Watercraft for coupling to a land vehicle

Abstract

Watercraft for coupling to a land vehicle, with at least one floating body (1), with a chassis (2) and with a connecting component (3) for detachable connection to the land vehicle, characterized in that the chassis (2) and the connecting component (3) are arranged on a carrier (4), that the floating body (1) can be brought reversibly from a transport position (T) into an operating position (B), wherein the width dimension (SB) of the floating body (1) in the transport position (T) and the width dimension (TB) of the carrier (4) are matched to the width dimension (F) of a roadway (5) and correspond to this or are smaller than this.

Description

[0001] The present invention relates to a watercraft for coupling to a land vehicle, with at least one floating body, with a chassis and with a connecting component for detachable connection to the land vehicle,

[0002] The general problem of transporting a watercraft to the site of use is that a trailer is required, which is usually attached to a traction unit via a connecting component in the form of a drawbar. Loading and unloading is challenging, as is the space required, as is the organization of empty runs to the location where the watercraft can be returned after a tour.

[0003] Regarding the term "land vehicle," it is stated that this includes both human-powered and mechanically powered vehicles. Since a trailer attached to the vehicle is considered a vehicle, this does not exclude the possibility of the watercraft being coupled to a trailer belonging to the land vehicle. Furthermore, the term "connecting component" is not intended to cover only the general case of the watercraft being towed during transport. Alternatively, it could also refer to a push rod if the watercraft is positioned in front of the land vehicle and is being pushed.

[0004] A boat equipped with a chassis, thus obviating the need for a trailer, is known from the publication DE 1 890 536 U1. In this case, the floating body is necessarily present as the boat hull, and a chassis is detachably attached directly to the underside of the hull. This is removed and stored in a holder on the boat when the boat is launched. Once the boat is taken out of the water, the chassis is reattached to the underside of the boat. The boat's width is limited by the width of the roadway. This restricts the state of the art to a specific boat type. Watercraft such as catamarans cannot be transported in the conventional way, as they usually exceed the width of a roadway.

[0005] The invention is based on the object of providing a watercraft of the type in question which allows a variation of the width dimension.

[0006] The above object is achieved by the features of claim 1. According to claim 1, a watercraft of the type in question is designed and developed in such a way that the chassis and the connecting component are arranged on a support such that the floating body can be reversibly moved from a transport position to an operating position, wherein the width dimension of the floating body in the transport position and the width dimension of the support are matched to the width dimension of a roadway and correspond to or are smaller than this.

[0007] Firstly, it has been recognized that the watercraft known from the prior art is fixed in its width and is limited by the fact that it can correspond to a maximum of the roadway width. Furthermore, it has been recognized that it is desirable to transport watercraft of different widths - with or without an extra trailer. Catamarans in particular generally have larger widths. According to the invention, it has been recognized that the watercraft can be varied in width by combining two features. On the one hand, it has been recognized that the invention allows the floating body and the support to be adapted to the width of a roadway during transport, with the road traffic regulations specifying the dimensions. On the other hand, it has been recognized that the invention allows the floating body to be placed in two different positions, namely a transport position and an operating position.According to the invention, it was further recognized that it is sufficient if the floating body maintains dimensions suitable for road use only during transport. The term "suitable for road use" does not exclude the possibility of being smaller than the width of a roadway and, for example, being adapted to the width of a cycle path. Single-track bicycles and their trailers have a maximum width of 1 m. For two-track land vehicles, the maximum width is 2 m - 2.5 m. The "small width" of the watercraft during transport also offers the advantage of space-saving storage of the watercraft when not in use.

[0008] A watercraft / floating body in the form of a boat could be positioned upright or sideways on the carrier. This arrangement would allow the boat to be smaller than the width of the carrier and thus smaller than the width of the roadway. Additional stabilizers and fastening devices could be provided for transport. The boat could first be rotated about a pivot axis into a position perpendicular to the carrier surface and then moved linearly towards the center of the carrier, whereby the statics must be considered in advance, taking the boat's geometry into account. An arrangement of the floating body inclined to the carrier surface is also possible. The carrier could be equipped with appropriate guidance and support devices. Once the predetermined transport position has been reached, the boat no longer protrudes beyond the width of the roadway.After transport, the boat could be returned to a horizontal position and, depending on its design, either detached from the support and launched into the water alone or together with it. If the boat remains connected to the support, various measures could be taken beforehand. One measure could, for example, be to provide a recess on the underside of the boat into which the support can be retracted to a depth above the boat's immersion depth, preventing it from protruding into the water. Such a recess could also be closed with hatches that can be reopened when the chassis is needed.

