DE2723765A1 - Inflatable boat with circular section side tubes - has flat sides at bow and stern tapering to points, and deck with cockpit opening formed by reinforcing members - Google Patents

Abstract

The inflatable boat has pointed bow and stern sections formed by transition of the circular section side tubes into flat vertical walls meeting at a point. The boat has an inflatable bottom and a deck with reinforcing tubes forming a cockpit opening. The side tubes (2) are tapered into flat vertical bow and stern sections (5, 6) meeting at stems (11, 12). The inflatable deck (16) has a central reinforcing tube (14) branching to form the edge (15) of the cockpit opening.

Description

Inflatable boat

The invention relates to an inherently stable when inflated inflatable boat made of two carrying tubes converged to a point at the bow and stern, which include an inflatable floor between them on the underside and on the top are spanned by an inflatable spray deck in which at least one seat opening is recessed.

From the Dt-Gbm 7423361 is an inflatable boat hull, in particular an inflatable kayak, known. The lateral support tubes are tapered with Bag-shaped ends assembled, which are connected to the tapering bow and stern are. Only relatively small hulls can be created in this construction, which have sufficient stability in the bow and stern area. Would this Principle applied to larger boats, it could provide the necessary stability at the bow and stern can only be achieved by additional, complex stiffening elements. In addition, the bow and stern of the known boat are so deep that the spray deck is washed over by the water when there is a swell.

This is why this hull can only be fitted with a spray apron be used, which is guided on the one hand around the middle of the body of the boat occupant and on the other hand is clamped over the edge of the seat opening, so that the Running water cannot get inside the boat.

So-called folding boats are also known, the hulls of which has a greater dimension and a greater freeboard height and thus a run-in Avoid getting the water inside the boat. However, these boats are only available with the aid a frame-like stiffening structure can be used, which is complex in terms of production technology and is expensive and awkward to transport when folded. That Assembling and dismantling these folding boats, which for safety reasons also take place with the interior considerably restricting capsizing protection hoses and tension hoses is time consuming and complicated.

The invention is based on the object of an inherently stable, inflatable To create a boat of the type mentioned that can be used as a Foldable boat and still conveyed all the advantages of an inflatable boat hull. In particular, the hull to be created should be made ready to sail quickly and easily need a small pack size when not ready to drive and light be transportable.

The object is achieved according to the invention in that the round made-up Support tubes at the bow and / or at the stern through at least two each in the end area The longitudinal grooves used in the support tubes are constricted in cross-section and flattened out on edge are deformed, forming an approximately perpendicular and rectilinear shape a pointed stem are connected and that the spray deck at least an inflatable central strut connecting the stem tips in the longitudinal direction of the boat has, which is divided in the area of the seat opening and as a closed and open Frame attached to the support tubes includes the seat opening.

The flattened areas in the bow and stern areas work together with the inflatable floor and the spray deck with its stiffening strut very stable bow and stern, with the bow and stern tip in the water so far is above water level so that the bow does not undercut the water surface. The flattened areas are much more solid than tapered tubes. They form in cooperation with the central strut, the stiff stem and the floor a static bond that gives a strength close to that of a rigid one Folding boat is enough. Because all the individual elements brought together in the bow and stern of the boat hull are inflatable, the predetermined by the assembly Inflation tension can be used for stiffening. The flattening in rectilinear Steven are brought together, result in a very sleek, shapely and the driving characteristics unexpectedly reforming stern and bow that interact with the inflatable Riefenboden, especially determine the straight line of the boat in the water. To the A control device of the usual type can be attached to the rear stern, which is there good due to the favorable flow along the hoses and the flattened areas comes into effect.

A visually sleek bow and stern shape with great stability and A boat according to the invention receives an appropriate underwater line when the longitudinal grooves designed as -in the groove width decreasing towards the stem, wedge grooves are.

Such wedge grooves force the one that tends to have a bulbous cross-section Carrying tube in its end area into a flattened shape whose Strength decreases evenly towards the bow and stern. That way lets create a blade-like end of the boat.

With such a bow design, the hull is able to the water can be divided very easily and therefore requires little effort Allow moving. The driving characteristics, especially the straight-line stability even with rough water, as in a further exemplary embodiment, one according to the invention can be used Boat hull is intended to be improved if the flattening are connected to each other in the V position with the formation of a keel attachment.

The keel approaches then lead into the bottom of the boat in the middle of the boat above. Even so, they are surprising in their effect on driving behavior can be explained by the fact that a guide only acts in the bow and stern area can have almost exactly the same effect as a keel running over the entire length of the boat. Especially when driving when a paddle blade of the double paddle is used the hull has the tendency in response to the initiated moment of motion dodging with the bow in the opposite direction.

Just as the paddle pressure comes into play with a lever arm, the bow and stern keel extensions act with at least the same size, if not even larger lever arm against the turning away movement. This training one Keel attachment without additional stiffening or shaping elements is for the Subject matter of the invention of considerable importance.

Another preferred embodiment of a boat hull according to the invention provides that the longitudinal grooves are arranged approximately parallel to one another and at an angle run up towards the stave tip.

