EP0454709A1 - Vehicle, in particular chassis for a bridge inspection device. - Google Patents

Vehicle, in particular chassis for a bridge inspection device.

Info

Publication number
EP0454709A1
EP0454709A1 EP90901740A EP90901740A EP0454709A1 EP 0454709 A1 EP0454709 A1 EP 0454709A1 EP 90901740 A EP90901740 A EP 90901740A EP 90901740 A EP90901740 A EP 90901740A EP 0454709 A1 EP0454709 A1 EP 0454709A1
Authority
EP
European Patent Office
Prior art keywords
frame
additional
wheels
vehicle
vehicle according
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
EP90901740A
Other languages
German (de)
French (fr)
Other versions
EP0454709B1 (en
Inventor
Alfons Moog
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.)
Individual
Original Assignee
Individual
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
Application filed by Individual filed Critical Individual
Priority to AT90901740T priority Critical patent/ATE95864T1/en
Publication of EP0454709A1 publication Critical patent/EP0454709A1/en
Application granted granted Critical
Publication of EP0454709B1 publication Critical patent/EP0454709B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • E—FIXED CONSTRUCTIONS
    • E01—CONSTRUCTION OF ROADS, RAILWAYS, OR BRIDGES
    • E01D—CONSTRUCTION OF BRIDGES, ELEVATED ROADWAYS OR VIADUCTS; ASSEMBLY OF BRIDGES
    • E01D19/00—Structural or constructional details of bridges
    • E01D19/10—Railings; Protectors against smoke or gases, e.g. of locomotives; Maintenance travellers; Fastening of pipes or cables to bridges
    • E01D19/106—Movable inspection or maintenance platforms, e.g. travelling scaffolding or vehicles specially designed to provide access to the undersides of bridges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66F—HOISTING, LIFTING, HAULING OR PUSHING, NOT OTHERWISE PROVIDED FOR, e.g. DEVICES WHICH APPLY A LIFTING OR PUSHING FORCE DIRECTLY TO THE SURFACE OF A LOAD
    • B66F11/00—Lifting devices specially adapted for particular uses not otherwise provided for
    • B66F11/04—Lifting devices specially adapted for particular uses not otherwise provided for for movable platforms or cabins, e.g. on vehicles, permitting workmen to place themselves in any desired position for carrying out required operations
    • B66F11/044—Working platforms suspended from booms

Definitions

  • Vehicle in particular chassis of a bridge inspection device
  • the invention relates to a vehicle, in particular
  • DE-OS 33 05 384 it is known from DE-OS 33 05 384 to carry out the conversion of a road transport chassis in an operating chassis characterized in that provided with rollers supports are extended from the frame down on the ⁇ road which the vehicle weight to a large extent or completely take.
  • the rollers are slowly drivable and steerable in this known chassis.
  • vehicles in particular trucks, with pressure-actuated, in particular air-sprung, rear axles are generally known.
  • These axles are pivoted up and down on the frame by means of two trailing arms and are supported on the frame by two air bellows or cylinder arrangements.
  • the frame By reducing the pressure in the bellows or cylinders, the frame, possibly with the load, can be lowered so far that it rests on unsprung stops of the axles.
  • the frame can be raised again by increasing the pressure and the suspension behavior required for road travel can be restored.
  • This height change is known to be used to carry out a rapid charge change, e.g. B. to pick up or put down a container standing on stilts.
  • the invention has for its object to propose a vehicle that takes over both the function of a road transport chassis and the function of an operating chassis, relatively low. Investment costs are required and can be changed quickly and easily from one operating mode to another.
  • the main difference of this vehicle compared to known convertible chassis for bridge underside devices or similar devices is that the unsprung additional wheels are not adjustable in height, at least under load on the frame, but the frame is lowered until these additional wheels come into contact with the ground.
  • the frame is also not lowered by means of devices which are assigned to the additional wheels, but rather with the aid of the pressure-sprung axle assembly.
  • Commercially available standard axles can be used, which are relatively inexpensive and special lifting devices on the additional wheels are unnecessary.
  • the maximum stroke of the pressure-operated height adjustment devices of standard truck axles is only about 12 cm. But that is enough, because the same rubber-tired wheels are expediently used as additional wheels as with the pressure-sprung axle units. So if the auxiliary wheels occasionally touch the ground occasionally when driving on the road as a result of bumps or when the sprung wheels are extremely compressed, that does no harm. The additional wheels then simply run along.
  • the pressure-sprung axle assembly can consist of one or more axles. The number of additional wheels is determined by the required stability. Under certain circumstances, a single additional wheel may already be sufficient. It is better to have two additional wheels, one of which is arranged in front of and one behind the axle assembly, preferably on the side facing the edge of the bridge during operation of the bridge underside device.
  • This additional axle can also be attached in front of or behind the pressure-sprung axle assembly, or an additional axle in front and one behind it.
  • the additional wheels preferably run in the same track as the wheels of the sprung axle assembly.
  • At least one additional wheel or an additional axle be designed to be steerable.
  • a simple steering device is sufficient since only small steering deflections are required.
  • a steering device is expedient, which normally assumes a central position and makes predetermined fixed deflections when the signal "left" or signal "right”.
  • the auxiliary wheels are also suitable for the arrangement of a slow drive.
  • the mentioned fixed stops of the axles of the pressure-sprung axle assembly, on which the frame lies when lowering, are relatively far inside, i.e. H. at a small distance from the median longitudinal plane of the vehicle.
  • the support base of the frame on these axles when tilting in the transverse direction is thus much smaller than the track width.
  • An important development of the invention consists in that an axially parallel support roller is arranged on the frame via at least one wheel of the axle assembly, to which the tire of the wheel in question rests with its tread in the lower position of the frame.
  • Several support rollers can also be provided for one wheel.
  • the main advantage of these back-up rollers is that the tilting edge of the frame is moved outwards with respect to the axes and the stability of the frame is thereby considerably increased.
  • Another advantage of such support rollers is that they can be equipped with a hydraulic slow drive, for example.
  • the backup rollers then act as driving friction wheels on the rubber tires. The backup rollers do not touch the tires in road transport operations.
  • Another means of increasing the stability of the frame in work is that the additional wheels have tires with a harder suspension behavior than the tires of the wheels of the axle assembly.
  • Tires can be foamed with plastic, for example. If necessary, the auxiliary wheels or some of them can be extendable in the axial direction so that D
  • the height of the additional wheels and the stops on the frame is expediently chosen so that when the frame is lowered into the lower position, the total axle load is evenly distributed over the existing axles.
  • the proposed vehicle can be designed as a self-driving truck, as a trailer or as a semi-trailer.
  • the steerable axle can also be used for steering in work mode. Except for one
  • Bridge underside device such a vehicle can also be used for mobile lifts, mobile high-work platforms or for working machines, e.g. B. Road construction machinery, use in the.
  • FIG. 1 is a side view of a truck, on which a bridge underside device is built, in the road transport position,
  • FIG. 3 shows the side view of a bridge underside device designed as a semi-trailer in the road transport position with towing vehicle
  • FIG. 4 shows the side view of this device ready for work, 5 on a smaller scale the side view of the chassis according to FIG. 4 with the bridge underside device erected when used on a bridge,
  • FIG. 6 shows a schematic cross section of such a vehicle in the region of the compressed air-sprung axle assembly, the frame with support rollers being in the upper position, and
  • Fig. 7 shows the representation of FIG. 6 with the frame lowered.
  • the truck according to FIGS. 1 and 2 has a frame 1 designed as a flat platform and a total of five axles which are provided with rubber tires of the same size as are usually used for
  • the front axle 2 is steerable and sprung as usual.
  • the two middle rear axles are the drive axles. They form an axle assembly 3 with compressed air suspension and a device for height adjustment.
  • the two axles mentioned are pivoted on the vehicle frame by means of trailing arms 4.
  • the air-filled bellows are indicated by 5.
  • An axially parallel support roller 6 is arranged at a distance of about 12 cm above each of the four wheels of the axle assembly 3. These backup rolls can be driven slowly with the help of rotating hydraulic motors.
  • In front of and behind the axle assembly 3 there is an additional axle 7 and 8, respectively, which are fixed, ie not resilient, to the frame 1.
  • the additional wheels run in the track of the wheels of the axle assembly 3.
  • the wheels of the additional axles 7 and 8 are so high that they are at a distance of about 12 cm from the road surface.
  • Bridge underside device consists essentially of a lifting tower 9 and a work platform 10 which is tilted by 90 ° so that its bottom is vertical.
  • the lifting tower has a lower tower section 12, which can be rotated about the tower axis by means of a turntable 11.
  • the work web 10 is pivotably connected to this at a transverse axis 13.
  • the lifting tower 9 is mounted on a guide frame 14 so as to be displaceable in the longitudinal direction.
  • This guide frame is articulated on a snap frame 17 by means of parallel levers 15 and 16. This in turn is movably mounted about a horizontal transverse axis 18 on a turntable 19 which rotates on the frame 1 about a vertical axis 20.
  • the vehicle is suitable for road transport operation.
  • the support rollers 6 are exposed and the wheels of the additional axles 7 and 8 have no ground contact.
  • the vehicle is prepared according to FIG. 2 by lowering the frame 1 for the working position. By reducing the air pressure in the bellows 5, these are compressed under the weight of the loaded frame and shorten. The frame sinks down until the additional wheels come into contact with the ground and are loaded.
  • the bearing blocks 21 of the trailing arms have also been lowered and the support rollers 6 press on the tires of the axle assembly 3.
  • the total axle load of the rear vehicle section is thus distributed from two to four axles.
  • FIG. 6 and 7 in particular show the support rollers 6 more clearly. These have a continuous shaft 22 and are constructed in such a way that they can absorb the considerable radial forces of the wheels of the axle assembly 3, which are designated 23 here.
  • the upper stops 24 attached to the frame 1 come into contact with the lower stops 25 attached to the axle.
  • the outer lateral boundary edges of the stops 24 running in the longitudinal direction of the vehicle are the decisive tilting edges of the vehicle body.
  • these tilting edges are moved laterally outwards by a distance a.
  • the backup rollers thus make a significant contribution to the stability of such a device in work.
  • the frictional contact between the support rollers and the wheels 23 is used for slowly moving the vehicle on the bridge.
  • the hydraulic motors, not shown, which engage the support rollers can also be remotely controlled from the work platform.
  • the front axle 2, which can be equipped with a remote control add-on, is used for steering.
  • FIGS. 3 to 5 show, as a second exemplary embodiment, a semi-trailer on which an identical bridge underside device is constructed.
  • the frame 26, also designed as a platform is in the upper position for road transport.
  • the towing vehicle 27 is coupled.
  • the trailer has four axles.
  • the two rear axles form an axle assembly 28 with compressed air suspension.
  • a permanently attached additional axle 29 Immediately in front of this there is a permanently attached additional axle 29 and at a distance further to the front, in the area of the cranking of the semitrailer neck there is a further likewise unsprung additional axle 30.
  • This is steerable and also short Longitudinal levers 31 attached, which by means of * a small hydraulic lifting cylinder 32 or a manual winch between an upper and.
  • the axle assembly 28 springs.
  • a backup roller 33 over the last wheel and a pair of backup rollers 34 over the penultimate wheel are disengaged.
  • the uncoupling from the towing vehicle 27 takes place in such a way that the additional axis 30 is first brought into its lower position and locked, so that both additional axes have the same ground clearance of 12 cm.
  • the compressed air-operated lowering devices are actuated both on the towing vehicle and on the axle assembly 28. All four axles of the semi-trailer thus assume the total axle load, as shown in FIG. 4.
  • the towing vehicle 27 can move away.
  • the support rollers which also have a slow hydraulic drive in this example, are engaged. With the simple steering device of the additional axle 30, the vehicle can follow the predetermined lane on the bridge.
  • the turntable 19 is rotated about its vertical axis 20 and at the same time the folding frame 17 is pivoted up about its axis 18 by means of a lifting cylinder, which is indicated by dash-dotted lines.
  • the lower part of the tower 12 thus moves over the parapet of the bridge and swivels further downward.
  • the parallel arms 15, 16, also by means of a stroke cylinder indicated by dash-dotted lines, from the snap frame 17 are pivoted away.
  • the semi-trailer could e.g. B. have a sprung axle assembly with three axles.
  • An additional axle could also be arranged behind the axle unit, the front additional axle 30, which can be lifted free of load, being eliminated depending on the longitudinal position of the center of gravity of the vehicle.
  • one or more additional axles should be steerable. More or fewer axles could also be provided in the truck. It would also be advantageous to be able to steer the rear additional axle behind the sprung axle assembly.

