EP0475853B1 - Transportsystem für einen Brückenteil zur Überwindung von Gräben und System zum Ablegen eines Brückenteils von einem Fahrzeug - Google Patents

Transportsystem für einen Brückenteil zur Überwindung von Gräben und System zum Ablegen eines Brückenteils von einem Fahrzeug Download PDF

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Publication number
EP0475853B1
EP0475853B1 EP91402449A EP91402449A EP0475853B1 EP 0475853 B1 EP0475853 B1 EP 0475853B1 EP 91402449 A EP91402449 A EP 91402449A EP 91402449 A EP91402449 A EP 91402449A EP 0475853 B1 EP0475853 B1 EP 0475853B1
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EP
European Patent Office
Prior art keywords
bridging element
launching
launching beam
span
axis
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EP91402449A
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English (en)
French (fr)
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EP0475853A1 (de
Inventor
Nicolas Godot
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CNIM Groupe SA
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Constructions Industrielles de la Mediterrane CNIM SA
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    • 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
    • E01D15/127—Portable or sectional bridges combined with ground-supported vehicles for the transport, handling or placing of such bridges or of sections thereof

Definitions

  • the present invention relates to a system for transporting on a road vehicle, such as a truck, at least one bridging span intended for crossing a breach and for depositing the span above the breach from the vehicle. .
  • EP-A-O 374 019 discloses a system making it possible in particular to deposit a short span or longer length after assembly of two short span from a vehicle.
  • this known system involves the use of a very large number of actuating cylinders, the points of articulation of which to the vehicle undergo relatively large forces during the lifting of a span and the pivoting of a front portion of the support structure of the span.
  • this known system does not allow effective recovery of the forces due to the overhang of the span when it is deposited on the breach to be crossed, especially in the case where the span is very long.
  • the known system has a relatively complex structure and operation.
  • EP-A-0 362 065 describes a system comprising the characteristics set out in the preamble of claim 1.
  • the present invention aims to eliminate the above drawbacks of known systems by proposing a system as defined in the preamble of claim 1 and which is characterized in that it comprises a main beam supporting the tilting and mounted plate on the vehicle chassis movable in translation along the longitudinal axis of the vehicle to a position of extension of the vehicle increasing the lever arm to take up the forces resulting from the cantilevered positions of the span and of the beam launch.
  • the main beam is supported by a corset beam fixed to the chassis of the vehicle and is positively driven in a guided manner in translation on the corset beam.
  • the span is guided bilaterally relative to the launching beam during its movements controlled by a guide assembly with rollers and corresponding guide rails moving on the rollers.
  • the guide rails are fixed to the span and the rollers are fixed to the launching beam.
  • the means for driving the span on the launching beam comprise an electric motor secured to the launching beam and two parallel lateral racks secured to the span on which respectively mesh two driving pinions driven by the rotary shaft of the electric motor.
  • the two aforementioned racks are fixed directly respectively to the two guide rails, each with a cross section in a coated U shape.
  • the drive beam drive means comprise an electric motor fixed under the tilting plate, a rack fixed longitudinally under the launch beam and a motor pinion driven by the rotary shaft of the motor and meshing the rack.
  • the launching beam is assembled to the tilting plate by a dovetail guide while the main beam is assembled to the corset beam also by a dovetail guide.
  • the drive means of the main beam comprise an electric motor secured to the corset beam, a rack fixed longitudinally under the main beam and a drive pinion driven by the rotary shaft of the engine and meshing with the rack.
  • the means for orienting the tilting plate comprise on the one hand at least one element for retaining the tilting plate at a certain distance from the axis. for tilting the tray and a control member for the retainer operable to either pull the retainer and rotate the tilting tray counterclockwise, or release the retainer to allow the span structure - launching beam - tilting plate to pivot freely around the tilting axis clockwise and on the other hand a counter-plate device pivoting around the tilting axis of the tilting and exercising plate a pushing force under the tilting plate to maintain the latter in particular in the approximately horizontal position for supporting the span.
  • the counter-plate device comprises two arms pivoting about the aforementioned tilting axis and two actuating members, preferably with hydraulic cylinders, acting respectively on the two ends of the actuating arms to press them under the tilting plate.
  • the span comprises two parallel substantially parallelepipedal caissons defining two upper raceways and two spouts mounted articulated respectively at the two ends of each caisson about a transverse articulation axis and controlled so that each spout occupies a position folded down on the box and continuity of the latter, a deployed position in extension of the box allowing vehicles to access and leave the tracks smoothly once the span is deposited above the breach to cross.
  • the two end nozzles located on the same side respectively of the two boxes of the span are controlled simultaneously by a control device comprising a motor driving two coaxial shafts extending transversely to the launching beam by crossing respectively the two side walls of the latter, a double rod cylinder secured to the launching beam being able to drive the two shafts mounted to slide between a retracted position inactive and an active positive drive position of two maneuvering forks pivotally mounted on the outer sides respectively of the two boxes of the span around an axis close to the axis of articulation of the spouts and each engaged with an external axis integral with the corresponding spout, the slots occupying a lying position in the deployed position of the spouts and a raised position approximately perpendicular to the tracks in the folded position of the spouts.
  • the two aforementioned shafts each have at their end a square drive endpiece engaging in the active position in a rotary sleeve of conjugate shape passing through the wall or internal flank of a box and mounted at the end of a rotary shaft arranged transversely in the box and driving the pivot axis of the corresponding fork by means of a transmission with sprockets and belts or chains arranged at the end of the box.
  • the guide rails are fixed respectively to the internal walls or flanks facing the two caissons of the span so that the launching beam is disposed between the two caissons of the span and the end spouts comprise rails guide fixed to the internal walls of the spouts and extending from the guide rails of the boxes when in the deployed position.
  • the system further includes another span or lower span on which rests, in the transport position, the aforementioned span or upper span and which can be either deposited over another gap after removal of the upper span, or coupled and mechanically locked to the upper span as an extension of that -this to form a span of great length, which is then deposited on a corresponding breach to be crossed.
  • the lower span rests at its rear end close to the cabin of the vehicle on a fixed support structure with sliding pads secured to the corset beam and at its front end on a device for lifting the lower beam fixed to the corset beam and comprising a part forming a lifting arm pivoting about a transverse fixed axis of the corset beam, which part forming an arm comprises at least one support roller for the lower span.
  • the aforementioned lifting device is controlled so that the arm portion lifts the front end of the lower span when the upper span is cantilevered on the launching beam and inclined at the same angle as that of the span lower by orientation of the tilting plate so that the lower span is in alignment with the upper span which is then moved on the launching beam towards the lower span to mate and mechanically lock it, the launching beam then being straightened by the plate tilting in approximately horizontal position to which the end spouts of the large span are deployed, which large span is then moved on the launching beam in a cantilevered position to which the tilting plate is driven in the direction schedule for the removal of the large span.
