EP0435741B1 - Light transportable bridge element for surmounting gaps - Google Patents
Light transportable bridge element for surmounting gaps Download PDFInfo
- Publication number
- EP0435741B1 EP0435741B1 EP19900403658 EP90403658A EP0435741B1 EP 0435741 B1 EP0435741 B1 EP 0435741B1 EP 19900403658 EP19900403658 EP 19900403658 EP 90403658 A EP90403658 A EP 90403658A EP 0435741 B1 EP0435741 B1 EP 0435741B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- sections
- modules
- crossing structure
- structure according
- gaps
- 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.)
- Expired - Lifetime
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- 230000000295 complement effect Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- 239000002131 composite material Substances 0.000 claims description 4
- 230000002441 reversible effect Effects 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 3
- 238000005452 bending Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 210000000056 organ Anatomy 0.000 description 2
- 238000004026 adhesive bonding Methods 0.000 description 1
- 238000004873 anchoring Methods 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 230000008094 contradictory effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
- E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
- E01D15/00—Movable or portable bridges; Floating bridges
- E01D15/12—Portable or sectional bridges
- E01D15/133—Portable or sectional bridges built-up from readily separable standardised sections or elements, e.g. Bailey bridges
Definitions
- the present invention relates to a light transportable span intended in particular for crossing breaches by so-called heavy vehicles, for example by armored vehicles.
- spans are generally either spans of the scissor type, or either simple spans in several abutable sections.
- the scissor-type span comprises two or three inseparable elements which develop in rotation in a vertical plane around the common axis of two elements.
- these spans can be placed either by means of an arrow or using a manipulator.
- the sections are transported in a superimposed manner with respect to each other, then moved in translation by a manipulator, which, after locking the sections, also serves for depositing the span thus formed .
- the assembly of the sections of the span is hitherto carried out by centering and connecting members formed for example by latches or still keys or else mechanical assemblies comprising a rack and ratchet device actuated by a pusher.
- the centering and connecting members used are often complicated to implement, given the dimensions and the weight of the sections.
- a light transportable span for crossing gaps comprising at least one pair of parallel sections and connected together to form a raceway, each section consisting of several identical modules. , reversible and interchangeable.
- the span comprises several pairs of sections placed end to end comprising means for connecting one section with the other placed opposite.
- the present invention therefore aims to propose a new type of simple span for crossing gaps allowing to reconcile the qualities of robustness, solidity, mechanical resistance to bending and lightness while fulfilling the function of ramp without additional provisions.
- the present invention therefore relates to a light transportable span for crossing gaps comprising at least one pair of parallel sections and interconnected to form a raceway, each section consisting of several identical, reversible and interchangeable modules, and the span comprising several pairs of sections placed end to end, comprising at each of their ends means for connecting a section with the other placed opposite, characterized in that the means of connection also form means for hooking on the banks of the breach allowing the passage of vehicles.
- the span shown in FIG. 1 consists of at least one pair of sections 1, the sections of each pair being interconnected by crosspieces 2.
- a single pair of sections 1 can be used or several pairs of sections 1 can be placed end to end to form at least one raceway allowing the passage of vehicles.
- Section 1 is made up of several modules 10a, 10b, 10c ... juxtaposed and joined together by suitable means, not shown.
- Each module 10a, 10b, 10c ... has a general parallelepiped shape whose upper face has a continuous curved profile to form the general slope of each section.
- Each section 1 has at each of its ends hooking means.
- each module 10a, 10b, 10c ... is provided at one of its ends for example 11a, 11b, 11c ... with a projecting part 12a, 12b, 12c ... and, at the opposite end, for example 13a, 13b, 13c ..., of a housing 14a, 14b, 14c ... of shape complementary to said projecting part.
- the modules 10a, 10b, 10c ... are juxtaposed in opposite directions with respect to each other, then assembled by suitable means not shown, so as to form a succession of projecting parts and housings .
- the sections 1 comprise at each end a succession of projecting parts and housings offset relative to those of the end of the other section placed opposite.