Landscapes

  • Engineering & Computer Science (AREA)
  • Structural Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Geology (AREA)
  • Mechanical Engineering (AREA)
  • Architecture (AREA)
  • Civil Engineering (AREA)
  • Vehicle Body Suspensions (AREA)
  • Bridges Or Land Bridges (AREA)

Abstract

Un véhicule, notamment le châssis d'un dispositif de contrôle à pont, comprend un cadre (1) et des roues de véhicule routier. Afin de pouvoir convertir rapidement et aisément un tel véhicule en un châssis de service à stabilité accrue, un ensemble d'essieu (3) à suspension hydraulique et au moins une roue supplémentaire (7, 8) non suspendue située devant et/ou derrière l'ensemble sont montés sur le cadre (1). L'ensemble essieu (3) comprend une installation hydraulique (4, 5) reliée au système de suspension qui permet de baisser le cadre (1) d'une position supérieure, dans laquelle la suspension s'exerce, à une position inférieure. La roue supplémentaire (7, 8) ne touche pas la chaussée dans la position supérieure du cadre (1), pendant le transport routier, et repose sur la chaussée dans la position inférieure de service du cadre (1). Des rouleaux de support (6) qui servent également d'entraînement lent peuvent être agencés au-dessus des roues de l'ensemble d'essieu (3).A vehicle, in particular the chassis of a bridge control device, comprises a frame (1) and road vehicle wheels. In order to be able to convert such a vehicle quickly and easily into a service chassis with increased stability, a set of axles (3) with hydraulic suspension and at least one additional unsprung wheel (7, 8) located in front and / or behind it. 'together are mounted on the frame (1). The axle assembly (3) comprises a hydraulic installation (4, 5) connected to the suspension system which allows the frame (1) to be lowered from an upper position, in which the suspension is exerted, to a lower position. The additional wheel (7, 8) does not touch the roadway in the upper position of the frame (1), during road transport, and rests on the roadway in the lower operating position of the frame (1). Support rollers (6) which also serve as a slow drive can be arranged above the wheels of the axle assembly (3).