Inclined longitudinal grooves improve the torsional rigidity of the Flattening and also form water channels on the outer contour in the bow and stern area, so to speak as a wave deflector and for better pushing aside of the water to be divided act. In addition, when driving fast through the diagonally downward longitudinal grooves and the resulting ridges the water pushed downwards, resulting in a force lifting the bow out of the water generated.

In a further embodiment of the boat according to the invention it is provided that the frame - based on the seat opening - is rounded towards the rear Back support and forward is shaped in a pointed indentation.

This shape of the frame increases in cooperation with the longitudinal Strive for the rigidity of the spray deck and give it a visually pleasing one Shape.

In addition, the rear part of the frame can be used as a back support use for an occupant while through the indented, front area the seat opening is provided with good access to the storage space in the boat's bow area. the The bulged shape of the frame in the front part of the boat also affects the spray deck flooding water as a wave deflector, so that the interior of the boat largely from the incoming Water is kept free.

The rigidity of the spray deck and the inflation tension that contributes to the stabilization of the entire hull, will still improved if, as proposed in a further embodiment, to both Sides of the strut inflatable ribs, preferably parallel to the strut, in the spray deck are arranged.

With regard to a visually closed impression of the spray deck and also around the water that floods the spray deck from the bow reliably to the side To be able to deduce, it is important that the strut and the frame -in a side view of the hull seen - the ribs protrude.

In a further preferred embodiment of the invention Boat hull is provided that the connection area of the frame with the Carrying tubes at their zenith line or - seen from the inside of the boat - slightly offset to the outside.

This determines the freeboard height, which is determined by the diameter of the support hoses would be limited per se, increased by the height of the spray deck or the frame. The attachment in the zenith area or slightly outside this zenith area ensures that the boat user can submerge his double paddle unhindered in the water can without being hindered in its freedom of movement by the frame.

According to a further idea of the invention it is important that the strut, starting from the frame, gently sloping towards the stave tips. Through this any water reaching the spray deck is quickly drained to the rear or front and also a very elegant boat contour, from every viewing direction, achieved.

In addition, this measure takes into account the requirement that the interior, and in particular the knee height in the bow area is sufficient for comfortable sitting.

The serviceability of such a boat hull is after a further ideas of the invention thereby improved in a universal manner that in Rear area on the flattened areas and / or the spray deck fittings for fixing of control and / or drive organs are provided.

With the help of these fittings, the boat with a usual, for example be equipped with foot pedal operated Buderblatt, so that even in very restless Water is given excellent maneuverability.

At the same time, the hull can with little effort and with motorize in a few simple steps.

The modern safety regulations that apply nowadays to an inflatable boat can be taken into account that each hose, the floor and parts of the spray deck form independently inflatable units. in the In the event of damage to the hull, the hull will become unfit to drive reduced, but not eliminated.

The invention is explained in more detail below with reference to the drawing.

1 shows a plan view of a boat according to the invention. 2 shows a longitudinal center section through the boat according to FIG. 1, wherein in the bow area the Section is interrupted, and Fig. 3 is a cross section through the boat in the plane III - III A boat 1 according to FIGS. 1 to 3 consists of lateral support tubes 2 of a substantially tubular shape with a round cross-section, which is an inflatable and enclose the bottom divided by longitudinal grooves 4 between them.

The round cross section of the support tubes 2 is in the bow and stern area deformed into upright flattened areas 5 and 6, by the action of Longitudinal grooves 7.

The longitudinal grooves 7 run parallel to one another and against the ends of the boat diagonally upwards. The flattened areas 5 are on the one hand due to the incipient constriction 8 and on the other hand limited by Steven 9 and 10. The stems are made by merging the flattened areas and by connecting their beard seams to form a stable, rod-like one Completion achieved. The rear stem 9 is approximately vertical, while the front stem 10 jumps in at an angle like a yacht bow and with a gentle curve into the Floor 3 is transferred. At the upper end, the stems 9 and 10 run in points 11 and 12, which are defined and atypical for inflatable boats without stiffeners Make an impression.

The support hoses 2 are spanned at the top by a spray deck 13, dominated by an inflatable strut 14 running longitudinally in the middle of the boat is.

The strut 14 connects the two stem tips 11 and 12 and is held between the flattened areas in the bow and stern area. The interaction of the Flattened areas 5, the stems 9 and 10, the floor 3 and the spray deck 13 with his Strut 14, give the boat a very stable bow and stern area.

The flattened areas 5 are arranged in a V-position to one another, wherein they are spread apart by the spray deck 13 or the strut 14 at the top, while they are connected in the area of the boat bottom with the formation of keel attachments 22 are. The keel attachments 22 lead seamlessly into the bottom of the boat or its longitudinal grooves above.

The strut 14 in the spray deck 13 is divided in the central area of the boat and there forms a dimensionally stable, inflatable frame 15 which has a seat opening 19 surrounds. The strut 14 can transfer seamlessly into the frame 15. Conceivable however, it is also possible to design the frame separately from the two strut parts. Laterally In addition to the strut 14, there are further, likewise inflatable longitudinal ribs in the spray deck 13 16 arranged, which increase the rigidity of the spray deck and create a visually pleasing, result in a smooth upper contour.

