WO2010060161A2

WO2010060161A2 - Aquatic vehicle

Info

Publication number: WO2010060161A2
Application number: PCT/BR2008/000331
Authority: WO
Inventors: Mateus Frois Santa Catarina
Original assignee: Mateus Frois Santa Catarina
Priority date: 2008-11-03
Filing date: 2008-11-03
Publication date: 2010-06-03
Also published as: WO2010060161A3

Abstract

The present invention refers to a motor propelled aquatic vehicle for leisure basically comprising tubular structures connected to inflatable parts in order to provide a configuration similar to a motorcycle, in which the vehicle has a pair of inflatable floating means (1 ), positioned in a catamaran like configuration and an inflatable seat (2). The vehicle has a propulsive set (26) in a rear position having also a tail (27) which is similar to conventional outboard motors. The tail (27) has in its body a first chain gear (30) mechanically connected by means of chains (53), cables (54) and pulleys (44) to the second chain gear (14) in cooperation with the handlebar (19), permitting an easy drive condition, similar to motorcycles. In one alternative embodiment, the vehicle of the present invention can be provided to receive outboard motors (electric or combustion engines) available in the market, witch can be easily fixed to a support (106). The present invention also shows a tubular frame which is compact and light weighted, the parts can be easily assembled and disassembled for an easy transportation and storage and then the aquatic vehicle of the present invention has also a portable feature.

Description

"AQUATIC VEHICLE". BACKGROUND OF THE INVENTION

The present invention refers to an aquatic vehicle catamaran like which is able to receive a boat motor (electric or combustion engine), basically comprising tubular frames associated to inflatable means in order to provide a configuration similar to a motorcycle and showing detachable parts for an easy transportation and storage.

Motorized leisure vehicles, the most know is named jet skis. These vehicles have a single hull and a water propulsive jet. Jet skis are largely employed in water sports and for leisure. Jet skis are provided with potent engine (power ranging above 100HP). These engines are responsible for an elevated final cost as well as a high maintenance cost.

Besides, jet skis have a transport and storage limitation due to high weight and shape. Jet skis are very popular due to excellent speed and driving features which are associated to a simple steering system which does not require complex skills for driving.

Inflatable boats are also largely employed. Most popular inflatable boats have U shape in which a rigid deck is provided in the main part of the boat and in the rear part of the boat a reinforced wall is provided to receive an outboard motor. One problem of this configuration, particularly when the boat has a small scale (a boat for up to four persons) is the lack of hydrodynamic efficiency. Such boats have a big width when compared to the length (to provide more stability and a bigger deck area), this feature causes a huge wave drag. The central deck has a big wet area causing a big friction drag. Therefore, the total drag of such boat is relatively high, limiting the final speed and requiring more potent motors. Another problem is that the pilot is forced to drive the outboards motor by means of a handle shaft so that the pilot is forced to be positioned at the side of the handle and guide the boat looking ahead which is not a comfortable position. Such inflatable boats are usually associated to a rigid deck, so the procedure of draw the air off the inflatable parts does not reduce in a significant extent the total size of the boat when considering transport and storage issues. In order to minimize two of the above U-shaped inflatable boat problems (enhance hydrodynamics efficiency and assembling features to reduce transport and storage sizing) one can employ a combination of tubular structures which are able to be assembled and/or disassembled in association to a pair of floating hulls provided in a catamaran like configuration.

This solution has been adopted in many patented teachings such as, for example, US 4136414; GB 2024112 A; and EP 0436480 A1. All the above cited patent documents reveal similar features like a big flat deck area, with no seat for the pilot or passengers. Some documents make mention to a reinforced central region which is able to receive an outboards engine were the pilot is forced to drive the boat by means a handle shaft driving means being positioned at the side of the handle shaft and having to look ahead. The identified problem in such patent documents is that in all the above patented configurations no comfortable seat means are provided for the pilot and passengers.

Therefore, all aquatic vehicles for leisure of the art have one or more of the following problems: (a) high cost of production (and consequently a high final cost); (b) a high operational cost; (c) high maintenance cost; (d) difficulty of transportation and storage; and (e) difficulty of operation.

The present invention aims to minimize the entire above problem. The present invention provides one configuration which is similar to a motorcycle to permit an ergonomic and comfortable driver position. A pair of inflatable hulls parallel positioned but separated between thems (catamaran like configuration) provides a good stability in all operation conditions, not requiring balance effort from the drive as in a motorcycle.