[0009] In a watercraft in the form of a catamaran, several floating bodies could be provided, with an even number of floating bodies being arranged on both sides of the support, in particular perpendicular to the longitudinal axis of the support. A pairwise arrangement of the floating bodies in the surface plane of the support in the operating position, symmetrical to the longitudinal axis of the support, as a mirror image, is preferred. With an odd number of floating bodies, one or more pairs of floating bodies could be included, which in the operating position are arranged like a catamaran with an even number of floating bodies. The additionally present singular floating body or a row of floating bodies could, for example, be aligned with the longitudinal axis of the support and otherwise also extend in the surface plane of the support in the operating position.

[0010] The floating bodies of the watercraft according to the invention in the form of a catamaran could be connected to pivoting components which, in the transport position, can be vertical or angled or, in special cases, parallel ( Fig. 3) extend to the carrier. While it is particularly important that the floats in the transport position correspond to or are smaller than the width of the roadway, it is advantageous, given the dual function of the pivoting components as booms in the operating position, if they extend perpendicular to the carrier with the floats attached to them, in order to achieve long boom lengths. Alternatively, the pivoting components arranged on both sides of the carrier could also extend towards the carrier at an angle to each other, which could increase stability during transport and reduce air resistance. For catamarans with an odd total number of floats, a suitable arrangement could be found for the other floats to achieve the desired densely packed transport position. Here, a single float could, for example, also be arranged parallel to the carrier ( Fig. 3) extend.

[0011] The pivoting components could allow the catamaran to achieve particularly large widths in the operating position, extending far beyond the roadway width. The pivoting components could be connected to the support in a rod-like, rotatable manner and, together with the floats, determine the width of the vessel in the operating position. According to a further embodiment, the pivoting components could be designed as telescopic rods, allowing the user to vary the float spacing.

[0012] While the pivoting components in the transport position contribute to a densely packed arrangement of the floats, particularly perpendicular to the carrier and preferably within the carrier dimensions, the pivoting components in the operating position serve as booms that project far beyond the carrier and to whose free ends the floats are attached.

[0013] The present invention could advantageously provide for the support to be a component of the watercraft, at least in the operating position but also in the transport position. To ensure that the undercarriage of a catamaran as a watercraft is not in the water in the operating position, the floats could have an immersion depth that ensures that the undercarriage is spaced from the water surface. The undercarriage could comprise a wheel axle with wheels. With a float height of 60 cm and an immersion depth of 20 cm, a distance of 40 cm would be available within which the undercarriage could extend above the water surface. Other sizes are possible, depending on the wheel sizes and float types of various dimensions and materials available on the market.

[0014] With regard to the advantageous embodiment of the invention, which provides for permanently connecting the carrier to the chassis and the floating bodies to the pivoting components, making both components of the watercraft, the carrier could comprise a frame construction with at least two spaced-apart longitudinal members and at least two spaced-apart cross members. Depending on the use of the watercraft, the areas between the longitudinal and cross members could be more or less open and / or closed. A closed area could, for example, be provided in the form of a load-bearing area, in particular for storing a bicycle, and / or a deck with seats for people. Furthermore, the carrier could have a mount for an outboard motor. Each embodiment allows the outboard motor to be easily arranged on one of the cross members. Storage spaces could also be integrated into the carrier.Storage spaces could also be formed in the floating body.

[0015] In a catamaran, the longitudinal member of the frame construction could comprise at least two sections and the section further away from the landing gear or a selected section of the longitudinal member could be pivotable about a pivot axis relative to another section of the longitudinal member into the generally vertical transport position or into the generally horizontal operating position.