  • the launching beam is brought into the cantilever position, the lifting device is controlled so that the arm part raises the front end of the span lower, the tilting plate is oriented so that the launching beam and the lower span are aligned, the launching beam is returned to the transport position to engage its rollers in the guide rails of the lower span, the beam main is moved to the extended position by carrying with it the lower span supported by the launching beam which is then straightened by the tilting plate to an approximately horizontal position, the end spouts of the lower span are deployed and the span is brought in cantilever on the launching beam, and the tilting plate is driven clockwise for the removal of e the lower span on the other breach.
  • the launching beam comprises at least two pairs of front and rear rollers respectively and the pair of front rollers is mounted on a bogie device allowing angular movement of the rollers when removing the launching beam from the associated span deposited on the breach or when resuming the span.
  • the bogie-forming device comprises approach studs facilitating the positioning of the rollers in the guide rails of the span when in particular when the span is taken up on the ground.
  • Figure 1 shows the system according to the invention comprising a truck and the device for depositing at least one span over a breach to be crossed.
  • FIG. 2 is a top view along arrow II of FIG. 1.
  • Figure 3 is a sectional view along line III-III of Figure 2.
  • Figure 4 is a sectional view along line IV-IV of Figure 2.
  • Figure 5 is a sectional view along the line V-V of Figure 2.
  • Figure 6 is a sectional view along line VI-VI of Figure 2.
  • Figure 7 shows schematically with partial cutaway a span.
  • FIG. 8 is a top view along arrow VIII of FIG. 7.
  • Figure 9 is a partial perspective view with cutaway of the end of the span according to arrow IX of Figure 7, with the end nozzles in deployed position.
  • Figure 10 is a view identical to that of Figure 9 with the end noses folded down.
  • FIG. 11 is an enlarged view of the part circled in XI of FIG. 10.
  • Figure 12 is a top view with cutaway part of a launching beam.
  • FIG. 13 is a side view along arrow XIII in FIG. 12.
  • FIG. 14 is an enlarged view of the part circled in XIV of FIG. 13.
  • Figure 15 is a sectional view along line XV-XV of Figure 14.
  • Figure 16 is a sectional view along line XVI-XVI of Figure 12.
  • Figure 17 is a sectional view along line XVII-XVII of Figure 12.
  • FIG. 18 is an enlarged view along arrow XVIII of FIG. 13.
  • Figure 19 is a sectional view along line XIX-XIX of Figure 12.
  • Figure 20 is a perspective view from below of a tray - counter tray assembly.
  • Figure 21 is a sectional view along line XXI-XXI of Figure 20.
  • Figure 22 shows in perspective a main beam of the system of the invention.
  • FIG. 23 is a top view along arrow XXIII of FIG. 22.
  • Figure 24 is an enlarged sectional view along line XXIV-XXIV of Figure 22.
  • Figure 25 shows in perspective a corset beam of the system of the invention.
  • Figure 26 is a sectional view along line XXVI-XXVI of Figure 25.
  • Figure 27 is a perspective view of a device for lifting a lower span of the system of the invention.
  • Figure 28 is a perspective view of a support structure of the lower span.
  • Figure 29 shows in perspective a lateral stabilization foot of the truck when removing a span.
  • Figure 30 shows in perspective an anti-tilt base associated with an anti-tilt foot of the vehicle at the rear thereof.
  • Figures 31 (A) to 31 (0) show the different phases of assembling two short span structures to form a very long span and depositing the latter over a gap.
  • Figures 32 (A) to 32 (H) show the different phases of removal of an upper span.
  • Figures 33 (A) to 33 (N) show the different phases of removal of the lower span.
  • the reference 1 designates a truck for transporting two spans respectively upper 2 and lower 3 resting one on the other towards at least one breach to be crossed by vehicles for example military.
  • the truck 1 comprises a cabin 4 extended by a longitudinal chassis 5 supporting the system for removing the spans 2, 3.
  • this system comprises a corset beam 6 of rigid structure and U-shaped cross section covering the chassis 5 while being secured to it by any suitable means such as fixing screws (not shown) passing through the side walls of the beam 6 at the places symbolized in 7 in FIG. 25.
  • An electric motor 8 is fixed using fixing bolts 9 under the upper wall joining the side walls of the beam 6 and formed by lattice beams 10.
  • the motor 8 drives by its rotary shaft a motor pinion 11 protected from the outside by a casing 12 fixed under the upper wall 10.
  • the system further comprises a main beam 13 slidably mounted on the corset beam 6 along the longitudinal axis of the chassis 5 by a dovetail assembly, the stud 14 of which is machined on the upper wall 10 of the beam 6 and the mortise 15 is machined under the main beam 13.
  • a rack longitudinally 16 arranged along the longitudinal axis of the chassis 5 and under which the drive pinion meshes 11.
  • the main beam 13 consists of a resistant U-shaped structure stiffened by transverse reinforcing bars 17.
  • a jack 18, of preferably hydraulic, is fixed to the bottom of the main beam 13 along the longitudinal axis thereof by fixing lugs 19 integral with the body of the jack 18, the rod 20 of which has its end connected in an articulated manner about an axis transverse to a part 21 forming the attachment head of two parallel chains or cables 22 extending along the beam 13 and whose roles will be explained later.
  • the part 21 is guided bilaterally along the longitudinal axis of the beam 13 by guide angles 23 secured, for example by welding, to the side walls of the beam 13.
  • the beam 13 supports, towards its front part opposite to the cabin 2 from truck 1, a shaft 24 disposed transversely between the two side walls of the beam 13 and journalling at its ends in bronze rings 25 integral with sockets 26 forming support bearings fixed through the side walls of the beam 13.
  • the sockets 26 are closed externally by covers 27.
  • Two pulleys 28 are fixed on the rotary shaft 24 and serve as pulleys upward at approximately 90 ° respectively from the two chains or cables 22.
  • the front end of the beam 13 is formed of two parallel plates 13a with raised bottom relative to the junction bottom of the side walls of the beam 13 and reinforced by two dihedral transverse plates 29.
  • the two plates 13a terminate respectively in two plates 13b approximately vertical to the plates 13a and supporting a transverse pivot axis 30 as will be described below.
  • the system further comprises a plate 31 which can tilt around the pivot axis 30 under the control of the jack 18 and of the chains or cables 22, the ends opposite to those fixed to the part 21 are fixed by two anchor points in double bracket 32 under the plate 31 and located at a certain distance from the pivot axis 30.
  • the latter is secured by its two ends to the support plates 13b of the beam 13 respectively in two fixing rings 33 integral with the plates 13b .
  • the plate 31 pivots around the central part of the axis 30 by means of lateral bronze rings 34 secured to the axis 30 coaxially with the latter.