In relation to the propulsive system, it can be as below: a) Boat motor (electric or combustion engine) being integrated to the boat; and b) Boat motor (electric or combustion engine) detachable relative to the boat. In the first embodiment (a), the vehicle is propelled by means of a propeller positioned at the tail part similar to a conventional outboard motor. The tail has a gear (chain gear) connected only by means of chains, cables and pulleys to another gear in the other edge of the handlebar axis. Therefore, when the handlebar is twisted, the tail is simultaneously twisted permitting a good steering condition for the vehicle. This method provides an effective and simple steering system in a motorcycle configuration. The motor- propulsive set permits a rear biasing when its lower part reaches a submerse object, reducing damages.

In the second embodiment (b) the vehicle shows an outboard motor support. Such support is hinged in relation to the vertical axis, in whose edge is provided a gear (chain gear) mechanically connected by means of chains, cables and pulleys to another gear positioned at the edge of the handlebar axis. Therefore, when the handlebar is twisted, the engine support is also twisted in order to permit a good steering condition for the vehicle. This method provides an effective and simple steering system in a motorcycle configuration. The advantage of such system is that outboard motors freely available in the marked can be employed, which are easily connected to the support.

The present invention also has a tubular frame which is compact and light weighted, its parts can be easily assembled and disassembled for transport and storage purposes. Therefore, the transportation can be done in mostly kinds of cars, being trucks and towing unnecessary as in jet-ski case.

In view of the light weight of its components, the aquatic vehicle can be transported by any adult person with no hard effort. Such features make the vehicle of the present invention portable, being different from jet-ski case which has problems related to transportation and storage. Jet skis (more common aquatic vehicles for leisure ) require a tow truck for transportation and when stored, jet skis have a high volume occupation needed. Therefore, customers who do not wish to have transportation problema and/or do not have home storage availability simply do not buy jet skis even having financial conditions to do it. People in big cities live in apartments, therefore transport and storage abilities are remarkable trends of a good sales product. The present invention aims to reach such customer needs by providing an aquatic sport and leisure product which is easy to transport and to store having a low final, operational and maintenance costs. Tiny scale models for children can be also provided.

The features of the present invention meet all the above mentioned needed solutions, therefore the potential market of the present invention is high and the invention can be directed for aquatic sports or leisure. The present invention can also be employed for lifeguard service in beaches, as jet skis are presently employed. DESCRIPTION OF DRAWINGS

The preferred configurations of the present invention are now described in an exemplifying fashion, wherein the figures below are:

Fig. 1 illustrates a perspective view of a vehicle according to the present invention;

Fig. 2 illustrates a front view of a vehicle according to the present invention;

Fig. 3 illustrates a set of mounting steps of the inflatable seat front edge of a vehicle according to the present invention; Fig. 4 illustrates a set of mounting steps of the inflatable seat central part of a vehicle according to the present invention;

Fig. 5 illustrates an exploded perspective view showing a mounting sequence of a vehicle steering according to the present invention ; Fig 6 illustrates a cut view of a steering tube of a vehicle according to the present invention; Fig. 7 illustrates a perspective view showing a motor acceleration system according to the present invention vehicle;

Fig. 8 illustrates a perspective view of a propulsive set according to the present invention; Fig. 9 illustrates mounting steps of a propulsive set according to the present invention;

Fig. 10 illustrates an exploded perspective view showing a propulsive set mounting in a vehicle frame according to the present invention; Fig 11 illustrates a perspective view of a propulsive mount according to the present invention;

Fig. 12 illustrates a steering system mounting steps according to the present invention;

Fig. 13 illustrates a perspective view showing an opening method of a cable and chain set of a vehicle according to the present invention;

Fig. 14 illustrates a cable insulating system of a vehicle according to the present invention;

Fig. 15 illustrates a system which permits the propulsive set rotation of a vehicle according to the present invention;

Fig. 16 illustrates a normal operation condition of a vehicle according to the present invention;

Fig. 17 illustrates an impact condition of the tail in a vehicle according to the present invention against a submerse object; Fig. 18 illustrates fixing method steps of inflatable floating means of a vehicle according to the present invention on its respective supports;

Fig. 19 illustrates a perspective view showing a fixing method of floating means supports on the tubular frame of a vehicle according to the present invention;