[0016] The watercraft according to the invention in the form of a catamaran could be provided with an odd number of floating bodies. A single floating body could be synchronized with pairs of opposing floating bodies in the transport position and, in the operating position, have its own arrangement in relation to the support - namely parallel or aligned with the longitudinal axis of the support. Pairs of pivoting components / booms could be provided on the sections of the longitudinal supports of an exemplary trimaran, to which the individual floating body is attached. The single floating body together with the pivoting component / boom could be pivoted transversely to the longitudinal axis of the support. This single floating body could be pivotable into the transport position about a pivot axis on the second section of the longitudinal support. Advantageously, the pivoting components orthe two pivoting components / booms provided for the singular floating body extend parallel to the longitudinal axis of the carrier in the operating position, while the single floating body extending between the booms is aligned with the longitudinal axis of the carrier in the operating position.

[0017] In a trimaran, the single floating body attached to the outriggers on the second section of the longitudinal beam of the frame structure could rest on the floating bodies of the first section of the longitudinal beam in the transport position. For this purpose, the second section and the pivoting component / outrigger supporting the single floating body could each be rotated about a pivot axis running perpendicular to the longitudinal axis of the beam.

[0018] Furthermore, other frame constructions with a different number of longitudinal and cross beams, as well as other shapes and mobility options, could be used. It is particularly advantageous, with regard to achieving the most compact transport positions possible, if the cross beams and longitudinal beams are at least partially designed as a guide or guide rail. The guide could be implemented using an open hollow profile. For example, a U- or C-profile could be considered, which is dimensionally capable of accommodating a pivoting component connected to the float, which in the operating position acts as a boom, to achieve the compact transport position without damaging the float. By incorporating the pivoting component / boom into the guide, small overall heights in the transport position can be achieved and adaptation to the dimensions of the other floats within the transport position can be achieved ( Fig. 4).

[0019] Not only the longitudinal beams, but also the crossbeams can be designed at least partially as guides and, in the transport position, each accommodate a pivoting component / outrigger within the guide. Even on catamarans with an even number of paired floats, at least one of the pairs of floats could be handled differently than the other pairs of floats in the transport position to minimize overall size. The corresponding crossbeam could incorporate a hinge, forming two pivoting sections. The pivot axis formed by the hinge should preferably coincide with the longitudinal axis of the beam. As a result of the pivoting components / outriggers being lowered into the guides of the crossbeams, the floats fold together above the beam, with a significantly reduced overall height, ready for the next movement. Fig. 6)

[0020] By lowering selected pivoting components / outriggers of external floating bodies into the guides of the longitudinal or transverse beams of the frame structure of the beam and by pivoting them upstream or downstream, it is advantageously possible for the external floating body of the second or third longitudinal beam section to be flush with the floating bodies of the first or second longitudinal beam section in the transport position and at the same height. In this way, the advantageously compact transport position of the watercraft according to the invention is achieved.

[0021] According to a particularly preferred embodiment of the watercraft according to the invention with regard to buoyancy, the floating bodies could be connected to one another almost seamlessly in the operating position, parallel to the longitudinal axis of the support, so that the individual floating bodies form a homogeneous overall floating body, particularly in the shape of a skid. This applies to catamarans with at least four floating bodies, which are arranged in pairs opposite one another and consecutively in the operating position.

[0022] The previous embodiments relate to watercraft that have the same direction of movement during the transport position and the operating position in the water. An alternative design of the watercraft according to the invention could be such that the direction of movement in the operating position in the water is offset by 90° from the direction of movement in the transport position on the roadway. Hinges could be used to allow the floating bodies to be pivoted up and down.

[0023] For individual users using a bicycle as a land vehicle, the watercraft according to the invention could be particularly lightweight and be designed as a catamaran with preferably two to six floats. The weight of each float should not exceed 10 kg, preferably in the range of 4 kg to 10 kg, so that it can also be handled by older people or people with less strength. For mechanical land vehicles with motorized traction, longer boats or catamarans and more floats could be realized.

