EP2251255A2 - A sectional pontoon bridge - Google Patents

A sectional pontoon bridge Download PDF

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Publication number
EP2251255A2
EP2251255A2 EP20100461514 EP10461514A EP2251255A2 EP 2251255 A2 EP2251255 A2 EP 2251255A2 EP 20100461514 EP20100461514 EP 20100461514 EP 10461514 A EP10461514 A EP 10461514A EP 2251255 A2 EP2251255 A2 EP 2251255A2
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EP
Grant status
Application
Patent type
Prior art keywords
pontoon
cassette
cassettes
main compartment
previous
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP20100461514
Other languages
German (de)
French (fr)
Other versions
EP2251255A3 (en )
EP2251255B1 (en )
Inventor
Tadeusz Niezgoda
Wieslaw Krason
Agnieszka Derewonko
Pawel Bogusz
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Wojskowa Akademia Techniczna
Original Assignee
Wojskowa Akademia Techniczna Im
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date

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    • EFIXED CONSTRUCTIONS
    • E01CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01DCONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D15/00Movable or portable bridges; Floating bridges
    • E01D15/14Floating bridges, e.g. pontoon bridges
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
    • B63B35/00Vessels or like floating structures adapted for special purposes
    • B63B35/34Pontoons
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
    • B63B7/00Collapsible, foldable, inflatable or like vessels
    • B63B7/06Collapsible, foldable, inflatable or like vessels having parts of non-rigid material
    • B63B7/08Collapsible, foldable, inflatable or like vessels having parts of non-rigid material inflatable
    • B63B7/082Collapsible, foldable, inflatable or like vessels having parts of non-rigid material inflatable having parts of rigid material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B63SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
    • B63BSHIPS OR OTHER WATERBORNE VESSELS; EQUIPMENT FOR SHIPPING
    • B63B3/00Constructions of hulls
    • B63B3/02Hulls assembled from prefabricated sub-units
    • B63B3/08Hulls assembled from prefabricated sub-units with detachably-connected sub-units

Abstract

The invention relates to a cassette for a pontoon bridge, the cassette (1) comprising a main compartment (9), a pontoon (2) having an elastic cushion installed in the main compartment (9), a split bottom (3) of the main compartment (9) with movable lids configured to open under pressure of the extending pontoon (2) when the pontoon (2) is inflated such as to allow extension of the pontoon (2) outside the main compartment (9). The invention also relates to a pontoon bridge formed of a plurality of the cassettes (1).

