EP0407274A1 - Brückensystem zur Überwindung von Gräben durch Fahrzeuge - Google Patents

Brückensystem zur Überwindung von Gräben durch Fahrzeuge Download PDF

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Publication number
EP0407274A1
EP0407274A1 EP90401873A EP90401873A EP0407274A1 EP 0407274 A1 EP0407274 A1 EP 0407274A1 EP 90401873 A EP90401873 A EP 90401873A EP 90401873 A EP90401873 A EP 90401873A EP 0407274 A1 EP0407274 A1 EP 0407274A1
Authority
EP
European Patent Office
Prior art keywords
spout
span
locking
supporting structure
folded
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
EP90401873A
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English (en)
French (fr)
Other versions
EP0407274B1 (de
Inventor
Henri Michel Maurice Aubert
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.)
CNIM Groupe SA
Original Assignee
Constructions Industrielles de la Mediterrane CNIM SA
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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Application filed by Constructions Industrielles de la Mediterrane CNIM SA filed Critical Constructions Industrielles de la Mediterrane CNIM SA
Priority to AT90401873T priority Critical patent/ATE87683T1/de
Publication of EP0407274A1 publication Critical patent/EP0407274A1/de
Application granted granted Critical
Publication of EP0407274B1 publication Critical patent/EP0407274B1/de
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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
    • 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
    • E01D15/124—Folding or telescopic bridges; Bridges built up from folding or telescopic sections