Fig. 20 illustrates steps of bushing engagement on the floating means supports of a vehicle according to the present invention; Fig. 21 illustrates a perspective exploded view showing the bushing engagement on the tubular frame of a vehicle according to the present invention;

Fig. 22 illustrates a connection bar mounting sequence at the tubular frame according to the present invention;

Fig. 23 illustrates connection bars mounting steps at the floating means supports of a vehicle according to the present invention;

Fig. 24 illustrates mounting steps of engagement support parts of a vehicle according to the present invention; Fig. 25 illustrates the engagement procedure of the engagement supports of a vehicle according to the present invention;

Fig. 26 illustrates a side view of a vehicle according to the present invention showing a pilot and hitchhiking person;

Fig. 27 illustrates an upper view of a vehicle of the present invention turning on right;

Fig. 28 illustrates an upper view of a vehicle of the present invention turning on left;

Fig. 29 illustrates a transportation way of a vehicle according to the present invention in an automobile; Fig. 30 illustrates a perspective view of a vehicle according to the present invention having a support for outboard motor (electric or combustion engine);

Fig. 31 illustrates a perspective exploded view showing mounting details of an outboard motor (electric or combustion engine) support of a vehicle according to the present invention; and

Fig. 32 illustrates a perspective view showing details of mechanical connection between the outboard motor (electric or combustion engine) support and the handlebar of a vehicle according to the present invention. DESCRIPTION OF THE PREFERRED EMBODIMENT

According to Fig. 1 , the present invention comprises a pair of inflatable floating means (1) which are identical and, therefore interchangeable; an inflatable seat (2) aligned to and positioned above the pair of inflatable floating means (1), such as in Fig. 2 frontal view, the pair of inflatable floating means (1) and the inflatable seat (2) are positioned in the space as in isosceles triangle corners wherein in the inner part a combustion motor (3) is positioned. Therefore, when the vehicle is put upside down, the combustion motor (3) is always above the water surface, avoiding water contact. The combustion motor (3) is designed in order to indicate the preferred position, and such motor (3) does not indicate a specific model. It is important to be noticed that the vehicle can be provided for electric motor operation which must be positioned, preferably at the propeller axis (25). In this case, the position where the combustion motor (3) would be positioned, a battery could be provided.

The inflatable seat (2) is fixed at the tubular frame (4) at three points. First fixing point is represented in Fig. 3, showing the frontal edge of the inflatable seat (2) reinforced by metallic sheets (5), which have double function: to seal the edge of the inflatable seat (2) and simultaneously act as fixing point. The pair of metallic sheets (5) is fixed by rivets (6) in such manner that the fabric of the seat (2) edge is pressed and forms a core of sandwich structure. The reinforced edge of the inflatable seat (2) is fixed by means of nuts and screws (7) at the fixing projections (8) present at the tubular frame (4). After this step is finished, the second and third points fixing must be completed as shown in Fig. 4. The fixing procedure comprises connecting buckles (9) at hooks (10) in the tubular frame (4). This operation must be performed when the seat (2) is partially inflated. After this operation is completed, the inflatable seat (2) must be totally inflated by means of a valve

(11) permitting that belts (12) are kept extended, ensuring the fixing. For inflatable seat (2) removal one must proceed the contrary operation, firstly deflating the inflatable seat (2) by means of a valve (11) at a point where belts

(12) are loosen permitting that buckles (9) are removed from hooks (10). It is important to notice that the fixing mechanism of the inflatable seat (2), which cut sectional view is shown in Fig. 4, has been provided for ensure that forces Ff from the buckles (9) and being applied over the belts (12) be oriented in tangential directions in relation to the inflatable seat (2) at the contact points between buckles (9) and belts (12). This condition is important for not permit belts detachment which is favored by radial forces, unexisting in this case. Belts (12) are made of nautical fabric, the same fabric employed in the inflatable seat (2). Belts (12) are glued or welded at the external part of the inflatable seat (2).

Referring to the Fig.5, the present invention shows a pivoting tube (13), which basically consists of a metallic tube incorporating a first chain gear (14) at its lower end. For assembling the pivoting tube (13) in the tubular frame (4), a plastic bushing (15) must be firstly inserted at the upper part of pivoting tube until the contact with the first chain gear (14) occurs (forming a retention means). Then, the pivoting tube (13) is inserted by means of an orifice (16) up to the point where the plastic bushing (15) is engaged in the orifice housing (17) present in the tubular frame (4) as in Fig. 6. At the same time, the upper edge of the pivoting tube (13) which operates synergistically in relation to the handlebar (19). This mechanism is known in the art and it is largely employed in bicycles.