[0024] In addition to the operating position in the water and the transport position on the roadway or on the cycle path, an advantageous embodiment of the watercraft according to the invention also provides for a storage position. The floating bodies, which in the operating position extend in the surface plane of the carrier and in the transport position generally perpendicular to the top of the carrier, could be pivoted to the underside of the carrier in the storage position and protectively cover the chassis. Particularly with regard to the hobby sector, space is at a premium. An embodiment of the watercraft according to the invention with the suitable dimensions can optimally meet this requirement. Bicycle-compatible dimensions of the watercraft according to the invention in the transport position would also be feasible in the storage position with the folding mechanism towards the bottom. The width of the watercraft in the storage position could be less than or equal to 1 m, and the length between 2 m and 4 m.By adapting the surface dimensions of a standardized Europallet measuring 0.8 m x 1.2 m and adapting to typical room heights of up to 2.5 m, the dimensions of the watercraft in storage could be adjusted accordingly. It could be stored on a Europallet to save space, possibly leaning against a wall, or stored in a carport or garage until the next use. Furthermore, the dimensions of the watercraft according to the invention could be 1.2 m to 2 m wide and 2 m to 7 m long.

[0025] There are now various possibilities for advantageously embodying and developing the teaching of the present invention. For this purpose, reference is made, on the one hand, to the claims subordinate to claim 1, and, on the other hand, to the following explanation of four exemplary embodiments with reference to the drawings. In conjunction with the explanation of the stated exemplary embodiments of the invention with reference to the drawings, preferred embodiments and further developments of the teaching are generally explained. The drawings show: Fig. 1 in a schematic, sketch-like representation, a rear view of a first embodiment of the watercraft according to the invention in the form of a boat on the way to the transport position, Fig. 2 in schematic representation, a plan view of a second embodiment of the watercraft according to the invention in the form of a trimaran in operating position, Fig. 3 in schematic representation, a side view of the object from Fig. 2 in a first variant of the transport position, Fig. 4 in schematic representation, a side view of the object from Fig. 2 in a second variant of the transport position, Fig. 5 in schematic representation, a plan view of a third embodiment of the watercraft according to the invention in the form of a catamaran in operating position, Fig. 6 in schematic representation, a side view of the object from Fig. 5 in the transport position, Fig. 7 in schematic representation, a rear view of the object from Fig. 5 in operating position, Fig. 8 in schematic representation, a front view of the object from Fig. 5 in storage position when not in use, Fig. 9 in a schematic, sketchy representation, a plan view of a fourth embodiment of the watercraft according to the invention in the form of a catamaran in operating position, Fig. 10 in schematic representation, a front view of the object from Fig. 9 in transport position and Fig. 11 in schematic representation, a side view of the object from Fig. 9 in the transport position.

[0026] The Fig. 1 to 11 show a watercraft according to the invention for coupling with a land vehicle, with at least one floating body 1, with a chassis 2 and with a Fig. 3, Fig. 4 and Fig. 10 shown connecting component 3 for detachable connection to the land vehicle.

[0027] According to the invention, the chassis 2 and the connecting component 3 are arranged on a support 4 and the floating body 1 can be reversibly moved from a transport position T into an operating position B. In the present embodiments, the width dimension SB of the floating body 1 in the transport position T and the width dimension TB of the support 4 are matched to the width dimension F of a roadway 5 and are smaller than this.

[0028] The floating body 1 in the form of a boat extends in the transport position T at the first, in Fig. 1, perpendicular to the support 4. The transport position T is reached by the boat 1 being rotated about a pivot axis A, by an angle R of 90° and then being moved linearly according to arrow L by a displacement path V previously calculated under static aspects, approximately to the middle of the support 4. The boat 1 is indicated by broken lines before reaching the transport position T. Not shown are the securing, fastening and storage means which ensure the transport of the boat turned on its side, the width dimension SB of which boat is far less than the width dimension F of the roadway 5 in the transport position T.

[0029] In the other embodiments it is also ensured that the width dimension SB of the floating bodies 1 is less than the width dimension F of the roadway 5 in the transport position T, as is particularly evident in Fig. 10 shown.

[0030] The second embodiment involves a trimaran, while the third and fourth embodiments involve catamarans, and feature multiple floating bodies 1. In these embodiments, pivoting components 6 are provided on the supports 4, which are movably mounted and fixable and are firmly connected to the floating body 1. In the operating position B, the pivoting components 6 serve as outriggers 6.