Description

Beschreibung: Description:
Fahrzeug, insbesondere Fahrgestell einer Brüc enunter- sichtvorriclitungVehicle, in particular chassis of a bridge inspection device
Die Erfindung betrifft ein Fahrzeug, insbesondereThe invention relates to a vehicle, in particular
Fahrgestell einer Brückenuntersichtvorrichtung, mit einemChassis of a bridge underside device, with a
Rahmen und mit Straßenfahrzeugrädern. Dabei ist von einemFrame and with road vehicle wheels. It is from one
Fahrzeug auszugehen, das sich auf öffentlichen Straßen etwa mit der Geschwindigkeit eines Lastkraftwagens fortbewegt.Go out vehicle that moves on public roads at about the speed of a truck.
Bei sogenannten selbstaufbauenden Brückenuntersicht- vorrichtungen oder ähnlichen schweren und weit ausladenden SpezialVorrichtungen ist es bekannt, das zum Straßentransport verwendete Fahrgestell vor dem Arbeitseinsatz zu einem Betriebsfahrgestell umzurüsten, das eine höhere Standfestigkeit als ein übliches gefedertes und luftbereiftes Straßenfahrzeug hat. Weitere typische Ausrüstungsmerkmale eines Betriebsfahrgestells sind ein fernsteuerbarer Langsamantrieb und eine fernsteuerbare oder selbsttätige Lenkung. Bei einer Brückenuntersichtvorrichtung dient der Langsamantrieb zur Fortbewegung der Vorrichtung beim Arbeitseinsatz auf einer Brücke. Die Lenkung erfordert nur geringe Lenkungsausschläge, um einer vorgegebenen Spur genau folgen zu können. Beispielsweise ist es aus der DE-OS 33 05 384 bekannt, die Umrüstung eines Straßentransport-Fahrgestells in ein Betriebsfahrgestell dadurch zu vollziehen, daß mit Laufrollen versehene Stützen vom Rahmen nach unten auf die^ Fahrbahn ausgefahren werden, welche das Fahrzeuggewicht zum großen Teil oder ganz übernehmen. Die Laufrollen- sind bei diesem bekannten Fahrgestell langsam antreibbar und lenkbar. Um die Stützen ausfahren zu können, ist es bekannt, sie teleskopierbar, klappbar oder verschiebbar am Rahmen anzubringen, wobei zur Bewegung hydraulische Hubkolben als Antrieb vorgesehen sind.In the case of so-called self-assembling bridge inspection devices or similar heavy and widely protruding special devices, it is known to convert the chassis used for road transport to an operating chassis before work, which has a higher stability than a conventional sprung and pneumatic tire road vehicle. Other typical equipment features of a company chassis are a remote-controlled slow drive and a remote-controlled or automatic steering. In a bridge underside device, the slow drive serves to move the device when working on a bridge. The steering requires only slight steering deflections in order to be able to follow a given lane exactly. For example, it is known from DE-OS 33 05 384 to carry out the conversion of a road transport chassis in an operating chassis characterized in that provided with rollers supports are extended from the frame down on the ^ road which the vehicle weight to a large extent or completely take. The rollers are slowly drivable and steerable in this known chassis. In order to be able to extend the supports, it is known to mount them on the frame in a telescopic, foldable or displaceable manner, hydraulic lifting pistons being provided as the drive for movement.
Diese Stützen und ihre Bewegungsmechanismen erfordern jedoch einen beträchtlichen Aufwand, zumal im Interesse einer Herabsetzung der maximalen Punktbelastung der Brückenoberfläche die Anzahl der Stützen und Laufrollen möglichst groß sein sollte.However, these supports and their movement mechanisms require considerable effort, especially since the number of supports and rollers should be as large as possible in order to reduce the maximum point load on the bridge surface.
Andererseits sind Fahrzeuge, insbesondere Lastkraftwagen, mit druckmittelbetätigten, insbesondere luftgefederten, Hinterachsen allgemein bekannt. Diese Achsen sind mittels zweier Längslenker auf und ab schwenkbar am Rahmen gelagert und stützen sich über zwei Luftbalgen oder Zylinderanordnungen am Rahmen ab. Durch Verringern des Drucks in den Balgen oder Zylindern kann der Rahmen, ggf. mit der Ladung, so weit abgesenkt werden, daß er auf ungefederten Anschlägen der Achsen aufsitzt. Umgekehrt kann durch Erhöhung des Druckes der Rahmen wieder angehoben und das für die Straßenfahrt erforderliche Federungsverhalten wieder hergestellt werden. Diese Höhenveränderung wird bekanntlich ausgenutzt, um einen schnellen Ladungswechsel durchzuführen, z. B. einen auf Stelzen stehenden Container aufzunehmen oder abzusetzen. Der Erfindung liegt die Aufgabe zugrunde, ein Fahrzeug vorzuschlagen, das sowohl die Funktion eines Straßentransport-Fahrgestells als auch die Funktion eines Betriebsfahrgestells übernimmt, verhältnismäßig geringe •». Investitionskosten erfordert und schnell und einfach von der einen in die andere Betriebsart umgestellt werden kann.On the other hand, vehicles, in particular trucks, with pressure-actuated, in particular air-sprung, rear axles are generally known. These axles are pivoted up and down on the frame by means of two trailing arms and are supported on the frame by two air bellows or cylinder arrangements. By reducing the pressure in the bellows or cylinders, the frame, possibly with the load, can be lowered so far that it rests on unsprung stops of the axles. Conversely, the frame can be raised again by increasing the pressure and the suspension behavior required for road travel can be restored. This height change is known to be used to carry out a rapid charge change, e.g. B. to pick up or put down a container standing on stilts. The invention has for its object to propose a vehicle that takes over both the function of a road transport chassis and the function of an operating chassis, relatively low. Investment costs are required and can be changed quickly and easily from one operating mode to another.
Diese Aufgabe wird erfindungsgemäß mit einem Fahrzeug nach Patentanspruch 1 gelöst.This object is achieved with a vehicle according to claim 1.
Der wesentliche Unterschied dieses Fahrzeugs gegenüber bekannten umrüstbaren Fahrgestellen für Brückenuntersichtvorrichtungen oder ähnliche Geräte besteht darin, daß die ungefederten Zusatzräder zumindest unter Belastung am Rahmen nicht höhenverstellbar sind, sondern der Rahmen abgesenkt wird, bis diese Zusatzräder Bodenkontakt erhalten. Das Absenken des Rahmens geschieht ebenfalls im Gegensatz zum Stand der Technik nicht mittels Vorrichtungen, die den Zusatzrädern zugeordnet sind, sondern unter Zuhilfenahme des druckmittelgefederten Achsaggregats . Es können im Handel befindliche serienmäßige Achsaggregate verwendet werden, die verhältnismäßig preiswert sind und besondere Hubvorrichtungen an den Zusatzrädern sind entbehrlich.The main difference of this vehicle compared to known convertible chassis for bridge underside devices or similar devices is that the unsprung additional wheels are not adjustable in height, at least under load on the frame, but the frame is lowered until these additional wheels come into contact with the ground. In contrast to the prior art, the frame is also not lowered by means of devices which are assigned to the additional wheels, but rather with the aid of the pressure-sprung axle assembly. Commercially available standard axles can be used, which are relatively inexpensive and special lifting devices on the additional wheels are unnecessary.