According to Fig. 7, in one of the handlebar (19) arms is provided an acceleration lever (23) which drives the combustion engine (3) acceleration system by means of a transmission cable and conduit (24). The combustion motor (3) must have a centrifugal clutch system (not shown) coupled to the motor in order to permit that transmission to the propeller only occurs when the combustion engine (3) is accelerated, and the propeller (25) is kept under static conditions when the combustion engine (3) stage is a low speed stage. Fig. 8 shows a propulsive set (26), which is assembled at the rear part of the tubular frame (4). The propulsive set (26) is basically made of a combustion engine (3), tail (27) and a mount (28). The tail (27) has two bearing supports (29) integrated to the tube of the propulsive set, between which is provided a second chain gear (30) being also integrated to the tail (27) tube.

The tail (27) is assembled in the mount (28) by means of bifurcated bearings (31) which are mounted in the bearing supports (29). For perform this assembling, as in Fig. 9, firstly the plastic rings must be positioned (32) at the bearing supports (29) due to the fact of the plastic rings (32) has a section (33) which permits the rings be opened.

Then the bifurcated bearings (31) are mounted in the bearing supports (29) by means of screws (34), analogously to knuckle assembling in crank gear systems of combustion motors. Bearing supports (29) has stoppers (35) for not permit axial displacement of bifurcated bearings (31). Bifurcated bearings (31) has free twist movement around the geometric axis of the tail (27) tube, sliding over the plastic rings (32) having the function of not permit metal-metal contact, reducing friction and corrosion. One of the sides of bifurcated bearing (31) has two passageway holes (36) which serves to mount (28) fixing. Therefore, the mount (28) can be fixed to the bifurcated bearings (31) by means of screws and nuts (37). At this time, the propulsive set (26) is assembled. The tail (27) has free twist around the geometric axis of its tube. The propulsive set (26) is assembled in the projections (38) which are present in the tubular frame (4). In order to complete this mounting, the propulsive set (26) firstly is positioned as in Fig. 10. Then two plastic spacers (39) are positioned. After this, support cylinders (40) are provided which are provided to support all compressive force caused by screw (41) and nuts (42) fixing and permitting that the propulsive set (26) be free to rotate, being limited only by the stopper (43) present in the tubular frame (4). It is important to notice that four support points of the mount (28) - two of them fixed at the bifurcated bearings (31) e two others fixed in the projections (38) - are positioned in the space as in tetrahedron corners, geometric figure having four triangular faces. This configuration combines simplicity and maximum hardness of the propulsive set (26). Figure 11 shows mount (28) details.

As in Fig. 12, the tail (27) is connected to the handlebar (19) by means of a set of cables and chains. This set connects the first chain gear (14), present at the pivoting tube edge, to the second chain gear (30) present in tail tube (27). This steering system includes a pair of plastic pulleys (44) working as a stretcher. Plastic pulleys (44) are mounted in the supports (45) present in the lower frontal part of tubular frame (4). Therefore, plastic pulleys (44) are inserted in the axis (46), where the pulleys are free to rotate, one independently to the other. The axis (46) can then be inserted in the slots (47) present in the supports (45), Then washers (48) can be inserted in each side of the axis threaded parts (46) after then nuts (49) insertion. The axis (46) has supporting walls (50) forming stoppers in relation the side parts of the supports (45). Thus, plastic pulleys (44) are free to rotate independently of the nut (49) setting.

The steering system assembling, the set of cables and chains must be opened. It can be done removing pins (51) as in Fig. 13. Therefore, the terminal (52) can be temporarily disconnected to the chain (53). When opened, the set of cables and chains can be assembled as described below. One of the chains (53) must be connected to the second chain gear (30). After then, cables (54) must be positioned in a cross linked fashion at the lower part of the tubular frame (4), passing through the plastic pulleys (44) grooves. Further, another chain (53) must be connected to the first chain gear (14), At this point, the pin (51) can be inserted by connecting the terminal (52) to the chain (53) once more. Thus, the set of cables and chains can be extended. In order to do this, nuts (49) must be loosen for permit that the axis (46) be displaced alongside the axis (47) in such a manner that the chain set is extended. When extended, nuts (49) must be threaded for not permit that the axis (46) be displaced alongside the groove (47), keeping cables and chains always extended.