  • the plate 31 is associated with a counter-plate device 35 which comprises two parallel arms 36 pivoting around the axis 30 by means of two bronze rings 37 integral with the axis 30 and disposed between the two rings 34 being adjacent to these.
  • the two arms 36 have their ends opposite the axis 30 connected in an articulated manner by yokes 38 respectively to the two ends of two rods 39 of two actuating cylinders 40 of the counter-plate device 35 and which act respectively on the two ends of the arm 36 for pressing them under the tilting plate 31.
  • the bodies of the jacks 40 are fixed to the external faces of the two plates 13a of the beam 13 by, for example, by means of fixing plates fixed to these external faces at the places symbolized by the reference 41.
  • a jack 42 has its body pivotally attached to the axis 30 at its central part between the rings 37 by means of a ball joint R and has its jack rod 43 hingedly connected to a base anti-tilting 44 by means of a yoke 45 integral with the base 44.
  • the base 44 further comprises two other yokes 46 to which are articulated respectively two rods 47 of lateral jacks to the 48 operating the anti-tilt foot constituted by the jack 42 and the base 44 and the actuator bodies of which are hingedly attached by fixing plates 49 to the external faces of the side walls of the beam 13.
  • the actuators 48 thus allow the pivoting of the anti-tilt foot between an inactive position stored in the beam 13 under the raised bottom between the plates 13a and an active vertical position where the rod 43 of the jack 42 presses the anti-tilting base 44 against the ground, the pivoting of the jack 42 taking place in the median vertical plane of the beam 13.
  • the tilting plate 31 is thus oriented on the one hand by the jack 18 pulling on the chains 22 or releasing them for the resumption of the maximum forces when the span (s) 2, 3 are cantilevered with the launching beam 50 , which will be described later, in the extended position and on the other hand by the two cylinders 40 of the device 35 when the forces are reversed (for example, when the launching beam 50 is in the storage position) and, in this case, these efforts, as well as the deflections of the plate 31 are limited.
  • the fact that the tilting plate 31 and the central jack 42 of the anti-tilt foot are mounted on the same axis of rotation 30 ensures good distribution of the forces during the launching phase of the spans 2, 3.
  • the launching beam 50 consists of a resistant structure preferably in a rectangular box and can be moved in translation in a guided manner on the tilting plate 31.
  • the beam 50 is assembled to the tilting plate 31 by a dovetail , whose tenon 51 is machined on the plate 31 and the mortise 52 is machined under the lower wall of the launching beam 50.
  • a rack 53 is fixed under this lower wall along the longitudinal axis of the beam 50.
  • An electric motor 54 is fixed under the tilting plate 31 and has its rotary shaft driving a motor pinion 55 protected from the outside by a protective casing 56 and passing through the plate 31 to mesh with the rack 53. The control of the motor 54 thus makes it possible to move the launching beam 50 relative to the plate 31 along the longitudinal axis of the chassis 5 of truck 1.
  • the beam 50 comprises two rear pairs of lateral guide or external rollers 57 with the two rollers 57 of each pair arranged coaxially on either side of the beam 50.
  • Each roller 57 is freely rotatably mounted on a support axis 58 fixed perpendicularly to the corresponding side wall of the beam 50.
  • a bronze anti-friction ring 59 is interposed between the roller 57 and the axis 58.
  • the roller 57 is moreover held in position on the axis 58 by two shoulders opposites 60 of the latter.
  • the beam 50 furthermore comprises two other front pairs of guide or external lateral rollers 61 with the two rollers 61 of each pair arranged coaxially on either side of the beam 50.
  • the two rollers 61 of the most pair in front are each rotatably mounted on a support axis 62 by means of a bronze anti-friction ring 63, the axis 62 being integral with a side plate 64 perpendicular to the latter.
  • the two rollers 61 of the other pair are rotatably supported respectively on two axes 62 integral with the two side plates 64, which are each more pivotally mounted relative to the corresponding side wall of the beam 50 by an axis 65 integral with the plate 64 and passing through the side wall of the beam 50.
  • Each axis 65 is freely rotatably mounted in a bronze ring 66 integral with the side wall of the beam 50 and is retained in this wall by a flange 67 at the end of the axis 65.
  • the plates 64 can thus pivot relative to the walls lateral of the beam 50 by the axes 65 so as to constitute a bogie-forming device allowing an angular movement of the pairs of rollers before 61 during the final phase of depositing the spans 2, 3 or the resumption of these on the ground.
  • Each side plate 64 is moreover equipped at its front end with an external transverse stud 68 intended to facilitate the positioning of the rollers 61 in guide rails during the initial stages of recovery of the bridges 2, 3 on the ground.
  • the end of the plate 64 has a bias cut as shown in FIG. 14. It should be noted that the beam 50 also has its end having a bias cut in order to avoid any interference from the beam 50 with the ground after removing a short or long span span.
  • the launching beam 50 also includes an electric motor 69 intended to drive in translation a span relative to the beam 50.
  • the motor 69 is housed in the beam 50 and has two opposite coaxial axes of outlet 69a respectively passing through the two side walls of the beam 50 and each carrying a driving pinion 70.
  • the motor 69 is fixed to the upper wall of the beam 50 by fixing lugs 71.
  • the two lateral driving pinions 70 mesh respectively on two racks 72 arranged symmetrically to the longitudinal axis of the chassis 5 of the truck 1 and integral with a span 2, 3.
  • the beam 50 also includes a device 73 for maneuvering the end nozzles 74 of the span 2, 3, which will be detailed below, and which comprises two opposite coaxial axes 75 movable along an axis orthogonal to the longitudinal axis of the chassis 5 of the truck 1 by a jack 76 with two rods 77, the two ends of which are coupled respectively to two lateral arms 78 integral with the axes 75 perpendicularly to these.
  • the axes 75 each comprise a grooved part 75a housed in an internally grooved sleeve 79 rotatably supported in a casing 80 fixed under the upper wall of the beam 50.
  • each axis 75 is extended by a drive part 81 crossing the corresponding side wall of the beam 50 and ending with a square drive end piece 82, the connection of an arm 78 to the axis 75 being substantially in the junction portion between the grooved part 75a and the part d drive 81.
  • a pinion with straight teeth 83 is fixed on the middle portion of the sleeve 79 perpendicularly to the latter and meshes with another lower pinion with straight teeth 84 secured to an axis 85 rotatably supported in the lower part of the casing 80 parallel to the sleeve 79.
  • the axis 85 supports at its two ends respectively two pinions 86 driven by two chains or drive belts 87 is wound t respectively on two lateral motor pinions 88 integral with an output shaft of a drive motor 89 fixed under the upper wall of the beam 50.
  • the motor 89 thus makes it possible to rotate the sleeve 79 and therefore the axes 75, which then occupy the active position shown in dotted lines in FIG. 19 where the square end pieces 82 are housed respectively in two holes of conjugate shape of two sleeves 90 each mounted to rotate in the span 2, 3.