Normalerweise beträgt der maximale Hub der druckmittelbetätigten Höhenverstelleinrichtungen von serienmäßigen LKW-Achsen nur etwa 12 cm. Das reicht aber aus, denn zweckmäßigerweise werden auch als Zusatzräder die gleichen gummibereiften Räder verwendet, wie bei den druckmittelgefederten Achsaggregaten. Wenn also bei der Straßenfahrt infolge von Unebenheiten oder bei extrem starkem Einfedern der gefederten Räder die Zusatzräder hin und wieder kurz den Boden berühren, so schadet das nicht. Die Zusatzräder laufen dann einfach mit. Das druckmittelgefederte Achsaggregat kann aus einer oder mehreren Achsen bestehen. Die Zahl der Zusatzräder bestimmt sich nach der benötigten Standfestigkeit. Unter Umständen kann ein einziges Zusatzrad schon genügen. Besser sind zwei Zusatzräder, von denen eines vor und eines hinter dem Achsaggregat angeordnet ist, und zwar vorzugsweise auf der im Arbeitsbetrieb der Brückenuntersichtvorrichtung dem Brückenrand zugewandten Seite. Noch vorteilhafter ist es, wenigstens eine Zusatzachse mit zwei Zusatzrädern vorzusehen. Auch diese Zusatzachse kann vor oder hinter dem druckmittelgefederten Achsaggregat angebracht sein oder eine Zusatzachse davor und eine dahinter. Vorzugsweise laufen die Zusatzräder in der gleichen Spur wie die Räder des gefederten Achsaggregats.Normally, the maximum stroke of the pressure-operated height adjustment devices of standard truck axles is only about 12 cm. But that is enough, because the same rubber-tired wheels are expediently used as additional wheels as with the pressure-sprung axle units. So if the auxiliary wheels occasionally touch the ground occasionally when driving on the road as a result of bumps or when the sprung wheels are extremely compressed, that does no harm. The additional wheels then simply run along. The pressure-sprung axle assembly can consist of one or more axles. The number of additional wheels is determined by the required stability. Under certain circumstances, a single additional wheel may already be sufficient. It is better to have two additional wheels, one of which is arranged in front of and one behind the axle assembly, preferably on the side facing the edge of the bridge during operation of the bridge underside device. It is even more advantageous to provide at least one additional axle with two additional wheels. This additional axle can also be attached in front of or behind the pressure-sprung axle assembly, or an additional axle in front and one behind it. The additional wheels preferably run in the same track as the wheels of the sprung axle assembly.
Um das Betriebsfahrgestell im Arbeitseinsatz lenken zu können, wird vorgeschlagen, daß wenigstens ein Zusatzrad oder eine Zusatzachse lenkbar ausgebildet ist. Es genügt eine einfache Lenkvorrichtung, da nur kleine Lenkausschläge erforderlich sind. Zweckmäßig ist eine Lenkvorrichtung, die normalerweise eine Mittelstellung einnimmt und bei Signal "links" oder Signal "rechts" vorbestimmte feste Ausschläge macht. Ferner eignen sich die Zusatzräder für die Anordnung eines Langsamantriebs.In order to be able to steer the company chassis during work, it is proposed that at least one additional wheel or an additional axle be designed to be steerable. A simple steering device is sufficient since only small steering deflections are required. A steering device is expedient, which normally assumes a central position and makes predetermined fixed deflections when the signal "left" or signal "right". The auxiliary wheels are also suitable for the arrangement of a slow drive.
* Wenn die Zusatzräder oder Zusatzachsen am Rahmen nicht höhenverstellbar befestigt sind, bestimmt sich die Bodenfreiheit derselben bei der Straßenfahrt nach der Hubhöhe der druckmittelbetätigten Absenkeinrichtung. Wenn ausnahmsweise eine größere Bodenfreiheit erwünscht ist, kann jedoch an der betreffenden Zusatzachse eine Versteilvorrichtung angebracht werden, mit deren Hilfe diese Achse unbelastet zwischen zwei verschieden hohen Stellungen bewegt und in diesen Stellungen am Rahmen arretiert werden kann. Insbesondere ist hier an einfache handbetätigte Verstellvorrichtungen zu denken. Ihre Anbringung kann sich auch insofern lohnen, als die Wahl eines druckmittelgefederten Achsaggregats mit verhältnismäßig kleinem Hub kostengünstiger ist. * If the additional wheels or additional axles are not attached to the frame in a height-adjustable manner, their ground clearance when driving on the road is determined by the lifting height of the pressure-operated lowering device. If exceptionally a larger ground clearance is desired, however, an adjusting device can be attached to the relevant additional axis, with the help of which this axis can be moved unloaded between two different high positions and locked in these positions on the frame. In particular here is simple to think of manually operated adjustment devices. Attaching them can also be worthwhile insofar as the choice of a pressure-sprung axle unit with a relatively small stroke is more cost-effective.
Die erwähnten festen Anschläge der Achsen des druckmittelgefederten Achsaggregats, auf die sich der Rahmen beim Absenken legt, befinden sich verhältnismäßig weit innen, d. h. in einem kleinen Abstand von der Längsmittelebene des Fahrzeugs. Die Stützbasis des Rahmens auf diesen Achsen beim Kippen in Querrichtung ist somit wesentlich geringer als die Spurbreite. Eine bedeutende Weiterbildung der Erfindung besteht nun darin, daß am Rahmen über wenigstens einem Rad des Achsaggregats eine achsparallele Stützwalze angeordnet ist, an die sich in der unteren Stellung des Rahmens der Reifen des betreffenden Rades mit seiner Lauffläche anlegt. Es können auch für ein Rad mehrere Stützwalzen vorgesehen sein. Der Hauptvorteil dieser Stützwalzen besteht darin, daß die Kippkante des Rahmens bezüglich der Achsen nach außen verlegt und die Standfestigkeit des Rahmens dadurch beträchtlich erhöht wird. Ein weiterer Vorteil solcher Stützwalzen besteht darin, daß sie mit einem beispielsweise hydraulischen Langsamantrieb ausgestattet sein können. Die Stützwalzen wirken dann als antreibende Reibräder auf die gummibereiften Räder. Im Straßentransportbetrieb berühren die Stützwalzen die Reifen nicht.The mentioned fixed stops of the axles of the pressure-sprung axle assembly, on which the frame lies when lowering, are relatively far inside, i.e. H. at a small distance from the median longitudinal plane of the vehicle. The support base of the frame on these axles when tilting in the transverse direction is thus much smaller than the track width. An important development of the invention consists in that an axially parallel support roller is arranged on the frame via at least one wheel of the axle assembly, to which the tire of the wheel in question rests with its tread in the lower position of the frame. Several support rollers can also be provided for one wheel. The main advantage of these back-up rollers is that the tilting edge of the frame is moved outwards with respect to the axes and the stability of the frame is thereby considerably increased. Another advantage of such support rollers is that they can be equipped with a hydraulic slow drive, for example. The backup rollers then act as driving friction wheels on the rubber tires. The backup rollers do not touch the tires in road transport operations.
Ein weiteres Mittel zur Erhöhung der Standfestigkeit des Rahmens im Arbeitsbetrieb besteht darin, daß die Zusatzräder Reifen mit einem härteren Federungsverhalten als die Reifen der Räder des Achsaggregats aufweisen. DieAnother means of increasing the stability of the frame in work is that the additional wheels have tires with a harder suspension behavior than the tires of the wheels of the axle assembly. The
Reifen können beispielsweise mit Kunststoff ausgeschäumt sein. Erforderlichenf lls können die Zusatzräder oder einige von ihnen in Achsrichtung ausziehbar sein, so daß DTires can be foamed with plastic, for example. If necessary, the auxiliary wheels or some of them can be extendable in the axial direction so that D
dadurch die Standfläche vergrößert werden kann. Zweckmäßigerweise wird die Höhe der Zusatzräder und der Anschläge am Rahmen so gewählt, daß beim Absenken des Rahmens in die untere Stellung die Gesamtachslast auf die vorhandenen Achsen gleichmäßig verteilt wird.this allows the footprint to be increased. The height of the additional wheels and the stops on the frame is expediently chosen so that when the frame is lowered into the lower position, the total axle load is evenly distributed over the existing axles.
Das vorgeschlagene Fahrzeug kann als selbstfahrender Lastwagen, als Anhänger oder als Sattelauflieger ausgebildet sein. In den beiden erstgenannten Fällen kann die lenkbare Achse auch zur Lenkung im Arbeitsbetrieb herangezogen werden. Außer für eineThe proposed vehicle can be designed as a self-driving truck, as a trailer or as a semi-trailer. In the first two cases mentioned, the steerable axle can also be used for steering in work mode. Except for one
