DE1784593C - Pontoon unit for the formation of swimming bridges - Google Patents

Description

The invention relates to a pontoon unit for the formation of swimming bridges, consisting of a central pontoon, two intermediate pontoons articulated on both sides and two articulated to these External pontoons, with the external and intermediate pontoons in the collapsed state of the pontoon unit rest directly next to each other on the central pontoon.

Such a pontoon unit consists of the German Auslegeschrift 1099 881 an amphibious multipurpose vehicle. The central pontoon consists of the vehicle body, on that in the collapsed state of the pontoon unit, the intermediate pontoons lie on their one another facing sides have recesses for receiving the outer pontoons. The outside pontoons consist of lane boards designed as floating bodies.

In a pontoon bridge according to the magazine "The Military Engineer", No. 364, 1963, p. 103, exist the pontoons consist of essentially equally thick pontoon parts, which are articulated in the shape of a "W" are connected to each other. When unfolding the outer pontoons with their free ends but always above the waterline, so that the outer pontoons when unfolding the pontoon unit still hit the water surface more or less strongly.

Furthermore, the German Auslegeschrift 1 105 301 has also become known within an an a vehicle body attached, hollow and downwardly open float an additional float to accommodate the

tion of the pontoon unit swung out of the float can be.

It is not new anymore, plate-shaped unit. to fold apart or fold up like an accordion. So are similar folding methods and

directions for this by the French patent specification 1473 392 ", TJSA.-Patent specification 3 211122 and German Auslegeschrift 1 267 124 became known. The well-known folding method and the associated facilities to unfold, however, can

ao not easily transferred to pontoon units, since we are dealing here with the opening of hatch covers, which are constructed in such a way that the outer Lu kendeckelteil can support a support wheel on a track.

The object underlying the invention is now to be one for the formation of swimming bridges to create a suitable pontoon unit of the type mentioned at the beginning, which consists of comparatively few, space-saving collapsible individual parts exist;

and can be laid or set up very quickly.

This is according to the invention characterized Reach ^1, that the two intermediate pontoons in the pivoted position hochgc the available space above the: filling means pontoon and that the two Außenpon-

tons rest on the intermediate pontoons in the swiveled-up position and are on the outside of the intermediate pontoons extend to the bottom of the central pontoon.

The formation and location of the outer pontoons in accordance with The invention has the advantage that the pontoon unit, which practically forms an "M", is folded out of it Position is brought into its extended or spread swimming position like an accordion. the sliding apart of the outer pontoons creates an extremely calm and stable one Position of the pontoon unit is achieved, so that the construction of a pontoon bridge is considerably simplified. on Because of the relatively few elements of the pontoon unit, a floating bridge can also be used without significant effort can be relocated relatively quickly, so that a body of water, for example a River can be bridged with little cost and time. In addition, there are the pontoon units can be quickly folded up again and transported in a confined space.

In order to improve the stability of the folded pontoon unit during transport, this formed according to a preferred feature of the invention so that in the collapsed state of the pontoon unit, the free end sides of the outer pontoons are flush with the bottom of the central pontoon. This results in a comparatively large footprint, so that the pontoon unit also when Transport on a strongly vibrating vehicle

maintains a stable position. '

In a further advantageous embodiment of the invention, the two intermediate pontoons are through one Hydraulic cylinder that exerts a cam arm

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two meshing pinions arranged on the pivot bearing axles of the intermediate pontoons moved, swiveling up.

A preferred embodiment of the invention is shown in the drawing and is described below described in more detail. It shows

F i g. 1 the pontoon unit in the folded state,

F i g. 2 the pontoon unit in partially unfolded Status,

F '. 3 the pivoting device of the pontoon unit in v «. ■■■ on an enlarged scale.

When building a floating bridge, several of the in F i g. 1 and 2 shown pontoon units 1 one behind the other arranged and connected to each other. Each pontoon unit 1 consists of several articulated interconnected pontoons which are used for transporting the pontoon unit in the in F i g. 1 shown swiveled up Location can be brought. The pontoon unit has an approximately trapezoidal cross section trained central pontoon 2, two articulated intermediate pontoons 3 and two articulated thereon connected external pontoons 4. For the articulated connection of the intermediate pontoons 3 are in the central pontoon 2 two pivot bearing axles 5 are provided, which are arranged so that the intermediate pontoons 3 in the collapsed State of the pontoon unit 1 above the central pontoon 2 a vertical position can take. On the outside of the intermediate pontoons 3 there are further joints 6 above which the outer pontoons 4 are connected. The joints 6 are arranged so that the outer pontoons 4 in the swiveled up position of the pontoon unit 1 directly adjacent to the intermediate pontoons 3 lie perpendicular to the central pontoon 2. The outer pontoons 3 extend from the Outer sides 31 of the intermediate pontoons 3 up to the bottom 21 of the central pontoon 2.