Description

  • The invention relates to pontoon bridges.
  • The currently known and used buoyant systems comprise individual buoyant segments, which are objects made of metal or plastics, having different dimensions and a closed form. The ready-to-use buoyant segments must have factory-provided leak tightness to provide appropriate displacement. Their disadvantages include high transport volume and requirement for abundant transport means, accompanying equipment (e.g. cranes) and service personnel. Large and heavy pontoons forming military buoyant systems of this type are known from the Polish patent PL158579 and the Polish patent application PL297453.
  • In particular, the steel segments known from the Polish patent PL158579, due to their high dead weight and large dimensions, allow one truck to transport only two segments. Loading and unloading of these pontoons, as well as their service and assembly on water need numerous, highly qualified crew and specialized equipment. All of that limits the scope of applications of such heavy constructions. The lack of mobility makes them unusable especially in hard cross-country conditions, which limits operational capabilities. Exploitation of such constructions is very expensive. Steel pontoons require providing appropriate conditions of storage (in particular, large space) and anti-corrosion protection. They also require maintenance of additional sites with specially adapted vehicles for transport of individual segments and additional equipment necessary for assembly, disassembly and maintenance in operating condition. The complicated exploitation procedures of heavy metal pontoons having closed form require also maintaining numerous crew and appropriate training of service personnel. The mobility of such objects is very limited due to their constructional features. Use of such constructions involves complicated connecting mechanisms. The above features result in high exploitation costs of such constructions.
  • The object of the invention is a cassette for a pontoon bridge, the cassette comprising a main compartment, a pontoon having an elastic cushion installed in the main compartment, a split bottom of the main compartment with movable lids configured to open under pressure of the extending pontoon when the pontoon is inflated such as to allow extension of the pontoon outside the main compartment.
  • The movable lids of the split bottom can be further configured to close and fold the pontoon into the main compartment when the pontoon is deflated.
  • Each of the movable lids of the split bottom can be connected with the main compartment by hinges with a spring mechanism configured to bias the movable lids to closed position.
  • The split bottom can be a two-lid bottom comprising two movable lids installed opposite each other.
  • The cassette may further comprise an elastic net attached to the movable lids of the split bottom and configured to keep the bottom part of the pontoon substantially above the bottom edges of the movable lids of the split bottom.
  • The elastic net can be further configured to limit the maximum opening of the movable lids of the split bottom.
  • The main compartment can be made of lightweight plastics.
  • The main compartment can be joined with a roadway surface for moving vehicles.
  • The cassette may further comprise connectors for connecting the cassette with other cassettes.
  • The pontoon can be inflatable with an inflating system having pressure connectors for connecting the inflating system with inflating systems of other cassettes.
  • The movable lids of the split bottom can be made of reinforced material to provide ballistic cover for the pontoon.
  • The cushion of the pontoon can be made of punctrure-resistant, reinforced elastic or semi-elastic material.
  • Another object of the present invention is a pontoon bridge formed of a plurality of the cassettes according to the invention.
  • A plurality of cassettes can be connected with connectors limiting the range of movement between the cassettes.
  • A plurality of cassettes may have an inflating system for inflating the pontoons and wherein the inflating systems of the cassettes are connected together with pressure connectors.
  • The present invention is shown by way of exemplary embodiment on a drawing, in which:
    • Fig. 1 shows a cassette pontoon bridge comprising individual cassettes.
    • Fig. 2 shows the cassette in a transport position.
    • Fig. 3 shows the cassette in a working position.
    • Fig. 4 shows the cassette in an intermediate position.
  • The cassette pontoon bridge according to the invention has a modular structure and is composed of individual cassettes 1, as shown in Fig. 1. A plurality of cassettes 1 can be immediately assembled and used to build the cassette pontoon bridge.
  • The main element of construction of a single cassette 1 of the cassette pontoon bridge is a main compartment 9 of the cassette 1 made of lightweight plastics, such as polyurethane, polyethylene. A pontoon 2, having a high strength elastic cushion, is installed in the compartment 9 of the cassette 1. In a transport position, the cushion of the pontoon 2 is packed up inside the main compartment 9, which is closed by a split bottom 3. The split bottom 3 comprises a movable left and a movable right lid, installed on lid hinges together with a spring mechanism 4. The lids are closed by means of the spring mechanism 4. An elastic net 6 is attached to both lids of the cassette 1, which stabilizes the pontoon 2 in the open position and facilitates its proper folding and sets its placement for the transport position. The net 6 also closes the split bottom 3. The cushion of the pontoon 2 is inflated with compressed air by an inflating system, the elements of which are joined between individual cassettes 1 by quick-release pressure connectors 5. The top portion of the cassette 1 is joined with a roadway surface 7 for moving vehicles. The cassettes 1 are interconnected by means of intersegmental connectors 8, which provide adequately strong connections between individual cassettes 1 of the cassette pontoon bridge and limit the range of movement between the cassettes 1.
