EP1503934A2

EP1503934A2 - Motor-driven hydroplane for rescue purposes (ice rescue)

Info

Publication number: EP1503934A2
Application number: EP03729865A
Authority: EP
Inventors: Reinhold Ficht; Markus Ficht; Friedrich Liese
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-05-15
Filing date: 2003-05-06
Publication date: 2005-02-09
Also published as: CA2485839A1; WO2003097439A1; CA2507232A1; DE10392642D2; EP1503935A1; US20070134999A1; DE10392641D2; US20060073745A1; WO2003097438A2; WO2003097438A3

Abstract

The invention relates to a keel-less vehicle, (boat, boat-type body, hydroplane, locomotive device or boat device) that can be used, preferably for rescue purposes on both expanses of water and ice. The invention therefore discloses a motor-driven locomotive device comprising a catamaran-type main body consisting of at least two parallel inflatable tubes (1, 2), placed at a mutual distance from one another, a base (6) that is located between said tubes at a distance from the respective tube undersides (4) and an air propeller propulsion device (25) that can be supported on the vehicle body.

Description

Motorized gliding boat for rescue purposes (ice rescue)

The invention relates to a locomotion device, in particular a motor-driven boat, with a catamaran-like body made of at least two parallel hose bodies arranged at a mutual distance and with a bottom arranged between them at a distance from the underside of the hose body (claim 1, 2 or 3).

Such a keel-less "vehicle" (boat, hull, gliding device or locomotive device or boat device) is to be designed equally for use, preferably rescue, on water and ice surfaces.

The boat device according to the invention is particularly suitable for rescue operations on waters, such as lakes, the water surface of which at least partially freezes over. In these cases, a rescue operation with only floating boats is usually no longer possible. A rescue operation across a large ice surface is tedious and time-consuming. This also applies to fire brigade operations from the mainland on an island with a frozen ice surface. In contrast, there is nothing in the way of a rescue operation with the locomotion device according to the invention, the use of which can be carried out quickly and safely and with the necessary rescue equipment and crew, since the motor-driven device is equally safe and fast and without difficulty of a transition to water like moving on ice.

The bow region of the hull can be a further hose body that unites the two hose bodies or a rod (claim 4 or 5). A ramp is formed in the bow area (claim 3), which makes the gliding safe and bumpless when moving from water to ice. This also means that gliding only on a frozen surface, driven by the propeller, is trouble-free.

The area delimited by the tube bodies is preferably occupied by a relatively solid base (claim 2) which is arranged at a distance from the sliding surface and is lowered relative to the center of the tube body. This bottom is completely covered at the bottom by a second bottom part, which can consist of the same or a similar material as the tubular sleeves (claim 6). Rubberized Kevlar fabric is very suitable. When driving on an ice surface, an air cushion forms between the raised (covered) hard floor and the sliding surface, which is used for buoyancy and, for example, for a higher one Speed (with the same drive power), or the ice is loaded with lower contact forces during the journey.

A frame for the air propeller propulsion, preferably easily detachable, can be attached to the fixed floor.

Further advantageous embodiments of the invention result from the dependent claims.

A pivotable bottom flap enables rescuing people who have broken into ice surfaces without having to lift the victim over the hose body (claim 13).

The invention is based on the object of developing a motor-driven device of the type mentioned in such a way that it can be used easily, reliably and effectively for the situations mentioned at the beginning. It should be taken into account that difficult conditions can prevail in these operations, such as frequent changes of water and ice, pent-up or pack ice, strong or gusty wind or rubble with sharp edges of stones and the like. The movement device must be able to be used under all weather conditions and should be able to control accident sites that are difficult to access precisely and quickly.

An important prerequisite for achieving the desired goals is created, namely the corresponding training of the vehicle body itself (claim 1 and / or 21).

