constructed in such a way that the CE classes for boat building C or D are met. Boat building class C includes boats that are suitable for coastal waters up to wind force 6 on the Beaufort scale and waves up to 2 m high. Boatbuilding class D includes boats that are suitable for protected waters and inland waters up to wind force 4 on the Beaufort scale and waves up to 0.5 m high.

The watercraft is preferably designed as a monohull, catamaran, trimaran or a general multihull. While monohulls have one float, catamarans have two floats and trimarans have three floats. Multihull boats can therefore have a larger number of floating bodies.

In a preferred embodiment, the four corner columns of the cabin and the roof of the cabin are designed to be torsion-resistant. The roof of the cabin preferably has at least 4 lifting eyes. This design of the watercraft makes it possible to lift it using a crane and lower it into the water. The laborious insertion of the watercraft by slipping can advantageously be eliminated.

The cabin and the bay windows of the watercraft according to the invention preferably have a material included in the group consisting of aluminum, steel, stainless steel, wood and fiber composite materials, or a combination of these.

According to the invention, the cabin has a bay window on the starboard side and a bay window on the port side, both bay windows being movable into a first and a second position perpendicular to the longitudinal axis of the boat. The boat's longitudinal axis is the axis of the boat that runs in the middle of the watercraft from the stern towards the bow.

According to the invention, the two bay windows can be moved into a first and a second position. The first position is the position in which the bay windows are completely moved in the direction of the longitudinal axis of the boat. The watercraft has the smallest width in this position. The width of the watercraft is understood to mean its extent from starboard to port. In the second position, both bay windows are maximally extended, i.e. they are maximally moved away from the longitudinal axis of the boat. In this position the watercraft has the greatest width it can occupy. In position two the boat can generally take up to twice the width in the first position. In one embodiment of the present invention, the width of the watercraft in the first position is 1.80 to 6.00 m, preferably 3.00 m, and in the second position is 3.60 m to 12.00 m, preferably 4.40 m to 6.00 m. In this embodiment, each of the bay windows is moved by 500 mm to 1000 mm, preferably 700 mm, in order to move from the first position to the second position and vice versa. Furthermore, when the bay windows are extended, a secondary bay window can be extended, according to the so-called bay window-in-bay principle. This means that the boat can be even wider.

The bay windows are made of materials, preferably stainless steel. In a particularly preferred embodiment, the bay windows have austenitic-ferritic stainless steel (duplex stainless steel). The advantages of the material in the sense of the invention are its seawater and high basic resistance to corrosion, good weldability, relatively high notched impact strength and good formability.

In a preferred embodiment, both bay windows have the same dimensions, that is, the same dimensions. This has the advantage of ensuring an even distribution of weight over the entire hull and thus a stable position of the boat in the water.

In one embodiment, the bay windows are mounted on the boat floor and move outwards. The float below the bottom of the boat remains unchanged and the bay windows extend out to port and starboard. In one embodiment of the present invention, the watercraft in this embodiment is designed as a monohull boat. In other embodiments, multihull boats can also be equipped with extendable bay windows based on this principle.

In principle, the bay window is to be understood as an insertion into the cabin. The bay window has an outer wall, a floor, a ceiling and two side walls. The bay window is open towards the inside of the cabin. The bay window area can serve as an additional living or working space. Advantageously, the space in the cabin can be used both in the first position of the bay windows and in the second position of the bay windows.

If the watercraft is used as a houseboat, the areas in the bay window can advantageously be furnished with furniture. These can then be accessed and used even when the bay windows are retracted. Moving the bay windows to the second position creates more space in the houseboat to move around. This significantly increases the comfort of a user.

In a further embodiment, the watercraft has at least three floating bodies. The floats are attached separately to the bottom of the boat. Each bay window is connected to the boat floor and the boat floor in turn is connected to at least one floating body. In this embodiment, by moving the bay window, the bottom of the boat and the at least one floating body underneath are also moved. According to the invention, the boat floor of the watercraft is therefore constructed in several parts, so that part of it can be moved with the bay window. According to the invention, both bay windows are constructed the same. In one embodiment, each bay is therefore connected to at least one floating body across the boat floor and the at least one floating body, which is connected to a bay, can be moved into the first and second positions together with the bay.

In a particularly preferred embodiment, exactly one floating body is moved with each bay window.

