DE1939116B2 - SWIMMING BRIDGE - Google Patents

Description

40

The invention relates to a floating bridge which can be transported on and from a vehicle Can be laid underneath and can be swiveled on a floating, self-propelled pontoon stored folding bridge parts existing floating bridge units.

From the magazine "Aluminum" 1961, pp. 109 and 110, a floating bridge is known whose parts of the bridge forming the roadway are supported on pontoons in the water are. When this bridge is being laid, the pontoons are set down in the water by a vehicle And self-propelled according to the location of the Move the bridge to be laid.

The disadvantage of this floating bridge is. that for unloading and bringing the bridge parts into the water as well as the pontoons, either assembly cranes must be used or the unloading process and launching must be done by hand.

The invention is based on the object of providing a unit that can be transported on vehicles Quick and easy to install floating bridge.

The object is achieved in that to hold the swimming bridge unit on the Vehicle and a telescopic boom is arranged on the vehicle for their relocation. This creates a Floating bridge achieved with the greatest possible mobility, which can be carried out without further auxiliary construction

can be easily installed in a short time. The floating bridge is transported in the usual way Trucks whose loading platform can be exchanged for a telescopic boom. The parts of the floating bridge are stored on the boom and can be used together with the pontoon these are filed. This makes it easy and quick to put down the entire floating bridge enables. In addition, the embankment has to be worked on before the floating bridge is laid down not necessary, whereby a further time saving is obtained.

Furthermore, the pontoon of the swimming bridge unit can be powered by an internal combustion engine arranged in the stern driven, which are sunk between the top and bottom of the pontoon mounted on a console is. A simple and low-noise drive is obtained through this design of the pontoons. Further the internal combustion engine can be quickly exchanged at any time after loosening the console, which means with possible damage this can be repaired within a short time.

Furthermore, it is useful if the pontoon in the In the area of the stern, sunk-in, in height and depth lines, has swiveling jet shafts. This arrangement of the Strahlschächle is the The floating bridge pontoon can be maneuvered in any direction of travel. Because the beam shafts are sunk are arranged, they are largely protected from damage.

Furthermore, the internal combustion engine can be used to drive a cross-flow pump for a water jet drive serve, whose suction shafts are arranged on the side of the pontoon. This arrangement of the intake ducts enables driving in shallow waters without the water jet pump becoming heavily contaminated to fear.

The fresh air supply for the internal combustion engine is expediently via a foldable one at the rear arranged snorkel. With this snorkel training, a complicated seal can be achieved to the engine room. In addition, the swimming bridge is the snorkel when transporting folded down and thus when loading and unloading the Bridge not a hindrance.

In the drawing, exemplary embodiments are the Invention shown. It shows

F i g. 1 is a side view of the laying process of a Floating bridge,

F i g. 2 shows a side view of the laid floating bridge according to FIG. 1,

F i g. 3 the top view of a pontoon with the drive on a larger scale,

F i g. 4 shows a view of the pontoon in the direction of arrow S in FIG. 3,

F i g. 5 a partial section of the suction shafts and the jet shafts of the drive for the pontoon,

6 shows the top view of the stern of the pontoon, partly in section,

F i g. 7 shows a side view of a further possibility of laying the floating bridge and

F i g. 8 the front view of the pontome with a bridge part in place.

To create a floating bridge 1, several basic elements of bridge parts 2, 2 ', 2 "and a buoyant pontoon 3 provided for transport on a vehicle 4, namely a Trucks are loaded. The frame 5 of the

The truck is provided for this purpose with a telescopic boom 6, which is mediated a pivot device 7 is pivotably attached to the frame 5. On the boom is de, pontoon 3 with the Bridge parts 2, 2 'stored. To the short bridge part 2, which has lanes on both sides of its plane of symmetry 8, the bridge part 2 'serving as a loading ramp 10 is articulated at one end 9. The short part of the bridge 2 as well as the long bridge part 2 ″, which is loaded on another truck (FIG. 7) each with the mediation of a turntable 11 on the Ponton 3 pivoted. The bridge parts 2.2 ', 2 " are designed as hollow bodies and combined in several cells, not shown, to form a profile support frame. The pontoon 3 is provided on its bow side 12 with a flow-favorable bow 13. The pontoon 3 is divided into several waterproof cells 14. A drive unit 16 is located in the stern 15 of the pontoon 3 arranged. The drive unit (6 is between the top 17 and the bottom 18 of the pontoon 3 held and consists of an internal combustion engine 19, which is mounted on a console 20, and a Cross-flow pump 21 for a water jet drive 22. The entire drive unit 16 is watertight in FIG stored in the pontoon. The fresh air for the combustion power · 2 ^ Machine 19 is sucked in via a snorkel 23 pivotally mounted at the stern of the pontoon 3, so that the pontoon 3 becomes submersible. The snorkel 23 is in the area of its suction opening 24 with a foldable Give away control panel 25 and a driver's seat 26 for controlling the pontoon. To control the pontoon 3 are in the rear 15 in a recess 27 of the underside 18 pivotably mounted in vertical and lateral directions Strahlschäehtc 28 arranged, which can be moved from the control panel 25 from. The jet shafts 28 are stored immediately after the pump of the water jet drive 22. The pump sucks the water over suction ducts 29 arranged laterally in the area of the underside 18 of the stern 15 of the pontoon 3 Lines 30 and presses this through the jet shafts 28 back into the surrounding water. By If the position of the jet shaft 28 changes, the exiting water jet is pivoted, whereby the pontoon 3 its direction of travel is changing.