Brückenuntersichtvorrichtung kann ein solches Fahrzeug auch für Mobillifte, fahrbare Hocharbeitsbühnen oder für Arbeitsmaschinen, z. B. Straßenbaumaschinen, Verwendung inden.Bridge underside device such a vehicle can also be used for mobile lifts, mobile high-work platforms or for working machines, e.g. B. Road construction machinery, use in the.
Zwei Ausführungsbeispiele der Erfindung werden nachfolgend anhand der Zeichnung erläutert. Im einzelnen zeigtTwo embodiments of the invention are explained below with reference to the drawing. In detail shows
Fig. 1 die Seitenansicht eines Lastkraftwagens, auf dem eine Brückenuntersichtvorrichtung aufgebaut ist, in Straßentransportstellung ,1 is a side view of a truck, on which a bridge underside device is built, in the road transport position,
Fig. 2 die Seitenansicht dieses Fahrzeugs mit abgesenktem Rahmen bereit für den Arbeitsbetrieb,2 shows the side view of this vehicle with the frame lowered, ready for work,
Fig. 3 die Seitenansicht einer als Sattelauflieger ausgebildeten Brückenuntersichtvorrichtung in der Straßentransportstellung mit Zugfahrzeug,3 shows the side view of a bridge underside device designed as a semi-trailer in the road transport position with towing vehicle,
Fig. 4 die Seitenansicht dieser Vorrichtung bereit für den Arbeitsbetrieb, Fig. 5 in kleinerem Maßstab die Seitenansicht des Fahrgestells nach Fig. 4 mit aufgerichteter Brückenuntersichtvorrichtung beim Einsatz auf einer Brücke,4 shows the side view of this device ready for work, 5 on a smaller scale the side view of the chassis according to FIG. 4 with the bridge underside device erected when used on a bridge,
Fig. 6 einen schematischen Querschnitt eines solchen Fahrzeugs im Bereich des druckluftgefederten Achsaggregats, wobei sich der Rahmen mit Stützwalzen in der oberen Stellung befindet und6 shows a schematic cross section of such a vehicle in the region of the compressed air-sprung axle assembly, the frame with support rollers being in the upper position, and
Fig. 7 die Darstellung nach Fig. 6 mit abgesenktem Rahmen.Fig. 7 shows the representation of FIG. 6 with the frame lowered.
Der Lastkraftwagen nach den Figuren 1 und 2 hat einen als ebene Pritsche ausgebildeten Rahmen 1 und insgesamt fünf Achsen, die mit gleich großen gummibereiften Rädern versehen sind, wie sie üblicherweise fürThe truck according to FIGS. 1 and 2 has a frame 1 designed as a flat platform and a total of five axles which are provided with rubber tires of the same size as are usually used for
Straßentransportfahrzeuge dieser Art verwendet werden. Die Vorderachse 2 ist wie üblich lenkbar und gefedert. Die beiden mittleren Hinterachsen sind die Antriebsachsen. Sie bilden ein Achsaggregat 3 mit Druckluftfederung und einer Einrichtung zur Höhenverstellung. Die beiden erwähnten Achsen sind mit Hilfe von Längslenkern 4 am Fahrzeugrahmen schwenkbar angelenkt. Die luftgefüllten Federbalgen sind mit 5 angedeutet. Über jedem der vier Räder des Achsaggregats 3 ist eine achsparallele Stützwalze 6 im Abstand von etwa 12 cm angeordnet. Diese Stützwalzen sind mit Hilfe rotierender Hydromotoren langsam antreibbar. Vor und hinter dem Achsaggregat 3 befindet sich je eine Zusatzachse 7 bzw. 8, die fest, d. h. nicht federnd, am Rahmen 1 angebracht sind. Die Zusatzräder laufen in der Spur der Räder des Achsaggregats 3. Die Räder der Zusatzachsen 7 und 8 sitzen so hoch, daß sie zur Fahrbahnoberfläche einen Abstand von etwa 12 cm haben. Die auf dem Rahmen 1 angebrachteRoad transport vehicles of this type are used. The front axle 2 is steerable and sprung as usual. The two middle rear axles are the drive axles. They form an axle assembly 3 with compressed air suspension and a device for height adjustment. The two axles mentioned are pivoted on the vehicle frame by means of trailing arms 4. The air-filled bellows are indicated by 5. An axially parallel support roller 6 is arranged at a distance of about 12 cm above each of the four wheels of the axle assembly 3. These backup rolls can be driven slowly with the help of rotating hydraulic motors. In front of and behind the axle assembly 3 there is an additional axle 7 and 8, respectively, which are fixed, ie not resilient, to the frame 1. The additional wheels run in the track of the wheels of the axle assembly 3. The wheels of the additional axles 7 and 8 are so high that they are at a distance of about 12 cm from the road surface. The one attached to frame 1
Brückenuntersichtvorrichtung besteht im wesentlichen aus einem Hubturm 9 und einem Arbeitssteg 10, der um 90° gekippt ist, so daß sein Boden vertikal steht. Der Hubturm hat einen mittels eines Drehkranzes 11 um die Turmachse drehbaren unteren Turmabschnitt 12. An diesem ist der Arbeitssteg 10 um eine Querachse 13 schwenkbar angelenkt. Der Hubturm 9 ist an einem Fuhrungsrahmen 14 in Längsrichtung verschiebbar gelagert. Dieser Fuhrungsrahmen ist mit Hilfe von Parallelhebeln 15 und 16 an einem Klapprahmen 17 angelenkt. Dieser wiederum ist um eine horizontale Querachse 18 beweglich an einem Drehschemel 19 gelagert, der sich um eine Hochachse 20 auf dem Rahmen 1 dreht.Bridge underside device consists essentially of a lifting tower 9 and a work platform 10 which is tilted by 90 ° so that its bottom is vertical. The lifting tower has a lower tower section 12, which can be rotated about the tower axis by means of a turntable 11. The work web 10 is pivotably connected to this at a transverse axis 13. The lifting tower 9 is mounted on a guide frame 14 so as to be displaceable in the longitudinal direction. This guide frame is articulated on a snap frame 17 by means of parallel levers 15 and 16. This in turn is movably mounted about a horizontal transverse axis 18 on a turntable 19 which rotates on the frame 1 about a vertical axis 20.
Mit der zusammengeklappten Brückenuntersichtvorrichtung und den drei gefederten luftbereiften Achsen gemäß Fig. 1 ist das Fahrzeug für den Straßentransportbetrieb geeignet. Die Stützwalzen 6 liegen frei und die Räder der Zusatzachsen 7 und 8 haben keine Bodenberührung. Vor dem Aufrichten der Brückenuntersichtvorrichtung wird das Fahrzeug gemäß Fig. 2 durch Absenken des Rahmens 1 für die ArbeitsStellung vorbereitet. Durch Verringern des Luftdrucks in den Federbalgen 5 werden diese unter dem Gewicht des beladenen Rahmens zusammengedrückt und verkürzen sich. Der Rahmen sinkt nach unten, bis die Zusatzräder Bodenkontakt bekommen und belastet werden. Mit dem Rahmen 1 haben sich auch die Lagerböcke 21 der Längslenker abgesenkt und die Stützwalzen 6 drücken auf die Reifen des Achsaggregats 3. Somit verteilt sich die Gesamtachslast des hinteren Fahrzeugabschnitts von zwei auf vier Achsen.With the folded-down bridge underside device and the three sprung pneumatic tires according to FIG. 1, the vehicle is suitable for road transport operation. The support rollers 6 are exposed and the wheels of the additional axles 7 and 8 have no ground contact. Before erecting the underside of the bridge, the vehicle is prepared according to FIG. 2 by lowering the frame 1 for the working position. By reducing the air pressure in the bellows 5, these are compressed under the weight of the loaded frame and shorten. The frame sinks down until the additional wheels come into contact with the ground and are loaded. With the frame 1, the bearing blocks 21 of the trailing arms have also been lowered and the support rollers 6 press on the tires of the axle assembly 3. The total axle load of the rear vehicle section is thus distributed from two to four axles.