Boats usually have platforms at the bow and at the stern. In a preferred embodiment, platforms located at the bow and stern of the boat are moved together with the bay windows. On a houseboat, for example, these serve as Outdoor seating, with a work platform as an additional work surface. The platforms mentioned are preferably designed in two or more parts, so that the platforms can be moved together with the bay windows.

The bay windows (and, if applicable, the platforms) can be moved manually or automatically. In a preferred embodiment, the bay window process is automated. The watercraft has a suitable control system for this purpose. The following description about the process of the bay windows also applies to the process of the bay windows together with at least one floating body.

According to the invention, each bay window can be moved using a push system. In one embodiment of the present invention, the thrust system has a drive selected from the group containing oil hydraulic cylinders, water hydraulic cylinders, bio-oil hydraulic cylinders, electric cylinders, pneumatic cylinders or a manually operated drive. A toothed rack, a chain drive or a cable pull, for example, are suitable as a manually driven push system.

The push system preferably also has a guide to ensure that the bay windows move evenly and in a precise direction.

The push systems are preferably made of materials such as steel, galvanized steel, stainless steel, aluminum and/or fiber composite materials. If the materials mentioned are not inherently resistant to seawater, they will be or are provided with a coating known to those skilled in the art, which prevents corrosion caused by the effects of seawater.

The push system can be contained in the bottom of the extendable bay windows. To ensure proper guidance, the push system in this case preferably includes drawers with roller bearings. In other embodiments, the push system may be contained within the walls of the extendable bay window. In these embodiments, the guidance of the push systems is designed, for example, as a self-supporting chain or scissor joint.

If the push system is designed via cylinders, each bay window has at least one cylinder, preferably each bay window has exactly one cylinder. The components of the cylinders are designed to be seawater-resistant, which means that the cylinder wall, the pistons and the cylinder rings have seawater-resistant materials. In one embodiment These components are made of stainless steel. The cylinders have a suitable drive.

The use of water hydraulic cylinders, bio-oil hydraulic cylinders, electric cylinders and pneumatic cylinders offers particularly environmentally friendly embodiments, as they do not use oils that are harmful to the environment. In the event of a leak, contamination of the water can therefore be avoided.

• Wasser reduziert die Betriebskosten; es sind keine Vorkehrungen für Ölaustritt (Ölabscheider) zu treffen. Es entstehen keine Lager- und Entsorgungskosten für Hydraulikflüssigkeiten.
• Leitungswiderstände sind bei Wasser deutlich geringer als bei Öl; dadurch kann sich der Wirkungsgrad verbessern.
• Mit Wasser kann die Rückleitung entfallen, vergleichbar mit pneumatischen Anlagen.
• Wasser hat aufgrund der geringeren Kompressibilität bessere Regelungseigenschaften.

In one embodiment, water hydraulic cylinders are used. These offer the following advantages over oil or bio-oil hydraulic cylinders:
Water as a fluid medium is not flammable.

• Water reduces operating costs; There are no precautions to be taken for oil leaks (oil separators). There are no storage or disposal costs for hydraulic fluids.
• Line resistances are significantly lower with water than with oil; this can improve the efficiency.
• With water, the return line can be eliminated, comparable to pneumatic systems.
• Water has better control properties due to its lower compressibility.

Due to the low viscosity of water, oil hydraulic pumps and valves cannot be used for water hydraulic cylinders, which is why gear pumps are used here according to the invention.

Both bay windows are preferably moved synchronously with one another. The synchronous movement of the bay windows prevents the bay windows from tilting and maintains the greatest possible directional stability of the watercraft. In this case, different counterforces on the different sides of the vessel may have to be taken into account due to current and wind direction.

In one embodiment of the present invention, this is implemented by regulating the power of the drive of the cylinders of the thrust system. Depending on the wind strength, wind direction and orientation of the watercraft, the power of the thrust system drive is adjusted. Information about the wind strength, wind direction and orientation of the watercraft is usually determined by sensors to navigate the watercraft and is therefore available as information Disposal. In the control of the thrust system, suitable parameters for the performance of the drive for defined wind strengths, wind directions and orientations of the watercraft are stored for each thrust system, so that the performance of the drive for each thrust system can be automatically adjusted via the control of the thrust system. As described, this adjustment is made separately for each bay window so that different wind conditions on the port and starboard sides can be taken into account. In this way, the bay windows can be moved synchronously at a constant speed. In one embodiment of the present invention, the bay windows are operated at a constant speed between 0.1°m/s and 0.5°m/s, preferably at a constant speed between 0.2°m/s and 0.3°m/s. s, particularly preferably extended at a constant speed of 28 mm/s. According to the invention, both bay windows are extended at the same speed.