  • the movement of the axes 75 between a inactive position retracted in FIG. 19 and the active position is of course allowed thanks to the grooved parts 75a under the control of the jack 76.
  • the two spans 2, 3 are of identical structures and are thus each formed of two parallelepipedic caissons 91 paired by a spacer plate 92 flush with the upper walls of the caissons 91, which form tracks of vehicle rolling.
  • the track of each box 91 is extended at its ends by a downward track at each end of which is articulated around a transverse axis a spout 74, the upper wall of which is an extension of the downward track in the deployed position. beak.
  • the access spouts 74 are thus configured to facilitate vehicle access to the tracks when in the deployed position or to allow vehicles to smoothly leave the tracks.
  • Each spout 74 can be folded down and locked on the corresponding downward path of the box so as to ensure the continuity of the box 91.
  • a shaft 93 is rotatably supported by a stirrup 94 fixed in the corresponding box 91 at the bottom of the latter.
  • the shaft 93 extends transversely in the box 91 in extension of the sleeve 90 which crosses the internal side wall of the box 91.
  • the shaft 93 comprises, integral with the latter, a pinion 95 driving, by means of a chain or a toothed belt C1, another pinion 96 secured to a shaft 97 parallel to the shaft 93 and rotatably supported on a stirrup 98 also fixed to the bottom of the box 91.
  • a third pinion 99 is fixed to the rotary shaft 97 and drives, by the intermediary of a chain or a toothed belt C2 extending in the box forming the downward rolling track substantially over the entire length thereof, a fourth pinion 100 secured to a rotary axis 101 parallel to the shaft 93 and located behind the pivot axis of the corresponding access spout 74, if we consider FIG. 9.
  • the axis 101 is rotatably supported in a support bearing 102 , for example through ball bearings, extending from the external lateral wall of the casing 91 towards the interior thereof.
  • the axis 101 ends with a square end piece 101a projecting externally and engaged in a conjugate square hole produced through an external fork 103 between the fingers 104 from which is engaged an axis or pin 105 integral with the external face of the external lateral wall of the spout 74.
  • the axis 105 is disposed at a certain distance from the pivot axis of the corresponding spout 74 so as to be kept constantly in engagement between the fingers 104 of the fork 103 whatever the position, folded down or deployed, of the spout 74.
  • the pinions 95, 96, 97 and 100 form a reduction allowing the deployment or the folding down of each spout 74 according to relatively low forces.
  • the corresponding fork 103 occupies a substantially elongated or lying position while in the folded position of the spout 74, the fork 103 occupies a position approximately perpendicular to the raceway of the casing 91 and of maintaining the corresponding spout 74 in the folded position.
  • Each span 2, 3 from the start of the launch phase of the latter, is supported by the launch beam 50 by the rollers 57 and 61 on which move two guide rails 106, each with a U-shaped cross section. elongated, respectively secured to the two internal side walls facing two twin boxes 91.
  • the two guide rails 106 are arranged symmetrically in the vertical median plane of a span.
  • the boxes 91 of each span are thus arranged on either side of the launching beam 50 to translate all along the latter without interference.
  • the racks 72 are preferably fixed directly and respectively on the two guide rails 106.
  • the end nozzles 74 also include guide rails 107 fixed to the two internal lateral walls facing two spouts located on the same side, on which racks 108 are fixed directly, the rails 107 having their bevelled ends in order to facilitate the 'engagement and disengagement of the rollers 57, 61 in and these rails.
  • the rails 107 are in extension of the rails 106 so as to obtain a continuous rail all along the span.
  • the rails 107 do not hinder the passage of the launching beam 50.
  • the two span 2 and 3 can be mechanically coupled and locked end to end to form a span of greater length.
  • the locking device ensuring the end-to-end coupling of two spans consists of the same locking device intended to rigidly fix each spout of a span, for example 2, in the deployed position and comprises a latch assembly consisting of first aligned transverse locking axes 109 secured to the front face 74a of a spout 74 in the folded position and locking hooks 110 of the axes 109 secured to the front face 91a of the box 91 (see FIG.
  • the axes 109 and the locking hooks 110 projecting on the same side from the front faces 74a and 91a.
  • the axes 109 engage automatically in the locking hooks 110, the unlocking of which can be carried out manually by maneuvering an unlocking lever 111 simultaneously controlling the hooks 110.
  • the coupling and locking of two spans takes place when the spouts 74 are in the folded position.
  • the front face 74a of each spout 74 of the span 3 comprises the locking hooks 110 in which will engage the locking pins 109 of the span 2 while the front face 91a of each box 91 of the span 3 comprises the locking pins 109 engaging in the locking hooks 110 of the front face 91a of the box 91 of the span 2 .
  • the lower span 3 rests near its rear end close to the cab 4 of the truck 1 on a fixed support structure 112 formed of lattice beams 113 defining a horizontal support platform fixed on two parallel angles support 114 in inverted L fixed, by welding or bolting, to the side walls of the corset beam 6 at the locations referenced by 115.
  • the support platform of the structure 112 comprises a certain number, in this case four, of pads fixed sliding 116 extending parallel along the longitudinal axis of the chassis 5 of the truck 1 and allowing the lower span 3 to slide during its translation relative to the support structure 112. Stops 117 integral with the structure 112 are provided respectively at the ends of the sliding shoes 116 in order to prevent the lower span 3 from hitting the cab 4 of the truck 1 when sque the front of span 3 is raised.
  • the front end of the lower span 3 rests on a lifting device 118 comprising two support plates 119 approximately in the shape of an inverted T fixed by their heads respectively to the side walls of the corset beam 6 at the locations one of which is designated by 120.
  • the ends of the legs of the support plates 119 support an axis 121 arranged transversely to the longitudinal axis of the chassis 5 and serving as pivoting for a part forming a lifting arm 122 in the form of an approximately isosceles triangle plate with lattice beams, the base of which comprises two stirrups 123 for supporting respectively two spaced transverse rollers 124 on which the lower span 3 bears.
  • the pivoting of the part forming the lifting arm 122 is controlled by two lateral jacks 125, the rods of which are connected swivel under the part 122 and the bodies are fixed to the two side walls of the pou be corset 6 by means of fixing plates 126 fastened to locations, one of which bears the reference 127 in FIG. 25.
  • Figures 4 and 5 show the locations of the support plates 119 and control cylinders 125 such that the main beam 13 can move in translation without being hindered by, or interfere with any other element of the system.
  • Two feet 127 for lateral stabilization of the truck 1 are hingedly attached around a vertical axis to the two side walls of the corset beam 6 by means of two fixing plates 128 secured to the corset beam 6 at locations respectively, one of which is indicated at 129 in FIG. 25.