Since cables (54) are cross linked at the lower part of the tubular frame (4), this condition forces constant reciprocal friction, resulting in a premature erosion and failure condition. To avoid this situation, in the cable cross linking region there is a sheet (55) attached to the frame (4) in which spacers (56) are provided for cable (54) insulation not permitting reciprocal friction. Spacers (56) are mounted as in Fig. 14. Firstly, a pair of washers (57), followed by the first spacer (56) which must be between the cables (54). Then, a second pair of washers (57) followed by another spacer (56). At this point, two pairs of washers (57) and two spacers (56) can be provided by means of screws (58) and nuts (59). In order to permit that the propulsive set (26) rotate around the axis of the withdraw axis (60) without causing stretching or loosening in the chain and cables set, the system has been provided in order to make cables (54) through exactly over the withdraw axis (60), as in Fig. 15. Therefore, if cables (54) are restricted exactly over the withdraw axis (60), the propulsive set (26) can rotate around the withdraw axis (60) in order to not cause stretching or loosening of the cable and chain set. Therefore, plastic supports (61) are provided in order to restrict cable (54) vertical movement. Plastic support (61) are fixed at sheets (62) present at the tubular frame (4) by means of screws (63) and nuts (64).

As in Fig, 16 and considering the counter-clockwise sense as positive sense, when in normal operation condition, the propeller (25) generates a Fh force over the propulsive set (26) producing a positive momentum in relation to the withdraw axis (60). This momentum makes the stopper (43) to produce a negative momentum canceling the sum of total momentum in relation to the withdraw axis (60). Therefore, the propulsive set is kept in its normal operation position.

At the end of the tail (27) there is a protection plate (65) for propeller (25) protection from water body bottom (66) collision, which is employed in practically all conventional outboard motors. As in Fig. 17 and considering the counter-clockwise sense as a positive sense, when the tail (27) collides against a submersed object (67), the collision causes an impact force Fi which produces a negative momentum in relation to the withdraw axis (60). In the case of such negative momentum has an intensity bigger than the momentum intensity produced by propeller (25) force Fh, the sum of all momentum around the withdraw axis (60) is negative and the propulsive set (26) rotates freely around the withdraw axis (60). It avoids a sudden vehicle braking which could be harmful to the pilot and cause serious damage to the equipment. In the present invention there are two floating means supports (68), one for each inflatable floating means (1), in which the supports (68) are identical and, therefore, interchangeable. Inflatable floating means (1) are fixed in the floating means supports (68) as suggested in Fig. 18. The fixing procedure comprises buckle (69) engagement at the hooks (70) present in such supports (68), as also suggested in Fig. 18. This operation must be completed when the inflatable floating means (1) are partially inflated. After this operation, the inflatable floating means must be totally inflated by means of their respective valves (71) leading the belts (72) be extended due to floating means extension. For the inflatable floating means (1) removal, one shall proceed the contrary operation, firstly partially deflating the inflatable floating means (1) by means of their valves (71) up to the belts (72) be loosen in order to permit that buckles (69) and hooks (70) be detached. It is to be noticed that the fixing mechanism of the inflatable floating means (1) which cut sectional view is shown in Fig. 18, has been provided in order to ensure that forces Ff from the buckles (69) in the belts (72) be oriented at tangential directions in relation to the sectional plane of the inflatable floating means (1) at the contact points of the buckles (69) and the belts (72). This condition is important for not permit belts detachment which is favored by radial forces, unexisting in this case. Belts

(72) are made of nautical fabric, the same material employed in inflatable floating means (1). Belts (72) are glued our welded at their external part of inflatable floating means (1). Floating means supports (68) are connected to the tubular frame (4) by means of two connection bars (73), as in Fig. 19. Connection bars (73) comprise tubes having holes for locking. Connection bars

(73) are positioned such their central part is positioned at the inner part of the tubes (74) of the tubular frame (4) and their ends inside the tubes (75) of the inflatable floating means supports (68). According to Fig. 20, tubes (75) receive plastic bushings (76) at their ends to improve the engagement and not permit metal-metal contact, eliminating noises during the operation. Plastic bushings