- All modules 10a, 10b, 10c ... are therefore identical, reversible, and interchangeable with each other.
- a single pair of sections 1 can be used or several pairs of sections 1 can be placed end to end.
- the protruding parts 12a, 12b, 12c form hooking means on the banks of the breach.
- projecting parts 12a, 12b, 12c provide the functions of stability, anchoring on the ground and perfect continuity of the curved profile of the span.
- the bridges used up to now consist, in general, of three pairs of inseparable sections and this in order to produce a "bridge" whose general shape is taken up in the present application by a single pair of sections 1.
- the protruding parts 12a, 12b, 12c ... and the housings 14a, 14b, 14c ... form interlocking members of several pairs of section 1 placed opposite one another.
- connecting means 12a, 12b, 12c ... and 14a, 14b, 14c ... make it possible to be able to use a number of pairs of sections 1 corresponding to dimensions of the breach to be crossed.
- the modules 10a, 10b, 10c ... can be produced by molding in a light material of low density, high resistance and of low thickness such as a composite material.
- a single type of mold is sufficient to produce all of the modules and to assemble said modules, for example by gluing, in opposite directions with respect to each other to form a section.
- the number of juxtaposed modules is therefore easily modifiable depending on the width of the raceway that one wishes to obtain.
- This arrangement therefore makes it possible to produce modular spans of great length and of high strength having a volume-to-weight ratio as low as possible.
- the spans according to the invention also have qualities of robustness, mechanical solidity and resistance to bending and have a very particular aptitude for the speed of laying, but also a lightness facilitating their transport and their implementation.
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- Engineering & Computer Science (AREA)
- Architecture (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Bridges Or Land Bridges (AREA)
- Conveying And Assembling Of Building Elements In Situ (AREA)
- Road Paving Structures (AREA)
Description
La présente invention a pour objet une travure transportable légère destinée notamment au franchissement de brèches par des engins dits lourds par exemple par des engins blindés.The present invention relates to a light transportable span intended in particular for crossing breaches by so-called heavy vehicles, for example by armored vehicles.
Le franchissement de brèches ou autres passages entre deux bords surélevés par des engins dits lourds réclame des travures présentant non seulement une aptitude toute particulière à la rapidité de pose, mais aussi une légèreté facilitant leur transport et leur mise en oeuvre.The crossing of breaches or other passages between two raised edges by so-called heavy equipment requires spans having not only a very particular aptitude for the speed of installation, but also a lightness facilitating their transport and their implementation.
Ces impératifs de légèreté et de maniabilité sont contradictoires avec les qualités de robustesse, de solidité mécanique et de résistance à la flexion, compte tenu du poids des engins pouvant utiliser ces travures.These imperatives of lightness and maneuverability are contradictory with the qualities of robustness, mechanical solidity and resistance to bending, taking into account the weight of the machines that can use these spans.
Ces travures sont généralement soit des travures du type en ciseaux, ou soit des travures simples en plusieurs tronçons aboutables.These spans are generally either spans of the scissor type, or either simple spans in several abutable sections.
Les travures de type en ciseaux comprennent deux ou trois éléments indissociables qui se développent en rotation dans un plan vertical autour de l'axe commun de deux éléments.The scissor-type span comprises two or three inseparable elements which develop in rotation in a vertical plane around the common axis of two elements.
Après déploiement, ces travures peuvent être déposées soit au moyen d'une flèche, soit à l'aide d'un manipulateur.After deployment, these spans can be placed either by means of an arrow or using a manipulator.
Ces travures de type en ciseaux ont pour principal inconvénient le fait que, lors du déploiement ou de la dépose, la travure s'élève à une hauteur telle qu'elle est facilement détectable par les moyens d'observations ennemis. D'autre part, le système d'articulation et de déploiement alourdit considérablement l'ensemble, ce qui oblige à limiter la portée, car les efforts sur le système de déploiement en porte à faux deviennent trop importants.The main disadvantage of these scissor-type structures is that, during deployment or removal, the structure rises to a height such that it is easily detectable by means of enemy observations. On the other hand, the articulation and deployment system considerably increases the overall weight, which means that the range has to be limited, since the efforts on the cantilever deployment system become too great.