Die Figuren 6 und 7 zeigen insbesondere die Stützwalzen 6 deutlicher. Diese haben eine durchgehende Welle 22 und sind so konstruiert, daß sie die erheblichen Radialkräfte der hier mit 23 bezeichneten Räder des Achsaggregats 3 aufnehmen können. Beim Absenken infolge Verringerung des Luftdrucks in den Federbalgen 5 kommen die am Rahmen 1 befestigten oberen Anschläge 24 mit den an der Achse befestigten unteren Anschlägen 25 zur Anlage. Das bedeutet, daß in der abgesenkten Stellung - ungeachtet der Stützwalzen 6 - die in Fahrzeuglängsrichtung verlaufenden äußeren seitlichen Begrenzungskanten der Anschläge 24 die maßgebenden Kippkanten des Fahrzeugaufbaus sind. Infolge der belasteten Stützwalzen 6 gemäß Fig. 7 werden diese Kippkanten etwa um den Abstand a seitlich nach außen verlegt. Die Stützwalzen leisten damit einen wesentlichen Beitrag zur Stabilität einer solchen Vorrichtung im Arbeitsbetrieb.Figures 6 and 7 in particular show the support rollers 6 more clearly. These have a continuous shaft 22 and are constructed in such a way that they can absorb the considerable radial forces of the wheels of the axle assembly 3, which are designated 23 here. When lowering as a result of a reduction in the air pressure in the bellows 5, the upper stops 24 attached to the frame 1 come into contact with the lower stops 25 attached to the axle. This means that in the lowered position - regardless of the support rollers 6 - the outer lateral boundary edges of the stops 24 running in the longitudinal direction of the vehicle are the decisive tilting edges of the vehicle body. As a result of the loaded support rollers 6 according to FIG. 7, these tilting edges are moved laterally outwards by a distance a. The backup rollers thus make a significant contribution to the stability of such a device in work.
Abgesehen davon wird der Reibkontakt zwischen den Stützwalzen und den Rädern 23 zum langsamen Fortbewegen des Fahrzeugs auf der Brücke benutzt. Die nicht dargestellten, an den Stützwalzen angreifenden Hydromotoren können auch vom Arbeitssteg aus ferngesteuert werden. Zum Lenken dient die Vorderachse 2, die mit einem Fernsteuer-Zusatz ausgestattet sein kann.Apart from this, the frictional contact between the support rollers and the wheels 23 is used for slowly moving the vehicle on the bridge. The hydraulic motors, not shown, which engage the support rollers can also be remotely controlled from the work platform. The front axle 2, which can be equipped with a remote control add-on, is used for steering.
Die Figuren 3 bis 5 zeigen als zweites Ausführungsbeispiel einen Sattelauflieger, auf dem eine gleiche Brückenuntersichtvorrichtung aufgebaut ist. In Fig. 3 befindet sich der ebenfalls als Plattform ausgebildete Rahmen 26 in der oberen Stellung zum Straßentransport. Das Zugfahrzeug 27 ist angekoppelt. Der Auflieger hat vier Achsen. Die beiden hinteren bilden ein druckluftgefedertes Achsaggregat 28. Unmittelbar vor diesem befindet sich eine fest angebrachte Zusatzachse 29 und in einem Abstand weiter vorne, im Bereich der Kröpfung des Aufliegerhalses ist eine weitere ebenfalls ungefederte Zusatzachse 30 vorgesehen. Diese ist lenkbar und außerdem an kurzen Längshebeln 31 angebracht, die mittels* eines kleinen hydraulischen Hubzylinders 32 oder einer handbetätigten Winde zwischen einer oberen und. unteren Position verstellt werden können, so daß diese Zuatzachse 30 um etwa 10 cm _, abgesenkt und angehoben werden kann. Für die Straßentransportfahrt befindet sie sich in ihrer oberen Stellung, so daß sich ein Bodenabstand von 22 cm ergibt. Die Zusatzachse 29 hat einen Bodenabstand von 12 cm. Das Achsaggregat 28 federt. Eine Stützwalze 33 über dem letzten Rad und ein Stützwalzenpaar 34 über dem vorletzten Rad sind außer Eingriff.FIGS. 3 to 5 show, as a second exemplary embodiment, a semi-trailer on which an identical bridge underside device is constructed. In Fig. 3, the frame 26, also designed as a platform, is in the upper position for road transport. The towing vehicle 27 is coupled. The trailer has four axles. The two rear axles form an axle assembly 28 with compressed air suspension. Immediately in front of this there is a permanently attached additional axle 29 and at a distance further to the front, in the area of the cranking of the semitrailer neck there is a further likewise unsprung additional axle 30. This is steerable and also short Longitudinal levers 31 attached, which by means of * a small hydraulic lifting cylinder 32 or a manual winch between an upper and. lower position can be adjusted so that this additional axis 30 can be lowered and raised by approximately 10 cm. It is in its upper position for road transport, so that there is a ground clearance of 22 cm. The additional axis 29 has a ground clearance of 12 cm. The axle assembly 28 springs. A backup roller 33 over the last wheel and a pair of backup rollers 34 over the penultimate wheel are disengaged.
Das Abkoppeln vom Zugfahrzeug 27 erfolgt in der Weise, daß zunächst die Zusatzachse 30 in ihre untere Stellung verbracht und verriegelt wird, so daß beide Zusatzachsen den gleichen Bodenabstand von 12 cm haben. Nun werden die druckluftbetätigten Absenkeinrichtungen sowohl am Zugfahrzeug als auch am Achsaggregat 28 betätigt. Damit übernehmen sämtliche vier Achsen des Sattelaufliegers die Gesamtachslast, wie Fig. 4 zeigt. Das Zugfahrzeug 27 kann wegfahren. Die Stützwalzen, die auch in diesem Beispiel einen hydraulischen Langsamantrieb aufweisen, sind in Eingriff. Mit der einfachen Lenkvorrichtung der Zusatzachse 30 kann das Fahrzeug der vorbestimmten Spur auf der Brücke folgen.The uncoupling from the towing vehicle 27 takes place in such a way that the additional axis 30 is first brought into its lower position and locked, so that both additional axes have the same ground clearance of 12 cm. Now the compressed air-operated lowering devices are actuated both on the towing vehicle and on the axle assembly 28. All four axles of the semi-trailer thus assume the total axle load, as shown in FIG. 4. The towing vehicle 27 can move away. The support rollers, which also have a slow hydraulic drive in this example, are engaged. With the simple steering device of the additional axle 30, the vehicle can follow the predetermined lane on the bridge.
Um die Brückenuntersichtvorrichtung in ihre ArbeitsStellung gemäß Fig. 5 zu bringen, wird (siehe Fig. 1) der Drehschemel 19 um seine Hochachse 20 gedreht und gleichzeitig der Klapprahmen 17 um seine Achse 18 hochgeschwenkt und zwar mittels eines Hubzylinders, der strichpunktiert angedeutet ist. Damit wandert das Turmunterteil 12 über die Brüstung der Brücke und schwenkt zunehmend weiter nach unten. Zusätzlich können noch die Parallelarme 15, 16, ebenfalls mittels eines strichpunktiert angedeuteten Hubzylinders vom Klapprahmen 17 weggeschwenkt werden. Wenn der Drehschemel 19 seine 90"-Stellung erreicht hat und der Hubturm 9 vertikal steht, wird der Arbeitssteg 10 um die Achse 13 seitlich in die Horizontale geklappt und danach mittels des Drehkranzes 11 um 90° unter die Brücke geschwenkt. Diese Arbeitsposition zeigt Fig. 5.5, (see Fig. 1) the turntable 19 is rotated about its vertical axis 20 and at the same time the folding frame 17 is pivoted up about its axis 18 by means of a lifting cylinder, which is indicated by dash-dotted lines. The lower part of the tower 12 thus moves over the parapet of the bridge and swivels further downward. In addition, the parallel arms 15, 16, also by means of a stroke cylinder indicated by dash-dotted lines, from the snap frame 17 are pivoted away. When the turntable 19 has reached its 90 "position and the lifting tower 9 is vertical, the work platform 10 is laterally folded horizontally about the axis 13 and then pivoted by 90 ° under the bridge by means of the turntable 11. This working position is shown in FIG. 5.
Vielerlei Varianten der in diesen Beispielen beschriebenen Achs nordnungen sind möglich. Der Sattelauflieger könnte z. B. ein gefedertes Achsaggregat mit drei Achsen haben. Es könnte auch hinter dem Achsaggregat eine Zusatzachse angeordnet sein, wobei je nach der Längsposition des Fahrzeugschwerpunkts die vordere lastfrei hochnehmbare Zusatzachse 30 entfallen könnte. In diesem Fall müßten eine oder mehrere Zusatzachsen lenkbar sein. Auch bei dem Lastkraftwagen könnten mehr oder weniger Achsen vorgesehen sein. Vorteilhaft wäre auch die Lenkbarkeit der hinteren Zusatzachse hinter dem gefederten Achsaggregat. Many variations of the axis northings described in these examples are possible. The semi-trailer could e.g. B. have a sprung axle assembly with three axles. An additional axle could also be arranged behind the axle unit, the front additional axle 30, which can be lifted free of load, being eliminated depending on the longitudinal position of the center of gravity of the vehicle. In this case, one or more additional axles should be steerable. More or fewer axles could also be provided in the truck. It would also be advantageous to be able to steer the rear additional axle behind the sprung axle assembly.
Abstand distance