Definitions

  • the present invention relates to a bridging system intended in particular to allow military vehicles to cross breaches in particular.
  • the bridging systems used until now include a short span monolithic span for crossing a relatively small breach or a larger span monolithic span for crossing relatively large breaches.
  • the object of the present invention is to eliminate the above drawback by proposing a bridging system intended in particular to allow military vehicles to cross in particular breaches and characterized in that it comprises at least two identical spans which can be rigidly coupled end to end, each span comprising at least one resistant bearing structure with a rolling track in the upper part; two spouts mounted articulated respectively at the two ends of the support structure around a transverse articulation axis so that each spout occupies either a folded or folded position on the support structure, or a deployed position in extension of the support structure at which the spout is rigidly fixed by a locking device; a span, when used to cover a breach, having its two end spouts deployed forming an access spout rigidly fixed to the support structure and bearing respectively on the two opposite edges of the breach.
  • the device for locking each spout to the supporting structure comprises at least one latch consisting of first and second male and female means respectively integral with the spout and the supporting structure and located substantially at the same distance from on either side of the horizontal plane containing the axis of articulation relative to the support structure so that the first means can be locked in the second means in the deployed position of the spout.
  • two spans are rigidly coupled end to end, at their respective front faces each defined by a bent folded down on the corresponding carrying structure, by two locking devices integral respectively with the two spans at their ends respective, each locking device being constituted by the aforementioned locking device with at least one lock, the first and second means of the locking of the locking device at the end of one of the two spans engaging respectively with the second and first means of the lock of the locking device at the end of the other span when the two spans are coupled.
  • the first and second means of the latch at one end of a span are secured respectively to a spout and the support structure and the first and second means of the latch at the opposite end of the span are respectively secured to the support structure and on the other beak.
  • the first means of a lock is a transverse locking axis and the second means of this lock is a locking hook, the axis and the locking hook projecting on the same side of the corresponding front face of a span.
  • each span comprises at one of its ends a positioning foot and at its opposite end a positioning opening, the positioning foot of one span engaging in the positioning opening of another span when of the coupling of the two spans for their mutual positioning, the assembly foot-opening of positioning taking up the shearing forces resulting from the passage of vehicles on the tracks of the two spans coupled.
  • each spout has a general pyramid shape with rectangular cross section, two opposite faces of which are intended to serve as rolling tracks respectively in the folded and deployed positions of the spout which is articulated around the articulation axis mentioned above by a transverse side of the rectangular base of the spout.
  • each spout comprises two side walls forming wheel guides in the folded position of the spout on the support structure and retractable in the deployed position of the spout.
  • Each side wall forming a wheel guide slides freely relatively parallel to the corresponding side face of the pyramid spout so as to occupy the retracted position when the spout is deployed and a fixed service position when the spout is folded down on the supporting structure.
  • each aforementioned side wall is supported by gravity on an underlying side wall plug secured to the support structure and forming wheel guide in the deployed position of the spout.
  • the reference 1 designates a span according to the invention intended for crossing a breach of relatively small width.
  • the span 1 comprises two identical resistant load-bearing structures 2 extending longitudinally and interconnected by several rigid transverse link arms 3, only one of which is shown, and secured to each load-bearing structure 2 for example by welding.
  • Each support structure 2 comprises a lower part 2a forming a sole to which are fixed uprights 2b supporting an upper part forming a running track consisting of a horizontal central part 2c and two end portions 2d secured respectively to the two ends of the central portion 2c by extending the latter downwardly.
  • each support structure 2 is produced from a mechanically welded metal frame, the central parts 2c and extremes 2d forming a rolling track being formed from two parallel plates with triangulation of reinforcement between them . In order not to overload the figures, only one extreme part 2d has been shown.
  • Two identical spouts 4 are mounted articulated respectively at the two ends of a support structure 2 around a transverse articulation axis 5 so that each spout 4 occupies either a folded or folded position on the corresponding end portion 2d of the support structure 2 as shown in FIG. 4, that is to say a deployed position as an extension of the support structure 2 to which the spout 4 is rigidly fixed by a locking device 6 as shown in FIG. 5.
  • Each spout 4 has a general pyramid shape with a rectangular cross section, two opposite faces 4a and 4b of which are intended to serve as a rolling track respectively in the folded and deployed positions of the spout which is articulated around the axis of articulation 5 by a transverse side 4c of the rectangular base of the spout 4.
  • the face 4a of the spout 4 pr substantially extends horizontally the raceway of the central part 2c and, in the deployed position of the spout 4, the face 4b thereof extends the raceway of the end part 2d.
  • the transverse articulation axis 5 is in the form of an articulation hinge consisting of several spaced parts in the form of a yoke 7 with the two parallel branches 7a of each part 7 joined by fixing screws 8 at the end of the part extreme 2d of the structure 2.
  • a central part 7b disposed between two branches 7a of a part forming a yoke 7 is secured to the transverse side 4c of the spout 4 by fixing screws 9 and pivotally mounted between the two branches 7a around the articulation axis 5 formed by a transverse pivot axis 7c integral with the central part 7b and capable of rotating at its two free ends respectively in two slightly oblong bores 7d machined through the two branches 7a.
  • Support faces 10 are arranged on either side of the transverse axis 5 symmetrically thereto and above and below the yoke portions 7 in the folded position of the spout 4. These support faces 10 are machined on upper or lower parts or blocks 11 secured respectively to the ends of the end part 2d and of the transverse side 4c of the spout 4 by fixing screws 12 embedded in the blocks 11 perpendicular to the horizontal plane containing the transverse axis 5 and screwing under the branches 7a of the parts 7 for the lower blocks and on the other branches 7a for the upper blocks 11; square parts 11a coming to bear, once the screws 12 have been tightened, on corresponding shoulders of the ends of the part 2d of the structure 2 and of the transverse side 4c of the spout 4.