By using two different, coordinated floors, you get a compact composite of all associated elements after inflating the hose body. Both floors work together when inflating to achieve this bond, as the flexible floor securely limits the maximum distance between the inflated hose bodies over their entire length to a fixed value and the other floor - in terms of its transverse dimensions - therefore in the transverse direction under compression Voltage is set, that is "clamped". This results in high dimensional stability and load-bearing capacity in the transverse direction (first rigidity), while in the longitudinal direction the inherent flexibility of the floor material is not reduced (second rigidity). This certain flexibility in the longitudinal direction is further supported if the measures according to claims 7 and 8 are applied. Then are transversely extending floor panels on their to the Edges bordering the hose body are bounded by elastically flexible rod profiles. The first stiffness is higher than the second stiffness (claim 22, 19 or 9).

Due to its increased lateral stability due to the clamping, the hull can

Pick up the load of the equipment required for driving and control directly and safely and ensure their perfect interaction.

Reliably absorb the feed and braking forces and transmit them safely over the entire length of the hose body.

Ensure a safe journey even under the difficult conditions mentioned above.

The steerability and lateral stability when driving on ice surfaces is significantly improved by the wear strips arranged directly on the underside of the hose body, which preferably have sharp guide edges (cf. claims 10 and 11).

US-A 5,112,257 shows a vehicle which is said to be usable on water and on ice. For this purpose, two tube bodies are inserted into a shell body and tied to this with straps. If the shell were to be flexible, this would mean that the distance between the hoses would change, thereby distorting the entire rod-shaped structure which was strapped to the hose bodies with the straps. If this is to be avoided, the shell as a whole has to be practically rigid, which makes driving on uneven ice extremely difficult and greatly impairs the controllability of the device. The load of the jacking and associated equipment must be absorbed directly by the flexible hose bodies. The propulsive force of the drive is mainly directed only to the bow area, where the two tubular bodies converge, and is transferred there to the ends of the tubular body via a pneumatic tire. The vehicle can hardly be steered on difficult, irregular ice surfaces, especially in difficult weather conditions. By attaching the jacking and control devices directly to the hose bodies, the space required for rescue operations and the associated equipment is also missing on the device.

FR-A 2,323,573 and US-A 6,148,757 show rigid, profiled boat hulls in which floating bodies are embedded or formed. WO-A 01/12501 is based on another objective, namely to provide components that can be put together in a variety of forms in order to obtain vehicles of different lengths or widths with different drives for different purposes. In all versions, only one floor is provided, which consists of hollow-chamber plates which are firmly connected both at their edges which are adjacent to one another and at the edges adjacent to the tube body and are additionally stiffened by stiffening elements (there 88). The distance between the inflated tube bodies is determined by this floor. Complicated and partially inflatable substructures can be attached to the undersides of the tubular body as skids, with a height approximately corresponding to the diameter of the tubular body itself. Wear-resistant guide strips attached directly to the underside of the hose body to increase the lateral stability and steerability are not provided.

The invention is explained below with reference to schematic drawings of exemplary embodiments. Show it:

Figure 1 shows the structure of a keel-less boat device in perspective

View,

Figure 2 is a plan view of the main body with supported on the floor

Supporting frame,

FIG. 3 shows the structure of the main body in cross section,

FIG. 4 shows a longitudinal section with further details,

FIG. 5 shows a modification to the embodiment according to FIG. 4,

FIG. 6 shows a cut-out area of one of the tubular bodies in a detail and on an enlarged scale,

FIG. 7 shows a detail in side view,

Figure 8 shows a detail of the clamping of the solid floor

FIG. 9 shows a modified version of the clamping,

FIG. 10 shows a perspective view of the rear section with further details,

FIG. 11 shows a further detail in side view,

FIG. 12 shows a cross section through one of the two parallel tube bodies with a skid part stabilizing the lateral stability during the journey,

Figure 13 in the same representation as Figure 12 a modified

Embodiment,

FIG. 14 shows a top view of the arrangement according to FIG. 13 (from below),

Figure 15 shows another detail in the rear area in side view.