Claims

Ansprüche: Expectations:
1. Fahrzeug, insbesondere Fahrgestell einer Brückenuntersichtvorrichtung, mit einem Rahmen und mit Straßenfahrzeugrädern, dadurch gekennzeichnet, daß ein druckmittelgefedertes Achsaggregat (3) mit wenigstens einer Achse vorgesehen ist, das eine mit der Federungsanlage verbundene druckmittelbetätigte Einrichtung (4, 5) aufweist, mit deren Hilfe der Rahmen (1) von einer oberen Stellung, in welcher die Federung wirksam ist, in eine untere Stellung abgesenkt werden kann, in der der Rahmen auf tragenden Anschlägen (24, 25) der Achsen dieses Achsaggregats ungefedert aufliegt, und daß vor und/oder hinter dem Achsaggregat (3) wenigstens ein nicht gefedertes Zusatzrad am Rahmen (1) angeordnet ist, welches Zusatzrad in der oberen Stellung des Rahmens von der Fahrbahn abgehoben ist, mit dem Rahmen (1) zusammen abgesenkt wird und in der unteren Stellung des Rahmens auf der Fahrbahn aufsteht und einen Teil der Gesamtachslast übernimmt.1. Vehicle, in particular chassis of a bridge underside device, with a frame and with road vehicle wheels, characterized in that a pressure-sprung axle assembly (3) is provided with at least one axle, which has a pressure-medium-actuated device (4, 5) connected to the suspension system, with its The frame (1) can be lowered from an upper position, in which the suspension is effective, to a lower position, in which the frame rests on supporting stops (24, 25) of the axles of this axle assembly and that before and / / or behind the axle assembly (3) at least one non-sprung auxiliary wheel is arranged on the frame (1), which auxiliary wheel is lifted off the road in the upper position of the frame, is lowered together with the frame (1) and in the lower position of the frame gets up on the road and takes over part of the total axle load.
2. Fahrzeug nach Anspruch 1, dadurch gekennzeichnet, daß wenigstens eine Zusatzachse (7, 8) mit zwei Zusatzrädern vorgesehen ist.2. Vehicle according to claim 1, characterized in that at least one additional axle (7, 8) is provided with two additional wheels.
3. Fahrzeug nach Anspruch 1, dadurch gekennzeichnet, daß wenigstens ein Zusatzrad lenkbar ist.3. Vehicle according to claim 1, characterized in that at least one additional wheel is steerable.
4. Fahrzeug nach Anspruch 2, dadurch gekennzeichnet, daß eine Zusatzachse (30) eine Verstellvorrichtung (31,4. Vehicle according to claim 2, characterized in that an additional axis (30) an adjusting device (31,
32) aufweist, mit deren Hilfe sie unbelastet zwischen zwei verschieden hohen Stellungen bewegt und in diesen Stellungen am Rahmen (26) arretiert werden kann. - - -32), with the help of which it can be moved unloaded between two different high positions and locked in these positions on the frame (26). - - -
5. Fahrzeug nach Anspruch 1, gekennzeichnet durch eine Ausbildung als Sattelauflieger (Fig. 3).5. Vehicle according to claim 1, characterized by training as a semi-trailer (Fig. 3).
6. Fahrzeug nach Anspruch 1, dadurch gekennzeichnet--, daß wenigstens eines der Räder einen Langsamantrieb aufweist.6. Vehicle according to claim 1, characterized in that at least one of the wheels has a slow drive.
7. Fahrzeug nach Anspruch 1, dadurch gekennzeichnet, daß am Rahmen (1) über wenigstens einem Rad des Achsaggregats (3) eine achsparallele Stützwalze (6) angeordnet ist, an die sich in der unteren Stellung des Rahmens der Reifen des Rades mit seiner Lauffläche anlegt,7. Vehicle according to claim 1, characterized in that on the frame (1) via at least one wheel of the axle assembly (3) an axially parallel support roller (6) is arranged, to which in the lower position of the frame of the tire of the wheel with its tread docks,
8. Fahrzeug nach Anspruch 7, dadurch gekennzeichnet, daß für ein Rad mehrere Stützwalzen (34) vorgesehen sind.8. Vehicle according to claim 7, characterized in that a plurality of support rollers (34) are provided for a wheel.
9. Fahrzeug nach Anspruch 7, dadurch gekennzeichnet, daß die Stützwalze langsam antreibbar ist.9. Vehicle according to claim 7, characterized in that the support roller can be driven slowly.
10. Fahrzeug nach Anspruch 1, dadurch gekennzeichnet, daß die Zusatzräder Reifen mit einem härteren Federungsverhalten als die Reifen der Räder des Achsaggregats aufweisen. 10. Vehicle according to claim 1, characterized in that the additional wheels have tires with a harder suspension behavior than the tires of the wheels of the axle assembly.
EP90901740A 1989-01-23 1990-01-23 Vehicle, in particular chassis for a bridge inspection device Expired - Lifetime EP0454709B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT90901740T ATE95864T1 (en) 1989-01-23 1990-01-23 VEHICLE, IN PARTICULAR CHASSIS OF AN UNDERBRIDGE VIEWING DEVICE.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE8900673U 1989-01-23
DE8900673U DE8900673U1 (en) 1989-01-23 1989-01-23 Vehicle with a pressure-sprung axle assembly

Publications (2)

Publication Number Publication Date
EP0454709A1 true EP0454709A1 (en) 1991-11-06
EP0454709B1 EP0454709B1 (en) 1993-10-13

Family

ID=6835264

Family Applications (1)

Application Number Title Priority Date Filing Date
EP90901740A Expired - Lifetime EP0454709B1 (en) 1989-01-23 1990-01-23 Vehicle, in particular chassis for a bridge inspection device

Country Status (8)

Country Link
US (1) US5167295A (en)
EP (1) EP0454709B1 (en)
JP (1) JP2901753B2 (en)
AU (1) AU632784B2 (en)
CA (1) CA2045635A1 (en)
DE (2) DE8900673U1 (en)
ES (1) ES2047914T3 (en)
WO (1) WO1990008228A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4368778A1 (en) 2022-11-14 2024-05-15 Weico Srl Vehicle and/or trailer with platform for bridge testing

Families Citing this family (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8910749U1 (en) * 1989-09-08 1991-02-07 Moog, Alfons, 7774 Deggenhausertal Bridge underside inspection device
NZ255975A (en) * 1992-09-23 1995-10-26 Pallet Boss Pty Ltd Load transport vehicle; comprises a towable wheeled unit, the wheels being journalled on axles on trailing arms provided with springs to share the load
US6598702B1 (en) * 2000-07-13 2003-07-29 Mcgillewie, Jr. Garth E. Under bridge access apparatus with cross-linking member connecting tower with vehicular chassis
US6698371B1 (en) 2002-10-28 2004-03-02 Harold A. Stoltzfus Boat with personnel elevator apparatus
US7134829B2 (en) 2004-03-09 2006-11-14 Absolute Electronic Solutions, Inc. Cargo trailer
US7950675B1 (en) 2005-05-13 2011-05-31 Absolute Electronic Solutions, Inc. Cargo carrier
US7406919B2 (en) * 2005-11-02 2008-08-05 Coots William R Method and apparatus for operating a vehicle on rails of a railroad track with an auxiliary drive assembly
WO2009158329A2 (en) 2008-06-27 2009-12-30 Absolute Electronic Solutions, Inc. Fifth wheel trailer with adjustable deck
GB2488983C (en) * 2011-03-08 2014-12-03 Suspended structure, scaffolding or formwork system
GB2506944B (en) * 2012-10-15 2017-02-22 Niftylift Ltd Base unit for a vehicle
US9446662B2 (en) 2013-02-22 2016-09-20 B & B Metals, Inc. Auxiliary drive system
CN103306201B (en) * 2013-07-11 2015-02-04 鞍山森远路桥股份有限公司 Road and bridge high-speed maintenance engineering vehicle
CN104947586A (en) * 2015-04-28 2015-09-30 湖南桥康智能科技有限公司 Bridge detection operating vehicle
CN104950913A (en) * 2015-05-19 2015-09-30 湖南桥康智能科技有限公司 One-key unfolding control system of cantilever crane of bridge detecting robot
CN105862587B (en) * 2016-05-27 2017-05-31 北京恒力铁科技术开发有限公司 A kind of bridge inspection vehicle and detection method