As can be seen from the cross section of Figure 3, the frame 15 with its lateral area approximately in the zenith line of the support tubes 2 set. In this way, the interior of the boat hull can be optimally used and also the indicated with 18 freeboard height of the boat hull by the diameter of the frame 15 increased.

The frame 15 is in its rear area as a back support 20 formed, to which a seated in the rear of the boat 17 occupant can lean on and support. The front area of the frame 15, however, is shown in FIG The shape of a tapered bulge 21 is designed, as a result of which there is storage space in the front part there is good access to the boat.

Of course, the frame 15 fasteners for a Back support or a seat cushion or a seat can be formed, which is then through a certain spreading or tensioning effect in the transverse direction for further structural rigidity of the hull contributes.

In Fig. 3 it can also be clearly seen that the per se by the inflation tension and assembly of outwardly pushing support hoses 2 through the floor 3 and the spray deck 13 are held. When fully inflated, this results in a very high degree of structural rigidity and stability for the boat. The individual elements, i.e. the floor, the support tubes, the spray deck and possibly the frame can be separately inflatable Elements be designed so that if one of these elements is damaged, the boat still remains maneuverable.

In the area of the flattened areas 5 and 6 or on the spray deck 13 - as not shown in detail - fittings or brackets for a rudder, a Drive motor may be provided. Appropriately there is a foot pedals actuatable rudder or a motor is used along the stern stem 9, this in this outflow area, which is favorable due to the boat shape, with a high degree of efficiency and great responsiveness can work.

The hull described above creates a full replacement for the folding boats, which have some disadvantages. The boats according to the invention are ready for use quickly. The boat can be the size of a medium sized suitcase can be folded up and stowed in a simple packing bag. The touring rider, who wants to use the boats according to the invention, e.g. in waters that have no access road can transport the package even over long distances with little effort.

The carrying capacity of the boats according to the invention is of the same dimensions superior to those of conventional folding boats, not only because of the weight of the folding boats The usual stiffening clamping frame is no longer necessary, but also the separate safety air chambers.

The tendency of the boats according to the invention to capsize is less than that conventional folding boats, because the flat bottom with the laterally projecting tubes significantly counteracts capsizing.

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Claims (11)

Claims 1. Intrinsically stable, inflatable boat, from two am Bow and stern converging to a point, the underside of an inflatable tube Enclose the floor between you and the top of an inflatable spray deck are spanned, in which at least one seat opening is recessed, d a d u r c h g e k e n n -z e i c h n e t that the round assembled support tubes (2) at the bow and / or at the stern by at least two in each case in the end area of the support tubes inserted longitudinal grooves (7) constricted in cross-section and standing on edge Flattened areas (5) are deformed, forming an approximately vertical and straight to a point (11, 12) extending Stevens (9, 10) connected are and that the spray deck (13) at least one in the boat's longitudinal direction the stev tips (11,12) connecting, inflatable central strut (14), which in the area of Seat opening (19) divided and as a closed and fastened on the support tubes Frame (15) comprises the seat opening. 2. Boat according to claim 1, d a d u r c h g e k e n n -z e i c h n e t that the longitudinal grooves (7) than in the groove width towards the stem (9; 10) decreasing wedge grooves are formed. 3. Boat according to one of claims 1 and 2, d a d u r c h g e k e n n z e i h n e t that the flattened areas (5) are in the V position with the formation of a Kiel approach (22) are connected to each other. 4. Boat according to one of claims 1 to 3, d a -d u r c h g e k e n n z e i c h n e t that the longitudinal grooves (5) are arranged approximately parallel to one another are and run obliquely upwards towards the stem tip (11; 12). 5. Boat according to one of claims 1 to 4, d a -d u r c h g e k e n It is not indicated that the frame (15) - based on the seat opening (19) towards the rear shaped as a rounded back support (20) and forward in a pointed indentation (21) is. 6. Boat according to one of claims 1 to 5, d a d u r c h g e k e n n z e i c h n e t that on both sides of the strut (14) inflatable ribs (16), are preferably arranged parallel to the strut in the spray deck (13). 7. Boot according to one of claims i to 6, d a d u r c h g e k e n nz e i h n e t that the strut (14) and the frame (15) - in a side view the hull seen - the ribs (16) transferred. 8. Boat according to one of claims 1 to 7, d a d u r c h g e k e n n z e i c h n e t that the connecting area (17) of the frame (15) with the Carrying tubes (2) at their zenith line or - seen from inside the boat - slightly is offset to the outside. 9. Boat according to one of claims 1 to 8, d a -d u r c h g e k e n It is noted that the strut (14), starting from the frame (15), falls slightly runs towards the stave peaks. 10. Boat according to one of claims 1 to 9, d a -d u r c h g e k e It is not indicated that in the stern area on the flattened areas (5) and / or the spray deck (13) Fittings for fixing control and / or drive elements are provided. 11. Boat according to one of claims 1 to 10, d a -d u r c h g e k e It is noted that every support hose, the floor and parts of the spray deck independently create inflatable units.