  • A single cassette 1 is characterized by a construction allowing easy and quick folding to a transport position, as shown in Fig. 2. In the transport position, the cushion of the pontoon 2 is packed up into the main chamber of the cassette 1, which is closed by the split bottom 3. Therefore, the volume of the cassette 1 can be decreased, which provides saving of the transport space and increases the mobility of the cassette pontoon bridge.
  • The cassette 1 has a variable displacement. The element providing the variable displacement during use is a high-strength, in particular resistant to punctures, elastic or semi-elastic cushion of the pontoon 2, for example made of polyurethane. The cushion can be filled with compressed air and when filled, it provides adequate buoyant force. The level of filling defines the displacement of the cassette 1, which is equal to the difference between the buoyant force and the dead weight of the cassette 1. Therefore, the displacement of the cassette pontoon bridge, as well as its draught, can be varied by varying the level of filling of individual cassettes 1.
  • The lids of the split bottom 3 are opened by means of change of pressure inside the cushion of the pontoon 2, during operation of the filing system, and can be easily closed by means of the spring mechanism 4 aided by the net 6 extended within the compartment 9 of the cassette 1, which also folds the cushion of the pontoon 2 into the cassette 1. The pontoon 2, during the operation of filling, opens by means of its pressure both lids of the split bottom 3 aside and stretches the net 6 attached to the lids, as shown in Fig. 4. The opened lids in the working position, as shown in Fig. 3, are used as ballistic cover of the cassette pontoon bridge for military applications. To provide adequate ballistic cover, the lids of the split bottom 3 are made of reinforced material. When air is released, the pontoon 2 is folded by the elastic net 6, which pulls it inside the cassette 1. The open lids of the split bottom 3 protect the cushion of the pontoon 2 at its sides from damage.
  • An important element of the cassette 1 of the cassette pontoon bridge is the elastic net 6 extending between the lids of the split bottom 3. Both lids of the split bottom 3, when ajar, are opened by the pontoon 2 during use of the filling system. The net 6 keeps the lids of the split bottom 3 in a proper position and limits the lids from extensive opening. Therefore, the elastic net 6 is configured to limit the maximum opening of the movable lids of the split bottom 3. As seen in the figures, the elastic net 6 is configured to keep the bottom part of the pontoon substantially above the bottom edges of the movable lids of the split bottom 3.
  • Therefore, the cassette pontoon bridge according to the invention is to be understood as an object formed by any assembly of individual cassettes having configurations and dimensions equal to the multiple of dimensions of the individual cassettes shown in the drawings. The cassette pontoon bridge may be used to form floating bridges, floating footbridges, floating platforms, floating wharfs, floating jetties, ferries or rafts.
  • The cassette pontoon bridge can be used to form stationary and temporary objects. It can be used in many public, commercial, tourist, recreational or amusement applications. However, it is particularly useful for military applications, as well as during natural or building disasters. In particular, the possibility of positioning of the cassette pontoon bridge below the water surface (the crossing camouflage) is particularly useful for military applications.
  • The objects formed of individual cassettes of the cassette pontoon bridge may also function as temporary crossing, in place of stationary crossing objects which have been damaged or broken. The cassette pontoon bridge may be also used as a substitute crossing during repairs and conservation of stationary crossing objects and other elements of water infrastructure. The crossing may be two-way.
  • The possibility of arbitrary forming of the dimensions and configuration of the cassette pontoon bridge is achieved by full repeatability and variable displacement of individual cassettes. The cassettes can be re-used for many assembly and disassembly operations. The leak-tightness and displacement can be guaranteed for various exploitation conditions. The cassettes are highly susceptible to damages and destruction, due to reinforced cushion of the pontoon and covers formed by the lids of the split bottom. All of the above increases the possible applications of the cassette pontoon bridge. The displacement of the cassette pontoon bridge may be regulated, as it depends on the level of filling of the pontoons with compressed air.
  • The constructional features of the cassettes provide easy transport of a higher number of cassettes in small cargo space, quick assembly of long runs of the cassette pontoon bridge and compact construction due to foldable pontoon. This allows easy storage and transport of the elements of the system. Due to simple construction and small number of elements, the assembly of fully functional floating objects can be achieved by sparse crew without special training.