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US676409A (en) * 1901-01-09 1901-06-18 Paul E Berger Vehicle.
US1005291A (en) * 1911-04-29 1911-10-10 Edwin G Owen Friction driving mechanism for motor-vehicles.
FR865385A (en) * 1940-01-20 1941-05-21 Const Mecaniques Chenard & Wal Improvements to vehicles for all terrains
US3262517A (en) * 1964-11-18 1966-07-26 Jerry P Malec Bridge crane
US3502165A (en) * 1967-01-16 1970-03-24 Kosuke Matsukata Gas-electric driven vehicle with retractable wheels
FR2256066B1 (en) * 1974-10-09 1977-03-18 Ppm Sa
DE2711214A1 (en) * 1977-03-15 1979-01-25 Josef Dipl Ing Koza Auxiliary drive for non-driven wheels of motor vehicle - has low speed hydraulic motor with drive gears of metal, plastics or hard rubber
US4318451A (en) * 1980-05-27 1982-03-09 The Warner & Swasey Company Dual function remote steering control
NL8103962A (en) * 1980-12-11 1982-07-01 Moessbauer & Soehne AXLE ATTACHMENT WITH AT LEAST TWO AXLES, PARTICULARLY FOR TRAILERS WITH MORE THAN AN AXLE FOR TRAILER VEHICLES.
DE3305384A1 (en) * 1982-09-14 1984-03-15 Alfons 7774 Deggenhausertal Moog Device for inspecting the underside of bridges
DE3309729A1 (en) * 1983-03-18 1984-09-27 Bergische Achsenfabrik Fr. Kotz & Söhne, 5276 Wiehl AXLE LIFTING DEVICE
DE3332227C2 (en) * 1983-09-07 1985-07-25 Peter 5800 Hagen Cramer Bridge viewing device
DE8337221U1 (en) * 1983-12-24 1984-04-05 Moog, Alfons, 7774 Deggenhausertal Bridge viewing device
EP0205265B1 (en) * 1985-05-30 1989-08-16 Toyota Jidosha Kabushiki Kaisha Vehicle for aerial working
FR2590537A1 (en) * 1985-11-22 1987-05-29 Maupu Sarl Bennes Skip for high tonnages ensuring good distribution of the load to the ground and having good manoeuvrability
US4846581A (en) * 1987-04-07 1989-07-11 Osterlund Inc. Rear discharge-two way concrete mixer
FR2623755B1 (en) * 1987-11-30 1990-05-04 Prefabrication Elect Ste Indle DEVICE FOR LOWERING THE REAR OF A ROAD VEHICLE TO BRING IT TO THE GROUND

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9008228A1 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP4368778A1 (en) 2022-11-14 2024-05-15 Weico Srl Vehicle and/or trailer with platform for bridge testing

Also Published As

Publication number Publication date
WO1990008228A1 (en) 1990-07-26
US5167295A (en) 1992-12-01
AU4842990A (en) 1990-08-13
ES2047914T3 (en) 1994-03-01
EP0454709B1 (en) 1993-10-13
AU632784B2 (en) 1993-01-14
DE8900673U1 (en) 1990-06-07
JPH04502792A (en) 1992-05-21
CA2045635A1 (en) 1990-07-24
JP2901753B2 (en) 1999-06-07
DE59003091D1 (en) 1993-11-18

Similar Documents

Publication Publication Date Title
EP0454709B1 (en) Vehicle, in particular chassis for a bridge inspection device
DE2416642C3 (en) Device for transporting a load in open-cast mining operations, in particular for backing belt drive stations
DE3302998C2 (en) Wheel suspension for wheels or wheel axles that can be swiveled into the vehicle body
DE2437228A1 (en) AUXILIARY AXLE SUSPENSION SYSTEM
DE3331342A1 (en) TOWING AID FOR VEHICLES
DE3642079C2 (en)
DE29512152U1 (en) Trailer for a motor vehicle
DE2837398A1 (en) Self-propelled crane for heavy loads - has steerable multi-axle trailer to carry rear outrigger support legs
DE4238248A1 (en)
DE9406572U1 (en) Chassis, in particular for mobile work equipment and vehicles
DE3405259C2 (en) Road low loaders, in particular low loader trailers for tractor units
EP1318066A1 (en) Trailer vehicle for connection to a tractor, especially to a heavy load transport vehicle
EP0919508B1 (en) Crane having a holding device
DE4024825C1 (en) Support legs for semi-trailer - has inner tube sections with supports for feet which pivot
EP0286576B1 (en) Transport vehicle
DE3108111A1 (en) Truck slewing crane
DE19708750A1 (en) Multi-wheeled bogie for non rail mounted mobile crane
DE3939384A1 (en) ROAD-RAIL TRANSPORT SYSTEM
AT243628B (en) Car transport trucks
DE3741754A1 (en) Heavy transportation vehicle
EP0399233B1 (en) Elevating platform
EP0795436B1 (en) Vehicle, especially refuse collection vehicle, with a container in the form of an interchangeable collecting unit
DE2314503C2 (en) Tower crane with erection device
EP0945399B1 (en) Mobile work platform with three vehicles
DE3807515C1 (en) Supporting structure for lifting vehicles under the wheels

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 19910719

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AT BE CH DE ES FR GB IT LI NL SE

17Q First examination report despatched

Effective date: 19921217

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): AT BE CH DE ES FR GB IT LI NL SE

REF Corresponds to:

Ref document number: 95864

Country of ref document: AT

Date of ref document: 19931015

Kind code of ref document: T

REF Corresponds to:

Ref document number: 59003091

Country of ref document: DE

Date of ref document: 19931118

ITF It: translation for a ep patent filed

Owner name: UFFICIO TECNICO ING. A. MANNUCCI

ET Fr: translation filed
GBT Gb: translation of ep patent filed (gb section 77(6)(a)/1977)

Effective date: 19940119

REG Reference to a national code

Ref country code: ES

Ref legal event code: FG2A

Ref document number: 2047914

Country of ref document: ES

Kind code of ref document: T3

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed
EAL Se: european patent in force in sweden

Ref document number: 90901740.2

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: NL

Payment date: 20010119

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: CH

Payment date: 20010125

Year of fee payment: 12

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: BE

Payment date: 20010131

Year of fee payment: 12

REG Reference to a national code

Ref country code: GB

Ref legal event code: IF02

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: LI

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020131

Ref country code: CH

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020131

Ref country code: BE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020131

BERE Be: lapsed

Owner name: MOOG ALFONS

Effective date: 20020131

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: NL

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20020801

REG Reference to a national code

Ref country code: CH

Ref legal event code: PL

NLV4 Nl: lapsed or anulled due to non-payment of the annual fee

Effective date: 20020801

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: SE

Payment date: 20030110

Year of fee payment: 14

Ref country code: GB

Payment date: 20030110

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: ES

Payment date: 20030113

Year of fee payment: 14

Ref country code: AT

Payment date: 20030113

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: FR

Payment date: 20030122

Year of fee payment: 14

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20030207

Year of fee payment: 14

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: GB

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040123

Ref country code: AT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040123

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: SE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040124

Ref country code: ES

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040124

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: DE

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040803

EUG Se: european patent has lapsed
GBPC Gb: european patent ceased through non-payment of renewal fee

Effective date: 20040123

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: FR

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20040930

REG Reference to a national code

Ref country code: FR

Ref legal event code: ST

PG25 Lapsed in a contracting state [announced via postgrant information from national office to epo]

Ref country code: IT

Free format text: LAPSE BECAUSE OF NON-PAYMENT OF DUE FEES

Effective date: 20050123

REG Reference to a national code

Ref country code: ES

Ref legal event code: FD2A

Effective date: 20040124