[0031] The second embodiment, which is shown in the Fig. 2 to 4 relates to a trimaran with three floating bodies 1, of which two floating bodies 1 are arranged in the operating position B, spaced from each other, symmetrically to the longitudinal axis C of the support 4. The third, singular floating body 1 is arranged in alignment with the longitudinal axis C of the support 4 and has a distance D from the two floating bodies 1 arranged in pairs.

[0032] The three floating bodies 1 of the Fig. 2 to 4 are attached to pivoting components / outriggers 6. The pivoting components / outriggers 6 of the two opposing floating bodies 1, which are arranged symmetrically and in the operating position B parallel to the longitudinal axis C of the carrier 4, extend perpendicularly / vertically to the top side of the carrier 4 in the transport position T. Regarding the orientation of the singular floating body 1 according to the second embodiment, the Fig. 3 and Fig. 4 two different variants of the transport position T. In Fig. 2, the singular floating body 1 extends parallel to the top of the carrier 4, in Fig. 3, the singular floating body 1 extends vertically to the top of the carrier 4.

[0033] With regard to the second, third and fourth embodiments, the carrier 4 is a component of the watercraft and that in the operating position B the floating bodies 1 there have a Fig. 7, which ensures that the chassis 2 is spaced from the water level. The chassis 2 of the carrier 4 comprises a wheel axle RA with wheels 7.

[0034] According to the Fig. 2, Fig. 5 and Fig. 9, the support 4 is designed as a frame construction with two spaced-apart longitudinal supports 8 and a plurality of spaced-apart cross supports 9, 16, wherein the areas between the longitudinal supports 8 and the cross supports 9, 16 are open and / or closed. A closed area is shown in Fig. 2 as a load-bearing surface 10 on a singular floating body 1 of a trimaran in operating position B. Another closed area is shown in Fig. 5 as a mount 11 for an outboard motor.

[0035] The longitudinal beams 8 have different sections 12, 13, 15, which are pivotable relative to each other about pivot axes G - shown in Fig. 2 - and N - shown in Fig. 5 - are rotatable, which serves to reach the different positions T, B.

[0036] According to the second, in Fig. In the embodiment shown in Figure 2, a pivoting component / outrigger 14 is provided on the second section 13 of the longitudinal beam 8, which pivots about a pivot axis H and to which the trimaran's singular floating body 1 is secured. In the operating position B, the floating body 1 is aligned symmetrically with the longitudinal axis C of the beam 4. The pivoting components / outriggers 6 of the remaining two floating bodies 1 are assigned to the first section 12 of the longitudinal beam 8 and, in the operating position B, extend largely perpendicular to the longitudinal axis C of the beam 4.

[0037] The Fig. 3 shows a first variant of the transport position T, wherein the singular floating body 1 of the trimaran assumes a parallel arrangement to the support 4 in the transport position T by pivoting the second section 13 of the longitudinal member 8 about the pivot axis G and by pivoting the pivoting component / boom 14 about the pivot axis H - in each case by 90° - and rests on the floating bodies 1 of the first section 12 of the longitudinal member 8.

[0038] The third embodiment of the watercraft according to the invention is a catamaran with six floating bodies 1, which in the operating position B in Fig. 5. A third section 15 of the longitudinal beam 8 is provided on the second section 13 of the longitudinal beam 8, which can rotate about the pivot axis G. Four of the six floating bodies 1 are arranged on pivoting components / outriggers 6, and two of the six floating bodies 1 are arranged on pivoting components / outriggers 14, which, in operating position B, extend perpendicular to the longitudinal axis C of the beam 4, largely in the plane of the latter.

[0039] The floating bodies 1 themselves extend in the operating position B parallel to the longitudinal axis C of the carrier 4 and are connected to one another almost seamlessly so that the individual floating bodies 1 form a homogeneous overall floating body in the shape of a skid.

[0040] In the Fig. 4 and Fig. 6 shows a particularly compact, different variant of the transport position T of the floating bodies 1, which have been assumed in different ways by both the second and the third embodiment of the watercraft according to the invention.

[0041] In the second embodiment according to Fig. 2 and Fig. 4, the two pivoting components / booms 6 with the singular floating body 1 are first pivoted about the pivot axis G running transversely to the longitudinal axis C of the carrier 4 in order to reach the transport position T.