  • the blocks 11 are moreover fixed to the ends of the part 2d and on the transverse side 4c by fixing screws 12a, screwing in corresponding tapped holes of these ends perpendicular to the plane of FIG. 2 or of FIG. 3, the holes for the passage of the screws 12a through the blocks 11 bearing the reference 12b.
  • the device for locking a spout deployed 4 to the support structure 2 comprises several locks 6 each consisting of first 6a and second 6b respectively male and female means integral with the spout 4 and the support structure 2 and located, when a spout occupies the folded position, at the same distance on either side of the horizontal plane containing the articulation axis 5 of the spout relative to the support structure 2.
  • the first means 6a of the latches 6 are constituted by transverse coaxial locking axes integral with one end of a support structure 2 and spouts 4 assembly, on the upper transverse side 4d of a spout 4 opposite the lower transverse side 4c of this spout considering the spout 4 in the folded position and, at the opposite end of this assembly, of the lower part forming the sole 2a of the support structure 2.
  • the transverse axes 6a are housed respectively in longitudinal openings in form e of U 13 defined in the transverse side 4d of the spout 4 so that the axes 6a protrude from the front face 4e of the spout 4 defining the rectangular base thereof or in the front face 2a1 of the part 2a.
  • the second means of the locks 6 are constituted by aligned locking hooks 6b secured to the end of a carrier structure 2 - spouts 4 assembly, of the lower part forming sole 2a of the structure 2 and, at the opposite end of this assembly, on the upper transverse side 4d of the associated spout 4.
  • Each hook 6b is pivotally mounted in a longitudinal U-shaped opening 14 forming a yoke around an axis transverse 14a between an unlocked position and a locked position. As shown, for four locking hooks 6b with four locking pins 6a, these hooks are operated two by two respectively by two lateral levers, only the two levers 15 associated with the lower hooks 6b at the end of a support structure assembly 2 and spout 4 being shown.
  • Each lever 15 has its end opposite to the operating handle integral with the pivot axis 14a passing through two recesses forming yokes 14 while being secured to the two hooks 6b and is also integral with an intermediate portion between the operating handle and the end connected to the axis 14a, by a connecting bar 16 simultaneously driving the two hooks 6b to their unlocking or locking position by operating the lever 15.
  • the connecting bar 16 crosses two tabs 17 secured respectively to two hooks 6b.
  • the yoke portions 14 of the lower hooks 6b project from the front face 2e connecting the end of the part 2d to the corresponding end where the face 2a1 of the lower part 2a of the structure 2 and a same side as the upper transverse axes 6a, the 2nd and 4th faces forming the front face of a span.
  • the upper hooks 6b at the opposite end of the assembly of the supporting structure 2 and the spouts 4 protrude from the front face 4e of the other spout 4 on the same side as the lower transverse axes 6a.
  • One of the locking hooks of a pair of hooks 10b actuated concomitantly by a lever 15 is mechanically connected to a holding device 18 of the pair of hooks 6b either in its locked position or in its unlocked position.
  • This holding device 18 comprises two end brackets 19 and 20 fixed in an articulated manner respectively to the fastening tab 17 of a hook 6b and to a fixing tab 21 secured either to the front face 2e for the lower hooks 6b, or of the front face 4e for the upper hooks 6b.
  • the two stirrups 19 are assembled to one another by a screw 22 screwed into the rear wall connecting the branches of the stirrup 19 and the head 22a of which is held in abutment at the bottom of a part in the form of cup 23 by a pre-stressed compression spring 24 bearing between the rear face of the stirrup 19 and the external annular rim 23a of the cup 23 secured to the rear face of the stirrup 20.
  • the two hooks pivot together around the pivot axis 14a and cause the holding device 18 to pivot by its articulation stirrups in the direction indicated by the arrow F2 to a position where it keeps the two hooks in the unlocked position.
  • This holding device 18 also makes it possible to maintain a pair of hooks 6b in the locking position shown in FIG. 6.
  • the pins 6a and the locking hooks 6b are arranged symmetrically in the longitudinal median plane of a support structure assembly 2 - nozzles 4 containing the axis XX ′ represented in FIG. 2 or in FIG. 3.
  • the two load-bearing structures 2 of a span 1 are arranged symmetrically to a longitudinal median plane containing the axis YY ′ of FIG. 1, so that at the upper locking axes and lower locking hooks on the same side of one end of a support structure assembly 2 - folded out beaks 4 correspond respectively the upper locking hooks and lower locking pins on the same side of the end, opposite the previous end, of the other supporting structure assembly 2 - folded spouts 4.
  • Each support structure 2 - spouts 4 assembly comprises at one of its ends a positioning foot 24 in the shape of a pyramid and integral with the front face 2e of the structure 2 and, at its opposite end, a positioning opening 25 made at across the opposite front face 2e of structure 2.
  • Each positioning foot and each positioning opening 25 are dimensioned in such a way that the two opposite positioning feet 24 respectively of two sets of supporting structures 2 - folded spouts 4 of a span 1 respectively engage in two opposite positioning openings 25 respectively of two sets of supporting structures - folded spouts 4 of another span 1 during the end-to-end coupling of these two spans for their mutual positioning, the assembly thus produced foot 24 - opening 25 for positioning being intended to take up the forces shear resulting from the passage of heavy vehicles on the tracks of the two spans coupled end to end.
  • Each positioning foot 24 and each positioning opening 25 of an assembly are arranged symmetrically to the longitudinal median plane passing through the axis XX ′ and situated respectively between the articulation axis 5 and the locking hooks 6b and between the axis 5 and the locking axes 6a.
  • the front face of one of the folded spouts 4 of each support structure 2 - spouts 4 assembly and located above a positioning foot 24 comprises a opening 26 of dimensions greater than those of the positioning foot 24 so as to allow free passage through the front face 4e of the underlying positioning foot 24 when the spout 4 is deployed.
  • Each central part 2c forming the track of a span 1 comprises two side walls 2f and 2g delimiting the track and forming wheel guide wheels located on the same side of a vehicle traveling on the two parallel tracks of the span 1.
  • the walls forming wheel guide 2f and 2g are joined by welding to the upper part 2c of each support structure 2.
  • the upper part 2d forming the track of each structure 2 comprises two lateral walls delimiting the track and forming wheel guide 2h and 2i.