In the swiveled up position used for transport, the pontoon unit 1 thus takes up comparatively takes up little space. Like Fi g. ί shows lie die.frei end sides 41 of the outer pontoon 4 and the bottom 21 of the central pontoon 2 in one plane. This creates a comparatively large footprint, which during transport, for example with a strongly resilient and vibrating vehicle is advantageous.

The free end sides 41 of the outer pontoons 4 are kept constantly below the water level. This allows the outer pontoons 4 as a stabilizing Serve floating bodies, and motorized drive elements 7 can be accommodated in their free ends, with which the pontoon unit 1 can be driven and controlled in the water. With the help of this Both drive elements 7 result in particularly good maneuverability of the pontoon unit 1.

Cantilever arms 8 can be attached to the upper ends of the outer pontoons 4, on which actuating cables Attack 9, which are fastened to fastening bolts 10 of the respective opposing intermediate pontoons 3 are. With the help of the operating cables 9, the unfolding of the individual pontoons is facilitated. So that the operating cables 9 are not damaged on the sharp edges of the intermediate pontoons 3, are provided on the latter pulleys 11.

When unfolding the Zwischenpontonh J also Außenpontons4 automatically aufp ^a work by the Betäügungsseile 9th This is clearly the case with the partial opening position shown in FIG. evident. Also, here is seen that the in (J. ■ - dipping water ends of the outer pontoons 4;. Act in support float This wa rend of the unfolding of the Pontoneinhei quite considerably increases · i whose floating stability in the VUI; constantly unfolded, not shown... In this stretched position, the pontoons are positioned horizontally next to one another.

In Fig. 3 is a pivot device 12 for unfolding the pontoon unit 1 dargesteü: This pivoting device 12 consists in the illustrated » Embodiment of two kämnu-iiden, arranged on the bearing axes S of the central pontoon2 Pinions 13. The one pinion 13 is via a cam arm 14 with the piston rod IS a * preferably hydraulically adjustable cylinder connected to a mounting pin 17 of the Central pontoons 2 is attached. By this drive unit 12 described above, the two sides to the axis of symmetry 18 of the central pontoon 2 lying intermediate pontoons 3 and outer pontoons 4 in the Swiveled synchronously, i.e. evenly folded and unfolded. This ensures that the center of gravity of the entire pontoty unit 1 does not move laterally with respect to the central axis 18.

1 sheet of drawings

Claims (5)

Patent claims: 1. Pontoon unit for the formation of floating bridges, consisting of a central pontoon. two intermediate pontoons articulated on both sides and two outer pontoons linked to Hiese, where the outer and intermediate pontoons when folded State of the pontoon unit resting directly adjacent to one another on the central pontoon, characterized in that the two intermediate pontoons (3) in the swiveled up position over the available space the central pontoon (2) and that the two outer pontoons (4) are in the swiveled-up position on the intermediate pontoons (3) and move from the outside (31) of the intermediate pontoons extend to the bottom (21) of the central pontoon. 2. pontoon unit according to claim 1, characterized in that that in the folded state of the pontoon unit (1) the free end sides (41) of the outer pontoons (4) with the bottom (21) of the central pontoon (2) are aligned. 3. pontoon unit according to claims 1 and 2, characterized in that both intermediate pontoons (3) by a hydraulic cylinder (16), which via a cam arm (14) the two intermeshing, on the pivot bearing axles (5) of the intermediate pontons (3 ) arranged pinion (13) moved, swiveling up s ^; "d. 4. pontoon unit according to claims 1 to 3, characterized in that the outer pontoons (4) on deck have outwardly protruding, attachable cantilever arms (8) to which operating cables (9) attack on a fastening bolt (10) of the opposite Intermediate pontoons (3) are attached. 5. pontoon unit according to claim 4, characterized in that the operating cables (9) on the intermediate pontoons (9) arranged pulleys (11) are guided.