Dans le cas d'une travure simple, les tronçons sont transportés d'une manière superposée les uns par rapport aux autres, puis déplacés en translation par un manipulateur, qui, après verrouillage des tronçons, sert également à la dépose à la travure ainsi formée.In the case of a single span, the sections are transported in a superimposed manner with respect to each other, then moved in translation by a manipulator, which, after locking the sections, also serves for depositing the span thus formed .
Jusqu'à présent, les travures simples sont généralement formées par des poutrelles métalliques soudées de grande section ou par des structures en treillis, si bien que le poids des travures est important ce qui ne facilite pas leur mise en place.Up to now, simple spans are generally formed by welded metal beams of large section or by lattice structures, so that the weight of spans is important which does not facilitate their installation.
Or, on sait que le temps de manipulation en chargement et en déchargement et les manoeuvres diverses de mise en place sont des facteurs prépondérants notamment dans le cadre d'opérations rapides.However, it is known that the handling time during loading and unloading and the various installation maneuvers are predominant factors, particularly in the context of rapid operations.
De plus, l'assemblage des tronçons de la travure est jusqu'à présent réalisé par des organes de centrage et de liaison formés par exemple par des verrous ou encore des clavettes ou encore des ensembles mécaniques comprenant un dispositif à crémaillère et à cliquets actionnés par un poussoir.In addition, the assembly of the sections of the span is hitherto carried out by centering and connecting members formed for example by latches or still keys or else mechanical assemblies comprising a rack and ratchet device actuated by a pusher.
Les organes de centrage et de liaison utilisés sont souvent compliqués à mettre en oeuvre compte tenu des dimensions et du poids des tronçons.The centering and connecting members used are often complicated to implement, given the dimensions and the weight of the sections.
On connaît également dans le brevet US-A-4 200 946, une travure transportable légère pour le franchissement de brèches comprenant au moins une paire de tronçons parallèles et reliés entre eux pour former un chemin de roulement, chaque tronçon se composant de plusieurs modules identiques, réversibles et interchangeables. La travure comprend plusieurs paires de tronçons placées bout à bout comportant des moyens de liaison d'un tronçon avec l'autre placé en regard.Also known in US Pat. No. 4,200,946 is a light transportable span for crossing gaps comprising at least one pair of parallel sections and connected together to form a raceway, each section consisting of several identical modules. , reversible and interchangeable. The span comprises several pairs of sections placed end to end comprising means for connecting one section with the other placed opposite.
Mais, ce type de travure nécessite des moyens supplémentaires d'accrochage sur les rives de la brèche pour le passage libre de véhicules de la rive sur la travure et inversement afin de remplir la fonction de rampe d'accès.However, this type of span requires additional means of attachment to the banks of the breach for the free passage of vehicles from the shore over the span and vice versa in order to fulfill the function of an access ramp.
La présente invention a donc pour but de proposer un nouveau type de travure simple pour le franchissement de brèches permettant de concilier les qualités de robustesse, de solidité, de résistance mécanique à la flexion et de légèreté tout en remplissant la fonction de rampe d'accès sans dispositions supplémentaires.The present invention therefore aims to propose a new type of simple span for crossing gaps allowing to reconcile the qualities of robustness, solidity, mechanical resistance to bending and lightness while fulfilling the function of ramp without additional provisions.