• Stoppen und Reversieren der Erker-Verstellung oder
• Stoppen der Erker-Verstellung und Fortsetzung der Verstellung bei gemindertem Tempo.

During the normal driving and lying operation of a watercraft, situations will arise from time to time in which, for example: B. tree trunks, but also other watercraft, quay walls, boat moorings preclude a bay window adjustment to widen the boat and, in the event of an active adjustment movement, make it necessary to stop and possibly reverse the process. In order to avoid dangerous situations, the watercraft therefore has a collision system in one embodiment. This is linked to the control of the thrust system. A suitable collision system can, for example, have a PMD (photo-mixing detector) sensor system. PMD sensors work according to the time-of-light or time-of-flight (ToF) method. PMD sensors illuminate the scene with an infrared light source and calculate the distances between the sensor and the object surfaces based on the travel time of the light reflected from the surface. They emit light waves in the near infrared (NIR) range - short-wave IR radiation that directly follows the visible (red) range from 780 to 1,400 nm. In one embodiment, each bay window has at least one PMD sensor, preferably each bay window has two PMD sensors. The measured values of the PMD sensors can be evaluated using an image processing program. Suitable image processing programs include, for example, the free program library OpenCV (Open Computer Vision). A library of possible collision partners and their PMD data is stored in the control system of the thrust system, so that a comparison can be made to determine which collision partner is currently recognized. By controlling the thrust system, one of the following reactions can then take place automatically:

• Stopping and reversing the bay window adjustment or
• Stopping the bay window adjustment and continuing the adjustment at a reduced speed.

In one embodiment of the present invention, the push system for each bay is attached to the floor of the bay. According to the invention, the bay window process can be carried out at any time on open water or in a harbor.

The bay windows can be stored on the boat floor using waterproof ball bearings and/or dry sliding bearings. In a preferred embodiment, the bay windows are supported by dry plain bearings. In one embodiment, the dry plain bearings are rolled dry plain bearings made of high-strength polytetrafluoroethylene (PTFE). The bearing can be made of a three-layer composite material consisting of a steel strip, a sintered porous bronze layer and a surface sliding layer made of PTFE. The bearing preferably has a coefficient of friction of 0.03 to 0.18. Advantageously, such a dry bearing does not require lead additives or additional lubricants, is resistant to wear and corrosion, is used without oil and is therefore environmentally friendly and largely maintenance-free.

The extendable bay windows must be sealed off from the fixed hull at all times so that no precipitation, splash water, waves or dirt can get inside. In one embodiment of the invention, each bay window of the watercraft therefore has a seal. The seal must bridge the entire gap between the movable bay window, the fixed boat floor and the rigid attic in a flexible and dimensionally stable manner. In a preferred embodiment, the seal is a multi-chamber seal that is attached all around each bay window. The multi-chamber seal seals the bay window from the bottom of the boat, the side walls of the cabin and the roof of the cabin. Multi-chamber seals have the advantage that if one chamber develops a leak, the other chamber is able to maintain the tightness of the bay windows against the boat floor, roof and side flashings.

• Es ist meerwassertauglich und besitzt im Süß- wie im Salzwasser -40 bis +100 °C eine hohe Beständigkeit.
• Es ist resistent und abweisend gegen Fischöl, weitere tierische Fette und pflanzliche Fette sowie Erdöl, Mineralöl, Getriebeöl, Schmieröl und Heizöl.
• Es besitzt gute mechanische Eigenschaften, z. B. im Vergleich zu anderen Elastomeren eine höhere Abriebfestigkeit (Rissfestigkeit 100 N/mm; Abrasion 17 mm³).
• Darüber hinaus verfügt das Material auch über eine sehr gute Alterungs- und Ozonbeständigkeit.