The main body of the motorized locomotion device, as shown in FIG. 1 and FIG. 2, essentially consists of a catamaran-like arrangement of two parallel, preferably divided into chambers, tubular bodies 1 and 2. These can, as shown in this exemplary embodiment, on their in the direction of travel pointing ends can be connected to each other by a bow part 9 or a rod 5 (FIG. 5) which also consists of a hose section. The front sections of the bodies 1 and 2 are inclined forward and upward at the angle α so as to form a run-up slope and to facilitate the transition from water to ice or to ice floes.

The tube bodies are connected to one another by a base layer 5 according to FIG. 3, preferably made of the material of the tubes, which is firmly connected to the bodies, preferably by gluing, but is flexible. The connecting line 5a lies between the underside 4 (level 4a between the two undersides) and the level 3 of the tube body 1 and 2 connecting the tube centers, as can be seen at the distances a and b. Along the connecting line, the edges of another floor 6 adjoin, which can be made of wood, rigid plastic or the like. The bottom 6 preferably consists of several panels made of so-called marine plywood. The bottoms 5 and 6 are dimensioned such that when the tube bodies are inflated, the bottom 6 is clamped under tension between the tube bodies and the fastening region 5a of the bottom 5 at 6a in an inner shoulder which is bounded on two sides in order to fix the distance c. The floor 6 serves as a supporting and assembly floor and is dimensioned accordingly.

FIG. 8 is a modified clamping assembly of the base 6 on the diverging hose section 2a with details of the clamping point 6b at a vertical distance a1 from the underside 4.

FIG. 9 shows a modified embodiment of the areas in which the bottom plates 6 adjoin the hose bodies 1, 2 and are held there. A U-shaped rod profile 69 extends perpendicular to the plane of the drawing and adjoins the tubular body edges. A web 69a projects from the closed side thereof in the direction of the adjacent tubular body 2. Above the web there is a further rod profile 67 which, on the one hand, nestles partially around the closed end of the profile 69 and, on the other hand, on the outer skin of the hose body and supports the web 69a from above. The web is supported from below by a hard rubber profile 68 which, like the rod profile 67, is firmly connected to the tube body by adhesive (along the adhesive strips 67a and 68a). The second, flexible base 5 is glued at 5b to profile 68 and the tubular body. When the tube body is inflated, the rod profile 69 is firmly clamped between the rod profile 67 and the hard rubber profile 68 and the base 6 is thus securely anchored between the two tube bodies. At 8 is a protective strip shown, which is described in more detail in connection with Figures 3 and 6. The bottom 6, or the lined-up base plates are held in the U-profile with screws (not shown).

The hoses and the additional base 5 are reinforced, e.g. with a rubberized Kevlar fabric. For friction protection, flexible strips 7 and 8 are attached to the contact surface of the hoses and the underside of the base 5, which are made of wear-resistant material. The strips 7 in the support surface according to FIG. 6, which is arcuate in cross section, are arranged at several intervals. The side edges of the strips 7 and 8 are preferably sharp, so that they contribute to improving the lateral guidance and the steerability of the vehicle on ice. The sharp edges 7b are preferably provided on an additional support 7a of the strips 7, 8 in order to act as runners.

A front region 17 according to FIG. 4 and FIG. 5 of the floor construction is designed as a part which can be pivoted about the transverse axis 18. In this area, the bottom part 5 is not fastened to the front part 9 or the rod-shaped connection 9a at the front end and is connected in its side areas to the bodies 1 and 2, each forming a fold 5a, which causes the part 17 to pivot away in the direction of the arrow 20 enable. The flap-like base 17 is actuated via a prestressed actuating device 19. This facilitates the rescue of people who can be introduced more easily into the vehicle via the slope. If a connecting rod 9a is provided instead of the bow part, the recovery is further facilitated since the rod can also serve as a handle.

On the floor 6 a frame 10 is (easily) detachable e.g. by means of four screws, on which in the exemplary embodiment the drive (via support rods 20) and all equipment parts of the vehicle can be mounted. In the example shown, the frame 10 consists of a rear section 11 and a front section 12.