La présente invention a donc pour objet une travure transportable légère pour le franchissement de brèches comprenant au moins une paire de tronçons parallèles et reliés entre eux pour former un chemin de roulement, chaque tronçon se composant de plusieurs modules identiques, réversibles et interchangeables, et la travure comprenant plusieurs paires de tronçons placées bout à bout, comportant à chacune de leurs extrémités des moyens de liaison d'un tronçon avec l'autre placé en regard, caractérisée en ce que les moyens de liaison forment également des moyens d'accrochage sur les rives de la brèche permettant le passage de véhicules.The present invention therefore relates to a light transportable span for crossing gaps comprising at least one pair of parallel sections and interconnected to form a raceway, each section consisting of several identical, reversible and interchangeable modules, and the span comprising several pairs of sections placed end to end, comprising at each of their ends means for connecting a section with the other placed opposite, characterized in that the means of connection also form means for hooking on the banks of the breach allowing the passage of vehicles.
Selon d'autres caractéristiques de l'invention :
- les moyens de liaison sont formés par des organes d'emboîtement de forme complémentaire,
- les organes d'emboîtement sont formés à l'une extrémité du module par une partie en saillie, et à l'extrémité opposée, par un logement de forme complémentaire à ladite partie en saillie,
- les modules sont réalisés par moulage,
- les modules sont réalisés en un matériau léger de faible densité, de.haute résistance et de faible épaisseur,
- le matériau léger de faible densité et de haute résistance est un matériau composite.
- the connection means are formed by interlocking members of complementary shape,
- the interlocking members are formed at one end of the module by a projecting part, and at the opposite end, by a housing of shape complementary to said projecting part,
- the modules are produced by molding,
- the modules are made of a material light with low density, high resistance and low thickness,
- the light material of low density and high resistance is a composite material.
L'invention sera mieux comprise à l'aide de la description qui va suivre donnée uniquement à titre d'exemple et faite en se référant aux dessins annexés sur lesquels :
- la Fig. 1 est une vue de dessus d'une paire de tronçons parallèles d'une travure selon l'invention,
- la Fig. 2 est une vue en perspective de deux modules d'un tronçon d'une travure selon l'invention.
- Fig. 1 is a top view of a pair of parallel sections of a span according to the invention,
- Fig. 2 is a perspective view of two modules of a section of a span according to the invention.
La travure représentée à la Fig. 1 se compose d'au moins une paire de tronçons 1, les tronçons de chaque paire étant reliés entre eux par des traverses 2.The span shown in FIG. 1 consists of at least one pair of
Pour le franchissement de brèches, une seule paire de tronçons 1 peut être utilisée ou plusieurs paires de tronçons 1 peuvent être placées bout à bout pour former au moins un chemin de roulement permettant le passage de véhicules.For crossing gaps, a single pair of
Le tronçon 1 se compose de plusieurs modules 10a, 10b, 10c...juxtaposés et solidarisés entre eux par des moyens appropriés non représentés.
Chaque module 10a, 10b, 10c... affecte une forme générale parallélépipédique dont la face supérieure présente un profil courbe continu pour former la pente générale de chaque tronçon.Each
Chaque tronçon 1 comporte à chacune de ses extrémités des moyens d'accrochage.Each
A cet effet, chaque module 10a, 10b, 10c...est pourvu à l'une de ses extrémités par exemple 11a, 11b, 11c...d'une partie en saillie 12a, 12b, 12c...et, à l'extrémité opposée par exemple 13a, 13b, 13c..., d'un logement 14a, 14b, 14c...de forme complémentaire à ladite partie en saillie.For this purpose, each
Pour former un tronçon 1, les modules 10a, 10b, 10c...sont juxtaposés en sens inverse les uns par rapport aux autres, puis assemblés par des moyens appropriés non représentés, de façon à former une succession de parties en saillie et de logements.To form a
Ainsi, les tronçons 1 comportent à chaque extrémité une succession de parties en saillie et de logements décalés par rapport à ceux de l'extrémité de l'autre tronçon placé en regard.Thus, the
Tous les modules 10a, 10b, 10c...sont donc indentiques, réversibles, et interchangeables les uns avec les autres.All
Selon les dimensions de la brèche à franchir une seule paire de tronçons 1 peut être utilisée ou plusieurs paires de tronçons 1 peuvent être placées bout à bout.According to the dimensions of the breach to be crossed, a single pair of
Dans le cas d'une utilisation d'une seule paire de tronçons 1, les parties en saillie 12a, 12b, 12c...forment des moyens d'accrochage sur les rives de la brèche.In the case of using a single pair of
Ces parties en saillie 12a, 12b, 12c...assurent les fonctions de stabilité, d'ancrage sur le terrain et une continuité parfaite du profil courbe de la travure.These projecting
L'utilisation d'une seule paire de tronçons 1 est permise grâce aux différentes caractéristiques desdits tronçons 1. Il s'agit, d'une part, du profil du chemin de roulement qui est défini suivant une courbe allongée et, d'autre part, de l'aménagement des parties en saillie 12a, 12b, 12c...disposées à chaque extrémité des tronçons 1.The use of a single pair of
Cette possibilité est un avantage important.This possibility is an important advantage.