In one embodiment of the invention, the multi-chamber seal has thermoplastic polyurethane (TPU), in particular in the H-ECOPUR version [1]. H-ECOPUR has an advantageous elongation coefficient of ≥ 330% and a tensile strength of ≥ 50 MPa and therefore has a good balance between ductility and stiffness (durometer hardness: Shore A 95 ^±2 , Shore D 48 ^±3 ). For use in inland and Commercially available high-performance TPU is ideal for sea waters due to the following properties:

• It is suitable for sea water and has a high resistance to temperatures of -40 to +100 °C in both fresh and salt water.
• It is resistant and repellent to fish oil, other animal fats and vegetable fats as well as petroleum, mineral oil, gear oil, lubricating oil and heating oil.
• It has good mechanical properties, e.g. B. compared to other elastomers a higher abrasion resistance (crack resistance 100 N/mm; abrasion 17 mm ³ ).
• In addition, the material also has very good aging and ozone resistance.

On the one hand, the multi-chamber seal should provide an optimal seal and, on the other hand, not hinder the movement of the bay window and also have the lowest possible wear when moving the bay window. In order to ensure this, the operating geometry, i.e. the expansion of the multi-chamber seal, can be changed according to the invention. This can be achieved by applying air pressure, water pressure and/or negative pressure to the multi-chamber seal. Alternatively, adjustment through the action of magnetic forces is also possible. The multi-chamber seal can be expanded by applying air pressure or water pressure. By regulating the air pressure or water pressure in the multi-chamber seal, the degree of expansion of the multi-chamber seal can be controlled. When moving the bay windows, the pressure can be reduced accordingly in order to be able to move the bay windows through the seal with as little resistance as possible. In this way, wear on the multi-chamber seal can also be minimized. If the bay window is not moved, the pressure in the seal is increased accordingly in order to achieve a correspondingly better seal through greater expansion of the multi-chamber seal.

The pressurization drive can be implemented, for example, by a gear pump, which is also able to pump low-viscosity liquids such as water in relatively small quantities.

In a further embodiment, the multi-chamber seal is subjected to negative pressure. In this embodiment, negative pressure is applied when the bay windows are moved. This causes the multi-chamber seal to contract and makes it easier to move the bay windows. If the bay windows are not moved, nothing will happen Negative pressure applied. The multi-chamber seal is then in its natural expansion and seals the bay windows from the fixed boat parts. This embodiment has the advantage that in the rest position, i.e. when the bay windows are not moved, the multi-chamber seals do not have to be pressurized with medium. This protects the multi-chamber seals and the seal is less susceptible to leaks.

The control of the change in the operating geometry, i.e. the expansion of the multi-chamber seal, is preferably carried out by controlling the extensions of the bay windows.

In one embodiment of the invention, a water channel is also attached all around behind the multi-chamber seal on the bay window on the side facing the boat's longitudinal axis. In the event of a leak in the multi-chamber seal, water can be drained away through this.

In a further embodiment of the invention, each bay window of the watercraft also has a sealing lip. The sealing lip is attached all around the outer edge of the bay window and lies in a lip shape on the outer walls of the bay window, the boat floor and the cabin roof. The sealing lip traps impact water and dirt.

• FKM haben eine sehr hohe Zerreißfestigkeit.
• FKM zeigen eine sehr geringe Stoßelastizität.
• Die Reißdehnung von FKM liegt zwischen 100 und 300 %.
• Die Verformung durch äußeren Druck, der sogenannte Druckverformungsrest, ist gering.
• Schließlich entsprechen die thermischen Eigenschaften des FKM mit einer Kältebeständigkeit von maximal -40 °C und einer Wärmebeständigkeit bis zu 200 °C vollumfänglich unseren Vorgaben (-30 bis +40 °C).

The sealing lip is preferably made of an elastic material. In one embodiment of the present invention, the sealing lip comprises fluorine rubber (FKM). The material is characterized by very high temperature and chemical resistance. It is seawater, aging, UV and ozone resistant and has a self-extinguishing fire behavior. Furthermore, it shows good resistance to mineral oils and fats, aliphatic, aromatic and chlorinated hydrocarbons, fuels, flame-retardant pressure fluids as well as many organic solvents and chemicals. In general, fluororubbers are characterized by advantageous mechanical properties for this use:

• FKM have a very high tensile strength.
• FKM show very low impact elasticity.
• The elongation at break of FKM is between 100 and 300%.
• The deformation caused by external pressure, the so-called compression set, is small.
• Finally, the thermal properties of the FKM, with a maximum cold resistance of -40 °C and a heat resistance of up to 200 °C, fully meet our specifications (-30 to +40 °C).