  • Each foot 127 has an L-shaped part 130, the large leg of which carries, at its end opposite the articulated leg to the plate 128, a vertical cylinder 131, the rod 132 of which is hingedly attached around a horizontal axis to a base 133 bearing on the ground. The connection of the rod 132 to the base 133 takes place by a yoke 134.
  • the truck 1 transports the two spans to the place where the breach B is to be crossed and approaches it in reverse to the location shown in Figure 31 (A).
  • the lower span 3 rests on the support structure 112 and the lifting device 122 while the upper span 2, still in engagement with the launching beam 50, rests on the lower span 3 due to the loosening of the pressure in the hydraulic cylinders 18, 40 orienting the tilting plate 31, it being understood that in the launching phase, the pressurization of the cylinders 40 slightly raises the upper span 2 which then rests entirely on the launching beam 50 and does not is thus more in contact with the lower span 3.
  • the feet 127 for lateral stabilization are put in place and the main beam 13 is moved relative to the corset beam 6 towards the breach B by supplying the motor 8 which rotates the motor pinion 11 in gear with the rack 16.
  • the main beam 13 drives with it the upper span 2 resting on the launch beam 50 as shown in Figure 31 (B).
  • the beam 13 then occupies an extension position of the chassis 5 increasing the lever arm for resumption of the forces resulting from the later cantilevered positions of the span and of the launching beam 50.
  • the anti-tilt foot is put in vertical position by successively supplying the hydraulic cylinders 48 and 42, as shown in Figure 31 (C).
  • FIG. 31 (D) represents the span 2 moved to a position where its rear end is substantially perpendicular to the rear end of the launching beam 50.
  • the launching beam 50 is then moved relative to the tilting plate 31 towards the breach B by feeding the motor 54 which drives the motor pinion 55 in engagement with the rack 53 of the beam 50.
  • This movement is carried out until the door position -to launch false beam 50 shown in Figure 31 (E), which also shows that the front spouts 74 of the span 2 were deployed by first supplying the cylinder 76 which moves transversely in opposite directions the two axes 75, whose square end pieces engage in the sleeves 90, then by supplying the electric motor 89 which simultaneously drives the two axes 75 in rotation so that the two transmissions with chains or belts C1, C2 tilt the two forks 103 from the vertical position to the lying position.
  • the jack 18 is then supplied so as to pull the chains or cables 22 in a direction making the tilting plate 31 pivot in the counterclockwise direction around the pivot axis 30.
  • the tilting of the plate 31 orients the span 2 as shown in Figure 31 (F).
  • the cylinders 125 of the device 118 are also supplied to rotate the part forming the lifting arm 122 anti-clockwise and thus raise the front of the lower span 3 to a position where it is in extension of the span upper inclined 2.
  • the electric motor 69 is supplied so that the drive pinions 70 move the upper span 2 relative to the beam 50 towards the cab 4 of the truck 1. This displacement allows the span 2 to be coupled and locked to the span 3 by engagement locking axes of span 2 to span 3 by engagement of the locking axes 110 of span 3 and locking axes 109 of span 3 in the locking hooks 110 of span 2.
  • This configuration is shown in Figure 31 (G).
  • the large span T thus formed is then moved on the launching beam 50 towards the breach B to a position where the transverse median plane of the span T is approximately coincident with that of the beam 50 as shown in FIG. 31 (H ).
  • the beam 50 and span T assembly is brought to a substantially horizontal position as shown in FIG. 31 (I) by tilting the plate 31 clockwise using the jack 18, the rod 20 of which is outlet to a corresponding release position of the chains or retaining cables 22.
  • the plate 31 is then tilted clockwise using the jack 18 and the chains or cables 22 until the cantilevered end of the span T comes to bear on the edge of the breach B opposite that on the side of truck 1 as shown in Figure 31 (K).
  • the launching beam 50 is then slightly moved on the plate 31 towards the cab 4 of the truck 1 so as to release the two pairs of rollers 57 from the guide rails 107 as shown in FIG. 31 (L).
  • the launching beam 50 is tilted completely clockwise by tilting the plate 31 using the jack 18 and chains or cables 22 in order to bring the end of the span T in contact with the edge of breach B located on the side of the truck, as shown in Figure 31 (M).
  • the anti-tilt foot 42, 43 is then folded back in the stowed position in the main beam 13 which is brought back to the transport storage position on the corset beam 6, which has the effect of releasing the pairs of rollers 61 from the span 50 guide rails 107 of the span T as shown in Figure 31 (N).
  • the span 50 is then brought back to a horizontal position by tilting anti-clockwise the plate 31 and is moved on the plate 31 to the cab 4 of the truck 1 to be in the transport position shown in Figure 31 (O ).
  • the span T is thus deposited on the breach B to allow vehicles, such as tanks, military trucks or other motorized vehicles to cross the breach B.
  • Figures 32 (A) to 32 (H) show the different phases enabling the upper span 2 to be removed only on the gap B.
  • the principle of removing this span is identical to that described with reference to Figures 31 (A) - (O), whose phases (A) to (D) have not been repeated in FIG. 31.
  • the phases of assembly of the two upper 2 and lower 3 spans have been omitted. It is therefore not necessary to describe in detail the phases shown in Figures 32 (A) - (H) which are self-explanatory.
  • Figures 33 (A) - (N) show the principle of depositing the lower span 3 on a second breach B after the upper span (2) has been previously deposited on a first breach B or on the second breach to allow the passage of it for a larger number of vehicles.
  • the launching beam 50 is moved into a cantilevered launching position relative to the main beam 13, as is shown in Figure 33 (A).
  • the beam 50 and the lower span 3 are aligned by tilting the plate 31 counterclockwise using the jack 18 and the cables or retaining chains 22 and lifting the front of the span 3 by the lifting device 118.
  • the launching beam 50 is then moved on the tilting plate 31 towards the cab 4 of the truck 1 and therefore towards the storage position, which has the effect of engaging the rollers 57, 61 of the beam 50 in the guide rails 106, 107 of the span 3 (see figure 33 (B), (C).
  • the main beam 13 is moved relative to the corset beam 6 towards the breach B by driving with it the span 3 supported by the launching beam 50, as shown in Figure 33 (D).
  • Figure 33 (E) shows the positioning of the anti-tilt foot 42, 43 while Figure 33 (F) shows the beam 50 and span 3 assembly in the horizontal upright position using the plate 31 controlled by the jack 18 and the chains or cables 22.
  • the beam 50 and span 3 assembly is moved in translation on the plate 31 towards the breach B to a launching position in cantilever as shown in FIG. 33 (G).
  • the system according to the invention described above is of relatively simple structure and operation compared to the system described in EP-0 374 019 in the name of the applicant.
  • the corset beam 6 supports the whole system for transporting spans and removing it, it is the only element to be adapted on a truck to allow this assembly to be mounted on another truck. identical structure. This feature makes it easy to equip all standard trucks that can be used to transport and remove spans.