In the exemplary embodiment shown, a motorcycle-like seat bracket 30 with a steering device 32 is mounted on the front section 12 of the frame part 10. The air propeller propulsion is shown at 25 to 27 in FIG.

The ends of the two hose bodies are firmly connected to one another by an approximately upright tail board H, preferably also made of marine plywood. This can serve to support various additional devices. Thus, according to FIG. 15, a leaf-shaped rudder 15, which can be lowered between a ready position and an effective position and is connected to the handlebar 32 parallel to the rudder 27, can be provided in order to support the control in the water. The sheet 15 is connected to a liftable and lowerable swivel frame 51, which can slide up and down in a sleeve 51a and is rotatably connected to it via a toothing, while the sleeve itself is rotatably mounted and via lateral arms 52 with the cables 53 Controller 32 is connected. The whole is mounted on the frame 10.

Furthermore, braking elements for braking the vehicle when driving on the ice can also be mounted on the rear plate H. As FIG. 7 and FIG. 11 show, these can have one or two arms 13a, 13 and can be pivoted about a transverse axis 55, 55a and have brake tines 54, 54a at their free ends. The arm 13 is pretensioned by a strong spring 58, which is locked at 59, or the arm 13a can be controlled pneumatically 58a. The bolt can be released by cable 60. The support bracket 56 is the holder for mounting the brake elements. The ice surface is indicated at 57.

According to FIG. 10, elements can also be mounted on the rear plate H, which serve for transport or locomotion in the country when the slide boat is not in use, for example an arrangement with a support wheel 62 on a crank device 64 with a vertical drive 63, which consists of - and retracted to lower and raise the support wheels, depending on the type of use. Two auxiliary lines 65, 66 are drawn in, which enable a symmetrical arrangement, but a one-sided arrangement is also realistic. If a symmetrical arrangement is selected, the two assembly points are located along the auxiliary lines 65, 66 symmetrically on both sides of the median plane (the vertical median plane) of the hull. The described jockey wheel device (61 to 66) can be used in connection with a lever guided on a wheel, which is used on the opposite (bow) side on land, having an upstanding nose section (not shown) for engaging in a provided on the bow and pointing downwards, for example a groove. The nose section is considerably shorter than the lever and they have an angle to one another which is greater than 45 °, preferably between 60 ° and 150 °, in order to introduce the nose section into the receptacle by lifting the longer main lever, to lift the boat and on it To be able to drive the support wheel supported on the back, pulled by the longer lever arm. In order to improve the lateral stability of the vehicle when driving on ice, blade-like runners 38 can be provided on the hose bodies. Their length is to be chosen small in relation to the length of the body 1, 2, preferably under! the length so that the flexibility of bodies 1 and 2 is not restricted and controllability is retained. A length between 5cm and 60cm has proven itself. They are advantageously arranged in the rear or front area. In the example shown in FIGS. 12 to 14, each runner 38 consists of a cross rail 39 from which the runner edge 40 projects.

A controllable center skid (in the center) can form a skid triangle with the other two fixed skids, for example two skids near the bow on the hose bodies and a center skid on the rear plate H. The center control skid is coupled to the control of the rudder 27. The control skid can be pressed against the ice surface by a spring force in order to increase the steerability, it can also be designed as a flat paddle above its skid in order to be able to steer in the water. Spring preload and a shape forming sliding surfaces ensure sliding onto an ice surface or driving over ice floes or the like.

The runners 38 are fastened by clamping, utilizing the tensions on the hose jacket 35 which arise when the hose bodies 1 and 2 are inflated. According to FIG. 12, clamping pockets 36 and 37 are attached to the jacket 35, which grip around the edges of part 39 and secure part 39 press against the jacket 35, the plate part 39 can also be curved slightly upwards.