The driving characteristics of a watercraft are significantly influenced by the shape of its floating bodies. Due to the possibility of adjusting the floating bodies in one of the embodiments of the present invention, they must be designed in such a way that the boat has good driving characteristics both in the collapsed and in the expanded state.

The floating bodies are therefore advantageously shaped in such a way that they nestle together when not extended and thus optimally guide the flow past the watercraft. If the watercraft has three floating bodies, in a preferred embodiment at least one long keel is attached to the middle floating body. In a particularly preferred embodiment, the middle floating body has three long keels. These improve the water position of the watercraft. In a further embodiment of the watercraft according to the invention, the watercraft has three floating bodies, the draft of the two outer floating bodies being a maximum of 223 mm. In this way, the movement resistance that the water acts on the floating bodies when moving can be kept low.

In a further embodiment, the watercraft has three floating bodies with the following geometric properties. The outer and central floating bodies taper in horizontal alignment from just above the waterline. When the floating bodies meet, a wedge would open downwards, making it impossible for an obstacle to be trapped between the two floating bodies. In one embodiment, the floating bodies therefore have a straight contour and a taper angle between 7 and 11°. This geometry serves to protect against flotsam and thus prevents the flotsam from becoming trapped between the floating bodies when moving.

In one embodiment of the present invention, the floating bodies have aluminum or an aluminum alloy. Aluminum is already relatively seawater-resistant in the standard versions available, resistant to long-term solar radiation (heat reflection) and can be welded by hand. It allows a largely free design and different construction variants. It leaves can be repaired relatively easily almost anywhere. Compared to plastics, it offers the advantage of being able to do without large and/or expensive tools. Building with aluminum also means that different functional spaces can be created in the floating bodies: batteries, water tanks, the heating system and other storage spaces could be accommodated in them. In one embodiment, the aluminum or the aluminum alloys can also be treated, for example, by erosion. For example, wire EDM or sinker EDM is possible here.

• Der Bootsboden und der darauf befindliche Aufbau, sowie die Verstellung der Erker müssen naturgemäß sehr starr ausgeführt werden, um die Funktion des Verfahrens der Erker sicherzustellen und um den Aufbau und die Inneneinrichtung im Erker und in der Kabine zu schützen, z. B. Glasscheiben und Möbel.
• Die Schwimmkörper jedoch benötigen eher Flexibilität. Sie sollten sich an den Seegang anpassen und in diesem Kontext die Aufrechterhaltung des Komforts im Hausboot gewährleisten, indem Wellenschläge sowie das Rollen und Stampfen des Bootes abgemildert werden. Ebenso sollten beim Anlegen der Höhenunterschied zwischen Boot und Steg auszugleichen und optional bei hohem Wellengang den Bootsboden anzuheben sein.

Another important point is the connection of the floats to the bottom of the boat. Two requirements must essentially be met here.

• The boat floor and the structure on it, as well as the adjustment of the bay windows, must naturally be very rigid in order to ensure the function of the bay windows and to protect the structure and the interior fittings in the bay window and in the cabin, e.g. E.g. glass panes and furniture.
• The floating bodies, however, require more flexibility. They should adapt to the sea state and in this context ensure the maintenance of comfort in the houseboat by mitigating wave impacts and the rolling and pitching of the boat. When mooring, the difference in height between the boat and the dock should also be compensated for and, optionally, the bottom of the boat should be raised when the waves are high.

In one embodiment of the present invention, the floating bodies are attached to the bottom of the boat by an elastic mounting, the elastic mounting being selected from the group comprising air bellows, air springs and rubber buffers.

If the boat encounters obstacles, as often happens at locks or when docking, the floats advantageously give way and soften the impact. They therefore serve both to maintain comfort and to protect against damage and offer the crew more protection. The practical background: People most often fall overboard when docking or in a collision with obstacles. The intended storage cushions an impact and thus prevents accidents to a large extent.

By using air bellows and/or air springs, it is also possible to change the distance between the boat floor and the floats. If there are high waves, the watercraft can therefore advantageously be raised further above the waterline.

In one embodiment of the present invention, the watercraft has an energy system for generating energy via solar cells. This makes it possible to generate autonomous energy that is also particularly environmentally friendly.