En effet, les travures utilisées jusqu'à présent se composent, en général, de trois paires de tronçons indissociables et ce pour réaliser un "pont" dont la forme générale est reprise dans la présente demande par une seule paire de tronçons 1.In fact, the bridges used up to now consist, in general, of three pairs of inseparable sections and this in order to produce a "bridge" whose general shape is taken up in the present application by a single pair of
Dans le cas d'une utilisation de plusieurs paires de tronçons 1 placées bout à bout, les parties en saillie 12a, 12b, 12c...et les logements 14a, 14b, 14c...forment des organes d'emboîtement de plusieurs paires de tronçon 1 placées en regard les unes des autres.In the case of the use of several pairs of
Ces moyens de liaison 12a, 12b, 12c...et 14a, 14b, 14c...permettent de pouvoir utiliser un nombre de paires de tronçons 1 correspondant aux dimensions de la brèche à franchir.These connecting means 12a, 12b, 12c ... and 14a, 14b, 14c ... make it possible to be able to use a number of pairs of
Les modules 10a, 10b, 10c...peuvent être réalisés par moulage en un matériau léger de faible densité, de haute résistance et de faible épaisseur tel qu'un matériau composite.The
Compte-tenu de la conception des modules, il suffit d'un seul type de moule pour réaliser l'ensemble des modules et d'assembler lesdits modules par exemple par collage, en sens inverse les uns par rapport aux autres pour former un tronçon.Given the design of the modules, a single type of mold is sufficient to produce all of the modules and to assemble said modules, for example by gluing, in opposite directions with respect to each other to form a section.
Le nombre de modules juxtaposés est donc facilement modifiable en fonction de la largeur du chemin de roulement que l'on désire obtenir.The number of juxtaposed modules is therefore easily modifiable depending on the width of the raceway that one wishes to obtain.
Cette disposition permet donc de réaliser des travures modulables de grande longueur et de haute résistance possédant un rapport volume-poids le plus faible possible.This arrangement therefore makes it possible to produce modular spans of great length and of high strength having a volume-to-weight ratio as low as possible.
Les travures selon l'invention possèdent également des qualités de robustesse, de solidité mécanique et de résistance à la flexion et présentent une aptitude toute particulière à la rapidité de pose, mais aussi une légèreté facilitant leur transport et leur mise en oeuvre.The spans according to the invention also have qualities of robustness, mechanical solidity and resistance to bending and have a very particular aptitude for the speed of laying, but also a lightness facilitating their transport and their implementation.
Claims (6)
- Light transportable crossing structure for the bridging of gaps, comprising at least one pair of parallel sections (1) connected to one another to form a runway, each section being composed of a plurality of identical, reversible and interchangeable modules (10a, 10b, 10c, etc), the crossing structure comprising a plurality of pairs of sections (1) placed end to end and possessing at each of their ends means (12a, 12b, 12c, etc) for connecting one section to the other located opposite, characterised in that the connecting means also form means (12a, 12b, 12c, etc) for catching on the edges of the gap, enabling vehicles to go across.