Claims (15)

  1. A cassette for a pontoon bridge, the cassette (1) comprising:
    - a main compartment (9),
    - a pontoon (2) having an elastic cushion installed in the main compartment (9),
    - a split bottom (3) of the main compartment (9) with movable lids configured to open under pressure of the extending pontoon (2) when the pontoon (2) is inflated such as to allow extension of the pontoon (2) outside the main compartment (9).
  2. The cassette according to claim 1, wherein the movable lids of the split bottom (3) are further configured to close and fold the pontoon (2) into the main compartment (9) when the pontoon (2) is deflated.
  3. The cassette according to any of claims 1-2, wherein each of the movable lids of the split bottom (3) is connected with the main compartment (9) by hinges with a spring mechanism (4) configured to bias the movable lids to closed position.
  4. The cassette according to any of previous claims, wherein the split bottom (3) is a two-lid bottom comprising two movable lids installed opposite each other.
  5. The cassette according to any of previous claims, further comprising an elastic net (6) attached to the movable lids of the split bottom (3) and configured to keep the bottom part of the pontoon substantially above the bottom edges of the movable lids of the split bottom (3).
  6. The cassette according to any of previous claims, wherein the elastic net (6) is further configured to limit the maximum opening of the movable lids of the split bottom (3).
  7. The cassette according to any of previous claims, wherein the main compartment (9) is made of lightweight plastics.
  8. The cassette according to any of previous claims, wherein the main compartment (9) is joined with a roadway surface (7) for moving vehicles.
  9. The cassette according to any of previous claims, further comprising connectors (8) for connecting the cassette (1) with other cassettes (1).
  10. The cassette according to any of previous claims, wherein the pontoon (2) is inflatable with an inflating system having pressure connectors (5) for connecting the inflating system with inflating systems of other cassettes (1).
  11. The cassette according to any of previous claims, wherein the movable lids of the split bottom (3) are made of reinforced material to provide ballistic cover for the pontoon (2).
  12. The cassette according to any of previous claims, wherein the cushion of the pontoon (2) is made of punctrure-resistant, reinforced elastic or semi-elastic material.
  13. A pontoon bridge formed of a plurality of the cassettes (1) according to any of claims 1-11.
  14. The pontoon bridge according to claim 13, wherein a plurality of cassettes (1) are connected with connectors (8) limiting the range of movement between the cassettes (1).
  15. The pontoon bridge according to claim 13 or 14, wherein a plurality of cassettes have an inflating system for inflating the pontoons (2) and wherein the inflating systems of the cassettes (1) are connected together with pressure connectors (5).
EP20100461514 2009-05-06 2010-05-05 A sectional pontoon bridge Active EP2251255B1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PL38873909A PL388739A1 (en) 2009-05-06 2009-05-06 Caisson pontoon bridge
EP20100461514 EP2251255B1 (en) 2009-05-06 2010-05-05 A sectional pontoon bridge

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
PL38873909A PL388739A1 (en) 2009-05-06 2009-05-06 Caisson pontoon bridge
EP20100461514 EP2251255B1 (en) 2009-05-06 2010-05-05 A sectional pontoon bridge

Publications (3)

Publication Number Publication Date
EP2251255A2 true true EP2251255A2 (en) 2010-11-17
EP2251255A3 true EP2251255A3 (en) 2011-08-17
EP2251255B1 EP2251255B1 (en) 2013-05-01

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ID=42635023

Family Applications (1)

Application Number Title Priority Date Filing Date
EP20100461514 Active EP2251255B1 (en) 2009-05-06 2010-05-05 A sectional pontoon bridge

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EP (1) EP2251255B1 (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2570551A2 (en) * 2011-06-17 2013-03-20 Wojskowa Akademia Techniczna im. Jaroslawa Dabrowskiego A cassette of a floating bridge
CN103993555A (en) * 2013-02-20 2014-08-20 朱培池 Air inflation pontoon bridge
CN104195935A (en) * 2014-08-04 2014-12-10 中冶天工上海十三冶建设有限公司 Pontoon working face device used for constructing buildings in water
CN105113381A (en) * 2015-09-07 2015-12-02 田玉海 Inflatable floating bridge
US9688364B1 (en) * 2013-03-15 2017-06-27 Patriot3, Inc. Modular floatable dock section, dock assembly, and method for constructing a dock assembly

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU178523U1 (en) * 2017-10-13 2018-04-06 Лев Георгиевич Делюсто Pontoon bridge

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL158579B2
PL297453A1

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2079688A5 (en) * 1970-02-10 1971-11-12 Hir J P Le
GB8919663D0 (en) * 1989-08-31 1989-10-11 White S New Designs Ltd Improved buoyant structure suitable for floating bridges

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
PL158579B2
PL297453A1

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2570551A2 (en) * 2011-06-17 2013-03-20 Wojskowa Akademia Techniczna im. Jaroslawa Dabrowskiego A cassette of a floating bridge
EP2570551A3 (en) * 2011-06-17 2016-07-20 Wojskowa Akademia Techniczna im. Jaroslawa Dabrowskiego A cassette of a floating bridge
CN103993555A (en) * 2013-02-20 2014-08-20 朱培池 Air inflation pontoon bridge
US9688364B1 (en) * 2013-03-15 2017-06-27 Patriot3, Inc. Modular floatable dock section, dock assembly, and method for constructing a dock assembly
CN104195935A (en) * 2014-08-04 2014-12-10 中冶天工上海十三冶建设有限公司 Pontoon working face device used for constructing buildings in water
CN105113381A (en) * 2015-09-07 2015-12-02 田玉海 Inflatable floating bridge

Also Published As

Publication number Publication date Type
EP2251255A3 (en) 2011-08-17 application
EP2251255B1 (en) 2013-05-01 grant

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