In a modified embodiment according to FIGS. 13 and 14, the edges of the hooks 43 and 46 encompassing the part 39 are each provided on longer tabs 41, 44 which are arranged next to one another and whose end sections 41a and 44a are fastened to the hose jacket 35 at 42 and 45, respectively , The tabs 44, 41 are flexible. When the bodies 1 and 2 are inflated, the tabs are pulled in opposite directions by widening the intermediate piece 35a of the hose 35 and thus firmly clamp the part 39 between the hook-shaped ends 43, 46.

As FIG. 14 shows, three tabs are sufficient for a respective skid section. In the front view, the tabs 41, 44, 47 seem to cross, but are adjacent in the top view. It can be seen that the vehicle is simply constructed and has a comparatively low weight. It is easy to use and can accommodate additional equipment and people. It is roadworthy on water as well as on ice surfaces and is therefore versatile, even under difficult conditions, such as storms and severe weather.

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Claims

Expectations:

1. Motor-driven locomotion device with a catamaran-like main body made of at least two parallel, mutually spaced, inflatable hose bodies (1, 2) and with a spaced between them from the respective hose body underside (4) bottom (6) and with a Supportable air propeller propulsion (25).

2. Motor-driven device with a keelless vehicle body made of at least two parallel, inflated hose bodies arranged at a distance (c)

(1, 2) and with a substantially rigid floor (6) arranged between them, on which an air propeller propulsion (25) can be mounted (20, 21), and on each of the hose bodies at least one - lateral stability and controllability during the Driving effect - piece of skid (7,38,39,40) is arranged.

3. Slidably movable device for a rescue operation on frozen ice surfaces, with a vehicle body made of at least two elongated and essentially parallel hose bodies (1, 2), each with an inner cavity and each with a hose body underside, wherein

(a) between the substantially parallel hose bodies (1, 2) and at a distance (a, a1) from the hose body undersides (4) but below a central plane (3) of the hose body, a solid base (6) can be clamped to Pushing apart the tube body;

(b) a flexible floor tarpaulin (5) is firmly connected to the parallel underside of the hose body near the clamping points of the fixed floor (6) in order to determine a maximum distance (c) of the hose body when the fixed floor is clamped;

(c) the hose bodies (1, 2) have a front section and a rear section, the front section rising towards the front in order to form a sliding slope for locomotion on frozen ice surfaces.

4. Device according to one of claims 1 to 3, characterized in that the two parallel tube bodies (1, 2) are connected to each other on the bow side via an approximately arch-shaped inflatable tube section (9) which rises towards the parallel tube bodies in order to to form a slip slope for the transition from a water to an ice surface.

5. Device according to one of claims 1 to 3, characterized in that the two parallel hose body (1, 2) formed obliquely rising towards the bow and in the region of higher ends via a rigid, in particular rod or tubular cross element (9a) with each other are connected.

6. Device according to one of claims 1 to 5, characterized in that a lateral surface delimited by the hose bodies is filled by the substantially rigid bottom (6), which is at a vertical distance (a, b) from both the undersides (4th ) as well as from a plane of the diameter centers (3) of the parallel tube body adjoining this and is covered at the bottom by a second base part (5), in particular from the material of the tube body or a corresponding material, which second base part (5) at least is firmly connected to the parallel tube bodies, in particular is glued (5a, 5b).

7. Device according to one of claims 1 to 6, characterized in that the rigid bottom (6) with inflated tubular bodies (1, 2) of these with its side edges substantially at the level of the fastening line of the second bottom part (5) clamped under tension and is held in this way (6a, 6b; 68.67).

8. Device according to claim 2 or 3 or 6 or 7, characterized in that the bottom (6) consists of a plurality of flat bottom sections (6), in particular of marine plywood, which at their edges adjacent to the hose body (1, 2) an approximately U-shaped section of a first rod profile (69) is enclosed, which in turn engages in an approximately angular rod profile (67) which is fastened to a respective tubular body, in particular glued to it; or is clamped between the rod profile (67) and a hard rubber profile (68) fastened, in particular glued, to the tube body; or the fixed or rigid base (6) can be inserted between two spaced-apart profile pieces (67, 68) arranged on the tube body or - in the relaxed state of the tube body - can be removed (69a).