- Crossing structure according to Claim 1, characterised in that the connecting means are formed by interlocking members (12a, 12b, 12c, etc and 14a, 14b, 14c, etc) of complementary shape.
- Crossing structure according to claim 2, characterised in that the interlocking members are formed, at one of the ends of the module (10a, 10b, 10c, etc), by a projecting part (12a, 12b, 12c, etc) and, at the opposite end, by a receptacle (14a, 14b, 14c, etc) of a shape complementary to that of said projecting part.
- Crossing structure according to any one of the preceding claims, characterised in that the modules (10a, 10b, 10c, etc) are produced by moulding.
- Crossing structure according to any of the preceding claims, characterised in that the modules (10a, 10b, 10c, etc) are produced from a light material of low density, high resistance and small thickness.
- Crossing structure according to Claim 5, characterised in that the light material of low density and high resistance is a composite material.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8917193A FR2656353B1 (en) | 1989-12-26 | 1989-12-26 | LIGHT TRANSPORTABLE WORK FOR CROSSING BREACHES. |
| FR8917193 | 1989-12-26 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| EP0435741A1 EP0435741A1 (en) | 1991-07-03 |
| EP0435741B1 true EP0435741B1 (en) | 1993-02-10 |
Family
ID=9388963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP19900403658 Expired - Lifetime EP0435741B1 (en) | 1989-12-26 | 1990-12-18 | Light transportable bridge element for surmounting gaps |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0435741B1 (en) |
| JP (1) | JPH04261906A (en) |
| CA (1) | CA2033160A1 (en) |
| DE (1) | DE69000908T2 (en) |
| ES (1) | ES2040089T3 (en) |
| FR (1) | FR2656353B1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2701969B1 (en) * | 1993-02-25 | 1995-06-30 | Desvigne Claude Jean | MODULAR GATEWAY. |
| WO2012115751A1 (en) * | 2011-02-22 | 2012-08-30 | Ata Engineering, Inc. | A modular folding bridge system and its method of execution |
| CN102425102B (en) * | 2011-08-30 | 2013-08-07 | 四川加力机电有限公司 | Ship and bridge dual-purpose device |
| CN106758761A (en) * | 2016-12-12 | 2017-05-31 | 湖北华舟重工应急装备股份有限公司 | Assembled modularization bridge and application method |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2819405A1 (en) * | 1978-05-03 | 1979-11-08 | Dieter Knauer | Extensible boom for loading materials - comprises sliding sleeves with male and female portions each with ramp faces |
| US4200946A (en) * | 1978-11-16 | 1980-05-06 | Westland Aircraft Limited | Load-supporting structures |
| FR2570400B1 (en) * | 1984-09-18 | 1989-12-01 | Quacchia Gerard | GATEWAY FAST MOUNTING DEVICE |
| DE3535639A1 (en) * | 1985-10-05 | 1987-04-09 | Porsche Ag | Adjusting device |
-
1989
- 1989-12-26 FR FR8917193A patent/FR2656353B1/en not_active Expired - Lifetime
-
1990
- 1990-12-18 DE DE1990600908 patent/DE69000908T2/en not_active Expired - Fee Related
- 1990-12-18 EP EP19900403658 patent/EP0435741B1/en not_active Expired - Lifetime
- 1990-12-18 ES ES90403658T patent/ES2040089T3/en not_active Expired - Lifetime
- 1990-12-24 CA CA 2033160 patent/CA2033160A1/en not_active Abandoned
- 1990-12-26 JP JP41837090A patent/JPH04261906A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE69000908D1 (en) | 1993-03-25 |
| CA2033160A1 (en) | 1991-06-27 |
| FR2656353B1 (en) | 1992-07-24 |
| DE69000908T2 (en) | 1993-06-03 |
| FR2656353A1 (en) | 1991-06-28 |
| JPH04261906A (en) | 1992-09-17 |
| ES2040089T3 (en) | 1993-10-01 |
| EP0435741A1 (en) | 1991-07-03 |
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