  • the various electric motors used in the system of the invention can be replaced by hydraulic motors or any other suitable type of motor.

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  • Engineering & Computer Science (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Structural Engineering (AREA)
  • Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
  • Intermediate Stations On Conveyors (AREA)
  • Manipulator (AREA)
  • Conveying And Assembling Of Building Elements In Situ (AREA)
  • Handcart (AREA)
  • Unwinding Of Filamentary Materials (AREA)
  • Replacing, Conveying, And Pick-Finding For Filamentary Materials (AREA)
  • Automobile Manufacture Line, Endless Track Vehicle, Trailer (AREA)

Claims (26)

  1. System zum Transport auf einem Strassenfahrzeug, wie einem Lastkraftwagen (1) von wenigstens einem zur Überschreitung eines Grabens (B) bestimmten Überbrückungsteil (2;3) und zum Ablegen des Brückenteiles (2;3) über dem Graben (B) von dem Fahrzeug (1) aus, mit einem etwa entlang der Längsachse des Fahrzeuges (1) angeordneten Balken zum Tragen und zum Vorschieben (50) des Brückenteiles (2;3), der im Verhältnis zu dem Fahrzeug entlang dieser Achse zwischen einer unwirksamen Stellung auf dem Fahrzeug und einer im Verhältnis zu dem Fahrzeug (1) freitragend überhängenden Vorschubstellung bewegbar ist, in welcher Vorschubstellung der Brückenteil (2;3) ebenfalls in eine im Verhältnis zum Vorschiebebalken (50) freitragend vorstehenden Stellung auf dem Vorschiebebalken (50) in geführter Weise gemäss einer Translationsbewegung positiv bewegt wird, welcher Vorschiebebalken, in diesen freitragend auskragenden Stellungen, um eine waagerechte ortsfeste Achse (30) herum schwingen kann, bis der Brückenteil (2;3) zuerst mit seinem freitragend überhängenden Ende an demjenigen Rand des Grabens (B), der dem zum Fahrzeug (1) hin gelegenen Rand entgegengesetzt ist, und dann mit seinem entgegengesetzten Ende an dem zum Fahrzeug (1) hin gelegenen Grabenrand zur Abstützung kommt, wobei der Vorschiebebalken (50) von dem Brückenteil (2;3) ausgerückt wird, welcher somit auf den Graben (B) aufgelegt wird, wobei der Vorschiebebalken (50) durch eine um eine ortsfeste Achse (30) herum kippende ausrichtbare Platte (31) getragen wird und somit gemäss einer Translationsbewegung auf der kippbaren Platte (31) in geführter Weise positiv angetrieben wird, dadurch gekennzeichnet, dass das System einen die ausrichtbare Platte (31) tragenden Hauptbalken (13) umfasst, der an dem Untergestell (5) des Fahrzeuges (1) in gemäss einer Translationsbewegung entlang der Längsachse des Fahrzeuges (1) bis zu einer von dem Fahrzeug ab ausgefahrenen Stellung verstellbaren Weise angeordnet ist, welche den Hebelarm zur Aufnahme der sich aus den freitragend überhängenden Stellungen des Brückenteiles (2;3) und des Vorschiebebalkens (50) ergebenden Kräfte vergrössert.
  2. System nach Anspruch 1, dadurch gekennzeichnet, dass der Hauptbalken (13) durch einen an dem Untergestell (5) des Fahrzeuges (1) befestigten Einlagebalken (6) getragen wird und gemäss einer Translationsbewegung auf dem Einlagebalken (6) in geführter Weise positiv angetrieben wird.
  3. System nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der Brückenteil (2;3) im Verhältnis zum Vorschiebebalken (50) während seinen durch eine Einheit mit Führungsfahrtrollen (57, 61) und sich auf den Rollen verschiebenden Führungsschienen (106, 107) gesteuerten Verschiebungen beiderseitig geführt wird.
  4. System nach Anspruch 3, dadurch gekennzeichnet, dass die vorgenannten Führungsschienen (106, 107) an dem Brückenteil (2;3) befestigt sind und die Fahrtrollen (57, 61) an dem Vorschiebebalken (50) befestigt sind.
  5. System nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Mittel zum Antrieb des Brückenteiles (2;3) auf dem Vorschiebebalken (50) einen mit dem Vorschiebebalken (50) fest verbundenen elektrischen Motor (69) und zwei mit dem Brückenteil (2;3) fest verbundene parallele Seitenzahnstangen (72, 108) mit welchen jeweils zwei durch die Drehwelle des elektrischen Motors (69) angetriebene Antriebsritzel (70) kämmen, umfassen.
  6. System nach Anspruch 5, dadurch gekennzeichnet, dass die beiden vorgenannten Zahnstangen (72, 108) jeweils unmittelbar an den beiden vorgenannten Führungsschienen (106, 107), jeweils mit einem Querschnitt in der Gestalt eines umgelegten U's befestigt sind.
  7. System nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Mittel zum Antrieb des Vorschiebebalkens (50) einen unterhalb der kippbaren Platte (31) befestigten elektrischen Motor (54), eine in Längsrichtung unterhalb des Vorschiebebalkens (50) befestigte Zahnstange (53) und ein durch die Drehwelle des Motors (54) angetriebenes und mit der Zahnstange (53) kämmendes Antriebsritzel (55) umfassen.
  8. System nach einem der Ansprüche 2 bis 7, dadurch gekennzeichnet, dass der Vorschiebebalken (50) durch eine schwalbenschwanzförmige Führung (51, 52) mit der kippbaren Platte (31) zusammengebaut ist, während der Hauptbalken (13) ebenfalls durch eine schwalbenschwanzförmige Führung (14, 15) mit dem Einlagebalken (6) zusammengebaut ist.
  9. System nach einem der Ansprüche 2 bis 8, dadurch gekennzeichnet, dass die Mittel zum Antrieb des Hauptbalkens (13) einen an dem Einlagebalken (6) fest angebrachten elektrischen Motor (8), eine in Längsrichtung unterhalb des Hauptbalkens (13) befestigte Zahnstange (16) und ein durch die Drehwelle des Motors (8) angetriebenes und mit der Zahnstange (16) kämmendes Antriebsritzel (11) umfassen.