(76) have a projection (77) for engage in holes (78) present in tubes (75). This projection has a cylindrical shape which is cut by a biased plane (79). When the plastic bushing (76) is inserted, the biased plane (79) produces a deforming force in order to permit the plastic bushing (76) be inserted. When the projection

(77) reaches the hole (78) of the tube (75), the plastic bushing (76) takes its original shape at the same time that the projection (77) is inserted in the hole (78) locking the plastic bushing (76) in its position. Tubes (74) of the tubular frame (4) have the same inner and an outer diameter of the tubes (75) of the floating means support (68). Therefore, as in Figure 21, plastic bushings (76) are also employed at the ends of the tubes (74), which have holes (80) for bushing locking.

The engagement procedure of the plastic bushings

(76) at the edge of the tubes (74) is the same employed in tubes (75). In its superior central position of the tubes (74) locking means (81) are provided for keeping the connection bar (73) in its position. The locking means (81) is a known technique being made of a locking body (82) (integrated to the tubular frame (4)), a locking pin (83), compressive coil (84), a six edges cap (85) and driving ring (86). As in Fig. 22, the compressive coil (84) tends to keep the locking pin (83) constantly in its locking position. For connection bar (73) assembling at the tubular frame (4), one end of the connection bar (73) is inserted in the plastic bushing (76) orifice as in Fig. 22. The connection bar must be a pin (83) stopper which must be pulled by the driving ring (86) for permit that the connection bar (73) be continuously inserted. The connection bar (73) is inserted up to the moment when the locking pin (83) is engaged in the orifice present in the central position of the connection bar (73), which must occur automatically since the compressive coil (84) will push it to the engagement.

At the side central position of the tubes (75) locking means (87) are provided for keep connection bars (73) in their positions. The locking means (87) is a known technique being made of a locking means body (88) (integrated to the tube (75)), a locking means pin (89), a compressive coil (90), a six edge cap (91) and a driving ring (92). As in Fig. 23, the compressive coil (90) tends to keep the pin (89) constantly in the locking position. Locking means (87) are assembled at the tube sides (75) because people can use this region as a step when come in or come out the vehicle. Therefore, being the locks (87) assembled at the tube (75) sides, they are protected. For assembling connection bars (73) at the floating means support (68), their edges are inserted in the plastic bushing holes (76) as in Fig. 23. They also act as a stopper for locking means pins (89) which must be pulled by the driving rings (92) for permit that the connection bars (73) be continuously inserted. The connection bars (73) are inserted up to the engagement pin (89) be engaged at the holes (93) present at the connection bars (73), which must occur automatically since compressive coils (90) will push them to the engagement.

Engagement supports (94) serve to support the pilot feet (95) and the hitchhiking person foot (96). They are formed by a metal structure (97) having a U shape. At the metal structure edge (97) plastic engagements (98) are provided for connection bar engagement (73). For plastic engagement (98) assembling, firstly the engagement (98) receives a locking means (99) which must be positioned as in Fig. 24. After this, the plastic engagement (98) is fixed at the metal structure (97) end by means of screws (100) and nuts (101). The procedure for fixing the engagement support (94) at the connection bars (73) comprise positioning the engagement (94) as in Fig. 25, such as the locking means (99) be aligned to the orifice (102) present at the connection bars (73). After this, each end of the engagement support (94) must be pressed by means of a force Fe which can be done by a foot compression over their ends. The Fe force will make the plastic engagement (98) be temporarily deformed and then be engaged in the connection bar (73). The locking means (99) will engage in the orifice (102) present in the connection bar (73) not permitting that the engagement support (94) be laterally displaced. The present invention is made for transporting a pilot and hitchhiking person as in Figure 26, performing a leg holding and positioning feet on the engagement supports (94). The pilot (95) holds the handles (103) at the end of the handlebar (19). This pilot position (95) is identical to the conventional motorcycle position, fitted to different persons. Inflatable floating means (1) positioned in a catamaran like configuration provide stability in all operation conditions. In a combustion motor (3) version, the pilot (95) can drive the acceleration lever (23), increasing combustion motor (3) rotation and starting the propeller (25). The propeller (25) will provide a Fh force over the vehicle, accelerating it. The present invention has great driving ability by means of a steering system which is easy to operate and no special skills are required from the pilot (95). The pilot (95) drives by means of a handlebar (19) which is linked to the tail (27). When the pilot turns the handlebar on right, the vehicle then turns right as in Fig. 27. Analogously, the same is done when the pilot (95) turns the handlebar (19) to the left as in Fig. 28.