[0042] The pivoting components / outriggers 6 with the singular floating body 1 are then retracted straight, without pivoting, into the second section 13 of the longitudinal beam 8, designed as a guide in the form of a U-profile, and into the free space between the sections 13 in order to reach the height level of the adjacent floating bodies 1. The width of the singular floating body 1 corresponds to the total width of the narrow sides of the adjacent paired floating bodies 1, which are simply folded up around the pivot axis I, and fits flush.

[0043] In the third embodiment according to the Fig. 5 and Fig. 6, the swivel components / booms 14 are first shifted in the direction of the arrows K and M. Here, the swivel components / booms 14 are inserted into the cross members 16 designed as a guide in the form of a U-profile, whereby the floating bodies 1 are guided through the open side of the U-profile - as in the case of Fig. 4 - are not affected. The insertion takes place up to the longitudinal axis C of the beam 4, where the cross beams 16 have hinges 17. The two floating bodies 1 approach the respective section 15 of the longitudinal beams 8 and connect to it.

[0044] Finally, the cross members 16 with the floating bodies 1 are pivoted upwards about the longitudinal axis C via the hinges 17. After that, a further pivoting process about the pivot axis N takes place between the third section 15 and the second section 13 of the longitudinal member 8. In this case, the two outer floating bodies 1 connected to the cross members 16 close according to Fig. 6 directly to the front sides of the adjacent floating bodies 1 pivoted into the transport position T in the area of the second section 13 of the longitudinal beam 8. The latter have been rotated upwards by 90° about the pivot axes I running parallel to the longitudinal axis C of the beam 4. The flush connection of the two outer floating bodies 1 adjacent to the Fig. 5 and Fig. 6 not shown connecting element 3 with the adjacent floating bodies 1 is also ensured in the third embodiment.

[0045] The connecting element 3 in the form of a drawbar is located during the operating position B in the area between the two opposite second sections 12 of the longitudinal members 8 in the second embodiment or between the two opposite third sections 15 of the longitudinal members 8 in the third embodiment and is omitted here for the sake of simplification.

[0046] The Fig. Finally, Figure 8 shows a storage position LP for an unused catamaran, with the floats 1 pivoted toward the underside of the support 4 and protectively covering the landing gear 2. Fasteners 20 in the form of brackets ensure the durability of the storage position LP.

[0047] The Fig. 9 to 11 show a fourth embodiment of the watercraft according to the invention, wherein the direction of movement BB in the operating position B in the water is offset by 90° from the direction of movement BT in the transport position T on the roadway 5. Here, hinges 17 are provided between the support 4 and the pivoting component 6, which enable the floating bodies 1 arranged on the pivoting components / outriggers 6 to be pivoted up and down.

[0048] For further features not shown in the figures, please refer to the general part of the description. Finally, it should be noted that the teaching of the invention is not limited to the exemplary embodiments discussed above. List of reference symbols 1 float 2 chassis 3 Connecting component 4 carriers 5 Roadway 6 Swivel component, boom 7 wheels of 2 8 longitudinal members 9 cross members 10 Load-bearing area 11 Recording 12 First section of 8 13 Second section of 8 guide 14 Swivel component, boom 15 Third section of 8 16 Cross member guide 17 Hinge 18 First section of 16 19 Second section of 16 20 fasteners T Transport position B Operating position SB width dimension of 1 TB width dimension of 4 A swivel axis R angle G Swivel axis (12,13) I Swivel axis (6, 12) M Arrow LP storage position BT Direction of movement Transport L Arrow V displacement path C Longitudinal axis of 4 D Distance E Immersion depth RA wheel axle H swivel axis (14, 13) N Swivel axis (15, 13) K Arrow BB Direction of movement Operation QUOTES CONTAINED IN THE DESCRIPTION

[0000] This list of documents submitted by the applicant was generated automatically and is included solely for the convenience of the reader. This list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions. Cited patent literature

[0000] OF 1 890 536 U1

[0004]