• Der Kabinenbereich kann durch die automatisierte oder händische Verfahrbarkeit der Erker vergrößert und verkleinert werden. Mit den Erkern können auch die Positionen der Schwimmkörper des Wasserfahrzeuges verändert werden. Neben mehr Komfort für den Nutzer wird so eine deutliche Verbesserung im Bereich von Schleusen und engeren Wasserpassagen geschaffen, und das im Zweifel unvermeidbare Stoppen des Wasserfahrzeuges und ein partieller Transport über Land, um Schleusen zu umgehen, entfällt. Weiterer Vorteil: Muss das Wasserfahrzeug zum Einsatzort über Land transportiert werden, wird angesichts der minimal möglichen Breite von 3,00 Meter kein teurer Schwertransport nötig, was erhebliche Kosten einsparen lässt.
• Zum Zweck der Kranbarkeit verfügt das Wasserfahrzeug über Kranösen und kann an diesen hochgehoben werden. Ein Schlupfen des Wasserfahrzeuges ist nicht nötig.
• Das Wasserfahrzeug bietet einen Kollisionsschutz (Baumstämme, andere Fahrzeuge, Kaimauern etc.) und eine automatisierte Treibgutabwehr der Schwimmkörper.
• Ein Teil der Energieversorgung kann autark über Solarzellen erfolgen.
• Das Wasserfahrzeug bietet auch als Arbeitsschiffe in Binnengewässern neue Perspektiven. Diese könnten auf unterschiedlichen Wasserstraßen, wie etwa in schmalen Kanälen, eingesetzt und auf dem Landweg schnell und kostengünstig transportiert werden.
• Das erfindungsgemäße Wasserfahrzeug ist sowohl für Binnengewässer als auch für küstennahe Meerregionen tauglich, da sämtliche Verstellbewegungen homogen, in Balance zwischen Kabine, Erker und Schwimmkörper angepasst an die jeweiligen Umgebungsbedingungen (Gewässertyp, Windstärke, Windrichtung) automatisiert oder händisch ausgeführt werden. Insbesondere entspricht das Wasserfahrzeug den CE-Kategorien im Bootsbau: CE-Kategorie C (küstennahe Gewässer, Beaufort bis Stufe 6, Wellen bis 2 Meter Höhe) und CE-Kategorie D (geschützte Gewässer bzw. Binnengewässer, Beaufort bis Stufe 4, Wellen bis 0,5 m Höhe).

The watercraft according to the invention therefore offers numerous advantages over the prior art.

• The cabin area can be enlarged and reduced by the automated or manual movement of the bay windows. The bay windows can also be used to change the positions of the watercraft's floating bodies. In addition to greater comfort for the user, this creates a significant improvement in the area of locks and narrower water passages, and the need to stop the watercraft and partially transport it over land to avoid locks, which is unavoidable in cases of doubt, is eliminated. Another advantage: If the watercraft has to be transported overland to the site of use, given the minimum possible width of 3.00 meters, expensive heavy transport is not necessary, which saves considerable costs.
• For the purpose of craneability, the watercraft has crane eyes and can be lifted using these. It is not necessary for the watercraft to slip.
• The watercraft offers collision protection (tree trunks, other vehicles, quay walls, etc.) and automated floating debris protection.
• Part of the energy supply can be provided independently via solar cells.
• The watercraft also offers new perspectives as work vessels in inland waters. These could be used on different waterways, such as narrow canals, and transported quickly and inexpensively by land.
• The watercraft according to the invention is suitable for both inland waters and coastal sea regions, since all adjustment movements are carried out automatically or manually in a homogeneous manner, in balance between the cabin, bay window and floating body, adapted to the respective environmental conditions (type of water, wind strength, wind direction). In particular, the watercraft complies with the CE categories in boat building: CE category C (coastal Waters, Beaufort up to level 6, waves up to 2 meters high) and CE category D (protected waters or inland waters, Beaufort up to level 4, waves up to 0.5 m high).