The present invention can be transported by almost all common street automobiles . Figure 29 illustrates the transportation way the present invention at the automobile roof (104) by means of a tie straps (105) commonly sold in the market. Due to the low weight of the present invention and the inflatable floating means (1) which provide a great contact area with the car roof (104) and also providing a good pressure distribution, the transportation way is safe not offering risks of car damage (104). It is important to notice that the present described transportation method is only a suggested way selected from many other transportation ways.

Instead of using an outboard motor (electric or combustion motor) incorporated, a vehicle having the support (106), as in Fig. 30 can be provided. Therefore, different conventional outboard motors (electric or combustion motors) found in the market can be fixed to the support (106). The support (106) has in its lower end an axis which is mounted in the bearing (108) in order to freely rotate around its axis, as in Fig. 31. At the axis end (107) there is a third chain gear (109) which works synergistically to the support (106). The chain gear (109) is then mechanically connected, by means of chains, cables, and pulleys to the first chain gear (14) which works synergistically to the handlebar (19), as in Fig. 32. Therefore, when the handlebar (19) is turn the support (106) is simultaneously turned, in order to permit the driving ability of the vehicle. The outboard motor (electric or combustion motor) fixed at the support (106) must synergistically twist in relation to the support (106) for permit the driving ability by means of the handlebar (19).

The above described invention has practical and simple ways to be put in practice the revealed invention scope. Some mechanism variations presently described having the same function presently shown must be seen as included in the scope of the present invention.

Claims

CLAIMS:

1- Aquatic vehicle comprising a tubular frame (4) and: Pivoting tube (13) connected to the tubular frame (4) and provided in a frontal position in which its lower end has a first movement transfer mechanical device (14) and a handlebar (19) in its upper end;

A rear positioned propulsive set (26) provided in the tubular frame (4) having a tail (27) which is able to pivot in relation to its axis and being downward vertically extended, in the lower end of the tail a propeller (25) is provided and the tail (27) has a second movement transfer mechanic device (30) which is mechanically connected to the first movement transfer mechanical device (14) in the pivoting tube (13);

A seat (2) having an elongated shape, the seat (2) is able to float and being provided in the tubular frame (4) and aligned to the longitudinal axis of the vehicle; and

Connection bars (73) for connect the tubular frame (4) to a pair of floating means (1), the floating means (1) has an elongated shape and being positioned in a such manner that each floating means is reciprocally parallel positioned and aligned to the longitudinal axis of the vehicle in order to provide a catamaran like configuration.

2 - Aquatic vehicle comprising a tubular and supported principal frame (110) which is connected to:

Pivoting tube (13) connected to the tubular frame (4) and provided in a frontal position in which its lower end has a first movement transfer mechanical device (14) and a handlebar (19) in its upper end;

An outboard motor support (106), mounted in the principal frame (110) in a rear position, being able to rotate around the axis (107) in a synergistic relation with the third movement transfer mechanical device (109) which is mechanically connected to the first movement transfer mechanical device (14) in the pivot tube (13); A seat (2) having an elongated shape being able to float, the seat is fixed to the principal frame (110) and aligned to the longitudinal axis of the vehicle; and

3 - Aquatic vehicle, according to claim 1 , wherein the propulsive set (26) is able to rotate backwardly in relation to the withdraw axis

(60).

4 - Aquatic vehicle, according to anyone of the preceding claims wherein feet supports (94) are fixed in the frame (4,110).

5 - Aquatic vehicle, according to anyone of claims 1 , 2 or 3, wherein the feet supports (94) comprise quick engagement mechanism (98) which is connected to the connection bars (73).

6 - Aquatic vehicle, according to anyone of the preceding claims wherein the seat (2) and the floating means (1) are inflatable and the inflatable floating means (1) are connected to the floating supports (68) which are connected to the ends of the connection bars (73).

7 - Aquatic vehicle, according to claim 6, wherein the inflatable floating means (1) has belt means (72) attached in the external part of the inflatable floating means (1) and the belt means (72) having buckles (69) which are connected to hooks (70) provided in the floating supports (68), in such a manner to avoid radial forces from the buckles (69) to the belt (72) and also this same technique may be used to fix the inflatable seat (2) at the frame (4,110).