  10. System nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die Mittel zur Ausrichtung der kippbaren Platte (31) einerseits wenigstens ein Element (22) zum Zurückhalten der Platte (31), wie ein Drahtseil oder eine Kette, das bzw. die unterhalb der kippbaren Platte (31) in einem gewissen Abstand von der Kippachse (30) der Platte (31) befestigt ist und ein Glied (18) zur Steuerung des Zurückhalteelementes, das betätigt werden kann, entweder um an dem Zurückhalteelement (22) zu ziehen und die kippbare Platte (31) in den Gegenuhrzeigersinn zu verschwenken oder das Zurückhalteelement (22) loszulassen, um dem Gesamtaufbau aus Brückenteil (2;3), Vorschiebebalken (50) und kippbaren Platte (31) zu gestatten, um die Kippachse (30) herum im Uhrzeigersinn frei zu schwenken und andererseits eine um die Kippachse (30) der kippbaren Platte (31) herum schwenkbare Plattenwiderlagervorrichtung (35), die eine Schubkraft unter der kippbaren Platte (31) ausübt, um die letztere insbesondere in einer ungefähr waagerechten Lage zum Tragen des Brückenteils (2;3) hält, umfassen.
  11. System nach Anspruch 10, dadurch gekennzeichnet, dass die Plattenwiderlagervorrichtung (35) zwei um die Kippachse (30) herum schwenkbaren Arme (36) und zwei jeweils auf die beiden Enden der Arme (36) einwirkende Betätigungsglieder (40), um diese Enden unter der kippbaren Platte (31) anzudrücken, umfasst.
  12. System nach Anspruch 11, dadurch gekennzeichnet, dass das vorgenannte Betätigungsglied (18) ein hydraulischer Kraftzylinder ist, dessen Körper an dem Hauptbalken (13) befestigt ist und dessen Stange (20) mit dem Zurückhalteelement (22) verbunden ist, welches sich in Längsrichtung des Hauptbalkens (13) erstreckt und zu der kippbaren Platte (31) durch eine Umlenkrolle (28) zurückgeführt wird.
  13. System nach Anspruch 11, dadurch gekennzeichnet, dass die beiden vorgenannten Betätigungsglieder hydraulische Kraftzylinder (40) sind, deren Körper an dem Hauptbalken (13) befestigt sind und deren Stangen mit den vorgenannten Betätigungsarmen (36) verbunden sind.
  14. System nach einem der vorangehenden Ansprüche , dadurch gekennzeichnet, dass der Brückenteil (2;3) zwei zwei obere Fahrbahnen bestimmende parallele etwa quaderförmige Zwillingskastenträger (91) und zwei jeweils an den beiden Enden jedes Kastenträgers (91) um eine Quergelenkachse herum gelenkig angeordnete Auffahrtsrampenausleger (74) umfasst, die derart betätigt werden, dass jeder Auffahrtsrampenausleger (74) entweder eine auf den Kastenträger (91) zurückgeklappte und den stetigen Verlauf desselben gewährleistende Stellung oder eine in Verlängerung des Kastenträgers (91) ausgefahrene Stellung einnimmt, welche den Fahrzeugen gestattet, zu den Fahrbahnen Zugang zu haben und diese sanft zu verlassen, ist einmal der Brückenteil (2;3) über den zu überschreitenden Graben (B) abgelegt worden.
  15. System nach Anspruch 14, dadurch gekennzeichnet, dass die beiden auf einer selben Seite jeweils der beiden Kostenträger des Brückenteiles (2;3) gelegenen Endauffahrtsrampenausleger (74) durch eine Steuervorrichtung gleichzeitig betätigt werden, die einen zwei sich quer zu dem Vorschiebebalken (50) erstreckende und jeweils die beiden Seitenwände desselben durchsetzende koaxiale Wellen (75) antreibenden Motor (89), einen mit dem Verschiebebalken (50) fest verbundenen Kraftzylinder mit Doppelstange (76), umfasst, der die beiden gleitbar angeordneten Wellen (75) zwischen einer unwirksamen eingezogenen Stellung und einer wirksamen Stellung zum positiven Antrieb von zwei Betätigungsgabeln (103) antreiben kann, welche an den Aussenseiten jeweils der beiden Kastenträger (91) um eine nahe der Gelenkachse der Auffahrtsrampenausleger (74) herum schwenkbar angeordnet und jeweils mit einer mit dem entsprechenden Auffahrtsrampenausleger (74) fest verbundenen äusseren Achse (105) im Eingriff sind, wobei die Gabeln (103) eine liegende Stellung in der ausgefahrenen Stellung der Auffahrtsrampenausleger (74) und eine zu den Fahrbahnen etwa senkrechte hochgerichtete Stellung in der zurückgekappten Stellung der Auffahrtsrampenausleger (74) einnehmen.
  16. System nach Anspruch 15, dadurch gekennzeichnet, dass die beiden vorgenannten Wellen jeweils einen vierkantigen Antriebsansatzstummel (82) haben, der in wirksamer Stellung in eine die innere Wand bzw. Seite eines Kastenträgers (91) durchsetzende und am Ende einer in dem Kastenträger (91) quer angeordneten Drehwelle (93) gelagerte Drehhülse entsprechender formschlüssiger Gestalt (90) eingreift, welche Drehhülse den Schwenkzapfen der entsprechenden Gabel (103) über eine am Ende des Kastenträgers (91) angeordnete Kraftübertragung mit Zahnrädern (91, 96, 99, 100) und Riemen bzw. Ketten (C1, C2) antreibt.
  17. System nach den Ansprüchen 3 und 4 und einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass die vorgenannten Führungsschienen (106) jeweils an den einander gegenüberliegenden inneren Wänden bzw. Seiten der beiden Kastenträger (91) des Brückenteiles (2;3) derart befestigt sind, dass der Vorschiebebalken (50) zwischen den beiden Kastenträgern (91) liegt und dass die Endauffahrtsrampenausleger (74) an den inneren Wänden derselben befestigte und in Verlängerung der Führungsschienen (106) der Kastenträger (91), wenn sie in der ausgefahrenen Stellung sind, kommenden Führungsschienen (107) umfassen.
  18. System nach Anspruch 17, dadurch gekennzeichnet, dass die Führungsschienen (107) der Auffahrtsrampenausleger (74) abgefaste Enden haben, um das Ineingriffkommen oder das Aussereingriffkommen der Schienen mit den Fahrtrollen (57, 61) zu erleichtern.
  19. System nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass es einen anderen Brückenteil (3) bzw. unteren Brückenteil, auf welchem der vorgenannte Brückenteil (2) bzw. obere Brückenteil in der Beförderungsstelle ruht, umfasst, welcher entweder auf einen Graben nach Ablegung des oberen Brückenteiles abgelegt werden kann oder mit dem oberen Brückenteil (2) in Verlängerung desselben mechanisch gekuppelt und verriegelt werden kann, um einen Brückenteil grosser Länge (T), der sodann auf einen entsprechenden zu überschreitenden Graben abgelegt wird, zu bilden.