9. Device according to claim 8, characterized in that the two rod profiles (67; 69) consist of elastically flexible, in particular aluminum-containing material.

10. Device according to one of the preceding claims, characterized in that on the underside surfaces of the parallel tube body (1, 2), and / or also the second bottom part (5) flexible slide strips (7, 8) made of wear-resistant material are provided as skid pieces ,

11. The device according to claim 10, characterized in that a plurality of slide strips (7) are arranged on the underside, cross-sectionally arc-shaped surface of each inflated hose body (1, 2) at mutual circumferential distances, and the side edges of all slide strips (7, 8) as sharp

, Leading edges (7b) are formed.

12. Device according to claim 11, characterized in that the sharp guide edges (7b) are provided on a wear layer (7a) applied to the slide strips (7, 8).

13. Device according to one of the preceding claims, characterized in that the floor (6) in a front in the direction of travel one of an actuating device (19) about a transverse axis (18) between a raised travel position and a downwardly inclined rescue position pivotable floor section ( 17).

14. Device according to claim 13, characterized in that in the region of the pivotable bottom section (17) the second bottom part (5) is each connected to the rising bow region of the two hose bodies (1, 2), forming a fold (5a) which allows the pivoting movement ,

15. Device according to one of the preceding claims, characterized in that at least one skid (38, 39, 40) improving the lateral stability during the journey is arranged on at least one selected longitudinal section of each of the two parallel tube bodies (1, 2).

16. The device according to claim 15, characterized in that sections of the runners (38 to 40) on the tubular bodies (1, 2) in particularly flexible but firmly attached to the tubular bodies holders (36, 37; 41, 44) solely by inflating the hose body is held in the jacket of the resulting tension forces.

17. Device according to one of the preceding claims, characterized in that the two ends of the tubular body (1, 2) are connected to each other by an approximately upright rear plate (H), on the outside at a distance from the longitudinal center line of the locomotion device holders for optionally attachable or optionally lowerable support wheels (61 to 66) are provided.

18. Device according to claim 8 or 9, wherein mounting means engage in the U-shaped section of the bar profile in order to firmly connect the bottom (6) to the latter.

19. Device according to claim 1, 2 or 3, wherein a receptacle is provided in the bow area facing the underside, for engaging a lever guided on a wheel, which has an upwardly projecting nose section, for engaging in the groove and for lifting the vehicle to one side, in order to be able to move it by hand on at least one support wheel (62) arranged at the rear together with the lever arm provided with a wheel.

20. The device of claim 1, 2 or 3 or 9, wherein the weakly resilient or substantially rigid first floor (6) has a transverse stiffness between the hose bodies which is greater or greater than its longitudinal stiffness.

21. Motor-driven device for locomotion on water and ice surfaces, in particular for rescue operations, with a - in the inflated state - catamaran-like main body made of at least two parallel, spaced apart and inflatable or deflatable first hose bodies (1, 2), in which device a. between the - inflated - hose bodies and at a first distance (a, a1) from the underside of the hose body (4), but at a second distance (b) below a plane of the diameter centers of the hose body a weakly stiff or essentially rigid first Floor (6) can be clamped or clamped; b. a flexible second base (5), in particular made of the material of the tube body or a corresponding material, is arranged below the first base (6) and is firmly connected, in particular glued, to the parallel - inflated - tube bodies near the clamping points of the first base (6) ; c. the two - inflated - tubular body or a bow-shaped tubular body section connecting their bow ends to one another - in the inflated state - form a sloping slope that increases towards the front, for a transition from a water surface to an ice surface or vice versa; d. Flexible slide strips (7) made of wear-resistant material are provided directly on the underside surface of each of the first tubular bodies (1, 2).

22. The device according to claim 21, wherein the weakly stiff or substantially rigid first floor (6) has a transverse stiffness between the hose bodies (1, 2) which is greater or stronger than its longitudinal stiffness.

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