Figur 1

stellt ein Wasserfahrzeug in der Aufsicht mit eingefahrenen Erkern dar;

Figur 2

stellt ein Wasserfahrzeug in der Aufsicht mit ausgefahrenen Erkern dar;

Figur 3

(A) stellt ein Wasserfahrzeug in Schnitt mit ausgefahrenen Erkern dar; (B) stellt ein Wasserfahrzeug im Schnitt mit eingefahrenen Erkern dar;

Figur 4

(A) stellt ein Wasserfahrzeug in Schnitt mit ausgefahrenen Erkern dar; (B) stellt ein Wasserfahrzeug im Schnitt mit eingefahrenen Erkern dar;

Figur 5

(A) stellt ein Wasserfahrzeug in Schnitt mit ausgefahrenen Erkern dar; (B) stellt ein Wasserfahrzeug im Schnitt mit eingefahrenen Erkern dar;

Figur 6

stellt einen Ausschnitt eines Wasserfahrzeuges dar, bei dem die Lagerung der Schwimmkörper und die Dichtung eines Erkers deutlich zu erkennen sind;

Figur 7

(A) und (B) stellen eine treibgutabweisende Geometrie der Schwimmkörper dar.

The present invention is explained in more detail below using 7 figures and 2 exemplary embodiments.

Figure 1

represents a watercraft in top view with retracted bay windows;

Figure 2

represents a watercraft in top view with extended bay windows;

Figure 3

(A) represents a watercraft in section with the bay windows extended; (B) represents a watercraft in section with the bay windows retracted;

Figure 4

(A) represents a watercraft in section with the bay windows extended; (B) represents a watercraft in section with the bay windows retracted;

Figure 5

(A) represents a watercraft in section with the bay windows extended; (B) represents a watercraft in section with the bay windows retracted;

Figure 6

represents a section of a watercraft in which the storage of the floating bodies and the seal of a bay window can be clearly seen;

Figure 7

(A) and (B) represent a flotsam-repellent geometry of the floating bodies.

Figure 1 shows a top view of a watercraft 100 with retracted bay windows 10, 20. The watercraft 100 is a houseboat in which the bay windows 10 and 20 have installations for the kitchen and sanitary area. When the bay windows 10, 20 are folded together, as shown, it is clearly visible that the living space can be fully used.

Figure 2 exhibits the houseboat Figure 1 with extended bay windows 10, 20. By extending the bay windows 10, 20, additional space is created in the cabin and the comfort of a user is thereby significantly increased.

Figure 3 (A) and (B) show an embodiment of the watercraft 100 in section. In Figure 3 (A) the bay windows 10, 20 are extended and protrude beyond the floating bodies 30, 31, 32. In the extended position, the bay windows 10, 20 are secured in their position by the locks 90, 91. The bay window 10 is surrounded by the multi-chamber seal 60 and seals it against the other adjacent components. The bay window 10 is moved by the extension 80 and is on the bearing 50, 52 stored. The bay window 20 is surrounded by the multi-chamber seal 62 and seals it against the other adjacent components. The bay window 20 is moved by the extension 81 and is stored on the bearing 51, 52. The watercraft 100 has three floating bodies 30, 31, 32, which are attached to the bottom of the boat via air springs 70, 71. The floating bodies 30, 31, 32 are not moved with the bay windows 10, 20 in this embodiment. In Figure 3 (B) the watercraft is shown with retracted bay windows 10, 20. The watercraft also has a roof which is surrounded by a roof railing 40, making it safe to access. The roof railing 40 can be folded to reduce the height of the watercraft. This proves to be particularly useful when driving through bridges.

Figure 4 (A) and (B) show a further embodiment of the watercraft 100 in section. The watercraft 100 has a very similar structure to the watercraft Figure 3 (A) and (B) on. However, in this embodiment, as in Figure 4 (A) shown the floating bodies 30 and 32 move with the bay windows 10, 20. The movement of the bay window 10 and the floating body 30 is realized by the push system 80, while the movement of the bay window 20 and the floating body 32 is realized by the push system 81. Figure 4 (B) represents the watercraft 100 with retracted bay windows 10, 20.

Figure 5 (A) and (B) presents another watercraft 100 analogous to the one in Figure 3 (A) and (B) shown watercraft 100 on average. In contrast to Figure 3 (A) and (B) This watercraft is a monohull boat with only one floating body 30.

Figure 6 represents a section of a watercraft 100, in which the storage of the floating bodies 30, 31 and the multi-chamber seal 60 of a bay window 20 can be clearly seen. The floating body 30 is attached to the bottom of the boat via a joint 72 and air springs 70. The joint 72 is an optional design and not mandatory. The floating body 31 is attached to the bottom of the boat via the air suspension 73, 74. Furthermore, the multi-chamber seal 60 can be seen, which seals the bay window 20 against all fixed components. Behind the multi-chamber seal 60, viewed in the direction of the longitudinal axis of the boat, there is a water channel 61 through which wind-penetrating water can drain in the event of a leak in the multi-chamber seal 60. This prevents water from entering the cabin space.