  • the walls 2h and 2i are joined to the upper part 2d also by welding.
  • Each spout 4 comprises two side walls 4f and 4g delimiting the track 4a of the spout 4 and being able to slide freely parallel to the side faces of the spout, so as to occupy a service position projecting above the track of the spout perpendicular to the latter when the spout is in the folded position, or a retracted or erased position when the spout 4 is deployed in contact with the ground, the two walls 4f and 4g disappearing until they come into the plane of laying the spout .
  • FIG. 12 shows the structure allowing the wall forming the wheel guide 4f to slide with respect to the lateral face of a spout 4 to occupy the service and retracted positions, the structure used for sliding the wall forming the wheel guide 4g being identical.
  • the side wall 4f shown in the service position, has several transverse oblong holes spaced 4h at the level of its crossed upper part respectively by guide pins 4i secured, for example by screwing, to the corresponding lateral face of the spout 4.
  • Each guide pin 4i has a head 4i1 of dimension greater than the width of the corresponding oblong hole 4h.
  • transverse parts spaced in the form of a horizontal U 4j are fixed, for example by welding, to the lateral face of the spout 4 a certain distance below the guide axes 4i.
  • a plate 4k projecting outwardly from the side wall 4f is fixed by welding to the lower end of the wall 4f along the latter and protrudes internally by forming studs respectively engaging in the U-shaped parts 4j.
  • the plate 4k acts as a stop limiting the downward movement of the side wall 4f by considering FIG. 12 by bearing by gravity on the upper end of the side wall forming wheel guide 2h.
  • the guide axis 4i is located at the lower end of the corresponding oblong hole 4h.
  • each side wall forming wheel guide 4f, 4g of the spout comes to rest on the ground so as to move by sliding in the direction indicated by arrow F4 in FIG. 12, thus retracting this wall.
  • Each spout 4 is held in the folded position by lateral locking means 26, only one of which is shown in FIG. 13.
  • the locking means 26 comprises a lever arm 27 mounted pivoting about a transverse central axis 28 integral with the transverse portion connecting the two parts 2c and 2d forming a rolling track for a supporting structure 2.
  • the lever arm 28 ends at the upper level by a locking hook 29 in which a transverse locking axis 30 can engage integral with the vicinity of the free end 41 in the form of a hook of the spout 4.
  • This end 41 in the folded position of the spout 4, rests in a transverse recess of conjugate shape of the junction portion 2k.
  • the end of the lever 27, opposite the locking hook 29, is mechanically connected to a locking and unlocking mechanism (not shown) controlled manually or automatically.
  • a locking and unlocking mechanism may consist of a manual control linkage.
  • the two coaxial locking axes 30 are embedded in their respective respective locking hooks 29.
  • the locking mechanism is actuated so as to pivot the arm 27 around its pivot axis 28 along arrow F5, thereby disengaging the two hooks 29 from the locking pins 30.
  • FIGS. 14A to 14E represent the handling of two spans and their end-to-end assembly in order to form a spans of great span to cover a very wide breach.
  • a transport truck T transports near at least one gap to cover B at least two identical overlapping spans 1, the spouts 4 of which are locked in the folded position.
  • a handling crane machine G takes two spans from the transport truck and places them on the ground so that they are approximately in alignment, with a positioning foot 24 of one end of a span 1 lying approximately opposite a positioning opening 25 at the end of the other span 1, the centering leg 24 is also approximately opposite the positioning opening 25 of the first span 1.
  • the handling crane G moves axially l 'one of the two span 1 towards the other span as indicated by arrow F5 until the two positioning feet 24 engage respectively in the two positioning openings 25 with then locking of the two adjacent ends of the two spans by engagement of the axes of lower and upper locking 6a of a span 1 respectively in the lower and upper locking hooks of the other span and engagement of the lower and upper locking pins 6a of the other span respectively in the lower and upper locking hooks 6b of the first span.
  • the lower and upper hooks of a span before engagement of the positioning feet in their respective positioning openings 25 have been unlocked by operating the corresponding lateral levers 15 which are then operated in the direction of locking the hooks 6b once the positioning feet engaged respectively in the positioning openings 25.
  • the adjacent folded spouts provide very good mechanical resistance, in particular at the junction for assembling the two spans. It should also be noted that to be certain of benefiting from the increase in height and consequently of inertia provided by the folded position of the spouts, the latter are not in contact with each other or at the level of the hinge parts 7 offset relative to each other at the joining junction of the two spans, nor at the level of the bearing faces 10 also offset.
  • the axes 6a and the hooks 6b for locking the locks 6 and the feet 24 and openings 25 for positioning are placed so that there is no preferred order for the assembly of two spans.
  • the two pairs of end folded nozzles respectively of the two coupled spans 1 are then unlocked of their support structure 2 by maneuvering the arms 27 corresponding to the locking hooks 29 in the unlocking direction.
  • the handling crane G is then used to pivot the two pairs of end jaws 4 around their articulation axes 5 so that the locking axes 6a of a nose 4 of an end pair and the lower locking axes 6a of the supporting structure associated with the other access spout 4 of this same extreme pair respectively engage in the lower locking hooks of the carrying structure 2 of the first spout 4 of the pair and the locking hooks 6b of the spout 4 associated with the second support structure 2.
  • FIGS. 15A and 15B represent a span 1 deposited above a breach B of relatively small width.
  • This span has the spouts 4 of two end pairs which have been deployed and locked at the ends of the span as described with reference to the two pairs of end spouts of the two coupled spans 1 of FIGS. 14D and 14E and rests by its spouts forming spouts of access on the two opposite edges of the breach B.
  • the invention has been described with reference to a span with two sets of load-bearing structures and spouts to form two parallel tracks respectively for the side wheels of vehicles, but it is understood that it also applies to a span with a single structure load-bearing and with two extreme spouts to form a track with a width allowing the passage of vehicles.
EP90401873A 1989-07-06 1990-06-28 Brückensystem zur Überwindung von Gräben durch Fahrzeuge Expired - Lifetime EP0407274B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90401873T ATE87683T1 (de) 1989-07-06 1990-06-28 Brueckensystem zur ueberwindung von graeben durch fahrzeuge.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8909133A FR2649426B1 (fr) 1989-07-06 1989-07-06 Systeme de pontage permettant a des vehicules de franchir des breches
FR8909133 1989-07-06