  20. System nach Anspruch 19, dadurch gekennzeichnet, dass der untere Brückenteil (3) an seinem der Kabine (4) des Fahrzeuges (1) nahen hinteren Ende auf einem ortsfesten Tragaufbau (112) mit mit dem Einlagebalken (6) fest verbundenen Gleitkufen (116) und an seinem Vorderende auf einer an dem Einlagebalken (6) befestigten Vorrichtung (118) zum Abheben des unteren Brückenteiles (3) aufruht, welche einen um einen quer zum Einlagebalken (6) verlaufenden ortsfesten Zapfen (121) herum schwenkbaren einen Hebearm bildenden Teil (122) umfasst, welcher Teil (122) wenigstens eine Rolle (124) zur Abstützung des unteren Brückenteiles (3) aufweist.
  21. System nach Anspruch 20, dadurch gekennzeichnet, dass die Anhebevorrichtung (118) derart betätigt wird, dass der einen Arm bildenden Teil (122) das Vorderende des unteren Brückenteiles (3) anhebt, wenn der obere Brückenteil (2) freitragend überhängend auf dem Vorschiebebalken (50) ist, welcher um denselben Winkel, wie derjenige des unteren Brückenteiles (3) durch Betätigung der kippbaren Platte (31) geneigt ist, damit der untere Brückenteil (3) mit dem oberen Brückenteil (2) fluchtend ausgerichtet ist, der sodann auf dem Vorschiebebalken (50) zu dem unteren Brückenteil (3) hin verschoben wird, um sich an diesem anzukuppeln und mechanisch zu verriegeln und dass der Vorschiebebalken (50) sodann durch die kippbare Platte (31) in einer ungefähr waagerechten Stellung aufgerichtet wird, in welcher Auffahrtsrampenausleger (74) des grossen Brückenteiles (T) ausgefahren sind und der grosse Brückenteil (T) sodann auf dem Vorschiebebalken (50) in eine freitragend auskragende Stellung bewegt wird, in welcher die kippbare Platte (31) in dem Uhrzeigersinn zum Ablegen des grossen Brückenteiles (T) angetrieben wird.
  22. System nach den Ansprüchen 19 und 20, dadurch gekennzeichnet, dass, um nur den unteren Brückenteil (3) abzulegen, der Vorschiebebalken (50) in die freitragend überhängende Stellung gebracht wird die Anhebevorrichtung (118) derart gesteuert wird, dass der einen Arm bildende Teil (122) das Vorderende des unteren Brückenteiles (3) anhebt ; die kippbare Platte (31) ausgerichtet ist, damit der Vorschiebebalken (50) und der untere Brückenteil (3) fluchtend ausgerichtet sind ; der Vorschiebebalken (50) in die Transportstellung zurückgebracht wird, um seine Fahrtrollen (57, 61) mit den Führungsschienen (106, 107) des unteren Brückenteiles (3) in Eingriff zu bringen ; der Hauptbalken (13) in die ausgefahrene Stellung verschoben wird und mit ihm den durch den Vorschiebebalken (50) getragenen unteren Brückenteil (3) mitnimmt, welcher sodann durch die kippbare Platte (31) in eine ungefähr waagerechte Stellung aufgerichtet wird; Auffahrtsrampenausleger (74) des unteren Brückenteiles (3) ausgefahren werden und der Brückenteil in die freitragend überhängende Stellung auf dem Vorschiebebalken (50) gebracht wird ; und die kippbare Platte (31) in dem Uhrzeigersinn zum Ablegen des unteren Brückenteiles (3) über den entsprechenden Graben (B) angetrieben wird.
  23. System nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass der Vorschiebebalken (50) wenigstens zwei Paar Fahrtrollen und zwar ein hinteres Fahrtrollenpaar (57) und ein vorderes Fahrtrollenpaar (61) umfasst und das Fahrtrollenpaar (61) an einer ein Drehgestell bildenden Vorrichtung (64) angeordnet ist, welche eine Winkelausschlagbewegung der Rollen (61) während des Rückzuges des Vorschiebebalkens (50) des über dem Graben abgelegten zugeordneten Brückenteiles oder während der Wiederaufnahme des Brückenteiles gestattet.
  24. System nach Anspruch 23, dadurch gekennzeichnet, dass die vorgenannte ein Drehgestell bildende Vorrichtung Annäherungszapfen (68) umfasst, welche das Instellungbringen der Fahrtrollen (61) in den Führungsschienen des Brückenteiles (2;3), während insbesondere der Wiederaufnahme des Brückenteiles vom Boden ab erleichtern.
  25. System nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass es ein um den vorgenannten mit dem Hauptbalken (13) fest verbundenen Schwenkzapfen (30) herum schwenkbares kippwidriges Bein (42, 43) umfasst, das an dem Boden durch eine angelenkte kippwidrige Grundplatte (44) teleskopisch zur Abstützung kommt, wobei das kippwidrige Bein in den Hauptbalken (13) in unwirksamer Abstellage einziehbar ist.
  26. System nach einem der vorangehenden Ansprüche, dadurch gekennzeichnet, dass es zwei an dem Hauptbalken (13) in schwenkbarer Weise befestigte Streben (127) zur Seitenstabilisierung umfasst.
EP91402449A 1990-09-14 1991-09-13 Transportsystem für einen Brückenteil zur Überwindung von Gräben und System zum Ablegen eines Brückenteils von einem Fahrzeug Expired - Lifetime EP0475853B1 (de)

Applications Claiming Priority (2)

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FR9011410A FR2666772B1 (fr) 1990-09-14 1990-09-14 Systeme de transport d'au moins une travure de pontage destinee au franchissement d'une breche et de depose de la travure au-dessus de la breche a partir d'un vehicule.
FR9011410 1990-09-14

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EP0475853A1 EP0475853A1 (de) 1992-03-18
EP0475853B1 true EP0475853B1 (de) 1995-03-15

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AT (1) ATE119960T1 (de)
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FR2502659A1 (fr) * 1981-03-27 1982-10-01 Haulotte Atel Const A Dispositif de pontage entierement automatique
DE3320633A1 (de) * 1983-06-08 1984-12-13 Dornier System Gmbh, 7990 Friedrichshafen Brueckenlegegeraet
FR2637301B1 (fr) * 1988-09-30 1990-11-16 France Etat Armement Engin poseur de ponts du type comportant au moins deux travures superposees sur un chassis
DE3837122C2 (de) * 1988-11-02 1997-09-11 Krupp Foerdertechnik Gmbh Verfahren zum Zusammenbauen einer zerlegbaren Brücke auf einem Fahrzeug
FR2640208B1 (fr) * 1988-12-13 1991-03-29 Mediterranee Const Navale Indl Systeme de transport et de depose d'au moins une travure d'un vehicule tel qu'un engin blinde du genie

Also Published As

Publication number Publication date
FR2666772A1 (fr) 1992-03-20
DE69108150D1 (de) 1995-04-20
ATE119960T1 (de) 1995-04-15
EP0475853A1 (de) 1992-03-18
DE69108150T2 (de) 1995-10-19
FR2666772B1 (fr) 1994-05-06

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