Figure 7 (A) and (B) represent a flotsam-repellent geometry of the floating bodies. The dotted line represents the water line for the floating bodies in the water 30, 31, 32. For the sake of clarity, only the floating bodies 31, 31, 32 are shown, but not the rest of the watercraft 100. Three long keels can be seen on the floating body 31. Furthermore, the floating bodies taper horizontally from just above the waterline. Flotsam 200 is thereby pushed downwards when the floating bodies 30, 32 move together and is not clamped between the floating bodies 30, 31 or 31, 32.

Example 1

A monohull boat was equipped with two bay windows that could be extended using water hydraulic cylinders. The width of the monohull boat was 3.00 m with the bay windows retracted, which meant that the boat could be transported using conventional transport. At the harbor, the monohull boat could be lowered into the water using four lifting eyes on the roof. It was not necessary for the boat to slip. After leaving the harbor, the boat's bay windows were extended, increasing the area of the cabin to 4.40 m. The bay windows could be moved on the water in any weather condition, so that the boat could be moved through a lock before passing through could be narrowed by retracting the bay windows.

Example 2

A trimaran was equipped with two bay windows that could be extended using water hydraulic cylinders. The width of the trimaran was 3.00 m with the bay windows retracted, which meant that the boat could be transported using conventional transport. At the harbor, the trimaran could be lowered into the water using four lifting eyes on the roof. It was not necessary for the boat to slip. After leaving the harbor, the boat's bay windows were extended, increasing the area of the cabin to 4.40 m. As the bay windows were moved, the outer floating bodies of the trimaran were also moved. The water position and stability of the watercraft were particularly advantageous. The bay windows could be moved on the water in any weather condition, so that the boat could be narrowed accordingly by retracting the bay windows before passing through a lock.

bibliography

1. [1] https://www.skf.com/binaries/pub12/Images/0901d19680186fda-H-ECOPUR-material-data-sheet --- 12467_2-EN_tcm_12- 269872.pdf#cid-269872

Reference symbol list

10, 20

bay window

30, 31, 32

Floating body

40

Roof railing

50, 51, 52, 53

camp

60, 62

Multi-chamber seal

61

gully

70, 71

Air suspension

72

joint

73, 74

Air suspension

80, 81

Thrust system

90, 91

Locking

100

watercraft

200

flotsam

Claims (10)

Watercraft comprising a cabin with 4 corner pillars and a roof, a boat floor and at least one floating body
characterized in that
the cabin has a bay window on the starboard and port side and optionally a platform on the stern and/or bow, with both bay windows and possibly the platforms on the bow and/or stern being movable perpendicular to the longitudinal axis of the boat into a first and a second position. Watercraft according to claim 1, characterized in that the watercraft has at least three floating bodies. Watercraft according to claim 2, characterized in that each bay window and possibly the platforms at the bow and / or stern are each connected to at least one floating body via the boat floor and the at least one floating body, which is connected to a bay window and optionally the platforms at the bow and / or Rear is connected, together with the bay window and possibly the platforms at the bow and / or stern can be moved into the first and second position. Watercraft according to one of the preceding claims, characterized in that the bay windows and possibly the platforms at the bow and / or stern can be moved synchronously. Watercraft according to one of the preceding claims, characterized in that each bay window has a seal. Watercraft according to claim 5, characterized in that the seal is a multi-chamber seal that can be adjusted by air pressure, water pressure, magnetic forces and / or negative pressure. Watercraft according to one of the preceding claims, characterized in that the bay windows and possibly the platforms at the bow and / or stern can be moved by a push system. Watercraft according to one of the preceding claims, characterized in that the thrust system has a drive selected from the group containing oil hydraulic cylinders, water hydraulic cylinders, bio-oil hydraulic cylinders, electric cylinders, pneumatic cylinders or a manually operated drive. Watercraft according to one of the preceding claims, characterized in that the four corner pillars of the cabin and the roof of the cabin are designed to be torsion-resistant. Watercraft according to one of the preceding claims, characterized in that the watercraft has at least 4 crane eyes on the roof of the cabin.

Images