Publications (2)

Publication Number Publication Date
EP0407274A1 true EP0407274A1 (de) 1991-01-09
EP0407274B1 EP0407274B1 (de) 1993-03-31

Family

ID=9383556

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90401873A Expired - Lifetime EP0407274B1 (de) 1989-07-06 1990-06-28 Brückensystem zur Überwindung von Gräben durch Fahrzeuge

Country Status (6)

Country Link
US (1) US5033145A (de)
EP (1) EP0407274B1 (de)
AT (1) ATE87683T1 (de)
DE (1) DE69001213T2 (de)
FR (1) FR2649426B1 (de)
HK (1) HK1002710A1 (de)

Cited By (3)

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EP0562338A1 (de) * 1992-03-23 1993-09-29 Krupp Fördertechnik GmbH Verlegbare Brücke
US5363527A (en) * 1991-11-15 1994-11-15 Constructions Industrielles De La Mediterranee Cnim Spanning beam structure for clearing breaches by vehicles
EP0711873A3 (de) * 1994-11-08 1996-11-13 Krupp Foerdertechnik Gmbh Vorrichtung zum automatischen Kuppeln von transportablen bzw. zerlegbaren Brücken

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5363527A (en) * 1991-11-15 1994-11-15 Constructions Industrielles De La Mediterranee Cnim Spanning beam structure for clearing breaches by vehicles
EP0562338A1 (de) * 1992-03-23 1993-09-29 Krupp Fördertechnik GmbH Verlegbare Brücke
DE4209316A1 (de) * 1992-03-23 1993-09-30 Krupp Industrietech Verlegbare Brücke
US5297308A (en) * 1992-03-23 1994-03-29 Krupp Industrietechnik Gesellschaft Mit Beschrankter Haftung Deployable bridge
EP0711873A3 (de) * 1994-11-08 1996-11-13 Krupp Foerdertechnik Gmbh Vorrichtung zum automatischen Kuppeln von transportablen bzw. zerlegbaren Brücken

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US5033145A (en) 1991-07-23
ATE87683T1 (de) 1993-04-15
EP0407274B1 (de) 1993-03-31
FR2649426A1 (fr) 1991-01-11
DE69001213T2 (de) 1993-10-21
DE69001213D1 (de) 1993-05-06
FR2649426B1 (fr) 1992-03-20
HK1002710A1 (en) 1998-09-11

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