To lay a buoyant bridge crossing, as shown in FIGS. 1 and 2 indicated, an assembly consisting of the bridge parts 2 and 2 'with the ramp 10 on the truck to the embankment of the river run backwards. The telescopic booms 6 are then extended and lowered against the surface of the water with the aid of the pivoting device 7. Now, with the help of a cable winch, not shown, the pontoon 3 with the bridge parts 2 and 2 'slides on the outriggers into the water. Then the snorkel 23 is erected and the driver's seat 26 and the control panel 25 are folded out. After the internal combustion engine 19 has been started, the pontoon 3 with the bridge parts 2 and 2 'can automatically swim towards the opposite bank. On the opposite bank, the access ramp 10 is now opened and anchored on the bank. Then the pontoon 3 is rotated by about 90 ° and directed with the bow 13 against the flow of the river. The rotation takes place around the pivot point of the turntable 11, so that there is always a connection between the bridge parts 2 and 2 'and the pontoon 3. During this laying process, the boom of the truck is drawn in again and lowered onto the frame 5. Then the truck leaves its location and can be loaded with new bridge parts. The other trucks are provided with the long bridge parts 2 " . These trucks unload, as described above, the bridge parts 2" also via a pontoon 3 and are then connected to one another in the water in a known manner until the floating bridge 1 to be formed almost covers the two Connects the banks with each other. The last bridge to be floated on also consists of a short middle part of the bridge with a basic element (parts of the bridge 2 and 2 ') that serves as a ramp 10. The floating bridge 1 created in this way can now be driven over. To increase the lateral stability, the swimming bridge can 1. if it cannot be anchored. are also held in their position by the water jet drive 22 of the individual pontoons 3. The dismantling of the floating bridge 1 takes place in the reverse order to that described above.

Another use of the Floating bridge 1 is the pontoon 3 with the attached bridge parts 2 and 2 'to load immediately after launching and the Use floating bridge 1 as a ferry.

In the case of flat bank boundaries, this can bring in water the floating bridge 1 can also be carried out without the aid of the boom (Fig. 7). Here drive the Truck backwards into the water until the saddled pontoon 3 of the bridge has sufficient buoyancy owns and lifts itself from the transport vehicle 4. The transport vehicle can then do that again Leave the water and the pontoon 3 swims automatically to the bridge. With such cheaper Due to the nature of the bank, the floating bridge 1 can be relocated within a very short time, since several Transport vehicles side by side at the same time the required bridge parts 2.2 '. 2 "can store.

For this purpose 3 sheets of drawings

Claims (5)

Claims: 19 1. Floating bridge that can be transported on a vehicle and relocated from it, from swiveling mounted on a floating, self-propelled pontoon hinged bridge parts existing floating bridge units, characterized in that that to hold the floating bridge unit on the vehicle (4) and to their Laying a telescopic boom (6) is arranged on the vehicle. 2. floating bridge according to claim 1, characterized in that the pontoon (3) of the floating bridge unit is driven by an internal combustion engine (19) arranged in the rear (15) which sunk between the top and bottom (17 and 18) of the pontoon (3) mounted on a console (20) is. zo 3. Swimming bridge according to claim 1 or 2, characterized in that the pontoon (3) in the In the area of the stern (15), jet shafts are sunk and pivotable in the vertical and lateral directions having. 4. floating bridge according to claim 2 or 3, characterized in that the internal combustion engine (19) is used to drive a cross-flow pump (21) for a water jet drive (22) whose suction shafts (29) are arranged on the side of the pontoon (3). 5. Swimming bridge according to one of claims 2 to 4, characterized in that the fresh air supply for the internal combustion engine (19) via a snorkel which is foldably arranged at the rear (15) (23) takes place.