Claims

[1] Watercraft for coupling with a land vehicle, with at least one floating body (1), with a chassis (2) and with a connecting component (3) for detachable connection to the land vehicle, characterized by that the chassis (2) and the connecting component (3) are arranged on a support (4), that the floating body (1) can be moved reversibly from a transport position (T) into an operating position (B), wherein the width dimension (SB) of the floating body (1) in the transport position (T) and the width dimension (TB) of the support (4) are matched to the width dimension (F) of a roadway (5) and correspond to this or are less than this. [2] Watercraft according to claim 1, characterized by that the floating body (1) extends vertically or at an angle or parallel to the carrier (4) in the transport position (T). [3] Watercraft according to claim 1 or 2, characterized bythat the floating body (1) is rotatable about a pivot axis (A, I, H, G, N). [4] Watercraft according to one of claims 1 to 3, characterized by that several floating bodies (1) are provided which, in the operating position (B), are arranged at a distance from one another, preferably opposite and symmetrical to the longitudinal axis (C) of the carrier (4). [5] Watercraft according to claim 4, characterized by that the carrier (4) has pivoting components (6, 14) which are connected to the floating body (1). [6] Watercraft according to claim 5, characterized by that the pivoting component (6, 14) serves as a boom (6, 14) in the operating position (B). [7] Watercraft according to one of claims 4 to 6, characterized by that the support (4) is a component of the watercraft and that in the operating position (B) the floating bodies (1) have an immersion depth (E) which ensures that the undercarriage (2) is arranged above the water level. [8] Watercraft according to one of claims 4 to 7, characterized by that the support (4) comprises a frame construction with at least two spaced-apart longitudinal supports (8) and at least two spaced-apart cross supports (9, 16) and that the areas between the longitudinal and cross supports (8, 9, 16) are open and / or closed. [9] Watercraft according to claim 8, characterized by that the longitudinal members (8) of the frame construction each comprise at least two sections (12, 13, 15) and that the section (13, 15) of the longitudinal member (8) which is further spaced from the chassis (2) can be pivoted about a pivot axis (G, N) on the section (12, 13) of the longitudinal member (8) lying in front of it into the transport position (T) or into the operating position (B). [10] Watercraft according to claim 9 in the form of a trimaran with an odd number of floating bodies, characterized bythat on the second section (13) of the longitudinal beams (8) a pivoting component / boom (14) is provided which extends in the operating position (B) parallel to the longitudinal axis (C) of the beam (4) and to which a floating body (1) is fixed, in particular in alignment with the longitudinal axis (C) of the beam (4). [11] Watercraft according to claim 10, characterized by that the floating body (1) arranged on the pivoting component / boom (14) of the second section (13) of the longitudinal member (8) rests on floating bodies (1) of the first section (12) of the longitudinal member (8) in the transport position (T). [12] Vessel according to claim 8 or 9, characterized by that the second section (13) of the longitudinal member (8) or the cross members (16) of the support (4) are at least partially designed in the form of a guide, in particular as an open profile rail, for receiving the pivoting component / boom (6, 14) and the floating body (1) arranged thereon. [13] Watercraft according to claim 12, characterized by that the second section (13) of the longitudinal member (8) in the transport position (T) each accommodates the swivel component / the boom (6) in the guide. [14] Watercraft according to claim 12, characterized by that the cross members (16) in the transport position (T) each receive the pivoting component / the boom (14) in the guide and that each cross member (16) comprises a hinge (17), whereby the cross member (16) forms two pivotable sections (18, 19) and wherein the pivot axis formed by the hinge (17) preferably coincides with the longitudinal axis (C) of the support (4). [15] Watercraft according to one of claims 12 to 14, characterized bythat the floating bodies (1) arranged on the pivoting component / arm (6) of the second section (13) of the longitudinal member (8) or the floating bodies (1) arranged on the pivoting component / arm (14) of the third section (15) of the longitudinal member (8) rest, preferably flush, on the floating bodies (1) of the first section (12) or the second section (13) of the longitudinal member (8) in the transport position (T). [16] Watercraft according to one of claims 4 to 15, characterized by that the floating bodies (1), which in the operating position (B) extend parallel to the longitudinal axis (C) of the carrier (4), adjoin one another without gaps, so that a homogeneous overall floating body, in particular in the form of a runner, is formed from the individual floating bodies (1).

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